======================================
| [   10.872496][  T246] softirqs last disabled at (25699): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.872498][  T246] Preemption disabled at:
| [   10.872499][  T246] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.872509][  T246] Tainted: [W]=WARN
[   10.872510][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.872512][  T246] Call Trace:
[   10.872514][  T246]  <TASK>
[   10.872515][  T246]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.872521][  T246]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.872524][  T246]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.872528][  T246]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.872532][  T246]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.872538][  T246]  __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))
[   10.872540][  T246]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.872546][  T246]  ? 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)
[   10.872548][  T246]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.872551][  T246]  put_chars (drivers/char/virtio_console.c:1176)
[   10.872554][  T246]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.872555][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.872560][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.872563][  T246]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.872567][  T246]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.872570][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.872575][  T246]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.872577][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.872582][  T246]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.872586][  T246]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.872588][  T246]  ? 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))
[   10.872591][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.872593][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.872597][  T246]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.872601][  T246]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.872603][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.872608][  T246]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.872610][  T246]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.872612][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.872615][  T246]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.872618][  T246]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.872620][  T246]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.872623][  T246]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.872627][  T246]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.872633][  T246]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.872638][  T246]  _printk (kernel/printk/printk.c:2504)
[   10.872642][  T246]  ? snapshot_read.cold (user.c:?)
[   10.872648][  T246]  ? 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)
[   10.872651][  T246] 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
[   10.872654][  T246]  do_one_initcall (init/main.c:1357)
[   10.872657][  T246]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.872662][  T246]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.872665][  T246]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.872669][  T246]  do_init_module (kernel/module/main.c:3117)
[   10.872673][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.872678][  T246]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.872681][  T246]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.872685][  T246]  load_module (kernel/module/main.c:3593)
[   10.872692][  T246]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.872696][  T246]  ? __ia32_sys_fsconfig (??:?)
[   10.872698][  T246]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.872703][  T246]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.872706][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.872710][  T246]  init_module_from_file (kernel/module/main.c:3790)
[   10.872713][  T246]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.872721][  T246]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.872725][  T246]  ? 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)
[   10.872728][  T246]  idempotent_init_module (kernel/module/main.c:3802)
[   10.872732][  T246]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.872738][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.872740][  T246]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.872746][  T246]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.872748][  T246]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.872752][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.872754][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.872756][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.872759][  T246] RIP: 0033:0x7f44c96a637d
[   10.872763][  T246] 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
[   10.872765][  T246] RSP: 002b:00007ffecba87c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.872768][  T246] RAX: ffffffffffffffda RBX: 000055e445736810 RCX: 00007f44c96a637d
[   10.872769][  T246] RDX: 0000000000000000 RSI: 000055e427339ffd RDI: 0000000000000000
[   10.872770][  T246] RBP: 00007ffecba87d30 R08: 0000000000000000 R09: 0000000000000000
[   10.872771][  T246] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e427339ffd
[   10.872771][  T246] R13: 000055e445736960 R14: 0000000000040000 R15: 0000000000000000
| [   12.175067][  T317] softirqs last disabled at (15005): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.175069][  T317] Preemption disabled at:
| [   12.175070][  T317] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.175079][  T317] Tainted: [W]=WARN
[   12.175080][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.175081][  T317] Call Trace:
[   12.175083][  T317]  <TASK>
[   12.175084][  T317]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.175090][  T317]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.175092][  T317]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.175097][  T317]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.175101][  T317]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.175106][  T317]  __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))
[   12.175108][  T317]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.175114][  T317]  ? 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)
[   12.175116][  T317]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.175119][  T317]  put_chars (drivers/char/virtio_console.c:1176)
[   12.175121][  T317]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   12.175124][  T317]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.175127][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.175130][  T317]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.175134][  T317]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.175137][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.175139][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.175143][  T317]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.175145][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.175148][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.175151][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.175155][  T317]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.175159][  T317]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.175160][  T317]  ? 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))
[   12.175164][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.175166][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.175170][  T317]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.175174][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.175176][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.175183][  T317]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.175186][  T317]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.175188][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.175190][  T317]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.175194][  T317]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.175195][  T317]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.175198][  T317]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.175202][  T317]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.175208][  T317]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   12.175211][  T317]  _printk (kernel/printk/printk.c:2504)
[   12.175215][  T317]  ? snapshot_read.cold (user.c:?)
[   12.175221][  T317]  ? 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)
[   12.175224][  T317] gact_init_module (net/sched/act_gact.c:180) act_gact
[   12.175226][  T317]  do_one_initcall (init/main.c:1357)
[   12.175229][  T317]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.175233][  T317]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.175236][  T317]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.175241][  T317]  do_init_module (kernel/module/main.c:3117)
[   12.175244][  T317]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.175249][  T317]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.175252][  T317]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.175256][  T317]  load_module (kernel/module/main.c:3593)
[   12.175263][  T317]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.175267][  T317]  ? __ia32_sys_fsconfig (??:?)
[   12.175270][  T317]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   12.175273][  T317]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.175275][  T317]  ? backing_file_read_iter (fs/backing-file.c:211)
[   12.175278][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.175282][  T317]  init_module_from_file (kernel/module/main.c:3790)
[   12.175285][  T317]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.175293][  T317]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.175297][  T317]  ? 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)
[   12.175300][  T317]  idempotent_init_module (kernel/module/main.c:3802)
[   12.175303][  T317]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.175309][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.175312][  T317]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.175318][  T317]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.175320][  T317]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.175323][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.175325][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.175328][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.175330][  T317] RIP: 0033:0x7f2bb8d0c37d
[   12.175334][  T317] 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
[   12.175335][  T317] RSP: 002b:00007fffdebd0c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.175338][  T317] RAX: ffffffffffffffda RBX: 000055b46b28e810 RCX: 00007f2bb8d0c37d
[   12.175340][  T317] RDX: 0000000000000000 RSI: 000055b443d6fffd RDI: 0000000000000000
[   12.175341][  T317] RBP: 00007fffdebd0ce0 R08: 0000000000000000 R09: 0000000000000000
[   12.175341][  T317] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b443d6fffd
[   12.175342][  T317] R13: 000055b46b28e960 R14: 0000000000040000 R15: 0000000000000000
| [   13.242896][  T400] softirqs last disabled at (12604): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.242899][  T400] Preemption disabled at:
| [   13.242899][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.242913][  T400] Tainted: [W]=WARN
[   13.242914][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.242916][  T400] Call Trace:
[   13.242918][  T400]  <TASK>
[   13.242919][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.242925][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.242927][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.242932][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.242936][  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)
[   13.242941][  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))
[   13.242943][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.242949][  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)
[   13.242951][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.242955][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   13.242957][  T400]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.242959][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.242962][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.242966][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.242968][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.242971][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.242974][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.242976][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.242978][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.242982][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.242984][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.242987][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.242989][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.242993][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.242996][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.242998][  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))
[   13.243001][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.243004][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.243007][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.243011][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.243013][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.243018][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.243021][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.243023][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.243025][  T400]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.243028][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.243030][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.243033][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.243038][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.243040][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.243045][  T400]  _printk (kernel/printk/printk.c:2504)
[   13.243048][  T400]  ? snapshot_read.cold (user.c:?)
[   13.243052][  T400]  ? br_multicast_flood (??:?) bridge
[   13.243065][  T400]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.243066][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.243067][  T400]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.243071][  T400] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.243082][  T400] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.243090][  T400] new_nbp (net/bridge/br_if.c:449) bridge
[   13.243100][  T400] br_add_if (net/bridge/br_if.c:592) bridge
[   13.243107][  T400]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.243111][  T400]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.243113][  T400]  ? __kernel_text_address (kernel/extable.c:79)
[   13.243117][  T400]  do_set_master (net/core/rtnetlink.c:3071)
[   13.243122][  T400]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.243125][  T400]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.243128][  T400]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.243129][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.243131][  T400]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.243135][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.243137][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.243139][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.243141][  T400]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.243144][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.243146][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.243148][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.243150][  T400]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.243153][  T400]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.243158][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.243159][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.243162][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.243164][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.243166][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.243167][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.243170][  T400]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.243173][  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)
[   13.243179][  T400]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.243181][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.243184][  T400]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.243186][  T400]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.243191][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.243196][  T400]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.243201][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.243203][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.243207][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.243209][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.243211][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.243213][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.243217][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.243219][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.243222][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.243223][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.243227][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.243229][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.243232][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.243234][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.243237][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.243243][  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))
[   13.243244][  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))
[   13.243248][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.243252][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.243255][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.243258][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.243262][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.243266][  T400]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.243271][  T400]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.243273][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.243275][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.243277][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   13.243284][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   13.243287][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.243302][  T400]  __sys_sendmsg (net/socket.c:2799)
[   13.243305][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.243311][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.243314][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.243317][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.243320][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.243322][  T400] RIP: 0033:0x7f586428d54e
[   13.243325][  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
[   13.243327][  T400] RSP: 002b:00007ffd86b67c00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.243330][  T400] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f586428d54e
[   13.243331][  T400] RDX: 0000000000000000 RSI: 00007ffd86b67cb0 RDI: 0000000000000005
[   13.243332][  T400] RBP: 00007ffd86b67c10 R08: 0000000000000000 R09: 0000000000000000
[   13.243333][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917eb9
[   13.243334][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd86b68370
| [   28.615282][    C2] softirqs last disabled at (3118715): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.615284][    C2] Preemption disabled at:
| [   28.615284][    C2] 0x0
| [   28.615295][    C2] Tainted: [W]=WARN
[   28.615296][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.615298][    C2] Call Trace:
[   28.615300][    C2]  <IRQ>
[   28.615302][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.615307][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.615311][    C2]  ? validate_chain (kernel/locking/lockdep.c:157 kernel/locking/lockdep.c:202 kernel/locking/lockdep.c:3329 kernel/locking/lockdep.c:3924)
[   28.615314][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.615318][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   28.615321][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615325][    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))
[   28.615328][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.615330][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.615334][    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)
[   28.615336][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.615338][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   28.615340][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.615342][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.615345][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.615349][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.615350][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615352][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.615354][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.615357][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.615358][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615360][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615362][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.615364][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.615365][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.615368][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.615370][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.615372][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.615374][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.615375][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615377][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.615378][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.615380][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.615382][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.615384][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.615387][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.615388][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.615401][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.615402][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.615409][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.615415][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   28.615419][    C2]  _printk (kernel/printk/printk.c:2504)
[   28.615422][    C2]  ? snapshot_read.cold (user.c:?)
[   28.615423][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   28.615427][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.615430][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   28.615431][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   28.615434][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.615437][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.615439][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.615440][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.615442][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.615444][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.615451][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615452][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.615454][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.615460][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.615462][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.615468][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.615475][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.615481][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   28.615484][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.615486][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.615489][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.615491][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.615493][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615495][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.615497][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.615504][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.615506][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.615508][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.615511][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.615513][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.615514][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.615517][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615518][    C2]  handle_softirqs (kernel/softirq.c:645)
[   28.615520][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.615522][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.615524][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.615525][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   28.615527][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.615530][    C2]  </IRQ>
[   28.615530][    C2]  <TASK>
[   28.615531][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.615532][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.615535][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.615538][    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
[   28.615539][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   28.615543][    C2] RAX: 00000000002f9679 RBX: ff11000001bec6c0 RCX: ffffffff898f0307
[   28.615544][    C2] RDX: ff11000001bec6c0 RSI: ffffffff8c638af6 RDI: ffffffff8c08d8e0
[   28.615545][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.615546][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   28.615547][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.615548][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.615551][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.615553][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   28.615555][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.615557][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   28.615558][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.615561][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.615563][    C2]  do_idle (kernel/sched/idle.c:355)
[   28.615564][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.615566][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.615568][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.615570][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.678574][    C2]
| [   28.678640][    C2]
| [   28.678640][    C2] stack backtrace:
| [   28.678858][    C2] Tainted: [W]=WARN
[   28.678859][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.678860][    C2] Call Trace:
[   28.678861][    C2]  <IRQ>
[   28.678863][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.678867][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   28.678870][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   28.678873][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   28.678875][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   28.678877][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   28.678879][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.678881][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.678888][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.678891][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.678893][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.678899][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   28.678901][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.678908][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   28.678914][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.678921][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   28.678923][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   28.678924][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   28.678928][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.678930][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.678932][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.678934][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   28.678936][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   28.678943][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   28.678945][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.678947][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.678950][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   28.678952][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   28.678953][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.678956][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.678957][    C2]  handle_softirqs (kernel/softirq.c:645)
[   28.678959][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.678961][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   28.678963][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   28.678964][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   28.678966][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   28.678967][    C2]  </IRQ>
[   28.678968][    C2]  <TASK>
[   28.678969][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.678970][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   28.678972][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   28.678974][    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
[   28.678976][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   28.678979][    C2] RAX: 00000000002f9679 RBX: ff11000001bec6c0 RCX: ffffffff898f0307
[   28.678980][    C2] RDX: ff11000001bec6c0 RSI: ffffffff8c638af6 RDI: ffffffff8c08d8e0
[   28.678981][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   28.678982][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   28.678983][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   28.678984][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.678986][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   28.678988][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   28.678990][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   28.678991][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   28.678998][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   28.679000][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.679002][    C2]  do_idle (kernel/sched/idle.c:355)
[   28.679004][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   28.679005][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   28.679006][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   28.679008][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   87.252551][  T786] softirqs last disabled at (0): 0x0
| [   87.252553][  T786] Preemption disabled at:
| [   87.252554][  T786] 0x0
| [   87.252563][  T786] Tainted: [W]=WARN
[   87.252564][  T786] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.252566][  T786] Call Trace:
[   87.252567][  T786]  <TASK>
[   87.252569][  T786]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.252574][  T786]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.252578][  T786]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.252582][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252586][  T786]  __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))
[   87.252590][  T786]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.252592][  T786]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.252596][  T786]  ? 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)
[   87.252598][  T786]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.252600][  T786]  put_chars (drivers/char/virtio_console.c:1176)
[   87.252602][  T786]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   87.252604][  T786]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.252606][  T786]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   87.252609][  T786]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.252612][  T786]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.252613][  T786]  ? 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)
[   87.252615][  T786]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.252616][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252618][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252620][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252622][  T786]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.252624][  T786]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.252626][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252628][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252630][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252631][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252633][  T786]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   87.252635][  T786]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.252637][  T786]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.252640][  T786]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.252642][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252643][  T786]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.252645][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252646][  T786]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.252648][  T786]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   87.252649][  T786]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   87.252651][  T786]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.252653][  T786]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.252655][  T786]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.252660][  T786]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.252661][  T786]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[   87.252665][  T786]  ? debug_object_activate (lib/debugobjects.c:884)
[   87.252668][  T786]  _printk (kernel/printk/printk.c:2504)
[   87.252671][  T786]  ? snapshot_read.cold (user.c:?)
[   87.252673][  T786]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.252675][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252676][  T786]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.252680][  T786] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   87.252693][  T786] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   87.252701][  T786] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   87.252708][  T786] br_dev_stop (net/bridge/br_device.c:193) bridge
[   87.252717][  T786]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.252721][  T786]  __dev_close_many (net/core/dev.c:1798)
[   87.252725][  T786]  ? netif_open (net/core/dev.c:1755)
[   87.252726][  T786]  ? 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)
[   87.252728][  T786]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   87.252731][  T786]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   87.252733][  T786]  ? __kernel_text_address (kernel/extable.c:79)
[   87.252735][  T786]  ? write_profile (profile.c:?)
[   87.252737][  T786]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.252740][  T786]  netif_change_flags (net/core/dev.c:9877)
[   87.252743][  T786]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   87.252745][  T786]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   87.252746][  T786]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   87.252747][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252749][  T786]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.252752][  T786]  ? kasan_save_stack (mm/kasan/common.c:58)
[   87.252755][  T786]  ? kasan_save_stack (mm/kasan/common.c:57)
[   87.252756][  T786]  ? kasan_save_track (mm/kasan/common.c:78)
[   87.252758][  T786]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.252759][  T786]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   87.252761][  T786]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   87.252762][  T786]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.252763][  T786]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.252765][  T786]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.252767][  T786]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.252768][  T786]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.252770][  T786]  ? ___sys_sendmsg (net/socket.c:2767)
[   87.252772][  T786]  ? __sys_sendmsg (net/socket.c:2799)
[   87.252774][  T786]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.252776][  T786]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.252779][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252781][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252782][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252784][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252786][  T786]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   87.252789][  T786]  ? __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)
[   87.252791][  T786]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   87.252793][  T786]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.252794][  T786]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   87.252796][  T786]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   87.252798][  T786]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.252800][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252802][  T786]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.252803][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252805][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252807][  T786]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   87.252810][  T786]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   87.252812][  T786]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   87.252813][  T786]  ? __kernel_text_address (kernel/extable.c:79)
[   87.252814][  T786]  ? write_profile (profile.c:?)
[   87.252815][  T786]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.252817][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252818][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252820][  T786]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   87.252824][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252825][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252827][  T786]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.252828][  T786]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.252830][  T786]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.252831][  T786]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.252833][  T786]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.252835][  T786]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.252836][  T786]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.252838][  T786]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.252839][  T786]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.252841][  T786]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   87.252843][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252845][  T786]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.252847][  T786]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.252849][  T786]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.252850][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252852][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252854][  T786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.252856][  T786]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.252857][  T786]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   87.252859][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252861][  T786]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.252863][  T786]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.252865][  T786]  ? copy_msghdr_from_user (net/socket.c:2650)
[   87.252866][  T786]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   87.252868][  T786]  ? move_addr_to_kernel (net/socket.c:258)
[   87.252869][  T786]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.252872][  T786]  ___sys_sendmsg (net/socket.c:2767)
[   87.252873][  T786]  ? copy_msghdr_from_user (net/socket.c:2619)
[   87.252878][  T786]  __sys_sendmsg (net/socket.c:2799)
[   87.252880][  T786]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   87.252883][  T786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.252885][  T786]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.252886][  T786]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   87.252888][  T786]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.252890][  T786] RIP: 0033:0x7f3649beb54e
[   87.252892][  T786] 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
[   87.252894][  T786] RSP: 002b:00007ffc21db57a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.252897][  T786] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3649beb54e
[   87.252899][  T786] RDX: 0000000000000000 RSI: 00007ffc21db5850 RDI: 0000000000000005
[   87.252900][  T786] RBP: 00007ffc21db57b0 R08: 0000000000000000 R09: 0000000000000000
[   87.252900][  T786] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917f03


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