======================================
| [   10.623630][  T246] softirqs last disabled at (31851): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.623632][  T246] Preemption disabled at:
| [   10.623632][  T246] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.623642][  T246] Tainted: [W]=WARN
[   10.623643][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.623645][  T246] Call Trace:
[   10.623646][  T246]  <TASK>
[   10.623648][  T246]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.623654][  T246]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.623656][  T246]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.623661][  T246]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.623665][  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)
[   10.623670][  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))
[   10.623672][  T246]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.623678][  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)
[   10.623680][  T246]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.623683][  T246]  put_chars (drivers/char/virtio_console.c:1176)
[   10.623686][  T246]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.623687][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.623692][  T246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.623694][  T246]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.623698][  T246]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.623701][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.623706][  T246]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.623708][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.623713][  T246]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.623717][  T246]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.623719][  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))
[   10.623722][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.623724][  T246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.623728][  T246]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.623732][  T246]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.623734][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.623738][  T246]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.623741][  T246]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.623743][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.623745][  T246]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.623749][  T246]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.623750][  T246]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.623753][  T246]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.623757][  T246]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.623763][  T246]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.623766][  T246]  _printk (kernel/printk/printk.c:2504)
[   10.623770][  T246]  ? snapshot_read.cold (user.c:?)
[   10.623776][  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)
[   10.623779][  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
[   10.623782][  T246]  do_one_initcall (init/main.c:1357)
[   10.623785][  T246]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.623789][  T246]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.623792][  T246]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.623797][  T246]  do_init_module (kernel/module/main.c:3117)
[   10.623800][  T246]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.623804][  T246]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.623808][  T246]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.623811][  T246]  load_module (kernel/module/main.c:3593)
[   10.623818][  T246]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.623822][  T246]  ? __ia32_sys_fsconfig (??:?)
[   10.623825][  T246]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.623829][  T246]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.623833][  T246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.623836][  T246]  init_module_from_file (kernel/module/main.c:3790)
[   10.623839][  T246]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.623847][  T246]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.623851][  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)
[   10.623854][  T246]  idempotent_init_module (kernel/module/main.c:3802)
[   10.623857][  T246]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.623863][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.623865][  T246]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.623871][  T246]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.623873][  T246]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.623877][  T246]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.623878][  T246]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.623881][  T246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.623883][  T246] RIP: 0033:0x7fe3b63c137d
[   10.623887][  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
[   10.623888][  T246] RSP: 002b:00007fffd5070fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.623891][  T246] RAX: ffffffffffffffda RBX: 000055c68203e810 RCX: 00007fe3b63c137d
[   10.623892][  T246] RDX: 0000000000000000 RSI: 000055c66d3b0ffd RDI: 0000000000000000
[   10.623893][  T246] RBP: 00007fffd5071040 R08: 0000000000000000 R09: 0000000000000000
[   10.623894][  T246] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c66d3b0ffd
[   10.623895][  T246] R13: 000055c68203e960 R14: 0000000000040000 R15: 0000000000000000
| [   11.909075][  T317] softirqs last disabled at (17199): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.909078][  T317] Preemption disabled at:
| [   11.909079][  T317] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.909091][  T317] Tainted: [W]=WARN
[   11.909092][  T317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.909094][  T317] Call Trace:
[   11.909096][  T317]  <TASK>
[   11.909098][  T317]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.909105][  T317]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.909109][  T317]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.909115][  T317]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.909120][  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)
[   11.909128][  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))
[   11.909131][  T317]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.909140][  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)
[   11.909144][  T317]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.909149][  T317]  put_chars (drivers/char/virtio_console.c:1176)
[   11.909152][  T317]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   11.909155][  T317]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.909160][  T317]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.909165][  T317]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.909172][  T317]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.909176][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.909178][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.909187][  T317]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.909189][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.909194][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.909198][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.909205][  T317]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.909211][  T317]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.909214][  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))
[   11.909219][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.909222][  T317]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.909229][  T317]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.909236][  T317]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.909239][  T317]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.909248][  T317]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.909253][  T317]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.909255][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.909259][  T317]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.909265][  T317]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.909267][  T317]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.909273][  T317]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.909279][  T317]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.909289][  T317]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   11.909293][  T317]  _printk (kernel/printk/printk.c:2504)
[   11.909298][  T317]  ? snapshot_read.cold (user.c:?)
[   11.909309][  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)
[   11.909314][  T317] gact_init_module (net/sched/act_gact.c:180) act_gact
[   11.909318][  T317]  do_one_initcall (init/main.c:1357)
[   11.909322][  T317]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.909330][  T317]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.909334][  T317]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.909341][  T317]  do_init_module (kernel/module/main.c:3117)
[   11.909347][  T317]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.909353][  T317]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.909358][  T317]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.909365][  T317]  load_module (kernel/module/main.c:3593)
[   11.909383][  T317]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.909389][  T317]  ? __ia32_sys_fsconfig (??:?)
[   11.909393][  T317]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.909398][  T317]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.909403][  T317]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.909409][  T317]  init_module_from_file (kernel/module/main.c:3790)
[   11.909414][  T317]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.909429][  T317]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.909435][  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)
[   11.909440][  T317]  idempotent_init_module (kernel/module/main.c:3802)
[   11.909445][  T317]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.909456][  T317]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.909460][  T317]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.909469][  T317]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.909472][  T317]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.909477][  T317]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.909480][  T317]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.909484][  T317]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.909487][  T317] RIP: 0033:0x7fa23254d37d
[   11.909492][  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
[   11.909494][  T317] RSP: 002b:00007ffe80c8b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.909498][  T317] RAX: ffffffffffffffda RBX: 00005644db488810 RCX: 00007fa23254d37d
[   11.909500][  T317] RDX: 0000000000000000 RSI: 00005644a72bfffd RDI: 0000000000000000
[   11.909501][  T317] RBP: 00007ffe80c8b640 R08: 0000000000000000 R09: 0000000000000000
[   11.909503][  T317] R10: 0000000000000000 R11: 0000000000000246 R12: 00005644a72bfffd
[   11.909504][  T317] R13: 00005644db488960 R14: 0000000000040000 R15: 0000000000000000
| [   13.206508][  T401] softirqs last disabled at (24080): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.206511][  T401] Preemption disabled at:
| [   13.206512][  T401] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.206524][  T401] Tainted: [W]=WARN
[   13.206525][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.206527][  T401] Call Trace:
[   13.206529][  T401]  <TASK>
[   13.206531][  T401]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.206539][  T401]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.206542][  T401]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.206549][  T401]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.206559][  T401]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.206567][  T401]  __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))
[   13.206571][  T401]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.206579][  T401]  ? 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)
[   13.206582][  T401]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.206588][  T401]  put_chars (drivers/char/virtio_console.c:1176)
[   13.206590][  T401]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.206593][  T401]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.206599][  T401]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.206604][  T401]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.206608][  T401]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.206614][  T401]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.206618][  T401]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.206621][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.206623][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.206630][  T401]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.206633][  T401]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.206638][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.206642][  T401]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.206649][  T401]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.206655][  T401]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.206657][  T401]  ? 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))
[   13.206662][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.206666][  T401]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.206672][  T401]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.206679][  T401]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.206682][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.206691][  T401]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.206695][  T401]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.206698][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.206701][  T401]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.206708][  T401]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.206710][  T401]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.206716][  T401]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.206723][  T401]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.206726][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.206735][  T401]  _printk (kernel/printk/printk.c:2504)
[   13.206740][  T401]  ? snapshot_read.cold (user.c:?)
[   13.206746][  T401]  ? br_multicast_flood (??:?) bridge
[   13.206765][  T401]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.206767][  T401]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.206769][  T401]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.206777][  T401] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.206795][  T401] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.206809][  T401] new_nbp (net/bridge/br_if.c:449) bridge
[   13.206826][  T401] br_add_if (net/bridge/br_if.c:592) bridge
[   13.206839][  T401]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.206844][  T401]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.206848][  T401]  ? __kernel_text_address (kernel/extable.c:79)
[   13.206855][  T401]  do_set_master (net/core/rtnetlink.c:3071)
[   13.206863][  T401]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.206868][  T401]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.206872][  T401]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.206874][  T401]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.206877][  T401]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.206882][  T401]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.206886][  T401]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.206888][  T401]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.206893][  T401]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.206896][  T401]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.206899][  T401]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.206903][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.206906][  T401]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.206910][  T401]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.206917][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.206920][  T401]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.206924][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.206928][  T401]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.206930][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.206933][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.206936][  T401]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.206941][  T401]  ? __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)
[   13.206945][  T401]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.206948][  T401]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.206955][  T401]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.206957][  T401]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.206966][  T401]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.206975][  T401]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.206985][  T401]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.206988][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.206996][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.206998][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.207002][  T401]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.207005][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.207011][  T401]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.207014][  T401]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.207020][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.207022][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.207029][  T401]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.207032][  T401]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.207038][  T401]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.207041][  T401]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.207046][  T401]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.207057][  T401]  ? 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))
[   13.207059][  T401]  ? 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))
[   13.207066][  T401]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.207073][  T401]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.207077][  T401]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.207084][  T401]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.207091][  T401]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.207097][  T401]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.207106][  T401]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.207109][  T401]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.207113][  T401]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.207116][  T401]  ? move_addr_to_kernel (net/socket.c:258)
[   13.207129][  T401]  ___sys_sendmsg (net/socket.c:2767)
[   13.207133][  T401]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.207162][  T401]  __sys_sendmsg (net/socket.c:2799)
[   13.207167][  T401]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.207178][  T401]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.207184][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.207187][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.207192][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.207195][  T401] RIP: 0033:0x7f6c1602d54e
[   13.207200][  T401] 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
[   13.207202][  T401] RSP: 002b:00007ffcc22a8d80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.207206][  T401] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6c1602d54e
[   13.207208][  T401] RDX: 0000000000000000 RSI: 00007ffcc22a8e30 RDI: 0000000000000005
[   13.207210][  T401] RBP: 00007ffcc22a8d90 R08: 0000000000000000 R09: 0000000000000000
[   13.207211][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ab7d
[   13.207212][  T401] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcc22a94f0
| [   29.054669][    C0] softirqs last disabled at (1880417): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.054671][    C0] Preemption disabled at:
| [   29.054672][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   29.054681][    C0] Tainted: [W]=WARN
[   29.054682][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.054684][    C0] Call Trace:
[   29.054685][    C0]  <IRQ>
[   29.054687][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.054693][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   29.054694][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.054698][    C0]  ? validate_chain (kernel/locking/lockdep.c:157 kernel/locking/lockdep.c:202 kernel/locking/lockdep.c:3329 kernel/locking/lockdep.c:3924)
[   29.054700][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.054703][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   29.054706][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054710][    C0]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.054713][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.054715][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.054719][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.054720][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.054723][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   29.054725][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.054726][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   29.054730][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.054733][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.054734][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054736][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.054738][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.054741][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.054743][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054744][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054746][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.054748][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.054749][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.054751][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.054754][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.054756][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.054757][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.054759][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054761][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.054762][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.054764][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.054766][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.054767][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.054770][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.054771][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054773][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.054775][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   29.054779][    C0]  _printk (kernel/printk/printk.c:2504)
[   29.054782][    C0]  ? snapshot_read.cold (user.c:?)
[   29.054784][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   29.054788][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.054790][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   29.054792][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   29.054794][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.054797][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.054799][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.054800][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.054802][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.054804][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.054816][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054818][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.054820][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.054826][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.054828][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.054834][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.054840][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.054846][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   29.054850][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.054851][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.054855][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.054857][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.054858][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054861][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.054863][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.054869][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.054871][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.054873][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.054876][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.054878][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.054879][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.054882][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054883][    C0]  handle_softirqs (kernel/softirq.c:645)
[   29.054885][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.054887][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.054889][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.054890][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   29.054892][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.054894][    C0]  </IRQ>
[   29.054895][    C0]  <TASK>
[   29.054895][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.054897][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.054899][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.054902][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   29.054904][    C0] RSP: 0018:ffffffffa2407cf8 EFLAGS: 00000296
[   29.054907][    C0] RAX: 00000000001cb15f RBX: ffffffffa241c600 RCX: ffffffff9f4f0307
[   29.054908][    C0] RDX: ffffffffa241c600 RSI: ffffffffa2238af6 RDI: ffffffffa1c8d8e0
[   29.054909][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.054910][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4480fa2
[   29.054911][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   29.054913][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.054916][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.054917][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.054919][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   29.054921][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.054922][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   29.054924][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.054926][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.054927][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.054929][    C0]  do_idle (kernel/sched/idle.c:355)
[   29.054931][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.054932][    C0]  rest_init (init/main.c:727)
[   29.054934][    C0]  ? __cpuidle_text_end (??:?)
[   29.054937][    C0]  ? rest_init (init/main.c:727)
[   29.054939][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   29.054942][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   29.054945][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   29.054947][    C0]  start_kernel (init/main.c:1185)
[   29.054950][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   29.054952][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   29.054953][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.124477][    C0]
| [   29.124551][    C0]
| [   29.124551][    C0] stack backtrace:
| [   29.124795][    C0] Tainted: [W]=WARN
[   29.124796][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.124797][    C0] Call Trace:
[   29.124798][    C0]  <IRQ>
[   29.124799][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.124804][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   29.124807][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.124810][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.124812][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.124813][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.124816][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.124817][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.124825][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.124828][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.124830][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.124836][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.124837][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.124843][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.124849][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.124855][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   29.124857][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.124859][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.124863][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.124865][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.124867][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.124869][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.124871][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.124877][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.124879][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.124882][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.124884][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.124886][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.124888][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.124890][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.124892][    C0]  handle_softirqs (kernel/softirq.c:645)
[   29.124894][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.124895][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.124897][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.124899][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   29.124900][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.124902][    C0]  </IRQ>
[   29.124902][    C0]  <TASK>
[   29.124903][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.124905][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.124906][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.124908][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   29.124910][    C0] RSP: 0018:ffffffffa2407cf8 EFLAGS: 00000296
[   29.124912][    C0] RAX: 00000000001cb15f RBX: ffffffffa241c600 RCX: ffffffff9f4f0307
[   29.124914][    C0] RDX: ffffffffa241c600 RSI: ffffffffa2238af6 RDI: ffffffffa1c8d8e0
[   29.124915][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.124915][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4480fa2
[   29.124916][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   29.124918][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.124920][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.124922][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.124923][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   29.124925][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.124927][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   29.124928][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.124930][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.124931][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.124933][    C0]  do_idle (kernel/sched/idle.c:355)
[   29.124935][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.124936][    C0]  rest_init (init/main.c:727)
[   29.124938][    C0]  ? __cpuidle_text_end (??:?)
[   29.124941][    C0]  ? rest_init (init/main.c:727)
[   29.124943][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   29.124947][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   29.124949][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   29.124951][    C0]  start_kernel (init/main.c:1185)
[   29.124953][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   29.124955][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   29.124956][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   37.758150][  T565] softirqs last disabled at (0): 0x0
| [   37.758152][  T565] Preemption disabled at:
| [   37.758153][  T565] 0x0
| [   37.758161][  T565] Tainted: [W]=WARN
[   37.758162][  T565] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.758164][  T565] Call Trace:
[   37.758165][  T565]  <TASK>
[   37.758166][  T565]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.758172][  T565]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.758176][  T565]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.758179][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758183][  T565]  __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))
[   37.758186][  T565]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.758189][  T565]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.758193][  T565]  ? 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)
[   37.758195][  T565]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.758197][  T565]  put_chars (drivers/char/virtio_console.c:1176)
[   37.758199][  T565]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   37.758201][  T565]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.758203][  T565]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   37.758206][  T565]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.758209][  T565]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.758210][  T565]  ? 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)
[   37.758212][  T565]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.758213][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758215][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758217][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758219][  T565]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.758221][  T565]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.758223][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758225][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758226][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758228][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758230][  T565]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   37.758231][  T565]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.758233][  T565]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.758236][  T565]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.758238][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758239][  T565]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.758241][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758242][  T565]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.758244][  T565]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   37.758245][  T565]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   37.758247][  T565]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.758249][  T565]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.758251][  T565]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.758255][  T565]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.758257][  T565]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[   37.758261][  T565]  ? debug_object_activate (lib/debugobjects.c:884)
[   37.758263][  T565]  _printk (kernel/printk/printk.c:2504)
[   37.758266][  T565]  ? snapshot_read.cold (user.c:?)
[   37.758268][  T565]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   37.758269][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758271][  T565]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.758274][  T565] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   37.758287][  T565] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   37.758295][  T565] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   37.758302][  T565] br_dev_stop (net/bridge/br_device.c:193) bridge
[   37.758310][  T565]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   37.758314][  T565]  __dev_close_many (net/core/dev.c:1798)
[   37.758318][  T565]  ? netif_open (net/core/dev.c:1755)
[   37.758320][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758321][  T565]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   37.758323][  T565]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   37.758325][  T565]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   37.758327][  T565]  ? __kernel_text_address (kernel/extable.c:79)
[   37.758329][  T565]  ? write_profile (profile.c:?)
[   37.758332][  T565]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   37.758335][  T565]  netif_change_flags (net/core/dev.c:9877)
[   37.758337][  T565]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   37.758339][  T565]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.758340][  T565]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.758341][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758343][  T565]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   37.758346][  T565]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.758349][  T565]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.758350][  T565]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.758352][  T565]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.758353][  T565]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   37.758354][  T565]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   37.758355][  T565]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.758357][  T565]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.758359][  T565]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.758360][  T565]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.758362][  T565]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   37.758364][  T565]  ? ___sys_sendmsg (net/socket.c:2767)
[   37.758365][  T565]  ? __sys_sendmsg (net/socket.c:2799)
[   37.758367][  T565]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.758370][  T565]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.758372][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758374][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758375][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758377][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758379][  T565]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.758382][  T565]  ? __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)
[   37.758384][  T565]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.758385][  T565]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.758387][  T565]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.758389][  T565]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.758391][  T565]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.758393][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758394][  T565]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.758396][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758397][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758399][  T565]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   37.758402][  T565]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   37.758403][  T565]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   37.758405][  T565]  ? __kernel_text_address (kernel/extable.c:79)
[   37.758406][  T565]  ? write_profile (profile.c:?)
[   37.758407][  T565]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   37.758409][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758410][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758412][  T565]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   37.758415][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758417][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758418][  T565]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.758420][  T565]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.758421][  T565]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.758422][  T565]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   37.758424][  T565]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   37.758426][  T565]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.758428][  T565]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.758429][  T565]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.758430][  T565]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.758431][  T565]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   37.758434][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758436][  T565]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.758437][  T565]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.758439][  T565]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.758441][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758442][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758444][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.758446][  T565]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.758448][  T565]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.758449][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758451][  T565]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   37.758453][  T565]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   37.758454][  T565]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.758456][  T565]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   37.758458][  T565]  ? move_addr_to_kernel (net/socket.c:258)
[   37.758459][  T565]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   37.758461][  T565]  ___sys_sendmsg (net/socket.c:2767)
[   37.758463][  T565]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.758468][  T565]  __sys_sendmsg (net/socket.c:2799)
[   37.758469][  T565]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.758472][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.758474][  T565]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.758475][  T565]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.758477][  T565]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.758479][  T565] RIP: 0033:0x7f27b657954e
[   37.758481][  T565] 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
[   37.758482][  T565] RSP: 002b:00007ffe43e0b970 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.758486][  T565] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f27b657954e
[   37.758487][  T565] RDX: 0000000000000000 RSI: 00007ffe43e0ba20 RDI: 0000000000000005
[   37.758488][  T565] RBP: 00007ffe43e0b980 R08: 0000000000000000 R09: 0000000000000000
[   37.758489][  T565] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ab96


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__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