======================================
| [   11.792864][  T262] softirqs last disabled at (26214): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.792867][  T262] Preemption disabled at:
| [   11.792867][  T262] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.792876][  T262] Tainted: [W]=WARN
[   11.792877][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.792879][  T262] Call Trace:
[   11.792881][  T262]  <TASK>
[   11.792882][  T262]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.792888][  T262]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.792891][  T262]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.792895][  T262]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.792900][  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)
[   11.792905][  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))
[   11.792907][  T262]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.792913][  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)
[   11.792915][  T262]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.792919][  T262]  put_chars (drivers/char/virtio_console.c:1176)
[   11.792921][  T262]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.792926][  T262]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.792929][  T262]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.792933][  T262]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.792934][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.792936][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.792940][  T262]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.792942][  T262]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.792946][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.792950][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.792954][  T262]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.792965][  T262]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.792967][  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))
[   11.792970][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.792973][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.792977][  T262]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.792981][  T262]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.792983][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.792988][  T262]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.792991][  T262]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.792992][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.792995][  T262]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.792998][  T262]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.793000][  T262]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.793003][  T262]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.793007][  T262]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.793010][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.793011][  T262]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.793016][  T262]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.793019][  T262]  _printk (kernel/printk/printk.c:2504)
[   11.793023][  T262]  ? snapshot_read.cold (user.c:?)
[   11.793027][  T262]  ? br_multicast_flood (??:?) bridge
[   11.793040][  T262]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.793042][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.793043][  T262]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.793047][  T262] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.793058][  T262] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.793067][  T262] new_nbp (net/bridge/br_if.c:449) bridge
[   11.793076][  T262] br_add_if (net/bridge/br_if.c:592) bridge
[   11.793083][  T262]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.793087][  T262]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.793090][  T262]  ? __kernel_text_address (kernel/extable.c:79)
[   11.793094][  T262]  do_set_master (net/core/rtnetlink.c:3071)
[   11.793099][  T262]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.793102][  T262]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.793105][  T262]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.793106][  T262]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.793109][  T262]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.793112][  T262]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.793115][  T262]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.793117][  T262]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.793119][  T262]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.793123][  T262]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.793124][  T262]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.793127][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.793129][  T262]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.793132][  T262]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.793136][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.793138][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.793141][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.793143][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.793145][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.793146][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.793149][  T262]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.793153][  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)
[   11.793154][  T262]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.793156][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.793160][  T262]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.793161][  T262]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.793166][  T262]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.793171][  T262]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.793177][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.793179][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.793183][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.793185][  T262]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.793187][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.793189][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.793192][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.793195][  T262]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.793198][  T262]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.793199][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.793203][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.793205][  T262]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.793208][  T262]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.793210][  T262]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.793213][  T262]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.793219][  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))
[   11.793221][  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))
[   11.793225][  T262]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.793229][  T262]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.793231][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.793235][  T262]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.793239][  T262]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.793243][  T262]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.793249][  T262]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.793251][  T262]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.793253][  T262]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.793255][  T262]  ? move_addr_to_kernel (net/socket.c:258)
[   11.793262][  T262]  ___sys_sendmsg (net/socket.c:2767)
[   11.793265][  T262]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.793280][  T262]  __sys_sendmsg (net/socket.c:2799)
[   11.793283][  T262]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.793289][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.793293][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.793296][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.793299][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.793301][  T262] RIP: 0033:0x7fb4181bd54e
[   11.793305][  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
[   11.793307][  T262] RSP: 002b:00007fff6a0a5260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.793309][  T262] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb4181bd54e
[   11.793311][  T262] RDX: 0000000000000000 RSI: 00007fff6a0a5310 RDI: 0000000000000005
[   11.793312][  T262] RBP: 00007fff6a0a5270 R08: 0000000000000000 R09: 0000000000000000
[   11.793312][  T262] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dbc3
[   11.793313][  T262] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6a0a59d0
| [   27.006574][    C2] softirqs last disabled at (1006419): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.006576][    C2] Preemption disabled at:
| [   27.006577][    C2] 0x0
| [   27.006586][    C2] Tainted: [W]=WARN
[   27.006587][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.006589][    C2] Call Trace:
[   27.006591][    C2]  <IRQ>
[   27.006592][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.006598][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.006602][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.006605][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.006608][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006612][    C2]  __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))
[   27.006615][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.006618][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.006621][    C2]  ? 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)
[   27.006623][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.006625][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   27.006627][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.006628][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.006632][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.006635][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.006637][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006639][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.006641][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.006643][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.006645][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006647][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006648][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.006650][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.006652][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.006654][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.006656][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.006658][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.006660][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.006662][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006663][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.006665][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.006666][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.006668][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.006670][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.006673][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.006674][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.006686][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.006688][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.006694][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.006701][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   27.006704][    C2]  _printk (kernel/printk/printk.c:2504)
[   27.006708][    C2]  ? snapshot_read.cold (user.c:?)
[   27.006709][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.006713][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.006716][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.006717][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.006720][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.006722][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.006724][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.006726][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.006728][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.006729][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.006736][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006738][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.006739][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.006745][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.006747][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.006753][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.006759][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.006765][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.006768][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.006770][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.006774][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.006775][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.006777][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006779][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.006781][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.006788][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.006790][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.006792][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.006795][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.006796][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.006798][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.006800][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006802][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.006804][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.006806][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.006807][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.006809][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.006810][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.006813][    C2]  </IRQ>
[   27.006814][    C2]  <TASK>
[   27.006814][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.006816][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.006818][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.006820][    C2] Code: 48 8b 3d 94 f2 f5 01 e8 1f 00 00 00 48 2b 05 58 b3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 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 f2 f5 01 	mov    0x1f5f294(%rip),%rdi        # 0x1f5f29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 95 00 	sub    0x95b358(%rip),%rax        # 0x95b36b
  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 a6 11 00 	verw   0x11a613(%rip)        # 0x11a63b
  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
[   27.006822][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.006825][    C2] RAX: 00000000000f5b51 RBX: ff11000001bec6c0 RCX: ffffffffb4cf0307
[   27.006827][    C2] RDX: ff11000001bec6c0 RSI: ffffffffb7a38b1c RDI: ffffffffb748d8e0
[   27.006828][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.006829][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.006829][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.006831][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.006834][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.006836][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.006838][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.006848][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.006850][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.006852][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.006853][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.006855][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.006856][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.006858][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.006860][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.006862][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.072353][    C2]
| [   27.072464][    C2]
| [   27.072464][    C2] stack backtrace:
| [   27.072641][    C2] Tainted: [W]=WARN
[   27.072642][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.072644][    C2] Call Trace:
[   27.072645][    C2]  <IRQ>
[   27.072647][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.072652][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.072655][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.072658][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.072660][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.072661][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.072663][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.072665][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.072672][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072676][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.072677][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.072683][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.072685][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.072691][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.072697][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.072703][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.072705][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.072707][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.072711][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.072712][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.072714][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072716][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.072718][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.072724][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.072726][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.072729][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.072731][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.072733][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.072735][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.072737][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072739][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.072741][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.072742][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.072744][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.072746][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.072747][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.072749][    C2]  </IRQ>
[   27.072749][    C2]  <TASK>
[   27.072750][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.072752][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.072753][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.072756][    C2] Code: 48 8b 3d 94 f2 f5 01 e8 1f 00 00 00 48 2b 05 58 b3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 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 f2 f5 01 	mov    0x1f5f294(%rip),%rdi        # 0x1f5f29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 95 00 	sub    0x95b358(%rip),%rax        # 0x95b36b
  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 a6 11 00 	verw   0x11a613(%rip)        # 0x11a63b
  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
[   27.072758][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.072760][    C2] RAX: 00000000000f5b51 RBX: ff11000001bec6c0 RCX: ffffffffb4cf0307
[   27.072762][    C2] RDX: ff11000001bec6c0 RSI: ffffffffb7a38b1c RDI: ffffffffb748d8e0
[   27.072762][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.072763][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.072764][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.072765][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.072768][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.072769][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.072771][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.072772][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.072774][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.072776][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.072777][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072779][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.072780][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.072782][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.072783][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.072785][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   30.036126][  T729] softirqs last disabled at (0): 0x0
| [   30.036128][  T729] Preemption disabled at:
| [   30.036129][  T729] 0x0
| [   30.036137][  T729] Tainted: [W]=WARN
[   30.036138][  T729] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.036140][  T729] Call Trace:
[   30.036142][  T729]  <TASK>
[   30.036143][  T729]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.036149][  T729]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.036152][  T729]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.036156][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036160][  T729]  __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))
[   30.036164][  T729]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.036167][  T729]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.036171][  T729]  ? 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)
[   30.036172][  T729]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.036174][  T729]  put_chars (drivers/char/virtio_console.c:1176)
[   30.036176][  T729]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.036178][  T729]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   30.036181][  T729]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.036184][  T729]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.036186][  T729]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   30.036188][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036190][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036192][  T729]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.036195][  T729]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.036196][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036198][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036200][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036201][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036203][  T729]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   30.036205][  T729]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.036207][  T729]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.036210][  T729]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.036211][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036213][  T729]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.036215][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036216][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.036218][  T729]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   30.036219][  T729]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   30.036221][  T729]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.036223][  T729]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.036225][  T729]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.036228][  T729]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.036229][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036231][  T729]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.036234][  T729]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   30.036235][  T729]  _printk (kernel/printk/printk.c:2504)
[   30.036238][  T729]  ? snapshot_read.cold (user.c:?)
[   30.036241][  T729]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   30.036245][  T729] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   30.036258][  T729] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   30.036267][  T729] br_device_event (net/bridge/br.c:111) bridge
[   30.036275][  T729]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   30.036278][  T729]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   30.036281][  T729]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   30.036284][  T729]  notifier_call_chain (kernel/notifier.c:85)
[   30.036287][  T729]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   30.036291][  T729]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.036293][  T729]  ? netif_change_name (net/core/dev.c:1517)
[   30.036295][  T729]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   30.036297][  T729]  ? __kernel_text_address (kernel/extable.c:79)
[   30.036299][  T729]  ? write_profile (profile.c:?)
[   30.036301][  T729]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   30.036304][  T729]  netif_change_flags (net/core/dev.c:9882)
[   30.036306][  T729]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   30.036309][  T729]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   30.036311][  T729]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   30.036312][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036313][  T729]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   30.036317][  T729]  ? kasan_save_stack (mm/kasan/common.c:58)
[   30.036320][  T729]  ? kasan_save_stack (mm/kasan/common.c:57)
[   30.036321][  T729]  ? kasan_save_track (mm/kasan/common.c:78)
[   30.036323][  T729]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.036324][  T729]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   30.036326][  T729]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   30.036327][  T729]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.036328][  T729]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.036331][  T729]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.036332][  T729]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.036333][  T729]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   30.036336][  T729]  ? ___sys_sendmsg (net/socket.c:2767)
[   30.036337][  T729]  ? __sys_sendmsg (net/socket.c:2799)
[   30.036339][  T729]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.036341][  T729]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.036343][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036345][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036346][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036348][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036350][  T729]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   30.036353][  T729]  ? __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)
[   30.036355][  T729]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   30.036356][  T729]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.036357][  T729]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   30.036359][  T729]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   30.036361][  T729]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   30.036363][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036365][  T729]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.036366][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036368][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036370][  T729]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   30.036373][  T729]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   30.036375][  T729]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   30.036376][  T729]  ? __kernel_text_address (kernel/extable.c:79)
[   30.036377][  T729]  ? write_profile (profile.c:?)
[   30.036379][  T729]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   30.036380][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036381][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036383][  T729]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   30.036387][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036388][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036390][  T729]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.036391][  T729]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.036393][  T729]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.036394][  T729]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   30.036395][  T729]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   30.036398][  T729]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.036399][  T729]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.036401][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.036402][  T729]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   30.036404][  T729]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   30.036406][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036408][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.036410][  T729]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.036412][  T729]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   30.036413][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036415][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036417][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.036419][  T729]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.036421][  T729]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   30.036422][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036424][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   30.036426][  T729]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   30.036428][  T729]  ? copy_msghdr_from_user (net/socket.c:2650)
[   30.036429][  T729]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   30.036431][  T729]  ? move_addr_to_kernel (net/socket.c:258)
[   30.036432][  T729]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   30.036435][  T729]  ___sys_sendmsg (net/socket.c:2767)
[   30.036436][  T729]  ? copy_msghdr_from_user (net/socket.c:2619)
[   30.036441][  T729]  __sys_sendmsg (net/socket.c:2799)
[   30.036443][  T729]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   30.036446][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.036448][  T729]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.036449][  T729]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   30.036451][  T729]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.036453][  T729] RIP: 0033:0x7f032188d54e
[   30.036457][  T729] 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
[   30.036459][  T729] RSP: 002b:00007ffd120a64f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   30.036462][  T729] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f032188d54e
[   30.036464][  T729] RDX: 0000000000000000 RSI: 00007ffd120a65a0 RDI: 0000000000000005
[   30.036465][  T729] RBP: 00007ffd120a6500 R08: 0000000000000000 R09: 0000000000000000
[   30.036465][  T729] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dbd5


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