======================================
| [   10.408176][  T189] softirqs last disabled at (87974): llc_sap_open (./include/linux/spinlock.h:353 net/llc/llc_core.c:93) llc
| [   10.408178][  T189] Preemption disabled at:
| [   10.408179][  T189] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.408188][  T189] Tainted: [W]=WARN
[   10.408189][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.408191][  T189] Call Trace:
[   10.408192][  T189]  <TASK>
[   10.408194][  T189]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.408199][  T189]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.408200][  T189]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.408205][  T189]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.408208][  T189]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.408213][  T189]  __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))
[   10.408215][  T189]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.408221][  T189]  ? 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)
[   10.408224][  T189]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.408228][  T189]  put_chars (drivers/char/virtio_console.c:1176)
[   10.408230][  T189]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.408234][  T189]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.408239][  T189]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.408245][  T189]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.408248][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.408251][  T189]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.408256][  T189]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.408259][  T189]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.408260][  T189]  ? 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))
[   10.408263][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.408265][  T189]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.408269][  T189]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.408272][  T189]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.408274][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.408279][  T189]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.408281][  T189]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.408283][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.408285][  T189]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.408288][  T189]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.408290][  T189]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.408293][  T189]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.408296][  T189]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.408298][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.408301][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.408304][  T189]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   10.408306][  T189]  _printk (kernel/printk/printk.c:2504)
[   10.408310][  T189]  ? snapshot_read.cold (user.c:?)
[   10.408311][  T189]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   10.408316][  T189]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   10.408321][  T189]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   10.408324][  T189] br_init (bridge.mod.c:?) bridge
[   10.408338][  T189]  do_one_initcall (init/main.c:1357)
[   10.408342][  T189]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.408347][  T189]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.408349][  T189]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.408354][  T189]  do_init_module (kernel/module/main.c:3117)
[   10.408357][  T189]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.408361][  T189]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.408364][  T189]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.408368][  T189]  load_module (kernel/module/main.c:3593)
[   10.408375][  T189]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.408379][  T189]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.408383][  T189]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.408387][  T189]  init_module_from_file (kernel/module/main.c:3790)
[   10.408390][  T189]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   10.408397][  T189]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.408401][  T189]  ? 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)
[   10.408404][  T189]  idempotent_init_module (kernel/module/main.c:3802)
[   10.408407][  T189]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.408413][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.408415][  T189]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.408420][  T189]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.408422][  T189]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.408426][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.408428][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.408431][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.408433][  T189] RIP: 0033:0x7fa8944fa37d
[   10.408437][  T189] 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
[   10.408438][  T189] RSP: 002b:00007ffff2256d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.408441][  T189] RAX: ffffffffffffffda RBX: 000055bbde3aeb90 RCX: 00007fa8944fa37d
[   10.408442][  T189] RDX: 0000000000000000 RSI: 000055bba83e2ffd RDI: 0000000000000007
[   10.408443][  T189] RBP: 00007ffff2256e30 R08: 0000000000000000 R09: 0000000000000000
[   10.408444][  T189] R10: 0000000000000000 R11: 0000000000000246 R12: 000055bba83e2ffd
[   10.408445][  T189] R13: 000055bbde3aeb50 R14: 0000000000040000 R15: 0000000000000000
| [   10.411329][    C0]
| [   10.411330][    C0]
| [   10.411330][    C0] stack backtrace:
| [   10.411335][    C0] Tainted: [W]=WARN
[   10.411335][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.411336][    C0] Call Trace:
[   10.411337][    C0]  <IRQ>
[   10.411338][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.411341][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   10.411345][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   10.411347][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   10.411352][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   10.411355][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   10.411357][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   10.411359][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.411361][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   10.411363][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.411365][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.411367][    C0]  console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   10.411368][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   10.411369][    C0]  vprintk_emit (kernel/printk/printk.c:2478)
[   10.411371][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.411373][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   10.411375][    C0]  _printk (kernel/printk/printk.c:2504)
[   10.411377][    C0]  ? snapshot_read.cold (user.c:?)
[   10.411379][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   10.411381][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.411383][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   10.411385][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.411386][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.411388][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   10.411390][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   10.411391][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   10.411394][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.411396][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.411398][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.411400][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   10.411401][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   10.411403][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   10.411405][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.411408][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.411410][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   10.411412][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   10.411413][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.411415][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.411416][    C0]  handle_softirqs (kernel/softirq.c:645)
[   10.411418][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.411420][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   10.411422][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   10.411424][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   10.411425][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   10.411428][    C0]  </IRQ>
[   10.411428][    C0]  <TASK>
[   10.411429][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   10.411431][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   10.411432][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   10.411435][    C0] Code: 48 8b 3d d4 41 10 02 e8 1f 00 00 00 48 2b 05 98 72 b2 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 53 45 29 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 d4 41 10 02 	mov    0x21041d4(%rip),%rdi        # 0x21041db
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 98 72 b2 00 	sub    0xb27298(%rip),%rax        # 0xb272ab
  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 53 45 29 00 	verw   0x294553(%rip)        # 0x29457b
  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
[   10.411436][    C0] RSP: 0018:ffffffff9ca07cf8 EFLAGS: 00000296
[   10.411438][    C0] RAX: 000000000005a77d RBX: ffffffff9ca1c600 RCX: ffffffff998f4ce7
[   10.411439][    C0] RDX: ffffffff9ca1c600 RSI: ffffffff9c888c54 RDI: ffffffff9c293160
[   10.411440][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   10.411441][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff3940fa2
[   10.411441][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   10.411443][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.411446][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.411447][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   10.411449][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   10.411450][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   10.411452][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   10.411454][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   10.411456][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.411458][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.411459][    C0]  do_idle (kernel/sched/idle.c:355)
[   10.411461][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   10.411463][    C0]  rest_init (init/main.c:727)
[   10.411464][    C0]  ? __cpuidle_text_end (??:?)
[   10.411466][    C0]  ? rest_init (init/main.c:727)
[   10.411468][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   10.411471][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   10.411472][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   10.411475][    C0]  start_kernel (init/main.c:1185)
[   10.411477][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   10.411479][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   10.411480][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   11.539361][   T37] softirqs last disabled at (30718): kernel_fpu_begin_mask (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:475 (discriminator 2))
| [   11.539364][   T37] Preemption disabled at:
| [   11.539364][   T37] 0x0
| [   11.539375][   T37] Tainted: [W]=WARN
[   11.539376][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.539378][   T37] Workqueue: events_unbound linkwatch_event
[   11.539384][   T37] Call Trace:
[   11.539386][   T37]  <TASK>
[   11.539388][   T37]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.539392][   T37]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.539396][   T37]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.539399][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.539402][   T37]  __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))
[   11.539405][   T37]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.539408][   T37]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.539412][   T37]  ? 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)
[   11.539414][   T37]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.539417][   T37]  put_chars (drivers/char/virtio_console.c:1176)
[   11.539419][   T37]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.539420][   T37]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.539423][   T37]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.539427][   T37]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.539430][   T37]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.539432][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.539433][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.539436][   T37]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.539438][   T37]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.539440][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.539441][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.539442][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.539443][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.539445][   T37]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   11.539446][   T37]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.539448][   T37]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.539450][   T37]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.539451][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.539453][   T37]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.539454][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.539455][   T37]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.539456][   T37]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.539458][   T37]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   11.539460][   T37]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.539462][   T37]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.539463][   T37]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.539465][   T37]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.539467][   T37]  ? 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)
[   11.539469][   T37]  _printk (kernel/printk/printk.c:2504)
[   11.539472][   T37]  ? snapshot_read.cold (user.c:?)
[   11.539474][   T37]  ? netif_get_link_ksettings (net/ethtool/ioctl.c:450)
[   11.539477][   T37]  ? port_cost (net/bridge/br_if.c:40) bridge
[   11.539490][   T37]  ? br_multicast_flood (??:?) bridge
[   11.539499][   T37] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.539509][   T37] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.539517][   T37] br_stp_enable_port (net/bridge/br_stp_if.c:93) bridge
[   11.539524][   T37] br_port_carrier_check (net/bridge/br_if.c:90) bridge
[   11.539532][   T37] br_device_event (net/bridge/br.c:101) bridge
[   11.539539][   T37]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   11.539541][   T37]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   11.539544][   T37]  ? addrconf_notify (net/ipv6/addrconf.c:3796)
[   11.539548][   T37]  notifier_call_chain (kernel/notifier.c:85)
[   11.539551][   T37]  netif_state_change (net/core/dev.c:1625)
[   11.539554][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   11.539557][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   11.539558][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   11.539560][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.539561][   T37]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   11.539565][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   11.539567][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   11.539568][   T37]  process_one_work (kernel/workqueue.c:3387)
[   11.539572][   T37]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   11.539573][   T37]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.539575][   T37]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.539578][   T37]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   11.539580][   T37]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   11.539581][   T37]  kthread (kernel/kthread.c:436)
[   11.539584][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.539586][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   11.539588][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.539590][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   11.539592][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.539595][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   11.539597][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.096537][   T70] softirqs last disabled at (0): 0x0
| [   13.096540][   T70] Preemption disabled at:
| [   13.096541][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.096551][   T70] Tainted: [W]=WARN
[   13.096552][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.096554][   T70] Workqueue: netns cleanup_net
[   13.096560][   T70] Call Trace:
[   13.096561][   T70]  <TASK>
[   13.096563][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.096567][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.096569][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.096572][   T70]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   13.096574][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.096576][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096579][   T70]  __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))
[   13.096583][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.096586][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.096590][   T70]  ? 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)
[   13.096592][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.096594][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   13.096596][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.096598][   T70]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   13.096600][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.096604][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.096605][   T70]  ? vsnprintf (lib/vsprintf.c:2953 (discriminator 1))
[   13.096608][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.096610][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096611][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096613][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.096615][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.096616][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096617][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096618][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096619][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.096622][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   13.096623][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.096625][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.096627][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.096628][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.096630][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.096631][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096632][   T70]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   13.096633][   T70]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.096635][   T70]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   13.096637][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.096639][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.096640][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.096642][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.096643][   T70]  ? cleanup_net (net/core/net_namespace.c:706)
[   13.096645][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   13.096647][   T70]  ? kthread (kernel/kthread.c:436)
[   13.096649][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   13.096652][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   13.096655][   T70]  _printk (kernel/printk/printk.c:2504)
[   13.096658][   T70]  ? snapshot_read.cold (user.c:?)
[   13.096661][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   13.096663][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   13.096665][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   13.096667][   T70]  ? netdev_notice (net/core/dev.c:13194)
[   13.096669][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096670][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   13.096672][   T70]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   13.096675][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   13.096676][   T70]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.096678][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   13.096681][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[   13.096684][   T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   13.096697][   T70] br_dev_delete (net/bridge/br_if.c:387) bridge
[   13.096705][   T70] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   13.096712][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   13.096715][   T70]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   13.096716][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   13.096719][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   13.096721][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   13.096723][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.096724][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.096726][   T70]  process_one_work (kernel/workqueue.c:3387)
[   13.096728][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   13.096730][   T70]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.096731][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.096734][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   13.096736][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   13.096737][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   13.096739][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   13.096741][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   13.096742][   T70]  kthread (kernel/kthread.c:436)
[   13.096745][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.096747][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   13.096750][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   13.096752][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   13.096755][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   13.096758][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_trylock_spinning
llc_sap_open:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
kernel_fpu_begin_mask:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print