======================================
| [   10.538620][  T212] softirqs last disabled at (25815): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.538623][  T212] Preemption disabled at:
| [   10.538623][  T212] 0x0
| [   10.538634][  T212] Tainted: [W]=WARN
[   10.538634][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.538636][  T212] Call Trace:
[   10.538638][  T212]  <TASK>
[   10.538639][  T212]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.538646][  T212]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.538650][  T212]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.538654][  T212]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.538659][  T212]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.538661][  T212]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.538667][  T212]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.538670][  T212]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.538674][  T212]  put_chars (drivers/char/virtio_console.c:1176)
[   10.538677][  T212]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.538678][  T212]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.538681][  T212]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.538687][  T212]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.538694][  T212]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.538697][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.538699][  T212]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.538703][  T212]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.538707][  T212]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.538708][  T212]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.538712][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.538713][  T212]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.538717][  T212]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.538721][  T212]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.538723][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.538729][  T212]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.538732][  T212]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.538733][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.538735][  T212]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.538739][  T212]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.538741][  T212]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.538744][  T212]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.538747][  T212]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.538749][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.538753][  T212]  _printk (kernel/printk/printk.c:2504)
[   10.538757][  T212]  ? snapshot_read.cold (user.c:?)
[   10.538759][  T212]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.538762][  T212]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.538766][  T212]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.538769][  T212]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.538772][  T212]  ? exit_notify (kernel/exit.c:780)
[   10.538774][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.538776][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.538780][  T212]  do_group_exit (kernel/exit.c:1151)
[   10.538783][  T212]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.538785][  T212]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.538787][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.538791][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.538794][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.538796][  T212] RIP: 0033:0x7f578555d1b8
[   10.538798][  T212] Code: Unable to access opcode bytes at 0x7f578555d18e.

Code starting with the faulting instruction
===========================================
[   10.538799][  T212] RSP: 002b:00007ffc8c7cf4c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.538801][  T212] RAX: ffffffffffffffda RBX: 00007f578568df88 RCX: 00007f578555d1b8
[   10.538803][  T212] RDX: 00007f57852a7fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.538804][  T212] RBP: 00007ffc8c7cf520 R08: 0000000000000000 R09: 0000000000008010
[   10.538805][  T212] R10: 00007ffc8c7cf2e0 R11: 0000000000000246 R12: 0000000000000001
[   10.538805][  T212] R13: 0000000000000000 R14: 00007f578568c680 R15: 00007f578568dfa0
| [   12.180443][  T277] softirqs last disabled at (18754): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.180445][  T277] Preemption disabled at:
| [   12.180446][  T277] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.180456][  T277] Tainted: [W]=WARN
[   12.180457][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.180458][  T277] Call Trace:
[   12.180460][  T277]  <TASK>
[   12.180462][  T277]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.180468][  T277]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.180470][  T277]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.180474][  T277]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.180479][  T277]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.180483][  T277]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.180485][  T277]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.180492][  T277]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.180495][  T277]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.180499][  T277]  put_chars (drivers/char/virtio_console.c:1176)
[   12.180501][  T277]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.180508][  T277]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.180516][  T277]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.180519][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.180524][  T277]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.180528][  T277]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.180530][  T277]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.180533][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180536][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.180540][  T277]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.180544][  T277]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.180546][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.180552][  T277]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.180555][  T277]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.180557][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180559][  T277]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.180563][  T277]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.180564][  T277]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.180567][  T277]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.180570][  T277]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.180573][  T277]  ? save_trace (kernel/locking/lockdep.c:589)
[   12.180578][  T277]  _printk (kernel/printk/printk.c:2504)
[   12.180581][  T277]  ? snapshot_read.cold (user.c:?)
[   12.180585][  T277]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.180587][  T277]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.180591][  T277]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.180594][  T277]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.180597][  T277]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.180599][  T277]  ? netdev_notice (net/core/dev.c:13194)
[   12.180602][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.180605][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.180608][  T277]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.180611][  T277]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.180613][  T277]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.180616][  T277]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   12.180622][  T277]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.180624][  T277]  ? __kernel_text_address (kernel/extable.c:79)
[   12.180627][  T277]  ? write_profile (profile.c:?)
[   12.180631][  T277]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.180637][  T277]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.180641][  T277]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.180643][  T277]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.180644][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.180647][  T277]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.180650][  T277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.180653][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.180655][  T277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.180657][  T277]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.180659][  T277]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.180660][  T277]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.180661][  T277]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.180664][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.180666][  T277]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.180669][  T277]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.180673][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.180675][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.180678][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180680][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.180681][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180683][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180684][  T277]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.180687][  T277]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.180689][  T277]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.180692][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.180695][  T277]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.180696][  T277]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.180701][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180704][  T277]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.180709][  T277]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.180715][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.180717][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.180722][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.180724][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.180726][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.180727][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.180731][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.180734][  T277]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.180737][  T277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.180738][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.180743][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.180745][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.180749][  T277]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.180752][  T277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.180755][  T277]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.180762][  T277]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.180764][  T277]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.180769][  T277]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.180773][  T277]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.180776][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.180780][  T277]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.180785][  T277]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.180789][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.180791][  T277]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.180796][  T277]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.180799][  T277]  ____sys_sendmsg (net/socket.c:2713)
[   12.180801][  T277]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.180804][  T277]  ? sock_write_iter (net/socket.c:1269)
[   12.180806][  T277]  ? move_addr_to_kernel (net/socket.c:258)
[   12.180814][  T277]  ___sys_sendmsg (net/socket.c:2767)
[   12.180817][  T277]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.180834][  T277]  __sys_sendmsg (net/socket.c:2799)
[   12.180836][  T277]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.180843][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180846][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.180849][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.180852][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.180855][  T277] RIP: 0033:0x7f1680f8954e
[   12.180859][  T277] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.180861][  T277] RSP: 002b:00007ffd90fc8730 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.180863][  T277] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1680f8954e
[   12.180865][  T277] RDX: 0000000000000000 RSI: 00007ffd90fc87e0 RDI: 0000000000000005
[   12.180866][  T277] RBP: 00007ffd90fc8740 R08: 0000000000000000 R09: 0000000000000000
[   12.180866][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91045a
[   12.180867][  T277] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd90fc8eb0
| [   23.853115][  T546] softirqs last disabled at (27528): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   23.853118][  T546] Preemption disabled at:
| [   23.853118][  T546] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.853127][  T546] Tainted: [W]=WARN
[   23.853128][  T546] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.853129][  T546] Call Trace:
[   23.853131][  T546]  <TASK>
[   23.853133][  T546]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.853139][  T546]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.853140][  T546]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.853145][  T546]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.853149][  T546]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.853154][  T546]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   23.853156][  T546]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.853162][  T546]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.853165][  T546]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.853169][  T546]  put_chars (drivers/char/virtio_console.c:1176)
[   23.853172][  T546]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.853173][  T546]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.853177][  T546]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.853182][  T546]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.853190][  T546]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.853193][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853195][  T546]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.853199][  T546]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.853203][  T546]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.853205][  T546]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   23.853208][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853210][  T546]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.853214][  T546]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.853219][  T546]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.853221][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.853226][  T546]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.853229][  T546]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.853231][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853233][  T546]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   23.853236][  T546]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.853238][  T546]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.853241][  T546]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.853244][  T546]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.853246][  T546]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.853248][  T546]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   23.853252][  T546]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.853256][  T546]  _printk (kernel/printk/printk.c:2504)
[   23.853260][  T546]  ? snapshot_read.cold (user.c:?)
[   23.853264][  T546]  ? br_multicast_flood (??:?)
[   23.853267][  T546]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.853269][  T546]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.853270][  T546]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.853275][  T546]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   23.853279][  T546]  br_init_port (net/bridge/br_stp_if.c:39)
[   23.853282][  T546]  new_nbp (net/bridge/br_if.c:449)
[   23.853286][  T546]  br_add_if (net/bridge/br_if.c:592)
[   23.853288][  T546]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   23.853292][  T546]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   23.853298][  T546]  do_set_master (net/core/rtnetlink.c:3071)
[   23.853301][  T546]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.853305][  T546]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.853308][  T546]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.853310][  T546]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.853313][  T546]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.853316][  T546]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.853318][  T546]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.853320][  T546]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.853322][  T546]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.853325][  T546]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.853326][  T546]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.853328][  T546]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.853330][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.853332][  T546]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.853335][  T546]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.853339][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.853341][  T546]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.853344][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853345][  T546]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.853347][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853348][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853350][  T546]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.853352][  T546]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   23.853354][  T546]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.853356][  T546]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.853359][  T546]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.853360][  T546]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.853366][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853368][  T546]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.853373][  T546]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.853379][  T546]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.853381][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.853386][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.853388][  T546]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.853390][  T546]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.853392][  T546]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.853396][  T546]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.853398][  T546]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.853401][  T546]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.853403][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.853407][  T546]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.853409][  T546]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.853413][  T546]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.853416][  T546]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.853419][  T546]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.853429][  T546]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.853432][  T546]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.853437][  T546]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.853442][  T546]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.853444][  T546]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.853450][  T546]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.853454][  T546]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.853459][  T546]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.853461][  T546]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.853467][  T546]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.853470][  T546]  ____sys_sendmsg (net/socket.c:2713)
[   23.853473][  T546]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.853476][  T546]  ? sock_write_iter (net/socket.c:1269)
[   23.853477][  T546]  ? move_addr_to_kernel (net/socket.c:258)
[   23.853486][  T546]  ___sys_sendmsg (net/socket.c:2767)
[   23.853489][  T546]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.853506][  T546]  __sys_sendmsg (net/socket.c:2799)
[   23.853509][  T546]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.853516][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.853519][  T546]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.853522][  T546]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.853525][  T546]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.853527][  T546] RIP: 0033:0x7feb910ee54e
[   23.853531][  T546] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.853533][  T546] RSP: 002b:00007ffe533d2410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.853536][  T546] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007feb910ee54e
[   23.853537][  T546] RDX: 0000000000000000 RSI: 00007ffe533d24c0 RDI: 0000000000000005
[   23.853538][  T546] RBP: 00007ffe533d2420 R08: 0000000000000000 R09: 0000000000000000
[   23.853539][  T546] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910466
[   23.853540][  T546] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe533d2b90
| [   25.390638][  T634] softirqs last disabled at (22796): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   25.390640][  T634] Preemption disabled at:
| [   25.390641][  T634] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.390650][  T634] Tainted: [W]=WARN
[   25.390651][  T634] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.390652][  T634] Call Trace:
[   25.390654][  T634]  <TASK>
[   25.390656][  T634]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.390662][  T634]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.390663][  T634]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.390668][  T634]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.390672][  T634]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.390677][  T634]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   25.390678][  T634]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.390685][  T634]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.390688][  T634]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.390691][  T634]  put_chars (drivers/char/virtio_console.c:1176)
[   25.390694][  T634]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.390695][  T634]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.390699][  T634]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.390704][  T634]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.390712][  T634]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.390715][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390717][  T634]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.390721][  T634]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.390725][  T634]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.390727][  T634]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   25.390731][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390732][  T634]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.390737][  T634]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.390741][  T634]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.390743][  T634]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.390748][  T634]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.390751][  T634]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.390753][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390755][  T634]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   25.390759][  T634]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.390761][  T634]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.390763][  T634]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.390767][  T634]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.390768][  T634]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.390771][  T634]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.390775][  T634]  _printk (kernel/printk/printk.c:2504)
[   25.390779][  T634]  ? snapshot_read.cold (user.c:?)
[   25.390782][  T634]  ? br_multicast_flood (??:?)
[   25.390785][  T634]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.390787][  T634]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.390788][  T634]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.390793][  T634]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   25.390797][  T634]  br_init_port (net/bridge/br_stp_if.c:39)
[   25.390799][  T634]  new_nbp (net/bridge/br_if.c:449)
[   25.390803][  T634]  br_add_if (net/bridge/br_if.c:592)
[   25.390806][  T634]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   25.390809][  T634]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   25.390815][  T634]  do_set_master (net/core/rtnetlink.c:3071)
[   25.390818][  T634]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.390822][  T634]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.390825][  T634]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.390826][  T634]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.390829][  T634]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.390832][  T634]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.390834][  T634]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.390836][  T634]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.390839][  T634]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.390841][  T634]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.390842][  T634]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.390843][  T634]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.390846][  T634]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.390848][  T634]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   25.390851][  T634]  ? ___sys_sendmsg (net/socket.c:2758)
[   25.390855][  T634]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.390857][  T634]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.390859][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390861][  T634]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.390863][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390864][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390865][  T634]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.390868][  T634]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   25.390871][  T634]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.390872][  T634]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.390876][  T634]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.390877][  T634]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.390882][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.390885][  T634]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.390890][  T634]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.390896][  T634]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.390898][  T634]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.390902][  T634]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.390904][  T634]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.390906][  T634]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.390908][  T634]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.390912][  T634]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.390914][  T634]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.390917][  T634]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.390919][  T634]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.390923][  T634]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.390925][  T634]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.390929][  T634]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.390932][  T634]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.390935][  T634]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.390942][  T634]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.390944][  T634]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.390949][  T634]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.390953][  T634]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.390961][  T634]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.390969][  T634]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.390975][  T634]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.390981][  T634]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.390983][  T634]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.390989][  T634]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.390992][  T634]  ____sys_sendmsg (net/socket.c:2713)
[   25.390994][  T634]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.390997][  T634]  ? sock_write_iter (net/socket.c:1269)
[   25.390998][  T634]  ? move_addr_to_kernel (net/socket.c:258)
[   25.391006][  T634]  ___sys_sendmsg (net/socket.c:2767)
[   25.391009][  T634]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.391025][  T634]  __sys_sendmsg (net/socket.c:2799)
[   25.391027][  T634]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.391034][  T634]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.391037][  T634]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.391040][  T634]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.391043][  T634]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.391045][  T634] RIP: 0033:0x7f7afb2d554e
[   25.391049][  T634] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.391050][  T634] RSP: 002b:00007ffdcf7255b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.391053][  T634] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7afb2d554e
[   25.391055][  T634] RDX: 0000000000000000 RSI: 00007ffdcf725660 RDI: 0000000000000005
[   25.391056][  T634] RBP: 00007ffdcf7255c0 R08: 0000000000000000 R09: 0000000000000000
[   25.391056][  T634] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910467
[   25.391057][  T634] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdcf725d30
| [   26.836881][  T704] softirqs last disabled at (17444): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   26.836884][  T704] Preemption disabled at:
| [   26.836884][  T704] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.836894][  T704] Tainted: [W]=WARN
[   26.836894][  T704] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.836896][  T704] Call Trace:
[   26.836898][  T704]  <TASK>
[   26.836899][  T704]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.836906][  T704]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.836907][  T704]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.836912][  T704]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.836916][  T704]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.836921][  T704]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.836923][  T704]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.836930][  T704]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.836933][  T704]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.836937][  T704]  put_chars (drivers/char/virtio_console.c:1176)
[   26.836939][  T704]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.836940][  T704]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.836944][  T704]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.836950][  T704]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.836965][  T704]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.836968][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.836970][  T704]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.836974][  T704]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.836978][  T704]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.836980][  T704]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   26.836983][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.836985][  T704]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.836989][  T704]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.836994][  T704]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.836996][  T704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.837001][  T704]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.837004][  T704]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.837006][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.837008][  T704]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   26.837012][  T704]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.837013][  T704]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.837016][  T704]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.837019][  T704]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.837021][  T704]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.837024][  T704]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.837028][  T704]  _printk (kernel/printk/printk.c:2504)
[   26.837031][  T704]  ? snapshot_read.cold (user.c:?)
[   26.837035][  T704]  ? br_multicast_flood (??:?)
[   26.837039][  T704]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.837040][  T704]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.837041][  T704]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.837046][  T704]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.837050][  T704]  br_init_port (net/bridge/br_stp_if.c:39)
[   26.837052][  T704]  new_nbp (net/bridge/br_if.c:449)
[   26.837056][  T704]  br_add_if (net/bridge/br_if.c:592)
[   26.837059][  T704]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   26.837062][  T704]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   26.837068][  T704]  do_set_master (net/core/rtnetlink.c:3071)
[   26.837071][  T704]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.837075][  T704]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.837078][  T704]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.837079][  T704]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.837082][  T704]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.837085][  T704]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.837087][  T704]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.837089][  T704]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.837091][  T704]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.837094][  T704]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.837095][  T704]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.837096][  T704]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.837099][  T704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.837101][  T704]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   26.837103][  T704]  ? ___sys_sendmsg (net/socket.c:2758)
[   26.837107][  T704]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.837109][  T704]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.837112][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.837114][  T704]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.837115][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.837117][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.837118][  T704]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.837120][  T704]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   26.837123][  T704]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.837125][  T704]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.837128][  T704]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.837130][  T704]  ? nla_get_range_signed (lib/nlattr.c:270)
[   26.837134][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.837137][  T704]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.837142][  T704]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.837148][  T704]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.837150][  T704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.837154][  T704]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.837156][  T704]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.837159][  T704]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.837160][  T704]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.837164][  T704]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.837166][  T704]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.837170][  T704]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.837171][  T704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.837176][  T704]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.837178][  T704]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.837181][  T704]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.837184][  T704]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.837187][  T704]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.837194][  T704]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   26.837196][  T704]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   26.837201][  T704]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.837205][  T704]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.837207][  T704]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.837212][  T704]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.837216][  T704]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.837220][  T704]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.837222][  T704]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   26.837227][  T704]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   26.837230][  T704]  ____sys_sendmsg (net/socket.c:2713)
[   26.837232][  T704]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.837234][  T704]  ? sock_write_iter (net/socket.c:1269)
[   26.837236][  T704]  ? move_addr_to_kernel (net/socket.c:258)
[   26.837244][  T704]  ___sys_sendmsg (net/socket.c:2767)
[   26.837247][  T704]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.837263][  T704]  __sys_sendmsg (net/socket.c:2799)
[   26.837266][  T704]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.837273][  T704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.837276][  T704]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.837279][  T704]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.837282][  T704]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.837284][  T704] RIP: 0033:0x7f5a1da3e54e
[   26.837288][  T704] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   26.837290][  T704] RSP: 002b:00007ffc96282d60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.837292][  T704] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a1da3e54e
[   26.837294][  T704] RDX: 0000000000000000 RSI: 00007ffc96282e10 RDI: 0000000000000005
[   26.837295][  T704] RBP: 00007ffc96282d70 R08: 0000000000000000 R09: 0000000000000000
[   26.837296][  T704] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910469
[   26.837297][  T704] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc962834e0
| [   28.379221][  T790] softirqs last disabled at (15592): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   28.379223][  T790] Preemption disabled at:
| [   28.379224][  T790] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.379233][  T790] Tainted: [W]=WARN
[   28.379234][  T790] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.379236][  T790] Call Trace:
[   28.379237][  T790]  <TASK>
[   28.379239][  T790]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.379245][  T790]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.379247][  T790]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.379251][  T790]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.379256][  T790]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.379260][  T790]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   28.379262][  T790]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.379268][  T790]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.379271][  T790]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.379275][  T790]  put_chars (drivers/char/virtio_console.c:1176)
[   28.379277][  T790]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.379279][  T790]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.379282][  T790]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.379288][  T790]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.379295][  T790]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.379298][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379300][  T790]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.379304][  T790]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.379308][  T790]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.379309][  T790]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   28.379313][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379314][  T790]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.379318][  T790]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.379323][  T790]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.379325][  T790]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.379330][  T790]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.379333][  T790]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.379334][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379336][  T790]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   28.379340][  T790]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.379342][  T790]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.379344][  T790]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.379347][  T790]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.379349][  T790]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.379352][  T790]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   28.379356][  T790]  _printk (kernel/printk/printk.c:2504)
[   28.379359][  T790]  ? snapshot_read.cold (user.c:?)
[   28.379363][  T790]  ? br_multicast_flood (??:?)
[   28.379366][  T790]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   28.379368][  T790]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.379369][  T790]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.379373][  T790]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   28.379377][  T790]  br_init_port (net/bridge/br_stp_if.c:39)
[   28.379380][  T790]  new_nbp (net/bridge/br_if.c:449)
[   28.379384][  T790]  br_add_if (net/bridge/br_if.c:592)
[   28.379386][  T790]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   28.379389][  T790]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   28.379395][  T790]  do_set_master (net/core/rtnetlink.c:3071)
[   28.379398][  T790]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   28.379402][  T790]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.379405][  T790]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.379406][  T790]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.379409][  T790]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.379412][  T790]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.379414][  T790]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.379416][  T790]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.379418][  T790]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.379425][  T790]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.379426][  T790]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.379427][  T790]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.379430][  T790]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.379432][  T790]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   28.379434][  T790]  ? ___sys_sendmsg (net/socket.c:2758)
[   28.379438][  T790]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.379440][  T790]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.379443][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379445][  T790]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.379446][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379447][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379449][  T790]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.379451][  T790]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   28.379454][  T790]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.379456][  T790]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.379459][  T790]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.379460][  T790]  ? nla_get_range_signed (lib/nlattr.c:270)
[   28.379465][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379467][  T790]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.379473][  T790]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.379478][  T790]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.379480][  T790]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.379484][  T790]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.379486][  T790]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.379488][  T790]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.379490][  T790]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.379494][  T790]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.379496][  T790]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.379499][  T790]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.379500][  T790]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.379505][  T790]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.379506][  T790]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.379510][  T790]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.379513][  T790]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.379516][  T790]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.379522][  T790]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.379525][  T790]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.379529][  T790]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.379533][  T790]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.379535][  T790]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.379540][  T790]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.379543][  T790]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.379547][  T790]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.379549][  T790]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   28.379554][  T790]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   28.379557][  T790]  ____sys_sendmsg (net/socket.c:2713)
[   28.379559][  T790]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.379562][  T790]  ? sock_write_iter (net/socket.c:1269)
[   28.379563][  T790]  ? move_addr_to_kernel (net/socket.c:258)
[   28.379571][  T790]  ___sys_sendmsg (net/socket.c:2767)
[   28.379574][  T790]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.379591][  T790]  __sys_sendmsg (net/socket.c:2799)
[   28.379594][  T790]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.379600][  T790]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.379603][  T790]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.379606][  T790]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.379609][  T790]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.379611][  T790] RIP: 0033:0x7fe70a2be54e
[   28.379615][  T790] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.379617][  T790] RSP: 002b:00007fffd0468320 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.379619][  T790] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe70a2be54e
[   28.379621][  T790] RDX: 0000000000000000 RSI: 00007fffd04683d0 RDI: 0000000000000005
[   28.379622][  T790] RBP: 00007fffd0468330 R08: 0000000000000000 R09: 0000000000000000
[   28.379623][  T790] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91046a
[   28.379623][  T790] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd0468aa0
| [   29.929425][   T12] softirqs last disabled at (35944): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   29.929428][   T12] Preemption disabled at:
| [   29.929428][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.929437][   T12] Tainted: [W]=WARN
[   29.929438][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.929439][   T12] Workqueue: netns cleanup_net
[   29.929443][   T12] Call Trace:
[   29.929444][   T12]  <TASK>
[   29.929446][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.929452][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.929454][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.929458][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.929462][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.929467][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.929469][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.929476][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.929479][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.929482][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   29.929485][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.929488][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   29.929494][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.929498][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.929503][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.929506][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.929512][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.929516][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.929518][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.929522][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.929524][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.929528][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.929532][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.929534][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.929540][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.929543][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.929545][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.929546][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   29.929550][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.929552][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.929555][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.929558][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.929560][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   29.929561][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.929563][   T12]  ? kthread (kernel/kthread.c:436)
[   29.929566][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   29.929569][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   29.929574][   T12]  _printk (kernel/printk/printk.c:2504)
[   29.929578][   T12]  ? snapshot_read.cold (user.c:?)
[   29.929584][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.929588][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.929592][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.929595][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   29.929600][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.929602][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.929604][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.929606][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.929609][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.929613][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.929616][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   29.929623][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   29.929626][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   29.929630][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   29.929634][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.929638][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   29.929640][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.929643][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   29.929648][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   29.929651][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.929655][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.929657][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.929661][   T12]  process_one_work (kernel/workqueue.c:3387)
[   29.929668][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   29.929671][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.929679][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.929686][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.929689][   T12]  kthread (kernel/kthread.c:436)
[   29.929690][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.929694][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.929697][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.929700][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   29.929703][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.929707][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.929710][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.491097][  T924] softirqs last disabled at (28906): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   31.491099][  T924] Preemption disabled at:
| [   31.491100][  T924] vprintk_emit (kernel/printk/printk.c:2471)
| [   31.491110][  T924] Tainted: [W]=WARN
[   31.491110][  T924] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.491112][  T924] Call Trace:
[   31.491114][  T924]  <TASK>
[   31.491115][  T924]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.491121][  T924]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   31.491123][  T924]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.491128][  T924]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.491132][  T924]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.491137][  T924]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   31.491139][  T924]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.491145][  T924]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   31.491148][  T924]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.491152][  T924]  put_chars (drivers/char/virtio_console.c:1176)
[   31.491155][  T924]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.491161][  T924]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.491170][  T924]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.491173][  T924]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.491178][  T924]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.491182][  T924]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.491184][  T924]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   31.491187][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491190][  T924]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.491194][  T924]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.491199][  T924]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.491201][  T924]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.491206][  T924]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.491209][  T924]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.491211][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491213][  T924]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   31.491217][  T924]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.491218][  T924]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.491221][  T924]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.491225][  T924]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.491227][  T924]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.491229][  T924]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   31.491231][  T924]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   31.491235][  T924]  _printk (kernel/printk/printk.c:2504)
[   31.491238][  T924]  ? snapshot_read.cold (user.c:?)
[   31.491240][  T924]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.491243][  T924]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.491246][  T924]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.491248][  T924]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   31.491252][  T924]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   31.491254][  T924]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.491257][  T924]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   31.491260][  T924]  ? netdev_notice (net/core/dev.c:13194)
[   31.491262][  T924]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.491265][  T924]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.491268][  T924]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   31.491272][  T924]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.491274][  T924]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   31.491276][  T924]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   31.491282][  T924]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   31.491284][  T924]  ? __kernel_text_address (kernel/extable.c:79)
[   31.491287][  T924]  ? write_profile (profile.c:?)
[   31.491291][  T924]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   31.491297][  T924]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.491301][  T924]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   31.491303][  T924]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   31.491304][  T924]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   31.491306][  T924]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.491309][  T924]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.491311][  T924]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.491313][  T924]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.491316][  T924]  ? kasan_save_stack (mm/kasan/common.c:58)
[   31.491318][  T924]  ? kasan_save_stack (mm/kasan/common.c:57)
[   31.491319][  T924]  ? kasan_save_track (mm/kasan/common.c:78)
[   31.491320][  T924]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.491323][  T924]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.491325][  T924]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   31.491328][  T924]  ? ___sys_sendmsg (net/socket.c:2758)
[   31.491332][  T924]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.491334][  T924]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.491337][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491338][  T924]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.491340][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491341][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491343][  T924]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   31.491345][  T924]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   31.491348][  T924]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   31.491350][  T924]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.491353][  T924]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   31.491355][  T924]  ? nla_get_range_signed (lib/nlattr.c:270)
[   31.491360][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491362][  T924]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   31.491367][  T924]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   31.491373][  T924]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.491375][  T924]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.491380][  T924]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.491382][  T924]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.491384][  T924]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.491386][  T924]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.491390][  T924]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.491392][  T924]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   31.491395][  T924]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.491396][  T924]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.491401][  T924]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.491403][  T924]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.491407][  T924]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.491410][  T924]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.491413][  T924]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.491420][  T924]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   31.491422][  T924]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   31.491429][  T924]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.491433][  T924]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.491436][  T924]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.491440][  T924]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.491444][  T924]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   31.491448][  T924]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.491450][  T924]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   31.491455][  T924]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   31.491458][  T924]  ____sys_sendmsg (net/socket.c:2713)
[   31.491460][  T924]  ? copy_msghdr_from_user (net/socket.c:2650)
[   31.491463][  T924]  ? sock_write_iter (net/socket.c:1269)
[   31.491464][  T924]  ? move_addr_to_kernel (net/socket.c:258)
[   31.491472][  T924]  ___sys_sendmsg (net/socket.c:2767)
[   31.491475][  T924]  ? copy_msghdr_from_user (net/socket.c:2619)
[   31.491491][  T924]  __sys_sendmsg (net/socket.c:2799)
[   31.491494][  T924]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   31.491501][  T924]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.491504][  T924]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   31.491507][  T924]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   31.491510][  T924]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.491512][  T924] RIP: 0033:0x7f1a7e1a754e
[   31.491516][  T924] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   31.491518][  T924] RSP: 002b:00007ffc3cad82e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.491521][  T924] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1a7e1a754e
[   31.491522][  T924] RDX: 0000000000000000 RSI: 00007ffc3cad8390 RDI: 0000000000000005
[   31.491523][  T924] RBP: 00007ffc3cad82f0 R08: 0000000000000000 R09: 0000000000000000
[   31.491524][  T924] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91046d
[   31.491525][  T924] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3cad8a60
| [   43.651497][ T1218] softirqs last disabled at (17371): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   43.651499][ T1218] Preemption disabled at:
| [   43.651500][ T1218] vprintk_emit (kernel/printk/printk.c:2471)
| [   43.651509][ T1218] Tainted: [W]=WARN
[   43.651510][ T1218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.651512][ T1218] Call Trace:
[   43.651513][ T1218]  <TASK>
[   43.651515][ T1218]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   43.651521][ T1218]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   43.651523][ T1218]  __might_resched.cold (kernel/sched/core.c:9234)
[   43.651527][ T1218]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   43.651532][ T1218]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   43.651536][ T1218]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   43.651538][ T1218]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.651545][ T1218]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   43.651548][ T1218]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.651552][ T1218]  put_chars (drivers/char/virtio_console.c:1176)
[   43.651554][ T1218]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   43.651556][ T1218]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.651560][ T1218]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.651565][ T1218]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   43.651573][ T1218]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   43.651577][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651580][ T1218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.651584][ T1218]  console_emit_next_record (kernel/printk/printk.c:3183)
[   43.651589][ T1218]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   43.651590][ T1218]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   43.651594][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651596][ T1218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.651600][ T1218]  console_flush_one_record (kernel/printk/printk.c:3268)
[   43.651604][ T1218]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   43.651606][ T1218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.651612][ T1218]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   43.651615][ T1218]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   43.651617][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651619][ T1218]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   43.651623][ T1218]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   43.651625][ T1218]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   43.651628][ T1218]  vprintk_emit (kernel/printk/printk.c:2479)
[   43.651631][ T1218]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   43.651633][ T1218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.651636][ T1218]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   43.651640][ T1218]  _printk (kernel/printk/printk.c:2504)
[   43.651644][ T1218]  ? snapshot_read.cold (user.c:?)
[   43.651648][ T1218]  ? br_multicast_flood (??:?)
[   43.651651][ T1218]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.651653][ T1218]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.651654][ T1218]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.651658][ T1218]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   43.651663][ T1218]  br_init_port (net/bridge/br_stp_if.c:39)
[   43.651665][ T1218]  new_nbp (net/bridge/br_if.c:449)
[   43.651669][ T1218]  br_add_if (net/bridge/br_if.c:592)
[   43.651672][ T1218]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   43.651675][ T1218]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   43.651681][ T1218]  do_set_master (net/core/rtnetlink.c:3071)
[   43.651685][ T1218]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.651688][ T1218]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   43.651692][ T1218]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   43.651693][ T1218]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   43.651696][ T1218]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   43.651699][ T1218]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.651701][ T1218]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   43.651703][ T1218]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.651706][ T1218]  ? kasan_save_stack (mm/kasan/common.c:58)
[   43.651708][ T1218]  ? kasan_save_stack (mm/kasan/common.c:57)
[   43.651709][ T1218]  ? kasan_save_track (mm/kasan/common.c:78)
[   43.651711][ T1218]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   43.651713][ T1218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.651715][ T1218]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   43.651718][ T1218]  ? ___sys_sendmsg (net/socket.c:2758)
[   43.651722][ T1218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.651725][ T1218]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.651727][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651729][ T1218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.651731][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651732][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651734][ T1218]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   43.651736][ T1218]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   43.651739][ T1218]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   43.651741][ T1218]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.651744][ T1218]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   43.651746][ T1218]  ? nla_get_range_signed (lib/nlattr.c:270)
[   43.651751][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651753][ T1218]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   43.651759][ T1218]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.651764][ T1218]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.651766][ T1218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.651771][ T1218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.651773][ T1218]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.651776][ T1218]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.651777][ T1218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.651782][ T1218]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.651784][ T1218]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.651787][ T1218]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.651788][ T1218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.651793][ T1218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.651795][ T1218]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.651799][ T1218]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   43.651802][ T1218]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.651805][ T1218]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   43.651812][ T1218]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   43.651814][ T1218]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   43.651819][ T1218]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   43.651823][ T1218]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   43.651826][ T1218]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.651830][ T1218]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   43.651835][ T1218]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   43.651839][ T1218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.651840][ T1218]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   43.651846][ T1218]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   43.651849][ T1218]  ____sys_sendmsg (net/socket.c:2713)
[   43.651851][ T1218]  ? copy_msghdr_from_user (net/socket.c:2650)
[   43.651853][ T1218]  ? sock_write_iter (net/socket.c:1269)
[   43.651855][ T1218]  ? move_addr_to_kernel (net/socket.c:258)
[   43.651863][ T1218]  ___sys_sendmsg (net/socket.c:2767)
[   43.651866][ T1218]  ? copy_msghdr_from_user (net/socket.c:2619)
[   43.651883][ T1218]  __sys_sendmsg (net/socket.c:2799)
[   43.651886][ T1218]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   43.651893][ T1218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.651896][ T1218]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   43.651899][ T1218]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   43.651902][ T1218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.651904][ T1218] RIP: 0033:0x7f3068e1a54e
[   43.651908][ T1218] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   43.651910][ T1218] RSP: 002b:00007ffdff827140 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   43.651913][ T1218] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3068e1a54e
[   43.651914][ T1218] RDX: 0000000000000000 RSI: 00007ffdff8271f0 RDI: 0000000000000005
[   43.651915][ T1218] RBP: 00007ffdff827150 R08: 0000000000000000 R09: 0000000000000000
[   43.651916][ T1218] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910479
[   43.651917][ T1218] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdff8278c0
| [   45.141120][ T1308] softirqs last disabled at (21900): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   45.141122][ T1308] Preemption disabled at:
| [   45.141123][ T1308] vprintk_emit (kernel/printk/printk.c:2471)
| [   45.141132][ T1308] Tainted: [W]=WARN
[   45.141133][ T1308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.141134][ T1308] Call Trace:
[   45.141136][ T1308]  <TASK>
[   45.141138][ T1308]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   45.141144][ T1308]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   45.141145][ T1308]  __might_resched.cold (kernel/sched/core.c:9234)
[   45.141150][ T1308]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   45.141154][ T1308]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   45.141158][ T1308]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   45.141160][ T1308]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.141167][ T1308]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   45.141170][ T1308]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.141173][ T1308]  put_chars (drivers/char/virtio_console.c:1176)
[   45.141176][ T1308]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   45.141177][ T1308]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.141181][ T1308]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.141187][ T1308]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   45.141195][ T1308]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   45.141197][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141199][ T1308]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.141203][ T1308]  console_emit_next_record (kernel/printk/printk.c:3183)
[   45.141208][ T1308]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   45.141209][ T1308]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   45.141213][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141215][ T1308]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.141219][ T1308]  console_flush_one_record (kernel/printk/printk.c:3268)
[   45.141223][ T1308]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   45.141225][ T1308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.141230][ T1308]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   45.141233][ T1308]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   45.141235][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141237][ T1308]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   45.141241][ T1308]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   45.141243][ T1308]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   45.141245][ T1308]  vprintk_emit (kernel/printk/printk.c:2479)
[   45.141249][ T1308]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   45.141250][ T1308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.141253][ T1308]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   45.141257][ T1308]  _printk (kernel/printk/printk.c:2504)
[   45.141260][ T1308]  ? snapshot_read.cold (user.c:?)
[   45.141264][ T1308]  ? br_multicast_flood (??:?)
[   45.141267][ T1308]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.141269][ T1308]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.141270][ T1308]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.141274][ T1308]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   45.141279][ T1308]  br_init_port (net/bridge/br_stp_if.c:39)
[   45.141281][ T1308]  new_nbp (net/bridge/br_if.c:449)
[   45.141285][ T1308]  br_add_if (net/bridge/br_if.c:592)
[   45.141288][ T1308]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   45.141291][ T1308]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   45.141297][ T1308]  do_set_master (net/core/rtnetlink.c:3071)
[   45.141301][ T1308]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.141304][ T1308]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   45.141307][ T1308]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   45.141309][ T1308]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   45.141311][ T1308]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   45.141315][ T1308]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.141317][ T1308]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.141319][ T1308]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.141321][ T1308]  ? kasan_save_stack (mm/kasan/common.c:58)
[   45.141324][ T1308]  ? kasan_save_stack (mm/kasan/common.c:57)
[   45.141325][ T1308]  ? kasan_save_track (mm/kasan/common.c:78)
[   45.141326][ T1308]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   45.141328][ T1308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.141330][ T1308]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   45.141333][ T1308]  ? ___sys_sendmsg (net/socket.c:2758)
[   45.141337][ T1308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.141339][ T1308]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.141342][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141344][ T1308]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.141345][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141346][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141348][ T1308]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   45.141350][ T1308]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   45.141353][ T1308]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   45.141355][ T1308]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.141359][ T1308]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   45.141360][ T1308]  ? nla_get_range_signed (lib/nlattr.c:270)
[   45.141365][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141367][ T1308]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   45.141373][ T1308]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.141378][ T1308]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.141380][ T1308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.141385][ T1308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.141387][ T1308]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.141389][ T1308]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.141391][ T1308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.141395][ T1308]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.141397][ T1308]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.141400][ T1308]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.141401][ T1308]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.141406][ T1308]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.141408][ T1308]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.141411][ T1308]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   45.141415][ T1308]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.141418][ T1308]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   45.141427][ T1308]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   45.141429][ T1308]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   45.141433][ T1308]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   45.141438][ T1308]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   45.141440][ T1308]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.141444][ T1308]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   45.141448][ T1308]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   45.141452][ T1308]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.141454][ T1308]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   45.141459][ T1308]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   45.141462][ T1308]  ____sys_sendmsg (net/socket.c:2713)
[   45.141465][ T1308]  ? copy_msghdr_from_user (net/socket.c:2650)
[   45.141467][ T1308]  ? sock_write_iter (net/socket.c:1269)
[   45.141469][ T1308]  ? move_addr_to_kernel (net/socket.c:258)
[   45.141476][ T1308]  ___sys_sendmsg (net/socket.c:2767)
[   45.141479][ T1308]  ? copy_msghdr_from_user (net/socket.c:2619)
[   45.141495][ T1308]  __sys_sendmsg (net/socket.c:2799)
[   45.141498][ T1308]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   45.141504][ T1308]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.141507][ T1308]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   45.141510][ T1308]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   45.141513][ T1308]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   45.141516][ T1308] RIP: 0033:0x7fb7fe6a854e
[   45.141520][ T1308] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   45.141522][ T1308] RSP: 002b:00007ffee62c6ee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   45.141524][ T1308] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb7fe6a854e
[   45.141526][ T1308] RDX: 0000000000000000 RSI: 00007ffee62c6f90 RDI: 0000000000000005
[   45.141527][ T1308] RBP: 00007ffee62c6ef0 R08: 0000000000000000 R09: 0000000000000000
[   45.141527][ T1308] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91047b
[   45.141528][ T1308] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee62c7660
| [   46.645201][ T1377] softirqs last disabled at (32968): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   46.645203][ T1377] Preemption disabled at:
| [   46.645204][ T1377] vprintk_emit (kernel/printk/printk.c:2471)
| [   46.645213][ T1377] Tainted: [W]=WARN
[   46.645214][ T1377] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.645215][ T1377] Call Trace:
[   46.645217][ T1377]  <TASK>
[   46.645219][ T1377]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   46.645225][ T1377]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   46.645226][ T1377]  __might_resched.cold (kernel/sched/core.c:9234)
[   46.645231][ T1377]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   46.645235][ T1377]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   46.645239][ T1377]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   46.645241][ T1377]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.645247][ T1377]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   46.645250][ T1377]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.645253][ T1377]  put_chars (drivers/char/virtio_console.c:1176)
[   46.645256][ T1377]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   46.645257][ T1377]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   46.645260][ T1377]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   46.645266][ T1377]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   46.645274][ T1377]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   46.645276][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645278][ T1377]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.645282][ T1377]  console_emit_next_record (kernel/printk/printk.c:3183)
[   46.645286][ T1377]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   46.645288][ T1377]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   46.645291][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645293][ T1377]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.645297][ T1377]  console_flush_one_record (kernel/printk/printk.c:3268)
[   46.645301][ T1377]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   46.645303][ T1377]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.645308][ T1377]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   46.645311][ T1377]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   46.645313][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645315][ T1377]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   46.645318][ T1377]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   46.645320][ T1377]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   46.645323][ T1377]  vprintk_emit (kernel/printk/printk.c:2479)
[   46.645326][ T1377]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   46.645328][ T1377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.645330][ T1377]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   46.645334][ T1377]  _printk (kernel/printk/printk.c:2504)
[   46.645338][ T1377]  ? snapshot_read.cold (user.c:?)
[   46.645341][ T1377]  ? br_multicast_flood (??:?)
[   46.645344][ T1377]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   46.645346][ T1377]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   46.645347][ T1377]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   46.645351][ T1377]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   46.645355][ T1377]  br_init_port (net/bridge/br_stp_if.c:39)
[   46.645358][ T1377]  new_nbp (net/bridge/br_if.c:449)
[   46.645361][ T1377]  br_add_if (net/bridge/br_if.c:592)
[   46.645364][ T1377]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   46.645367][ T1377]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   46.645373][ T1377]  do_set_master (net/core/rtnetlink.c:3071)
[   46.645376][ T1377]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   46.645379][ T1377]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   46.645383][ T1377]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   46.645384][ T1377]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   46.645387][ T1377]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   46.645390][ T1377]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   46.645392][ T1377]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.645393][ T1377]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   46.645396][ T1377]  ? kasan_save_stack (mm/kasan/common.c:58)
[   46.645398][ T1377]  ? kasan_save_stack (mm/kasan/common.c:57)
[   46.645399][ T1377]  ? kasan_save_track (mm/kasan/common.c:78)
[   46.645400][ T1377]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   46.645403][ T1377]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.645404][ T1377]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   46.645407][ T1377]  ? ___sys_sendmsg (net/socket.c:2758)
[   46.645411][ T1377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.645413][ T1377]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   46.645416][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645417][ T1377]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.645419][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645420][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645422][ T1377]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   46.645427][ T1377]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   46.645429][ T1377]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   46.645431][ T1377]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   46.645435][ T1377]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   46.645436][ T1377]  ? nla_get_range_signed (lib/nlattr.c:270)
[   46.645441][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645443][ T1377]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   46.645448][ T1377]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   46.645453][ T1377]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   46.645455][ T1377]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.645460][ T1377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.645461][ T1377]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   46.645464][ T1377]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   46.645465][ T1377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.645469][ T1377]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   46.645471][ T1377]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   46.645474][ T1377]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   46.645475][ T1377]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.645480][ T1377]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.645482][ T1377]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   46.645485][ T1377]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   46.645488][ T1377]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   46.645491][ T1377]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   46.645497][ T1377]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   46.645499][ T1377]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   46.645504][ T1377]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   46.645507][ T1377]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   46.645510][ T1377]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   46.645514][ T1377]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   46.645518][ T1377]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   46.645522][ T1377]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.645523][ T1377]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   46.645528][ T1377]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   46.645531][ T1377]  ____sys_sendmsg (net/socket.c:2713)
[   46.645533][ T1377]  ? copy_msghdr_from_user (net/socket.c:2650)
[   46.645536][ T1377]  ? sock_write_iter (net/socket.c:1269)
[   46.645537][ T1377]  ? move_addr_to_kernel (net/socket.c:258)
[   46.645544][ T1377]  ___sys_sendmsg (net/socket.c:2767)
[   46.645547][ T1377]  ? copy_msghdr_from_user (net/socket.c:2619)
[   46.645563][ T1377]  __sys_sendmsg (net/socket.c:2799)
[   46.645565][ T1377]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   46.645571][ T1377]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.645575][ T1377]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   46.645578][ T1377]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   46.645581][ T1377]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.645583][ T1377] RIP: 0033:0x7f04a072254e
[   46.645587][ T1377] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   46.645589][ T1377] RSP: 002b:00007ffeb9805020 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   46.645591][ T1377] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f04a072254e
[   46.645593][ T1377] RDX: 0000000000000000 RSI: 00007ffeb98050d0 RDI: 0000000000000005
[   46.645594][ T1377] RBP: 00007ffeb9805030 R08: 0000000000000000 R09: 0000000000000000
[   46.645594][ T1377] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91047c
[   46.645595][ T1377] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb98057a0
| [   48.069006][ T1449] softirqs last disabled at (18594): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   48.069008][ T1449] Preemption disabled at:
| [   48.069009][ T1449] vprintk_emit (kernel/printk/printk.c:2471)
| [   48.069018][ T1449] Tainted: [W]=WARN
[   48.069019][ T1449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.069021][ T1449] Call Trace:
[   48.069023][ T1449]  <TASK>
[   48.069024][ T1449]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   48.069030][ T1449]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   48.069032][ T1449]  __might_resched.cold (kernel/sched/core.c:9234)
[   48.069037][ T1449]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   48.069041][ T1449]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   48.069045][ T1449]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   48.069047][ T1449]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.069054][ T1449]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   48.069057][ T1449]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.069061][ T1449]  put_chars (drivers/char/virtio_console.c:1176)
[   48.069063][ T1449]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   48.069064][ T1449]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.069068][ T1449]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.069073][ T1449]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   48.069081][ T1449]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   48.069084][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069086][ T1449]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.069090][ T1449]  console_emit_next_record (kernel/printk/printk.c:3183)
[   48.069094][ T1449]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   48.069096][ T1449]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   48.069100][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069101][ T1449]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.069105][ T1449]  console_flush_one_record (kernel/printk/printk.c:3268)
[   48.069110][ T1449]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   48.069112][ T1449]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.069117][ T1449]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   48.069120][ T1449]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   48.069122][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069124][ T1449]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   48.069127][ T1449]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   48.069129][ T1449]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   48.069132][ T1449]  vprintk_emit (kernel/printk/printk.c:2479)
[   48.069135][ T1449]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   48.069137][ T1449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.069140][ T1449]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   48.069143][ T1449]  _printk (kernel/printk/printk.c:2504)
[   48.069147][ T1449]  ? snapshot_read.cold (user.c:?)
[   48.069151][ T1449]  ? br_multicast_flood (??:?)
[   48.069154][ T1449]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   48.069156][ T1449]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.069157][ T1449]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.069161][ T1449]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   48.069166][ T1449]  br_init_port (net/bridge/br_stp_if.c:39)
[   48.069168][ T1449]  new_nbp (net/bridge/br_if.c:449)
[   48.069172][ T1449]  br_add_if (net/bridge/br_if.c:592)
[   48.069175][ T1449]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   48.069178][ T1449]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   48.069184][ T1449]  do_set_master (net/core/rtnetlink.c:3071)
[   48.069187][ T1449]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   48.069191][ T1449]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   48.069194][ T1449]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   48.069198][ T1449]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.069201][ T1449]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.069204][ T1449]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.069206][ T1449]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.069208][ T1449]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.069210][ T1449]  ? kasan_save_stack (mm/kasan/common.c:58)
[   48.069213][ T1449]  ? kasan_save_stack (mm/kasan/common.c:57)
[   48.069214][ T1449]  ? kasan_save_track (mm/kasan/common.c:78)
[   48.069215][ T1449]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   48.069218][ T1449]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.069220][ T1449]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   48.069223][ T1449]  ? ___sys_sendmsg (net/socket.c:2758)
[   48.069227][ T1449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.069229][ T1449]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.069231][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069233][ T1449]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.069235][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069236][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069238][ T1449]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   48.069240][ T1449]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   48.069242][ T1449]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   48.069244][ T1449]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.069248][ T1449]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   48.069249][ T1449]  ? nla_get_range_signed (lib/nlattr.c:270)
[   48.069254][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069256][ T1449]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   48.069261][ T1449]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.069267][ T1449]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.069269][ T1449]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.069273][ T1449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.069275][ T1449]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.069277][ T1449]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.069279][ T1449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.069283][ T1449]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.069285][ T1449]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.069288][ T1449]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.069289][ T1449]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.069294][ T1449]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.069296][ T1449]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.069299][ T1449]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   48.069303][ T1449]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.069305][ T1449]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.069312][ T1449]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.069314][ T1449]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.069319][ T1449]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.069323][ T1449]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.069325][ T1449]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.069329][ T1449]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   48.069333][ T1449]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   48.069337][ T1449]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.069339][ T1449]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   48.069345][ T1449]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   48.069347][ T1449]  ____sys_sendmsg (net/socket.c:2713)
[   48.069350][ T1449]  ? copy_msghdr_from_user (net/socket.c:2650)
[   48.069352][ T1449]  ? sock_write_iter (net/socket.c:1269)
[   48.069354][ T1449]  ? move_addr_to_kernel (net/socket.c:258)
[   48.069361][ T1449]  ___sys_sendmsg (net/socket.c:2767)
[   48.069364][ T1449]  ? copy_msghdr_from_user (net/socket.c:2619)
[   48.069380][ T1449]  __sys_sendmsg (net/socket.c:2799)
[   48.069383][ T1449]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   48.069389][ T1449]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.069392][ T1449]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   48.069395][ T1449]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   48.069398][ T1449]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.069400][ T1449] RIP: 0033:0x7fc3d6c8854e
[   48.069404][ T1449] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.069406][ T1449] RSP: 002b:00007ffc78fb85b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.069409][ T1449] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc3d6c8854e
[   48.069410][ T1449] RDX: 0000000000000000 RSI: 00007ffc78fb8660 RDI: 0000000000000005
[   48.069411][ T1449] RBP: 00007ffc78fb85c0 R08: 0000000000000000 R09: 0000000000000000
[   48.069412][ T1449] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91047e
[   48.069413][ T1449] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc78fb8d30
| [   49.616360][   T12] softirqs last disabled at (352560): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   49.616362][   T12] Preemption disabled at:
| [   49.616362][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.616372][   T12] Tainted: [W]=WARN
[   49.616372][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.616374][   T12] Workqueue: netns cleanup_net
[   49.616377][   T12] Call Trace:
[   49.616379][   T12]  <TASK>
[   49.616381][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.616387][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.616389][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.616393][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.616397][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   49.616402][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   49.616404][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.616411][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   49.616414][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.616417][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   49.616425][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.616426][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.616430][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.616433][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.616438][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.616442][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.616447][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.616451][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.616455][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.616459][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.616461][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   49.616465][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.616466][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.616470][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.616475][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.616477][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.616482][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.616485][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.616487][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.616489][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   49.616492][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.616494][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.616497][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.616500][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.616502][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   49.616504][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   49.616505][   T12]  ? kthread (kernel/kthread.c:436)
[   49.616508][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   49.616511][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   49.616515][   T12]  _printk (kernel/printk/printk.c:2504)
[   49.616519][   T12]  ? snapshot_read.cold (user.c:?)
[   49.616523][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   49.616527][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   49.616531][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   49.616534][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   49.616539][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.616541][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   49.616543][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   49.616545][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   49.616548][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   49.616552][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   49.616555][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   49.616561][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   49.616565][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   49.616568][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   49.616572][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   49.616576][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   49.616578][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.616581][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   49.616586][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   49.616589][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   49.616593][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.616595][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.616598][   T12]  process_one_work (kernel/workqueue.c:3387)
[   49.616605][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   49.616608][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.616616][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   49.616623][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   49.616625][   T12]  kthread (kernel/kthread.c:436)
[   49.616627][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   49.616631][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   49.616634][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   49.616636][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   49.616640][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   49.616644][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   49.616646][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.163989][ T1583] softirqs last disabled at (17440): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   51.163991][ T1583] Preemption disabled at:
| [   51.163992][ T1583] vprintk_emit (kernel/printk/printk.c:2471)
| [   51.164002][ T1583] Tainted: [W]=WARN
[   51.164003][ T1583] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.164004][ T1583] Call Trace:
[   51.164006][ T1583]  <TASK>
[   51.164008][ T1583]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   51.164014][ T1583]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   51.164015][ T1583]  __might_resched.cold (kernel/sched/core.c:9234)
[   51.164020][ T1583]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   51.164024][ T1583]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   51.164029][ T1583]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   51.164031][ T1583]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.164037][ T1583]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   51.164040][ T1583]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.164043][ T1583]  put_chars (drivers/char/virtio_console.c:1176)
[   51.164046][ T1583]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   51.164052][ T1583]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   51.164060][ T1583]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   51.164063][ T1583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.164067][ T1583]  console_emit_next_record (kernel/printk/printk.c:3183)
[   51.164071][ T1583]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   51.164073][ T1583]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   51.164076][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164079][ T1583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.164083][ T1583]  console_flush_one_record (kernel/printk/printk.c:3268)
[   51.164087][ T1583]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   51.164089][ T1583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.164094][ T1583]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   51.164097][ T1583]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   51.164099][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164101][ T1583]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   51.164104][ T1583]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   51.164106][ T1583]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   51.164109][ T1583]  vprintk_emit (kernel/printk/printk.c:2479)
[   51.164112][ T1583]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   51.164114][ T1583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.164116][ T1583]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   51.164118][ T1583]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   51.164121][ T1583]  _printk (kernel/printk/printk.c:2504)
[   51.164125][ T1583]  ? snapshot_read.cold (user.c:?)
[   51.164127][ T1583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.164129][ T1583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.164132][ T1583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.164134][ T1583]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   51.164138][ T1583]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   51.164140][ T1583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.164143][ T1583]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   51.164145][ T1583]  ? netdev_notice (net/core/dev.c:13194)
[   51.164148][ T1583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.164151][ T1583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.164154][ T1583]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   51.164157][ T1583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.164159][ T1583]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   51.164161][ T1583]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   51.164167][ T1583]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   51.164169][ T1583]  ? __kernel_text_address (kernel/extable.c:79)
[   51.164172][ T1583]  ? write_profile (profile.c:?)
[   51.164176][ T1583]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   51.164182][ T1583]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.164185][ T1583]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   51.164187][ T1583]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   51.164189][ T1583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   51.164190][ T1583]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.164194][ T1583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.164196][ T1583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.164197][ T1583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.164200][ T1583]  ? kasan_save_stack (mm/kasan/common.c:58)
[   51.164202][ T1583]  ? kasan_save_stack (mm/kasan/common.c:57)
[   51.164203][ T1583]  ? kasan_save_track (mm/kasan/common.c:78)
[   51.164204][ T1583]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.164207][ T1583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.164209][ T1583]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   51.164212][ T1583]  ? ___sys_sendmsg (net/socket.c:2758)
[   51.164215][ T1583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.164217][ T1583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.164220][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164222][ T1583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.164223][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164224][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164226][ T1583]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   51.164228][ T1583]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   51.164231][ T1583]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   51.164233][ T1583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.164236][ T1583]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   51.164238][ T1583]  ? nla_get_range_signed (lib/nlattr.c:270)
[   51.164242][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164245][ T1583]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   51.164250][ T1583]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   51.164255][ T1583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.164257][ T1583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.164262][ T1583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.164264][ T1583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.164265][ T1583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.164267][ T1583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.164271][ T1583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.164273][ T1583]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   51.164276][ T1583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.164278][ T1583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.164282][ T1583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.164284][ T1583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.164287][ T1583]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   51.164290][ T1583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.164293][ T1583]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   51.164300][ T1583]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   51.164302][ T1583]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   51.164306][ T1583]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.164310][ T1583]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   51.164313][ T1583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.164317][ T1583]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   51.164321][ T1583]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   51.164325][ T1583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.164326][ T1583]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   51.164332][ T1583]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   51.164334][ T1583]  ____sys_sendmsg (net/socket.c:2713)
[   51.164337][ T1583]  ? copy_msghdr_from_user (net/socket.c:2650)
[   51.164339][ T1583]  ? sock_write_iter (net/socket.c:1269)
[   51.164340][ T1583]  ? move_addr_to_kernel (net/socket.c:258)
[   51.164348][ T1583]  ___sys_sendmsg (net/socket.c:2767)
[   51.164351][ T1583]  ? copy_msghdr_from_user (net/socket.c:2619)
[   51.164366][ T1583]  __sys_sendmsg (net/socket.c:2799)
[   51.164369][ T1583]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   51.164375][ T1583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.164378][ T1583]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   51.164381][ T1583]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   51.164384][ T1583]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.164387][ T1583] RIP: 0033:0x7fed8530e54e
[   51.164391][ T1583] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   51.164392][ T1583] RSP: 002b:00007ffec1a2fda0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   51.164395][ T1583] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fed8530e54e
[   51.164397][ T1583] RDX: 0000000000000000 RSI: 00007ffec1a2fe50 RDI: 0000000000000005
[   51.164397][ T1583] RBP: 00007ffec1a2fdb0 R08: 0000000000000000 R09: 0000000000000000
[   51.164398][ T1583] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910481
[   51.164399][ T1583] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffec1a30520
| [   63.272328][ T1877] softirqs last disabled at (18042): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   63.272330][ T1877] Preemption disabled at:
| [   63.272331][ T1877] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.272341][ T1877] Tainted: [W]=WARN
[   63.272342][ T1877] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.272344][ T1877] Call Trace:
[   63.272346][ T1877]  <TASK>
[   63.272347][ T1877]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.272354][ T1877]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.272356][ T1877]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.272361][ T1877]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.272366][ T1877]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.272371][ T1877]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   63.272373][ T1877]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.272381][ T1877]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   63.272384][ T1877]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.272388][ T1877]  put_chars (drivers/char/virtio_console.c:1176)
[   63.272391][ T1877]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.272393][ T1877]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.272397][ T1877]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.272403][ T1877]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.272412][ T1877]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.272415][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272417][ T1877]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.272424][ T1877]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.272429][ T1877]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.272431][ T1877]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   63.272435][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272437][ T1877]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.272441][ T1877]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.272446][ T1877]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.272448][ T1877]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.272453][ T1877]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.272456][ T1877]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.272458][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272460][ T1877]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   63.272465][ T1877]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.272466][ T1877]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.272470][ T1877]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.272473][ T1877]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.272475][ T1877]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.272478][ T1877]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.272482][ T1877]  _printk (kernel/printk/printk.c:2504)
[   63.272486][ T1877]  ? snapshot_read.cold (user.c:?)
[   63.272490][ T1877]  ? br_multicast_flood (??:?)
[   63.272493][ T1877]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.272495][ T1877]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.272496][ T1877]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.272501][ T1877]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   63.272506][ T1877]  br_init_port (net/bridge/br_stp_if.c:39)
[   63.272508][ T1877]  new_nbp (net/bridge/br_if.c:449)
[   63.272513][ T1877]  br_add_if (net/bridge/br_if.c:592)
[   63.272515][ T1877]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   63.272520][ T1877]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   63.272526][ T1877]  do_set_master (net/core/rtnetlink.c:3071)
[   63.272530][ T1877]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.272534][ T1877]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.272538][ T1877]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.272540][ T1877]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.272543][ T1877]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.272546][ T1877]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.272549][ T1877]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.272551][ T1877]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.272554][ T1877]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.272556][ T1877]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.272558][ T1877]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.272559][ T1877]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.272562][ T1877]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.272564][ T1877]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.272567][ T1877]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.272572][ T1877]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.272575][ T1877]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.272580][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272583][ T1877]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.272585][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272586][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272588][ T1877]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.272591][ T1877]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   63.272594][ T1877]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.272596][ T1877]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.272600][ T1877]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.272602][ T1877]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.272607][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272610][ T1877]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.272616][ T1877]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.272623][ T1877]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.272625][ T1877]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.272631][ T1877]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.272633][ T1877]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.272636][ T1877]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.272638][ T1877]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.272643][ T1877]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.272645][ T1877]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.272649][ T1877]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.272650][ T1877]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.272656][ T1877]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.272658][ T1877]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.272662][ T1877]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.272666][ T1877]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.272669][ T1877]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.272677][ T1877]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   63.272679][ T1877]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   63.272685][ T1877]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.272689][ T1877]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.272692][ T1877]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.272697][ T1877]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.272702][ T1877]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.272706][ T1877]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.272708][ T1877]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.272713][ T1877]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.272717][ T1877]  ____sys_sendmsg (net/socket.c:2713)
[   63.272719][ T1877]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.272722][ T1877]  ? sock_write_iter (net/socket.c:1269)
[   63.272723][ T1877]  ? move_addr_to_kernel (net/socket.c:258)
[   63.272732][ T1877]  ___sys_sendmsg (net/socket.c:2767)
[   63.272735][ T1877]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.272753][ T1877]  __sys_sendmsg (net/socket.c:2799)
[   63.272756][ T1877]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.272763][ T1877]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.272766][ T1877]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.272770][ T1877]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.272773][ T1877]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.272775][ T1877] RIP: 0033:0x7f0c6dfb254e
[   63.272779][ T1877] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   63.272781][ T1877] RSP: 002b:00007ffe6479edb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.272783][ T1877] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0c6dfb254e
[   63.272785][ T1877] RDX: 0000000000000000 RSI: 00007ffe6479ee60 RDI: 0000000000000005
[   63.272786][ T1877] RBP: 00007ffe6479edc0 R08: 0000000000000000 R09: 0000000000000000
[   63.272787][ T1877] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91048d
[   63.272788][ T1877] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6479f530
| [   64.732022][ T1963] softirqs last disabled at (23910): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   64.732024][ T1963] Preemption disabled at:
| [   64.732025][ T1963] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.732034][ T1963] Tainted: [W]=WARN
[   64.732035][ T1963] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.732036][ T1963] Call Trace:
[   64.732038][ T1963]  <TASK>
[   64.732039][ T1963]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.732046][ T1963]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.732047][ T1963]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.732052][ T1963]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.732056][ T1963]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.732061][ T1963]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   64.732063][ T1963]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.732070][ T1963]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   64.732072][ T1963]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.732076][ T1963]  put_chars (drivers/char/virtio_console.c:1176)
[   64.732079][ T1963]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.732080][ T1963]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.732084][ T1963]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.732090][ T1963]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.732098][ T1963]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.732100][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732102][ T1963]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.732107][ T1963]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.732111][ T1963]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.732113][ T1963]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   64.732116][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732118][ T1963]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.732122][ T1963]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.732126][ T1963]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.732128][ T1963]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.732134][ T1963]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.732137][ T1963]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.732138][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732140][ T1963]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   64.732144][ T1963]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.732146][ T1963]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.732149][ T1963]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.732152][ T1963]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.732154][ T1963]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.732156][ T1963]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.732160][ T1963]  _printk (kernel/printk/printk.c:2504)
[   64.732164][ T1963]  ? snapshot_read.cold (user.c:?)
[   64.732167][ T1963]  ? br_multicast_flood (??:?)
[   64.732171][ T1963]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   64.732172][ T1963]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.732174][ T1963]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.732178][ T1963]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   64.732182][ T1963]  br_init_port (net/bridge/br_stp_if.c:39)
[   64.732185][ T1963]  new_nbp (net/bridge/br_if.c:449)
[   64.732189][ T1963]  br_add_if (net/bridge/br_if.c:592)
[   64.732191][ T1963]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   64.732195][ T1963]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   64.732200][ T1963]  do_set_master (net/core/rtnetlink.c:3071)
[   64.732204][ T1963]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   64.732207][ T1963]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.732211][ T1963]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.732212][ T1963]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.732215][ T1963]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.732219][ T1963]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.732221][ T1963]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.732223][ T1963]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.732225][ T1963]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.732228][ T1963]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.732229][ T1963]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.732230][ T1963]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.732233][ T1963]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.732235][ T1963]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.732238][ T1963]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.732242][ T1963]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.732244][ T1963]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.732246][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732248][ T1963]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.732250][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732251][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732252][ T1963]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.732255][ T1963]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   64.732258][ T1963]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.732260][ T1963]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.732263][ T1963]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.732264][ T1963]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.732269][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732272][ T1963]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.732277][ T1963]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.732283][ T1963]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.732285][ T1963]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.732289][ T1963]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.732291][ T1963]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.732294][ T1963]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.732296][ T1963]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.732300][ T1963]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.732302][ T1963]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.732305][ T1963]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.732306][ T1963]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.732311][ T1963]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.732313][ T1963]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.732316][ T1963]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.732320][ T1963]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.732323][ T1963]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.732329][ T1963]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   64.732331][ T1963]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   64.732336][ T1963]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.732340][ T1963]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.732343][ T1963]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.732347][ T1963]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.732351][ T1963]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.732355][ T1963]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.732357][ T1963]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.732363][ T1963]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.732366][ T1963]  ____sys_sendmsg (net/socket.c:2713)
[   64.732368][ T1963]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.732370][ T1963]  ? sock_write_iter (net/socket.c:1269)
[   64.732372][ T1963]  ? move_addr_to_kernel (net/socket.c:258)
[   64.732379][ T1963]  ___sys_sendmsg (net/socket.c:2767)
[   64.732382][ T1963]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.732399][ T1963]  __sys_sendmsg (net/socket.c:2799)
[   64.732402][ T1963]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.732408][ T1963]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.732411][ T1963]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.732414][ T1963]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.732418][ T1963]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.732420][ T1963] RIP: 0033:0x7f8bd447e54e
[   64.732425][ T1963] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   64.732427][ T1963] RSP: 002b:00007fffd8f9f9b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.732430][ T1963] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8bd447e54e
[   64.732431][ T1963] RDX: 0000000000000000 RSI: 00007fffd8f9fa60 RDI: 0000000000000005
[   64.732432][ T1963] RBP: 00007fffd8f9f9c0 R08: 0000000000000000 R09: 0000000000000000
[   64.732433][ T1963] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91048f
[   64.732434][ T1963] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd8fa0130
| [   66.202494][ T2034] softirqs last disabled at (17002): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   66.202497][ T2034] Preemption disabled at:
| [   66.202497][ T2034] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.202506][ T2034] Tainted: [W]=WARN
[   66.202507][ T2034] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.202509][ T2034] Call Trace:
[   66.202510][ T2034]  <TASK>
[   66.202512][ T2034]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.202518][ T2034]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.202519][ T2034]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.202523][ T2034]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.202528][ T2034]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.202532][ T2034]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.202534][ T2034]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.202540][ T2034]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.202543][ T2034]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.202547][ T2034]  put_chars (drivers/char/virtio_console.c:1176)
[   66.202549][ T2034]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.202550][ T2034]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.202554][ T2034]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.202559][ T2034]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.202567][ T2034]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.202570][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202572][ T2034]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.202577][ T2034]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.202581][ T2034]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.202583][ T2034]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   66.202586][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202588][ T2034]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.202592][ T2034]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.202596][ T2034]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.202598][ T2034]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.202604][ T2034]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.202607][ T2034]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.202609][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202610][ T2034]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   66.202614][ T2034]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.202616][ T2034]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.202619][ T2034]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.202622][ T2034]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.202624][ T2034]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.202626][ T2034]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.202630][ T2034]  _printk (kernel/printk/printk.c:2504)
[   66.202633][ T2034]  ? snapshot_read.cold (user.c:?)
[   66.202637][ T2034]  ? br_multicast_flood (??:?)
[   66.202640][ T2034]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   66.202642][ T2034]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.202643][ T2034]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.202647][ T2034]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   66.202651][ T2034]  br_init_port (net/bridge/br_stp_if.c:39)
[   66.202654][ T2034]  new_nbp (net/bridge/br_if.c:449)
[   66.202658][ T2034]  br_add_if (net/bridge/br_if.c:592)
[   66.202660][ T2034]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   66.202664][ T2034]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   66.202669][ T2034]  do_set_master (net/core/rtnetlink.c:3071)
[   66.202673][ T2034]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   66.202676][ T2034]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.202679][ T2034]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.202680][ T2034]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.202683][ T2034]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.202686][ T2034]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.202688][ T2034]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.202690][ T2034]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.202692][ T2034]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.202695][ T2034]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.202696][ T2034]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.202697][ T2034]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.202700][ T2034]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.202702][ T2034]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.202705][ T2034]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.202708][ T2034]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.202710][ T2034]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.202713][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202715][ T2034]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.202716][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202718][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202719][ T2034]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.202721][ T2034]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   66.202724][ T2034]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.202726][ T2034]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.202729][ T2034]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.202730][ T2034]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.202735][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202738][ T2034]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.202743][ T2034]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.202748][ T2034]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.202750][ T2034]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.202755][ T2034]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.202757][ T2034]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.202759][ T2034]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.202761][ T2034]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.202765][ T2034]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.202767][ T2034]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.202770][ T2034]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.202771][ T2034]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.202776][ T2034]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.202778][ T2034]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.202781][ T2034]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.202785][ T2034]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.202788][ T2034]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.202794][ T2034]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   66.202797][ T2034]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   66.202801][ T2034]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.202805][ T2034]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.202808][ T2034]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.202812][ T2034]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.202816][ T2034]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.202820][ T2034]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.202822][ T2034]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.202827][ T2034]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.202830][ T2034]  ____sys_sendmsg (net/socket.c:2713)
[   66.202832][ T2034]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.202834][ T2034]  ? sock_write_iter (net/socket.c:1269)
[   66.202836][ T2034]  ? move_addr_to_kernel (net/socket.c:258)
[   66.202843][ T2034]  ___sys_sendmsg (net/socket.c:2767)
[   66.202846][ T2034]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.202863][ T2034]  __sys_sendmsg (net/socket.c:2799)
[   66.202866][ T2034]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.202872][ T2034]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.202875][ T2034]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.202878][ T2034]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.202881][ T2034]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.202883][ T2034] RIP: 0033:0x7fd63ed2454e
[   66.202887][ T2034] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   66.202889][ T2034] RSP: 002b:00007ffcbfb62a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.202891][ T2034] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd63ed2454e
[   66.202893][ T2034] RDX: 0000000000000000 RSI: 00007ffcbfb62b10 RDI: 0000000000000005
[   66.202894][ T2034] RBP: 00007ffcbfb62a70 R08: 0000000000000000 R09: 0000000000000000
[   66.202894][ T2034] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910490
[   66.202895][ T2034] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcbfb631e0
| [   67.693083][ T2109] softirqs last disabled at (22838): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   67.693085][ T2109] Preemption disabled at:
| [   67.693086][ T2109] vprintk_emit (kernel/printk/printk.c:2471)
| [   67.693095][ T2109] Tainted: [W]=WARN
[   67.693096][ T2109] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.693098][ T2109] Call Trace:
[   67.693099][ T2109]  <TASK>
[   67.693101][ T2109]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.693107][ T2109]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   67.693109][ T2109]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.693113][ T2109]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.693118][ T2109]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   67.693122][ T2109]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   67.693124][ T2109]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.693131][ T2109]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   67.693133][ T2109]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.693137][ T2109]  put_chars (drivers/char/virtio_console.c:1176)
[   67.693139][ T2109]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.693141][ T2109]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.693144][ T2109]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.693150][ T2109]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.693157][ T2109]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.693160][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693162][ T2109]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.693166][ T2109]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.693170][ T2109]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.693172][ T2109]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   67.693176][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693177][ T2109]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.693181][ T2109]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.693186][ T2109]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.693188][ T2109]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.693193][ T2109]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.693196][ T2109]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.693198][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693200][ T2109]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   67.693204][ T2109]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.693205][ T2109]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.693208][ T2109]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.693211][ T2109]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.693213][ T2109]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.693216][ T2109]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   67.693220][ T2109]  _printk (kernel/printk/printk.c:2504)
[   67.693224][ T2109]  ? snapshot_read.cold (user.c:?)
[   67.693227][ T2109]  ? br_multicast_flood (??:?)
[   67.693231][ T2109]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   67.693232][ T2109]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.693233][ T2109]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.693238][ T2109]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   67.693242][ T2109]  br_init_port (net/bridge/br_stp_if.c:39)
[   67.693244][ T2109]  new_nbp (net/bridge/br_if.c:449)
[   67.693248][ T2109]  br_add_if (net/bridge/br_if.c:592)
[   67.693251][ T2109]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   67.693254][ T2109]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   67.693260][ T2109]  do_set_master (net/core/rtnetlink.c:3071)
[   67.693263][ T2109]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   67.693267][ T2109]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   67.693270][ T2109]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   67.693271][ T2109]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   67.693274][ T2109]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.693278][ T2109]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.693280][ T2109]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.693281][ T2109]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.693284][ T2109]  ? kasan_save_stack (mm/kasan/common.c:58)
[   67.693286][ T2109]  ? kasan_save_stack (mm/kasan/common.c:57)
[   67.693288][ T2109]  ? kasan_save_track (mm/kasan/common.c:78)
[   67.693289][ T2109]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   67.693291][ T2109]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.693293][ T2109]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   67.693296][ T2109]  ? ___sys_sendmsg (net/socket.c:2758)
[   67.693300][ T2109]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.693302][ T2109]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.693305][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693306][ T2109]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.693308][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693309][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693311][ T2109]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   67.693313][ T2109]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   67.693316][ T2109]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   67.693318][ T2109]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.693321][ T2109]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   67.693322][ T2109]  ? nla_get_range_signed (lib/nlattr.c:270)
[   67.693327][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693330][ T2109]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   67.693335][ T2109]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.693341][ T2109]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.693343][ T2109]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.693347][ T2109]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.693349][ T2109]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.693352][ T2109]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.693354][ T2109]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.693357][ T2109]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.693360][ T2109]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.693363][ T2109]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.693364][ T2109]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.693369][ T2109]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.693371][ T2109]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.693374][ T2109]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   67.693378][ T2109]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.693381][ T2109]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.693387][ T2109]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   67.693389][ T2109]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   67.693394][ T2109]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.693398][ T2109]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.693401][ T2109]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.693405][ T2109]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   67.693409][ T2109]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   67.693413][ T2109]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.693415][ T2109]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   67.693420][ T2109]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   67.693426][ T2109]  ____sys_sendmsg (net/socket.c:2713)
[   67.693429][ T2109]  ? copy_msghdr_from_user (net/socket.c:2650)
[   67.693431][ T2109]  ? sock_write_iter (net/socket.c:1269)
[   67.693433][ T2109]  ? move_addr_to_kernel (net/socket.c:258)
[   67.693440][ T2109]  ___sys_sendmsg (net/socket.c:2767)
[   67.693443][ T2109]  ? copy_msghdr_from_user (net/socket.c:2619)
[   67.693459][ T2109]  __sys_sendmsg (net/socket.c:2799)
[   67.693462][ T2109]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   67.693468][ T2109]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.693471][ T2109]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   67.693474][ T2109]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   67.693477][ T2109]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.693479][ T2109] RIP: 0033:0x7f94f469b54e
[   67.693483][ T2109] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   67.693485][ T2109] RSP: 002b:00007ffc2971ecc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.693488][ T2109] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f94f469b54e
[   67.693489][ T2109] RDX: 0000000000000000 RSI: 00007ffc2971ed70 RDI: 0000000000000005
[   67.693490][ T2109] RBP: 00007ffc2971ecd0 R08: 0000000000000000 R09: 0000000000000000
[   67.693491][ T2109] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910491
[   67.693492][ T2109] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2971f440
| [   69.157461][   T12] softirqs last disabled at (687540): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   69.157463][   T12] Preemption disabled at:
| [   69.157464][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   69.157473][   T12] Tainted: [W]=WARN
[   69.157474][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   69.157476][   T12] Workqueue: netns cleanup_net
[   69.157479][   T12] Call Trace:
[   69.157481][   T12]  <TASK>
[   69.157483][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   69.157489][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   69.157490][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   69.157495][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   69.157499][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   69.157503][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   69.157505][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.157512][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   69.157514][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.157518][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   69.157521][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   69.157522][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.157525][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.157528][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.157533][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   69.157537][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.157543][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   69.157546][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.157550][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   69.157555][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   69.157556][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   69.157560][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.157561][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.157565][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   69.157570][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   69.157572][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.157579][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   69.157582][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   69.157584][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.157585][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   69.157589][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   69.157591][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   69.157594][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   69.157597][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   69.157598][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   69.157600][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   69.157602][   T12]  ? kthread (kernel/kthread.c:436)
[   69.157604][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   69.157607][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   69.157612][   T12]  _printk (kernel/printk/printk.c:2504)
[   69.157615][   T12]  ? snapshot_read.cold (user.c:?)
[   69.157620][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   69.157624][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   69.157628][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   69.157630][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   69.157635][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.157637][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   69.157639][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   69.157641][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   69.157644][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   69.157648][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   69.157652][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   69.157658][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   69.157661][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   69.157665][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   69.157668][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   69.157672][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   69.157674][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.157677][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   69.157682][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   69.157685][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   69.157688][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.157690][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.157694][   T12]  process_one_work (kernel/workqueue.c:3387)
[   69.157700][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   69.157703][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.157711][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   69.157718][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   69.157720][   T12]  kthread (kernel/kthread.c:436)
[   69.157722][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   69.157726][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   69.157729][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   69.157731][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   69.157735][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   69.157738][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   69.157741][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.751839][ T2240] softirqs last disabled at (14984): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   70.751842][ T2240] Preemption disabled at:
| [   70.751843][ T2240] vprintk_emit (kernel/printk/printk.c:2471)
| [   70.751852][ T2240] Tainted: [W]=WARN
[   70.751853][ T2240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.751854][ T2240] Call Trace:
[   70.751856][ T2240]  <TASK>
[   70.751857][ T2240]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   70.751864][ T2240]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   70.751865][ T2240]  __might_resched.cold (kernel/sched/core.c:9234)
[   70.751870][ T2240]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   70.751874][ T2240]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   70.751878][ T2240]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   70.751880][ T2240]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   70.751887][ T2240]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   70.751890][ T2240]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   70.751893][ T2240]  put_chars (drivers/char/virtio_console.c:1176)
[   70.751896][ T2240]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   70.751903][ T2240]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   70.751910][ T2240]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   70.751914][ T2240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   70.751918][ T2240]  console_emit_next_record (kernel/printk/printk.c:3183)
[   70.751922][ T2240]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   70.751924][ T2240]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   70.751927][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.751930][ T2240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   70.751934][ T2240]  console_flush_one_record (kernel/printk/printk.c:3268)
[   70.751938][ T2240]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   70.751940][ T2240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.751946][ T2240]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   70.751953][ T2240]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   70.751955][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.751957][ T2240]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   70.751961][ T2240]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   70.751963][ T2240]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   70.751965][ T2240]  vprintk_emit (kernel/printk/printk.c:2479)
[   70.751968][ T2240]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   70.751970][ T2240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.751972][ T2240]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   70.751974][ T2240]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   70.751978][ T2240]  _printk (kernel/printk/printk.c:2504)
[   70.751981][ T2240]  ? snapshot_read.cold (user.c:?)
[   70.751983][ T2240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   70.751986][ T2240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   70.751989][ T2240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   70.751991][ T2240]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   70.751995][ T2240]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   70.751997][ T2240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   70.752000][ T2240]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   70.752002][ T2240]  ? netdev_notice (net/core/dev.c:13194)
[   70.752005][ T2240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.752008][ T2240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   70.752011][ T2240]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   70.752014][ T2240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   70.752016][ T2240]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   70.752019][ T2240]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   70.752024][ T2240]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   70.752026][ T2240]  ? __kernel_text_address (kernel/extable.c:79)
[   70.752029][ T2240]  ? write_profile (profile.c:?)
[   70.752033][ T2240]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   70.752039][ T2240]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   70.752042][ T2240]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   70.752044][ T2240]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   70.752046][ T2240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   70.752048][ T2240]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   70.752051][ T2240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   70.752053][ T2240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   70.752055][ T2240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   70.752057][ T2240]  ? kasan_save_stack (mm/kasan/common.c:58)
[   70.752059][ T2240]  ? kasan_save_stack (mm/kasan/common.c:57)
[   70.752060][ T2240]  ? kasan_save_track (mm/kasan/common.c:78)
[   70.752061][ T2240]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   70.752064][ T2240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.752066][ T2240]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   70.752069][ T2240]  ? ___sys_sendmsg (net/socket.c:2758)
[   70.752072][ T2240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   70.752075][ T2240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   70.752077][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.752079][ T2240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   70.752081][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.752082][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.752084][ T2240]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   70.752086][ T2240]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   70.752088][ T2240]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   70.752090][ T2240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   70.752094][ T2240]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   70.752095][ T2240]  ? nla_get_range_signed (lib/nlattr.c:270)
[   70.752100][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.752102][ T2240]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   70.752107][ T2240]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   70.752113][ T2240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   70.752115][ T2240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.752119][ T2240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   70.752121][ T2240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.752123][ T2240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   70.752125][ T2240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   70.752129][ T2240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   70.752131][ T2240]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   70.752134][ T2240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   70.752135][ T2240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.752140][ T2240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   70.752142][ T2240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.752145][ T2240]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   70.752148][ T2240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   70.752151][ T2240]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   70.752158][ T2240]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   70.752160][ T2240]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   70.752165][ T2240]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   70.752168][ T2240]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   70.752171][ T2240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.752175][ T2240]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   70.752179][ T2240]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   70.752183][ T2240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   70.752185][ T2240]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   70.752190][ T2240]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   70.752193][ T2240]  ____sys_sendmsg (net/socket.c:2713)
[   70.752195][ T2240]  ? copy_msghdr_from_user (net/socket.c:2650)
[   70.752198][ T2240]  ? sock_write_iter (net/socket.c:1269)
[   70.752199][ T2240]  ? move_addr_to_kernel (net/socket.c:258)
[   70.752207][ T2240]  ___sys_sendmsg (net/socket.c:2767)
[   70.752209][ T2240]  ? copy_msghdr_from_user (net/socket.c:2619)
[   70.752225][ T2240]  __sys_sendmsg (net/socket.c:2799)
[   70.752228][ T2240]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   70.752234][ T2240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.752237][ T2240]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   70.752240][ T2240]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   70.752243][ T2240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   70.752245][ T2240] RIP: 0033:0x7f10361b854e
[   70.752249][ T2240] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   70.752251][ T2240] RSP: 002b:00007ffe842fdff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   70.752253][ T2240] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f10361b854e
[   70.752255][ T2240] RDX: 0000000000000000 RSI: 00007ffe842fe0a0 RDI: 0000000000000005
[   70.752256][ T2240] RBP: 00007ffe842fe000 R08: 0000000000000000 R09: 0000000000000000
[   70.752256][ T2240] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910495
[   70.752260][ T2240] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe842fe770
| [   83.010368][ T2539] softirqs last disabled at (18464): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   83.010371][ T2539] Preemption disabled at:
| [   83.010371][ T2539] vprintk_emit (kernel/printk/printk.c:2471)
| [   83.010381][ T2539] Tainted: [W]=WARN
[   83.010382][ T2539] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   83.010383][ T2539] Call Trace:
[   83.010385][ T2539]  <TASK>
[   83.010387][ T2539]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   83.010393][ T2539]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   83.010395][ T2539]  __might_resched.cold (kernel/sched/core.c:9234)
[   83.010399][ T2539]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   83.010403][ T2539]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   83.010408][ T2539]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   83.010410][ T2539]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.010417][ T2539]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   83.010419][ T2539]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.010426][ T2539]  put_chars (drivers/char/virtio_console.c:1176)
[   83.010429][ T2539]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   83.010430][ T2539]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.010434][ T2539]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.010439][ T2539]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   83.010447][ T2539]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   83.010450][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010452][ T2539]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.010456][ T2539]  console_emit_next_record (kernel/printk/printk.c:3183)
[   83.010460][ T2539]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   83.010462][ T2539]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   83.010466][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010467][ T2539]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.010472][ T2539]  console_flush_one_record (kernel/printk/printk.c:3268)
[   83.010476][ T2539]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   83.010478][ T2539]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.010484][ T2539]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   83.010487][ T2539]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   83.010489][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010491][ T2539]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   83.010495][ T2539]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   83.010497][ T2539]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   83.010499][ T2539]  vprintk_emit (kernel/printk/printk.c:2479)
[   83.010503][ T2539]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   83.010505][ T2539]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.010508][ T2539]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   83.010512][ T2539]  _printk (kernel/printk/printk.c:2504)
[   83.010515][ T2539]  ? snapshot_read.cold (user.c:?)
[   83.010519][ T2539]  ? br_multicast_flood (??:?)
[   83.010523][ T2539]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   83.010524][ T2539]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.010525][ T2539]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.010530][ T2539]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   83.010534][ T2539]  br_init_port (net/bridge/br_stp_if.c:39)
[   83.010537][ T2539]  new_nbp (net/bridge/br_if.c:449)
[   83.010540][ T2539]  br_add_if (net/bridge/br_if.c:592)
[   83.010543][ T2539]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   83.010546][ T2539]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   83.010552][ T2539]  do_set_master (net/core/rtnetlink.c:3071)
[   83.010556][ T2539]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   83.010559][ T2539]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   83.010563][ T2539]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   83.010564][ T2539]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   83.010566][ T2539]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   83.010570][ T2539]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.010572][ T2539]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.010574][ T2539]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.010578][ T2539]  ? kasan_save_stack (mm/kasan/common.c:58)
[   83.010581][ T2539]  ? kasan_save_stack (mm/kasan/common.c:57)
[   83.010582][ T2539]  ? kasan_save_track (mm/kasan/common.c:78)
[   83.010583][ T2539]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   83.010586][ T2539]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.010588][ T2539]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   83.010591][ T2539]  ? ___sys_sendmsg (net/socket.c:2758)
[   83.010595][ T2539]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.010597][ T2539]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.010600][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010602][ T2539]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.010603][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010604][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010606][ T2539]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   83.010608][ T2539]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   83.010611][ T2539]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   83.010613][ T2539]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.010616][ T2539]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   83.010618][ T2539]  ? nla_get_range_signed (lib/nlattr.c:270)
[   83.010623][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010625][ T2539]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   83.010630][ T2539]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.010636][ T2539]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.010638][ T2539]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.010642][ T2539]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.010644][ T2539]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.010647][ T2539]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.010648][ T2539]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.010653][ T2539]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.010655][ T2539]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.010658][ T2539]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.010659][ T2539]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.010664][ T2539]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.010666][ T2539]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.010669][ T2539]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   83.010672][ T2539]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.010675][ T2539]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   83.010682][ T2539]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   83.010684][ T2539]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   83.010688][ T2539]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   83.010692][ T2539]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   83.010695][ T2539]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.010699][ T2539]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   83.010703][ T2539]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   83.010707][ T2539]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.010709][ T2539]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   83.010714][ T2539]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   83.010717][ T2539]  ____sys_sendmsg (net/socket.c:2713)
[   83.010719][ T2539]  ? copy_msghdr_from_user (net/socket.c:2650)
[   83.010722][ T2539]  ? sock_write_iter (net/socket.c:1269)
[   83.010723][ T2539]  ? move_addr_to_kernel (net/socket.c:258)
[   83.010731][ T2539]  ___sys_sendmsg (net/socket.c:2767)
[   83.010734][ T2539]  ? copy_msghdr_from_user (net/socket.c:2619)
[   83.010750][ T2539]  __sys_sendmsg (net/socket.c:2799)
[   83.010753][ T2539]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   83.010759][ T2539]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.010762][ T2539]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   83.010765][ T2539]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   83.010768][ T2539]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   83.010770][ T2539] RIP: 0033:0x7fa14293f54e
[   83.010774][ T2539] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   83.010776][ T2539] RSP: 002b:00007ffd66336060 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   83.010778][ T2539] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa14293f54e
[   83.010780][ T2539] RDX: 0000000000000000 RSI: 00007ffd66336110 RDI: 0000000000000005
[   83.010780][ T2539] RBP: 00007ffd66336070 R08: 0000000000000000 R09: 0000000000000000
[   83.010781][ T2539] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104a1
[   83.010782][ T2539] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd663367e0
| [   84.533252][ T2630] softirqs last disabled at (21694): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   84.533255][ T2630] Preemption disabled at:
| [   84.533255][ T2630] vprintk_emit (kernel/printk/printk.c:2471)
| [   84.533265][ T2630] Tainted: [W]=WARN
[   84.533266][ T2630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.533267][ T2630] Call Trace:
[   84.533269][ T2630]  <TASK>
[   84.533270][ T2630]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   84.533276][ T2630]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   84.533278][ T2630]  __might_resched.cold (kernel/sched/core.c:9234)
[   84.533282][ T2630]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   84.533287][ T2630]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   84.533291][ T2630]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   84.533293][ T2630]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   84.533300][ T2630]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.533303][ T2630]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   84.533306][ T2630]  put_chars (drivers/char/virtio_console.c:1176)
[   84.533309][ T2630]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   84.533310][ T2630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   84.533314][ T2630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   84.533320][ T2630]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   84.533328][ T2630]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   84.533330][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533333][ T2630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   84.533337][ T2630]  console_emit_next_record (kernel/printk/printk.c:3183)
[   84.533341][ T2630]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   84.533343][ T2630]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   84.533346][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533348][ T2630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   84.533352][ T2630]  console_flush_one_record (kernel/printk/printk.c:3268)
[   84.533357][ T2630]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   84.533359][ T2630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.533364][ T2630]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   84.533367][ T2630]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   84.533369][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533371][ T2630]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   84.533375][ T2630]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   84.533376][ T2630]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   84.533379][ T2630]  vprintk_emit (kernel/printk/printk.c:2479)
[   84.533383][ T2630]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   84.533384][ T2630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   84.533387][ T2630]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   84.533391][ T2630]  _printk (kernel/printk/printk.c:2504)
[   84.533395][ T2630]  ? snapshot_read.cold (user.c:?)
[   84.533398][ T2630]  ? br_multicast_flood (??:?)
[   84.533402][ T2630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   84.533403][ T2630]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   84.533404][ T2630]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   84.533409][ T2630]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   84.533413][ T2630]  br_init_port (net/bridge/br_stp_if.c:39)
[   84.533416][ T2630]  new_nbp (net/bridge/br_if.c:449)
[   84.533420][ T2630]  br_add_if (net/bridge/br_if.c:592)
[   84.533425][ T2630]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   84.533428][ T2630]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   84.533434][ T2630]  do_set_master (net/core/rtnetlink.c:3071)
[   84.533438][ T2630]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   84.533441][ T2630]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   84.533445][ T2630]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   84.533446][ T2630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   84.533449][ T2630]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.533453][ T2630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   84.533455][ T2630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   84.533456][ T2630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   84.533459][ T2630]  ? kasan_save_stack (mm/kasan/common.c:58)
[   84.533461][ T2630]  ? kasan_save_stack (mm/kasan/common.c:57)
[   84.533462][ T2630]  ? kasan_save_track (mm/kasan/common.c:78)
[   84.533464][ T2630]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   84.533466][ T2630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.533468][ T2630]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   84.533471][ T2630]  ? ___sys_sendmsg (net/socket.c:2758)
[   84.533475][ T2630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   84.533477][ T2630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   84.533480][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533482][ T2630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   84.533483][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533484][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533486][ T2630]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   84.533489][ T2630]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   84.533491][ T2630]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   84.533493][ T2630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   84.533496][ T2630]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   84.533498][ T2630]  ? nla_get_range_signed (lib/nlattr.c:270)
[   84.533502][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533505][ T2630]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   84.533510][ T2630]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   84.533516][ T2630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   84.533518][ T2630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.533523][ T2630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   84.533525][ T2630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.533527][ T2630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   84.533529][ T2630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   84.533533][ T2630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   84.533535][ T2630]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   84.533538][ T2630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.533539][ T2630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.533544][ T2630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   84.533546][ T2630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.533549][ T2630]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   84.533553][ T2630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.533556][ T2630]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.533563][ T2630]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.533565][ T2630]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.533569][ T2630]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.533574][ T2630]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.533576][ T2630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.533581][ T2630]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   84.533585][ T2630]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   84.533589][ T2630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   84.533591][ T2630]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   84.533596][ T2630]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   84.533599][ T2630]  ____sys_sendmsg (net/socket.c:2713)
[   84.533602][ T2630]  ? copy_msghdr_from_user (net/socket.c:2650)
[   84.533604][ T2630]  ? sock_write_iter (net/socket.c:1269)
[   84.533606][ T2630]  ? move_addr_to_kernel (net/socket.c:258)
[   84.533613][ T2630]  ___sys_sendmsg (net/socket.c:2767)
[   84.533616][ T2630]  ? copy_msghdr_from_user (net/socket.c:2619)
[   84.533633][ T2630]  __sys_sendmsg (net/socket.c:2799)
[   84.533636][ T2630]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   84.533643][ T2630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.533646][ T2630]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   84.533649][ T2630]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   84.533652][ T2630]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.533654][ T2630] RIP: 0033:0x7fdded4ed54e
[   84.533658][ T2630] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.533660][ T2630] RSP: 002b:00007ffcccd979b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.533662][ T2630] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdded4ed54e
[   84.533664][ T2630] RDX: 0000000000000000 RSI: 00007ffcccd97a60 RDI: 0000000000000005
[   84.533665][ T2630] RBP: 00007ffcccd979c0 R08: 0000000000000000 R09: 0000000000000000
[   84.533666][ T2630] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104a2
[   84.533666][ T2630] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcccd98130
| [   86.027833][ T2700] softirqs last disabled at (27184): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   86.027835][ T2700] Preemption disabled at:
| [   86.027836][ T2700] vprintk_emit (kernel/printk/printk.c:2471)
| [   86.027845][ T2700] Tainted: [W]=WARN
[   86.027846][ T2700] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.027848][ T2700] Call Trace:
[   86.027849][ T2700]  <TASK>
[   86.027851][ T2700]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   86.027857][ T2700]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   86.027859][ T2700]  __might_resched.cold (kernel/sched/core.c:9234)
[   86.027863][ T2700]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   86.027867][ T2700]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   86.027872][ T2700]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   86.027873][ T2700]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   86.027880][ T2700]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   86.027883][ T2700]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   86.027887][ T2700]  put_chars (drivers/char/virtio_console.c:1176)
[   86.027889][ T2700]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   86.027891][ T2700]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   86.027894][ T2700]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   86.027899][ T2700]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   86.027907][ T2700]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   86.027910][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.027912][ T2700]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.027916][ T2700]  console_emit_next_record (kernel/printk/printk.c:3183)
[   86.027920][ T2700]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   86.027921][ T2700]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   86.027925][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.027926][ T2700]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.027930][ T2700]  console_flush_one_record (kernel/printk/printk.c:3268)
[   86.027935][ T2700]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   86.027937][ T2700]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.027942][ T2700]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   86.027945][ T2700]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   86.027952][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.027954][ T2700]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   86.027957][ T2700]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   86.027959][ T2700]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   86.027962][ T2700]  vprintk_emit (kernel/printk/printk.c:2479)
[   86.027965][ T2700]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   86.027967][ T2700]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.027969][ T2700]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   86.027973][ T2700]  _printk (kernel/printk/printk.c:2504)
[   86.027976][ T2700]  ? snapshot_read.cold (user.c:?)
[   86.027980][ T2700]  ? br_multicast_flood (??:?)
[   86.027983][ T2700]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   86.027985][ T2700]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   86.027986][ T2700]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   86.027990][ T2700]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   86.027994][ T2700]  br_init_port (net/bridge/br_stp_if.c:39)
[   86.027996][ T2700]  new_nbp (net/bridge/br_if.c:449)
[   86.028000][ T2700]  br_add_if (net/bridge/br_if.c:592)
[   86.028003][ T2700]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   86.028006][ T2700]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   86.028012][ T2700]  do_set_master (net/core/rtnetlink.c:3071)
[   86.028015][ T2700]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   86.028018][ T2700]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   86.028022][ T2700]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   86.028023][ T2700]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   86.028025][ T2700]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   86.028029][ T2700]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   86.028031][ T2700]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   86.028033][ T2700]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   86.028035][ T2700]  ? kasan_save_stack (mm/kasan/common.c:58)
[   86.028037][ T2700]  ? kasan_save_stack (mm/kasan/common.c:57)
[   86.028039][ T2700]  ? kasan_save_track (mm/kasan/common.c:78)
[   86.028040][ T2700]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   86.028042][ T2700]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.028044][ T2700]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   86.028047][ T2700]  ? ___sys_sendmsg (net/socket.c:2758)
[   86.028051][ T2700]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.028053][ T2700]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   86.028055][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.028057][ T2700]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.028058][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.028059][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.028061][ T2700]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   86.028063][ T2700]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   86.028066][ T2700]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   86.028068][ T2700]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   86.028071][ T2700]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   86.028072][ T2700]  ? nla_get_range_signed (lib/nlattr.c:270)
[   86.028077][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.028079][ T2700]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   86.028084][ T2700]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   86.028089][ T2700]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.028091][ T2700]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.028096][ T2700]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.028098][ T2700]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.028100][ T2700]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.028102][ T2700]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.028106][ T2700]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.028108][ T2700]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   86.028111][ T2700]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   86.028112][ T2700]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.028116][ T2700]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.028118][ T2700]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.028122][ T2700]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   86.028125][ T2700]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   86.028127][ T2700]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   86.028134][ T2700]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   86.028136][ T2700]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   86.028140][ T2700]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   86.028144][ T2700]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   86.028147][ T2700]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.028151][ T2700]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   86.028155][ T2700]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   86.028159][ T2700]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.028160][ T2700]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   86.028165][ T2700]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   86.028168][ T2700]  ____sys_sendmsg (net/socket.c:2713)
[   86.028170][ T2700]  ? copy_msghdr_from_user (net/socket.c:2650)
[   86.028173][ T2700]  ? sock_write_iter (net/socket.c:1269)
[   86.028174][ T2700]  ? move_addr_to_kernel (net/socket.c:258)
[   86.028181][ T2700]  ___sys_sendmsg (net/socket.c:2767)
[   86.028184][ T2700]  ? copy_msghdr_from_user (net/socket.c:2619)
[   86.028200][ T2700]  __sys_sendmsg (net/socket.c:2799)
[   86.028203][ T2700]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   86.028209][ T2700]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.028212][ T2700]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   86.028215][ T2700]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   86.028218][ T2700]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   86.028220][ T2700] RIP: 0033:0x7f337e5c754e
[   86.028224][ T2700] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   86.028226][ T2700] RSP: 002b:00007ffff469c260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   86.028228][ T2700] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f337e5c754e
[   86.028230][ T2700] RDX: 0000000000000000 RSI: 00007ffff469c310 RDI: 0000000000000005
[   86.028231][ T2700] RBP: 00007ffff469c270 R08: 0000000000000000 R09: 0000000000000000
[   86.028231][ T2700] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104a4
[   86.028232][ T2700] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff469c9e0
| [   87.501226][ T2772] softirqs last disabled at (20430): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   87.501229][ T2772] Preemption disabled at:
| [   87.501230][ T2772] vprintk_emit (kernel/printk/printk.c:2471)
| [   87.501242][ T2772] Tainted: [W]=WARN
[   87.501243][ T2772] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.501245][ T2772] Call Trace:
[   87.501248][ T2772]  <TASK>
[   87.501250][ T2772]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.501257][ T2772]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   87.501260][ T2772]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.501266][ T2772]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.501272][ T2772]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   87.501279][ T2772]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   87.501282][ T2772]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.501292][ T2772]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   87.501295][ T2772]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.501301][ T2772]  put_chars (drivers/char/virtio_console.c:1176)
[   87.501305][ T2772]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.501307][ T2772]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   87.501313][ T2772]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   87.501323][ T2772]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.501335][ T2772]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.501339][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501342][ T2772]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.501349][ T2772]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.501356][ T2772]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.501358][ T2772]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   87.501364][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501367][ T2772]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.501374][ T2772]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.501381][ T2772]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.501384][ T2772]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.501393][ T2772]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.501398][ T2772]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.501401][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501404][ T2772]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   87.501411][ T2772]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.501413][ T2772]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.501418][ T2772]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.501426][ T2772]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.501429][ T2772]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.501434][ T2772]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   87.501440][ T2772]  _printk (kernel/printk/printk.c:2504)
[   87.501445][ T2772]  ? snapshot_read.cold (user.c:?)
[   87.501451][ T2772]  ? br_multicast_flood (??:?)
[   87.501455][ T2772]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   87.501458][ T2772]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.501460][ T2772]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.501468][ T2772]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   87.501475][ T2772]  br_init_port (net/bridge/br_stp_if.c:39)
[   87.501479][ T2772]  new_nbp (net/bridge/br_if.c:449)
[   87.501486][ T2772]  br_add_if (net/bridge/br_if.c:592)
[   87.501490][ T2772]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   87.501494][ T2772]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   87.501504][ T2772]  do_set_master (net/core/rtnetlink.c:3071)
[   87.501510][ T2772]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   87.501516][ T2772]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   87.501521][ T2772]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   87.501523][ T2772]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   87.501527][ T2772]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   87.501532][ T2772]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   87.501535][ T2772]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   87.501538][ T2772]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   87.501542][ T2772]  ? kasan_save_stack (mm/kasan/common.c:58)
[   87.501546][ T2772]  ? kasan_save_stack (mm/kasan/common.c:57)
[   87.501548][ T2772]  ? kasan_save_track (mm/kasan/common.c:78)
[   87.501550][ T2772]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.501554][ T2772]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.501557][ T2772]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   87.501561][ T2772]  ? ___sys_sendmsg (net/socket.c:2758)
[   87.501568][ T2772]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.501571][ T2772]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.501576][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501580][ T2772]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.501582][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501584][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501587][ T2772]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   87.501591][ T2772]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   87.501594][ T2772]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   87.501598][ T2772]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.501603][ T2772]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   87.501605][ T2772]  ? nla_get_range_signed (lib/nlattr.c:270)
[   87.501612][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501616][ T2772]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   87.501625][ T2772]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.501634][ T2772]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.501636][ T2772]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.501644][ T2772]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.501646][ T2772]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.501649][ T2772]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.501652][ T2772]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.501658][ T2772]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.501661][ T2772]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.501666][ T2772]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.501668][ T2772]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.501675][ T2772]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.501678][ T2772]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.501683][ T2772]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.501688][ T2772]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.501692][ T2772]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.501703][ T2772]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   87.501705][ T2772]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   87.501712][ T2772]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.501718][ T2772]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.501722][ T2772]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.501729][ T2772]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.501735][ T2772]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   87.501741][ T2772]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.501744][ T2772]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   87.501752][ T2772]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   87.501757][ T2772]  ____sys_sendmsg (net/socket.c:2713)
[   87.501761][ T2772]  ? copy_msghdr_from_user (net/socket.c:2650)
[   87.501765][ T2772]  ? sock_write_iter (net/socket.c:1269)
[   87.501767][ T2772]  ? move_addr_to_kernel (net/socket.c:258)
[   87.501781][ T2772]  ___sys_sendmsg (net/socket.c:2767)
[   87.501786][ T2772]  ? copy_msghdr_from_user (net/socket.c:2619)
[   87.501815][ T2772]  __sys_sendmsg (net/socket.c:2799)
[   87.501820][ T2772]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   87.501831][ T2772]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.501837][ T2772]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.501841][ T2772]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   87.501846][ T2772]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.501849][ T2772] RIP: 0033:0x7fb1fbbe554e
[   87.501854][ T2772] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   87.501857][ T2772] RSP: 002b:00007ffc0aaf48b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.501862][ T2772] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb1fbbe554e
[   87.501864][ T2772] RDX: 0000000000000000 RSI: 00007ffc0aaf4960 RDI: 0000000000000005
[   87.501866][ T2772] RBP: 00007ffc0aaf48c0 R08: 0000000000000000 R09: 0000000000000000
[   87.501867][ T2772] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104a5
[   87.501869][ T2772] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc0aaf5030
| [   89.015236][   T12] softirqs last disabled at (993308): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   89.015238][   T12] Preemption disabled at:
| [   89.015239][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   89.015248][   T12] Tainted: [W]=WARN
[   89.015249][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.015251][   T12] Workqueue: netns cleanup_net
[   89.015254][   T12] Call Trace:
[   89.015256][   T12]  <TASK>
[   89.015258][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   89.015263][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   89.015265][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   89.015270][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   89.015273][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   89.015278][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   89.015280][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   89.015286][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   89.015289][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   89.015293][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   89.015295][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   89.015297][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   89.015300][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   89.015303][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   89.015308][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   89.015312][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   89.015318][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   89.015321][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.015326][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   89.015330][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   89.015332][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   89.015336][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.015337][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   89.015342][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   89.015346][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   89.015348][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   89.015353][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   89.015356][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   89.015358][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.015360][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   89.015364][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   89.015366][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   89.015368][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   89.015372][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   89.015373][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   89.015375][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   89.015377][   T12]  ? kthread (kernel/kthread.c:436)
[   89.015379][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   89.015382][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   89.015387][   T12]  _printk (kernel/printk/printk.c:2504)
[   89.015390][   T12]  ? snapshot_read.cold (user.c:?)
[   89.015395][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   89.015398][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   89.015402][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   89.015405][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   89.015410][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.015412][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   89.015414][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   89.015416][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   89.015418][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   89.015427][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   89.015431][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   89.015437][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   89.015441][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   89.015444][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   89.015448][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   89.015451][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   89.015453][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   89.015456][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   89.015461][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   89.015464][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.015468][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   89.015470][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.015474][   T12]  process_one_work (kernel/workqueue.c:3387)
[   89.015481][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   89.015484][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   89.015491][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   89.015499][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   89.015501][   T12]  kthread (kernel/kthread.c:436)
[   89.015503][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.015506][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   89.015509][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.015512][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   89.015515][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.015519][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   89.015522][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   90.469038][ T2907] softirqs last disabled at (15086): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   90.469040][ T2907] Preemption disabled at:
| [   90.469041][ T2907] vprintk_emit (kernel/printk/printk.c:2471)
| [   90.469051][ T2907] Tainted: [W]=WARN
[   90.469052][ T2907] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   90.469053][ T2907] Call Trace:
[   90.469055][ T2907]  <TASK>
[   90.469056][ T2907]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   90.469062][ T2907]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   90.469064][ T2907]  __might_resched.cold (kernel/sched/core.c:9234)
[   90.469068][ T2907]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   90.469073][ T2907]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   90.469077][ T2907]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   90.469079][ T2907]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   90.469086][ T2907]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   90.469089][ T2907]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   90.469093][ T2907]  put_chars (drivers/char/virtio_console.c:1176)
[   90.469096][ T2907]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   90.469102][ T2907]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   90.469110][ T2907]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   90.469113][ T2907]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   90.469118][ T2907]  console_emit_next_record (kernel/printk/printk.c:3183)
[   90.469122][ T2907]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   90.469124][ T2907]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   90.469127][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469130][ T2907]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   90.469134][ T2907]  console_flush_one_record (kernel/printk/printk.c:3268)
[   90.469138][ T2907]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   90.469140][ T2907]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   90.469145][ T2907]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   90.469148][ T2907]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   90.469150][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469152][ T2907]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   90.469155][ T2907]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   90.469157][ T2907]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   90.469160][ T2907]  vprintk_emit (kernel/printk/printk.c:2479)
[   90.469163][ T2907]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   90.469165][ T2907]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   90.469167][ T2907]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   90.469169][ T2907]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   90.469173][ T2907]  _printk (kernel/printk/printk.c:2504)
[   90.469177][ T2907]  ? snapshot_read.cold (user.c:?)
[   90.469178][ T2907]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   90.469181][ T2907]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   90.469184][ T2907]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   90.469186][ T2907]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   90.469190][ T2907]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   90.469193][ T2907]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   90.469195][ T2907]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   90.469198][ T2907]  ? netdev_notice (net/core/dev.c:13194)
[   90.469201][ T2907]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   90.469203][ T2907]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   90.469206][ T2907]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   90.469210][ T2907]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   90.469212][ T2907]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   90.469214][ T2907]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   90.469219][ T2907]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   90.469222][ T2907]  ? __kernel_text_address (kernel/extable.c:79)
[   90.469225][ T2907]  ? write_profile (profile.c:?)
[   90.469229][ T2907]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   90.469234][ T2907]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   90.469238][ T2907]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   90.469240][ T2907]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   90.469241][ T2907]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   90.469243][ T2907]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   90.469247][ T2907]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   90.469249][ T2907]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   90.469250][ T2907]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   90.469253][ T2907]  ? kasan_save_stack (mm/kasan/common.c:58)
[   90.469255][ T2907]  ? kasan_save_stack (mm/kasan/common.c:57)
[   90.469256][ T2907]  ? kasan_save_track (mm/kasan/common.c:78)
[   90.469257][ T2907]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   90.469259][ T2907]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   90.469261][ T2907]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   90.469264][ T2907]  ? ___sys_sendmsg (net/socket.c:2758)
[   90.469268][ T2907]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   90.469270][ T2907]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   90.469273][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469274][ T2907]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   90.469276][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469277][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469279][ T2907]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   90.469281][ T2907]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   90.469284][ T2907]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   90.469286][ T2907]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   90.469289][ T2907]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   90.469290][ T2907]  ? nla_get_range_signed (lib/nlattr.c:270)
[   90.469295][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469297][ T2907]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   90.469303][ T2907]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   90.469308][ T2907]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   90.469310][ T2907]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   90.469314][ T2907]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   90.469316][ T2907]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   90.469318][ T2907]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   90.469320][ T2907]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   90.469324][ T2907]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   90.469326][ T2907]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   90.469329][ T2907]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   90.469330][ T2907]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   90.469335][ T2907]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   90.469336][ T2907]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   90.469340][ T2907]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   90.469343][ T2907]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   90.469346][ T2907]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   90.469352][ T2907]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   90.469355][ T2907]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   90.469359][ T2907]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   90.469363][ T2907]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   90.469365][ T2907]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   90.469370][ T2907]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   90.469374][ T2907]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   90.469377][ T2907]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   90.469379][ T2907]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   90.469384][ T2907]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   90.469387][ T2907]  ____sys_sendmsg (net/socket.c:2713)
[   90.469389][ T2907]  ? copy_msghdr_from_user (net/socket.c:2650)
[   90.469392][ T2907]  ? sock_write_iter (net/socket.c:1269)
[   90.469393][ T2907]  ? move_addr_to_kernel (net/socket.c:258)
[   90.469400][ T2907]  ___sys_sendmsg (net/socket.c:2767)
[   90.469403][ T2907]  ? copy_msghdr_from_user (net/socket.c:2619)
[   90.469419][ T2907]  __sys_sendmsg (net/socket.c:2799)
[   90.469424][ T2907]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   90.469431][ T2907]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   90.469434][ T2907]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   90.469437][ T2907]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   90.469440][ T2907]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   90.469442][ T2907] RIP: 0033:0x7f321f44d54e
[   90.469446][ T2907] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   90.469448][ T2907] RSP: 002b:00007ffc69686f80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   90.469451][ T2907] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f321f44d54e
[   90.469452][ T2907] RDX: 0000000000000000 RSI: 00007ffc69687030 RDI: 0000000000000005
[   90.469453][ T2907] RBP: 00007ffc69686f90 R08: 0000000000000000 R09: 0000000000000000
[   90.469454][ T2907] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104a8
[   90.469455][ T2907] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc69687700
| [  103.040341][ T3208] softirqs last disabled at (17060): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  103.040343][ T3208] Preemption disabled at:
| [  103.040344][ T3208] vprintk_emit (kernel/printk/printk.c:2471)
| [  103.040353][ T3208] Tainted: [W]=WARN
[  103.040354][ T3208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  103.040355][ T3208] Call Trace:
[  103.040357][ T3208]  <TASK>
[  103.040359][ T3208]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  103.040365][ T3208]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  103.040366][ T3208]  __might_resched.cold (kernel/sched/core.c:9234)
[  103.040371][ T3208]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  103.040375][ T3208]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  103.040379][ T3208]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  103.040381][ T3208]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.040387][ T3208]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  103.040390][ T3208]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.040394][ T3208]  put_chars (drivers/char/virtio_console.c:1176)
[  103.040396][ T3208]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  103.040398][ T3208]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.040401][ T3208]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.040407][ T3208]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  103.040414][ T3208]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  103.040417][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040419][ T3208]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.040425][ T3208]  console_emit_next_record (kernel/printk/printk.c:3183)
[  103.040429][ T3208]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  103.040431][ T3208]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  103.040434][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040436][ T3208]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.040440][ T3208]  console_flush_one_record (kernel/printk/printk.c:3268)
[  103.040444][ T3208]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  103.040446][ T3208]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.040451][ T3208]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  103.040454][ T3208]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  103.040456][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040458][ T3208]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  103.040461][ T3208]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  103.040463][ T3208]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  103.040466][ T3208]  vprintk_emit (kernel/printk/printk.c:2479)
[  103.040469][ T3208]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  103.040471][ T3208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.040473][ T3208]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  103.040477][ T3208]  _printk (kernel/printk/printk.c:2504)
[  103.040480][ T3208]  ? snapshot_read.cold (user.c:?)
[  103.040484][ T3208]  ? br_multicast_flood (??:?)
[  103.040487][ T3208]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  103.040489][ T3208]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  103.040490][ T3208]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  103.040494][ T3208]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  103.040498][ T3208]  br_init_port (net/bridge/br_stp_if.c:39)
[  103.040501][ T3208]  new_nbp (net/bridge/br_if.c:449)
[  103.040505][ T3208]  br_add_if (net/bridge/br_if.c:592)
[  103.040507][ T3208]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  103.040511][ T3208]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  103.040516][ T3208]  do_set_master (net/core/rtnetlink.c:3071)
[  103.040519][ T3208]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  103.040523][ T3208]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  103.040526][ T3208]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  103.040527][ T3208]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  103.040530][ T3208]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  103.040533][ T3208]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.040535][ T3208]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  103.040537][ T3208]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.040539][ T3208]  ? kasan_save_stack (mm/kasan/common.c:58)
[  103.040542][ T3208]  ? kasan_save_stack (mm/kasan/common.c:57)
[  103.040543][ T3208]  ? kasan_save_track (mm/kasan/common.c:78)
[  103.040544][ T3208]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  103.040546][ T3208]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.040548][ T3208]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  103.040551][ T3208]  ? ___sys_sendmsg (net/socket.c:2758)
[  103.040555][ T3208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.040557][ T3208]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  103.040559][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040561][ T3208]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.040562][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040564][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040565][ T3208]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  103.040567][ T3208]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  103.040570][ T3208]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  103.040572][ T3208]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  103.040575][ T3208]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  103.040577][ T3208]  ? nla_get_range_signed (lib/nlattr.c:270)
[  103.040582][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040584][ T3208]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  103.040589][ T3208]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  103.040594][ T3208]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.040596][ T3208]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.040600][ T3208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.040602][ T3208]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.040604][ T3208]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.040606][ T3208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.040610][ T3208]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.040612][ T3208]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  103.040615][ T3208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.040616][ T3208]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.040620][ T3208]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.040622][ T3208]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.040626][ T3208]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  103.040629][ T3208]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.040631][ T3208]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  103.040638][ T3208]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  103.040640][ T3208]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  103.040644][ T3208]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  103.040648][ T3208]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  103.040650][ T3208]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.040655][ T3208]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  103.040659][ T3208]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  103.040662][ T3208]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.040664][ T3208]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  103.040669][ T3208]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  103.040672][ T3208]  ____sys_sendmsg (net/socket.c:2713)
[  103.040674][ T3208]  ? copy_msghdr_from_user (net/socket.c:2650)
[  103.040677][ T3208]  ? sock_write_iter (net/socket.c:1269)
[  103.040678][ T3208]  ? move_addr_to_kernel (net/socket.c:258)
[  103.040685][ T3208]  ___sys_sendmsg (net/socket.c:2767)
[  103.040688][ T3208]  ? copy_msghdr_from_user (net/socket.c:2619)
[  103.040704][ T3208]  __sys_sendmsg (net/socket.c:2799)
[  103.040706][ T3208]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  103.040713][ T3208]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.040716][ T3208]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  103.040719][ T3208]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  103.040722][ T3208]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  103.040724][ T3208] RIP: 0033:0x7f8a4887054e
[  103.040727][ T3208] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  103.040729][ T3208] RSP: 002b:00007ffe0c36d270 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  103.040732][ T3208] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8a4887054e
[  103.040733][ T3208] RDX: 0000000000000000 RSI: 00007ffe0c36d320 RDI: 0000000000000005
[  103.040734][ T3208] RBP: 00007ffe0c36d280 R08: 0000000000000000 R09: 0000000000000000
[  103.040735][ T3208] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104b5
[  103.040735][ T3208] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0c36d9f0
| [  104.554538][ T3297] softirqs last disabled at (22320): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  104.554541][ T3297] Preemption disabled at:
| [  104.554541][ T3297] vprintk_emit (kernel/printk/printk.c:2471)
| [  104.554550][ T3297] Tainted: [W]=WARN
[  104.554551][ T3297] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  104.554553][ T3297] Call Trace:
[  104.554554][ T3297]  <TASK>
[  104.554556][ T3297]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  104.554563][ T3297]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  104.554564][ T3297]  __might_resched.cold (kernel/sched/core.c:9234)
[  104.554569][ T3297]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  104.554573][ T3297]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  104.554578][ T3297]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  104.554580][ T3297]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.554587][ T3297]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  104.554590][ T3297]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.554594][ T3297]  put_chars (drivers/char/virtio_console.c:1176)
[  104.554596][ T3297]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  104.554597][ T3297]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.554601][ T3297]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.554606][ T3297]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  104.554614][ T3297]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  104.554617][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554619][ T3297]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.554623][ T3297]  console_emit_next_record (kernel/printk/printk.c:3183)
[  104.554627][ T3297]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  104.554629][ T3297]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  104.554632][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554633][ T3297]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.554637][ T3297]  console_flush_one_record (kernel/printk/printk.c:3268)
[  104.554642][ T3297]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  104.554644][ T3297]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.554649][ T3297]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  104.554652][ T3297]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  104.554654][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554655][ T3297]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  104.554659][ T3297]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  104.554661][ T3297]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  104.554663][ T3297]  vprintk_emit (kernel/printk/printk.c:2479)
[  104.554667][ T3297]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  104.554668][ T3297]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.554671][ T3297]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  104.554675][ T3297]  _printk (kernel/printk/printk.c:2504)
[  104.554678][ T3297]  ? snapshot_read.cold (user.c:?)
[  104.554682][ T3297]  ? br_multicast_flood (??:?)
[  104.554685][ T3297]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.554686][ T3297]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.554688][ T3297]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.554692][ T3297]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  104.554696][ T3297]  br_init_port (net/bridge/br_stp_if.c:39)
[  104.554699][ T3297]  new_nbp (net/bridge/br_if.c:449)
[  104.554703][ T3297]  br_add_if (net/bridge/br_if.c:592)
[  104.554705][ T3297]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  104.554709][ T3297]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  104.554714][ T3297]  do_set_master (net/core/rtnetlink.c:3071)
[  104.554718][ T3297]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.554721][ T3297]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  104.554725][ T3297]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  104.554726][ T3297]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  104.554728][ T3297]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  104.554732][ T3297]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.554734][ T3297]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  104.554736][ T3297]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.554738][ T3297]  ? kasan_save_stack (mm/kasan/common.c:58)
[  104.554740][ T3297]  ? kasan_save_stack (mm/kasan/common.c:57)
[  104.554742][ T3297]  ? kasan_save_track (mm/kasan/common.c:78)
[  104.554743][ T3297]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  104.554745][ T3297]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.554747][ T3297]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  104.554750][ T3297]  ? ___sys_sendmsg (net/socket.c:2758)
[  104.554754][ T3297]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.554756][ T3297]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.554759][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554761][ T3297]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.554762][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554763][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554765][ T3297]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  104.554767][ T3297]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  104.554770][ T3297]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  104.554772][ T3297]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.554775][ T3297]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  104.554776][ T3297]  ? nla_get_range_signed (lib/nlattr.c:270)
[  104.554781][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554783][ T3297]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  104.554788][ T3297]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.554794][ T3297]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.554795][ T3297]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.554800][ T3297]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.554802][ T3297]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.554804][ T3297]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.554806][ T3297]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.554810][ T3297]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.554812][ T3297]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.554815][ T3297]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.554816][ T3297]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.554821][ T3297]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.554823][ T3297]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.554826][ T3297]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  104.554829][ T3297]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.554832][ T3297]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  104.554839][ T3297]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  104.554841][ T3297]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  104.554846][ T3297]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  104.554850][ T3297]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  104.554852][ T3297]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.554857][ T3297]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  104.554861][ T3297]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  104.554865][ T3297]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.554866][ T3297]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  104.554872][ T3297]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  104.554875][ T3297]  ____sys_sendmsg (net/socket.c:2713)
[  104.554877][ T3297]  ? copy_msghdr_from_user (net/socket.c:2650)
[  104.554879][ T3297]  ? sock_write_iter (net/socket.c:1269)
[  104.554881][ T3297]  ? move_addr_to_kernel (net/socket.c:258)
[  104.554888][ T3297]  ___sys_sendmsg (net/socket.c:2767)
[  104.554891][ T3297]  ? copy_msghdr_from_user (net/socket.c:2619)
[  104.554907][ T3297]  __sys_sendmsg (net/socket.c:2799)
[  104.554910][ T3297]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  104.554916][ T3297]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[  104.554919][ T3297]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.554923][ T3297]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  104.554926][ T3297]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  104.554928][ T3297]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  104.554931][ T3297] RIP: 0033:0x7f0683e5554e
[  104.554934][ T3297] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  104.554936][ T3297] RSP: 002b:00007ffc095de370 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  104.554939][ T3297] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0683e5554e
[  104.554940][ T3297] RDX: 0000000000000000 RSI: 00007ffc095de420 RDI: 0000000000000005
[  104.554941][ T3297] RBP: 00007ffc095de380 R08: 0000000000000000 R09: 0000000000000000
[  104.554942][ T3297] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104b6
[  104.554943][ T3297] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc095deaf0
| [  105.998440][ T3367] softirqs last disabled at (20820): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  105.998443][ T3367] Preemption disabled at:
| [  105.998443][ T3367] vprintk_emit (kernel/printk/printk.c:2471)
| [  105.998452][ T3367] Tainted: [W]=WARN
[  105.998453][ T3367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  105.998455][ T3367] Call Trace:
[  105.998457][ T3367]  <TASK>
[  105.998458][ T3367]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  105.998464][ T3367]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  105.998466][ T3367]  __might_resched.cold (kernel/sched/core.c:9234)
[  105.998470][ T3367]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  105.998475][ T3367]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  105.998479][ T3367]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  105.998481][ T3367]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.998487][ T3367]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  105.998490][ T3367]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.998493][ T3367]  put_chars (drivers/char/virtio_console.c:1176)
[  105.998496][ T3367]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  105.998497][ T3367]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.998500][ T3367]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.998506][ T3367]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  105.998513][ T3367]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  105.998516][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998517][ T3367]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.998521][ T3367]  console_emit_next_record (kernel/printk/printk.c:3183)
[  105.998525][ T3367]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  105.998527][ T3367]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  105.998530][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998532][ T3367]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.998536][ T3367]  console_flush_one_record (kernel/printk/printk.c:3268)
[  105.998540][ T3367]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  105.998542][ T3367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.998547][ T3367]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  105.998550][ T3367]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  105.998552][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998553][ T3367]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  105.998557][ T3367]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  105.998558][ T3367]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  105.998561][ T3367]  vprintk_emit (kernel/printk/printk.c:2479)
[  105.998564][ T3367]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  105.998566][ T3367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.998569][ T3367]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  105.998572][ T3367]  _printk (kernel/printk/printk.c:2504)
[  105.998576][ T3367]  ? snapshot_read.cold (user.c:?)
[  105.998580][ T3367]  ? br_multicast_flood (??:?)
[  105.998583][ T3367]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.998585][ T3367]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.998586][ T3367]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.998590][ T3367]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  105.998594][ T3367]  br_init_port (net/bridge/br_stp_if.c:39)
[  105.998596][ T3367]  new_nbp (net/bridge/br_if.c:449)
[  105.998600][ T3367]  br_add_if (net/bridge/br_if.c:592)
[  105.998602][ T3367]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  105.998606][ T3367]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  105.998611][ T3367]  do_set_master (net/core/rtnetlink.c:3071)
[  105.998614][ T3367]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.998617][ T3367]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  105.998621][ T3367]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  105.998622][ T3367]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  105.998624][ T3367]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  105.998628][ T3367]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.998630][ T3367]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  105.998631][ T3367]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.998634][ T3367]  ? kasan_save_stack (mm/kasan/common.c:58)
[  105.998636][ T3367]  ? kasan_save_stack (mm/kasan/common.c:57)
[  105.998637][ T3367]  ? kasan_save_track (mm/kasan/common.c:78)
[  105.998638][ T3367]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  105.998641][ T3367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.998642][ T3367]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  105.998645][ T3367]  ? ___sys_sendmsg (net/socket.c:2758)
[  105.998649][ T3367]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.998651][ T3367]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.998653][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998655][ T3367]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.998657][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998658][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998659][ T3367]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  105.998661][ T3367]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  105.998664][ T3367]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  105.998666][ T3367]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.998669][ T3367]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  105.998670][ T3367]  ? nla_get_range_signed (lib/nlattr.c:270)
[  105.998675][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998677][ T3367]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  105.998682][ T3367]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.998687][ T3367]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.998689][ T3367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.998694][ T3367]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.998695][ T3367]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.998698][ T3367]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.998699][ T3367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.998703][ T3367]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.998705][ T3367]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.998708][ T3367]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.998709][ T3367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.998714][ T3367]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.998716][ T3367]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.998719][ T3367]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  105.998722][ T3367]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.998725][ T3367]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  105.998732][ T3367]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  105.998734][ T3367]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  105.998738][ T3367]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  105.998742][ T3367]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  105.998744][ T3367]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.998748][ T3367]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  105.998752][ T3367]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  105.998756][ T3367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.998758][ T3367]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  105.998763][ T3367]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  105.998765][ T3367]  ____sys_sendmsg (net/socket.c:2713)
[  105.998768][ T3367]  ? copy_msghdr_from_user (net/socket.c:2650)
[  105.998770][ T3367]  ? sock_write_iter (net/socket.c:1269)
[  105.998771][ T3367]  ? move_addr_to_kernel (net/socket.c:258)
[  105.998779][ T3367]  ___sys_sendmsg (net/socket.c:2767)
[  105.998781][ T3367]  ? copy_msghdr_from_user (net/socket.c:2619)
[  105.998797][ T3367]  __sys_sendmsg (net/socket.c:2799)
[  105.998800][ T3367]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  105.998806][ T3367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.998809][ T3367]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  105.998812][ T3367]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  105.998815][ T3367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  105.998817][ T3367] RIP: 0033:0x7fc52bf3554e
[  105.998821][ T3367] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  105.998823][ T3367] RSP: 002b:00007ffe0e64dd30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  105.998825][ T3367] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc52bf3554e
[  105.998827][ T3367] RDX: 0000000000000000 RSI: 00007ffe0e64dde0 RDI: 0000000000000005
[  105.998828][ T3367] RBP: 00007ffe0e64dd40 R08: 0000000000000000 R09: 0000000000000000
[  105.998828][ T3367] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104b8
[  105.998830][ T3367] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0e64e4b0
| [  107.023011][ T3427] softirqs last disabled at (14538): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119)
| [  107.023013][ T3427] Preemption disabled at:
| [  107.023014][ T3427] 0x0
| [  107.023026][ T3427] Tainted: [W]=WARN
[  107.023027][ T3427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  107.023029][ T3427] Call Trace:
[  107.023030][ T3427]  <TASK>
[  107.023032][ T3427]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  107.023038][ T3427]  __might_resched.cold (kernel/sched/core.c:9234)
[  107.023043][ T3427]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  107.023047][ T3427]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  107.023051][ T3427]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  107.023053][ T3427]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  107.023060][ T3427]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  107.023063][ T3427]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  107.023067][ T3427]  put_chars (drivers/char/virtio_console.c:1176)
[  107.023069][ T3427]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  107.023071][ T3427]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.023074][ T3427]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  107.023080][ T3427]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  107.023087][ T3427]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  107.023090][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023092][ T3427]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.023096][ T3427]  console_emit_next_record (kernel/printk/printk.c:3183)
[  107.023100][ T3427]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  107.023102][ T3427]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  107.023105][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023107][ T3427]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.023111][ T3427]  console_flush_one_record (kernel/printk/printk.c:3268)
[  107.023115][ T3427]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  107.023117][ T3427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.023123][ T3427]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  107.023126][ T3427]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  107.023128][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023129][ T3427]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  107.023133][ T3427]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  107.023135][ T3427]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  107.023138][ T3427]  vprintk_emit (kernel/printk/printk.c:2479)
[  107.023141][ T3427]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  107.023143][ T3427]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.023145][ T3427]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  107.023150][ T3427]  _printk (kernel/printk/printk.c:2504)
[  107.023153][ T3427]  ? snapshot_read.cold (user.c:?)
[  107.023158][ T3427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.023162][ T3427]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  107.023167][ T3427]  br_init_port (net/bridge/br_stp_if.c:39)
[  107.023170][ T3427]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[  107.023172][ T3427]  br_device_event (net/bridge/br.c:120)
[  107.023175][ T3427]  ? packet_sendmsg_spkt (af_packet.c:?)
[  107.023176][ T3427]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[  107.023183][ T3427]  notifier_call_chain (kernel/notifier.c:85)
[  107.023189][ T3427]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[  107.023194][ T3427]  ? netif_change_name (net/core/dev.c:1517)
[  107.023198][ T3427]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[  107.023200][ T3427]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  107.023203][ T3427]  ? __kernel_text_address (kernel/extable.c:79)
[  107.023205][ T3427]  ? write_profile (profile.c:?)
[  107.023210][ T3427]  netif_change_flags (net/core/dev.c:9882)
[  107.023214][ T3427]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  107.023217][ T3427]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  107.023219][ T3427]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  107.023221][ T3427]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  107.023223][ T3427]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  107.023226][ T3427]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.023228][ T3427]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  107.023230][ T3427]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  107.023232][ T3427]  ? kasan_save_stack (mm/kasan/common.c:58)
[  107.023235][ T3427]  ? kasan_save_stack (mm/kasan/common.c:57)
[  107.023236][ T3427]  ? kasan_save_track (mm/kasan/common.c:78)
[  107.023237][ T3427]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  107.023239][ T3427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.023241][ T3427]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  107.023244][ T3427]  ? ___sys_sendmsg (net/socket.c:2758)
[  107.023248][ T3427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.023250][ T3427]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  107.023253][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023255][ T3427]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.023256][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023257][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023259][ T3427]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  107.023261][ T3427]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  107.023264][ T3427]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  107.023266][ T3427]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  107.023270][ T3427]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  107.023273][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023275][ T3427]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  107.023281][ T3427]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  107.023286][ T3427]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.023288][ T3427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.023293][ T3427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.023295][ T3427]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.023297][ T3427]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.023299][ T3427]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.023302][ T3427]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.023304][ T3427]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  107.023308][ T3427]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  107.023309][ T3427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.023314][ T3427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.023316][ T3427]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.023319][ T3427]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  107.023321][ T3427]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  107.023324][ T3427]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  107.023330][ T3427]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  107.023332][ T3427]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  107.023337][ T3427]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  107.023341][ T3427]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  107.023344][ T3427]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.023348][ T3427]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  107.023352][ T3427]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  107.023356][ T3427]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.023357][ T3427]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  107.023363][ T3427]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  107.023366][ T3427]  ____sys_sendmsg (net/socket.c:2713)
[  107.023368][ T3427]  ? copy_msghdr_from_user (net/socket.c:2650)
[  107.023370][ T3427]  ? sock_write_iter (net/socket.c:1269)
[  107.023372][ T3427]  ? move_addr_to_kernel (net/socket.c:258)
[  107.023379][ T3427]  ___sys_sendmsg (net/socket.c:2767)
[  107.023382][ T3427]  ? copy_msghdr_from_user (net/socket.c:2619)
[  107.023398][ T3427]  __sys_sendmsg (net/socket.c:2799)
[  107.023401][ T3427]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  107.023407][ T3427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.023410][ T3427]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  107.023413][ T3427]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  107.023416][ T3427]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  107.023419][ T3427] RIP: 0033:0x7f18b069b54e
[  107.023421][ T3427] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  107.023425][ T3427] RSP: 002b:00007fff0ac97ed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  107.023428][ T3427] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f18b069b54e
[  107.023430][ T3427] RDX: 0000000000000000 RSI: 00007fff0ac97f80 RDI: 0000000000000005
[  107.023431][ T3427] RBP: 00007fff0ac97ee0 R08: 0000000000000000 R09: 0000000000000000
[  107.023431][ T3427] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104b9
[  107.023432][ T3427] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff0ac98650
| [  108.055737][ T3468] softirqs last disabled at (22450): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  108.055739][ T3468] Preemption disabled at:
| [  108.055740][ T3468] vprintk_emit (kernel/printk/printk.c:2471)
| [  108.055749][ T3468] Tainted: [W]=WARN
[  108.055750][ T3468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  108.055752][ T3468] Call Trace:
[  108.055753][ T3468]  <TASK>
[  108.055755][ T3468]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  108.055761][ T3468]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  108.055762][ T3468]  __might_resched.cold (kernel/sched/core.c:9234)
[  108.055767][ T3468]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  108.055771][ T3468]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  108.055776][ T3468]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  108.055778][ T3468]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  108.055784][ T3468]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  108.055787][ T3468]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  108.055791][ T3468]  put_chars (drivers/char/virtio_console.c:1176)
[  108.055793][ T3468]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  108.055795][ T3468]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  108.055798][ T3468]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  108.055804][ T3468]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  108.055812][ T3468]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  108.055814][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.055816][ T3468]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  108.055821][ T3468]  console_emit_next_record (kernel/printk/printk.c:3183)
[  108.055825][ T3468]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  108.055827][ T3468]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  108.055830][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.055832][ T3468]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  108.055836][ T3468]  console_flush_one_record (kernel/printk/printk.c:3268)
[  108.055840][ T3468]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  108.055842][ T3468]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.055847][ T3468]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  108.055850][ T3468]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  108.055852][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.055854][ T3468]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  108.055858][ T3468]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  108.055859][ T3468]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  108.055862][ T3468]  vprintk_emit (kernel/printk/printk.c:2479)
[  108.055865][ T3468]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  108.055867][ T3468]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  108.055870][ T3468]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  108.055873][ T3468]  _printk (kernel/printk/printk.c:2504)
[  108.055877][ T3468]  ? snapshot_read.cold (user.c:?)
[  108.055881][ T3468]  ? br_multicast_flood (??:?)
[  108.055884][ T3468]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  108.055885][ T3468]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  108.055887][ T3468]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  108.055891][ T3468]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  108.055895][ T3468]  br_init_port (net/bridge/br_stp_if.c:39)
[  108.055898][ T3468]  new_nbp (net/bridge/br_if.c:449)
[  108.055901][ T3468]  br_add_if (net/bridge/br_if.c:592)
[  108.055904][ T3468]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  108.055907][ T3468]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  108.055913][ T3468]  do_set_master (net/core/rtnetlink.c:3071)
[  108.055917][ T3468]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  108.055920][ T3468]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  108.055923][ T3468]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  108.055925][ T3468]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  108.055927][ T3468]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  108.055931][ T3468]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  108.055933][ T3468]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  108.055935][ T3468]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  108.055937][ T3468]  ? kasan_save_stack (mm/kasan/common.c:58)
[  108.055939][ T3468]  ? kasan_save_stack (mm/kasan/common.c:57)
[  108.055941][ T3468]  ? kasan_save_track (mm/kasan/common.c:78)
[  108.055942][ T3468]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  108.055952][ T3468]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.055955][ T3468]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  108.055959][ T3468]  ? ___sys_sendmsg (net/socket.c:2758)
[  108.055965][ T3468]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  108.055968][ T3468]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  108.055972][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.055975][ T3468]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  108.055977][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.055979][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.055982][ T3468]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  108.055985][ T3468]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  108.055987][ T3468]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  108.055989][ T3468]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  108.055993][ T3468]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  108.055994][ T3468]  ? nla_get_range_signed (lib/nlattr.c:270)
[  108.055999][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.056001][ T3468]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  108.056007][ T3468]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  108.056012][ T3468]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  108.056014][ T3468]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.056019][ T3468]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  108.056020][ T3468]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  108.056023][ T3468]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  108.056024][ T3468]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  108.056028][ T3468]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  108.056030][ T3468]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  108.056033][ T3468]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  108.056035][ T3468]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.056039][ T3468]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  108.056041][ T3468]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  108.056045][ T3468]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  108.056048][ T3468]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  108.056051][ T3468]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  108.056057][ T3468]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  108.056059][ T3468]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  108.056064][ T3468]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  108.056068][ T3468]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  108.056070][ T3468]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  108.056075][ T3468]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  108.056079][ T3468]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  108.056082][ T3468]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  108.056084][ T3468]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  108.056089][ T3468]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  108.056092][ T3468]  ____sys_sendmsg (net/socket.c:2713)
[  108.056095][ T3468]  ? copy_msghdr_from_user (net/socket.c:2650)
[  108.056097][ T3468]  ? sock_write_iter (net/socket.c:1269)
[  108.056099][ T3468]  ? move_addr_to_kernel (net/socket.c:258)
[  108.056106][ T3468]  ___sys_sendmsg (net/socket.c:2767)
[  108.056109][ T3468]  ? copy_msghdr_from_user (net/socket.c:2619)
[  108.056125][ T3468]  __sys_sendmsg (net/socket.c:2799)
[  108.056127][ T3468]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  108.056134][ T3468]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.056137][ T3468]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  108.056140][ T3468]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  108.056143][ T3468]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  108.056146][ T3468] RIP: 0033:0x7f0c6effa54e
[  108.056149][ T3468] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  108.056151][ T3468] RSP: 002b:00007ffcf5ccb200 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  108.056154][ T3468] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0c6effa54e
[  108.056156][ T3468] RDX: 0000000000000000 RSI: 00007ffcf5ccb2b0 RDI: 0000000000000005
[  108.056156][ T3468] RBP: 00007ffcf5ccb210 R08: 0000000000000000 R09: 0000000000000000
[  108.056157][ T3468] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104ba
[  108.056158][ T3468] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf5ccb980
| [  109.528814][ T3538] softirqs last disabled at (28440): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  109.528817][ T3538] Preemption disabled at:
| [  109.528817][ T3538] vprintk_emit (kernel/printk/printk.c:2471)
| [  109.528826][ T3538] Tainted: [W]=WARN
[  109.528827][ T3538] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  109.528829][ T3538] Call Trace:
[  109.528830][ T3538]  <TASK>
[  109.528832][ T3538]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  109.528838][ T3538]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  109.528839][ T3538]  __might_resched.cold (kernel/sched/core.c:9234)
[  109.528844][ T3538]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  109.528848][ T3538]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  109.528853][ T3538]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  109.528855][ T3538]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  109.528861][ T3538]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  109.528864][ T3538]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  109.528867][ T3538]  put_chars (drivers/char/virtio_console.c:1176)
[  109.528870][ T3538]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  109.528871][ T3538]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  109.528874][ T3538]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  109.528880][ T3538]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  109.528888][ T3538]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  109.528890][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.528892][ T3538]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.528897][ T3538]  console_emit_next_record (kernel/printk/printk.c:3183)
[  109.528901][ T3538]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  109.528903][ T3538]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  109.528906][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.528908][ T3538]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.528912][ T3538]  console_flush_one_record (kernel/printk/printk.c:3268)
[  109.528916][ T3538]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  109.528918][ T3538]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.528923][ T3538]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  109.528926][ T3538]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  109.528928][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.528930][ T3538]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  109.528934][ T3538]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  109.528936][ T3538]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  109.528938][ T3538]  vprintk_emit (kernel/printk/printk.c:2479)
[  109.528941][ T3538]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  109.528950][ T3538]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  109.528955][ T3538]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  109.528960][ T3538]  _printk (kernel/printk/printk.c:2504)
[  109.528965][ T3538]  ? snapshot_read.cold (user.c:?)
[  109.528971][ T3538]  ? br_multicast_flood (??:?)
[  109.528975][ T3538]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  109.528977][ T3538]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  109.528978][ T3538]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  109.528982][ T3538]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  109.528987][ T3538]  br_init_port (net/bridge/br_stp_if.c:39)
[  109.528989][ T3538]  new_nbp (net/bridge/br_if.c:449)
[  109.528993][ T3538]  br_add_if (net/bridge/br_if.c:592)
[  109.528996][ T3538]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  109.528999][ T3538]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  109.529004][ T3538]  do_set_master (net/core/rtnetlink.c:3071)
[  109.529008][ T3538]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  109.529011][ T3538]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  109.529015][ T3538]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  109.529016][ T3538]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  109.529019][ T3538]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  109.529022][ T3538]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  109.529024][ T3538]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  109.529026][ T3538]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  109.529028][ T3538]  ? kasan_save_stack (mm/kasan/common.c:58)
[  109.529031][ T3538]  ? kasan_save_stack (mm/kasan/common.c:57)
[  109.529032][ T3538]  ? kasan_save_track (mm/kasan/common.c:78)
[  109.529034][ T3538]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  109.529036][ T3538]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.529038][ T3538]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  109.529041][ T3538]  ? ___sys_sendmsg (net/socket.c:2758)
[  109.529045][ T3538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.529047][ T3538]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  109.529049][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.529051][ T3538]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.529053][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.529054][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.529056][ T3538]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  109.529058][ T3538]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  109.529061][ T3538]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  109.529063][ T3538]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  109.529066][ T3538]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  109.529067][ T3538]  ? nla_get_range_signed (lib/nlattr.c:270)
[  109.529072][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.529075][ T3538]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  109.529080][ T3538]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  109.529085][ T3538]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.529087][ T3538]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.529092][ T3538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.529094][ T3538]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  109.529096][ T3538]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.529098][ T3538]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  109.529102][ T3538]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.529104][ T3538]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  109.529107][ T3538]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  109.529109][ T3538]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.529113][ T3538]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.529115][ T3538]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  109.529119][ T3538]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  109.529122][ T3538]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  109.529125][ T3538]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  109.529132][ T3538]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  109.529134][ T3538]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  109.529138][ T3538]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  109.529142][ T3538]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  109.529145][ T3538]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  109.529149][ T3538]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  109.529153][ T3538]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  109.529157][ T3538]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  109.529159][ T3538]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  109.529164][ T3538]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  109.529167][ T3538]  ____sys_sendmsg (net/socket.c:2713)
[  109.529169][ T3538]  ? copy_msghdr_from_user (net/socket.c:2650)
[  109.529172][ T3538]  ? sock_write_iter (net/socket.c:1269)
[  109.529173][ T3538]  ? move_addr_to_kernel (net/socket.c:258)
[  109.529181][ T3538]  ___sys_sendmsg (net/socket.c:2767)
[  109.529184][ T3538]  ? copy_msghdr_from_user (net/socket.c:2619)
[  109.529201][ T3538]  __sys_sendmsg (net/socket.c:2799)
[  109.529204][ T3538]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  109.529210][ T3538]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.529213][ T3538]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  109.529216][ T3538]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  109.529220][ T3538]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  109.529222][ T3538] RIP: 0033:0x7fb6e377e54e
[  109.529226][ T3538] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  109.529228][ T3538] RSP: 002b:00007ffdedf73120 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  109.529230][ T3538] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb6e377e54e
[  109.529232][ T3538] RDX: 0000000000000000 RSI: 00007ffdedf731d0 RDI: 0000000000000005
[  109.529233][ T3538] RBP: 00007ffdedf73130 R08: 0000000000000000 R09: 0000000000000000
[  109.529234][ T3538] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104bb
[  109.529235][ T3538] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdedf738a0
| [  111.115982][ T3624] softirqs last disabled at (17172): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  111.115985][ T3624] Preemption disabled at:
| [  111.115986][ T3624] vprintk_emit (kernel/printk/printk.c:2471)
| [  111.115995][ T3624] Tainted: [W]=WARN
[  111.115996][ T3624] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  111.115998][ T3624] Call Trace:
[  111.115999][ T3624]  <TASK>
[  111.116001][ T3624]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  111.116007][ T3624]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  111.116009][ T3624]  __might_resched.cold (kernel/sched/core.c:9234)
[  111.116013][ T3624]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  111.116017][ T3624]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  111.116022][ T3624]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  111.116023][ T3624]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  111.116030][ T3624]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  111.116033][ T3624]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  111.116036][ T3624]  put_chars (drivers/char/virtio_console.c:1176)
[  111.116039][ T3624]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  111.116040][ T3624]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  111.116043][ T3624]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  111.116049][ T3624]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  111.116056][ T3624]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  111.116059][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116061][ T3624]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  111.116065][ T3624]  console_emit_next_record (kernel/printk/printk.c:3183)
[  111.116069][ T3624]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  111.116071][ T3624]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  111.116074][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116076][ T3624]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  111.116079][ T3624]  console_flush_one_record (kernel/printk/printk.c:3268)
[  111.116084][ T3624]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  111.116086][ T3624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  111.116091][ T3624]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  111.116094][ T3624]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  111.116096][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116097][ T3624]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  111.116101][ T3624]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  111.116103][ T3624]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  111.116106][ T3624]  vprintk_emit (kernel/printk/printk.c:2479)
[  111.116109][ T3624]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  111.116110][ T3624]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  111.116113][ T3624]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  111.116117][ T3624]  _printk (kernel/printk/printk.c:2504)
[  111.116120][ T3624]  ? snapshot_read.cold (user.c:?)
[  111.116124][ T3624]  ? br_multicast_flood (??:?)
[  111.116127][ T3624]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  111.116128][ T3624]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  111.116130][ T3624]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  111.116134][ T3624]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  111.116138][ T3624]  br_init_port (net/bridge/br_stp_if.c:39)
[  111.116141][ T3624]  new_nbp (net/bridge/br_if.c:449)
[  111.116144][ T3624]  br_add_if (net/bridge/br_if.c:592)
[  111.116147][ T3624]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  111.116150][ T3624]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  111.116156][ T3624]  do_set_master (net/core/rtnetlink.c:3071)
[  111.116159][ T3624]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  111.116162][ T3624]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  111.116166][ T3624]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  111.116167][ T3624]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  111.116170][ T3624]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  111.116173][ T3624]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  111.116175][ T3624]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  111.116177][ T3624]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  111.116179][ T3624]  ? kasan_save_stack (mm/kasan/common.c:58)
[  111.116182][ T3624]  ? kasan_save_stack (mm/kasan/common.c:57)
[  111.116183][ T3624]  ? kasan_save_track (mm/kasan/common.c:78)
[  111.116184][ T3624]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  111.116186][ T3624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  111.116188][ T3624]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  111.116191][ T3624]  ? ___sys_sendmsg (net/socket.c:2758)
[  111.116195][ T3624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  111.116197][ T3624]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  111.116199][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116201][ T3624]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  111.116202][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116204][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116205][ T3624]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  111.116208][ T3624]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  111.116210][ T3624]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  111.116212][ T3624]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  111.116215][ T3624]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  111.116216][ T3624]  ? nla_get_range_signed (lib/nlattr.c:270)
[  111.116221][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116223][ T3624]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  111.116228][ T3624]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  111.116234][ T3624]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  111.116236][ T3624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  111.116240][ T3624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  111.116242][ T3624]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  111.116244][ T3624]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  111.116246][ T3624]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  111.116250][ T3624]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  111.116252][ T3624]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  111.116255][ T3624]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  111.116256][ T3624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  111.116260][ T3624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  111.116262][ T3624]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  111.116266][ T3624]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  111.116269][ T3624]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  111.116272][ T3624]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  111.116278][ T3624]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  111.116280][ T3624]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  111.116285][ T3624]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  111.116288][ T3624]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  111.116291][ T3624]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  111.116295][ T3624]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  111.116299][ T3624]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  111.116303][ T3624]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  111.116305][ T3624]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  111.116310][ T3624]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  111.116313][ T3624]  ____sys_sendmsg (net/socket.c:2713)
[  111.116315][ T3624]  ? copy_msghdr_from_user (net/socket.c:2650)
[  111.116317][ T3624]  ? sock_write_iter (net/socket.c:1269)
[  111.116319][ T3624]  ? move_addr_to_kernel (net/socket.c:258)
[  111.116326][ T3624]  ___sys_sendmsg (net/socket.c:2767)
[  111.116329][ T3624]  ? copy_msghdr_from_user (net/socket.c:2619)
[  111.116345][ T3624]  __sys_sendmsg (net/socket.c:2799)
[  111.116347][ T3624]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  111.116353][ T3624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  111.116356][ T3624]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  111.116359][ T3624]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  111.116362][ T3624]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  111.116365][ T3624] RIP: 0033:0x7fee44b7f54e
[  111.116369][ T3624] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  111.116370][ T3624] RSP: 002b:00007ffcf57d68a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  111.116373][ T3624] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fee44b7f54e
[  111.116375][ T3624] RDX: 0000000000000000 RSI: 00007ffcf57d6950 RDI: 0000000000000005
[  111.116376][ T3624] RBP: 00007ffcf57d68b0 R08: 0000000000000000 R09: 0000000000000000
[  111.116376][ T3624] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104bd
[  111.116377][ T3624] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf57d7020
| [  112.466547][ T3704] softirqs last disabled at (17540): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  112.466549][ T3704] Preemption disabled at:
| [  112.466550][ T3704] vprintk_emit (kernel/printk/printk.c:2471)
| [  112.466559][ T3704] Tainted: [W]=WARN
[  112.466560][ T3704] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  112.466561][ T3704] Call Trace:
[  112.466563][ T3704]  <TASK>
[  112.466565][ T3704]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  112.466570][ T3704]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  112.466572][ T3704]  __might_resched.cold (kernel/sched/core.c:9234)
[  112.466577][ T3704]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  112.466581][ T3704]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  112.466586][ T3704]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  112.466588][ T3704]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  112.466594][ T3704]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  112.466597][ T3704]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  112.466601][ T3704]  put_chars (drivers/char/virtio_console.c:1176)
[  112.466603][ T3704]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  112.466605][ T3704]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  112.466608][ T3704]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  112.466614][ T3704]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  112.466621][ T3704]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  112.466624][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466626][ T3704]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  112.466630][ T3704]  console_emit_next_record (kernel/printk/printk.c:3183)
[  112.466634][ T3704]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  112.466636][ T3704]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  112.466639][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466641][ T3704]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  112.466645][ T3704]  console_flush_one_record (kernel/printk/printk.c:3268)
[  112.466649][ T3704]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  112.466651][ T3704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466657][ T3704]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  112.466660][ T3704]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  112.466662][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466664][ T3704]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  112.466667][ T3704]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  112.466669][ T3704]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  112.466672][ T3704]  vprintk_emit (kernel/printk/printk.c:2479)
[  112.466675][ T3704]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  112.466677][ T3704]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  112.466682][ T3704]  _printk (kernel/printk/printk.c:2504)
[  112.466685][ T3704]  ? snapshot_read.cold (user.c:?)
[  112.466689][ T3704]  ? br_multicast_flood (??:?)
[  112.466692][ T3704]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  112.466694][ T3704]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  112.466695][ T3704]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  112.466699][ T3704]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  112.466704][ T3704]  br_init_port (net/bridge/br_stp_if.c:39)
[  112.466707][ T3704]  new_nbp (net/bridge/br_if.c:449)
[  112.466711][ T3704]  br_add_if (net/bridge/br_if.c:592)
[  112.466714][ T3704]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  112.466717][ T3704]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  112.466722][ T3704]  do_set_master (net/core/rtnetlink.c:3071)
[  112.466726][ T3704]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  112.466729][ T3704]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  112.466733][ T3704]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  112.466734][ T3704]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  112.466737][ T3704]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  112.466740][ T3704]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  112.466742][ T3704]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  112.466744][ T3704]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  112.466747][ T3704]  ? kasan_save_stack (mm/kasan/common.c:58)
[  112.466749][ T3704]  ? kasan_save_stack (mm/kasan/common.c:57)
[  112.466750][ T3704]  ? kasan_save_track (mm/kasan/common.c:78)
[  112.466752][ T3704]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  112.466754][ T3704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466756][ T3704]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  112.466759][ T3704]  ? ___sys_sendmsg (net/socket.c:2758)
[  112.466763][ T3704]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  112.466765][ T3704]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  112.466767][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466769][ T3704]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  112.466770][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466772][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466773][ T3704]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  112.466776][ T3704]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  112.466778][ T3704]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  112.466780][ T3704]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  112.466783][ T3704]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  112.466784][ T3704]  ? nla_get_range_signed (lib/nlattr.c:270)
[  112.466789][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466791][ T3704]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  112.466797][ T3704]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  112.466802][ T3704]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  112.466804][ T3704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466808][ T3704]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  112.466810][ T3704]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  112.466813][ T3704]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  112.466815][ T3704]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  112.466818][ T3704]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  112.466820][ T3704]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  112.466823][ T3704]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  112.466825][ T3704]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466829][ T3704]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  112.466831][ T3704]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  112.466835][ T3704]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  112.466838][ T3704]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  112.466841][ T3704]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  112.466847][ T3704]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  112.466849][ T3704]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  112.466854][ T3704]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  112.466858][ T3704]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  112.466860][ T3704]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  112.466865][ T3704]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  112.466869][ T3704]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  112.466872][ T3704]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  112.466874][ T3704]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  112.466879][ T3704]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  112.466882][ T3704]  ____sys_sendmsg (net/socket.c:2713)
[  112.466884][ T3704]  ? copy_msghdr_from_user (net/socket.c:2650)
[  112.466887][ T3704]  ? sock_write_iter (net/socket.c:1269)
[  112.466888][ T3704]  ? move_addr_to_kernel (net/socket.c:258)
[  112.466896][ T3704]  ___sys_sendmsg (net/socket.c:2767)
[  112.466898][ T3704]  ? copy_msghdr_from_user (net/socket.c:2619)
[  112.466914][ T3704]  __sys_sendmsg (net/socket.c:2799)
[  112.466917][ T3704]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  112.466923][ T3704]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466927][ T3704]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  112.466929][ T3704]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  112.466932][ T3704]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  112.466934][ T3704] RIP: 0033:0x7f861503354e
[  112.466938][ T3704] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  112.466940][ T3704] RSP: 002b:00007ffd4d5731b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  112.466948][ T3704] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f861503354e
[  112.466950][ T3704] RDX: 0000000000000000 RSI: 00007ffd4d573260 RDI: 0000000000000005
[  112.466951][ T3704] RBP: 00007ffd4d5731c0 R08: 0000000000000000 R09: 0000000000000000
[  112.466953][ T3704] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9104be
[  112.466954][ T3704] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4d573930
| [  113.483155][   T12] softirqs last disabled at (1608128): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [  113.483158][   T12] Preemption disabled at:
| [  113.483158][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [  113.483168][   T12] Tainted: [W]=WARN
[  113.483169][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  113.483171][   T12] Workqueue: netns cleanup_net
[  113.483174][   T12] Call Trace:
[  113.483176][   T12]  <TASK>
[  113.483178][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  113.483184][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  113.483186][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[  113.483191][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  113.483195][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  113.483199][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  113.483201][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  113.483208][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  113.483211][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  113.483215][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[  113.483217][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  113.483219][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  113.483222][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  113.483225][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  113.483231][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  113.483235][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.483240][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  113.483244][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.483249][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[  113.483253][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  113.483255][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  113.483258][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.483260][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  113.483264][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[  113.483269][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  113.483271][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.483276][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  113.483279][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  113.483281][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.483283][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  113.483287][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  113.483289][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  113.483292][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[  113.483295][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  113.483296][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[  113.483298][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  113.483300][   T12]  ? kthread (kernel/kthread.c:436)
[  113.483302][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  113.483305][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  113.483310][   T12]  _printk (kernel/printk/printk.c:2504)
[  113.483314][   T12]  ? snapshot_read.cold (user.c:?)
[  113.483318][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[  113.483322][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[  113.483326][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[  113.483329][   T12]  ? netdev_notice (net/core/dev.c:13194)
[  113.483334][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.483336][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[  113.483338][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[  113.483341][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  113.483343][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[  113.483347][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[  113.483351][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[  113.483355][   T12]  ? __up_write (kernel/locking/rwsem.c:1415)
[  113.483356][   T12]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[  113.483360][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[  113.483364][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[  113.483367][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[  113.483371][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  113.483375][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[  113.483377][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  113.483380][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  113.483385][   T12]  cleanup_net (net/core/net_namespace.c:706)
[  113.483388][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  113.483392][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  113.483394][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.483398][   T12]  process_one_work (kernel/workqueue.c:3387)
[  113.483405][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  113.483408][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  113.483416][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  113.483427][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  113.483429][   T12]  kthread (kernel/kthread.c:436)
[  113.483431][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  113.483435][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  113.483438][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  113.483441][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  113.483445][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  113.483448][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  113.483452][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  113.518828][    C0]
| [  113.518828][    C0]
| [  113.518828][    C0] stack backtrace:
| [  113.518834][    C0] Tainted: [W]=WARN
[  113.518835][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  113.518837][    C0] Call Trace:
[  113.518838][    C0]  <IRQ>
[  113.518839][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  113.518843][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[  113.518846][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[  113.518847][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[  113.518850][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[  113.518852][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[  113.518854][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[  113.518856][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  113.518858][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[  113.518860][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.518862][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  113.518864][    C0]  console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[  113.518866][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[  113.518868][    C0]  vprintk_emit (kernel/printk/printk.c:2478)
[  113.518869][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  113.518871][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[  113.518873][    C0]  _printk (kernel/printk/printk.c:2504)
[  113.518875][    C0]  ? snapshot_read.cold (user.c:?)
[  113.518877][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[  113.518879][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  113.518881][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[  113.518883][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[  113.518885][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[  113.518886][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[  113.518888][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[  113.518890][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[  113.518893][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  113.518895][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  113.518897][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  113.518899][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[  113.518901][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[  113.518903][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[  113.518905][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.518908][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  113.518910][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[  113.518912][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[  113.518914][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.518916][    C0]  handle_softirqs (kernel/softirq.c:645)
[  113.518917][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  113.518919][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[  113.518921][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[  113.518923][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[  113.518924][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[  113.518926][    C0]  </IRQ>
[  113.518927][    C0]  <TASK>
[  113.518927][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[  113.518929][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 12) kernel/locking/spinlock.c:221 (discriminator 12))
[  113.518931][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 41 80 78 fd 48 89 df e8 49 d6 78 fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 d0 9e 6a fd 65 48 83 3d af ab 65 02 00 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 41 80 78 fd       	call   0xfffffffffd788054
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 49 d6 78 fd       	call   0xfffffffffd78d664
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 d0 9e 6a fd       	call   0xfffffffffd6a9f04
  34:	65 48 83 3d af ab 65 	cmpq   $0x0,%gs:0x265abaf(%rip)        # 0x265abec
  3b:	02 00 
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 d0 9e 6a fd       	call   0xfffffffffd6a9eda
   a:	65 48 83 3d af ab 65 	cmpq   $0x0,%gs:0x265abaf(%rip)        # 0x265abc2
  11:	02 00 
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[  113.518933][    C0] RSP: 0018:ffa00000081e7d10 EFLAGS: 00000246
[  113.518935][    C0] RAX: 0000000000000082 RBX: ff11000001041440 RCX: ffffffffa4de1483
[  113.518937][    C0] RDX: ff1100000ef24740 RSI: ffffffffa5711027 RDI: ffffffffa50949e0
[  113.518937][    C0] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000000
[  113.518938][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100000c977688
[  113.518939][    C0] R13: 0000000000000000 R14: ffa00000081e7d58 R15: ff11000013df4dc0
[  113.518941][    C0]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[  113.518948][    C0]  qlist_free_all (mm/kasan/quarantine.c:163 (discriminator 2) mm/kasan/quarantine.c:179 (discriminator 2))
[  113.518951][    C0]  kasan_quarantine_reduce (mm/kasan/quarantine.c:286)
[  113.518954][    C0]  __kasan_slab_alloc (mm/kasan/common.c:350)
[  113.518956][    C0]  kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[  113.518958][    C0]  ? do_getname.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:187 (discriminator 11))
[  113.518962][    C0]  do_getname.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:187 (discriminator 11))
[  113.518963][    C0]  do_faccessat (./include/linux/fs.h:2587 fs/open.c:486)
[  113.518966][    C0]  ? generic_file_open (./include/linux/fs.h:1143 (discriminator 4))
[  113.518968][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  113.518970][    C0]  __x64_sys_access (fs/open.c:547 fs/open.c:545 fs/open.c:545)
[  113.518972][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  113.518973][    C0]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[  113.518975][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  113.518977][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  113.518978][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  113.518980][    C0] RIP: 0033:0x7efde967840b
[  113.518982][    C0] Code: 0f 1e fa 8b 87 10 01 00 00 89 06 31 c0 c3 90 f3 0f 1e fa 89 b7 10 01 00 00 31 c0 c3 0f 1f 00 f3 0f 1e fa b8 15 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 b9 a9 10 00 f7 d8
All code
========
   0:	0f 1e fa             	nop    %edx
   3:	8b 87 10 01 00 00    	mov    0x110(%rdi),%eax
   9:	89 06                	mov    %eax,(%rsi)
   b:	31 c0                	xor    %eax,%eax
   d:	c3                   	ret
   e:	90                   	nop
   f:	f3 0f 1e fa          	endbr64
  13:	89 b7 10 01 00 00    	mov    %esi,0x110(%rdi)
  19:	31 c0                	xor    %eax,%eax
  1b:	c3                   	ret
  1c:	0f 1f 00             	nopl   (%rax)
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 15 00 00 00       	mov    $0x15,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 05                	ja     0x37
  32:	c3                   	ret
  33:	0f 1f 40 00          	nopl   0x0(%rax)
  37:	48 8b 15 b9 a9 10 00 	mov    0x10a9b9(%rip),%rdx        # 0x10a9f7
  3e:	f7 d8                	neg    %eax

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 05                	ja     0xd
   8:	c3                   	ret
   9:	0f 1f 40 00          	nopl   0x0(%rax)
   d:	48 8b 15 b9 a9 10 00 	mov    0x10a9b9(%rip),%rdx        # 0x10a9cd
  14:	f7 d8                	neg    %eax
[  113.518983][    C0] RSP: 002b:00007ffdb28abb38 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
[  113.518985][    C0] RAX: ffffffffffffffda RBX: 00007efde939eb78 RCX: 00007efde967840b
[  113.518986][    C0] RDX: 000000000000000f RSI: 0000000000000000 RDI: 00007efde9855271
[  113.518986][    C0] RBP: 00007ffdb28abba0 R08: 000000003eaa1680 R09: 00000000000001e0
[  113.518987][    C0] R10: 00000000000001e1 R11: 0000000000000246 R12: 0000000000000000


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_trylock_spinning