======================================
| [    9.924669][  T187] softirqs last disabled at (44921): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.924671][  T187] Preemption disabled at:
| [    9.924671][  T187] 0x0
| [    9.924682][  T187] Tainted: [W]=WARN
[    9.924683][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.924684][  T187] Call Trace:
[    9.924686][  T187]  <TASK>
[    9.924687][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.924694][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.924699][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.924703][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.924708][  T187]  __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))
[    9.924711][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.924717][  T187]  ? 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)
[    9.924720][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.924723][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[    9.924726][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.924727][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.924733][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.924738][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.924745][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.924747][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.924749][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.924753][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.924758][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.924759][  T187]  ? 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))
[    9.924763][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.924765][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.924769][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.924774][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.924776][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.924781][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.924784][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.924786][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.924788][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.924792][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.924794][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.924798][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.924802][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.924805][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.924809][  T187]  _printk (kernel/printk/printk.c:2504)
[    9.924813][  T187]  ? snapshot_read.cold (user.c:?)
[    9.924816][  T187]  ? 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)
[    9.924818][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.924822][  T187]  ? 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)
[    9.924825][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.924829][  T187]  ? exit_notify (kernel/exit.c:780)
[    9.924831][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.924834][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.924838][  T187]  do_group_exit (kernel/exit.c:1151)
[    9.924841][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.924843][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.924845][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.924849][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.924852][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.924854][  T187] RIP: 0033:0x7f784ae3e1b8
[    9.924856][  T187] Code: Unable to access opcode bytes at 0x7f784ae3e18e.

Code starting with the faulting instruction
===========================================
[    9.924858][  T187] RSP: 002b:00007ffce1a47af8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.924860][  T187] RAX: ffffffffffffffda RBX: 00007f784af6ef88 RCX: 00007f784ae3e1b8
[    9.924861][  T187] RDX: 00007f784ab88fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.924862][  T187] RBP: 00007ffce1a47b50 R08: 0000000000000000 R09: 0000000000008010
[    9.924863][  T187] R10: 00007ffce1a47910 R11: 0000000000000246 R12: 0000000000000001
[    9.924864][  T187] R13: 0000000000000000 R14: 00007f784af6d680 R15: 00007f784af6efa0
| [   11.107704][  T249] softirqs last disabled at (26511): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.107707][  T249] Preemption disabled at:
| [   11.107707][  T249] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.107717][  T249] Tainted: [W]=WARN
[   11.107718][  T249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.107720][  T249] Call Trace:
[   11.107722][  T249]  <TASK>
[   11.107723][  T249]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.107729][  T249]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.107732][  T249]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.107736][  T249]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.107741][  T249]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.107746][  T249]  __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))
[   11.107749][  T249]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.107755][  T249]  ? 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)
[   11.107757][  T249]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.107761][  T249]  put_chars (drivers/char/virtio_console.c:1176)
[   11.107763][  T249]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   11.107765][  T249]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.107768][  T249]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.107771][  T249]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.107776][  T249]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.107778][  T249]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.107780][  T249]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.107785][  T249]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.107786][  T249]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.107789][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.107793][  T249]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.107797][  T249]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.107801][  T249]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.107802][  T249]  ? 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))
[   11.107806][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.107808][  T249]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.107812][  T249]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.107816][  T249]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.107818][  T249]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.107824][  T249]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.107827][  T249]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.107829][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.107831][  T249]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.107835][  T249]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.107837][  T249]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.107840][  T249]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.107845][  T249]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.107850][  T249]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   11.107853][  T249]  _printk (kernel/printk/printk.c:2504)
[   11.107857][  T249]  ? snapshot_read.cold (user.c:?)
[   11.107864][  T249]  ? 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)
[   11.107867][  T249] gact_init_module (net/sched/act_gact.c:180) act_gact
[   11.107869][  T249]  do_one_initcall (init/main.c:1357)
[   11.107872][  T249]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.107877][  T249]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.107880][  T249]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.107884][  T249]  do_init_module (kernel/module/main.c:3117)
[   11.107888][  T249]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.107893][  T249]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.107896][  T249]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.107900][  T249]  load_module (kernel/module/main.c:3593)
[   11.107908][  T249]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.107912][  T249]  ? __ia32_sys_fsconfig (??:?)
[   11.107915][  T249]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.107919][  T249]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.107921][  T249]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.107924][  T249]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.107928][  T249]  init_module_from_file (kernel/module/main.c:3790)
[   11.107931][  T249]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.107940][  T249]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.107943][  T249]  ? 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)
[   11.107946][  T249]  idempotent_init_module (kernel/module/main.c:3802)
[   11.107950][  T249]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.107957][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.107959][  T249]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.107965][  T249]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.107967][  T249]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.107971][  T249]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.107973][  T249]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.107976][  T249]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.107978][  T249] RIP: 0033:0x7f289ab3b37d
[   11.107982][  T249] 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
[   11.107984][  T249] RSP: 002b:00007ffce7572818 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.107987][  T249] RAX: ffffffffffffffda RBX: 00005646576ea810 RCX: 00007f289ab3b37d
[   11.107988][  T249] RDX: 0000000000000000 RSI: 000056463b395ffd RDI: 0000000000000000
[   11.107989][  T249] RBP: 00007ffce75728b0 R08: 0000000000000000 R09: 0000000000000000
[   11.107990][  T249] R10: 0000000000000000 R11: 0000000000000246 R12: 000056463b395ffd
[   11.107991][  T249] R13: 00005646576ea960 R14: 0000000000040000 R15: 0000000000000000
| [   17.607156][  T354] softirqs last disabled at (14131): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.607158][  T354] Preemption disabled at:
| [   17.607159][  T354] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.607169][  T354] Tainted: [W]=WARN
[   17.607170][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.607172][  T354] Call Trace:
[   17.607174][  T354]  <TASK>
[   17.607176][  T354]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.607182][  T354]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.607185][  T354]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.607189][  T354]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.607193][  T354]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.607198][  T354]  __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))
[   17.607201][  T354]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.607206][  T354]  ? 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)
[   17.607209][  T354]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.607212][  T354]  put_chars (drivers/char/virtio_console.c:1176)
[   17.607214][  T354]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   17.607216][  T354]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.607219][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.607224][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.607226][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.607230][  T354]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.607233][  T354]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.607236][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607238][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607245][  T354]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.607248][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.607251][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607254][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.607258][  T354]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.607262][  T354]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.607264][  T354]  ? 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))
[   17.607267][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607269][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.607273][  T354]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.607278][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.607280][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607285][  T354]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.607288][  T354]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.607289][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607292][  T354]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.607296][  T354]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.607297][  T354]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.607301][  T354]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.607305][  T354]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.607307][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.607310][  T354]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.607314][  T354]  _printk (kernel/printk/printk.c:2504)
[   17.607318][  T354]  ? snapshot_read.cold (user.c:?)
[   17.607322][  T354]  ? br_multicast_flood (??:?) bridge
[   17.607335][  T354]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.607336][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.607338][  T354]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.607342][  T354] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.607353][  T354] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   17.607362][  T354] new_nbp (net/bridge/br_if.c:449) bridge
[   17.607372][  T354] br_add_if (net/bridge/br_if.c:592) bridge
[   17.607379][  T354]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   17.607383][  T354]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   17.607386][  T354]  ? __kernel_text_address (kernel/extable.c:79)
[   17.607390][  T354]  do_set_master (net/core/rtnetlink.c:3071)
[   17.607395][  T354]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.607398][  T354]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.607401][  T354]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.607403][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.607405][  T354]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.607409][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.607411][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.607413][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.607416][  T354]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.607419][  T354]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.607421][  T354]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.607424][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607425][  T354]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   17.607429][  T354]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.607433][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.607435][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.607438][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607441][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.607442][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607444][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607447][  T354]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.607450][  T354]  ? __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)
[   17.607454][  T354]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.607456][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.607459][  T354]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.607461][  T354]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.607466][  T354]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.607471][  T354]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.607477][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.607479][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607483][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.607485][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.607487][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.607489][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.607493][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.607495][  T354]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.607498][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.607499][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607504][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.607506][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.607509][  T354]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.607511][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.607514][  T354]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.607520][  T354]  ? 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))
[   17.607522][  T354]  ? 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))
[   17.607526][  T354]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.607530][  T354]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.607533][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.607537][  T354]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.607541][  T354]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.607545][  T354]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.607550][  T354]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.607552][  T354]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.607555][  T354]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.607557][  T354]  ? move_addr_to_kernel (net/socket.c:258)
[   17.607564][  T354]  ___sys_sendmsg (net/socket.c:2767)
[   17.607567][  T354]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.607583][  T354]  __sys_sendmsg (net/socket.c:2799)
[   17.607586][  T354]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.607592][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.607596][  T354]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.607598][  T354]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.607601][  T354]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.607604][  T354] RIP: 0033:0x7f5bd645954e
[   17.607607][  T354] 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
[   17.607609][  T354] RSP: 002b:00007ffe53964630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.607612][  T354] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5bd645954e
[   17.607614][  T354] RDX: 0000000000000000 RSI: 00007ffe539646e0 RDI: 0000000000000005
[   17.607615][  T354] RBP: 00007ffe53964640 R08: 0000000000000000 R09: 0000000000000000
[   17.607615][  T354] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9153c3
[   17.607616][  T354] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe53964da0
| [   27.010120][    C0] softirqs last disabled at (1248047): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.010121][    C0] Preemption disabled at:
| [   27.010122][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.010131][    C0] Tainted: [W]=WARN
[   27.010132][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.010134][    C0] Call Trace:
[   27.010135][    C0]  <IRQ>
[   27.010137][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.010142][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.010144][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.010148][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.010151][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.010154][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010158][    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))
[   27.010161][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.010164][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.010167][    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)
[   27.010169][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.010177][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.010180][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.010181][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.010185][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.010188][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.010189][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010191][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.010194][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.010196][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.010198][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010200][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010202][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.010204][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.010206][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.010208][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.010211][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.010213][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.010214][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.010216][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010218][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.010219][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.010221][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.010223][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.010225][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.010227][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.010229][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010231][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.010233][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.010238][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.010241][    C0]  ? snapshot_read.cold (user.c:?)
[   27.010242][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.010247][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.010249][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.010250][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.010253][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.010256][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.010258][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.010260][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.010262][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.010264][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.010276][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010278][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.010280][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.010287][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.010289][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.010295][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.010301][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.010308][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.010311][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.010313][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.010317][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.010319][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.010321][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010323][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.010325][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.010332][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.010334][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.010337][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.010339][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.010341][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.010343][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.010345][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010347][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.010349][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.010351][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.010353][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.010354][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.010356][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.010359][    C0]  </IRQ>
[   27.010359][    C0]  <TASK>
[   27.010360][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.010362][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.010364][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.010367][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   27.010368][    C0] RSP: 0018:ffffffffa8a07cf8 EFLAGS: 00000296
[   27.010372][    C0] RAX: 0000000000130b2d RBX: ffffffffa8a1c600 RCX: ffffffffa5af0307
[   27.010373][    C0] RDX: ffffffffa8a1c600 RSI: ffffffffa8838b01 RDI: ffffffffa828d8e0
[   27.010374][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.010375][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5140fa2
[   27.010375][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.010378][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.010383][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.010385][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.010387][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.010389][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.010390][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.010392][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.010394][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.010396][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.010398][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.010400][    C0]  rest_init (init/main.c:727)
[   27.010401][    C0]  ? __cpuidle_text_end (??:?)
[   27.010404][    C0]  ? rest_init (init/main.c:727)
[   27.010406][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.010410][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.010413][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.010415][    C0]  start_kernel (init/main.c:1185)
[   27.010417][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.010419][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.010421][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.081741][    C0]
| [   27.081874][    C0]
| [   27.081874][    C0] stack backtrace:
| [   27.082079][    C0] Tainted: [W]=WARN
[   27.082080][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.082081][    C0] Call Trace:
[   27.082082][    C0]  <IRQ>
[   27.082083][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.082087][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.082090][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.082093][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.082095][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.082096][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.082099][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.082101][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.082108][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.082110][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.082112][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.082119][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.082120][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.082127][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.082133][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.082140][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.082143][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.082144][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.082147][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.082149][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.082151][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.082153][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.082155][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.082162][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.082164][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.082167][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.082169][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.082177][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.082179][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.082180][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.082182][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.082184][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.082186][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.082188][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.082189][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.082191][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.082193][    C0]  </IRQ>
[   27.082193][    C0]  <TASK>
[   27.082194][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.082196][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.082198][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.082200][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 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 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  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 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  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
[   27.082201][    C0] RSP: 0018:ffffffffa8a07cf8 EFLAGS: 00000296
[   27.082203][    C0] RAX: 0000000000130b2d RBX: ffffffffa8a1c600 RCX: ffffffffa5af0307
[   27.082205][    C0] RDX: ffffffffa8a1c600 RSI: ffffffffa8838b01 RDI: ffffffffa828d8e0
[   27.082206][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.082207][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5140fa2
[   27.082208][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.082209][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.082212][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.082213][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.082215][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.082217][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.082218][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.082220][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.082223][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.082225][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.082226][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.082228][    C0]  rest_init (init/main.c:727)
[   27.082230][    C0]  ? __cpuidle_text_end (??:?)
[   27.082233][    C0]  ? rest_init (init/main.c:727)
[   27.082234][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.082238][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.082240][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.082243][    C0]  start_kernel (init/main.c:1185)
[   27.082245][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.082247][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.082249][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   34.723703][ T2391] softirqs last disabled at (0): 0x0
| [   34.723704][ T2391] Preemption disabled at:
| [   34.723705][ T2391] vprintk_emit (kernel/printk/printk.c:2471)
| [   34.723716][ T2391] Tainted: [W]=WARN
[   34.723717][ T2391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.723720][ T2391] Call Trace:
[   34.723721][ T2391]  <TASK>
[   34.723722][ T2391]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   34.723728][ T2391]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   34.723730][ T2391]  __might_resched.cold (kernel/sched/core.c:9234)
[   34.723734][ T2391]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   34.723737][ T2391]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   34.723740][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723744][ T2391]  __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))
[   34.723747][ T2391]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   34.723750][ T2391]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.723754][ T2391]  ? 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)
[   34.723756][ T2391]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.723757][ T2391]  put_chars (drivers/char/virtio_console.c:1176)
[   34.723760][ T2391]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   34.723761][ T2391]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   34.723764][ T2391]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   34.723767][ T2391]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   34.723768][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723770][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.723772][ T2391]  console_emit_next_record (kernel/printk/printk.c:3183)
[   34.723775][ T2391]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   34.723777][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723778][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723780][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723782][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.723784][ T2391]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   34.723785][ T2391]  console_flush_one_record (kernel/printk/printk.c:3268)
[   34.723788][ T2391]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   34.723791][ T2391]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   34.723792][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.723794][ T2391]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   34.723796][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723797][ T2391]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.723799][ T2391]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   34.723800][ T2391]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   34.723802][ T2391]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   34.723804][ T2391]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   34.723806][ T2391]  vprintk_emit (kernel/printk/printk.c:2479)
[   34.723809][ T2391]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   34.723811][ T2391]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.723814][ T2391]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.723816][ T2391]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.723818][ T2391]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   34.723820][ T2391]  ? ___sys_sendmsg (net/socket.c:2767)
[   34.723822][ T2391]  ? __sys_sendmsg (net/socket.c:2799)
[   34.723823][ T2391]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.723827][ T2391]  _printk (kernel/printk/printk.c:2504)
[   34.723830][ T2391]  ? snapshot_read.cold (user.c:?)
[   34.723832][ T2391]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   34.723835][ T2391]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   34.723837][ T2391]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   34.723839][ T2391]  ? netdev_notice (net/core/dev.c:13194)
[   34.723841][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723843][ T2391]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   34.723844][ T2391]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   34.723847][ T2391]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   34.723848][ T2391]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   34.723851][ T2391]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   34.723854][ T2391]  dev_set_allmulti (net/core/dev_api.c:315)
[   34.723857][ T2391] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   34.723869][ T2391]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   34.723873][ T2391]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   34.723876][ T2391] br_del_if (net/bridge/br_if.c:732) bridge
[   34.723883][ T2391]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   34.723885][ T2391]  do_set_master (net/core/rtnetlink.c:3055)
[   34.723888][ T2391]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   34.723890][ T2391]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   34.723893][ T2391]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   34.723894][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723896][ T2391]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   34.723900][ T2391]  ? kasan_save_stack (mm/kasan/common.c:58)
[   34.723902][ T2391]  ? kasan_save_stack (mm/kasan/common.c:57)
[   34.723904][ T2391]  ? kasan_save_track (mm/kasan/common.c:78)
[   34.723905][ T2391]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   34.723907][ T2391]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   34.723908][ T2391]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   34.723910][ T2391]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.723911][ T2391]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   34.723912][ T2391]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.723913][ T2391]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.723915][ T2391]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   34.723916][ T2391]  ? ___sys_sendmsg (net/socket.c:2767)
[   34.723917][ T2391]  ? __sys_sendmsg (net/socket.c:2799)
[   34.723919][ T2391]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.723920][ T2391]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.723922][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723924][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.723926][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723927][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723929][ T2391]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   34.723931][ T2391]  ? __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)
[   34.723934][ T2391]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   34.723935][ T2391]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   34.723937][ T2391]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   34.723938][ T2391]  ? nla_get_range_signed (lib/nlattr.c:270)
[   34.723940][ T2391]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   34.723942][ T2391]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   34.723944][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723946][ T2391]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.723947][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.723949][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723951][ T2391]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   34.723952][ T2391]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   34.723954][ T2391]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   34.723956][ T2391]  ? __kernel_text_address (kernel/extable.c:79)
[   34.723957][ T2391]  ? write_profile (profile.c:?)
[   34.723959][ T2391]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   34.723961][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723963][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723965][ T2391]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   34.723968][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.723969][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723971][ T2391]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.723973][ T2391]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.723974][ T2391]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.723976][ T2391]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   34.723977][ T2391]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   34.723980][ T2391]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   34.723981][ T2391]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.723982][ T2391]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.723984][ T2391]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   34.723985][ T2391]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   34.723988][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723990][ T2391]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.723992][ T2391]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.723994][ T2391]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   34.723995][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723997][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.723999][ T2391]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.724001][ T2391]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.724003][ T2391]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   34.724005][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.724006][ T2391]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.724011][ T2391]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   34.724013][ T2391]  ? copy_msghdr_from_user (net/socket.c:2650)
[   34.724014][ T2391]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   34.724016][ T2391]  ? move_addr_to_kernel (net/socket.c:258)
[   34.724017][ T2391]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   34.724020][ T2391]  ___sys_sendmsg (net/socket.c:2767)
[   34.724022][ T2391]  ? copy_msghdr_from_user (net/socket.c:2619)
[   34.724027][ T2391]  __sys_sendmsg (net/socket.c:2799)
[   34.724029][ T2391]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   34.724031][ T2391]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.724034][ T2391]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.724035][ T2391]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   34.724037][ T2391]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.724039][ T2391] RIP: 0033:0x7f282824754e
[   34.724041][ T2391] 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
[   34.724043][ T2391] RSP: 002b:00007ffe6c32c280 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   34.724047][ T2391] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f282824754e
[   34.724048][ T2391] RDX: 0000000000000000 RSI: 00007ffe6c32c330 RDI: 0000000000000005
[   34.724049][ T2391] RBP: 00007ffe6c32c290 R08: 0000000000000000 R09: 0000000000000000
[   34.724050][ T2391] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9153d4
[   34.724050][ T2391] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6c32c9f0
| [   49.679458][ T4446] softirqs last disabled at (0): 0x0
| [   49.679460][ T4446] Preemption disabled at:
| [   49.679461][ T4446] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.679473][ T4446] Tainted: [W]=WARN
[   49.679474][ T4446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.679475][ T4446] Call Trace:
[   49.679477][ T4446]  <TASK>
[   49.679478][ T4446]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.679484][ T4446]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.679486][ T4446]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.679490][ T4446]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.679493][ T4446]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   49.679497][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679500][ T4446]  __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))
[   49.679504][ T4446]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   49.679506][ T4446]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.679511][ T4446]  ? 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)
[   49.679512][ T4446]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.679514][ T4446]  put_chars (drivers/char/virtio_console.c:1176)
[   49.679516][ T4446]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.679518][ T4446]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   49.679521][ T4446]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.679524][ T4446]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.679525][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679527][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679529][ T4446]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.679532][ T4446]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.679534][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679536][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679538][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679540][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679541][ T4446]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   49.679543][ T4446]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.679546][ T4446]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.679548][ T4446]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.679550][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679552][ T4446]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.679554][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679555][ T4446]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   49.679557][ T4446]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   49.679558][ T4446]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   49.679560][ T4446]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.679562][ T4446]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.679565][ T4446]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.679567][ T4446]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.679569][ T4446]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   49.679572][ T4446]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   49.679575][ T4446]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   49.679577][ T4446]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   49.679579][ T4446]  ? ___sys_sendmsg (net/socket.c:2767)
[   49.679581][ T4446]  ? __sys_sendmsg (net/socket.c:2799)
[   49.679583][ T4446]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   49.679586][ T4446]  _printk (kernel/printk/printk.c:2504)
[   49.679589][ T4446]  ? snapshot_read.cold (user.c:?)
[   49.679592][ T4446]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   49.679595][ T4446]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   49.679597][ T4446]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   49.679599][ T4446]  ? netdev_notice (net/core/dev.c:13194)
[   49.679601][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679602][ T4446]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   49.679604][ T4446]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   49.679607][ T4446]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   49.679608][ T4446]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   49.679611][ T4446]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   49.679614][ T4446]  dev_set_allmulti (net/core/dev_api.c:315)
[   49.679617][ T4446] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   49.679630][ T4446]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   49.679634][ T4446]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   49.679637][ T4446] br_del_if (net/bridge/br_if.c:732) bridge
[   49.679645][ T4446]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   49.679647][ T4446]  do_set_master (net/core/rtnetlink.c:3055)
[   49.679650][ T4446]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   49.679652][ T4446]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   49.679655][ T4446]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   49.679656][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679658][ T4446]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   49.679662][ T4446]  ? kasan_save_stack (mm/kasan/common.c:58)
[   49.679664][ T4446]  ? kasan_save_stack (mm/kasan/common.c:57)
[   49.679666][ T4446]  ? kasan_save_track (mm/kasan/common.c:78)
[   49.679667][ T4446]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   49.679669][ T4446]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   49.679671][ T4446]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   49.679672][ T4446]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   49.679673][ T4446]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   49.679674][ T4446]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   49.679675][ T4446]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   49.679677][ T4446]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   49.679678][ T4446]  ? ___sys_sendmsg (net/socket.c:2767)
[   49.679679][ T4446]  ? __sys_sendmsg (net/socket.c:2799)
[   49.679681][ T4446]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   49.679682][ T4446]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   49.679685][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679687][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679688][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679690][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679691][ T4446]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   49.679694][ T4446]  ? __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)
[   49.679696][ T4446]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   49.679697][ T4446]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.679699][ T4446]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   49.679701][ T4446]  ? nla_get_range_signed (lib/nlattr.c:270)
[   49.679703][ T4446]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   49.679705][ T4446]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   49.679707][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679709][ T4446]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.679710][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679712][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679714][ T4446]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   49.679716][ T4446]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   49.679718][ T4446]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   49.679719][ T4446]  ? __kernel_text_address (kernel/extable.c:79)
[   49.679721][ T4446]  ? write_profile (profile.c:?)
[   49.679722][ T4446]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   49.679724][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679726][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679728][ T4446]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   49.679732][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679733][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679735][ T4446]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.679736][ T4446]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   49.679738][ T4446]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.679740][ T4446]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   49.679741][ T4446]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   49.679744][ T4446]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   49.679745][ T4446]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.679747][ T4446]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   49.679748][ T4446]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   49.679750][ T4446]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   49.679752][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679754][ T4446]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   49.679756][ T4446]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   49.679758][ T4446]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   49.679760][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679761][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679763][ T4446]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.679765][ T4446]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   49.679767][ T4446]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   49.679769][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679771][ T4446]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   49.679773][ T4446]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   49.679775][ T4446]  ? copy_msghdr_from_user (net/socket.c:2650)
[   49.679776][ T4446]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   49.679778][ T4446]  ? move_addr_to_kernel (net/socket.c:258)
[   49.679780][ T4446]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   49.679782][ T4446]  ___sys_sendmsg (net/socket.c:2767)
[   49.679784][ T4446]  ? copy_msghdr_from_user (net/socket.c:2619)
[   49.679789][ T4446]  __sys_sendmsg (net/socket.c:2799)
[   49.679791][ T4446]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   49.679794][ T4446]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.679796][ T4446]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   49.679797][ T4446]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   49.679800][ T4446]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   49.679802][ T4446] RIP: 0033:0x7ff49779554e
[   49.679804][ T4446] 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
[   49.679806][ T4446] RSP: 002b:00007fff2076dbd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   49.679810][ T4446] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff49779554e
[   49.679811][ T4446] RDX: 0000000000000000 RSI: 00007fff2076dc80 RDI: 0000000000000005
[   49.679812][ T4446] RBP: 00007fff2076dbe0 R08: 0000000000000000 R09: 0000000000000000
[   49.679813][ T4446] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9153e3
[   49.679814][ T4446] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff2076e340
| [   64.554379][ T6511] softirqs last disabled at (0): 0x0
| [   64.554380][ T6511] Preemption disabled at:
| [   64.554381][ T6511] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.554393][ T6511] Tainted: [W]=WARN
[   64.554394][ T6511] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.554395][ T6511] Call Trace:
[   64.554397][ T6511]  <TASK>
[   64.554398][ T6511]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.554404][ T6511]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.554406][ T6511]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.554410][ T6511]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.554413][ T6511]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   64.554416][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554420][ T6511]  __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))
[   64.554423][ T6511]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   64.554426][ T6511]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.554430][ T6511]  ? 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)
[   64.554431][ T6511]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.554433][ T6511]  put_chars (drivers/char/virtio_console.c:1176)
[   64.554435][ T6511]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.554437][ T6511]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   64.554439][ T6511]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.554443][ T6511]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.554444][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554446][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554448][ T6511]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.554451][ T6511]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.554453][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554455][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554456][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554458][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554467][ T6511]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   64.554468][ T6511]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.554471][ T6511]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.554474][ T6511]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.554475][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554477][ T6511]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.554479][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554480][ T6511]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   64.554482][ T6511]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   64.554483][ T6511]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   64.554485][ T6511]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.554487][ T6511]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.554489][ T6511]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.554491][ T6511]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.554493][ T6511]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.554496][ T6511]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.554499][ T6511]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.554500][ T6511]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   64.554503][ T6511]  ? ___sys_sendmsg (net/socket.c:2767)
[   64.554504][ T6511]  ? __sys_sendmsg (net/socket.c:2799)
[   64.554506][ T6511]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.554509][ T6511]  _printk (kernel/printk/printk.c:2504)
[   64.554512][ T6511]  ? snapshot_read.cold (user.c:?)
[   64.554515][ T6511]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.554518][ T6511]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.554519][ T6511]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.554521][ T6511]  ? netdev_notice (net/core/dev.c:13194)
[   64.554523][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554525][ T6511]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   64.554526][ T6511]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   64.554529][ T6511]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   64.554530][ T6511]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   64.554533][ T6511]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   64.554536][ T6511]  dev_set_allmulti (net/core/dev_api.c:315)
[   64.554539][ T6511] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   64.554552][ T6511]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   64.554555][ T6511]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   64.554558][ T6511] br_del_if (net/bridge/br_if.c:732) bridge
[   64.554566][ T6511]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   64.554568][ T6511]  do_set_master (net/core/rtnetlink.c:3055)
[   64.554571][ T6511]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   64.554573][ T6511]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.554575][ T6511]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.554577][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554578][ T6511]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   64.554582][ T6511]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.554585][ T6511]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.554586][ T6511]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.554588][ T6511]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.554589][ T6511]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   64.554591][ T6511]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   64.554592][ T6511]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.554593][ T6511]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.554595][ T6511]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.554596][ T6511]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.554597][ T6511]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   64.554598][ T6511]  ? ___sys_sendmsg (net/socket.c:2767)
[   64.554600][ T6511]  ? __sys_sendmsg (net/socket.c:2799)
[   64.554601][ T6511]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.554602][ T6511]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.554605][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554607][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554608][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554610][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554611][ T6511]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.554613][ T6511]  ? __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)
[   64.554616][ T6511]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.554617][ T6511]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.554619][ T6511]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.554620][ T6511]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.554622][ T6511]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.554624][ T6511]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.554626][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554628][ T6511]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.554629][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554631][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554633][ T6511]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   64.554634][ T6511]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   64.554636][ T6511]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   64.554638][ T6511]  ? __kernel_text_address (kernel/extable.c:79)
[   64.554639][ T6511]  ? write_profile (profile.c:?)
[   64.554640][ T6511]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   64.554642][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554644][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554646][ T6511]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   64.554649][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554651][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554652][ T6511]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.554654][ T6511]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.554655][ T6511]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.554657][ T6511]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   64.554658][ T6511]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   64.554661][ T6511]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.554662][ T6511]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.554663][ T6511]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   64.554665][ T6511]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.554666][ T6511]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   64.554669][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554671][ T6511]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   64.554673][ T6511]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.554675][ T6511]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.554676][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554678][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554680][ T6511]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.554681][ T6511]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.554683][ T6511]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.554685][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554687][ T6511]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   64.554689][ T6511]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   64.554691][ T6511]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.554692][ T6511]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   64.554694][ T6511]  ? move_addr_to_kernel (net/socket.c:258)
[   64.554695][ T6511]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   64.554698][ T6511]  ___sys_sendmsg (net/socket.c:2767)
[   64.554700][ T6511]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.554705][ T6511]  __sys_sendmsg (net/socket.c:2799)
[   64.554706][ T6511]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.554709][ T6511]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.554711][ T6511]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.554712][ T6511]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.554715][ T6511]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.554716][ T6511] RIP: 0033:0x7f3ab783a54e
[   64.554718][ T6511] 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
[   64.554720][ T6511] RSP: 002b:00007ffe3eae9900 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.554724][ T6511] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3ab783a54e
[   64.554725][ T6511] RDX: 0000000000000000 RSI: 00007ffe3eae99b0 RDI: 0000000000000005
[   64.554726][ T6511] RBP: 00007ffe3eae9910 R08: 0000000000000000 R09: 0000000000000000
[   64.554727][ T6511] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9153f1
[   64.554728][ T6511] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3eaea070
| [   79.602069][ T8576] softirqs last disabled at (0): 0x0
| [   79.602071][ T8576] Preemption disabled at:
| [   79.602072][ T8576] vprintk_emit (kernel/printk/printk.c:2471)
| [   79.602083][ T8576] Tainted: [W]=WARN
[   79.602084][ T8576] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   79.602086][ T8576] Call Trace:
[   79.602088][ T8576]  <TASK>
[   79.602089][ T8576]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   79.602094][ T8576]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   79.602096][ T8576]  __might_resched.cold (kernel/sched/core.c:9234)
[   79.602100][ T8576]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   79.602103][ T8576]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   79.602106][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602110][ T8576]  __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))
[   79.602113][ T8576]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   79.602116][ T8576]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   79.602120][ T8576]  ? 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)
[   79.602122][ T8576]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   79.602124][ T8576]  put_chars (drivers/char/virtio_console.c:1176)
[   79.602126][ T8576]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   79.602128][ T8576]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   79.602130][ T8576]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   79.602133][ T8576]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   79.602135][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602137][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602139][ T8576]  console_emit_next_record (kernel/printk/printk.c:3183)
[   79.602141][ T8576]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   79.602143][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602145][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602147][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602148][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602150][ T8576]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   79.602152][ T8576]  console_flush_one_record (kernel/printk/printk.c:3268)
[   79.602154][ T8576]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   79.602157][ T8576]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   79.602159][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602160][ T8576]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   79.602162][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602164][ T8576]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   79.602165][ T8576]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   79.602167][ T8576]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   79.602169][ T8576]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   79.602171][ T8576]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   79.602173][ T8576]  vprintk_emit (kernel/printk/printk.c:2479)
[   79.602175][ T8576]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   79.602177][ T8576]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.602181][ T8576]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   79.602183][ T8576]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   79.602185][ T8576]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   79.602188][ T8576]  ? ___sys_sendmsg (net/socket.c:2767)
[   79.602189][ T8576]  ? __sys_sendmsg (net/socket.c:2799)
[   79.602191][ T8576]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   79.602194][ T8576]  _printk (kernel/printk/printk.c:2504)
[   79.602197][ T8576]  ? snapshot_read.cold (user.c:?)
[   79.602199][ T8576]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   79.602202][ T8576]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   79.602204][ T8576]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   79.602206][ T8576]  ? netdev_notice (net/core/dev.c:13194)
[   79.602208][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602210][ T8576]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   79.602212][ T8576]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   79.602214][ T8576]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   79.602216][ T8576]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   79.602218][ T8576]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   79.602221][ T8576]  dev_set_allmulti (net/core/dev_api.c:315)
[   79.602224][ T8576] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   79.602240][ T8576]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   79.602244][ T8576]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   79.602248][ T8576] br_del_if (net/bridge/br_if.c:732) bridge
[   79.602257][ T8576]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   79.602259][ T8576]  do_set_master (net/core/rtnetlink.c:3055)
[   79.602262][ T8576]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   79.602264][ T8576]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   79.602267][ T8576]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   79.602268][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602270][ T8576]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   79.602274][ T8576]  ? kasan_save_stack (mm/kasan/common.c:58)
[   79.602277][ T8576]  ? kasan_save_stack (mm/kasan/common.c:57)
[   79.602278][ T8576]  ? kasan_save_track (mm/kasan/common.c:78)
[   79.602280][ T8576]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   79.602282][ T8576]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   79.602283][ T8576]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   79.602284][ T8576]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.602285][ T8576]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   79.602287][ T8576]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   79.602288][ T8576]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   79.602289][ T8576]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   79.602291][ T8576]  ? ___sys_sendmsg (net/socket.c:2767)
[   79.602292][ T8576]  ? __sys_sendmsg (net/socket.c:2799)
[   79.602294][ T8576]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   79.602295][ T8576]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   79.602297][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602299][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602301][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602302][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602304][ T8576]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   79.602306][ T8576]  ? __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)
[   79.602308][ T8576]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   79.602310][ T8576]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   79.602311][ T8576]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   79.602313][ T8576]  ? nla_get_range_signed (lib/nlattr.c:270)
[   79.602315][ T8576]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   79.602317][ T8576]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   79.602319][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602321][ T8576]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.602322][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602323][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602325][ T8576]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   79.602327][ T8576]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   79.602329][ T8576]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   79.602330][ T8576]  ? __kernel_text_address (kernel/extable.c:79)
[   79.602332][ T8576]  ? write_profile (profile.c:?)
[   79.602333][ T8576]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   79.602336][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602337][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602339][ T8576]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   79.602342][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602344][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602346][ T8576]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.602347][ T8576]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.602349][ T8576]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   79.602350][ T8576]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   79.602352][ T8576]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   79.602354][ T8576]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   79.602355][ T8576]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   79.602357][ T8576]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   79.602358][ T8576]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   79.602360][ T8576]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   79.602362][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602364][ T8576]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   79.602366][ T8576]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   79.602368][ T8576]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   79.602370][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602372][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602373][ T8576]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.602375][ T8576]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   79.602377][ T8576]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   79.602379][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602381][ T8576]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   79.602383][ T8576]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   79.602384][ T8576]  ? copy_msghdr_from_user (net/socket.c:2650)
[   79.602386][ T8576]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   79.602388][ T8576]  ? move_addr_to_kernel (net/socket.c:258)
[   79.602389][ T8576]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   79.602392][ T8576]  ___sys_sendmsg (net/socket.c:2767)
[   79.602394][ T8576]  ? copy_msghdr_from_user (net/socket.c:2619)
[   79.602399][ T8576]  __sys_sendmsg (net/socket.c:2799)
[   79.602401][ T8576]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   79.602403][ T8576]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.602406][ T8576]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   79.602407][ T8576]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   79.602409][ T8576]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   79.602411][ T8576] RIP: 0033:0x7f20e8ded54e
[   79.602413][ T8576] 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
[   79.602415][ T8576] RSP: 002b:00007fffbfda2d40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   79.602418][ T8576] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f20e8ded54e
[   79.602420][ T8576] RDX: 0000000000000000 RSI: 00007fffbfda2df0 RDI: 0000000000000005
[   79.602421][ T8576] RBP: 00007fffbfda2d50 R08: 0000000000000000 R09: 0000000000000000
[   79.602422][ T8576] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915401
[   79.602423][ T8576] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffbfda34b0
| [   94.192799][T10641] softirqs last disabled at (0): 0x0
| [   94.192800][T10641] Preemption disabled at:
| [   94.192801][T10641] vprintk_emit (kernel/printk/printk.c:2471)
| [   94.192813][T10641] Tainted: [W]=WARN
[   94.192814][T10641] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   94.192816][T10641] Call Trace:
[   94.192817][T10641]  <TASK>
[   94.192819][T10641]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   94.192824][T10641]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   94.192826][T10641]  __might_resched.cold (kernel/sched/core.c:9234)
[   94.192830][T10641]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   94.192833][T10641]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   94.192836][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192840][T10641]  __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))
[   94.192843][T10641]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   94.192846][T10641]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   94.192850][T10641]  ? 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)
[   94.192851][T10641]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   94.192853][T10641]  put_chars (drivers/char/virtio_console.c:1176)
[   94.192855][T10641]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   94.192857][T10641]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   94.192860][T10641]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   94.192863][T10641]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   94.192864][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192866][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.192868][T10641]  console_emit_next_record (kernel/printk/printk.c:3183)
[   94.192871][T10641]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   94.192873][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192875][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192876][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192878][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.192880][T10641]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   94.192882][T10641]  console_flush_one_record (kernel/printk/printk.c:3268)
[   94.192884][T10641]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   94.192887][T10641]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   94.192889][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.192890][T10641]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   94.192892][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192893][T10641]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   94.192895][T10641]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   94.192896][T10641]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   94.192898][T10641]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   94.192901][T10641]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   94.192903][T10641]  vprintk_emit (kernel/printk/printk.c:2479)
[   94.192905][T10641]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   94.192907][T10641]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   94.192910][T10641]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   94.192913][T10641]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   94.192914][T10641]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   94.192917][T10641]  ? ___sys_sendmsg (net/socket.c:2767)
[   94.192918][T10641]  ? __sys_sendmsg (net/socket.c:2799)
[   94.192920][T10641]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   94.192923][T10641]  _printk (kernel/printk/printk.c:2504)
[   94.192926][T10641]  ? snapshot_read.cold (user.c:?)
[   94.192928][T10641]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   94.192931][T10641]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   94.192933][T10641]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   94.192935][T10641]  ? netdev_notice (net/core/dev.c:13194)
[   94.192937][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192939][T10641]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   94.192940][T10641]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   94.192943][T10641]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   94.192944][T10641]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   94.192947][T10641]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   94.192949][T10641]  dev_set_allmulti (net/core/dev_api.c:315)
[   94.192952][T10641] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   94.192964][T10641]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   94.192968][T10641]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   94.192971][T10641] br_del_if (net/bridge/br_if.c:732) bridge
[   94.192978][T10641]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   94.192980][T10641]  do_set_master (net/core/rtnetlink.c:3055)
[   94.192983][T10641]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   94.192985][T10641]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   94.192988][T10641]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   94.192989][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.192991][T10641]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   94.192995][T10641]  ? kasan_save_stack (mm/kasan/common.c:58)
[   94.192997][T10641]  ? kasan_save_stack (mm/kasan/common.c:57)
[   94.192999][T10641]  ? kasan_save_track (mm/kasan/common.c:78)
[   94.193000][T10641]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   94.193002][T10641]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   94.193003][T10641]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   94.193005][T10641]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   94.193006][T10641]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   94.193009][T10641]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   94.193011][T10641]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   94.193012][T10641]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   94.193013][T10641]  ? ___sys_sendmsg (net/socket.c:2767)
[   94.193015][T10641]  ? __sys_sendmsg (net/socket.c:2799)
[   94.193016][T10641]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   94.193017][T10641]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   94.193020][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193022][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.193023][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193025][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193027][T10641]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   94.193029][T10641]  ? __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)
[   94.193031][T10641]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   94.193032][T10641]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   94.193034][T10641]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   94.193035][T10641]  ? nla_get_range_signed (lib/nlattr.c:270)
[   94.193038][T10641]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   94.193040][T10641]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   94.193042][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193044][T10641]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   94.193045][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.193046][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193049][T10641]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   94.193050][T10641]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   94.193052][T10641]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   94.193053][T10641]  ? __kernel_text_address (kernel/extable.c:79)
[   94.193055][T10641]  ? write_profile (profile.c:?)
[   94.193056][T10641]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   94.193059][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193061][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193062][T10641]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   94.193066][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.193067][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193069][T10641]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   94.193070][T10641]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   94.193072][T10641]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   94.193073][T10641]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   94.193075][T10641]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   94.193077][T10641]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   94.193079][T10641]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   94.193080][T10641]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   94.193082][T10641]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   94.193083][T10641]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   94.193086][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193087][T10641]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   94.193089][T10641]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   94.193091][T10641]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   94.193093][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193095][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193097][T10641]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   94.193098][T10641]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   94.193100][T10641]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   94.193102][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193104][T10641]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   94.193106][T10641]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   94.193108][T10641]  ? copy_msghdr_from_user (net/socket.c:2650)
[   94.193110][T10641]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   94.193111][T10641]  ? move_addr_to_kernel (net/socket.c:258)
[   94.193113][T10641]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   94.193115][T10641]  ___sys_sendmsg (net/socket.c:2767)
[   94.193117][T10641]  ? copy_msghdr_from_user (net/socket.c:2619)
[   94.193122][T10641]  __sys_sendmsg (net/socket.c:2799)
[   94.193124][T10641]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   94.193127][T10641]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   94.193129][T10641]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   94.193130][T10641]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   94.193133][T10641]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   94.193134][T10641] RIP: 0033:0x7f0ddf15054e
[   94.193136][T10641] 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
[   94.193138][T10641] RSP: 002b:00007ffd7aaeb480 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   94.193142][T10641] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0ddf15054e
[   94.193143][T10641] RDX: 0000000000000000 RSI: 00007ffd7aaeb530 RDI: 0000000000000005
[   94.193144][T10641] RBP: 00007ffd7aaeb490 R08: 0000000000000000 R09: 0000000000000000
[   94.193145][T10641] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91540f
[   94.193146][T10641] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd7aaebbf0
| [  109.138580][T12706] softirqs last disabled at (0): 0x0
| [  109.138583][T12706] Preemption disabled at:
| [  109.138584][T12706] vprintk_emit (kernel/printk/printk.c:2471)
| [  109.138598][T12706] Tainted: [W]=WARN
[  109.138600][T12706] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  109.138602][T12706] Call Trace:
[  109.138604][T12706]  <TASK>
[  109.138606][T12706]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  109.138612][T12706]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  109.138615][T12706]  __might_resched.cold (kernel/sched/core.c:9234)
[  109.138619][T12706]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  109.138623][T12706]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  109.138627][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138632][T12706]  __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))
[  109.138636][T12706]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  109.138639][T12706]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  109.138644][T12706]  ? 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)
[  109.138647][T12706]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  109.138650][T12706]  put_chars (drivers/char/virtio_console.c:1176)
[  109.138653][T12706]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  109.138655][T12706]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  109.138659][T12706]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  109.138664][T12706]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  109.138666][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138669][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.138672][T12706]  console_emit_next_record (kernel/printk/printk.c:3183)
[  109.138675][T12706]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  109.138678][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138681][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138683][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138685][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.138688][T12706]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  109.138691][T12706]  console_flush_one_record (kernel/printk/printk.c:3268)
[  109.138694][T12706]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  109.138698][T12706]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  109.138701][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.138704][T12706]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  109.138706][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138708][T12706]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  109.138710][T12706]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  109.138713][T12706]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  109.138716][T12706]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  109.138718][T12706]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  109.138721][T12706]  vprintk_emit (kernel/printk/printk.c:2479)
[  109.138725][T12706]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  109.138727][T12706]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  109.138731][T12706]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  109.138734][T12706]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  109.138736][T12706]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  109.138740][T12706]  ? ___sys_sendmsg (net/socket.c:2767)
[  109.138741][T12706]  ? __sys_sendmsg (net/socket.c:2799)
[  109.138744][T12706]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  109.138748][T12706]  _printk (kernel/printk/printk.c:2504)
[  109.138752][T12706]  ? snapshot_read.cold (user.c:?)
[  109.138755][T12706]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[  109.138759][T12706]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[  109.138762][T12706]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[  109.138765][T12706]  ? netdev_notice (net/core/dev.c:13194)
[  109.138768][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138770][T12706]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[  109.138773][T12706]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  109.138776][T12706]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[  109.138778][T12706]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  109.138782][T12706]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[  109.138786][T12706]  dev_set_allmulti (net/core/dev_api.c:315)
[  109.138790][T12706] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[  109.138813][T12706]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  109.138817][T12706]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  109.138821][T12706] br_del_if (net/bridge/br_if.c:732) bridge
[  109.138833][T12706]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  109.138836][T12706]  do_set_master (net/core/rtnetlink.c:3055)
[  109.138840][T12706]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  109.138843][T12706]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  109.138846][T12706]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  109.138848][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138851][T12706]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  109.138856][T12706]  ? kasan_save_stack (mm/kasan/common.c:58)
[  109.138859][T12706]  ? kasan_save_stack (mm/kasan/common.c:57)
[  109.138862][T12706]  ? kasan_save_track (mm/kasan/common.c:78)
[  109.138864][T12706]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  109.138866][T12706]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  109.138868][T12706]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  109.138870][T12706]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  109.138872][T12706]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  109.138874][T12706]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  109.138876][T12706]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  109.138878][T12706]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  109.138880][T12706]  ? ___sys_sendmsg (net/socket.c:2767)
[  109.138882][T12706]  ? __sys_sendmsg (net/socket.c:2799)
[  109.138885][T12706]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  109.138887][T12706]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  109.138890][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138893][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.138895][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138897][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138900][T12706]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  109.138903][T12706]  ? __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)
[  109.138906][T12706]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  109.138908][T12706]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  109.138911][T12706]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  109.138913][T12706]  ? nla_get_range_signed (lib/nlattr.c:270)
[  109.138916][T12706]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  109.138920][T12706]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  109.138923][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138926][T12706]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.138928][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.138930][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138933][T12706]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  109.138935][T12706]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  109.138938][T12706]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  109.138940][T12706]  ? __kernel_text_address (kernel/extable.c:79)
[  109.138942][T12706]  ? write_profile (profile.c:?)
[  109.138944][T12706]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  109.138947][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138950][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138952][T12706]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  109.138956][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.138959][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138962][T12706]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.138964][T12706]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  109.138966][T12706]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  109.138968][T12706]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  109.138971][T12706]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  109.138975][T12706]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  109.138977][T12706]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  109.138979][T12706]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  109.138981][T12706]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  109.138983][T12706]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  109.138987][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.138989][T12706]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  109.138992][T12706]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  109.138995][T12706]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  109.138998][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.139000][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.139002][T12706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.139005][T12706]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  109.139012][T12706]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  109.139015][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.139017][T12706]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  109.139020][T12706]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  109.139022][T12706]  ? copy_msghdr_from_user (net/socket.c:2650)
[  109.139025][T12706]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  109.139027][T12706]  ? move_addr_to_kernel (net/socket.c:258)
[  109.139029][T12706]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  109.139033][T12706]  ___sys_sendmsg (net/socket.c:2767)
[  109.139036][T12706]  ? copy_msghdr_from_user (net/socket.c:2619)
[  109.139044][T12706]  __sys_sendmsg (net/socket.c:2799)
[  109.139047][T12706]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  109.139051][T12706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.139054][T12706]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  109.139056][T12706]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  109.139059][T12706]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  109.139062][T12706] RIP: 0033:0x7f4bbf57154e
[  109.139064][T12706] 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
[  109.139067][T12706] RSP: 002b:00007fffea208990 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  109.139071][T12706] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4bbf57154e
[  109.139073][T12706] RDX: 0000000000000000 RSI: 00007fffea208a40 RDI: 0000000000000005
[  109.139075][T12706] RBP: 00007fffea2089a0 R08: 0000000000000000 R09: 0000000000000000
[  109.139076][T12706] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91541e
[  109.139078][T12706] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffea209100
| [  124.326526][T14771] softirqs last disabled at (0): 0x0
| [  124.326528][T14771] Preemption disabled at:
| [  124.326529][T14771] vprintk_emit (kernel/printk/printk.c:2471)
| [  124.326540][T14771] Tainted: [W]=WARN
[  124.326541][T14771] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  124.326543][T14771] Call Trace:
[  124.326544][T14771]  <TASK>
[  124.326545][T14771]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  124.326551][T14771]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  124.326553][T14771]  __might_resched.cold (kernel/sched/core.c:9234)
[  124.326556][T14771]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  124.326559][T14771]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  124.326562][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326565][T14771]  __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))
[  124.326568][T14771]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  124.326571][T14771]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  124.326574][T14771]  ? 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)
[  124.326576][T14771]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  124.326578][T14771]  put_chars (drivers/char/virtio_console.c:1176)
[  124.326580][T14771]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  124.326581][T14771]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  124.326584][T14771]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  124.326587][T14771]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  124.326588][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326590][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326592][T14771]  console_emit_next_record (kernel/printk/printk.c:3183)
[  124.326595][T14771]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  124.326597][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326598][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326600][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326601][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326603][T14771]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  124.326605][T14771]  console_flush_one_record (kernel/printk/printk.c:3268)
[  124.326607][T14771]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  124.326610][T14771]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  124.326611][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326613][T14771]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  124.326614][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326616][T14771]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  124.326617][T14771]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  124.326619][T14771]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  124.326621][T14771]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  124.326623][T14771]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  124.326625][T14771]  vprintk_emit (kernel/printk/printk.c:2479)
[  124.326628][T14771]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  124.326630][T14771]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  124.326634][T14771]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  124.326637][T14771]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  124.326639][T14771]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  124.326641][T14771]  ? ___sys_sendmsg (net/socket.c:2767)
[  124.326643][T14771]  ? __sys_sendmsg (net/socket.c:2799)
[  124.326644][T14771]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  124.326648][T14771]  _printk (kernel/printk/printk.c:2504)
[  124.326651][T14771]  ? snapshot_read.cold (user.c:?)
[  124.326653][T14771]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[  124.326656][T14771]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[  124.326657][T14771]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[  124.326659][T14771]  ? netdev_notice (net/core/dev.c:13194)
[  124.326661][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326663][T14771]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[  124.326664][T14771]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  124.326666][T14771]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[  124.326668][T14771]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[  124.326670][T14771]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[  124.326674][T14771]  dev_set_allmulti (net/core/dev_api.c:315)
[  124.326676][T14771] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[  124.326689][T14771]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  124.326692][T14771]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  124.326695][T14771] br_del_if (net/bridge/br_if.c:732) bridge
[  124.326702][T14771]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  124.326704][T14771]  do_set_master (net/core/rtnetlink.c:3055)
[  124.326707][T14771]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  124.326709][T14771]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  124.326711][T14771]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  124.326712][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326714][T14771]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  124.326718][T14771]  ? kasan_save_stack (mm/kasan/common.c:58)
[  124.326720][T14771]  ? kasan_save_stack (mm/kasan/common.c:57)
[  124.326722][T14771]  ? kasan_save_track (mm/kasan/common.c:78)
[  124.326723][T14771]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  124.326725][T14771]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  124.326726][T14771]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  124.326727][T14771]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  124.326728][T14771]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  124.326730][T14771]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  124.326731][T14771]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  124.326732][T14771]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  124.326733][T14771]  ? ___sys_sendmsg (net/socket.c:2767)
[  124.326735][T14771]  ? __sys_sendmsg (net/socket.c:2799)
[  124.326736][T14771]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  124.326737][T14771]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  124.326740][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326741][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326743][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326744][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326746][T14771]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  124.326748][T14771]  ? __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)
[  124.326750][T14771]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  124.326751][T14771]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  124.326753][T14771]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  124.326754][T14771]  ? nla_get_range_signed (lib/nlattr.c:270)
[  124.326756][T14771]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  124.326758][T14771]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  124.326760][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326762][T14771]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  124.326763][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326764][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326766][T14771]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  124.326768][T14771]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  124.326770][T14771]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  124.326771][T14771]  ? __kernel_text_address (kernel/extable.c:79)
[  124.326772][T14771]  ? write_profile (profile.c:?)
[  124.326774][T14771]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  124.326776][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326778][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326779][T14771]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  124.326782][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326784][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326786][T14771]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  124.326787][T14771]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  124.326789][T14771]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  124.326790][T14771]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  124.326793][T14771]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  124.326796][T14771]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  124.326799][T14771]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  124.326800][T14771]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  124.326802][T14771]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  124.326803][T14771]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  124.326805][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326807][T14771]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  124.326809][T14771]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  124.326811][T14771]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  124.326813][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326814][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326816][T14771]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  124.326818][T14771]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  124.326820][T14771]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  124.326821][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326823][T14771]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  124.326825][T14771]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  124.326827][T14771]  ? copy_msghdr_from_user (net/socket.c:2650)
[  124.326828][T14771]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  124.326830][T14771]  ? move_addr_to_kernel (net/socket.c:258)
[  124.326831][T14771]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  124.326833][T14771]  ___sys_sendmsg (net/socket.c:2767)
[  124.326835][T14771]  ? copy_msghdr_from_user (net/socket.c:2619)
[  124.326840][T14771]  __sys_sendmsg (net/socket.c:2799)
[  124.326842][T14771]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  124.326844][T14771]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  124.326846][T14771]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  124.326848][T14771]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  124.326850][T14771]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  124.326851][T14771] RIP: 0033:0x7ffbe2a2e54e
[  124.326853][T14771] 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
[  124.326855][T14771] RSP: 002b:00007ffe830ddf90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  124.326859][T14771] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ffbe2a2e54e
[  124.326860][T14771] RDX: 0000000000000000 RSI: 00007ffe830de040 RDI: 0000000000000005
[  124.326861][T14771] RBP: 00007ffe830ddfa0 R08: 0000000000000000 R09: 0000000000000000
[  124.326862][T14771] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91542d


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
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars