======================================
| [   11.648270][  T245] softirqs last disabled at (21209): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.648272][  T245] Preemption disabled at:
| [   11.648273][  T245] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.648282][  T245] Tainted: [W]=WARN
[   11.648283][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.648285][  T245] Call Trace:
[   11.648286][  T245]  <TASK>
[   11.648288][  T245]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.648294][  T245]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.648296][  T245]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.648300][  T245]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.648304][  T245]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.648309][  T245]  __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))
[   11.648311][  T245]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.648317][  T245]  ? 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)
[   11.648320][  T245]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.648323][  T245]  put_chars (drivers/char/virtio_console.c:1176)
[   11.648326][  T245]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.648327][  T245]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.648332][  T245]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.648334][  T245]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.648338][  T245]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.648341][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.648346][  T245]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.648348][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.648353][  T245]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.648357][  T245]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.648358][  T245]  ? 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))
[   11.648361][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.648364][  T245]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.648367][  T245]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.648371][  T245]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.648373][  T245]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.648378][  T245]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.648381][  T245]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.648382][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.648384][  T245]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.648388][  T245]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.648389][  T245]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.648393][  T245]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.648396][  T245]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.648402][  T245]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.648405][  T245]  _printk (kernel/printk/printk.c:2504)
[   11.648409][  T245]  ? snapshot_read.cold (user.c:?)
[   11.648415][  T245]  ? do_one_initcall (./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/initcall.h:27 init/main.c:1356)
[   11.648418][  T245] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   11.648421][  T245]  do_one_initcall (init/main.c:1357)
[   11.648423][  T245]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.648428][  T245]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.648431][  T245]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.648435][  T245]  do_init_module (kernel/module/main.c:3117)
[   11.648439][  T245]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.648443][  T245]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.648446][  T245]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.648450][  T245]  load_module (kernel/module/main.c:3593)
[   11.648457][  T245]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.648461][  T245]  ? __ia32_sys_fsconfig (??:?)
[   11.648463][  T245]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.648471][  T245]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.648474][  T245]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.648478][  T245]  init_module_from_file (kernel/module/main.c:3790)
[   11.648481][  T245]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.648489][  T245]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.648492][  T245]  ? 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)
[   11.648495][  T245]  idempotent_init_module (kernel/module/main.c:3802)
[   11.648498][  T245]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.648504][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.648506][  T245]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.648512][  T245]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.648514][  T245]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.648518][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.648519][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.648522][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.648524][  T245] RIP: 0033:0x7f9fdcd9437d
[   11.648527][  T245] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.648529][  T245] RSP: 002b:00007ffd47498648 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.648532][  T245] RAX: ffffffffffffffda RBX: 0000563f9e9d6810 RCX: 00007f9fdcd9437d
[   11.648533][  T245] RDX: 0000000000000000 RSI: 0000563f6d4c0ffd RDI: 0000000000000000
[   11.648534][  T245] RBP: 00007ffd474986e0 R08: 0000000000000000 R09: 0000000000000000
[   11.648535][  T245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563f6d4c0ffd
[   11.648535][  T245] R13: 0000563f9e9d6960 R14: 0000000000040000 R15: 0000000000000000
| [   12.967983][  T316] softirqs last disabled at (24187): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.967986][  T316] Preemption disabled at:
| [   12.967987][  T316] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.967999][  T316] Tainted: [W]=WARN
[   12.968000][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.968003][  T316] Call Trace:
[   12.968005][  T316]  <TASK>
[   12.968007][  T316]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.968014][  T316]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.968017][  T316]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.968023][  T316]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.968029][  T316]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.968036][  T316]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.968040][  T316]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.968048][  T316]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.968051][  T316]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.968056][  T316]  put_chars (drivers/char/virtio_console.c:1176)
[   12.968059][  T316]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   12.968063][  T316]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.968067][  T316]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.968072][  T316]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.968079][  T316]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.968082][  T316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.968085][  T316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.968093][  T316]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.968094][  T316]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.968099][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.968103][  T316]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.968110][  T316]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.968116][  T316]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.968119][  T316]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.968124][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.968127][  T316]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.968136][  T316]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.968142][  T316]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.968145][  T316]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.968154][  T316]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.968158][  T316]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.968161][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.968164][  T316]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.968170][  T316]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.968173][  T316]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.968178][  T316]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.968184][  T316]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.968193][  T316]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   12.968198][  T316]  _printk (kernel/printk/printk.c:2504)
[   12.968203][  T316]  ? snapshot_read.cold (user.c:?)
[   12.968214][  T316]  ? do_one_initcall (./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/initcall.h:27 init/main.c:1356)
[   12.968219][  T316] gact_init_module (net/sched/act_gact.c:180) act_gact
[   12.968222][  T316]  do_one_initcall (init/main.c:1357)
[   12.968226][  T316]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.968234][  T316]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.968239][  T316]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.968246][  T316]  do_init_module (kernel/module/main.c:3117)
[   12.968252][  T316]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.968258][  T316]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.968263][  T316]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.968269][  T316]  load_module (kernel/module/main.c:3593)
[   12.968282][  T316]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.968288][  T316]  ? __ia32_sys_fsconfig (??:?)
[   12.968293][  T316]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.968297][  T316]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.968304][  T316]  init_module_from_file (kernel/module/main.c:3790)
[   12.968309][  T316]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.968323][  T316]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.968358][  T316]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.968364][  T316]  idempotent_init_module (kernel/module/main.c:3802)
[   12.968369][  T316]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.968380][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.968384][  T316]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.968393][  T316]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.968396][  T316]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.968402][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.968404][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.968409][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.968412][  T316] RIP: 0033:0x7f8d2579a37d
[   12.968417][  T316] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.968420][  T316] RSP: 002b:00007ffe7d0213b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.968424][  T316] RAX: ffffffffffffffda RBX: 0000557915be1810 RCX: 00007f8d2579a37d
[   12.968426][  T316] RDX: 0000000000000000 RSI: 00005578fb03bffd RDI: 0000000000000000
[   12.968427][  T316] RBP: 00007ffe7d021450 R08: 0000000000000000 R09: 0000000000000000
[   12.968429][  T316] R10: 0000000000000000 R11: 0000000000000246 R12: 00005578fb03bffd
[   12.968430][  T316] R13: 0000557915be1960 R14: 0000000000040000 R15: 0000000000000000
| [   14.113248][  T400] softirqs last disabled at (20112): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.113251][  T400] Preemption disabled at:
| [   14.113251][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.113261][  T400] Tainted: [W]=WARN
[   14.113261][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.113263][  T400] Call Trace:
[   14.113265][  T400]  <TASK>
[   14.113266][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.113272][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.113274][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.113279][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.113283][  T400]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.113288][  T400]  __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))
[   14.113291][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.113296][  T400]  ? 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)
[   14.113299][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.113302][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   14.113304][  T400]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.113306][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.113309][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.113314][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.113316][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.113319][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.113322][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.113324][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113326][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113330][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.113332][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.113335][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113337][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.113341][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.113345][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.113347][  T400]  ? 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))
[   14.113350][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113352][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.113356][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.113361][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.113362][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113368][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.113370][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.113372][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113374][  T400]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.113378][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.113380][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.113383][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.113387][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.113390][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.113395][  T400]  _printk (kernel/printk/printk.c:2504)
[   14.113399][  T400]  ? snapshot_read.cold (user.c:?)
[   14.113403][  T400]  ? br_multicast_flood (??:?) bridge
[   14.113415][  T400]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.113417][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.113418][  T400]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.113422][  T400] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.113433][  T400] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.113441][  T400] new_nbp (net/bridge/br_if.c:449) bridge
[   14.113450][  T400] br_add_if (net/bridge/br_if.c:592) bridge
[   14.113458][  T400]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.113462][  T400]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.113465][  T400]  ? __kernel_text_address (kernel/extable.c:79)
[   14.113468][  T400]  do_set_master (net/core/rtnetlink.c:3071)
[   14.113473][  T400]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.113482][  T400]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.113485][  T400]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.113486][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.113488][  T400]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.113492][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.113494][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.113496][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.113499][  T400]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.113502][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.113504][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.113506][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113508][  T400]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   14.113511][  T400]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.113516][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.113518][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.113520][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113523][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.113524][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113526][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113528][  T400]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.113532][  T400]  ? __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)
[   14.113535][  T400]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.113537][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.113540][  T400]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.113542][  T400]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.113547][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.113552][  T400]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.113557][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.113559][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113564][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.113566][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.113567][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.113569][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.113573][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.113575][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.113578][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.113579][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113584][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.113586][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.113589][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.113591][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.113594][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.113600][  T400]  ? 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))
[   14.113601][  T400]  ? 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))
[   14.113606][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.113609][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.113612][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.113616][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.113620][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.113624][  T400]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.113629][  T400]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.113631][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.113633][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.113635][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   14.113642][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   14.113645][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.113661][  T400]  __sys_sendmsg (net/socket.c:2799)
[   14.113664][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.113670][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.113673][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.113676][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.113679][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.113681][  T400] RIP: 0033:0x7f0f41bb554e
[   14.113684][  T400] 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
[   14.113686][  T400] RSP: 002b:00007ffd17cd1ae0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.113689][  T400] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0f41bb554e
[   14.113691][  T400] RDX: 0000000000000000 RSI: 00007ffd17cd1b90 RDI: 0000000000000005
[   14.113691][  T400] RBP: 00007ffd17cd1af0 R08: 0000000000000000 R09: 0000000000000000
[   14.113692][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918961
[   14.113693][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd17cd2250
| [   29.606034][    C2] softirqs last disabled at (772101): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.606036][    C2] Preemption disabled at:
| [   29.606036][    C2] 0x0
| [   29.606047][    C2] Tainted: [W]=WARN
[   29.606048][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.606050][    C2] Call Trace:
[   29.606052][    C2]  <IRQ>
[   29.606054][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.606059][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.606062][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.606066][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   29.606069][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606073][    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))
[   29.606076][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.606079][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.606082][    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)
[   29.606084][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.606086][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   29.606088][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.606089][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   29.606093][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.606096][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.606097][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606099][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.606101][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.606104][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.606105][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606107][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606109][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.606110][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.606112][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.606114][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.606117][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.606119][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.606120][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.606122][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606123][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.606125][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.606127][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.606129][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.606131][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.606134][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.606136][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.606147][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.606149][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.606155][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.606161][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   29.606164][    C2]  _printk (kernel/printk/printk.c:2504)
[   29.606168][    C2]  ? snapshot_read.cold (user.c:?)
[   29.606169][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   29.606173][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.606175][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   29.606177][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   29.606179][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.606182][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.606184][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.606185][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.606188][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.606189][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.606195][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606197][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.606199][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.606205][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.606207][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.606213][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.606219][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.606225][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   29.606228][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.606230][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.606233][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.606235][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.606236][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606239][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.606241][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.606247][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.606249][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.606252][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.606254][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.606256][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.606257][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.606260][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606261][    C2]  handle_softirqs (kernel/softirq.c:645)
[   29.606263][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.606265][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.606267][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.606268][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   29.606270][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.606272][    C2]  </IRQ>
[   29.606273][    C2]  <TASK>
[   29.606274][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.606275][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.606278][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.606280][    C2] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   29.606282][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   29.606285][    C2] RAX: 00000000000bc803 RBX: ff11000001bec6c0 RCX: ffffffffb6cf0307
[   29.606287][    C2] RDX: ff11000001bec6c0 RSI: ffffffffb9a38af6 RDI: ffffffffb948d8e0
[   29.606288][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.606289][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   29.606289][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   29.606291][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.606294][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.606296][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   29.606298][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.606299][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   29.606301][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.606303][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.606304][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.606306][    C2]  do_idle (kernel/sched/idle.c:355)
[   29.606308][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.606309][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   29.606311][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   29.606313][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.666329][    C2]
| [   29.666397][    C2]
| [   29.666397][    C2] stack backtrace:
| [   29.666619][    C2] Tainted: [W]=WARN
[   29.666621][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.666622][    C2] Call Trace:
[   29.666623][    C2]  <IRQ>
[   29.666624][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.666628][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   29.666631][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.666634][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.666636][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.666637][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.666639][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.666641][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.666648][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.666651][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.666653][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.666659][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.666660][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.666666][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.666672][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.666678][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   29.666680][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.666682][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.666686][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.666688][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.666689][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.666691][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.666693][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.666700][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.666702][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.666704][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.666707][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.666709][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.666710][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.666713][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.666714][    C2]  handle_softirqs (kernel/softirq.c:645)
[   29.666716][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.666717][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.666719][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.666721][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   29.666722][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.666724][    C2]  </IRQ>
[   29.666724][    C2]  <TASK>
[   29.666725][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.666726][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.666728][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.666730][    C2] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   29.666732][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   29.666734][    C2] RAX: 00000000000bc803 RBX: ff11000001bec6c0 RCX: ffffffffb6cf0307
[   29.666736][    C2] RDX: ff11000001bec6c0 RSI: ffffffffb9a38af6 RDI: ffffffffb948d8e0
[   29.666737][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.666738][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   29.666738][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   29.666740][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.666742][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.666744][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   29.666745][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.666747][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   29.666748][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.666750][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.666751][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.666753][    C2]  do_idle (kernel/sched/idle.c:355)
[   29.666755][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.666756][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   29.666758][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   29.666759][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   88.042503][  T784] softirqs last disabled at (0): 0x0
| [   88.042505][  T784] Preemption disabled at:
| [   88.042505][  T784] 0x0
| [   88.042514][  T784] Tainted: [W]=WARN
[   88.042515][  T784] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.042517][  T784] Call Trace:
[   88.042519][  T784]  <TASK>
[   88.042520][  T784]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   88.042526][  T784]  __might_resched.cold (kernel/sched/core.c:9234)
[   88.042530][  T784]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   88.042534][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042538][  T784]  __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))
[   88.042542][  T784]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.042545][  T784]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.042548][  T784]  ? 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)
[   88.042550][  T784]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.042552][  T784]  put_chars (drivers/char/virtio_console.c:1176)
[   88.042554][  T784]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   88.042556][  T784]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   88.042558][  T784]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   88.042562][  T784]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   88.042565][  T784]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   88.042566][  T784]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   88.042568][  T784]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.042569][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042571][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042573][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042575][  T784]  console_emit_next_record (kernel/printk/printk.c:3183)
[   88.042577][  T784]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   88.042579][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042581][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042583][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042584][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042586][  T784]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   88.042588][  T784]  console_flush_one_record (kernel/printk/printk.c:3268)
[   88.042590][  T784]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   88.042593][  T784]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   88.042595][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042596][  T784]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   88.042598][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042600][  T784]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.042601][  T784]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   88.042603][  T784]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   88.042605][  T784]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   88.042607][  T784]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   88.042609][  T784]  vprintk_emit (kernel/printk/printk.c:2479)
[   88.042613][  T784]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   88.042614][  T784]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[   88.042618][  T784]  ? debug_object_activate (lib/debugobjects.c:884)
[   88.042621][  T784]  _printk (kernel/printk/printk.c:2504)
[   88.042624][  T784]  ? snapshot_read.cold (user.c:?)
[   88.042626][  T784]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.042628][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042630][  T784]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.042633][  T784] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   88.042647][  T784] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   88.042655][  T784] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   88.042662][  T784] br_dev_stop (net/bridge/br_device.c:193) bridge
[   88.042671][  T784]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   88.042674][  T784]  __dev_close_many (net/core/dev.c:1798)
[   88.042678][  T784]  ? netif_open (net/core/dev.c:1755)
[   88.042680][  T784]  ? trace_irq_enable.constprop.0 (./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/preemptirq.h:40)
[   88.042682][  T784]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   88.042684][  T784]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   88.042686][  T784]  ? __kernel_text_address (kernel/extable.c:79)
[   88.042688][  T784]  ? write_profile (profile.c:?)
[   88.042691][  T784]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   88.042694][  T784]  netif_change_flags (net/core/dev.c:9877)
[   88.042696][  T784]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   88.042698][  T784]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   88.042700][  T784]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   88.042701][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042703][  T784]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   88.042706][  T784]  ? kasan_save_stack (mm/kasan/common.c:58)
[   88.042709][  T784]  ? kasan_save_stack (mm/kasan/common.c:57)
[   88.042710][  T784]  ? kasan_save_track (mm/kasan/common.c:78)
[   88.042712][  T784]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   88.042713][  T784]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   88.042715][  T784]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   88.042716][  T784]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.042717][  T784]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.042720][  T784]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.042721][  T784]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.042723][  T784]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   88.042725][  T784]  ? ___sys_sendmsg (net/socket.c:2767)
[   88.042727][  T784]  ? __sys_sendmsg (net/socket.c:2799)
[   88.042728][  T784]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.042731][  T784]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.042734][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042736][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042737][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042739][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042741][  T784]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   88.042751][  T784]  ? __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)
[   88.042753][  T784]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   88.042755][  T784]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   88.042756][  T784]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   88.042758][  T784]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   88.042761][  T784]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   88.042763][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042765][  T784]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.042766][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042767][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042770][  T784]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   88.042773][  T784]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   88.042775][  T784]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   88.042776][  T784]  ? __kernel_text_address (kernel/extable.c:79)
[   88.042777][  T784]  ? write_profile (profile.c:?)
[   88.042779][  T784]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   88.042780][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042782][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042783][  T784]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   88.042787][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042788][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042790][  T784]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.042791][  T784]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.042793][  T784]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.042794][  T784]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   88.042796][  T784]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   88.042798][  T784]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.042800][  T784]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.042801][  T784]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.042803][  T784]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   88.042804][  T784]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   88.042806][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042808][  T784]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.042810][  T784]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.042812][  T784]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   88.042814][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042816][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042817][  T784]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.042819][  T784]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.042821][  T784]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   88.042823][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042825][  T784]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.042827][  T784]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   88.042828][  T784]  ? copy_msghdr_from_user (net/socket.c:2650)
[   88.042830][  T784]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   88.042832][  T784]  ? move_addr_to_kernel (net/socket.c:258)
[   88.042833][  T784]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   88.042836][  T784]  ___sys_sendmsg (net/socket.c:2767)
[   88.042838][  T784]  ? copy_msghdr_from_user (net/socket.c:2619)
[   88.042843][  T784]  __sys_sendmsg (net/socket.c:2799)
[   88.042844][  T784]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   88.042847][  T784]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.042849][  T784]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.042851][  T784]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   88.042853][  T784]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.042854][  T784] RIP: 0033:0x7fb1c4efe54e
[   88.042856][  T784] 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
[   88.042858][  T784] RSP: 002b:00007ffdc23074f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   88.042862][  T784] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb1c4efe54e
[   88.042864][  T784] RDX: 0000000000000000 RSI: 00007ffdc23075a0 RDI: 0000000000000005
[   88.042864][  T784] RBP: 00007ffdc2307500 R08: 0000000000000000 R09: 0000000000000000
[   88.042865][  T784] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9189ab


Finger prints:
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
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars