======================================
| [   11.704645][  T254] softirqs last disabled at (54365): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.704647][  T254] Preemption disabled at:
| [   11.704648][  T254] 0x0
| [   11.704658][  T254] Tainted: [W]=WARN
[   11.704659][  T254] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.704660][  T254] Call Trace:
[   11.704662][  T254]  <TASK>
[   11.704663][  T254]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.704670][  T254]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.704674][  T254]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.704678][  T254]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.704686][  T254]  __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))
[   11.704688][  T254]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.704695][  T254]  ? 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)
[   11.704697][  T254]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.704701][  T254]  put_chars (drivers/char/virtio_console.c:1176)
[   11.704704][  T254]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.704705][  T254]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.704708][  T254]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.704714][  T254]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.704721][  T254]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.704724][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.704726][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.704729][  T254]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.704733][  T254]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.704735][  T254]  ? 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))
[   11.704738][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.704740][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.704744][  T254]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.704748][  T254]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.704750][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.704755][  T254]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.704758][  T254]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.704760][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.704761][  T254]  ? 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)
[   11.704765][  T254]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.704767][  T254]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.704770][  T254]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.704773][  T254]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.704775][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.704779][  T254]  _printk (kernel/printk/printk.c:2504)
[   11.704783][  T254]  ? snapshot_read.cold (user.c:?)
[   11.704785][  T254]  ? 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)
[   11.704788][  T254]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.704792][  T254]  ? 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)
[   11.704795][  T254]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.704798][  T254]  ? exit_notify (kernel/exit.c:780)
[   11.704799][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.704802][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.704806][  T254]  do_group_exit (kernel/exit.c:1151)
[   11.704808][  T254]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.704810][  T254]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.704813][  T254]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.704816][  T254]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.704819][  T254]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.704821][  T254] RIP: 0033:0x7fb50fd741b8
[   11.704824][  T254] Code: Unable to access opcode bytes at 0x7fb50fd7418e.

Code starting with the faulting instruction
===========================================
[   11.704825][  T254] RSP: 002b:00007ffede506e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.704827][  T254] RAX: ffffffffffffffda RBX: 00007fb50fea4f88 RCX: 00007fb50fd741b8
[   11.704828][  T254] RDX: 00007fb50fabefc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.704829][  T254] RBP: 00007ffede506ef0 R08: 0000000000000000 R09: 0000000000008010
[   11.704830][  T254] R10: 00007ffede506cb0 R11: 0000000000000246 R12: 0000000000000001
[   11.704831][  T254] R13: 0000000000000000 R14: 00007fb50fea3680 R15: 00007fb50fea4fa0
| [   12.788058][  T273] softirqs last disabled at (41700): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.788061][  T273] Preemption disabled at:
| [   12.788061][  T273] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.788070][  T273] Tainted: [W]=WARN
[   12.788071][  T273] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.788072][  T273] Call Trace:
[   12.788074][  T273]  <TASK>
[   12.788075][  T273]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.788081][  T273]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.788083][  T273]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.788087][  T273]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.788092][  T273]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.788096][  T273]  __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))
[   12.788098][  T273]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.788104][  T273]  ? 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)
[   12.788107][  T273]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.788111][  T273]  put_chars (drivers/char/virtio_console.c:1176)
[   12.788113][  T273]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.788119][  T273]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.788126][  T273]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.788129][  T273]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.788134][  T273]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.788138][  T273]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.788139][  T273]  ? 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))
[   12.788143][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788145][  T273]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.788149][  T273]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.788153][  T273]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.788155][  T273]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.788160][  T273]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.788163][  T273]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.788165][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788166][  T273]  ? 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)
[   12.788170][  T273]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.788172][  T273]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.788174][  T273]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.788177][  T273]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.788180][  T273]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   12.788185][  T273]  _printk (kernel/printk/printk.c:2504)
[   12.788188][  T273]  ? snapshot_read.cold (user.c:?)
[   12.788190][  T273]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.788192][  T273]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.788195][  T273]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.788197][  T273]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.788201][  T273]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.788204][  T273]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.788206][  T273]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.788209][  T273]  ? netdev_notice (net/core/dev.c:13194)
[   12.788211][  T273]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.788214][  T273]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.788217][  T273]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.788220][  T273]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.788222][  T273]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.788224][  T273]  ? register_netdev (net/core/dev.c:11618)
[   12.788226][  T273]  ? 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))
[   12.788231][  T273]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.788233][  T273]  ? __kernel_text_address (kernel/extable.c:79)
[   12.788236][  T273]  ? write_profile (profile.c:?)
[   12.788239][  T273]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.788245][  T273]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.788248][  T273]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.788250][  T273]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.788252][  T273]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.788253][  T273]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.788257][  T273]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.788259][  T273]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.788260][  T273]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.788263][  T273]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.788265][  T273]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.788266][  T273]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.788267][  T273]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.788269][  T273]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.788271][  T273]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.788274][  T273]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.788278][  T273]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.788280][  T273]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.788282][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788284][  T273]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.788285][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788287][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788288][  T273]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.788290][  T273]  ? __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)
[   12.788291][  T273]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.788293][  T273]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.788296][  T273]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.788298][  T273]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.788302][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788304][  T273]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.788309][  T273]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.788314][  T273]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.788316][  T273]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.788321][  T273]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.788322][  T273]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.788324][  T273]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.788326][  T273]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.788330][  T273]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.788331][  T273]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.788334][  T273]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.788336][  T273]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.788340][  T273]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.788342][  T273]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.788345][  T273]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.788348][  T273]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.788351][  T273]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.788357][  T273]  ? 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))
[   12.788359][  T273]  ? 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))
[   12.788363][  T273]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.788367][  T273]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.788370][  T273]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.788374][  T273]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.788377][  T273]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.788381][  T273]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.788383][  T273]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.788388][  T273]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.788390][  T273]  ____sys_sendmsg (net/socket.c:2713)
[   12.788393][  T273]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.788395][  T273]  ? sock_write_iter (net/socket.c:1269)
[   12.788396][  T273]  ? move_addr_to_kernel (net/socket.c:258)
[   12.788403][  T273]  ___sys_sendmsg (net/socket.c:2767)
[   12.788406][  T273]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.788421][  T273]  __sys_sendmsg (net/socket.c:2799)
[   12.788424][  T273]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.788430][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.788433][  T273]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.788436][  T273]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.788439][  T273]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.788441][  T273] RIP: 0033:0x7fdfb6f8954e
[   12.788445][  T273] 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
[   12.788447][  T273] RSP: 002b:00007ffe4fca1aa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.788449][  T273] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fdfb6f8954e
[   12.788450][  T273] RDX: 0000000000000000 RSI: 00007ffe4fca1b50 RDI: 0000000000000005
[   12.788451][  T273] RBP: 00007ffe4fca1ab0 R08: 0000000000000000 R09: 0000000000000000
[   12.788452][  T273] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e88
[   12.788453][  T273] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4fca2210
| [   17.749376][   T70] softirqs last disabled at (24256): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   17.749378][   T70] Preemption disabled at:
| [   17.749378][   T70] 0x0
| [   17.749389][   T70] Tainted: [W]=WARN
[   17.749390][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.749392][   T70] Workqueue: netns cleanup_net
[   17.749395][   T70] Call Trace:
[   17.749397][   T70]  <TASK>
[   17.749400][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.749406][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.749411][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.749415][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.749420][   T70]  __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))
[   17.749421][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.749428][   T70]  ? 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)
[   17.749431][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.749435][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   17.749437][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.749444][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.749452][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.749455][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.749459][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.749464][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.749466][   T70]  ? 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))
[   17.749469][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.749472][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.749476][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.749480][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.749482][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.749487][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.749490][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.749492][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.749494][   T70]  ? 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)
[   17.749498][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.749499][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.749502][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.749505][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.749507][   T70]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.749512][   T70]  _printk (kernel/printk/printk.c:2504)
[   17.749516][   T70]  ? snapshot_read.cold (user.c:?)
[   17.749526][   T70]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   17.749531][   T70]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   17.749534][   T70]  br_device_event (net/bridge/br.c:111)
[   17.749536][   T70]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   17.749540][   T70]  ? packet_sendmsg_spkt (af_packet.c:?)
[   17.749546][   T70]  notifier_call_chain (kernel/notifier.c:85)
[   17.749552][   T70]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   17.749555][   T70]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   17.749559][   T70]  ? __dev_close_many (net/core/dev.c:1804)
[   17.749562][   T70]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   17.749566][   T70]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   17.749569][   T70]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.749571][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.749572][   T70]  ? kthread (kernel/kthread.c:436)
[   17.749574][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   17.749577][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   17.749580][   T70]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   17.749588][   T70]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   17.749591][   T70]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   17.749594][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.749596][   T70]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   17.749600][   T70]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.749604][   T70]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.749607][   T70]  ? netns_install (./include/linux/ns_common.h:26)
[   17.749609][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.749612][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   17.749617][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   17.749620][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.749624][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.749626][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.749629][   T70]  process_one_work (kernel/workqueue.c:3387)
[   17.749636][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   17.749639][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.749647][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.749651][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.749653][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   17.749656][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.749659][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.749661][   T70]  kthread (kernel/kthread.c:436)
[   17.749662][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.749666][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.749669][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.749671][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   17.749675][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.749678][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.749681][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.876439][  T396] softirqs last disabled at (43796): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   20.876442][  T396] Preemption disabled at:
| [   20.876442][  T396] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.876451][  T396] Tainted: [W]=WARN
[   20.876452][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.876454][  T396] Call Trace:
[   20.876455][  T396]  <TASK>
[   20.876457][  T396]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.876462][  T396]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.876464][  T396]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.876468][  T396]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.876473][  T396]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.876477][  T396]  __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))
[   20.876479][  T396]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.876485][  T396]  ? 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)
[   20.876488][  T396]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.876492][  T396]  put_chars (drivers/char/virtio_console.c:1176)
[   20.876494][  T396]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.876500][  T396]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.876507][  T396]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.876510][  T396]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.876515][  T396]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.876518][  T396]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.876520][  T396]  ? 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))
[   20.876527][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876530][  T396]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.876534][  T396]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.876538][  T396]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.876539][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.876544][  T396]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.876547][  T396]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.876549][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876551][  T396]  ? 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)
[   20.876554][  T396]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.876556][  T396]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.876559][  T396]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.876562][  T396]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.876564][  T396]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   20.876569][  T396]  _printk (kernel/printk/printk.c:2504)
[   20.876573][  T396]  ? snapshot_read.cold (user.c:?)
[   20.876574][  T396]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.876577][  T396]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.876580][  T396]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.876582][  T396]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.876585][  T396]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.876588][  T396]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.876590][  T396]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.876593][  T396]  ? netdev_notice (net/core/dev.c:13194)
[   20.876596][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.876599][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.876601][  T396]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   20.876605][  T396]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.876607][  T396]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   20.876609][  T396]  ? register_netdev (net/core/dev.c:11618)
[   20.876610][  T396]  ? 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))
[   20.876615][  T396]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   20.876618][  T396]  ? __kernel_text_address (kernel/extable.c:79)
[   20.876620][  T396]  ? write_profile (profile.c:?)
[   20.876624][  T396]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   20.876629][  T396]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.876633][  T396]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.876635][  T396]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.876636][  T396]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.876638][  T396]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.876641][  T396]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.876643][  T396]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.876644][  T396]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.876647][  T396]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.876648][  T396]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.876650][  T396]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.876651][  T396]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.876653][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.876655][  T396]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   20.876658][  T396]  ? ___sys_sendmsg (net/socket.c:2758)
[   20.876661][  T396]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.876663][  T396]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.876666][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876667][  T396]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.876669][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876670][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876672][  T396]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.876674][  T396]  ? __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)
[   20.876675][  T396]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.876677][  T396]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.876680][  T396]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.876681][  T396]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.876686][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876688][  T396]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.876693][  T396]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.876698][  T396]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.876700][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.876704][  T396]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.876706][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.876708][  T396]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.876710][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.876713][  T396]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.876715][  T396]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.876718][  T396]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.876719][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.876724][  T396]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.876726][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.876729][  T396]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.876732][  T396]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.876738][  T396]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.876744][  T396]  ? 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))
[   20.876747][  T396]  ? 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))
[   20.876751][  T396]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.876755][  T396]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.876758][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.876762][  T396]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.876766][  T396]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.876769][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.876771][  T396]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.876776][  T396]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.876779][  T396]  ____sys_sendmsg (net/socket.c:2713)
[   20.876781][  T396]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.876783][  T396]  ? sock_write_iter (net/socket.c:1269)
[   20.876784][  T396]  ? move_addr_to_kernel (net/socket.c:258)
[   20.876792][  T396]  ___sys_sendmsg (net/socket.c:2767)
[   20.876794][  T396]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.876809][  T396]  __sys_sendmsg (net/socket.c:2799)
[   20.876812][  T396]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.876818][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.876821][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.876824][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.876827][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.876829][  T396] RIP: 0033:0x7fbaca79954e
[   20.876833][  T396] 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
[   20.876834][  T396] RSP: 002b:00007ffca35b0c60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.876837][  T396] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fbaca79954e
[   20.876838][  T396] RDX: 0000000000000000 RSI: 00007ffca35b0d10 RDI: 0000000000000005
[   20.876839][  T396] RBP: 00007ffca35b0c70 R08: 0000000000000000 R09: 0000000000000000
[   20.876840][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e90
[   20.876841][  T396] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca35b13d0
| [   21.976887][  T418] softirqs last disabled at (28090): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.976890][  T418] Preemption disabled at:
| [   21.976890][  T418] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.976899][  T418] Tainted: [W]=WARN
[   21.976900][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.976902][  T418] Call Trace:
[   21.976903][  T418]  <TASK>
[   21.976905][  T418]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.976911][  T418]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.976912][  T418]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.976917][  T418]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.976921][  T418]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.976925][  T418]  __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))
[   21.976927][  T418]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.976934][  T418]  ? 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)
[   21.976936][  T418]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.976940][  T418]  put_chars (drivers/char/virtio_console.c:1176)
[   21.976942][  T418]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.976943][  T418]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.976947][  T418]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.976952][  T418]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.976959][  T418]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.976962][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.976964][  T418]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.976968][  T418]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.976972][  T418]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.976974][  T418]  ? 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))
[   21.976977][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.976979][  T418]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.976983][  T418]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.976987][  T418]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.976989][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.976994][  T418]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.976997][  T418]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.976999][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.977001][  T418]  ? 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)
[   21.977004][  T418]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.977006][  T418]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.977009][  T418]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.977012][  T418]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.977014][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.977017][  T418]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.977020][  T418]  _printk (kernel/printk/printk.c:2504)
[   21.977023][  T418]  ? snapshot_read.cold (user.c:?)
[   21.977027][  T418]  ? br_multicast_flood (??:?)
[   21.977030][  T418]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.977032][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.977033][  T418]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.977037][  T418]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.977041][  T418]  br_init_port (net/bridge/br_stp_if.c:39)
[   21.977044][  T418]  new_nbp (net/bridge/br_if.c:449)
[   21.977047][  T418]  br_add_if (net/bridge/br_if.c:592)
[   21.977050][  T418]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   21.977053][  T418]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.977059][  T418]  do_set_master (net/core/rtnetlink.c:3071)
[   21.977062][  T418]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.977065][  T418]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.977069][  T418]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.977070][  T418]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.977073][  T418]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.977076][  T418]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.977078][  T418]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.977080][  T418]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.977082][  T418]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.977085][  T418]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.977086][  T418]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.977087][  T418]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.977089][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.977091][  T418]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.977094][  T418]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.977098][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.977100][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.977102][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.977104][  T418]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.977105][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.977106][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.977108][  T418]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.977110][  T418]  ? __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)
[   21.977113][  T418]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.977115][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.977118][  T418]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.977119][  T418]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.977124][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.977126][  T418]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.977132][  T418]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.977137][  T418]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.977139][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.977143][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.977145][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.977148][  T418]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.977149][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.977153][  T418]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.977155][  T418]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.977158][  T418]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.977159][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.977164][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.977166][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.977169][  T418]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.977172][  T418]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.977175][  T418]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.977182][  T418]  ? 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))
[   21.977184][  T418]  ? 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))
[   21.977188][  T418]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.977192][  T418]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.977195][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.977199][  T418]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.977203][  T418]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.977207][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.977208][  T418]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.977214][  T418]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.977217][  T418]  ____sys_sendmsg (net/socket.c:2713)
[   21.977219][  T418]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.977221][  T418]  ? sock_write_iter (net/socket.c:1269)
[   21.977223][  T418]  ? move_addr_to_kernel (net/socket.c:258)
[   21.977230][  T418]  ___sys_sendmsg (net/socket.c:2767)
[   21.977233][  T418]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.977249][  T418]  __sys_sendmsg (net/socket.c:2799)
[   21.977251][  T418]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.977258][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.977261][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.977263][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.977266][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.977269][  T418] RIP: 0033:0x7f3d8875a54e
[   21.977272][  T418] 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
[   21.977274][  T418] RSP: 002b:00007ffd701f21d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.977277][  T418] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3d8875a54e
[   21.977278][  T418] RDX: 0000000000000000 RSI: 00007ffd701f2280 RDI: 0000000000000005
[   21.977279][  T418] RBP: 00007ffd701f21e0 R08: 0000000000000000 R09: 0000000000000000
[   21.977280][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e91
[   21.977280][  T418] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd701f2950
| [   26.686040][   T70] softirqs last disabled at (195490): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   26.686043][   T70] Preemption disabled at:
| [   26.686043][   T70] 0x0
| [   26.686053][   T70] Tainted: [W]=WARN
[   26.686054][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.686055][   T70] Workqueue: netns cleanup_net
[   26.686059][   T70] Call Trace:
[   26.686060][   T70]  <TASK>
[   26.686062][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.686068][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.686072][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.686076][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.686080][   T70]  __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))
[   26.686082][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.686088][   T70]  ? 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)
[   26.686090][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.686094][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   26.686096][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.686103][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.686111][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.686114][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.686119][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.686123][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.686125][   T70]  ? 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))
[   26.686128][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.686131][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.686135][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.686139][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.686141][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.686147][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.686149][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.686151][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.686153][   T70]  ? 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)
[   26.686157][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.686159][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.686161][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.686165][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.686166][   T70]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.686168][   T70]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.686170][   T70]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.686175][   T70]  _printk (kernel/printk/printk.c:2504)
[   26.686178][   T70]  ? snapshot_read.cold (user.c:?)
[   26.686186][   T70]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.686191][   T70]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   26.686194][   T70]  br_device_event (net/bridge/br.c:111)
[   26.686196][   T70]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.686200][   T70]  ? packet_sendmsg_spkt (af_packet.c:?)
[   26.686206][   T70]  notifier_call_chain (kernel/notifier.c:85)
[   26.686211][   T70]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   26.686215][   T70]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   26.686218][   T70]  ? __dev_close_many (net/core/dev.c:1804)
[   26.686221][   T70]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   26.686225][   T70]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   26.686228][   T70]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   26.686230][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.686232][   T70]  ? kthread (kernel/kthread.c:436)
[   26.686234][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   26.686237][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   26.686240][   T70]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   26.686247][   T70]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   26.686251][   T70]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   26.686253][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.686256][   T70]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.686260][   T70]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   26.686264][   T70]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.686267][   T70]  ? netns_install (./include/linux/ns_common.h:26)
[   26.686268][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.686271][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   26.686276][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   26.686280][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.686284][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.686286][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.686289][   T70]  process_one_work (kernel/workqueue.c:3387)
[   26.686296][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   26.686299][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.686307][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.686311][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.686313][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.686316][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.686319][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.686321][   T70]  kthread (kernel/kthread.c:436)
[   26.686323][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.686326][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.686329][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.686331][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   26.686335][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.686338][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.686341][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.298077][  T522] softirqs last disabled at (33106): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   29.298080][  T522] Preemption disabled at:
| [   29.298080][  T522] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.298088][  T522] Tainted: [W]=WARN
[   29.298089][  T522] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.298091][  T522] Call Trace:
[   29.298093][  T522]  <TASK>
[   29.298094][  T522]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.298100][  T522]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.298102][  T522]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.298106][  T522]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.298111][  T522]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.298115][  T522]  __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))
[   29.298117][  T522]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.298124][  T522]  ? 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)
[   29.298126][  T522]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.298130][  T522]  put_chars (drivers/char/virtio_console.c:1176)
[   29.298132][  T522]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.298138][  T522]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.298146][  T522]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.298149][  T522]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.298153][  T522]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.298157][  T522]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.298159][  T522]  ? 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))
[   29.298162][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298165][  T522]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.298169][  T522]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.298172][  T522]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.298174][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.298179][  T522]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.298182][  T522]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.298184][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298186][  T522]  ? 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)
[   29.298189][  T522]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.298191][  T522]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.298193][  T522]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.298196][  T522]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.298199][  T522]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   29.298204][  T522]  _printk (kernel/printk/printk.c:2504)
[   29.298207][  T522]  ? snapshot_read.cold (user.c:?)
[   29.298209][  T522]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.298211][  T522]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.298214][  T522]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.298216][  T522]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.298220][  T522]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.298223][  T522]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.298225][  T522]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.298227][  T522]  ? netdev_notice (net/core/dev.c:13194)
[   29.298230][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.298233][  T522]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.298236][  T522]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   29.298239][  T522]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.298241][  T522]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   29.298243][  T522]  ? register_netdev (net/core/dev.c:11618)
[   29.298244][  T522]  ? 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))
[   29.298250][  T522]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   29.298252][  T522]  ? __kernel_text_address (kernel/extable.c:79)
[   29.298255][  T522]  ? write_profile (profile.c:?)
[   29.298259][  T522]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   29.298264][  T522]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.298267][  T522]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.298269][  T522]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.298271][  T522]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.298273][  T522]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.298276][  T522]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.298278][  T522]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.298279][  T522]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.298282][  T522]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.298283][  T522]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.298285][  T522]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.298286][  T522]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.298288][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.298290][  T522]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   29.298293][  T522]  ? ___sys_sendmsg (net/socket.c:2758)
[   29.298297][  T522]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.298298][  T522]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.298301][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298303][  T522]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.298304][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298305][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298307][  T522]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.298309][  T522]  ? __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)
[   29.298310][  T522]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.298312][  T522]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.298315][  T522]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.298316][  T522]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.298320][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298323][  T522]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.298328][  T522]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.298333][  T522]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.298334][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.298339][  T522]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.298341][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.298342][  T522]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.298344][  T522]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.298348][  T522]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.298350][  T522]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.298353][  T522]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.298354][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.298359][  T522]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.298360][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.298364][  T522]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.298367][  T522]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.298370][  T522]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.298376][  T522]  ? 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))
[   29.298378][  T522]  ? 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))
[   29.298382][  T522]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.298386][  T522]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.298388][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.298392][  T522]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.298396][  T522]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.298400][  T522]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.298401][  T522]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   29.298407][  T522]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   29.298409][  T522]  ____sys_sendmsg (net/socket.c:2713)
[   29.298412][  T522]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.298414][  T522]  ? sock_write_iter (net/socket.c:1269)
[   29.298415][  T522]  ? move_addr_to_kernel (net/socket.c:258)
[   29.298422][  T522]  ___sys_sendmsg (net/socket.c:2767)
[   29.298425][  T522]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.298440][  T522]  __sys_sendmsg (net/socket.c:2799)
[   29.298443][  T522]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.298449][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.298452][  T522]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.298455][  T522]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.298457][  T522]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.298460][  T522] RIP: 0033:0x7f4ad147a54e
[   29.298463][  T522] 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
[   29.298465][  T522] RSP: 002b:00007ffcf1c793e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.298467][  T522] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f4ad147a54e
[   29.298469][  T522] RDX: 0000000000000000 RSI: 00007ffcf1c79490 RDI: 0000000000000005
[   29.298470][  T522] RBP: 00007ffcf1c793f0 R08: 0000000000000000 R09: 0000000000000000
[   29.298470][  T522] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e98
[   29.298471][  T522] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf1c79b50
| [   35.115462][  T582] softirqs last disabled at (36922): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   35.115465][  T582] Preemption disabled at:
| [   35.115465][  T582] vprintk_emit (kernel/printk/printk.c:2471)
| [   35.115473][  T582] Tainted: [W]=WARN
[   35.115474][  T582] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.115476][  T582] Call Trace:
[   35.115478][  T582]  <TASK>
[   35.115479][  T582]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.115485][  T582]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   35.115486][  T582]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.115491][  T582]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.115495][  T582]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.115499][  T582]  __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))
[   35.115501][  T582]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.115507][  T582]  ? 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)
[   35.115510][  T582]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.115514][  T582]  put_chars (drivers/char/virtio_console.c:1176)
[   35.115516][  T582]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.115522][  T582]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.115532][  T582]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.115535][  T582]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.115540][  T582]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.115544][  T582]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.115546][  T582]  ? 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))
[   35.115549][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115551][  T582]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.115555][  T582]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.115559][  T582]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.115561][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.115567][  T582]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.115569][  T582]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.115571][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115573][  T582]  ? 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)
[   35.115577][  T582]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.115578][  T582]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.115581][  T582]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.115584][  T582]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.115586][  T582]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   35.115587][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.115589][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.115593][  T582]  _printk (kernel/printk/printk.c:2504)
[   35.115597][  T582]  ? snapshot_read.cold (user.c:?)
[   35.115598][  T582]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.115601][  T582]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.115604][  T582]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.115606][  T582]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   35.115610][  T582]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   35.115612][  T582]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.115615][  T582]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   35.115617][  T582]  ? netdev_notice (net/core/dev.c:13194)
[   35.115620][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.115623][  T582]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.115625][  T582]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   35.115629][  T582]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.115631][  T582]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   35.115634][  T582]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   35.115637][  T582]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   35.115641][  T582]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   35.115647][  T582]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.115650][  T582]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   35.115654][  T582]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   35.115655][  T582]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.115657][  T582]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.115660][  T582]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.115662][  T582]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.115664][  T582]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.115666][  T582]  ? kasan_save_stack (mm/kasan/common.c:58)
[   35.115668][  T582]  ? kasan_save_stack (mm/kasan/common.c:57)
[   35.115669][  T582]  ? kasan_save_track (mm/kasan/common.c:78)
[   35.115670][  T582]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.115673][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.115674][  T582]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   35.115677][  T582]  ? ___sys_sendmsg (net/socket.c:2758)
[   35.115681][  T582]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.115683][  T582]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.115686][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115687][  T582]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.115689][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115690][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115691][  T582]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   35.115694][  T582]  ? __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)
[   35.115696][  T582]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   35.115698][  T582]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.115701][  T582]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   35.115703][  T582]  ? nla_get_range_signed (lib/nlattr.c:270)
[   35.115708][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115710][  T582]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   35.115715][  T582]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   35.115720][  T582]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.115722][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.115726][  T582]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.115728][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.115730][  T582]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.115732][  T582]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.115736][  T582]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.115738][  T582]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   35.115741][  T582]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.115742][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.115746][  T582]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.115748][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.115752][  T582]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   35.115755][  T582]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.115758][  T582]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.115764][  T582]  ? 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))
[   35.115766][  T582]  ? 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))
[   35.115770][  T582]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.115774][  T582]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.115777][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.115781][  T582]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   35.115785][  T582]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   35.115788][  T582]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.115790][  T582]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   35.115795][  T582]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   35.115798][  T582]  ____sys_sendmsg (net/socket.c:2713)
[   35.115800][  T582]  ? copy_msghdr_from_user (net/socket.c:2650)
[   35.115803][  T582]  ? sock_write_iter (net/socket.c:1269)
[   35.115804][  T582]  ? move_addr_to_kernel (net/socket.c:258)
[   35.115811][  T582]  ___sys_sendmsg (net/socket.c:2767)
[   35.115814][  T582]  ? copy_msghdr_from_user (net/socket.c:2619)
[   35.115834][  T582]  __sys_sendmsg (net/socket.c:2799)
[   35.115837][  T582]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   35.115843][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.115846][  T582]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   35.115849][  T582]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   35.115851][  T582]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.115854][  T582] RIP: 0033:0x7febfd9a354e
[   35.115857][  T582] 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
[   35.115859][  T582] RSP: 002b:00007ffde52eb130 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.115862][  T582] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007febfd9a354e
[   35.115863][  T582] RDX: 0000000000000000 RSI: 00007ffde52eb1e0 RDI: 0000000000000005
[   35.115864][  T582] RBP: 00007ffde52eb140 R08: 0000000000000000 R09: 0000000000000000
[   35.115865][  T582] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e9e
[   35.115865][  T582] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde52eb8a0
| [   36.253233][  T629] softirqs last disabled at (37666): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   36.253235][  T629] Preemption disabled at:
| [   36.253236][  T629] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.253244][  T629] Tainted: [W]=WARN
[   36.253245][  T629] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.253247][  T629] Call Trace:
[   36.253249][  T629]  <TASK>
[   36.253250][  T629]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.253256][  T629]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.253258][  T629]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.253262][  T629]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.253266][  T629]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.253271][  T629]  __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))
[   36.253272][  T629]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.253279][  T629]  ? 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)
[   36.253281][  T629]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.253285][  T629]  put_chars (drivers/char/virtio_console.c:1176)
[   36.253287][  T629]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.253293][  T629]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.253301][  T629]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.253304][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.253308][  T629]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.253312][  T629]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.253314][  T629]  ? 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))
[   36.253317][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253320][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.253324][  T629]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.253328][  T629]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.253330][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.253335][  T629]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.253338][  T629]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.253340][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253341][  T629]  ? 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)
[   36.253345][  T629]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.253347][  T629]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.253349][  T629]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.253352][  T629]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.253354][  T629]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   36.253356][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.253358][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.253362][  T629]  _printk (kernel/printk/printk.c:2504)
[   36.253366][  T629]  ? snapshot_read.cold (user.c:?)
[   36.253367][  T629]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.253370][  T629]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.253372][  T629]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.253374][  T629]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.253378][  T629]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.253381][  T629]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.253383][  T629]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.253386][  T629]  ? netdev_notice (net/core/dev.c:13194)
[   36.253388][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.253391][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.253393][  T629]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.253397][  T629]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.253399][  T629]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   36.253402][  T629]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   36.253405][  T629]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   36.253410][  T629]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   36.253415][  T629]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.253419][  T629]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   36.253422][  T629]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   36.253423][  T629]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.253425][  T629]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.253429][  T629]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.253430][  T629]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.253432][  T629]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.253435][  T629]  ? kasan_save_stack (mm/kasan/common.c:58)
[   36.253436][  T629]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.253438][  T629]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.253439][  T629]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.253441][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.253443][  T629]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   36.253446][  T629]  ? ___sys_sendmsg (net/socket.c:2758)
[   36.253450][  T629]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.253452][  T629]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.253454][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253456][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.253458][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253459][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253460][  T629]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   36.253463][  T629]  ? __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)
[   36.253465][  T629]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   36.253467][  T629]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.253471][  T629]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   36.253472][  T629]  ? nla_get_range_signed (lib/nlattr.c:270)
[   36.253477][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253479][  T629]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   36.253484][  T629]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.253489][  T629]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.253491][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.253495][  T629]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.253497][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.253499][  T629]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.253501][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.253505][  T629]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.253507][  T629]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.253510][  T629]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.253511][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.253515][  T629]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.253517][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.253521][  T629]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.253526][  T629]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.253529][  T629]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.253535][  T629]  ? 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))
[   36.253537][  T629]  ? 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))
[   36.253542][  T629]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.253545][  T629]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.253548][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.253552][  T629]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.253556][  T629]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.253560][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.253561][  T629]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.253567][  T629]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.253569][  T629]  ____sys_sendmsg (net/socket.c:2713)
[   36.253572][  T629]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.253574][  T629]  ? sock_write_iter (net/socket.c:1269)
[   36.253575][  T629]  ? move_addr_to_kernel (net/socket.c:258)
[   36.253582][  T629]  ___sys_sendmsg (net/socket.c:2767)
[   36.253585][  T629]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.253601][  T629]  __sys_sendmsg (net/socket.c:2799)
[   36.253603][  T629]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.253609][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.253612][  T629]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.253615][  T629]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.253618][  T629]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.253621][  T629] RIP: 0033:0x7f082487754e
[   36.253624][  T629] 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
[   36.253626][  T629] RSP: 002b:00007ffc3f62f1d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.253628][  T629] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f082487754e
[   36.253630][  T629] RDX: 0000000000000000 RSI: 00007ffc3f62f280 RDI: 0000000000000005
[   36.253631][  T629] RBP: 00007ffc3f62f1e0 R08: 0000000000000000 R09: 0000000000000000
[   36.253631][  T629] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e9f
[   36.253632][  T629] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3f62f940
| [   37.345194][  T676] softirqs last disabled at (28908): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   37.345196][  T676] Preemption disabled at:
| [   37.345197][  T676] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.345205][  T676] Tainted: [W]=WARN
[   37.345206][  T676] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.345208][  T676] Call Trace:
[   37.345209][  T676]  <TASK>
[   37.345211][  T676]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.345216][  T676]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.345218][  T676]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.345222][  T676]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.345227][  T676]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   37.345231][  T676]  __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))
[   37.345233][  T676]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.345239][  T676]  ? 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)
[   37.345242][  T676]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.345245][  T676]  put_chars (drivers/char/virtio_console.c:1176)
[   37.345248][  T676]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.345254][  T676]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.345261][  T676]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.345264][  T676]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.345268][  T676]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.345272][  T676]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.345274][  T676]  ? 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))
[   37.345277][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345280][  T676]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.345284][  T676]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.345288][  T676]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.345290][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.345295][  T676]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.345298][  T676]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.345300][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345301][  T676]  ? 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)
[   37.345305][  T676]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.345306][  T676]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.345309][  T676]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.345312][  T676]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.345314][  T676]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   37.345316][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.345317][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.345321][  T676]  _printk (kernel/printk/printk.c:2504)
[   37.345325][  T676]  ? snapshot_read.cold (user.c:?)
[   37.345326][  T676]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.345329][  T676]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.345331][  T676]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.345333][  T676]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   37.345337][  T676]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   37.345340][  T676]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.345342][  T676]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   37.345345][  T676]  ? netdev_notice (net/core/dev.c:13194)
[   37.345347][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.345350][  T676]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.345353][  T676]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   37.345356][  T676]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.345358][  T676]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   37.345361][  T676]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   37.345364][  T676]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   37.345369][  T676]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   37.345374][  T676]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.345378][  T676]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.345381][  T676]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.345383][  T676]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   37.345384][  T676]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   37.345388][  T676]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.345390][  T676]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.345391][  T676]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.345394][  T676]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.345395][  T676]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.345397][  T676]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.345398][  T676]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.345400][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.345402][  T676]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   37.345405][  T676]  ? ___sys_sendmsg (net/socket.c:2758)
[   37.345409][  T676]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.345411][  T676]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.345413][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345415][  T676]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.345417][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345418][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345419][  T676]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.345421][  T676]  ? __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)
[   37.345424][  T676]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.345426][  T676]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.345429][  T676]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.345430][  T676]  ? nla_get_range_signed (lib/nlattr.c:270)
[   37.345435][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345437][  T676]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.345442][  T676]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.345447][  T676]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.345449][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.345453][  T676]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.345455][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.345457][  T676]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.345459][  T676]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.345462][  T676]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.345464][  T676]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.345467][  T676]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.345469][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.345473][  T676]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.345475][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.345478][  T676]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.345481][  T676]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.345484][  T676]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.345490][  T676]  ? 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))
[   37.345492][  T676]  ? 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))
[   37.345497][  T676]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.345501][  T676]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.345503][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.345507][  T676]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.345511][  T676]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.345515][  T676]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.345516][  T676]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   37.345522][  T676]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   37.345526][  T676]  ____sys_sendmsg (net/socket.c:2713)
[   37.345528][  T676]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.345531][  T676]  ? sock_write_iter (net/socket.c:1269)
[   37.345532][  T676]  ? move_addr_to_kernel (net/socket.c:258)
[   37.345540][  T676]  ___sys_sendmsg (net/socket.c:2767)
[   37.345542][  T676]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.345557][  T676]  __sys_sendmsg (net/socket.c:2799)
[   37.345560][  T676]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.345566][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.345569][  T676]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.345572][  T676]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.345575][  T676]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.345577][  T676] RIP: 0033:0x7fd03b2fb54e
[   37.345581][  T676] 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
[   37.345583][  T676] RSP: 002b:00007ffcff074240 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.345585][  T676] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fd03b2fb54e
[   37.345587][  T676] RDX: 0000000000000000 RSI: 00007ffcff0742f0 RDI: 0000000000000005
[   37.345587][  T676] RBP: 00007ffcff074250 R08: 0000000000000000 R09: 0000000000000000
[   37.345588][  T676] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916ea0
[   37.345589][  T676] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcff0749b0
| [   38.454563][  T723] softirqs last disabled at (37374): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   38.454565][  T723] Preemption disabled at:
| [   38.454566][  T723] vprintk_emit (kernel/printk/printk.c:2471)
| [   38.454574][  T723] Tainted: [W]=WARN
[   38.454575][  T723] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.454577][  T723] Call Trace:
[   38.454578][  T723]  <TASK>
[   38.454580][  T723]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.454586][  T723]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   38.454588][  T723]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.454592][  T723]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.454597][  T723]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   38.454601][  T723]  __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))
[   38.454602][  T723]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.454609][  T723]  ? 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)
[   38.454611][  T723]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.454615][  T723]  put_chars (drivers/char/virtio_console.c:1176)
[   38.454618][  T723]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.454624][  T723]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.454631][  T723]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.454634][  T723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.454639][  T723]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.454643][  T723]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.454644][  T723]  ? 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))
[   38.454648][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454650][  T723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.454654][  T723]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.454658][  T723]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.454660][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.454665][  T723]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.454667][  T723]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.454669][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454671][  T723]  ? 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)
[   38.454675][  T723]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.454676][  T723]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.454679][  T723]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.454682][  T723]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.454684][  T723]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   38.454686][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.454687][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.454691][  T723]  _printk (kernel/printk/printk.c:2504)
[   38.454695][  T723]  ? snapshot_read.cold (user.c:?)
[   38.454696][  T723]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.454699][  T723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.454702][  T723]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.454704][  T723]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   38.454708][  T723]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   38.454710][  T723]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.454713][  T723]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   38.454715][  T723]  ? netdev_notice (net/core/dev.c:13194)
[   38.454718][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.454721][  T723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.454723][  T723]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   38.454726][  T723]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.454728][  T723]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   38.454731][  T723]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   38.454735][  T723]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   38.454739][  T723]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   38.454745][  T723]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.454748][  T723]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.454752][  T723]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.454753][  T723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   38.454755][  T723]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   38.454758][  T723]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.454760][  T723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.454762][  T723]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.454764][  T723]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.454766][  T723]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.454767][  T723]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.454768][  T723]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.454771][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.454772][  T723]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   38.454775][  T723]  ? ___sys_sendmsg (net/socket.c:2758)
[   38.454779][  T723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.454781][  T723]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.454784][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454785][  T723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.454787][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454788][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454790][  T723]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.454792][  T723]  ? __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)
[   38.454794][  T723]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.454796][  T723]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.454800][  T723]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.454801][  T723]  ? nla_get_range_signed (lib/nlattr.c:270)
[   38.454805][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454808][  T723]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.454813][  T723]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.454818][  T723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.454819][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.454824][  T723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.454826][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.454827][  T723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.454829][  T723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.454833][  T723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.454835][  T723]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.454843][  T723]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.454844][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.454849][  T723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.454851][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.454854][  T723]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.454857][  T723]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.454860][  T723]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.454866][  T723]  ? 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))
[   38.454868][  T723]  ? 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))
[   38.454872][  T723]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.454876][  T723]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.454879][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.454883][  T723]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.454887][  T723]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.454890][  T723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.454892][  T723]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   38.454897][  T723]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   38.454900][  T723]  ____sys_sendmsg (net/socket.c:2713)
[   38.454902][  T723]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.454904][  T723]  ? sock_write_iter (net/socket.c:1269)
[   38.454906][  T723]  ? move_addr_to_kernel (net/socket.c:258)
[   38.454913][  T723]  ___sys_sendmsg (net/socket.c:2767)
[   38.454915][  T723]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.454931][  T723]  __sys_sendmsg (net/socket.c:2799)
[   38.454933][  T723]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.454939][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.454942][  T723]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.454945][  T723]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.454948][  T723]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.454950][  T723] RIP: 0033:0x7efe67ec454e
[   38.454954][  T723] 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
[   38.454956][  T723] RSP: 002b:00007fff7d32c8c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.454958][  T723] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007efe67ec454e
[   38.454960][  T723] RDX: 0000000000000000 RSI: 00007fff7d32c970 RDI: 0000000000000005
[   38.454961][  T723] RBP: 00007fff7d32c8d0 R08: 0000000000000000 R09: 0000000000000000
[   38.454961][  T723] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916ea1
[   38.454962][  T723] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7d32d030
| [   41.292074][  T819] softirqs last disabled at (45528): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   41.292076][  T819] Preemption disabled at:
| [   41.292077][  T819] vprintk_emit (kernel/printk/printk.c:2471)
| [   41.292085][  T819] Tainted: [W]=WARN
[   41.292086][  T819] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   41.292087][  T819] Call Trace:
[   41.292089][  T819]  <TASK>
[   41.292090][  T819]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   41.292096][  T819]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   41.292098][  T819]  __might_resched.cold (kernel/sched/core.c:9234)
[   41.292102][  T819]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   41.292106][  T819]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   41.292111][  T819]  __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))
[   41.292112][  T819]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.292119][  T819]  ? 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)
[   41.292121][  T819]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.292125][  T819]  put_chars (drivers/char/virtio_console.c:1176)
[   41.292127][  T819]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   41.292133][  T819]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   41.292141][  T819]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   41.292144][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.292148][  T819]  console_emit_next_record (kernel/printk/printk.c:3183)
[   41.292152][  T819]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   41.292154][  T819]  ? 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))
[   41.292157][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292160][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.292164][  T819]  console_flush_one_record (kernel/printk/printk.c:3268)
[   41.292168][  T819]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   41.292170][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.292175][  T819]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   41.292178][  T819]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   41.292180][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292182][  T819]  ? 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)
[   41.292185][  T819]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   41.292187][  T819]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   41.292190][  T819]  vprintk_emit (kernel/printk/printk.c:2479)
[   41.292193][  T819]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   41.292196][  T819]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   41.292201][  T819]  _printk (kernel/printk/printk.c:2504)
[   41.292204][  T819]  ? snapshot_read.cold (user.c:?)
[   41.292206][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.292208][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.292211][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.292213][  T819]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   41.292217][  T819]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   41.292220][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.292222][  T819]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   41.292225][  T819]  ? netdev_notice (net/core/dev.c:13194)
[   41.292228][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.292231][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.292233][  T819]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   41.292237][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.292239][  T819]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   41.292241][  T819]  ? register_netdev (net/core/dev.c:11618)
[   41.292242][  T819]  ? 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))
[   41.292247][  T819]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   41.292250][  T819]  ? __kernel_text_address (kernel/extable.c:79)
[   41.292252][  T819]  ? write_profile (profile.c:?)
[   41.292256][  T819]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   41.292262][  T819]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.292265][  T819]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   41.292267][  T819]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   41.292268][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   41.292270][  T819]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   41.292273][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.292275][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.292277][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.292280][  T819]  ? kasan_save_stack (mm/kasan/common.c:58)
[   41.292281][  T819]  ? kasan_save_stack (mm/kasan/common.c:57)
[   41.292283][  T819]  ? kasan_save_track (mm/kasan/common.c:78)
[   41.292284][  T819]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   41.292286][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.292288][  T819]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   41.292291][  T819]  ? ___sys_sendmsg (net/socket.c:2758)
[   41.292294][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.292296][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.292299][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292301][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.292302][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292303][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292305][  T819]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   41.292307][  T819]  ? __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)
[   41.292309][  T819]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   41.292310][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.292314][  T819]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   41.292315][  T819]  ? nla_get_range_signed (lib/nlattr.c:270)
[   41.292320][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292322][  T819]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   41.292327][  T819]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.292333][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.292334][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.292339][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.292341][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.292343][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.292344][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.292348][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.292350][  T819]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.292353][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.292354][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.292359][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.292361][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.292364][  T819]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   41.292367][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.292370][  T819]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   41.292376][  T819]  ? 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))
[   41.292378][  T819]  ? 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))
[   41.292383][  T819]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   41.292387][  T819]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   41.292389][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.292393][  T819]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   41.292397][  T819]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   41.292401][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.292403][  T819]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   41.292408][  T819]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   41.292411][  T819]  ____sys_sendmsg (net/socket.c:2713)
[   41.292413][  T819]  ? copy_msghdr_from_user (net/socket.c:2650)
[   41.292415][  T819]  ? sock_write_iter (net/socket.c:1269)
[   41.292417][  T819]  ? move_addr_to_kernel (net/socket.c:258)
[   41.292424][  T819]  ___sys_sendmsg (net/socket.c:2767)
[   41.292427][  T819]  ? copy_msghdr_from_user (net/socket.c:2619)
[   41.292443][  T819]  __sys_sendmsg (net/socket.c:2799)
[   41.292445][  T819]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   41.292451][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.292454][  T819]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   41.292457][  T819]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   41.292460][  T819]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   41.292462][  T819] RIP: 0033:0x7fb9b237054e
[   41.292466][  T819] 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
[   41.292468][  T819] RSP: 002b:00007ffe25671760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   41.292470][  T819] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fb9b237054e
[   41.292472][  T819] RDX: 0000000000000000 RSI: 00007ffe25671810 RDI: 0000000000000005
[   41.292473][  T819] RBP: 00007ffe25671770 R08: 0000000000000000 R09: 0000000000000000
[   41.292474][  T819] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916ea4
[   41.292474][  T819] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe25671ed0
| [   48.980785][  T921] softirqs last disabled at (46626): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   48.980787][  T921] Preemption disabled at:
| [   48.980788][  T921] vprintk_emit (kernel/printk/printk.c:2471)
| [   48.980796][  T921] Tainted: [W]=WARN
[   48.980797][  T921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.980799][  T921] Call Trace:
[   48.980801][  T921]  <TASK>
[   48.980802][  T921]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   48.980808][  T921]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   48.980810][  T921]  __might_resched.cold (kernel/sched/core.c:9234)
[   48.980814][  T921]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   48.980818][  T921]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   48.980822][  T921]  __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))
[   48.980824][  T921]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.980830][  T921]  ? 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)
[   48.980833][  T921]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.980837][  T921]  put_chars (drivers/char/virtio_console.c:1176)
[   48.980839][  T921]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   48.980845][  T921]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   48.980853][  T921]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   48.980856][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.980860][  T921]  console_emit_next_record (kernel/printk/printk.c:3183)
[   48.980864][  T921]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   48.980866][  T921]  ? 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))
[   48.980869][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.980872][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.980876][  T921]  console_flush_one_record (kernel/printk/printk.c:3268)
[   48.980880][  T921]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   48.980881][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.980887][  T921]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   48.980889][  T921]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   48.980891][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.980893][  T921]  ? 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)
[   48.980896][  T921]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   48.980902][  T921]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   48.980904][  T921]  vprintk_emit (kernel/printk/printk.c:2479)
[   48.980907][  T921]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   48.980910][  T921]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   48.980915][  T921]  _printk (kernel/printk/printk.c:2504)
[   48.980918][  T921]  ? snapshot_read.cold (user.c:?)
[   48.980920][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.980922][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.980925][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.980927][  T921]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   48.980931][  T921]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   48.980933][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   48.980935][  T921]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   48.980938][  T921]  ? netdev_notice (net/core/dev.c:13194)
[   48.980941][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.980944][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.980946][  T921]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   48.980950][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   48.980952][  T921]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   48.980954][  T921]  ? register_netdev (net/core/dev.c:11618)
[   48.980955][  T921]  ? 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))
[   48.980960][  T921]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   48.980963][  T921]  ? __kernel_text_address (kernel/extable.c:79)
[   48.980965][  T921]  ? write_profile (profile.c:?)
[   48.980969][  T921]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   48.980974][  T921]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   48.980978][  T921]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   48.980980][  T921]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   48.980981][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.980983][  T921]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.980986][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.980987][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.980989][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.980991][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.980993][  T921]  ? kasan_save_stack (mm/kasan/common.c:58)
[   48.980995][  T921]  ? kasan_save_stack (mm/kasan/common.c:57)
[   48.980996][  T921]  ? kasan_save_track (mm/kasan/common.c:78)
[   48.980997][  T921]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   48.981000][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.981002][  T921]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   48.981004][  T921]  ? ___sys_sendmsg (net/socket.c:2758)
[   48.981008][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.981010][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.981013][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.981014][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.981016][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.981017][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.981019][  T921]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   48.981021][  T921]  ? __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)
[   48.981022][  T921]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   48.981024][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.981027][  T921]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   48.981028][  T921]  ? nla_get_range_signed (lib/nlattr.c:270)
[   48.981033][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.981035][  T921]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   48.981040][  T921]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.981046][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.981047][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.981052][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.981054][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.981055][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.981057][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.981061][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.981063][  T921]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.981066][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.981067][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.981071][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.981073][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.981077][  T921]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   48.981080][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.981083][  T921]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.981089][  T921]  ? 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))
[   48.981091][  T921]  ? 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))
[   48.981095][  T921]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.981099][  T921]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.981101][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.981105][  T921]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   48.981109][  T921]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   48.981113][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.981115][  T921]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   48.981120][  T921]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   48.981122][  T921]  ____sys_sendmsg (net/socket.c:2713)
[   48.981125][  T921]  ? copy_msghdr_from_user (net/socket.c:2650)
[   48.981127][  T921]  ? sock_write_iter (net/socket.c:1269)
[   48.981129][  T921]  ? move_addr_to_kernel (net/socket.c:258)
[   48.981136][  T921]  ___sys_sendmsg (net/socket.c:2767)
[   48.981138][  T921]  ? copy_msghdr_from_user (net/socket.c:2619)
[   48.981154][  T921]  __sys_sendmsg (net/socket.c:2799)
[   48.981156][  T921]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   48.981163][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.981165][  T921]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   48.981168][  T921]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   48.981171][  T921]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.981173][  T921] RIP: 0033:0x7fceb4d1454e
[   48.981177][  T921] 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
[   48.981179][  T921] RSP: 002b:00007ffc8ae70b90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.981182][  T921] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fceb4d1454e
[   48.981183][  T921] RDX: 0000000000000000 RSI: 00007ffc8ae70c40 RDI: 0000000000000005
[   48.981184][  T921] RBP: 00007ffc8ae70ba0 R08: 0000000000000000 R09: 0000000000000000
[   48.981185][  T921] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916eac
[   48.981185][  T921] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8ae71300
| [   56.518759][ T1030] softirqs last disabled at (41466): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   56.518762][ T1030] Preemption disabled at:
| [   56.518762][ T1030] vprintk_emit (kernel/printk/printk.c:2471)
| [   56.518771][ T1030] Tainted: [W]=WARN
[   56.518772][ T1030] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   56.518773][ T1030] Call Trace:
[   56.518775][ T1030]  <TASK>
[   56.518777][ T1030]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   56.518782][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   56.518784][ T1030]  __might_resched.cold (kernel/sched/core.c:9234)
[   56.518788][ T1030]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   56.518793][ T1030]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   56.518797][ T1030]  __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))
[   56.518799][ T1030]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   56.518805][ T1030]  ? 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)
[   56.518808][ T1030]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   56.518812][ T1030]  put_chars (drivers/char/virtio_console.c:1176)
[   56.518814][ T1030]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   56.518820][ T1030]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   56.518828][ T1030]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   56.518831][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   56.518835][ T1030]  console_emit_next_record (kernel/printk/printk.c:3183)
[   56.518839][ T1030]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   56.518841][ T1030]  ? 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))
[   56.518844][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.518847][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   56.518851][ T1030]  console_flush_one_record (kernel/printk/printk.c:3268)
[   56.518855][ T1030]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   56.518857][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.518862][ T1030]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   56.518865][ T1030]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   56.518867][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.518868][ T1030]  ? 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)
[   56.518872][ T1030]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   56.518874][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   56.518876][ T1030]  vprintk_emit (kernel/printk/printk.c:2479)
[   56.518879][ T1030]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   56.518882][ T1030]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   56.518887][ T1030]  _printk (kernel/printk/printk.c:2504)
[   56.518891][ T1030]  ? snapshot_read.cold (user.c:?)
[   56.518892][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   56.518895][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   56.518898][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   56.518900][ T1030]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   56.518903][ T1030]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   56.518906][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   56.518908][ T1030]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   56.518911][ T1030]  ? netdev_notice (net/core/dev.c:13194)
[   56.518914][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.518917][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   56.518919][ T1030]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   56.518922][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   56.518924][ T1030]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   56.518926][ T1030]  ? register_netdev (net/core/dev.c:11618)
[   56.518928][ T1030]  ? 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))
[   56.518933][ T1030]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   56.518936][ T1030]  ? __kernel_text_address (kernel/extable.c:79)
[   56.518938][ T1030]  ? write_profile (profile.c:?)
[   56.518948][ T1030]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   56.518954][ T1030]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   56.518957][ T1030]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   56.518959][ T1030]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   56.518960][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   56.518962][ T1030]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   56.518965][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   56.518967][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   56.518969][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   56.518972][ T1030]  ? kasan_save_stack (mm/kasan/common.c:58)
[   56.518973][ T1030]  ? kasan_save_stack (mm/kasan/common.c:57)
[   56.518974][ T1030]  ? kasan_save_track (mm/kasan/common.c:78)
[   56.518976][ T1030]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   56.518978][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.518980][ T1030]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   56.518983][ T1030]  ? ___sys_sendmsg (net/socket.c:2758)
[   56.518986][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   56.518988][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   56.518991][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.518992][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   56.518994][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.518995][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.518997][ T1030]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   56.518999][ T1030]  ? __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)
[   56.519000][ T1030]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   56.519002][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   56.519005][ T1030]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   56.519006][ T1030]  ? nla_get_range_signed (lib/nlattr.c:270)
[   56.519011][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519013][ T1030]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   56.519018][ T1030]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   56.519023][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   56.519025][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.519029][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   56.519031][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519033][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   56.519035][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   56.519038][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   56.519040][ T1030]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   56.519043][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   56.519044][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.519049][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   56.519050][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519054][ T1030]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   56.519057][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   56.519060][ T1030]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   56.519066][ T1030]  ? 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))
[   56.519068][ T1030]  ? 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))
[   56.519072][ T1030]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   56.519076][ T1030]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   56.519078][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519082][ T1030]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   56.519086][ T1030]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   56.519090][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   56.519091][ T1030]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   56.519097][ T1030]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   56.519099][ T1030]  ____sys_sendmsg (net/socket.c:2713)
[   56.519102][ T1030]  ? copy_msghdr_from_user (net/socket.c:2650)
[   56.519104][ T1030]  ? sock_write_iter (net/socket.c:1269)
[   56.519105][ T1030]  ? move_addr_to_kernel (net/socket.c:258)
[   56.519112][ T1030]  ___sys_sendmsg (net/socket.c:2767)
[   56.519115][ T1030]  ? copy_msghdr_from_user (net/socket.c:2619)
[   56.519130][ T1030]  __sys_sendmsg (net/socket.c:2799)
[   56.519133][ T1030]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   56.519139][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519142][ T1030]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   56.519145][ T1030]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   56.519147][ T1030]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   56.519150][ T1030] RIP: 0033:0x7fe92952154e
[   56.519153][ T1030] 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
[   56.519155][ T1030] RSP: 002b:00007ffce2aa2370 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   56.519158][ T1030] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe92952154e
[   56.519159][ T1030] RDX: 0000000000000000 RSI: 00007ffce2aa2420 RDI: 0000000000000005
[   56.519160][ T1030] RBP: 00007ffce2aa2380 R08: 0000000000000000 R09: 0000000000000000
[   56.519161][ T1030] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916eb3
[   56.519162][ T1030] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce2aa2ae0
| [   62.354628][ T1092] softirqs last disabled at (40010): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   62.354630][ T1092] Preemption disabled at:
| [   62.354631][ T1092] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.354639][ T1092] Tainted: [W]=WARN
[   62.354640][ T1092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.354642][ T1092] Call Trace:
[   62.354644][ T1092]  <TASK>
[   62.354645][ T1092]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.354651][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.354653][ T1092]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.354657][ T1092]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.354661][ T1092]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.354665][ T1092]  __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))
[   62.354667][ T1092]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.354674][ T1092]  ? 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)
[   62.354676][ T1092]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.354680][ T1092]  put_chars (drivers/char/virtio_console.c:1176)
[   62.354683][ T1092]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.354689][ T1092]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.354696][ T1092]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.354699][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.354704][ T1092]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.354708][ T1092]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.354710][ T1092]  ? 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))
[   62.354713][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.354715][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.354719][ T1092]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.354723][ T1092]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.354725][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.354730][ T1092]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.354733][ T1092]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.354735][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.354736][ T1092]  ? 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)
[   62.354740][ T1092]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.354742][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.354744][ T1092]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.354747][ T1092]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.354749][ T1092]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   62.354751][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.354753][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.354756][ T1092]  _printk (kernel/printk/printk.c:2504)
[   62.354760][ T1092]  ? snapshot_read.cold (user.c:?)
[   62.354761][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.354764][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.354767][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.354769][ T1092]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   62.354772][ T1092]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   62.354775][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.354777][ T1092]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   62.354780][ T1092]  ? netdev_notice (net/core/dev.c:13194)
[   62.354783][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.354785][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.354788][ T1092]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.354791][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.354793][ T1092]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   62.354796][ T1092]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   62.354800][ T1092]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   62.354804][ T1092]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   62.354809][ T1092]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.354813][ T1092]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.354816][ T1092]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.354817][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.354819][ T1092]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.354822][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.354824][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.354826][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.354828][ T1092]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.354830][ T1092]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.354831][ T1092]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.354832][ T1092]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.354835][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.354837][ T1092]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.354840][ T1092]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.354843][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.354845][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.354848][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.354849][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.354851][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.354852][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.354853][ T1092]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.354856][ T1092]  ? __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)
[   62.354858][ T1092]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.354860][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.354863][ T1092]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.354865][ T1092]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.354869][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.354871][ T1092]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.354876][ T1092]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.354881][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.354883][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.354888][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.354890][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.354891][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.354893][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.354897][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.354899][ T1092]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.354902][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.354903][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.354908][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.354909][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.354913][ T1092]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.354916][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.354919][ T1092]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.354925][ T1092]  ? 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))
[   62.354927][ T1092]  ? 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))
[   62.354931][ T1092]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.354935][ T1092]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.354938][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.354942][ T1092]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.354945][ T1092]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.354949][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.354951][ T1092]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.354956][ T1092]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.354959][ T1092]  ____sys_sendmsg (net/socket.c:2713)
[   62.354961][ T1092]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.354963][ T1092]  ? sock_write_iter (net/socket.c:1269)
[   62.354965][ T1092]  ? move_addr_to_kernel (net/socket.c:258)
[   62.354972][ T1092]  ___sys_sendmsg (net/socket.c:2767)
[   62.354979][ T1092]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.354994][ T1092]  __sys_sendmsg (net/socket.c:2799)
[   62.354997][ T1092]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.355003][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.355006][ T1092]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.355009][ T1092]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.355012][ T1092]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.355014][ T1092] RIP: 0033:0x7f67c27de54e
[   62.355018][ T1092] 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
[   62.355020][ T1092] RSP: 002b:00007ffc5b814370 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.355022][ T1092] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f67c27de54e
[   62.355024][ T1092] RDX: 0000000000000000 RSI: 00007ffc5b814420 RDI: 0000000000000005
[   62.355024][ T1092] RBP: 00007ffc5b814380 R08: 0000000000000000 R09: 0000000000000000
[   62.355025][ T1092] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916eb9
[   62.355026][ T1092] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5b814ae0
| [   63.461450][ T1141] softirqs last disabled at (31010): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   63.461452][ T1141] Preemption disabled at:
| [   63.461453][ T1141] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.461461][ T1141] Tainted: [W]=WARN
[   63.461462][ T1141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.461464][ T1141] Call Trace:
[   63.461466][ T1141]  <TASK>
[   63.461467][ T1141]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.461473][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.461474][ T1141]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.461479][ T1141]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.461483][ T1141]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.461487][ T1141]  __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))
[   63.461489][ T1141]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.461496][ T1141]  ? 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)
[   63.461498][ T1141]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.461502][ T1141]  put_chars (drivers/char/virtio_console.c:1176)
[   63.461504][ T1141]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.461511][ T1141]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.461518][ T1141]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.461521][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.461528][ T1141]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.461532][ T1141]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.461534][ T1141]  ? 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))
[   63.461537][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461540][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.461544][ T1141]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.461548][ T1141]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.461550][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.461555][ T1141]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.461558][ T1141]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.461560][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461561][ T1141]  ? 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)
[   63.461565][ T1141]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.461567][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.461569][ T1141]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.461572][ T1141]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.461574][ T1141]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   63.461576][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.461578][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.461581][ T1141]  _printk (kernel/printk/printk.c:2504)
[   63.461585][ T1141]  ? snapshot_read.cold (user.c:?)
[   63.461587][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.461589][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.461592][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.461594][ T1141]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   63.461598][ T1141]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   63.461600][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.461603][ T1141]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   63.461605][ T1141]  ? netdev_notice (net/core/dev.c:13194)
[   63.461608][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.461611][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.461613][ T1141]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.461616][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.461618][ T1141]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   63.461622][ T1141]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   63.461625][ T1141]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   63.461630][ T1141]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   63.461635][ T1141]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.461639][ T1141]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.461642][ T1141]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.461643][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.461645][ T1141]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.461649][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.461650][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.461652][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.461655][ T1141]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.461657][ T1141]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.461658][ T1141]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.461659][ T1141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.461661][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.461663][ T1141]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.461666][ T1141]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.461670][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.461672][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.461674][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461676][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.461677][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461679][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461680][ T1141]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.461682][ T1141]  ? __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)
[   63.461685][ T1141]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.461687][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.461690][ T1141]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.461691][ T1141]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.461696][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461698][ T1141]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.461703][ T1141]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.461709][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.461711][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.461715][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.461717][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.461719][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.461720][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.461724][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.461726][ T1141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.461729][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.461730][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.461735][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.461737][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.461740][ T1141]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.461743][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.461746][ T1141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.461752][ T1141]  ? 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))
[   63.461754][ T1141]  ? 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))
[   63.461758][ T1141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.461762][ T1141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.461765][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.461769][ T1141]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.461773][ T1141]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.461776][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.461778][ T1141]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.461784][ T1141]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.461786][ T1141]  ____sys_sendmsg (net/socket.c:2713)
[   63.461788][ T1141]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.461791][ T1141]  ? sock_write_iter (net/socket.c:1269)
[   63.461792][ T1141]  ? move_addr_to_kernel (net/socket.c:258)
[   63.461799][ T1141]  ___sys_sendmsg (net/socket.c:2767)
[   63.461802][ T1141]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.461817][ T1141]  __sys_sendmsg (net/socket.c:2799)
[   63.461820][ T1141]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.461826][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.461829][ T1141]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.461832][ T1141]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.461835][ T1141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.461837][ T1141] RIP: 0033:0x7ff8e2f9754e
[   63.461841][ T1141] 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
[   63.461842][ T1141] RSP: 002b:00007ffc72263560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.461845][ T1141] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007ff8e2f9754e
[   63.461846][ T1141] RDX: 0000000000000000 RSI: 00007ffc72263610 RDI: 0000000000000005
[   63.461847][ T1141] RBP: 00007ffc72263570 R08: 0000000000000000 R09: 0000000000000000
[   63.461848][ T1141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916eba
[   63.461849][ T1141] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc72263cd0
| [   64.588585][ T1190] softirqs last disabled at (39398): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   64.588587][ T1190] Preemption disabled at:
| [   64.588588][ T1190] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.588596][ T1190] Tainted: [W]=WARN
[   64.588597][ T1190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.588599][ T1190] Call Trace:
[   64.588600][ T1190]  <TASK>
[   64.588602][ T1190]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.588608][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.588610][ T1190]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.588614][ T1190]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.588618][ T1190]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.588622][ T1190]  __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))
[   64.588624][ T1190]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.588631][ T1190]  ? 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)
[   64.588634][ T1190]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.588638][ T1190]  put_chars (drivers/char/virtio_console.c:1176)
[   64.588640][ T1190]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.588646][ T1190]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.588654][ T1190]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.588657][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.588661][ T1190]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.588665][ T1190]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.588667][ T1190]  ? 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))
[   64.588670][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588673][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.588677][ T1190]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.588681][ T1190]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.588683][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.588688][ T1190]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.588691][ T1190]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.588693][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588694][ T1190]  ? 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)
[   64.588698][ T1190]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.588700][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.588702][ T1190]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.588705][ T1190]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.588707][ T1190]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   64.588709][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.588711][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.588714][ T1190]  _printk (kernel/printk/printk.c:2504)
[   64.588718][ T1190]  ? snapshot_read.cold (user.c:?)
[   64.588720][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.588722][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.588725][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.588727][ T1190]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.588731][ T1190]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.588733][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.588736][ T1190]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.588738][ T1190]  ? netdev_notice (net/core/dev.c:13194)
[   64.588741][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.588744][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.588746][ T1190]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.588749][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.588751][ T1190]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   64.588754][ T1190]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   64.588758][ T1190]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   64.588762][ T1190]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   64.588768][ T1190]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.588771][ T1190]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.588775][ T1190]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.588776][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.588778][ T1190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.588781][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.588783][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.588785][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.588787][ T1190]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.588789][ T1190]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.588790][ T1190]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.588791][ T1190]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.588794][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.588795][ T1190]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.588798][ T1190]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.588802][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.588804][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.588807][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588808][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.588810][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588811][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588812][ T1190]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.588815][ T1190]  ? __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)
[   64.588816][ T1190]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.588818][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.588822][ T1190]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.588823][ T1190]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.588827][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588829][ T1190]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.588834][ T1190]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.588840][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.588841][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.588846][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.588848][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.588849][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.588851][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.588855][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.588857][ T1190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.588860][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.588861][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.588865][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.588867][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.588870][ T1190]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.588874][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.588876][ T1190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.588883][ T1190]  ? 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))
[   64.588885][ T1190]  ? 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))
[   64.588889][ T1190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.588893][ T1190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.588895][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.588899][ T1190]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.588903][ T1190]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.588907][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.588908][ T1190]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.588914][ T1190]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.588916][ T1190]  ____sys_sendmsg (net/socket.c:2713)
[   64.588919][ T1190]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.588921][ T1190]  ? sock_write_iter (net/socket.c:1269)
[   64.588922][ T1190]  ? move_addr_to_kernel (net/socket.c:258)
[   64.588929][ T1190]  ___sys_sendmsg (net/socket.c:2767)
[   64.588932][ T1190]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.588947][ T1190]  __sys_sendmsg (net/socket.c:2799)
[   64.588950][ T1190]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.588956][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.588959][ T1190]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.588962][ T1190]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.588965][ T1190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.588967][ T1190] RIP: 0033:0x7f821bbf554e
[   64.588971][ T1190] 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
[   64.588972][ T1190] RSP: 002b:00007fff2ff3a320 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.588975][ T1190] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f821bbf554e
[   64.588976][ T1190] RDX: 0000000000000000 RSI: 00007fff2ff3a3d0 RDI: 0000000000000005
[   64.588977][ T1190] RBP: 00007fff2ff3a330 R08: 0000000000000000 R09: 0000000000000000
[   64.588978][ T1190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916ebb
[   64.588979][ T1190] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff2ff3aa90
| [   65.726669][ T1239] softirqs last disabled at (39798): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   65.726672][ T1239] Preemption disabled at:
| [   65.726672][ T1239] vprintk_emit (kernel/printk/printk.c:2471)
| [   65.726680][ T1239] Tainted: [W]=WARN
[   65.726681][ T1239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.726683][ T1239] Call Trace:
[   65.726685][ T1239]  <TASK>
[   65.726687][ T1239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.726693][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   65.726695][ T1239]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.726699][ T1239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.726703][ T1239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   65.726707][ T1239]  __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))
[   65.726709][ T1239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.726716][ T1239]  ? 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)
[   65.726718][ T1239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.726722][ T1239]  put_chars (drivers/char/virtio_console.c:1176)
[   65.726724][ T1239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.726730][ T1239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.726738][ T1239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.726741][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.726746][ T1239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.726749][ T1239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.726751][ T1239]  ? 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))
[   65.726754][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.726757][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.726761][ T1239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.726765][ T1239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.726767][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.726772][ T1239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.726775][ T1239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.726777][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.726778][ T1239]  ? 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)
[   65.726782][ T1239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.726784][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.726786][ T1239]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.726789][ T1239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.726791][ T1239]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   65.726793][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.726794][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.726798][ T1239]  _printk (kernel/printk/printk.c:2504)
[   65.726802][ T1239]  ? snapshot_read.cold (user.c:?)
[   65.726803][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.726806][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.726809][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.726811][ T1239]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   65.726814][ T1239]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   65.726817][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.726819][ T1239]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   65.726822][ T1239]  ? netdev_notice (net/core/dev.c:13194)
[   65.726824][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.726827][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.726829][ T1239]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   65.726833][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.726835][ T1239]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   65.726837][ T1239]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   65.726841][ T1239]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   65.726846][ T1239]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   65.726851][ T1239]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.726855][ T1239]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   65.726858][ T1239]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   65.726859][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   65.726861][ T1239]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   65.726865][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.726867][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.726868][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.726871][ T1239]  ? kasan_save_stack (mm/kasan/common.c:58)
[   65.726873][ T1239]  ? kasan_save_stack (mm/kasan/common.c:57)
[   65.726874][ T1239]  ? kasan_save_track (mm/kasan/common.c:78)
[   65.726875][ T1239]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   65.726877][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.726879][ T1239]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   65.726882][ T1239]  ? ___sys_sendmsg (net/socket.c:2758)
[   65.726886][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.726888][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.726890][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.726892][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.726893][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.726894][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.726896][ T1239]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   65.726898][ T1239]  ? __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)
[   65.726901][ T1239]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   65.726903][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.726906][ T1239]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   65.726907][ T1239]  ? nla_get_range_signed (lib/nlattr.c:270)
[   65.726912][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.726914][ T1239]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   65.726919][ T1239]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.726924][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.726926][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.726930][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.726932][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.726934][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.726936][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.726939][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.726941][ T1239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.726944][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.726946][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.726950][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.726952][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.726955][ T1239]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   65.726958][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.726961][ T1239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   65.726967][ T1239]  ? 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))
[   65.726969][ T1239]  ? 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))
[   65.726974][ T1239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   65.726977][ T1239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   65.726980][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.726984][ T1239]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   65.726988][ T1239]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   65.726991][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.726993][ T1239]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   65.727002][ T1239]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   65.727005][ T1239]  ____sys_sendmsg (net/socket.c:2713)
[   65.727007][ T1239]  ? copy_msghdr_from_user (net/socket.c:2650)
[   65.727009][ T1239]  ? sock_write_iter (net/socket.c:1269)
[   65.727010][ T1239]  ? move_addr_to_kernel (net/socket.c:258)
[   65.727017][ T1239]  ___sys_sendmsg (net/socket.c:2767)
[   65.727020][ T1239]  ? copy_msghdr_from_user (net/socket.c:2619)
[   65.727035][ T1239]  __sys_sendmsg (net/socket.c:2799)
[   65.727038][ T1239]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   65.727044][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.727047][ T1239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   65.727050][ T1239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   65.727053][ T1239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   65.727055][ T1239] RIP: 0033:0x7fb2ac55f54e
[   65.727058][ T1239] 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
[   65.727060][ T1239] RSP: 002b:00007ffe6e9611b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   65.727063][ T1239] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb2ac55f54e
[   65.727064][ T1239] RDX: 0000000000000000 RSI: 00007ffe6e961260 RDI: 0000000000000005
[   65.727065][ T1239] RBP: 00007ffe6e9611c0 R08: 0000000000000000 R09: 0000000000000000
[   65.727066][ T1239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916ebd


Finger prints:
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
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