======================================
| [    9.655251][  T186] softirqs last disabled at (51961): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.655254][  T186] Preemption disabled at:
| [    9.655255][  T186] 0x0
| [    9.655266][  T186] Tainted: [W]=WARN
[    9.655267][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.655268][  T186] Call Trace:
[    9.655270][  T186]  <TASK>
[    9.655272][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.655279][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.655284][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.655289][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.655294][  T186]  __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))
[    9.655296][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.655302][  T186]  ? 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)
[    9.655305][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.655308][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[    9.655311][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.655312][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.655317][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.655322][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.655329][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.655331][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.655333][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.655337][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.655341][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.655343][  T186]  ? 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))
[    9.655346][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.655349][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.655352][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.655357][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.655359][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.655363][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.655366][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.655368][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.655370][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.655374][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.655375][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.655379][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.655383][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.655386][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.655389][  T186]  _printk (kernel/printk/printk.c:2504)
[    9.655393][  T186]  ? snapshot_read.cold (user.c:?)
[    9.655396][  T186]  ? 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)
[    9.655399][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.655402][  T186]  ? 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)
[    9.655405][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.655409][  T186]  ? exit_notify (kernel/exit.c:780)
[    9.655411][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.655413][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.655417][  T186]  do_group_exit (kernel/exit.c:1151)
[    9.655420][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.655422][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.655424][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.655427][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.655431][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.655433][  T186] RIP: 0033:0x7f21abd491b8
[    9.655435][  T186] Code: Unable to access opcode bytes at 0x7f21abd4918e.

Code starting with the faulting instruction
===========================================
[    9.655437][  T186] RSP: 002b:00007fff6463ac88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.655439][  T186] RAX: ffffffffffffffda RBX: 00007f21abe79f88 RCX: 00007f21abd491b8
[    9.655440][  T186] RDX: 00007f21aba93fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.655441][  T186] RBP: 00007fff6463ace0 R08: 0000000000000000 R09: 0000000000008010
[    9.655442][  T186] R10: 00007fff6463aaa0 R11: 0000000000000246 R12: 0000000000000001
[    9.655443][  T186] R13: 0000000000000000 R14: 00007f21abe78680 R15: 00007f21abe79fa0
| [   10.772960][  T238] softirqs last disabled at (25421): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.772962][  T238] Preemption disabled at:
| [   10.772962][  T238] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.772971][  T238] Tainted: [W]=WARN
[   10.772972][  T238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.772974][  T238] Call Trace:
[   10.772975][  T238]  <TASK>
[   10.772977][  T238]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.772982][  T238]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.772984][  T238]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.772988][  T238]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.772992][  T238]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.772997][  T238]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.772999][  T238]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.773005][  T238]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.773007][  T238]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.773010][  T238]  put_chars (drivers/char/virtio_console.c:1176)
[   10.773013][  T238]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.773014][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.773019][  T238]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.773021][  T238]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.773026][  T238]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.773028][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.773033][  T238]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.773035][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.773040][  T238]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.773044][  T238]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.773046][  T238]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.773049][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.773051][  T238]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.773055][  T238]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.773059][  T238]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.773060][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.773065][  T238]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.773068][  T238]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.773070][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.773072][  T238]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.773075][  T238]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.773077][  T238]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.773080][  T238]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.773084][  T238]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.773090][  T238]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.773094][  T238]  _printk (kernel/printk/printk.c:2504)
[   10.773098][  T238]  ? snapshot_read.cold (user.c:?)
[   10.773104][  T238]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   10.773107][  T238] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   10.773110][  T238]  do_one_initcall (init/main.c:1357)
[   10.773112][  T238]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.773117][  T238]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.773120][  T238]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.773125][  T238]  do_init_module (kernel/module/main.c:3117)
[   10.773128][  T238]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.773132][  T238]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.773135][  T238]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.773139][  T238]  load_module (kernel/module/main.c:3593)
[   10.773146][  T238]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.773149][  T238]  ? __ia32_sys_fsconfig (??:?)
[   10.773152][  T238]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.773156][  T238]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.773159][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.773163][  T238]  init_module_from_file (kernel/module/main.c:3790)
[   10.773166][  T238]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.773173][  T238]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.773177][  T238]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.773180][  T238]  idempotent_init_module (kernel/module/main.c:3802)
[   10.773183][  T238]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.773189][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.773191][  T238]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.773197][  T238]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.773199][  T238]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.773202][  T238]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.773204][  T238]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.773206][  T238]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.773208][  T238] RIP: 0033:0x7f9f6d97737d
[   10.773212][  T238] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.773213][  T238] RSP: 002b:00007fff77ef9428 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.773216][  T238] RAX: ffffffffffffffda RBX: 00005612a18d4810 RCX: 00007f9f6d97737d
[   10.773217][  T238] RDX: 0000000000000000 RSI: 0000561285f2dffd RDI: 0000000000000000
[   10.773218][  T238] RBP: 00007fff77ef94c0 R08: 0000000000000000 R09: 0000000000000000
[   10.773219][  T238] R10: 0000000000000000 R11: 0000000000000246 R12: 0000561285f2dffd
[   10.773220][  T238] R13: 00005612a18d4960 R14: 0000000000040000 R15: 0000000000000000
| [   11.982344][  T285] softirqs last disabled at (13078): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.982346][  T285] Preemption disabled at:
| [   11.982347][  T285] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.982356][  T285] Tainted: [W]=WARN
[   11.982357][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.982358][  T285] Call Trace:
[   11.982360][  T285]  <TASK>
[   11.982361][  T285]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.982367][  T285]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.982369][  T285]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.982374][  T285]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.982378][  T285]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.982383][  T285]  __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))
[   11.982385][  T285]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.982390][  T285]  ? 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)
[   11.982393][  T285]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.982396][  T285]  put_chars (drivers/char/virtio_console.c:1176)
[   11.982399][  T285]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.982403][  T285]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.982406][  T285]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.982409][  T285]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.982411][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982412][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982416][  T285]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.982418][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.982421][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982425][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.982429][  T285]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.982432][  T285]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.982434][  T285]  ? 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))
[   11.982437][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982439][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.982443][  T285]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.982447][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.982449][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982454][  T285]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.982457][  T285]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.982458][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982461][  T285]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.982464][  T285]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.982466][  T285]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.982469][  T285]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.982473][  T285]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.982475][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.982477][  T285]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.982481][  T285]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.982485][  T285]  _printk (kernel/printk/printk.c:2504)
[   11.982488][  T285]  ? snapshot_read.cold (user.c:?)
[   11.982492][  T285]  ? br_multicast_flood (??:?) bridge
[   11.982504][  T285]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.982505][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.982507][  T285]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.982511][  T285] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.982520][  T285] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.982529][  T285] new_nbp (net/bridge/br_if.c:449) bridge
[   11.982537][  T285] br_add_if (net/bridge/br_if.c:592) bridge
[   11.982544][  T285]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.982548][  T285]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.982551][  T285]  ? __kernel_text_address (kernel/extable.c:79)
[   11.982555][  T285]  do_set_master (net/core/rtnetlink.c:3071)
[   11.982560][  T285]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.982563][  T285]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.982566][  T285]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.982567][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.982569][  T285]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.982573][  T285]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.982576][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.982577][  T285]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.982580][  T285]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.982583][  T285]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.982585][  T285]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.982587][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982589][  T285]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.982592][  T285]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.982596][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.982598][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.982601][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982603][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.982605][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982606][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982609][  T285]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.982613][  T285]  ? __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)
[   11.982614][  T285]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.982616][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.982620][  T285]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.982621][  T285]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.982626][  T285]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.982631][  T285]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.982636][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.982638][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982642][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.982644][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.982646][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.982648][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.982652][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.982654][  T285]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.982657][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.982658][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982662][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.982664][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.982667][  T285]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.982669][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.982672][  T285]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.982678][  T285]  ? 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))
[   11.982679][  T285]  ? 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))
[   11.982683][  T285]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.982687][  T285]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.982689][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.982693][  T285]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.982697][  T285]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.982700][  T285]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.982705][  T285]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.982708][  T285]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.982710][  T285]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.982711][  T285]  ? move_addr_to_kernel (net/socket.c:258)
[   11.982718][  T285]  ___sys_sendmsg (net/socket.c:2767)
[   11.982721][  T285]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.982736][  T285]  __sys_sendmsg (net/socket.c:2799)
[   11.982739][  T285]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.982745][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.982748][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.982751][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.982754][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.982756][  T285] RIP: 0033:0x7fb19316954e
[   11.982759][  T285] 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
[   11.982761][  T285] RSP: 002b:00007ffc98abea30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.982764][  T285] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb19316954e
[   11.982765][  T285] RDX: 0000000000000000 RSI: 00007ffc98abeae0 RDI: 0000000000000005
[   11.982766][  T285] RBP: 00007ffc98abea40 R08: 0000000000000000 R09: 0000000000000000
[   11.982767][  T285] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c32
[   11.982768][  T285] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc98abf1a0
| [   13.695266][  T345] softirqs last disabled at (25964): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.695268][  T345] Preemption disabled at:
| [   13.695269][  T345] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.695280][  T345] Tainted: [W]=WARN
[   13.695281][  T345] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.695283][  T345] Call Trace:
[   13.695284][  T345]  <TASK>
[   13.695286][  T345]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.695291][  T345]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.695294][  T345]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.695298][  T345]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.695302][  T345]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.695308][  T345]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.695310][  T345]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.695315][  T345]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.695318][  T345]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.695321][  T345]  put_chars (drivers/char/virtio_console.c:1176)
[   13.695323][  T345]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.695325][  T345]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.695328][  T345]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.695332][  T345]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.695335][  T345]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.695338][  T345]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.695341][  T345]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.695343][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695344][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695348][  T345]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.695350][  T345]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.695353][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695355][  T345]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.695359][  T345]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.695363][  T345]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.695365][  T345]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.695368][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695370][  T345]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.695374][  T345]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.695378][  T345]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.695380][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695385][  T345]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.695387][  T345]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.695389][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695391][  T345]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.695395][  T345]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.695396][  T345]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.695400][  T345]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.695404][  T345]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.695406][  T345]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.695409][  T345]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.695412][  T345]  _printk (kernel/printk/printk.c:2504)
[   13.695416][  T345]  ? snapshot_read.cold (user.c:?)
[   13.695420][  T345]  ? br_multicast_flood (??:?) bridge
[   13.695432][  T345]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.695433][  T345]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.695434][  T345]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.695439][  T345] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.695449][  T345] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.695457][  T345] new_nbp (net/bridge/br_if.c:449) bridge
[   13.695466][  T345] br_add_if (net/bridge/br_if.c:592) bridge
[   13.695473][  T345]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.695477][  T345]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.695480][  T345]  ? __kernel_text_address (kernel/extable.c:79)
[   13.695484][  T345]  do_set_master (net/core/rtnetlink.c:3071)
[   13.695488][  T345]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.695491][  T345]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.695494][  T345]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.695496][  T345]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.695497][  T345]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.695501][  T345]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.695503][  T345]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.695505][  T345]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.695508][  T345]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.695511][  T345]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.695512][  T345]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.695515][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695517][  T345]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.695520][  T345]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.695525][  T345]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.695526][  T345]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.695529][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695531][  T345]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.695533][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695534][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695537][  T345]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.695540][  T345]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.695543][  T345]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.695545][  T345]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.695549][  T345]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.695550][  T345]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.695555][  T345]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.695560][  T345]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.695565][  T345]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.695567][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695571][  T345]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.695573][  T345]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.695575][  T345]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.695577][  T345]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.695580][  T345]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.695582][  T345]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.695585][  T345]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.695586][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695591][  T345]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.695593][  T345]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.695596][  T345]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.695598][  T345]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.695600][  T345]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.695606][  T345]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.695608][  T345]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.695612][  T345]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.695615][  T345]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.695618][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.695622][  T345]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.695625][  T345]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.695629][  T345]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.695634][  T345]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.695636][  T345]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.695639][  T345]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.695640][  T345]  ? move_addr_to_kernel (net/socket.c:258)
[   13.695647][  T345]  ___sys_sendmsg (net/socket.c:2767)
[   13.695650][  T345]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.695665][  T345]  __sys_sendmsg (net/socket.c:2799)
[   13.695668][  T345]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.695674][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.695677][  T345]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.695680][  T345]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.695683][  T345]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.695685][  T345] RIP: 0033:0x7fd721d4b54e
[   13.695688][  T345] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.695690][  T345] RSP: 002b:00007ffdcd72c320 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.695693][  T345] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd721d4b54e
[   13.695694][  T345] RDX: 0000000000000000 RSI: 00007ffdcd72c3d0 RDI: 0000000000000005
[   13.695695][  T345] RBP: 00007ffdcd72c330 R08: 0000000000000000 R09: 0000000000000000
[   13.695696][  T345] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c34
[   13.695697][  T345] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdcd72ca90
| [   15.488032][  T399] softirqs last disabled at (19740): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.488035][  T399] Preemption disabled at:
| [   15.488036][  T399] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.488048][  T399] Tainted: [W]=WARN
[   15.488050][  T399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.488052][  T399] Call Trace:
[   15.488054][  T399]  <TASK>
[   15.488056][  T399]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.488063][  T399]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.488066][  T399]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.488073][  T399]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.488079][  T399]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.488086][  T399]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   15.488090][  T399]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.488098][  T399]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.488102][  T399]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.488107][  T399]  put_chars (drivers/char/virtio_console.c:1176)
[   15.488110][  T399]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.488113][  T399]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.488118][  T399]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.488124][  T399]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.488127][  T399]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.488134][  T399]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.488138][  T399]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.488140][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488143][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488149][  T399]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.488153][  T399]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.488158][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488162][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.488168][  T399]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.488175][  T399]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.488177][  T399]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   15.488182][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488185][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.488192][  T399]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.488199][  T399]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.488202][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488211][  T399]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.488215][  T399]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.488217][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488221][  T399]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.488227][  T399]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.488229][  T399]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.488235][  T399]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.488241][  T399]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.488245][  T399]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.488250][  T399]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.488255][  T399]  _printk (kernel/printk/printk.c:2504)
[   15.488261][  T399]  ? snapshot_read.cold (user.c:?)
[   15.488267][  T399]  ? br_multicast_flood (??:?) bridge
[   15.488287][  T399]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.488289][  T399]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.488291][  T399]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.488299][  T399] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.488316][  T399] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.488329][  T399] new_nbp (net/bridge/br_if.c:449) bridge
[   15.488345][  T399] br_add_if (net/bridge/br_if.c:592) bridge
[   15.488357][  T399]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.488363][  T399]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.488367][  T399]  ? __kernel_text_address (kernel/extable.c:79)
[   15.488373][  T399]  do_set_master (net/core/rtnetlink.c:3071)
[   15.488381][  T399]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.488386][  T399]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.488391][  T399]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.488393][  T399]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.488396][  T399]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.488400][  T399]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.488404][  T399]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.488407][  T399]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.488411][  T399]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.488415][  T399]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.488417][  T399]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.488422][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488425][  T399]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   15.488429][  T399]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.488436][  T399]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.488438][  T399]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.488443][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488447][  T399]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.488449][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488452][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488455][  T399]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.488460][  T399]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   15.488464][  T399]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.488467][  T399]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.488473][  T399]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.488476][  T399]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.488484][  T399]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.488494][  T399]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.488503][  T399]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.488507][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488515][  T399]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.488517][  T399]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.488521][  T399]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.488524][  T399]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.488530][  T399]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.488534][  T399]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.488539][  T399]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.488541][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488549][  T399]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.488552][  T399]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.488558][  T399]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.488560][  T399]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.488565][  T399]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.488576][  T399]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.488579][  T399]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.488586][  T399]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.488593][  T399]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.488597][  T399]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.488604][  T399]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.488611][  T399]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.488617][  T399]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.488626][  T399]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.488629][  T399]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.488633][  T399]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.488635][  T399]  ? move_addr_to_kernel (net/socket.c:258)
[   15.488649][  T399]  ___sys_sendmsg (net/socket.c:2767)
[   15.488653][  T399]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.488683][  T399]  __sys_sendmsg (net/socket.c:2799)
[   15.488687][  T399]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.488698][  T399]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.488704][  T399]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.488707][  T399]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.488712][  T399]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.488715][  T399] RIP: 0033:0x7f4b69c3454e
[   15.488720][  T399] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.488723][  T399] RSP: 002b:00007fffb4576c40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.488727][  T399] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4b69c3454e
[   15.488729][  T399] RDX: 0000000000000000 RSI: 00007fffb4576cf0 RDI: 0000000000000005
[   15.488730][  T399] RBP: 00007fffb4576c50 R08: 0000000000000000 R09: 0000000000000000
[   15.488732][  T399] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c35
[   15.488733][  T399] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb45773b0
| [   27.513684][    C0] softirqs last disabled at (922963): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.513687][    C0] Preemption disabled at:
| [   27.513688][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.513700][    C0] Tainted: [W]=WARN
[   27.513701][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.513703][    C0] Call Trace:
[   27.513705][    C0]  <IRQ>
[   27.513708][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.513714][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.513716][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.513721][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.513725][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.513729][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513733][    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))
[   27.513737][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.513741][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.513746][    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)
[   27.513748][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.513751][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.513754][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.513757][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.513761][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.513766][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.513769][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513771][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.513775][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.513778][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.513781][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513783][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513786][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.513789][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.513791][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.513795][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.513799][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.513801][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.513804][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.513806][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513809][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.513811][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.513814][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.513817][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.513820][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.513823][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.513825][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513828][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.513830][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.513836][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.513840][    C0]  ? snapshot_read.cold (user.c:?)
[   27.513842][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.513848][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.513851][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.513853][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.513857][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.513862][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.513865][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.513866][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.513870][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.513873][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.513890][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513892][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.513895][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.513906][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.513909][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.513920][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.513931][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.513941][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.513946][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.513948][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.513953][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.513955][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.513957][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.513960][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.513963][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.513975][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.513978][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.513987][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.513991][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.513994][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.513996][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.513999][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.514002][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.514005][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.514007][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.514011][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.514013][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.514016][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.514019][    C0]  </IRQ>
[   27.514020][    C0]  <TASK>
[   27.514021][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.514024][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.514027][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.514031][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.514034][    C0] RSP: 0018:ffffffffa0a07cf8 EFLAGS: 00000296
[   27.514037][    C0] RAX: 00000000000e1551 RBX: ffffffffa0a1c600 RCX: ffffffff9daf0307
[   27.514039][    C0] RDX: ffffffffa0a1c600 RSI: ffffffffa0838af6 RDI: ffffffffa028d8e0
[   27.514041][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.514042][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4140fa2
[   27.514043][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.514046][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.514051][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.514053][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.514055][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.514058][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.514060][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.514063][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.514066][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.514069][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.514071][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.514074][    C0]  rest_init (init/main.c:727)
[   27.514076][    C0]  ? __cpuidle_text_end (??:?)
[   27.514080][    C0]  ? rest_init (init/main.c:727)
[   27.514083][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.514088][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.514092][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.514095][    C0]  start_kernel (init/main.c:1185)
[   27.514098][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.514101][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.514104][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.584080][    C0]
| [   27.584156][    C0]
| [   27.584156][    C0] stack backtrace:
| [   27.584397][    C0] Tainted: [W]=WARN
[   27.584398][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.584399][    C0] Call Trace:
[   27.584401][    C0]  <IRQ>
[   27.584402][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.584407][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.584410][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.584413][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.584415][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.584417][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.584419][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.584420][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.584428][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.584432][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.584433][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.584439][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.584441][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.584447][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.584453][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.584459][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.584462][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.584463][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.584467][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.584469][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.584471][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.584473][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.584475][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.584482][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.584484][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.584486][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.584489][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.584491][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.584492][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.584495][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.584497][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.584499][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.584500][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.584502][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.584504][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.584505][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.584507][    C0]  </IRQ>
[   27.584508][    C0]  <TASK>
[   27.584508][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.584510][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.584512][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.584514][    C0] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.584516][    C0] RSP: 0018:ffffffffa0a07cf8 EFLAGS: 00000296
[   27.584518][    C0] RAX: 00000000000e1551 RBX: ffffffffa0a1c600 RCX: ffffffff9daf0307
[   27.584520][    C0] RDX: ffffffffa0a1c600 RSI: ffffffffa0838af6 RDI: ffffffffa028d8e0
[   27.584520][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.584521][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4140fa2
[   27.584522][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.584523][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.584526][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.584527][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.584529][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.584530][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.584532][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.584533][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.584536][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.584538][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.584539][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.584541][    C0]  rest_init (init/main.c:727)
[   27.584543][    C0]  ? __cpuidle_text_end (??:?)
[   27.584545][    C0]  ? rest_init (init/main.c:727)
[   27.584547][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.584551][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.584554][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.584556][    C0]  start_kernel (init/main.c:1185)
[   27.584557][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.584559][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.584561][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.909098][   T12] softirqs last disabled at (41012): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   28.909100][   T12] Preemption disabled at:
| [   28.909101][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.909112][   T12] Tainted: [W]=WARN
[   28.909113][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.909115][   T12] Workqueue: netns cleanup_net
[   28.909121][   T12] Call Trace:
[   28.909123][   T12]  <TASK>
[   28.909124][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.909129][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.909131][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.909135][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.909138][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909142][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   28.909145][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.909148][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.909151][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.909153][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.909155][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   28.909157][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   28.909158][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.909160][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.909163][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.909166][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.909167][   T12]  ? 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)
[   28.909169][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.909170][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909172][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909174][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.909176][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.909179][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.909180][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909182][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909184][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909186][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.909187][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.909189][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.909191][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.909194][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.909196][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.909197][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.909199][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909201][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.909202][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.909204][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   28.909206][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.909208][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.909210][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.909212][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.909214][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   28.909216][   T12]  ? kthread (kernel/kthread.c:436)
[   28.909218][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   28.909221][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   28.909223][   T12]  _printk (kernel/printk/printk.c:2504)
[   28.909226][   T12]  ? snapshot_read.cold (user.c:?)
[   28.909228][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.909231][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.909233][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.909234][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   28.909236][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909238][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.909240][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   28.909242][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.909243][   T12]  ? 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)
[   28.909246][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.909249][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.909252][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   28.909264][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   28.909272][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   28.909282][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   28.909284][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   28.909286][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   28.909290][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   28.909292][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.909294][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.909295][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.909298][   T12]  process_one_work (kernel/workqueue.c:3387)
[   28.909300][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   28.909302][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.909304][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.909306][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.909309][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   28.909311][   T12]  kthread (kernel/kthread.c:436)
[   28.909312][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.909314][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.909315][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.909317][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   28.909319][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.909321][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


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
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars