======================================
| [   11.208694][  T262] softirqs last disabled at (18230): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.208697][  T262] Preemption disabled at:
| [   11.208698][  T262] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.208708][  T262] Tainted: [W]=WARN
[   11.208708][  T262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.208710][  T262] Call Trace:
[   11.208712][  T262]  <TASK>
[   11.208713][  T262]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.208719][  T262]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.208722][  T262]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.208726][  T262]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.208730][  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)
[   11.208736][  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))
[   11.208738][  T262]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.208744][  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)
[   11.208747][  T262]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.208750][  T262]  put_chars (drivers/char/virtio_console.c:1176)
[   11.208753][  T262]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.208757][  T262]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.208760][  T262]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.208763][  T262]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.208765][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.208767][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.208771][  T262]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.208773][  T262]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.208776][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.208780][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.208784][  T262]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.208788][  T262]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.208790][  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))
[   11.208793][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.208795][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.208799][  T262]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.208803][  T262]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.208805][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.208810][  T262]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.208813][  T262]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.208815][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.208817][  T262]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.208821][  T262]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.208822][  T262]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.208826][  T262]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.208829][  T262]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.208832][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.208834][  T262]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.208838][  T262]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.208842][  T262]  _printk (kernel/printk/printk.c:2504)
[   11.208845][  T262]  ? snapshot_read.cold (user.c:?)
[   11.208849][  T262]  ? br_multicast_flood (??:?) bridge
[   11.208862][  T262]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.208863][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.208865][  T262]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.208869][  T262] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.208879][  T262] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.208888][  T262] new_nbp (net/bridge/br_if.c:449) bridge
[   11.208897][  T262] br_add_if (net/bridge/br_if.c:592) bridge
[   11.208904][  T262]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.208909][  T262]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.208912][  T262]  ? __kernel_text_address (kernel/extable.c:79)
[   11.208916][  T262]  do_set_master (net/core/rtnetlink.c:3071)
[   11.208920][  T262]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.208923][  T262]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.208927][  T262]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.208928][  T262]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.208930][  T262]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.208934][  T262]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.208937][  T262]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.208939][  T262]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.208942][  T262]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.208945][  T262]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.208946][  T262]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.208949][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.208951][  T262]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.208954][  T262]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.208959][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.208960][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.208963][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.208965][  T262]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.208967][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.208969][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.208971][  T262]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.208975][  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)
[   11.208977][  T262]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.208979][  T262]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.208982][  T262]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.208984][  T262]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.208989][  T262]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.208994][  T262]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.208999][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.209001][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.209006][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.209008][  T262]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.209010][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.209012][  T262]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.209015][  T262]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.209017][  T262]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.209020][  T262]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.209022][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.209026][  T262]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.209028][  T262]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.209031][  T262]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.209033][  T262]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.209036][  T262]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.209042][  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))
[   11.209044][  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))
[   11.209048][  T262]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.209052][  T262]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.209054][  T262]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.209059][  T262]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.209062][  T262]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.209066][  T262]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.209071][  T262]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.209073][  T262]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.209076][  T262]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.209077][  T262]  ? move_addr_to_kernel (net/socket.c:258)
[   11.209085][  T262]  ___sys_sendmsg (net/socket.c:2767)
[   11.209088][  T262]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.209103][  T262]  __sys_sendmsg (net/socket.c:2799)
[   11.209106][  T262]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.209113][  T262]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.209116][  T262]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.209119][  T262]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.209122][  T262]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.209124][  T262] RIP: 0033:0x7fab4c4a454e
[   11.209128][  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
[   11.209130][  T262] RSP: 002b:00007ffc2da9c020 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.209132][  T262] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fab4c4a454e
[   11.209134][  T262] RDX: 0000000000000000 RSI: 00007ffc2da9c0d0 RDI: 0000000000000005
[   11.209135][  T262] RBP: 00007ffc2da9c030 R08: 0000000000000000 R09: 0000000000000000
[   11.209135][  T262] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9157d1
[   11.209136][  T262] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2da9c790
| [   26.512756][    C2] softirqs last disabled at (993089): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.512758][    C2] Preemption disabled at:
| [   26.512758][    C2] 0x0
| [   26.512768][    C2] Tainted: [W]=WARN
[   26.512769][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.512771][    C2] Call Trace:
[   26.512773][    C2]  <IRQ>
[   26.512775][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.512780][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.512784][    C2]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.512787][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.512790][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.512793][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512797][    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))
[   26.512800][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.512802][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.512805][    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)
[   26.512807][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.512809][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   26.512811][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.512813][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.512816][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.512819][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.512821][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512823][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.512825][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.512827][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.512829][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512831][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512833][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.512834][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.512836][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.512839][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.512841][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.512843][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.512844][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.512846][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512848][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.512849][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.512851][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.512853][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.512855][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.512857][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.512859][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.512871][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.512873][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.512879][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.512885][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.512889][    C2]  _printk (kernel/printk/printk.c:2504)
[   26.512892][    C2]  ? snapshot_read.cold (user.c:?)
[   26.512894][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.512898][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.512900][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.512902][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.512904][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.512907][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.512909][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.512911][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.512913][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.512915][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.512921][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512923][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.512925][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.512931][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.512932][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.512938][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.512945][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.512951][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   26.512954][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.512956][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.512959][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.512961][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.512963][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512965][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.512967][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.512974][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.512976][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.512978][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.512981][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.512983][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.512985][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.512987][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.512989][    C2]  handle_softirqs (kernel/softirq.c:645)
[   26.512991][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.512992][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.512994][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.512996][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   26.512997][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.513000][    C2]  </IRQ>
[   26.513001][    C2]  <TASK>
[   26.513001][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.513003][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.513005][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.513008][    C2] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   26.513010][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   26.513013][    C2] RAX: 00000000000f273f RBX: ff11000001bec6c0 RCX: ffffffff8d4f0307
[   26.513014][    C2] RDX: ff11000001bec6c0 RSI: ffffffff90238b01 RDI: ffffffff8fc8d8e0
[   26.513015][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.513016][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   26.513016][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.513018][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.513021][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.513023][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   26.513025][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.513027][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   26.513028][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.513030][    C2]  ? trace_sched_exit_tp (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/sched.h:886)
[   26.513032][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.513034][    C2]  do_idle (kernel/sched/idle.c:355)
[   26.513036][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.513037][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.513039][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.513041][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.573982][    C2]
| [   26.574097][    C2]
| [   26.574097][    C2] stack backtrace:
| [   26.574265][    C2] Tainted: [W]=WARN
[   26.574265][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.574266][    C2] Call Trace:
[   26.574267][    C2]  <IRQ>
[   26.574268][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.574271][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.574274][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.574277][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.574278][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.574280][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.574282][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.574284][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.574291][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.574293][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.574295][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.574301][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.574303][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.574309][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.574315][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.574321][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   26.574323][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.574325][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.574327][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.574329][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.574331][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.574333][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.574335][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.574341][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.574343][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.574346][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.574348][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.574350][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.574352][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.574353][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.574355][    C2]  handle_softirqs (kernel/softirq.c:645)
[   26.574357][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.574358][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.574360][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.574362][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   26.574363][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.574365][    C2]  </IRQ>
[   26.574366][    C2]  <TASK>
[   26.574366][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.574368][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.574369][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.574371][    C2] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   26.574372][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   26.574374][    C2] RAX: 00000000000f273f RBX: ff11000001bec6c0 RCX: ffffffff8d4f0307
[   26.574375][    C2] RDX: ff11000001bec6c0 RSI: ffffffff90238b01 RDI: ffffffff8fc8d8e0
[   26.574376][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.574377][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   26.574377][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.574379][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.574381][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.574383][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   26.574384][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.574386][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   26.574387][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.574389][    C2]  ? trace_sched_exit_tp (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/sched.h:886)
[   26.574390][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.574392][    C2]  do_idle (kernel/sched/idle.c:355)
[   26.574394][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.574395][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.574397][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.574398][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.284294][  T729] softirqs last disabled at (0): 0x0
| [   29.284296][  T729] Preemption disabled at:
| [   29.284296][  T729] 0x0
| [   29.284304][  T729] Tainted: [W]=WARN
[   29.284305][  T729] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.284307][  T729] Call Trace:
[   29.284309][  T729]  <TASK>
[   29.284310][  T729]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.284316][  T729]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.284320][  T729]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.284323][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284327][  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))
[   29.284331][  T729]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.284334][  T729]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.284338][  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)
[   29.284339][  T729]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.284341][  T729]  put_chars (drivers/char/virtio_console.c:1176)
[   29.284343][  T729]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.284345][  T729]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   29.284348][  T729]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.284351][  T729]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.284354][  T729]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.284355][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284357][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284359][  T729]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.284362][  T729]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.284364][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284365][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284367][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284368][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284370][  T729]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.284372][  T729]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.284374][  T729]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.284377][  T729]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.284378][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284380][  T729]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.284381][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284383][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.284384][  T729]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.284386][  T729]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   29.284388][  T729]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.284390][  T729]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.284392][  T729]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.284394][  T729]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.284396][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284397][  T729]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.284400][  T729]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   29.284402][  T729]  _printk (kernel/printk/printk.c:2504)
[   29.284405][  T729]  ? snapshot_read.cold (user.c:?)
[   29.284407][  T729]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   29.284411][  T729] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   29.284424][  T729] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   29.284432][  T729] br_device_event (net/bridge/br.c:111) bridge
[   29.284440][  T729]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   29.284443][  T729]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   29.284445][  T729]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   29.284449][  T729]  notifier_call_chain (kernel/notifier.c:85)
[   29.284451][  T729]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   29.284455][  T729]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.284457][  T729]  ? netif_change_name (net/core/dev.c:1517)
[   29.284459][  T729]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   29.284461][  T729]  ? __kernel_text_address (kernel/extable.c:79)
[   29.284463][  T729]  ? write_profile (profile.c:?)
[   29.284465][  T729]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.284468][  T729]  netif_change_flags (net/core/dev.c:9882)
[   29.284470][  T729]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   29.284473][  T729]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.284474][  T729]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.284476][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284477][  T729]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.284481][  T729]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.284485][  T729]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.284486][  T729]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.284487][  T729]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.284489][  T729]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   29.284491][  T729]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   29.284492][  T729]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.284493][  T729]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.284495][  T729]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.284497][  T729]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.284498][  T729]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.284500][  T729]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.284502][  T729]  ? __sys_sendmsg (net/socket.c:2799)
[   29.284503][  T729]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.284505][  T729]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.284508][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284509][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284511][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284512][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284514][  T729]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.284517][  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)
[   29.284518][  T729]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.284520][  T729]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.284522][  T729]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.284524][  T729]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.284526][  T729]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.284527][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284529][  T729]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.284530][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284532][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284534][  T729]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   29.284537][  T729]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.284538][  T729]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   29.284540][  T729]  ? __kernel_text_address (kernel/extable.c:79)
[   29.284541][  T729]  ? write_profile (profile.c:?)
[   29.284542][  T729]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.284543][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284545][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284547][  T729]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   29.284550][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284552][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284553][  T729]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.284555][  T729]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.284556][  T729]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.284557][  T729]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.284559][  T729]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.284561][  T729]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.284563][  T729]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.284564][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.284565][  T729]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.284567][  T729]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   29.284569][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284571][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.284573][  T729]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.284575][  T729]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.284576][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284578][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284579][  T729]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.284581][  T729]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.284583][  T729]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.284585][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284586][  T729]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.284588][  T729]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.284590][  T729]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.284591][  T729]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.284593][  T729]  ? move_addr_to_kernel (net/socket.c:258)
[   29.284594][  T729]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.284597][  T729]  ___sys_sendmsg (net/socket.c:2767)
[   29.284598][  T729]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.284603][  T729]  __sys_sendmsg (net/socket.c:2799)
[   29.284605][  T729]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.284608][  T729]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.284610][  T729]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.284611][  T729]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.284613][  T729]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.284615][  T729] RIP: 0033:0x7f15ea63b54e
[   29.284616][  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
[   29.284618][  T729] RSP: 002b:00007ffde7581a30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.284622][  T729] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f15ea63b54e
[   29.284623][  T729] RDX: 0000000000000000 RSI: 00007ffde7581ae0 RDI: 0000000000000005
[   29.284624][  T729] RBP: 00007ffde7581a40 R08: 0000000000000000 R09: 0000000000000000
[   29.284625][  T729] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9157e3


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