======================================
| [    9.373639][  T210] softirqs last disabled at (26615): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.373641][  T210] Preemption disabled at:
| [    9.373642][  T210] 0x0
| [    9.373652][  T210] Tainted: [W]=WARN
[    9.373653][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.373654][  T210] Call Trace:
[    9.373656][  T210]  <TASK>
[    9.373658][  T210]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.373664][  T210]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.373669][  T210]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.373673][  T210]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.373677][  T210]  __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))
[    9.373679][  T210]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.373686][  T210]  ? 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)
[    9.373688][  T210]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.373692][  T210]  put_chars (drivers/char/virtio_console.c:1176)
[    9.373694][  T210]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.373696][  T210]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.373699][  T210]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.373705][  T210]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.373712][  T210]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.373714][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.373716][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.373721][  T210]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.373724][  T210]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.373726][  T210]  ? 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))
[    9.373729][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.373731][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.373735][  T210]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.373739][  T210]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.373741][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.373746][  T210]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.373749][  T210]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.373751][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.373752][  T210]  ? 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)
[    9.373756][  T210]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.373758][  T210]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.373760][  T210]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.373763][  T210]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.373766][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.373770][  T210]  _printk (kernel/printk/printk.c:2504)
[    9.373773][  T210]  ? snapshot_read.cold (user.c:?)
[    9.373776][  T210]  ? 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)
[    9.373779][  T210]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.373782][  T210]  ? 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)
[    9.373785][  T210]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.373789][  T210]  ? exit_notify (kernel/exit.c:780)
[    9.373790][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.373793][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.373796][  T210]  do_group_exit (kernel/exit.c:1151)
[    9.373799][  T210]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.373801][  T210]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.373803][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.373807][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.373810][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.373812][  T210] RIP: 0033:0x7f694a74e1b8
[    9.373815][  T210] Code: Unable to access opcode bytes at 0x7f694a74e18e.

Code starting with the faulting instruction
===========================================
[    9.373816][  T210] RSP: 002b:00007ffe62d859e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.373818][  T210] RAX: ffffffffffffffda RBX: 00007f694a87ef88 RCX: 00007f694a74e1b8
[    9.373820][  T210] RDX: 00007f694a498fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.373820][  T210] RBP: 00007ffe62d85a40 R08: 0000000000000000 R09: 0000000000000050
[    9.373821][  T210] R10: 00007ffe62d85800 R11: 0000000000000246 R12: 0000000000000001
[    9.373822][  T210] R13: 0000000000000000 R14: 00007f694a87d680 R15: 00007f694a87efa0
| [   11.230712][  T258] softirqs last disabled at (44150): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   11.230714][  T258] Preemption disabled at:
| [   11.230715][  T258] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.230723][  T258] Tainted: [W]=WARN
[   11.230724][  T258] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.230726][  T258] Call Trace:
[   11.230727][  T258]  <TASK>
[   11.230729][  T258]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.230735][  T258]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.230737][  T258]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.230742][  T258]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.230746][  T258]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.230750][  T258]  __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))
[   11.230752][  T258]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.230759][  T258]  ? 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)
[   11.230761][  T258]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.230764][  T258]  put_chars (drivers/char/virtio_console.c:1176)
[   11.230767][  T258]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.230773][  T258]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.230780][  T258]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.230783][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.230787][  T258]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.230791][  T258]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.230793][  T258]  ? 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))
[   11.230796][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230798][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.230802][  T258]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.230806][  T258]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.230808][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.230813][  T258]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.230816][  T258]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.230818][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230819][  T258]  ? 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)
[   11.230823][  T258]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.230824][  T258]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.230827][  T258]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.230830][  T258]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.230832][  T258]  ? save_trace (kernel/locking/lockdep.c:589)
[   11.230836][  T258]  _printk (kernel/printk/printk.c:2504)
[   11.230840][  T258]  ? snapshot_read.cold (user.c:?)
[   11.230843][  T258]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.230845][  T258]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   11.230849][  T258]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   11.230852][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.230854][  T258]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   11.230857][  T258]  ? netdev_notice (net/core/dev.c:13194)
[   11.230859][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.230862][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.230865][  T258]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.230868][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.230870][  T258]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   11.230872][  T258]  ? register_netdev (net/core/dev.c:11618)
[   11.230873][  T258]  ? 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))
[   11.230878][  T258]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   11.230881][  T258]  ? __kernel_text_address (kernel/extable.c:79)
[   11.230883][  T258]  ? write_profile (profile.c:?)
[   11.230887][  T258]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   11.230893][  T258]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.230896][  T258]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.230898][  T258]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.230899][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.230902][  T258]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.230905][  T258]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.230907][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.230909][  T258]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.230911][  T258]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.230913][  T258]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.230915][  T258]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.230916][  T258]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.230918][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.230920][  T258]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.230923][  T258]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.230926][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.230928][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.230931][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230932][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.230934][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230935][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230937][  T258]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.230939][  T258]  ? __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)
[   11.230941][  T258]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.230943][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.230946][  T258]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.230948][  T258]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.230952][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.230955][  T258]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.230960][  T258]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.230965][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.230967][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.230971][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.230973][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.230975][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.230976][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.230980][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.230982][  T258]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.230985][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.230986][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.230991][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.230992][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.230996][  T258]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.230999][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.231002][  T258]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.231008][  T258]  ? 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))
[   11.231010][  T258]  ? 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))
[   11.231014][  T258]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.231018][  T258]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.231020][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.231025][  T258]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.231033][  T258]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.231036][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.231038][  T258]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.231043][  T258]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.231046][  T258]  ____sys_sendmsg (net/socket.c:2713)
[   11.231048][  T258]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.231050][  T258]  ? sock_write_iter (net/socket.c:1269)
[   11.231052][  T258]  ? move_addr_to_kernel (net/socket.c:258)
[   11.231059][  T258]  ___sys_sendmsg (net/socket.c:2767)
[   11.231062][  T258]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.231077][  T258]  __sys_sendmsg (net/socket.c:2799)
[   11.231080][  T258]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.231086][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.231089][  T258]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.231092][  T258]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.231095][  T258]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.231097][  T258] RIP: 0033:0x7f2f11af254e
[   11.231101][  T258] 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
[   11.231103][  T258] RSP: 002b:00007ffd9cebef10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.231105][  T258] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f2f11af254e
[   11.231107][  T258] RDX: 0000000000000000 RSI: 00007ffd9cebefc0 RDI: 0000000000000005
[   11.231108][  T258] RBP: 00007ffd9cebef20 R08: 0000000000000000 R09: 0000000000000000
[   11.231109][  T258] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1bc
[   11.231109][  T258] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd9cebf680
| [   12.338352][  T279] softirqs last disabled at (39208): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.338354][  T279] Preemption disabled at:
| [   12.338355][  T279] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.338363][  T279] Tainted: [W]=WARN
[   12.338364][  T279] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.338366][  T279] Call Trace:
[   12.338367][  T279]  <TASK>
[   12.338369][  T279]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.338374][  T279]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.338376][  T279]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.338381][  T279]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.338385][  T279]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.338389][  T279]  __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))
[   12.338391][  T279]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.338397][  T279]  ? 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)
[   12.338400][  T279]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.338403][  T279]  put_chars (drivers/char/virtio_console.c:1176)
[   12.338406][  T279]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.338407][  T279]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.338410][  T279]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.338415][  T279]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.338423][  T279]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.338425][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338427][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.338431][  T279]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.338435][  T279]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.338437][  T279]  ? 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))
[   12.338440][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338442][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.338446][  T279]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.338450][  T279]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.338451][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.338457][  T279]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.338459][  T279]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.338461][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338463][  T279]  ? 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)
[   12.338467][  T279]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.338468][  T279]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.338471][  T279]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.338474][  T279]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.338476][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.338478][  T279]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.338482][  T279]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.338485][  T279]  _printk (kernel/printk/printk.c:2504)
[   12.338488][  T279]  ? snapshot_read.cold (user.c:?)
[   12.338492][  T279]  ? br_multicast_flood (??:?)
[   12.338495][  T279]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.338497][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.338498][  T279]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.338502][  T279]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   12.338506][  T279]  br_init_port (net/bridge/br_stp_if.c:39)
[   12.338509][  T279]  new_nbp (net/bridge/br_if.c:449)
[   12.338513][  T279]  br_add_if (net/bridge/br_if.c:592)
[   12.338515][  T279]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.338518][  T279]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.338524][  T279]  do_set_master (net/core/rtnetlink.c:3071)
[   12.338527][  T279]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.338530][  T279]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.338533][  T279]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.338535][  T279]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.338537][  T279]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.338541][  T279]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.338543][  T279]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.338544][  T279]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.338547][  T279]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.338549][  T279]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.338550][  T279]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.338552][  T279]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.338554][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.338556][  T279]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.338558][  T279]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.338562][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.338564][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.338566][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338568][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.338570][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338571][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338572][  T279]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.338575][  T279]  ? __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)
[   12.338576][  T279]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.338578][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.338581][  T279]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.338582][  T279]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.338587][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338589][  T279]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.338594][  T279]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.338599][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.338601][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.338606][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.338607][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.338610][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.338611][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.338615][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.338617][  T279]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.338620][  T279]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.338621][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.338626][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.338627][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.338631][  T279]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.338634][  T279]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.338637][  T279]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.338643][  T279]  ? 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))
[   12.338645][  T279]  ? 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))
[   12.338649][  T279]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.338653][  T279]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.338656][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.338660][  T279]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.338664][  T279]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.338667][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.338669][  T279]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.338674][  T279]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.338677][  T279]  ____sys_sendmsg (net/socket.c:2713)
[   12.338679][  T279]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.338681][  T279]  ? sock_write_iter (net/socket.c:1269)
[   12.338683][  T279]  ? move_addr_to_kernel (net/socket.c:258)
[   12.338690][  T279]  ___sys_sendmsg (net/socket.c:2767)
[   12.338693][  T279]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.338708][  T279]  __sys_sendmsg (net/socket.c:2799)
[   12.338710][  T279]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.338717][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.338720][  T279]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.338722][  T279]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.338725][  T279]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.338727][  T279] RIP: 0033:0x7f18aeccc54e
[   12.338731][  T279] 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
[   12.338733][  T279] RSP: 002b:00007ffc13a75e00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.338735][  T279] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f18aeccc54e
[   12.338737][  T279] RDX: 0000000000000000 RSI: 00007ffc13a75eb0 RDI: 0000000000000005
[   12.338738][  T279] RBP: 00007ffc13a75e10 R08: 0000000000000000 R09: 0000000000000000
[   12.338738][  T279] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1bd
[   12.338739][  T279] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc13a76570
| [   17.077227][   T69] softirqs last disabled at (35436): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   17.077229][   T69] Preemption disabled at:
| [   17.077230][   T69] 0x0
| [   17.077240][   T69] Tainted: [W]=WARN
[   17.077241][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.077243][   T69] Workqueue: netns cleanup_net
[   17.077246][   T69] Call Trace:
[   17.077248][   T69]  <TASK>
[   17.077250][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.077256][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.077261][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.077265][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.077270][   T69]  __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))
[   17.077272][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.077279][   T69]  ? 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)
[   17.077281][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.077285][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   17.077287][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.077294][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.077302][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.077305][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.077312][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.077316][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.077318][   T69]  ? 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))
[   17.077321][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.077324][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.077328][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.077333][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.077335][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.077340][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.077343][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.077345][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.077347][   T69]  ? 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)
[   17.077351][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.077353][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.077356][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.077359][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.077360][   T69]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.077366][   T69]  _printk (kernel/printk/printk.c:2504)
[   17.077369][   T69]  ? snapshot_read.cold (user.c:?)
[   17.077377][   T69]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   17.077382][   T69]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   17.077385][   T69]  br_device_event (net/bridge/br.c:111)
[   17.077388][   T69]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   17.077392][   T69]  ? packet_sendmsg_spkt (af_packet.c:?)
[   17.077398][   T69]  notifier_call_chain (kernel/notifier.c:85)
[   17.077404][   T69]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   17.077407][   T69]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   17.077410][   T69]  ? __dev_close_many (net/core/dev.c:1804)
[   17.077414][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   17.077418][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   17.077420][   T69]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.077422][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.077424][   T69]  ? kthread (kernel/kthread.c:436)
[   17.077426][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   17.077429][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   17.077432][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   17.077440][   T69]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   17.077443][   T69]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   17.077446][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.077448][   T69]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   17.077453][   T69]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.077457][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.077459][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   17.077461][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.077464][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   17.077469][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   17.077472][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.077476][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.077478][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.077481][   T69]  process_one_work (kernel/workqueue.c:3387)
[   17.077488][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   17.077491][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.077499][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.077503][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.077506][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   17.077509][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.077511][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.077513][   T69]  kthread (kernel/kthread.c:436)
[   17.077515][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.077519][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.077522][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.077524][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   17.077528][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.077531][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.077534][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.076018][  T397] softirqs last disabled at (41230): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   20.076021][  T397] Preemption disabled at:
| [   20.076021][  T397] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.076029][  T397] Tainted: [W]=WARN
[   20.076030][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.076032][  T397] Call Trace:
[   20.076034][  T397]  <TASK>
[   20.076035][  T397]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.076041][  T397]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.076043][  T397]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.076047][  T397]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.076052][  T397]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.076056][  T397]  __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))
[   20.076058][  T397]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.076064][  T397]  ? 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)
[   20.076067][  T397]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.076071][  T397]  put_chars (drivers/char/virtio_console.c:1176)
[   20.076073][  T397]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.076084][  T397]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.076091][  T397]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.076094][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.076099][  T397]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.076103][  T397]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.076105][  T397]  ? 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))
[   20.076108][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076110][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.076114][  T397]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.076118][  T397]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.076120][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.076125][  T397]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.076128][  T397]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.076130][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076132][  T397]  ? 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)
[   20.076135][  T397]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.076137][  T397]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.076140][  T397]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.076143][  T397]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.076145][  T397]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   20.076150][  T397]  _printk (kernel/printk/printk.c:2504)
[   20.076154][  T397]  ? snapshot_read.cold (user.c:?)
[   20.076156][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.076158][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.076161][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.076163][  T397]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.076167][  T397]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.076170][  T397]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.076172][  T397]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.076175][  T397]  ? netdev_notice (net/core/dev.c:13194)
[   20.076178][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.076181][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.076183][  T397]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   20.076187][  T397]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.076189][  T397]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   20.076191][  T397]  ? register_netdev (net/core/dev.c:11618)
[   20.076192][  T397]  ? 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))
[   20.076197][  T397]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   20.076200][  T397]  ? __kernel_text_address (kernel/extable.c:79)
[   20.076202][  T397]  ? write_profile (profile.c:?)
[   20.076206][  T397]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   20.076212][  T397]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.076215][  T397]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.076217][  T397]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.076218][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.076220][  T397]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.076223][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.076225][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.076227][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.076230][  T397]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.076231][  T397]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.076233][  T397]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.076234][  T397]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.076236][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.076238][  T397]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   20.076241][  T397]  ? ___sys_sendmsg (net/socket.c:2758)
[   20.076244][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.076246][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.076249][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076251][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.076252][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076253][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076255][  T397]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.076257][  T397]  ? __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)
[   20.076258][  T397]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.076260][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.076264][  T397]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.076265][  T397]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.076269][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076272][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.076277][  T397]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.076282][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.076284][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.076288][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.076290][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.076292][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.076294][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.076297][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.076299][  T397]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.076302][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.076304][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.076308][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.076312][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.076316][  T397]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.076319][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.076322][  T397]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.076328][  T397]  ? 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))
[   20.076330][  T397]  ? 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))
[   20.076335][  T397]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.076338][  T397]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.076341][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.076345][  T397]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.076349][  T397]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.076353][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.076354][  T397]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.076360][  T397]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.076362][  T397]  ____sys_sendmsg (net/socket.c:2713)
[   20.076364][  T397]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.076367][  T397]  ? sock_write_iter (net/socket.c:1269)
[   20.076368][  T397]  ? move_addr_to_kernel (net/socket.c:258)
[   20.076375][  T397]  ___sys_sendmsg (net/socket.c:2767)
[   20.076378][  T397]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.076393][  T397]  __sys_sendmsg (net/socket.c:2799)
[   20.076396][  T397]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.076402][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.076405][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.076408][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.076411][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.076413][  T397] RIP: 0033:0x7fbe8e4da54e
[   20.076417][  T397] 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
[   20.076419][  T397] RSP: 002b:00007ffe7f83a630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.076422][  T397] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fbe8e4da54e
[   20.076423][  T397] RDX: 0000000000000000 RSI: 00007ffe7f83a6e0 RDI: 0000000000000005
[   20.076424][  T397] RBP: 00007ffe7f83a640 R08: 0000000000000000 R09: 0000000000000000
[   20.076425][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1c5
[   20.076425][  T397] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe7f83ada0
| [   21.147974][  T420] softirqs last disabled at (16806): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.147976][  T420] Preemption disabled at:
| [   21.147977][  T420] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.147985][  T420] Tainted: [W]=WARN
[   21.147986][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.147988][  T420] Call Trace:
[   21.147989][  T420]  <TASK>
[   21.147991][  T420]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.147997][  T420]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.147998][  T420]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.148003][  T420]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.148007][  T420]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.148012][  T420]  __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))
[   21.148014][  T420]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.148020][  T420]  ? 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)
[   21.148023][  T420]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.148026][  T420]  put_chars (drivers/char/virtio_console.c:1176)
[   21.148029][  T420]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.148030][  T420]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.148034][  T420]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.148039][  T420]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.148046][  T420]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.148049][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148051][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.148055][  T420]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.148059][  T420]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.148061][  T420]  ? 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))
[   21.148064][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148066][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.148069][  T420]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.148074][  T420]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.148075][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.148085][  T420]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.148088][  T420]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.148090][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148091][  T420]  ? 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)
[   21.148095][  T420]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.148097][  T420]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.148099][  T420]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.148102][  T420]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.148104][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.148107][  T420]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.148111][  T420]  _printk (kernel/printk/printk.c:2504)
[   21.148114][  T420]  ? snapshot_read.cold (user.c:?)
[   21.148118][  T420]  ? br_multicast_flood (??:?)
[   21.148121][  T420]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.148122][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.148124][  T420]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.148128][  T420]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.148132][  T420]  br_init_port (net/bridge/br_stp_if.c:39)
[   21.148135][  T420]  new_nbp (net/bridge/br_if.c:449)
[   21.148138][  T420]  br_add_if (net/bridge/br_if.c:592)
[   21.148141][  T420]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   21.148144][  T420]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.148150][  T420]  do_set_master (net/core/rtnetlink.c:3071)
[   21.148153][  T420]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.148156][  T420]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.148160][  T420]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.148161][  T420]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.148164][  T420]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.148167][  T420]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.148169][  T420]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.148171][  T420]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.148173][  T420]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.148175][  T420]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.148176][  T420]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.148178][  T420]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.148180][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.148182][  T420]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.148184][  T420]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.148188][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.148190][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.148192][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148194][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.148196][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148197][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148198][  T420]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.148201][  T420]  ? __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)
[   21.148203][  T420]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.148205][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.148209][  T420]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.148210][  T420]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.148215][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148217][  T420]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.148222][  T420]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.148227][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.148229][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.148233][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.148235][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.148237][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.148239][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.148242][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.148244][  T420]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.148247][  T420]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.148249][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.148253][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.148255][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.148258][  T420]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.148261][  T420]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.148264][  T420]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.148270][  T420]  ? 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))
[   21.148273][  T420]  ? 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))
[   21.148277][  T420]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.148281][  T420]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.148283][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.148287][  T420]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.148291][  T420]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.148295][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.148297][  T420]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.148302][  T420]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.148304][  T420]  ____sys_sendmsg (net/socket.c:2713)
[   21.148307][  T420]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.148309][  T420]  ? sock_write_iter (net/socket.c:1269)
[   21.148312][  T420]  ? move_addr_to_kernel (net/socket.c:258)
[   21.148320][  T420]  ___sys_sendmsg (net/socket.c:2767)
[   21.148322][  T420]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.148338][  T420]  __sys_sendmsg (net/socket.c:2799)
[   21.148341][  T420]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.148347][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.148350][  T420]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.148353][  T420]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.148356][  T420]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.148358][  T420] RIP: 0033:0x7f1e5f9d554e
[   21.148361][  T420] 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
[   21.148363][  T420] RSP: 002b:00007ffef23014d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.148366][  T420] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1e5f9d554e
[   21.148367][  T420] RDX: 0000000000000000 RSI: 00007ffef2301580 RDI: 0000000000000005
[   21.148368][  T420] RBP: 00007ffef23014e0 R08: 0000000000000000 R09: 0000000000000000
[   21.148369][  T420] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1c6
[   21.148370][  T420] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffef2301c50
| [   25.820374][   T69] softirqs last disabled at (215708): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   25.820376][   T69] Preemption disabled at:
| [   25.820377][   T69] 0x0
| [   25.820387][   T69] Tainted: [W]=WARN
[   25.820388][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.820390][   T69] Workqueue: netns cleanup_net
[   25.820393][   T69] Call Trace:
[   25.820394][   T69]  <TASK>
[   25.820396][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.820403][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.820407][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.820412][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.820416][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   25.820419][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.820425][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.820428][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.820432][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   25.820434][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.820441][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.820449][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.820452][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.820457][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.820461][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.820463][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   25.820466][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.820469][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.820473][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.820477][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.820479][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.820485][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.820488][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.820489][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.820491][   T69]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   25.820495][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.820497][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.820500][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.820503][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.820504][   T69]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.820507][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.820509][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.820514][   T69]  _printk (kernel/printk/printk.c:2504)
[   25.820517][   T69]  ? snapshot_read.cold (user.c:?)
[   25.820525][   T69]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   25.820530][   T69]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   25.820533][   T69]  br_device_event (net/bridge/br.c:111)
[   25.820535][   T69]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   25.820539][   T69]  ? packet_sendmsg_spkt (af_packet.c:?)
[   25.820545][   T69]  notifier_call_chain (kernel/notifier.c:85)
[   25.820552][   T69]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   25.820555][   T69]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   25.820558][   T69]  ? __dev_close_many (net/core/dev.c:1804)
[   25.820561][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   25.820565][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   25.820568][   T69]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   25.820570][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   25.820572][   T69]  ? kthread (kernel/kthread.c:436)
[   25.820574][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   25.820577][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   25.820580][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   25.820588][   T69]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   25.820591][   T69]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   25.820593][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.820596][   T69]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   25.820600][   T69]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   25.820604][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.820607][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   25.820608][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.820611][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   25.820616][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   25.820619][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.820623][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.820625][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.820629][   T69]  process_one_work (kernel/workqueue.c:3387)
[   25.820635][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   25.820638][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.820646][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   25.820651][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.820653][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   25.820656][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.820658][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.820660][   T69]  kthread (kernel/kthread.c:436)
[   25.820662][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.820666][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.820669][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.820671][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   25.820675][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.820679][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.820681][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.271692][  T523] softirqs last disabled at (44542): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   28.271694][  T523] Preemption disabled at:
| [   28.271695][  T523] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.271703][  T523] Tainted: [W]=WARN
[   28.271704][  T523] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.271705][  T523] Call Trace:
[   28.271707][  T523]  <TASK>
[   28.271708][  T523]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.271714][  T523]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.271716][  T523]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.271721][  T523]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.271725][  T523]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.271729][  T523]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   28.271731][  T523]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.271737][  T523]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.271740][  T523]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.271744][  T523]  put_chars (drivers/char/virtio_console.c:1176)
[   28.271746][  T523]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.271752][  T523]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.271759][  T523]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.271762][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.271767][  T523]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.271771][  T523]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.271773][  T523]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   28.271776][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.271778][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.271782][  T523]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.271786][  T523]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.271788][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.271794][  T523]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.271798][  T523]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.271800][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.271802][  T523]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   28.271806][  T523]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.271807][  T523]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.271810][  T523]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.271813][  T523]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.271816][  T523]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   28.271821][  T523]  _printk (kernel/printk/printk.c:2504)
[   28.271824][  T523]  ? snapshot_read.cold (user.c:?)
[   28.271826][  T523]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.271828][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.271831][  T523]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.271833][  T523]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.271837][  T523]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.271840][  T523]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   28.271842][  T523]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.271845][  T523]  ? netdev_notice (net/core/dev.c:13194)
[   28.271847][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.271850][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.271853][  T523]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   28.271856][  T523]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   28.271858][  T523]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   28.271860][  T523]  ? register_netdev (net/core/dev.c:11618)
[   28.271862][  T523]  ? 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))
[   28.271867][  T523]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   28.271869][  T523]  ? __kernel_text_address (kernel/extable.c:79)
[   28.271872][  T523]  ? write_profile (profile.c:?)
[   28.271876][  T523]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   28.271881][  T523]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   28.271885][  T523]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.271887][  T523]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.271888][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.271890][  T523]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.271893][  T523]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.271895][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.271897][  T523]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.271899][  T523]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.271901][  T523]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.271902][  T523]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.271904][  T523]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.271906][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.271908][  T523]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   28.271910][  T523]  ? ___sys_sendmsg (net/socket.c:2758)
[   28.271914][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.271916][  T523]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.271919][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.271921][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.271922][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.271923][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.271925][  T523]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.271927][  T523]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   28.271928][  T523]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.271930][  T523]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.271934][  T523]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.271935][  T523]  ? nla_get_range_signed (lib/nlattr.c:270)
[   28.271940][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.271942][  T523]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.271947][  T523]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.271952][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.271954][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.271959][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.271960][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.271962][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.271964][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.271968][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.271970][  T523]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.271973][  T523]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.271974][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.271979][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.271980][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.271984][  T523]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.271987][  T523]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.271990][  T523]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.271996][  T523]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.271998][  T523]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.272002][  T523]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.272006][  T523]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.272008][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.272012][  T523]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.272016][  T523]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.272020][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.272022][  T523]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   28.272027][  T523]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   28.272030][  T523]  ____sys_sendmsg (net/socket.c:2713)
[   28.272032][  T523]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.272034][  T523]  ? sock_write_iter (net/socket.c:1269)
[   28.272036][  T523]  ? move_addr_to_kernel (net/socket.c:258)
[   28.272043][  T523]  ___sys_sendmsg (net/socket.c:2767)
[   28.272046][  T523]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.272061][  T523]  __sys_sendmsg (net/socket.c:2799)
[   28.272064][  T523]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.272070][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.272073][  T523]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.272075][  T523]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.272078][  T523]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.272080][  T523] RIP: 0033:0x7fd26d0b254e
[   28.272084][  T523] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   28.272086][  T523] RSP: 002b:00007ffcd0eae3b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.272088][  T523] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fd26d0b254e
[   28.272090][  T523] RDX: 0000000000000000 RSI: 00007ffcd0eae460 RDI: 0000000000000005
[   28.272091][  T523] RBP: 00007ffcd0eae3c0 R08: 0000000000000000 R09: 0000000000000000
[   28.272092][  T523] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1cd
[   28.272092][  T523] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd0eaeb20
| [   33.960565][  T583] softirqs last disabled at (44984): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   33.960567][  T583] Preemption disabled at:
| [   33.960568][  T583] vprintk_emit (kernel/printk/printk.c:2471)
| [   33.960576][  T583] Tainted: [W]=WARN
[   33.960577][  T583] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.960579][  T583] Call Trace:
[   33.960580][  T583]  <TASK>
[   33.960581][  T583]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   33.960587][  T583]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   33.960589][  T583]  __might_resched.cold (kernel/sched/core.c:9234)
[   33.960593][  T583]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   33.960598][  T583]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   33.960602][  T583]  __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))
[   33.960604][  T583]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.960610][  T583]  ? 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)
[   33.960613][  T583]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.960617][  T583]  put_chars (drivers/char/virtio_console.c:1176)
[   33.960619][  T583]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   33.960625][  T583]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   33.960633][  T583]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   33.960636][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.960640][  T583]  console_emit_next_record (kernel/printk/printk.c:3183)
[   33.960644][  T583]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   33.960646][  T583]  ? 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))
[   33.960649][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960652][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.960656][  T583]  console_flush_one_record (kernel/printk/printk.c:3268)
[   33.960660][  T583]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   33.960662][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.960667][  T583]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   33.960670][  T583]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   33.960672][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960673][  T583]  ? 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)
[   33.960677][  T583]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   33.960679][  T583]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   33.960681][  T583]  vprintk_emit (kernel/printk/printk.c:2479)
[   33.960684][  T583]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   33.960686][  T583]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   33.960688][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   33.960690][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.960693][  T583]  _printk (kernel/printk/printk.c:2504)
[   33.960697][  T583]  ? snapshot_read.cold (user.c:?)
[   33.960698][  T583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   33.960701][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   33.960704][  T583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   33.960706][  T583]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   33.960710][  T583]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   33.960713][  T583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   33.960715][  T583]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   33.960718][  T583]  ? netdev_notice (net/core/dev.c:13194)
[   33.960720][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   33.960723][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   33.960726][  T583]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   33.960729][  T583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   33.960731][  T583]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   33.960734][  T583]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   33.960737][  T583]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   33.960742][  T583]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   33.960747][  T583]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   33.960751][  T583]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   33.960754][  T583]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   33.960755][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   33.960757][  T583]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   33.960760][  T583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   33.960762][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   33.960764][  T583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   33.960766][  T583]  ? kasan_save_stack (mm/kasan/common.c:58)
[   33.960768][  T583]  ? kasan_save_stack (mm/kasan/common.c:57)
[   33.960770][  T583]  ? kasan_save_track (mm/kasan/common.c:78)
[   33.960771][  T583]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   33.960773][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.960775][  T583]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   33.960778][  T583]  ? ___sys_sendmsg (net/socket.c:2758)
[   33.960782][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.960783][  T583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   33.960786][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960788][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.960789][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960790][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960792][  T583]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   33.960794][  T583]  ? __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)
[   33.960797][  T583]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   33.960799][  T583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   33.960802][  T583]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   33.960803][  T583]  ? nla_get_range_signed (lib/nlattr.c:270)
[   33.960808][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960810][  T583]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   33.960815][  T583]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   33.960820][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   33.960822][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.960827][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.960829][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   33.960830][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   33.960832][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   33.960836][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   33.960838][  T583]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   33.960841][  T583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   33.960842][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.960846][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.960848][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   33.960852][  T583]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   33.960855][  T583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   33.960858][  T583]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   33.960864][  T583]  ? 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))
[   33.960866][  T583]  ? 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))
[   33.960870][  T583]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   33.960874][  T583]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   33.960877][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   33.960881][  T583]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   33.960885][  T583]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   33.960888][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   33.960890][  T583]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   33.960895][  T583]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   33.960898][  T583]  ____sys_sendmsg (net/socket.c:2713)
[   33.960900][  T583]  ? copy_msghdr_from_user (net/socket.c:2650)
[   33.960902][  T583]  ? sock_write_iter (net/socket.c:1269)
[   33.960904][  T583]  ? move_addr_to_kernel (net/socket.c:258)
[   33.960911][  T583]  ___sys_sendmsg (net/socket.c:2767)
[   33.960914][  T583]  ? copy_msghdr_from_user (net/socket.c:2619)
[   33.960929][  T583]  __sys_sendmsg (net/socket.c:2799)
[   33.960932][  T583]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   33.960938][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.960941][  T583]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   33.960944][  T583]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   33.960947][  T583]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   33.960949][  T583] RIP: 0033:0x7feb71d2c54e
[   33.960952][  T583] 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
[   33.960954][  T583] RSP: 002b:00007ffce3d78330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   33.960957][  T583] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007feb71d2c54e
[   33.960958][  T583] RDX: 0000000000000000 RSI: 00007ffce3d783e0 RDI: 0000000000000005
[   33.960959][  T583] RBP: 00007ffce3d78340 R08: 0000000000000000 R09: 0000000000000000
[   33.960960][  T583] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1d3
[   33.960961][  T583] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce3d78aa0
| [   34.983995][  T630] softirqs last disabled at (30812): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   34.983998][  T630] Preemption disabled at:
| [   34.983999][  T630] vprintk_emit (kernel/printk/printk.c:2471)
| [   34.984007][  T630] Tainted: [W]=WARN
[   34.984008][  T630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.984010][  T630] Call Trace:
[   34.984011][  T630]  <TASK>
[   34.984013][  T630]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   34.984019][  T630]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   34.984020][  T630]  __might_resched.cold (kernel/sched/core.c:9234)
[   34.984025][  T630]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   34.984029][  T630]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   34.984033][  T630]  __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))
[   34.984035][  T630]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.984041][  T630]  ? 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)
[   34.984044][  T630]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.984048][  T630]  put_chars (drivers/char/virtio_console.c:1176)
[   34.984050][  T630]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   34.984056][  T630]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   34.984063][  T630]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   34.984067][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.984071][  T630]  console_emit_next_record (kernel/printk/printk.c:3183)
[   34.984075][  T630]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   34.984077][  T630]  ? 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))
[   34.984080][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984083][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.984087][  T630]  console_flush_one_record (kernel/printk/printk.c:3268)
[   34.984091][  T630]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   34.984093][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.984098][  T630]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   34.984101][  T630]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   34.984103][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984104][  T630]  ? 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)
[   34.984108][  T630]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   34.984110][  T630]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   34.984112][  T630]  vprintk_emit (kernel/printk/printk.c:2479)
[   34.984115][  T630]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   34.984117][  T630]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   34.984119][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.984121][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.984124][  T630]  _printk (kernel/printk/printk.c:2504)
[   34.984128][  T630]  ? snapshot_read.cold (user.c:?)
[   34.984130][  T630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   34.984132][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   34.984135][  T630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   34.984137][  T630]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   34.984141][  T630]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   34.984143][  T630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   34.984146][  T630]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   34.984148][  T630]  ? netdev_notice (net/core/dev.c:13194)
[   34.984151][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.984160][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   34.984162][  T630]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   34.984166][  T630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   34.984168][  T630]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   34.984171][  T630]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   34.984174][  T630]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   34.984179][  T630]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   34.984184][  T630]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   34.984187][  T630]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   34.984191][  T630]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   34.984192][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   34.984195][  T630]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   34.984198][  T630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   34.984200][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   34.984202][  T630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   34.984204][  T630]  ? kasan_save_stack (mm/kasan/common.c:58)
[   34.984206][  T630]  ? kasan_save_stack (mm/kasan/common.c:57)
[   34.984207][  T630]  ? kasan_save_track (mm/kasan/common.c:78)
[   34.984208][  T630]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   34.984210][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.984212][  T630]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   34.984215][  T630]  ? ___sys_sendmsg (net/socket.c:2758)
[   34.984219][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   34.984221][  T630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   34.984223][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984225][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.984227][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984228][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984229][  T630]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   34.984232][  T630]  ? __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)
[   34.984234][  T630]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   34.984236][  T630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   34.984240][  T630]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   34.984241][  T630]  ? nla_get_range_signed (lib/nlattr.c:270)
[   34.984246][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984248][  T630]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   34.984253][  T630]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   34.984258][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.984260][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.984265][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   34.984266][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.984268][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.984270][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   34.984274][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.984276][  T630]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.984279][  T630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.984280][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.984285][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   34.984286][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.984290][  T630]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   34.984293][  T630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.984296][  T630]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   34.984302][  T630]  ? 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))
[   34.984304][  T630]  ? 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))
[   34.984308][  T630]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.984314][  T630]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   34.984316][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   34.984321][  T630]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.984325][  T630]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   34.984328][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   34.984330][  T630]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   34.984335][  T630]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   34.984338][  T630]  ____sys_sendmsg (net/socket.c:2713)
[   34.984340][  T630]  ? copy_msghdr_from_user (net/socket.c:2650)
[   34.984342][  T630]  ? sock_write_iter (net/socket.c:1269)
[   34.984344][  T630]  ? move_addr_to_kernel (net/socket.c:258)
[   34.984351][  T630]  ___sys_sendmsg (net/socket.c:2767)
[   34.984353][  T630]  ? copy_msghdr_from_user (net/socket.c:2619)
[   34.984369][  T630]  __sys_sendmsg (net/socket.c:2799)
[   34.984372][  T630]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   34.984378][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.984381][  T630]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.984384][  T630]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   34.984386][  T630]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.984388][  T630] RIP: 0033:0x7f8f6446c54e
[   34.984392][  T630] 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
[   34.984394][  T630] RSP: 002b:00007ffff739e260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   34.984396][  T630] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8f6446c54e
[   34.984398][  T630] RDX: 0000000000000000 RSI: 00007ffff739e310 RDI: 0000000000000005
[   34.984399][  T630] RBP: 00007ffff739e270 R08: 0000000000000000 R09: 0000000000000000
[   34.984400][  T630] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1d4
[   34.984400][  T630] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff739e9d0
| [   36.022898][  T677] softirqs last disabled at (41980): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   36.022900][  T677] Preemption disabled at:
| [   36.022901][  T677] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.022909][  T677] Tainted: [W]=WARN
[   36.022910][  T677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.022912][  T677] Call Trace:
[   36.022914][  T677]  <TASK>
[   36.022915][  T677]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.022921][  T677]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.022923][  T677]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.022928][  T677]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.022932][  T677]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.022936][  T677]  __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))
[   36.022938][  T677]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.022944][  T677]  ? 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)
[   36.022947][  T677]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.022951][  T677]  put_chars (drivers/char/virtio_console.c:1176)
[   36.022953][  T677]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.022959][  T677]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.022967][  T677]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.022970][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.022975][  T677]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.022979][  T677]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.022980][  T677]  ? 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))
[   36.022983][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.022986][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.022990][  T677]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.022994][  T677]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.022996][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.023001][  T677]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.023004][  T677]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.023006][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.023008][  T677]  ? 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)
[   36.023011][  T677]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.023013][  T677]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.023016][  T677]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.023019][  T677]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.023021][  T677]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   36.023023][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.023024][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.023028][  T677]  _printk (kernel/printk/printk.c:2504)
[   36.023032][  T677]  ? snapshot_read.cold (user.c:?)
[   36.023034][  T677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.023036][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.023040][  T677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.023042][  T677]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.023046][  T677]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.023048][  T677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.023051][  T677]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.023053][  T677]  ? netdev_notice (net/core/dev.c:13194)
[   36.023056][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.023059][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.023062][  T677]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.023065][  T677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.023067][  T677]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   36.023070][  T677]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   36.023074][  T677]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   36.023078][  T677]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   36.023083][  T677]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.023087][  T677]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   36.023090][  T677]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   36.023092][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.023093][  T677]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.023097][  T677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.023099][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.023100][  T677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.023103][  T677]  ? kasan_save_stack (mm/kasan/common.c:58)
[   36.023104][  T677]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.023106][  T677]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.023107][  T677]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.023109][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.023111][  T677]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   36.023114][  T677]  ? ___sys_sendmsg (net/socket.c:2758)
[   36.023117][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.023119][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.023122][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.023124][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.023125][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.023126][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.023128][  T677]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   36.023130][  T677]  ? __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)
[   36.023133][  T677]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   36.023135][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.023138][  T677]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   36.023140][  T677]  ? nla_get_range_signed (lib/nlattr.c:270)
[   36.023144][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.023147][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   36.023152][  T677]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.023157][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.023164][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.023168][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.023170][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.023172][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.023174][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.023177][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.023179][  T677]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.023182][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.023184][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.023188][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.023190][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.023194][  T677]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.023197][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.023199][  T677]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.023206][  T677]  ? 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))
[   36.023208][  T677]  ? 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))
[   36.023212][  T677]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.023216][  T677]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.023219][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.023223][  T677]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.023227][  T677]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.023230][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.023232][  T677]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.023237][  T677]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.023240][  T677]  ____sys_sendmsg (net/socket.c:2713)
[   36.023242][  T677]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.023244][  T677]  ? sock_write_iter (net/socket.c:1269)
[   36.023246][  T677]  ? move_addr_to_kernel (net/socket.c:258)
[   36.023253][  T677]  ___sys_sendmsg (net/socket.c:2767)
[   36.023256][  T677]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.023271][  T677]  __sys_sendmsg (net/socket.c:2799)
[   36.023274][  T677]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.023280][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.023283][  T677]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.023286][  T677]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.023289][  T677]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.023291][  T677] RIP: 0033:0x7f2a374c754e
[   36.023295][  T677] 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
[   36.023296][  T677] RSP: 002b:00007fffd4f6b510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.023299][  T677] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f2a374c754e
[   36.023301][  T677] RDX: 0000000000000000 RSI: 00007fffd4f6b5c0 RDI: 0000000000000005
[   36.023301][  T677] RBP: 00007fffd4f6b520 R08: 0000000000000000 R09: 0000000000000000
[   36.023302][  T677] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1d5
[   36.023303][  T677] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd4f6bc80
| [   37.039198][  T724] softirqs last disabled at (35762): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   37.039201][  T724] Preemption disabled at:
| [   37.039202][  T724] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.039210][  T724] Tainted: [W]=WARN
[   37.039211][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.039212][  T724] Call Trace:
[   37.039214][  T724]  <TASK>
[   37.039216][  T724]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.039221][  T724]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.039223][  T724]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.039228][  T724]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.039232][  T724]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   37.039237][  T724]  __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))
[   37.039238][  T724]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.039245][  T724]  ? 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)
[   37.039248][  T724]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.039251][  T724]  put_chars (drivers/char/virtio_console.c:1176)
[   37.039254][  T724]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.039260][  T724]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.039267][  T724]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.039270][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.039275][  T724]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.039279][  T724]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.039280][  T724]  ? 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))
[   37.039284][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039287][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.039290][  T724]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.039295][  T724]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.039296][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.039302][  T724]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.039304][  T724]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.039306][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039308][  T724]  ? 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)
[   37.039313][  T724]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.039315][  T724]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.039318][  T724]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.039321][  T724]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.039323][  T724]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   37.039325][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.039327][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.039331][  T724]  _printk (kernel/printk/printk.c:2504)
[   37.039334][  T724]  ? snapshot_read.cold (user.c:?)
[   37.039336][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.039339][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.039341][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.039343][  T724]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   37.039347][  T724]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   37.039350][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.039352][  T724]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   37.039355][  T724]  ? netdev_notice (net/core/dev.c:13194)
[   37.039358][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.039360][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.039363][  T724]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   37.039366][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.039368][  T724]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   37.039371][  T724]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   37.039375][  T724]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   37.039379][  T724]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   37.039384][  T724]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.039388][  T724]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.039391][  T724]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.039393][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   37.039394][  T724]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   37.039398][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.039400][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.039401][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.039404][  T724]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.039406][  T724]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.039407][  T724]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.039408][  T724]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.039410][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.039412][  T724]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   37.039415][  T724]  ? ___sys_sendmsg (net/socket.c:2758)
[   37.039419][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.039421][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.039423][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039425][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.039427][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039428][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039429][  T724]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.039432][  T724]  ? __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)
[   37.039434][  T724]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.039436][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.039440][  T724]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.039441][  T724]  ? nla_get_range_signed (lib/nlattr.c:270)
[   37.039446][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039448][  T724]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.039453][  T724]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.039459][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.039460][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.039465][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.039467][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.039468][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.039470][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.039474][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.039476][  T724]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.039479][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.039480][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.039485][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.039486][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.039490][  T724]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.039493][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.039496][  T724]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.039502][  T724]  ? 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))
[   37.039504][  T724]  ? 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))
[   37.039508][  T724]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.039512][  T724]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.039515][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.039519][  T724]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.039523][  T724]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.039527][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.039528][  T724]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   37.039534][  T724]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   37.039536][  T724]  ____sys_sendmsg (net/socket.c:2713)
[   37.039539][  T724]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.039541][  T724]  ? sock_write_iter (net/socket.c:1269)
[   37.039542][  T724]  ? move_addr_to_kernel (net/socket.c:258)
[   37.039549][  T724]  ___sys_sendmsg (net/socket.c:2767)
[   37.039552][  T724]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.039568][  T724]  __sys_sendmsg (net/socket.c:2799)
[   37.039570][  T724]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.039576][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.039579][  T724]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.039582][  T724]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.039585][  T724]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.039587][  T724] RIP: 0033:0x7f789fb2054e
[   37.039591][  T724] 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
[   37.039593][  T724] RSP: 002b:00007ffd5a4b6700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.039595][  T724] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f789fb2054e
[   37.039597][  T724] RDX: 0000000000000000 RSI: 00007ffd5a4b67b0 RDI: 0000000000000005
[   37.039597][  T724] RBP: 00007ffd5a4b6710 R08: 0000000000000000 R09: 0000000000000000
[   37.039598][  T724] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1d6
[   37.039599][  T724] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd5a4b6e70
| [   40.357137][  T819] softirqs last disabled at (38040): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   40.357140][  T819] Preemption disabled at:
| [   40.357140][  T819] vprintk_emit (kernel/printk/printk.c:2471)
| [   40.357148][  T819] Tainted: [W]=WARN
[   40.357149][  T819] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.357151][  T819] Call Trace:
[   40.357153][  T819]  <TASK>
[   40.357154][  T819]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   40.357160][  T819]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   40.357161][  T819]  __might_resched.cold (kernel/sched/core.c:9234)
[   40.357166][  T819]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   40.357170][  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)
[   40.357175][  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))
[   40.357177][  T819]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.357187][  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)
[   40.357190][  T819]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.357193][  T819]  put_chars (drivers/char/virtio_console.c:1176)
[   40.357196][  T819]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   40.357202][  T819]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   40.357209][  T819]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   40.357212][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.357217][  T819]  console_emit_next_record (kernel/printk/printk.c:3183)
[   40.357221][  T819]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   40.357223][  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))
[   40.357226][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357229][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.357233][  T819]  console_flush_one_record (kernel/printk/printk.c:3268)
[   40.357237][  T819]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   40.357239][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.357244][  T819]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   40.357247][  T819]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   40.357249][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357251][  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)
[   40.357254][  T819]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   40.357256][  T819]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   40.357259][  T819]  vprintk_emit (kernel/printk/printk.c:2479)
[   40.357262][  T819]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   40.357264][  T819]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   40.357269][  T819]  _printk (kernel/printk/printk.c:2504)
[   40.357273][  T819]  ? snapshot_read.cold (user.c:?)
[   40.357275][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.357277][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.357280][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.357282][  T819]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   40.357286][  T819]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   40.357289][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.357291][  T819]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   40.357294][  T819]  ? netdev_notice (net/core/dev.c:13194)
[   40.357296][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.357299][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.357302][  T819]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   40.357305][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.357307][  T819]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   40.357312][  T819]  ? register_netdev (net/core/dev.c:11618)
[   40.357313][  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))
[   40.357318][  T819]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   40.357321][  T819]  ? __kernel_text_address (kernel/extable.c:79)
[   40.357323][  T819]  ? write_profile (profile.c:?)
[   40.357327][  T819]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   40.357333][  T819]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.357336][  T819]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   40.357338][  T819]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   40.357340][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.357342][  T819]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.357345][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.357347][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.357349][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.357351][  T819]  ? kasan_save_stack (mm/kasan/common.c:58)
[   40.357353][  T819]  ? kasan_save_stack (mm/kasan/common.c:57)
[   40.357354][  T819]  ? kasan_save_track (mm/kasan/common.c:78)
[   40.357355][  T819]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.357358][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.357359][  T819]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   40.357362][  T819]  ? ___sys_sendmsg (net/socket.c:2758)
[   40.357366][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.357368][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.357371][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357372][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.357374][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357375][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357377][  T819]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   40.357379][  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)
[   40.357380][  T819]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   40.357382][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.357385][  T819]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   40.357387][  T819]  ? nla_get_range_signed (lib/nlattr.c:270)
[   40.357391][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357394][  T819]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   40.357399][  T819]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   40.357404][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.357406][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.357410][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.357412][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.357414][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.357415][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.357419][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.357421][  T819]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.357424][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.357426][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.357430][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.357432][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.357435][  T819]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   40.357439][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.357441][  T819]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.357448][  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))
[   40.357450][  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))
[   40.357454][  T819]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.357458][  T819]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.357460][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.357464][  T819]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   40.357468][  T819]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   40.357472][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.357474][  T819]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   40.357479][  T819]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   40.357482][  T819]  ____sys_sendmsg (net/socket.c:2713)
[   40.357484][  T819]  ? copy_msghdr_from_user (net/socket.c:2650)
[   40.357486][  T819]  ? sock_write_iter (net/socket.c:1269)
[   40.357488][  T819]  ? move_addr_to_kernel (net/socket.c:258)
[   40.357495][  T819]  ___sys_sendmsg (net/socket.c:2767)
[   40.357498][  T819]  ? copy_msghdr_from_user (net/socket.c:2619)
[   40.357513][  T819]  __sys_sendmsg (net/socket.c:2799)
[   40.357516][  T819]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   40.357522][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.357525][  T819]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   40.357528][  T819]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   40.357531][  T819]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.357534][  T819] RIP: 0033:0x7fa1bca3a54e
[   40.357537][  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
[   40.357539][  T819] RSP: 002b:00007ffd05ca2f60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.357542][  T819] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fa1bca3a54e
[   40.357543][  T819] RDX: 0000000000000000 RSI: 00007ffd05ca3010 RDI: 0000000000000005
[   40.357544][  T819] RBP: 00007ffd05ca2f70 R08: 0000000000000000 R09: 0000000000000000
[   40.357545][  T819] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1d9
[   40.357545][  T819] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd05ca36d0
| [   47.991847][  T922] softirqs last disabled at (41296): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   47.991850][  T922] Preemption disabled at:
| [   47.991850][  T922] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.991859][  T922] Tainted: [W]=WARN
[   47.991860][  T922] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.991861][  T922] Call Trace:
[   47.991862][  T922]  <TASK>
[   47.991864][  T922]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.991870][  T922]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.991872][  T922]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.991877][  T922]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.991881][  T922]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.991885][  T922]  __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))
[   47.991887][  T922]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.991893][  T922]  ? 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)
[   47.991896][  T922]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.991900][  T922]  put_chars (drivers/char/virtio_console.c:1176)
[   47.991902][  T922]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.991908][  T922]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.991916][  T922]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.991919][  T922]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.991923][  T922]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.991927][  T922]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.991929][  T922]  ? 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))
[   47.991932][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.991935][  T922]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.991939][  T922]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.991943][  T922]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.991944][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.991950][  T922]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.991952][  T922]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.991954][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.991956][  T922]  ? 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)
[   47.991959][  T922]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.991961][  T922]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.991964][  T922]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.991967][  T922]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.991969][  T922]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   47.991974][  T922]  _printk (kernel/printk/printk.c:2504)
[   47.991978][  T922]  ? snapshot_read.cold (user.c:?)
[   47.991979][  T922]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.991982][  T922]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.991985][  T922]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.991987][  T922]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   47.991991][  T922]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   47.991993][  T922]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.991995][  T922]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   47.991998][  T922]  ? netdev_notice (net/core/dev.c:13194)
[   47.992001][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.992004][  T922]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.992006][  T922]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   47.992010][  T922]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.992012][  T922]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   47.992014][  T922]  ? register_netdev (net/core/dev.c:11618)
[   47.992015][  T922]  ? 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))
[   47.992020][  T922]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   47.992023][  T922]  ? __kernel_text_address (kernel/extable.c:79)
[   47.992026][  T922]  ? write_profile (profile.c:?)
[   47.992030][  T922]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   47.992035][  T922]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.992038][  T922]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   47.992040][  T922]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   47.992041][  T922]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   47.992043][  T922]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   47.992047][  T922]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.992049][  T922]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.992050][  T922]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.992053][  T922]  ? kasan_save_stack (mm/kasan/common.c:58)
[   47.992055][  T922]  ? kasan_save_stack (mm/kasan/common.c:57)
[   47.992056][  T922]  ? kasan_save_track (mm/kasan/common.c:78)
[   47.992057][  T922]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   47.992059][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.992061][  T922]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   47.992064][  T922]  ? ___sys_sendmsg (net/socket.c:2758)
[   47.992068][  T922]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.992070][  T922]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.992072][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.992074][  T922]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.992075][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.992076][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.992078][  T922]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   47.992080][  T922]  ? __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)
[   47.992081][  T922]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   47.992083][  T922]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.992086][  T922]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   47.992088][  T922]  ? nla_get_range_signed (lib/nlattr.c:270)
[   47.992093][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.992095][  T922]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   47.992100][  T922]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   47.992105][  T922]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.992107][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.992111][  T922]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.992113][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.992115][  T922]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.992116][  T922]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.992120][  T922]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.992122][  T922]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   47.992125][  T922]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.992126][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.992130][  T922]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.992132][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.992136][  T922]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   47.992139][  T922]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.992142][  T922]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   47.992148][  T922]  ? 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))
[   47.992150][  T922]  ? 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))
[   47.992154][  T922]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   47.992158][  T922]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   47.992160][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.992164][  T922]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   47.992168][  T922]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   47.992172][  T922]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.992173][  T922]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   47.992179][  T922]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   47.992181][  T922]  ____sys_sendmsg (net/socket.c:2713)
[   47.992184][  T922]  ? copy_msghdr_from_user (net/socket.c:2650)
[   47.992186][  T922]  ? sock_write_iter (net/socket.c:1269)
[   47.992187][  T922]  ? move_addr_to_kernel (net/socket.c:258)
[   47.992194][  T922]  ___sys_sendmsg (net/socket.c:2767)
[   47.992197][  T922]  ? copy_msghdr_from_user (net/socket.c:2619)
[   47.992212][  T922]  __sys_sendmsg (net/socket.c:2799)
[   47.992215][  T922]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   47.992221][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.992228][  T922]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   47.992232][  T922]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   47.992234][  T922]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.992237][  T922] RIP: 0033:0x7f33b2ccd54e
[   47.992240][  T922] 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
[   47.992242][  T922] RSP: 002b:00007fff06a0dca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   47.992245][  T922] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f33b2ccd54e
[   47.992246][  T922] RDX: 0000000000000000 RSI: 00007fff06a0dd50 RDI: 0000000000000005
[   47.992247][  T922] RBP: 00007fff06a0dcb0 R08: 0000000000000000 R09: 0000000000000000
[   47.992248][  T922] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1e1
[   47.992249][  T922] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff06a0e410
| [   55.413015][ T1031] softirqs last disabled at (40040): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   55.413017][ T1031] Preemption disabled at:
| [   55.413018][ T1031] vprintk_emit (kernel/printk/printk.c:2471)
| [   55.413026][ T1031] Tainted: [W]=WARN
[   55.413027][ T1031] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.413029][ T1031] Call Trace:
[   55.413030][ T1031]  <TASK>
[   55.413032][ T1031]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   55.413038][ T1031]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   55.413039][ T1031]  __might_resched.cold (kernel/sched/core.c:9234)
[   55.413044][ T1031]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   55.413048][ T1031]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   55.413052][ T1031]  __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))
[   55.413054][ T1031]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   55.413061][ T1031]  ? 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)
[   55.413064][ T1031]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   55.413067][ T1031]  put_chars (drivers/char/virtio_console.c:1176)
[   55.413069][ T1031]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   55.413076][ T1031]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   55.413083][ T1031]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   55.413086][ T1031]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.413090][ T1031]  console_emit_next_record (kernel/printk/printk.c:3183)
[   55.413094][ T1031]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   55.413096][ T1031]  ? 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))
[   55.413099][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413102][ T1031]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.413106][ T1031]  console_flush_one_record (kernel/printk/printk.c:3268)
[   55.413110][ T1031]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   55.413112][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.413117][ T1031]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   55.413120][ T1031]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   55.413122][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413124][ T1031]  ? 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)
[   55.413127][ T1031]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   55.413129][ T1031]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   55.413132][ T1031]  vprintk_emit (kernel/printk/printk.c:2479)
[   55.413135][ T1031]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   55.413137][ T1031]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   55.413142][ T1031]  _printk (kernel/printk/printk.c:2504)
[   55.413146][ T1031]  ? snapshot_read.cold (user.c:?)
[   55.413147][ T1031]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   55.413150][ T1031]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.413153][ T1031]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   55.413155][ T1031]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   55.413159][ T1031]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   55.413162][ T1031]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   55.413164][ T1031]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   55.413167][ T1031]  ? netdev_notice (net/core/dev.c:13194)
[   55.413169][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.413172][ T1031]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.413175][ T1031]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   55.413178][ T1031]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   55.413180][ T1031]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   55.413182][ T1031]  ? register_netdev (net/core/dev.c:11618)
[   55.413184][ T1031]  ? 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))
[   55.413189][ T1031]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   55.413192][ T1031]  ? __kernel_text_address (kernel/extable.c:79)
[   55.413194][ T1031]  ? write_profile (profile.c:?)
[   55.413198][ T1031]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   55.413204][ T1031]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   55.413207][ T1031]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   55.413209][ T1031]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   55.413210][ T1031]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   55.413212][ T1031]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   55.413215][ T1031]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   55.413218][ T1031]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.413219][ T1031]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   55.413222][ T1031]  ? kasan_save_stack (mm/kasan/common.c:58)
[   55.413224][ T1031]  ? kasan_save_stack (mm/kasan/common.c:57)
[   55.413225][ T1031]  ? kasan_save_track (mm/kasan/common.c:78)
[   55.413226][ T1031]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   55.413228][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.413230][ T1031]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   55.413233][ T1031]  ? ___sys_sendmsg (net/socket.c:2758)
[   55.413237][ T1031]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.413239][ T1031]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   55.413242][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413243][ T1031]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.413245][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413246][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413248][ T1031]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   55.413250][ T1031]  ? __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)
[   55.413251][ T1031]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   55.413253][ T1031]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   55.413256][ T1031]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   55.413257][ T1031]  ? nla_get_range_signed (lib/nlattr.c:270)
[   55.413262][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413268][ T1031]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   55.413273][ T1031]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   55.413279][ T1031]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   55.413280][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.413285][ T1031]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.413287][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.413289][ T1031]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   55.413290][ T1031]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.413294][ T1031]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   55.413296][ T1031]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   55.413299][ T1031]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   55.413301][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.413305][ T1031]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.413307][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.413313][ T1031]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   55.413316][ T1031]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   55.413319][ T1031]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   55.413325][ T1031]  ? 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))
[   55.413327][ T1031]  ? 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))
[   55.413332][ T1031]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   55.413335][ T1031]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   55.413338][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.413342][ T1031]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   55.413346][ T1031]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   55.413350][ T1031]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.413351][ T1031]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   55.413356][ T1031]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   55.413359][ T1031]  ____sys_sendmsg (net/socket.c:2713)
[   55.413361][ T1031]  ? copy_msghdr_from_user (net/socket.c:2650)
[   55.413364][ T1031]  ? sock_write_iter (net/socket.c:1269)
[   55.413365][ T1031]  ? move_addr_to_kernel (net/socket.c:258)
[   55.413372][ T1031]  ___sys_sendmsg (net/socket.c:2767)
[   55.413375][ T1031]  ? copy_msghdr_from_user (net/socket.c:2619)
[   55.413391][ T1031]  __sys_sendmsg (net/socket.c:2799)
[   55.413393][ T1031]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   55.413399][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.413402][ T1031]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   55.413405][ T1031]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   55.413408][ T1031]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.413410][ T1031] RIP: 0033:0x7fb25672354e
[   55.413414][ T1031] 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
[   55.413416][ T1031] RSP: 002b:00007ffc271bbcb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   55.413419][ T1031] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fb25672354e
[   55.413420][ T1031] RDX: 0000000000000000 RSI: 00007ffc271bbd60 RDI: 0000000000000005
[   55.413421][ T1031] RBP: 00007ffc271bbcc0 R08: 0000000000000000 R09: 0000000000000000
[   55.413422][ T1031] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1e8
[   55.413423][ T1031] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc271bc420
| [   61.322573][ T1093] softirqs last disabled at (38274): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   61.322576][ T1093] Preemption disabled at:
| [   61.322576][ T1093] vprintk_emit (kernel/printk/printk.c:2471)
| [   61.322585][ T1093] Tainted: [W]=WARN
[   61.322586][ T1093] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   61.322588][ T1093] Call Trace:
[   61.322589][ T1093]  <TASK>
[   61.322591][ T1093]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   61.322597][ T1093]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   61.322599][ T1093]  __might_resched.cold (kernel/sched/core.c:9234)
[   61.322603][ T1093]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   61.322608][ T1093]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   61.322612][ T1093]  __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))
[   61.322614][ T1093]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.322621][ T1093]  ? 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)
[   61.322623][ T1093]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.322627][ T1093]  put_chars (drivers/char/virtio_console.c:1176)
[   61.322630][ T1093]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   61.322636][ T1093]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   61.322643][ T1093]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   61.322647][ T1093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.322651][ T1093]  console_emit_next_record (kernel/printk/printk.c:3183)
[   61.322655][ T1093]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   61.322657][ T1093]  ? 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))
[   61.322660][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322663][ T1093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.322667][ T1093]  console_flush_one_record (kernel/printk/printk.c:3268)
[   61.322671][ T1093]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   61.322673][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.322678][ T1093]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   61.322681][ T1093]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   61.322683][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322685][ T1093]  ? 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)
[   61.322688][ T1093]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   61.322690][ T1093]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   61.322693][ T1093]  vprintk_emit (kernel/printk/printk.c:2479)
[   61.322696][ T1093]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   61.322698][ T1093]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   61.322700][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.322701][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.322705][ T1093]  _printk (kernel/printk/printk.c:2504)
[   61.322709][ T1093]  ? snapshot_read.cold (user.c:?)
[   61.322710][ T1093]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.322713][ T1093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   61.322716][ T1093]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.322718][ T1093]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   61.322722][ T1093]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   61.322724][ T1093]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   61.322727][ T1093]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   61.322729][ T1093]  ? netdev_notice (net/core/dev.c:13194)
[   61.322732][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.322735][ T1093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.322737][ T1093]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   61.322741][ T1093]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   61.322743][ T1093]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   61.322746][ T1093]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   61.322750][ T1093]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   61.322754][ T1093]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   61.322760][ T1093]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   61.322763][ T1093]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   61.322767][ T1093]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   61.322768][ T1093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   61.322770][ T1093]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   61.322773][ T1093]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.322775][ T1093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   61.322777][ T1093]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.322779][ T1093]  ? kasan_save_stack (mm/kasan/common.c:58)
[   61.322781][ T1093]  ? kasan_save_stack (mm/kasan/common.c:57)
[   61.322782][ T1093]  ? kasan_save_track (mm/kasan/common.c:78)
[   61.322783][ T1093]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   61.322786][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.322787][ T1093]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   61.322790][ T1093]  ? ___sys_sendmsg (net/socket.c:2758)
[   61.322794][ T1093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.322796][ T1093]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.322799][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322800][ T1093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.322802][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322803][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322805][ T1093]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   61.322807][ T1093]  ? __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)
[   61.322809][ T1093]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   61.322811][ T1093]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.322815][ T1093]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   61.322816][ T1093]  ? nla_get_range_signed (lib/nlattr.c:270)
[   61.322821][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322823][ T1093]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   61.322828][ T1093]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.322833][ T1093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.322835][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.322839][ T1093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.322841][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.322843][ T1093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.322845][ T1093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.322849][ T1093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.322851][ T1093]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.322854][ T1093]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.322855][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.322859][ T1093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.322861][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.322865][ T1093]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   61.322868][ T1093]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.322871][ T1093]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   61.322877][ T1093]  ? 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))
[   61.322879][ T1093]  ? 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))
[   61.322883][ T1093]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   61.322887][ T1093]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   61.322890][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.322894][ T1093]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   61.322898][ T1093]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   61.322901][ T1093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.322903][ T1093]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   61.322908][ T1093]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   61.322911][ T1093]  ____sys_sendmsg (net/socket.c:2713)
[   61.322913][ T1093]  ? copy_msghdr_from_user (net/socket.c:2650)
[   61.322916][ T1093]  ? sock_write_iter (net/socket.c:1269)
[   61.322917][ T1093]  ? move_addr_to_kernel (net/socket.c:258)
[   61.322924][ T1093]  ___sys_sendmsg (net/socket.c:2767)
[   61.322927][ T1093]  ? copy_msghdr_from_user (net/socket.c:2619)
[   61.322943][ T1093]  __sys_sendmsg (net/socket.c:2799)
[   61.322945][ T1093]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   61.322952][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.322955][ T1093]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   61.322958][ T1093]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   61.322960][ T1093]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   61.322962][ T1093] RIP: 0033:0x7f2e6d93d54e
[   61.322966][ T1093] 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
[   61.322968][ T1093] RSP: 002b:00007ffdaf855d60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   61.322970][ T1093] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f2e6d93d54e
[   61.322972][ T1093] RDX: 0000000000000000 RSI: 00007ffdaf855e10 RDI: 0000000000000005
[   61.322973][ T1093] RBP: 00007ffdaf855d70 R08: 0000000000000000 R09: 0000000000000000
[   61.322974][ T1093] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1ee
[   61.322974][ T1093] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdaf8564d0
| [   62.415458][ T1142] softirqs last disabled at (51714): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   62.415461][ T1142] Preemption disabled at:
| [   62.415461][ T1142] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.415469][ T1142] Tainted: [W]=WARN
[   62.415470][ T1142] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.415472][ T1142] Call Trace:
[   62.415473][ T1142]  <TASK>
[   62.415475][ T1142]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.415481][ T1142]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.415482][ T1142]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.415487][ T1142]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.415491][ T1142]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.415495][ T1142]  __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))
[   62.415497][ T1142]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.415504][ T1142]  ? 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)
[   62.415506][ T1142]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.415510][ T1142]  put_chars (drivers/char/virtio_console.c:1176)
[   62.415512][ T1142]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.415519][ T1142]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.415526][ T1142]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.415529][ T1142]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.415533][ T1142]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.415537][ T1142]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.415539][ T1142]  ? 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))
[   62.415542][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415545][ T1142]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.415549][ T1142]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.415553][ T1142]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.415555][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.415561][ T1142]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.415564][ T1142]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.415565][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415567][ T1142]  ? 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)
[   62.415571][ T1142]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.415573][ T1142]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.415575][ T1142]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.415578][ T1142]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.415580][ T1142]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   62.415582][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.415584][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.415588][ T1142]  _printk (kernel/printk/printk.c:2504)
[   62.415591][ T1142]  ? snapshot_read.cold (user.c:?)
[   62.415593][ T1142]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.415596][ T1142]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.415598][ T1142]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.415600][ T1142]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   62.415604][ T1142]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   62.415606][ T1142]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.415609][ T1142]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   62.415611][ T1142]  ? netdev_notice (net/core/dev.c:13194)
[   62.415614][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.415617][ T1142]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.415620][ T1142]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.415623][ T1142]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.415625][ T1142]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   62.415628][ T1142]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   62.415632][ T1142]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   62.415636][ T1142]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   62.415642][ T1142]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.415645][ T1142]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.415649][ T1142]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.415650][ T1142]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.415652][ T1142]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.415655][ T1142]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.415657][ T1142]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.415659][ T1142]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.415661][ T1142]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.415663][ T1142]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.415664][ T1142]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.415665][ T1142]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.415668][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.415670][ T1142]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.415672][ T1142]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.415676][ T1142]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.415678][ T1142]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.415681][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415682][ T1142]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.415684][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415685][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415687][ T1142]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.415689][ T1142]  ? __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)
[   62.415692][ T1142]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.415693][ T1142]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.415697][ T1142]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.415698][ T1142]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.415703][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415705][ T1142]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.415710][ T1142]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.415716][ T1142]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.415717][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.415722][ T1142]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.415724][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.415726][ T1142]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.415727][ T1142]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.415731][ T1142]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.415733][ T1142]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.415736][ T1142]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.415737][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.415742][ T1142]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.415744][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.415747][ T1142]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.415750][ T1142]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.415753][ T1142]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.415760][ T1142]  ? 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))
[   62.415762][ T1142]  ? 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))
[   62.415766][ T1142]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.415770][ T1142]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.415772][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.415777][ T1142]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.415781][ T1142]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.415784][ T1142]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.415786][ T1142]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.415791][ T1142]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.415794][ T1142]  ____sys_sendmsg (net/socket.c:2713)
[   62.415796][ T1142]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.415799][ T1142]  ? sock_write_iter (net/socket.c:1269)
[   62.415800][ T1142]  ? move_addr_to_kernel (net/socket.c:258)
[   62.415807][ T1142]  ___sys_sendmsg (net/socket.c:2767)
[   62.415810][ T1142]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.415826][ T1142]  __sys_sendmsg (net/socket.c:2799)
[   62.415829][ T1142]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.415835][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.415838][ T1142]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.415841][ T1142]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.415844][ T1142]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.415846][ T1142] RIP: 0033:0x7f40e63db54e
[   62.415850][ T1142] 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
[   62.415851][ T1142] RSP: 002b:00007ffcc8bf9950 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.415854][ T1142] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f40e63db54e
[   62.415855][ T1142] RDX: 0000000000000000 RSI: 00007ffcc8bf9a00 RDI: 0000000000000005
[   62.415856][ T1142] RBP: 00007ffcc8bf9960 R08: 0000000000000000 R09: 0000000000000000
[   62.415857][ T1142] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1ef
[   62.415858][ T1142] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcc8bfa0c0
| [   63.565024][ T1191] softirqs last disabled at (39198): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   63.565026][ T1191] Preemption disabled at:
| [   63.565027][ T1191] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.565035][ T1191] Tainted: [W]=WARN
[   63.565036][ T1191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.565038][ T1191] Call Trace:
[   63.565039][ T1191]  <TASK>
[   63.565041][ T1191]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.565047][ T1191]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.565048][ T1191]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.565053][ T1191]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.565057][ T1191]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.565062][ T1191]  __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))
[   63.565064][ T1191]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.565070][ T1191]  ? 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)
[   63.565073][ T1191]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.565076][ T1191]  put_chars (drivers/char/virtio_console.c:1176)
[   63.565079][ T1191]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.565085][ T1191]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.565092][ T1191]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.565095][ T1191]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.565100][ T1191]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.565104][ T1191]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.565105][ T1191]  ? 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))
[   63.565109][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565111][ T1191]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.565115][ T1191]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.565119][ T1191]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.565121][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.565126][ T1191]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.565129][ T1191]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.565131][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565133][ T1191]  ? 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)
[   63.565136][ T1191]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.565138][ T1191]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.565140][ T1191]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.565144][ T1191]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.565145][ T1191]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   63.565147][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.565149][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.565153][ T1191]  _printk (kernel/printk/printk.c:2504)
[   63.565156][ T1191]  ? snapshot_read.cold (user.c:?)
[   63.565158][ T1191]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.565160][ T1191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.565163][ T1191]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.565165][ T1191]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   63.565169][ T1191]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   63.565171][ T1191]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.565173][ T1191]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   63.565176][ T1191]  ? netdev_notice (net/core/dev.c:13194)
[   63.565179][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.565182][ T1191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.565184][ T1191]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.565188][ T1191]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.565190][ T1191]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   63.565192][ T1191]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   63.565196][ T1191]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   63.565200][ T1191]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   63.565206][ T1191]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.565209][ T1191]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.565213][ T1191]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.565214][ T1191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.565216][ T1191]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.565219][ T1191]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.565221][ T1191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.565223][ T1191]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.565225][ T1191]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.565227][ T1191]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.565228][ T1191]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.565229][ T1191]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.565232][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.565233][ T1191]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.565236][ T1191]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.565240][ T1191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.565242][ T1191]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.565244][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565246][ T1191]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.565247][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565248][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565250][ T1191]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.565252][ T1191]  ? __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)
[   63.565255][ T1191]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.565257][ T1191]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.565260][ T1191]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.565261][ T1191]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.565266][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565268][ T1191]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.565273][ T1191]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.565278][ T1191]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.565280][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.565284][ T1191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.565286][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.565288][ T1191]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.565290][ T1191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.565294][ T1191]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.565296][ T1191]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.565299][ T1191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.565300][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.565304][ T1191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.565306][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.565314][ T1191]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.565317][ T1191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.565320][ T1191]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.565326][ T1191]  ? 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))
[   63.565328][ T1191]  ? 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))
[   63.565333][ T1191]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.565336][ T1191]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.565339][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.565343][ T1191]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.565347][ T1191]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.565350][ T1191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.565352][ T1191]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.565357][ T1191]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.565360][ T1191]  ____sys_sendmsg (net/socket.c:2713)
[   63.565362][ T1191]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.565364][ T1191]  ? sock_write_iter (net/socket.c:1269)
[   63.565366][ T1191]  ? move_addr_to_kernel (net/socket.c:258)
[   63.565373][ T1191]  ___sys_sendmsg (net/socket.c:2767)
[   63.565376][ T1191]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.565391][ T1191]  __sys_sendmsg (net/socket.c:2799)
[   63.565393][ T1191]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.565400][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.565402][ T1191]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.565406][ T1191]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.565408][ T1191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.565410][ T1191] RIP: 0033:0x7f84488ab54e
[   63.565414][ T1191] 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
[   63.565416][ T1191] RSP: 002b:00007fff2ef3afc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.565418][ T1191] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f84488ab54e
[   63.565420][ T1191] RDX: 0000000000000000 RSI: 00007fff2ef3b070 RDI: 0000000000000005
[   63.565421][ T1191] RBP: 00007fff2ef3afd0 R08: 0000000000000000 R09: 0000000000000000
[   63.565421][ T1191] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1f0
[   63.565422][ T1191] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff2ef3b730
| [   64.754290][ T1240] softirqs last disabled at (40164): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   64.754293][ T1240] Preemption disabled at:
| [   64.754293][ T1240] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.754302][ T1240] Tainted: [W]=WARN
[   64.754303][ T1240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.754305][ T1240] Call Trace:
[   64.754306][ T1240]  <TASK>
[   64.754308][ T1240]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.754320][ T1240]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.754322][ T1240]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.754327][ T1240]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.754331][ T1240]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.754335][ T1240]  __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))
[   64.754337][ T1240]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.754343][ T1240]  ? 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)
[   64.754346][ T1240]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.754350][ T1240]  put_chars (drivers/char/virtio_console.c:1176)
[   64.754352][ T1240]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.754358][ T1240]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.754365][ T1240]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.754368][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.754373][ T1240]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.754376][ T1240]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.754378][ T1240]  ? 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))
[   64.754381][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754384][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.754388][ T1240]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.754392][ T1240]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.754394][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.754399][ T1240]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.754402][ T1240]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.754404][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754405][ T1240]  ? 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)
[   64.754409][ T1240]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.754411][ T1240]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.754413][ T1240]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.754417][ T1240]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.754418][ T1240]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   64.754420][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.754422][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.754426][ T1240]  _printk (kernel/printk/printk.c:2504)
[   64.754429][ T1240]  ? snapshot_read.cold (user.c:?)
[   64.754431][ T1240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.754433][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.754436][ T1240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.754438][ T1240]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.754442][ T1240]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.754445][ T1240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.754447][ T1240]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.754450][ T1240]  ? netdev_notice (net/core/dev.c:13194)
[   64.754453][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.754455][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.754458][ T1240]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.754461][ T1240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.754463][ T1240]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   64.754466][ T1240]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   64.754470][ T1240]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   64.754474][ T1240]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   64.754480][ T1240]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.754483][ T1240]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.754486][ T1240]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.754487][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.754489][ T1240]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.754493][ T1240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.754495][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.754496][ T1240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.754499][ T1240]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.754500][ T1240]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.754502][ T1240]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.754503][ T1240]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.754505][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.754507][ T1240]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.754510][ T1240]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.754513][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.754515][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.754518][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754520][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.754521][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754522][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754524][ T1240]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.754526][ T1240]  ? __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)
[   64.754529][ T1240]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.754531][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.754534][ T1240]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.754535][ T1240]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.754540][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754542][ T1240]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.754547][ T1240]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.754552][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.754554][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.754558][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.754560][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.754562][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.754564][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.754567][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.754569][ T1240]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.754573][ T1240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.754574][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.754578][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.754580][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.754583][ T1240]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.754586][ T1240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.754589][ T1240]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.754595][ T1240]  ? 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))
[   64.754597][ T1240]  ? 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))
[   64.754602][ T1240]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.754605][ T1240]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.754608][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.754612][ T1240]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.754616][ T1240]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.754620][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.754621][ T1240]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.754627][ T1240]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.754629][ T1240]  ____sys_sendmsg (net/socket.c:2713)
[   64.754631][ T1240]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.754634][ T1240]  ? sock_write_iter (net/socket.c:1269)
[   64.754635][ T1240]  ? move_addr_to_kernel (net/socket.c:258)
[   64.754642][ T1240]  ___sys_sendmsg (net/socket.c:2767)
[   64.754645][ T1240]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.754660][ T1240]  __sys_sendmsg (net/socket.c:2799)
[   64.754663][ T1240]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.754669][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.754672][ T1240]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.754675][ T1240]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.754678][ T1240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.754680][ T1240] RIP: 0033:0x7f3feb10c54e
[   64.754683][ T1240] 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
[   64.754685][ T1240] RSP: 002b:00007ffe595be180 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.754688][ T1240] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f3feb10c54e
[   64.754689][ T1240] RDX: 0000000000000000 RSI: 00007ffe595be230 RDI: 0000000000000005
[   64.754690][ T1240] RBP: 00007ffe595be190 R08: 0000000000000000 R09: 0000000000000000
[   64.754691][ T1240] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1f2


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