======================================
| [   11.308582][  T262] softirqs last disabled at (14440): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.308585][  T262] Preemption disabled at:
| [   11.308586][  T262] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.308595][  T262] Tainted: [W]=WARN
[   11.308596][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.308598][  T262] Call Trace:
[   11.308600][  T262]  <TASK>
[   11.308601][  T262]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.308607][  T262]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.308609][  T262]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.308614][  T262]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.308618][  T262]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.308623][  T262]  __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))
[   11.308626][  T262]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.308632][  T262]  ? 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)
[   11.308634][  T262]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.308638][  T262]  put_chars (drivers/char/virtio_console.c:1176)
[   11.308641][  T262]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.308645][  T262]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.308649][  T262]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.308652][  T262]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.308654][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308655][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308659][  T262]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.308661][  T262]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.308665][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.308669][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.308673][  T262]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.308676][  T262]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.308678][  T262]  ? 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))
[   11.308681][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.308684][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.308688][  T262]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.308692][  T262]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.308694][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308699][  T262]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.308702][  T262]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.308704][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.308706][  T262]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.308710][  T262]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.308712][  T262]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.308715][  T262]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.308719][  T262]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.308722][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.308723][  T262]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.308728][  T262]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.308732][  T262]  _printk (kernel/printk/printk.c:2504)
[   11.308735][  T262]  ? snapshot_read.cold (user.c:?)
[   11.308739][  T262]  ? br_multicast_flood (??:?) bridge
[   11.308751][  T262]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.308753][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.308754][  T262]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.308758][  T262] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.308769][  T262] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.308777][  T262] new_nbp (net/bridge/br_if.c:449) bridge
[   11.308786][  T262] br_add_if (net/bridge/br_if.c:592) bridge
[   11.308794][  T262]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.308798][  T262]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.308801][  T262]  ? __kernel_text_address (kernel/extable.c:79)
[   11.308805][  T262]  do_set_master (net/core/rtnetlink.c:3071)
[   11.308809][  T262]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.308813][  T262]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.308816][  T262]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.308817][  T262]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.308820][  T262]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.308828][  T262]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.308831][  T262]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.308832][  T262]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.308835][  T262]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.308838][  T262]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.308840][  T262]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.308842][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308844][  T262]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.308847][  T262]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.308852][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.308854][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.308857][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.308859][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.308861][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.308862][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.308865][  T262]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.308869][  T262]  ? __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)
[   11.308870][  T262]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.308872][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.308876][  T262]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.308878][  T262]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.308883][  T262]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.308888][  T262]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.308893][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.308895][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308899][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.308901][  T262]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.308903][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.308905][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.308909][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.308911][  T262]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.308914][  T262]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.308915][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308920][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.308922][  T262]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.308925][  T262]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.308927][  T262]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.308930][  T262]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.308936][  T262]  ? 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))
[   11.308937][  T262]  ? 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))
[   11.308942][  T262]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.308945][  T262]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.308948][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.308952][  T262]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.308956][  T262]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.308960][  T262]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.308965][  T262]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.308967][  T262]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.308970][  T262]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.308971][  T262]  ? move_addr_to_kernel (net/socket.c:258)
[   11.308979][  T262]  ___sys_sendmsg (net/socket.c:2767)
[   11.308981][  T262]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.308997][  T262]  __sys_sendmsg (net/socket.c:2799)
[   11.309000][  T262]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.309006][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.309010][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.309012][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.309016][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.309018][  T262] RIP: 0033:0x7f19a348454e
[   11.309021][  T262] 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
[   11.309023][  T262] RSP: 002b:00007ffcd6641fa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.309026][  T262] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f19a348454e
[   11.309028][  T262] RDX: 0000000000000000 RSI: 00007ffcd6642050 RDI: 0000000000000005
[   11.309029][  T262] RBP: 00007ffcd6641fb0 R08: 0000000000000000 R09: 0000000000000000
[   11.309029][  T262] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac48
[   11.309030][  T262] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd6642710
| [   26.490274][    C3] softirqs last disabled at (956589): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.490276][    C3] Preemption disabled at:
| [   26.490277][    C3] 0x0
| [   26.490288][    C3] Tainted: [W]=WARN
[   26.490289][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.490291][    C3] Call Trace:
[   26.490293][    C3]  <IRQ>
[   26.490294][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.490300][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.490304][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.490307][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.490310][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490314][    C3]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.490318][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.490320][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.490324][    C3]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.490326][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.490328][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   26.490330][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.490331][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.490335][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.490339][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.490340][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490342][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.490344][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.490347][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.490349][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490351][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490353][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.490354][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.490356][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.490359][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.490361][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.490363][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.490365][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.490366][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490368][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.490370][    C3]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.490372][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.490373][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.490375][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.490378][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.490380][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.490392][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.490393][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.490400][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.490411][    C3]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.490415][    C3]  _printk (kernel/printk/printk.c:2504)
[   26.490418][    C3]  ? snapshot_read.cold (user.c:?)
[   26.490420][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.490424][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.490426][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.490428][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.490431][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.490434][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.490436][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.490437][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.490440][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.490442][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.490448][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490450][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.490452][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.490458][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.490460][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.490466][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.490472][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.490479][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.490482][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.490483][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.490487][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.490489][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.490491][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490493][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.490495][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.490502][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.490504][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.490506][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.490509][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.490511][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.490513][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.490515][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490517][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.490519][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.490521][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.490523][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.490524][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.490526][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.490529][    C3]  </IRQ>
[   26.490529][    C3]  <TASK>
[   26.490530][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.490532][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.490534][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.490537][    C3] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.490538][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.490542][    C3] RAX: 00000000000e98ab RBX: ff11000001c88040 RCX: ffffffff9f8f0307
[   26.490543][    C3] RDX: ff11000001c88040 RSI: ffffffffa2638af6 RDI: ffffffffa208d8e0
[   26.490544][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.490545][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.490545][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.490547][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.490550][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.490552][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.490554][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.490555][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.490557][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.490559][    C3]  ? default_idle_call (kernel/sched/idle.c:129)
[   26.490561][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.490563][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.490565][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.490566][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.490568][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.490570][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.548543][    C3]
| [   26.548611][    C3]
| [   26.548611][    C3] stack backtrace:
| [   26.548842][    C3] Tainted: [W]=WARN
[   26.548843][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.548844][    C3] Call Trace:
[   26.548846][    C3]  <IRQ>
[   26.548847][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.548851][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.548854][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.548858][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.548860][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.548861][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.548864][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.548865][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548873][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548876][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.548878][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548884][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.548886][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548898][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548904][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548910][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.548912][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.548914][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.548918][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.548920][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.548922][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548924][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.548926][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548933][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.548935][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.548938][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.548940][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.548942][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.548944][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.548946][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548948][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.548950][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.548952][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.548954][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.548956][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.548957][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.548959][    C3]  </IRQ>
[   26.548959][    C3]  <TASK>
[   26.548960][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.548962][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.548963][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.548966][    C3] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.548967][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.548970][    C3] RAX: 00000000000e98ab RBX: ff11000001c88040 RCX: ffffffff9f8f0307
[   26.548971][    C3] RDX: ff11000001c88040 RSI: ffffffffa2638af6 RDI: ffffffffa208d8e0
[   26.548972][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.548973][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.548973][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.548975][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.548977][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.548979][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.548981][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.548982][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.548984][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.548986][    C3]  ? default_idle_call (kernel/sched/idle.c:129)
[   26.548987][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548989][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.548991][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.548992][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.548994][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.548996][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.504994][  T712] softirqs last disabled at (0): 0x0
| [   29.504996][  T712] Preemption disabled at:
| [   29.504997][  T712] 0x0
| [   29.505006][  T712] Tainted: [W]=WARN
[   29.505006][  T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.505008][  T712] Call Trace:
[   29.505010][  T712]  <TASK>
[   29.505011][  T712]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.505016][  T712]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.505020][  T712]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.505023][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505027][  T712]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.505031][  T712]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.505033][  T712]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.505037][  T712]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.505039][  T712]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.505041][  T712]  put_chars (drivers/char/virtio_console.c:1176)
[   29.505043][  T712]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.505044][  T712]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   29.505048][  T712]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.505051][  T712]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.505054][  T712]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.505055][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505057][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505059][  T712]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.505062][  T712]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.505064][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505065][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505067][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505069][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505070][  T712]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.505072][  T712]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.505074][  T712]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.505077][  T712]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.505079][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505080][  T712]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.505082][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505083][  T712]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.505085][  T712]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.505086][  T712]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   29.505088][  T712]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.505090][  T712]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.505092][  T712]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.505094][  T712]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.505096][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505098][  T712]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.505100][  T712]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   29.505102][  T712]  _printk (kernel/printk/printk.c:2504)
[   29.505105][  T712]  ? snapshot_read.cold (user.c:?)
[   29.505107][  T712]  ? ipv6_mc_down (net/ipv6/mcast.c:1157 net/ipv6/mcast.c:2820)
[   29.505112][  T712] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   29.505124][  T712] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   29.505132][  T712] br_device_event (net/bridge/br.c:111) bridge
[   29.505140][  T712]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   29.505144][  T712]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   29.505146][  T712]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   29.505149][  T712]  notifier_call_chain (kernel/notifier.c:85)
[   29.505152][  T712]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   29.505156][  T712]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.505157][  T712]  ? netif_change_name (net/core/dev.c:1517)
[   29.505159][  T712]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   29.505161][  T712]  ? __kernel_text_address (kernel/extable.c:79)
[   29.505163][  T712]  ? write_profile (profile.c:?)
[   29.505165][  T712]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.505168][  T712]  netif_change_flags (net/core/dev.c:9882)
[   29.505170][  T712]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   29.505175][  T712]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.505177][  T712]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.505178][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505180][  T712]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.505184][  T712]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.505187][  T712]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.505188][  T712]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.505190][  T712]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.505191][  T712]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   29.505193][  T712]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   29.505194][  T712]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.505195][  T712]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.505198][  T712]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.505199][  T712]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.505200][  T712]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.505203][  T712]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.505204][  T712]  ? __sys_sendmsg (net/socket.c:2799)
[   29.505206][  T712]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.505208][  T712]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.505210][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505212][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505214][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505215][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505217][  T712]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.505220][  T712]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   29.505221][  T712]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.505223][  T712]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.505224][  T712]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.505227][  T712]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.505229][  T712]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.505231][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505233][  T712]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.505234][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505235][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505237][  T712]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   29.505240][  T712]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.505242][  T712]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   29.505243][  T712]  ? __kernel_text_address (kernel/extable.c:79)
[   29.505244][  T712]  ? write_profile (profile.c:?)
[   29.505246][  T712]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.505247][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505248][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505250][  T712]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   29.505254][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505255][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505257][  T712]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.505258][  T712]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.505260][  T712]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.505261][  T712]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.505262][  T712]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.505265][  T712]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.505266][  T712]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.505268][  T712]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.505269][  T712]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.505270][  T712]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   29.505273][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505275][  T712]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.505276][  T712]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.505278][  T712]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.505280][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505282][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505283][  T712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.505285][  T712]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.505287][  T712]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.505289][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505291][  T712]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.505292][  T712]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.505294][  T712]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.505296][  T712]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.505297][  T712]  ? move_addr_to_kernel (net/socket.c:258)
[   29.505298][  T712]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.505301][  T712]  ___sys_sendmsg (net/socket.c:2767)
[   29.505303][  T712]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.505308][  T712]  __sys_sendmsg (net/socket.c:2799)
[   29.505310][  T712]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.505313][  T712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.505315][  T712]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.505316][  T712]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.505318][  T712]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.505320][  T712] RIP: 0033:0x7fdc934c154e
[   29.505322][  T712] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.505323][  T712] RSP: 002b:00007ffc580d3290 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.505327][  T712] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdc934c154e
[   29.505329][  T712] RDX: 0000000000000000 RSI: 00007ffc580d3340 RDI: 0000000000000005
[   29.505329][  T712] RBP: 00007ffc580d32a0 R08: 0000000000000000 R09: 0000000000000000
[   29.505330][  T712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac5a


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record