======================================
| [   11.617282][  T244] softirqs last disabled at (22967): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.617284][  T244] Preemption disabled at:
| [   11.617285][  T244] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.617294][  T244] Tainted: [W]=WARN
[   11.617295][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.617297][  T244] Call Trace:
[   11.617299][  T244]  <TASK>
[   11.617300][  T244]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.617305][  T244]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.617308][  T244]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.617312][  T244]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.617316][  T244]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.617321][  T244]  __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))
[   11.617324][  T244]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.617329][  T244]  ? 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)
[   11.617332][  T244]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.617335][  T244]  put_chars (drivers/char/virtio_console.c:1176)
[   11.617338][  T244]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.617339][  T244]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.617344][  T244]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.617346][  T244]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.617351][  T244]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.617354][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.617359][  T244]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.617361][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.617366][  T244]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.617370][  T244]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.617372][  T244]  ? 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))
[   11.617375][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.617377][  T244]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.617381][  T244]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.617385][  T244]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.617386][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.617392][  T244]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.617394][  T244]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.617396][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.617398][  T244]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.617402][  T244]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.617404][  T244]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.617407][  T244]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.617411][  T244]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.617416][  T244]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.617421][  T244]  _printk (kernel/printk/printk.c:2504)
[   11.617424][  T244]  ? snapshot_read.cold (user.c:?)
[   11.617430][  T244]  ? 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)
[   11.617433][  T244] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   11.617437][  T244]  do_one_initcall (init/main.c:1357)
[   11.617439][  T244]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.617443][  T244]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.617446][  T244]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.617451][  T244]  do_init_module (kernel/module/main.c:3117)
[   11.617454][  T244]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.617459][  T244]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.617462][  T244]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.617465][  T244]  load_module (kernel/module/main.c:3593)
[   11.617473][  T244]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.617476][  T244]  ? __ia32_sys_fsconfig (??:?)
[   11.617479][  T244]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.617483][  T244]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.617486][  T244]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.617490][  T244]  init_module_from_file (kernel/module/main.c:3790)
[   11.617493][  T244]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.617501][  T244]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.617504][  T244]  ? 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)
[   11.617507][  T244]  idempotent_init_module (kernel/module/main.c:3802)
[   11.617511][  T244]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.617517][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.617519][  T244]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.617524][  T244]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.617527][  T244]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.617530][  T244]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.617532][  T244]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.617535][  T244]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.617537][  T244] RIP: 0033:0x7f834db3437d
[   11.617540][  T244] 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
[   11.617542][  T244] RSP: 002b:00007ffec9208978 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.617545][  T244] RAX: ffffffffffffffda RBX: 00005558c01c8810 RCX: 00007f834db3437d
[   11.617546][  T244] RDX: 0000000000000000 RSI: 00005558b2f30ffd RDI: 0000000000000000
[   11.617547][  T244] RBP: 00007ffec9208a10 R08: 0000000000000000 R09: 0000000000000000
[   11.617548][  T244] R10: 0000000000000000 R11: 0000000000000246 R12: 00005558b2f30ffd
[   11.617548][  T244] R13: 00005558c01c8960 R14: 0000000000040000 R15: 0000000000000000
| [   12.919083][  T315] softirqs last disabled at (23717): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.919085][  T315] Preemption disabled at:
| [   12.919086][  T315] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.919095][  T315] Tainted: [W]=WARN
[   12.919096][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.919098][  T315] Call Trace:
[   12.919100][  T315]  <TASK>
[   12.919101][  T315]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.919107][  T315]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.919109][  T315]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.919113][  T315]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.919117][  T315]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.919122][  T315]  __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))
[   12.919124][  T315]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.919130][  T315]  ? 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)
[   12.919132][  T315]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.919135][  T315]  put_chars (drivers/char/virtio_console.c:1176)
[   12.919137][  T315]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   12.919140][  T315]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.919143][  T315]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.919146][  T315]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.919150][  T315]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.919153][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.919154][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.919159][  T315]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.919160][  T315]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.919163][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.919166][  T315]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.919170][  T315]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.919173][  T315]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.919175][  T315]  ? 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))
[   12.919178][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.919181][  T315]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.919184][  T315]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.919188][  T315]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.919190][  T315]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.919195][  T315]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.919198][  T315]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.919199][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.919202][  T315]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.919205][  T315]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.919207][  T315]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.919210][  T315]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.919214][  T315]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.919220][  T315]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   12.919222][  T315]  _printk (kernel/printk/printk.c:2504)
[   12.919226][  T315]  ? snapshot_read.cold (user.c:?)
[   12.919232][  T315]  ? 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)
[   12.919235][  T315] gact_init_module (net/sched/act_gact.c:180) act_gact
[   12.919237][  T315]  do_one_initcall (init/main.c:1357)
[   12.919240][  T315]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.919244][  T315]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.919248][  T315]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.919252][  T315]  do_init_module (kernel/module/main.c:3117)
[   12.919256][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.919260][  T315]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.919263][  T315]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.919267][  T315]  load_module (kernel/module/main.c:3593)
[   12.919274][  T315]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.919278][  T315]  ? __ia32_sys_fsconfig (??:?)
[   12.919281][  T315]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.919283][  T315]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.919287][  T315]  init_module_from_file (kernel/module/main.c:3790)
[   12.919290][  T315]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.919298][  T315]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.919301][  T315]  ? 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)
[   12.919304][  T315]  idempotent_init_module (kernel/module/main.c:3802)
[   12.919307][  T315]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.919314][  T315]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.919316][  T315]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.919322][  T315]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.919324][  T315]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.919328][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.919329][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.919332][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.919335][  T315] RIP: 0033:0x7f819582a37d
[   12.919338][  T315] 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
[   12.919340][  T315] RSP: 002b:00007ffec4091468 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.919343][  T315] RAX: ffffffffffffffda RBX: 000056083f495810 RCX: 00007f819582a37d
[   12.919344][  T315] RDX: 0000000000000000 RSI: 0000560810199ffd RDI: 0000000000000000
[   12.919345][  T315] RBP: 00007ffec4091500 R08: 0000000000000000 R09: 0000000000000000
[   12.919346][  T315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560810199ffd
[   12.919346][  T315] R13: 000056083f495960 R14: 0000000000040000 R15: 0000000000000000
| [   14.069409][  T399] softirqs last disabled at (23668): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.069411][  T399] Preemption disabled at:
| [   14.069412][  T399] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.069422][  T399] Tainted: [W]=WARN
[   14.069423][  T399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.069424][  T399] Call Trace:
[   14.069426][  T399]  <TASK>
[   14.069428][  T399]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.069433][  T399]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.069436][  T399]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.069440][  T399]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.069444][  T399]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.069449][  T399]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   14.069452][  T399]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.069457][  T399]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.069460][  T399]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.069463][  T399]  put_chars (drivers/char/virtio_console.c:1176)
[   14.069465][  T399]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.069467][  T399]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.069470][  T399]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.069474][  T399]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.069476][  T399]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.069480][  T399]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.069483][  T399]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.069484][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069486][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069490][  T399]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.069492][  T399]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.069495][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069497][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.069501][  T399]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.069505][  T399]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.069507][  T399]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   14.069510][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069512][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.069516][  T399]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.069520][  T399]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.069522][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069527][  T399]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.069530][  T399]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.069532][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069534][  T399]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.069538][  T399]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.069539][  T399]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.069543][  T399]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.069547][  T399]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.069549][  T399]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.069554][  T399]  _printk (kernel/printk/printk.c:2504)
[   14.069557][  T399]  ? snapshot_read.cold (user.c:?)
[   14.069561][  T399]  ? br_multicast_flood (??:?) bridge
[   14.069581][  T399]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.069582][  T399]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.069583][  T399]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.069588][  T399] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.069598][  T399] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.069607][  T399] new_nbp (net/bridge/br_if.c:449) bridge
[   14.069616][  T399] br_add_if (net/bridge/br_if.c:592) bridge
[   14.069623][  T399]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.069627][  T399]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.069629][  T399]  ? __kernel_text_address (kernel/extable.c:79)
[   14.069633][  T399]  do_set_master (net/core/rtnetlink.c:3071)
[   14.069638][  T399]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.069641][  T399]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.069644][  T399]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.069645][  T399]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.069647][  T399]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.069650][  T399]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.069653][  T399]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.069655][  T399]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.069657][  T399]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.069660][  T399]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.069662][  T399]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.069664][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069666][  T399]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   14.069670][  T399]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.069674][  T399]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.069676][  T399]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.069679][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069681][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.069683][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069684][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069687][  T399]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.069691][  T399]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   14.069693][  T399]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.069695][  T399]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.069699][  T399]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.069700][  T399]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.069705][  T399]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.069710][  T399]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.069715][  T399]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.069717][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069721][  T399]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.069723][  T399]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.069725][  T399]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.069727][  T399]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.069730][  T399]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.069732][  T399]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.069735][  T399]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.069737][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069741][  T399]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.069743][  T399]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.069746][  T399]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.069748][  T399]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.069751][  T399]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.069756][  T399]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   14.069760][  T399]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   14.069765][  T399]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.069768][  T399]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.069771][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.069775][  T399]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.069778][  T399]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.069782][  T399]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.069787][  T399]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.069789][  T399]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.069791][  T399]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.069793][  T399]  ? move_addr_to_kernel (net/socket.c:258)
[   14.069800][  T399]  ___sys_sendmsg (net/socket.c:2767)
[   14.069803][  T399]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.069818][  T399]  __sys_sendmsg (net/socket.c:2799)
[   14.069821][  T399]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.069827][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.069830][  T399]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.069833][  T399]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.069835][  T399]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.069837][  T399] RIP: 0033:0x7f3b5132054e
[   14.069841][  T399] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   14.069843][  T399] RSP: 002b:00007fff930df0e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.069845][  T399] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3b5132054e
[   14.069847][  T399] RDX: 0000000000000000 RSI: 00007fff930df190 RDI: 0000000000000005
[   14.069848][  T399] RBP: 00007fff930df0f0 R08: 0000000000000000 R09: 0000000000000000
[   14.069849][  T399] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b56a
[   14.069850][  T399] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff930df850
| [   29.548897][    C3] softirqs last disabled at (1844027): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.548899][    C3] Preemption disabled at:
| [   29.548900][    C3] 0x0
| [   29.548914][    C3] Tainted: [W]=WARN
[   29.548915][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.548917][    C3] Call Trace:
[   29.548920][    C3]  <IRQ>
[   29.548922][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.548928][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.548934][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.548938][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   29.548941][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.548946][    C3]  __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))
[   29.548950][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.548954][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.548958][    C3]  ? 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)
[   29.548961][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.548964][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   29.548967][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.548970][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   29.548974][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.548979][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.548981][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.548984][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.548987][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.548991][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.548994][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.548996][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.548999][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.549002][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.549004][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.549007][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.549011][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.549014][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.549016][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.549019][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.549021][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.549023][    C3]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.549026][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.549028][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.549031][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.549035][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.549037][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.549054][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.549056][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.549067][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.549078][    C3]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   29.549083][    C3]  _printk (kernel/printk/printk.c:2504)
[   29.549087][    C3]  ? snapshot_read.cold (user.c:?)
[   29.549089][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   29.549095][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.549098][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   29.549100][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   29.549104][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.549108][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.549111][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.549114][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.549117][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.549120][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.549131][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.549134][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.549136][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.549147][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.549150][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.549161][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.549172][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.549183][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   29.549187][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.549189][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.549193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.549196][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.549199][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.549202][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.549205][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.549217][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.549220][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.549224][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.549228][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.549231][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.549233][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.549237][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.549239][    C3]  handle_softirqs (kernel/softirq.c:645)
[   29.549242][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.549245][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.549248][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.549250][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   29.549252][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.549256][    C3]  </IRQ>
[   29.549257][    C3]  <TASK>
[   29.549258][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.549260][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.549264][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.549267][    C3] 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
[   29.549270][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   29.549274][    C3] RAX: 00000000001c2339 RBX: ff11000001c88040 RCX: ffffffff934f0307
[   29.549276][    C3] RDX: ff11000001c88040 RSI: ffffffff96238af6 RDI: ffffffff95c8d8e0
[   29.549277][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.549279][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   29.549280][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   29.549282][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.549287][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.549290][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   29.549292][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.549295][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   29.549297][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.549301][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.549304][    C3]  do_idle (kernel/sched/idle.c:355)
[   29.549306][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.549308][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   29.549311][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   29.549314][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.639939][    C3]
| [   29.640035][    C3]
| [   29.640035][    C3] stack backtrace:
| [   29.640278][    C3] Tainted: [W]=WARN
[   29.640280][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.640281][    C3] Call Trace:
[   29.640283][    C3]  <IRQ>
[   29.640285][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.640290][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   29.640294][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.640299][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.640301][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.640304][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.640307][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.640310][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.640324][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.640328][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.640331][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.640342][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.640345][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.640356][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.640368][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.640379][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   29.640383][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.640385][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.640390][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.640393][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.640396][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.640399][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.640402][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.640414][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.640416][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.640420][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.640424][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.640427][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.640430][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.640433][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.640435][    C3]  handle_softirqs (kernel/softirq.c:645)
[   29.640438][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.640441][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.640444][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.640446][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   29.640448][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.640451][    C3]  </IRQ>
[   29.640452][    C3]  <TASK>
[   29.640453][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.640456][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.640458][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.640461][    C3] 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
[   29.640464][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   29.640468][    C3] RAX: 00000000001c2339 RBX: ff11000001c88040 RCX: ffffffff934f0307
[   29.640470][    C3] RDX: ff11000001c88040 RSI: ffffffff96238af6 RDI: ffffffff95c8d8e0
[   29.640471][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.640472][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   29.640474][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   29.640477][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.640480][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.640482][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   29.640485][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.640487][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   29.640489][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.640492][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.640495][    C3]  do_idle (kernel/sched/idle.c:355)
[   29.640498][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.640500][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   29.640502][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   29.640505][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   38.560883][  T564] softirqs last disabled at (0): 0x0
| [   38.560885][  T564] Preemption disabled at:
| [   38.560886][  T564] 0x0
| [   38.560895][  T564] Tainted: [W]=WARN
[   38.560896][  T564] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.560898][  T564] Call Trace:
[   38.560900][  T564]  <TASK>
[   38.560901][  T564]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.560907][  T564]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.560911][  T564]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.560915][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560919][  T564]  __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))
[   38.560922][  T564]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.560925][  T564]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.560929][  T564]  ? 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)
[   38.560930][  T564]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.560932][  T564]  put_chars (drivers/char/virtio_console.c:1176)
[   38.560934][  T564]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   38.560936][  T564]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.560938][  T564]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   38.560941][  T564]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.560945][  T564]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.560946][  T564]  ? 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)
[   38.560948][  T564]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.560949][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560951][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560952][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.560955][  T564]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.560957][  T564]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.560959][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560961][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560962][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560964][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.560966][  T564]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   38.560968][  T564]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.560970][  T564]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.560972][  T564]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.560974][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.560976][  T564]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.560977][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.560979][  T564]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.560980][  T564]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   38.560981][  T564]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   38.560983][  T564]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.560985][  T564]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.560987][  T564]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.560992][  T564]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.560994][  T564]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[   38.560998][  T564]  ? debug_object_activate (lib/debugobjects.c:884)
[   38.561000][  T564]  _printk (kernel/printk/printk.c:2504)
[   38.561003][  T564]  ? snapshot_read.cold (user.c:?)
[   38.561005][  T564]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.561007][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561009][  T564]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.561012][  T564] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   38.561025][  T564] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   38.561033][  T564] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   38.561039][  T564] br_dev_stop (net/bridge/br_device.c:193) bridge
[   38.561047][  T564]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   38.561051][  T564]  __dev_close_many (net/core/dev.c:1798)
[   38.561054][  T564]  ? netif_open (net/core/dev.c:1755)
[   38.561056][  T564]  ? 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)
[   38.561058][  T564]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   38.561060][  T564]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   38.561062][  T564]  ? __kernel_text_address (kernel/extable.c:79)
[   38.561065][  T564]  ? write_profile (profile.c:?)
[   38.561067][  T564]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   38.561070][  T564]  netif_change_flags (net/core/dev.c:9877)
[   38.561072][  T564]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   38.561074][  T564]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.561075][  T564]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.561077][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561078][  T564]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   38.561081][  T564]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.561084][  T564]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.561086][  T564]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.561087][  T564]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.561089][  T564]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   38.561090][  T564]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   38.561091][  T564]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.561092][  T564]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.561095][  T564]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.561096][  T564]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.561097][  T564]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   38.561100][  T564]  ? ___sys_sendmsg (net/socket.c:2767)
[   38.561101][  T564]  ? __sys_sendmsg (net/socket.c:2799)
[   38.561103][  T564]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.561105][  T564]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.561108][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561110][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.561111][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561113][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561114][  T564]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.561117][  T564]  ? __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)
[   38.561120][  T564]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.561121][  T564]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.561122][  T564]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.561125][  T564]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.561127][  T564]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.561129][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561130][  T564]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.561131][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.561133][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561135][  T564]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   38.561138][  T564]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   38.561140][  T564]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   38.561141][  T564]  ? __kernel_text_address (kernel/extable.c:79)
[   38.561142][  T564]  ? write_profile (profile.c:?)
[   38.561143][  T564]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   38.561145][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561146][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561148][  T564]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   38.561151][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.561153][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561154][  T564]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.561156][  T564]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.561157][  T564]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.561159][  T564]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   38.561160][  T564]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   38.561162][  T564]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.561164][  T564]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.561165][  T564]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.561167][  T564]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.561168][  T564]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   38.561170][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561172][  T564]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.561174][  T564]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.561176][  T564]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.561178][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561179][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561181][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.561183][  T564]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.561185][  T564]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.561187][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561188][  T564]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.561190][  T564]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   38.561192][  T564]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.561194][  T564]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   38.561195][  T564]  ? move_addr_to_kernel (net/socket.c:258)
[   38.561197][  T564]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   38.561199][  T564]  ___sys_sendmsg (net/socket.c:2767)
[   38.561201][  T564]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.561206][  T564]  __sys_sendmsg (net/socket.c:2799)
[   38.561207][  T564]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.561210][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.561212][  T564]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.561213][  T564]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.561216][  T564]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.561217][  T564] RIP: 0033:0x7f104bf6754e
[   38.561219][  T564] 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
[   38.561221][  T564] RSP: 002b:00007ffecef78950 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.561224][  T564] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f104bf6754e
[   38.561226][  T564] RDX: 0000000000000000 RSI: 00007ffecef78a00 RDI: 0000000000000005
[   38.561227][  T564] RBP: 00007ffecef78960 R08: 0000000000000000 R09: 0000000000000000
[   38.561227][  T564] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b583


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