======================================
| [   10.876242][  T196] softirqs last disabled at (35816): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.876245][  T196] Preemption disabled at:
| [   10.876246][  T196] 0x0
| [   10.876256][  T196] Tainted: [W]=WARN
[   10.876257][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.876259][  T196] Call Trace:
[   10.876261][  T196]  <TASK>
[   10.876262][  T196]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.876268][  T196]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.876273][  T196]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.876276][  T196]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.876281][  T196]  __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))
[   10.876284][  T196]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.876290][  T196]  ? 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)
[   10.876293][  T196]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.876297][  T196]  put_chars (drivers/char/virtio_console.c:1176)
[   10.876300][  T196]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.876307][  T196]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.876314][  T196]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.876317][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.876322][  T196]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.876326][  T196]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.876327][  T196]  ? 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))
[   10.876330][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.876333][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.876337][  T196]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.876341][  T196]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.876343][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.876348][  T196]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.876351][  T196]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.876352][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.876354][  T196]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.876358][  T196]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.876360][  T196]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.876363][  T196]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.876366][  T196]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.876370][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.876374][  T196]  _printk (kernel/printk/printk.c:2504)
[   10.876377][  T196]  ? snapshot_read.cold (user.c:?)
[   10.876380][  T196]  ? 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)
[   10.876383][  T196]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.876387][  T196]  ? 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)
[   10.876390][  T196]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.876394][  T196]  ? exit_notify (kernel/exit.c:780)
[   10.876396][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.876399][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.876403][  T196]  do_group_exit (kernel/exit.c:1151)
[   10.876406][  T196]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.876408][  T196]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.876411][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.876415][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.876418][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.876420][  T196] RIP: 0033:0x7f82c01d81b8
[   10.876422][  T196] Code: Unable to access opcode bytes at 0x7f82c01d818e.

Code starting with the faulting instruction
===========================================
[   10.876423][  T196] RSP: 002b:00007ffc9afd7c98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.876426][  T196] RAX: ffffffffffffffda RBX: 00007f82c0308f88 RCX: 00007f82c01d81b8
[   10.876427][  T196] RDX: 00007f82bff22fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.876428][  T196] RBP: 00007ffc9afd7cf0 R08: 0000000000000000 R09: 0000000000000000
[   10.876429][  T196] R10: 00007ffc9afd7ab0 R11: 0000000000000246 R12: 0000000000000001
[   10.876429][  T196] R13: 0000000000000000 R14: 00007f82c0307680 R15: 00007f82c0308fa0
| [   20.106890][  T536] softirqs last disabled at (32063): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   20.106892][  T536] Preemption disabled at:
| [   20.106893][  T536] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.106902][  T536] Tainted: [W]=WARN
[   20.106903][  T536] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.106905][  T536] Call Trace:
[   20.106906][  T536]  <TASK>
[   20.106908][  T536]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.106913][  T536]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.106915][  T536]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.106919][  T536]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.106923][  T536]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.106934][  T536]  __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))
[   20.106936][  T536]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.106943][  T536]  ? 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)
[   20.106946][  T536]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.106950][  T536]  put_chars (drivers/char/virtio_console.c:1176)
[   20.106953][  T536]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.106956][  T536]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.106961][  T536]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.106969][  T536]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.106972][  T536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106975][  T536]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.106980][  T536]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.106983][  T536]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.106984][  T536]  ? 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))
[   20.106987][  T536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.106989][  T536]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.106993][  T536]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.106997][  T536]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.106999][  T536]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.107004][  T536]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.107007][  T536]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.107008][  T536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.107010][  T536]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.107014][  T536]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.107016][  T536]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.107019][  T536]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.107023][  T536]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.107028][  T536]  ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip
[   20.107031][  T536]  _printk (kernel/printk/printk.c:2504)
[   20.107035][  T536]  ? snapshot_read.cold (user.c:?)
[   20.107041][  T536]  ? 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)
[   20.107045][  T536] ipip_init (net/ipv4/ipip.c:438) ipip
[   20.107048][  T536]  do_one_initcall (init/main.c:1357)
[   20.107051][  T536]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   20.107056][  T536]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   20.107058][  T536]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   20.107063][  T536]  do_init_module (kernel/module/main.c:3117)
[   20.107067][  T536]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   20.107072][  T536]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   20.107075][  T536]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   20.107079][  T536]  load_module (kernel/module/main.c:3593)
[   20.107086][  T536]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   20.107090][  T536]  ? __ia32_sys_fsconfig (??:?)
[   20.107093][  T536]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   20.107097][  T536]  ? backing_file_read_iter (fs/backing-file.c:211)
[   20.107100][  T536]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.107105][  T536]  init_module_from_file (kernel/module/main.c:3790)
[   20.107107][  T536]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   20.107115][  T536]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   20.107119][  T536]  ? 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)
[   20.107123][  T536]  idempotent_init_module (kernel/module/main.c:3802)
[   20.107126][  T536]  ? init_module_from_file (kernel/module/main.c:3791)
[   20.107132][  T536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.107134][  T536]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   20.107139][  T536]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   20.107141][  T536]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.107145][  T536]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.107147][  T536]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.107150][  T536]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.107152][  T536] RIP: 0033:0x7fc7883f037d
[   20.107156][  T536] 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
[   20.107158][  T536] RSP: 002b:00007ffdb02f35a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   20.107160][  T536] RAX: ffffffffffffffda RBX: 0000558b08509810 RCX: 00007fc7883f037d
[   20.107162][  T536] RDX: 0000000000000000 RSI: 0000558adc9b5ffd RDI: 0000000000000002
[   20.107163][  T536] RBP: 00007ffdb02f3640 R08: 0000000000000000 R09: 0000000000000000
[   20.107163][  T536] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558adc9b5ffd
[   20.107164][  T536] R13: 0000558b085099b0 R14: 0000000000040000 R15: 0000000000000000
| [   22.819982][  T640] softirqs last disabled at (27037): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   22.819985][  T640] Preemption disabled at:
| [   22.819986][  T640] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.819994][  T640] Tainted: [W]=WARN
[   22.819995][  T640] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.819997][  T640] Call Trace:
[   22.819999][  T640]  <TASK>
[   22.820000][  T640]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.820005][  T640]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.820007][  T640]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.820012][  T640]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.820015][  T640]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.820020][  T640]  __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))
[   22.820023][  T640]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.820029][  T640]  ? 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)
[   22.820033][  T640]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.820036][  T640]  put_chars (drivers/char/virtio_console.c:1176)
[   22.820039][  T640]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.820042][  T640]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.820048][  T640]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.820055][  T640]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.820057][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.820061][  T640]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.820065][  T640]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.820068][  T640]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.820070][  T640]  ? 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))
[   22.820072][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.820074][  T640]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.820078][  T640]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.820082][  T640]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.820084][  T640]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.820089][  T640]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.820091][  T640]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.820093][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.820094][  T640]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.820098][  T640]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.820100][  T640]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.820103][  T640]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.820107][  T640]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.820112][  T640]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   22.820116][  T640]  _printk (kernel/printk/printk.c:2504)
[   22.820120][  T640]  ? snapshot_read.cold (user.c:?)
[   22.820126][  T640]  ? 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)
[   22.820130][  T640] 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
[   22.820133][  T640]  do_one_initcall (init/main.c:1357)
[   22.820136][  T640]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   22.820141][  T640]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   22.820144][  T640]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   22.820148][  T640]  do_init_module (kernel/module/main.c:3117)
[   22.820152][  T640]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   22.820157][  T640]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   22.820159][  T640]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   22.820163][  T640]  load_module (kernel/module/main.c:3593)
[   22.820170][  T640]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   22.820174][  T640]  ? __ia32_sys_fsconfig (??:?)
[   22.820177][  T640]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   22.820181][  T640]  ? backing_file_read_iter (fs/backing-file.c:211)
[   22.820184][  T640]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.820188][  T640]  init_module_from_file (kernel/module/main.c:3790)
[   22.820191][  T640]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   22.820198][  T640]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   22.820202][  T640]  ? 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)
[   22.820206][  T640]  idempotent_init_module (kernel/module/main.c:3802)
[   22.820209][  T640]  ? init_module_from_file (kernel/module/main.c:3791)
[   22.820215][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.820217][  T640]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   22.820222][  T640]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   22.820223][  T640]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.820227][  T640]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.820229][  T640]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.820232][  T640]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.820234][  T640] RIP: 0033:0x7f660634637d
[   22.820238][  T640] 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
[   22.820239][  T640] RSP: 002b:00007ffe48b9cc98 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   22.820242][  T640] RAX: ffffffffffffffda RBX: 000055a52fc92810 RCX: 00007f660634637d
[   22.820244][  T640] RDX: 0000000000000000 RSI: 000055a50a09affd RDI: 0000000000000000
[   22.820245][  T640] RBP: 00007ffe48b9cd30 R08: 0000000000000000 R09: 0000000000000000
[   22.820245][  T640] R10: 0000000000000000 R11: 0000000000000246 R12: 000055a50a09affd
[   22.820246][  T640] R13: 000055a52fc92960 R14: 0000000000040000 R15: 0000000000000000
| [   25.814643][  T751] softirqs last disabled at (70526): llc_sap_open (./include/linux/spinlock.h:353 net/llc/llc_core.c:93) llc
| [   25.814648][  T751] Preemption disabled at:
| [   25.814649][  T751] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.814658][  T751] Tainted: [W]=WARN
[   25.814659][  T751] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.814661][  T751] Call Trace:
[   25.814662][  T751]  <TASK>
[   25.814664][  T751]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.814669][  T751]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.814670][  T751]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.814675][  T751]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.814678][  T751]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.814683][  T751]  __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))
[   25.814686][  T751]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.814692][  T751]  ? 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)
[   25.814695][  T751]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.814698][  T751]  put_chars (drivers/char/virtio_console.c:1176)
[   25.814701][  T751]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.814704][  T751]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.814710][  T751]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.814716][  T751]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.814719][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.814722][  T751]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.814726][  T751]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.814730][  T751]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.814731][  T751]  ? 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))
[   25.814734][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.814736][  T751]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.814740][  T751]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.814744][  T751]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.814745][  T751]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.814750][  T751]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.814753][  T751]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.814754][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.814756][  T751]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.814760][  T751]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.814762][  T751]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.814765][  T751]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.814768][  T751]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.814770][  T751]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.814773][  T751]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.814776][  T751]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   25.814778][  T751]  _printk (kernel/printk/printk.c:2504)
[   25.814782][  T751]  ? snapshot_read.cold (user.c:?)
[   25.814784][  T751]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   25.814789][  T751]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   25.814793][  T751]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   25.814796][  T751] br_init (bridge.mod.c:?) bridge
[   25.814812][  T751]  do_one_initcall (init/main.c:1357)
[   25.814815][  T751]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   25.814821][  T751]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   25.814823][  T751]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   25.814828][  T751]  do_init_module (kernel/module/main.c:3117)
[   25.814832][  T751]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.814835][  T751]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   25.814838][  T751]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   25.814842][  T751]  load_module (kernel/module/main.c:3593)
[   25.814849][  T751]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   25.814854][  T751]  ? backing_file_read_iter (fs/backing-file.c:211)
[   25.814857][  T751]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.814861][  T751]  init_module_from_file (kernel/module/main.c:3790)
[   25.814864][  T751]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   25.814872][  T751]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   25.814876][  T751]  ? 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)
[   25.814879][  T751]  idempotent_init_module (kernel/module/main.c:3802)
[   25.814882][  T751]  ? init_module_from_file (kernel/module/main.c:3791)
[   25.814888][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.814890][  T751]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   25.814895][  T751]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   25.814897][  T751]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.814901][  T751]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.814903][  T751]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.814906][  T751]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.814908][  T751] RIP: 0033:0x7f61845fb37d
[   25.814911][  T751] 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
[   25.814913][  T751] RSP: 002b:00007fffc9051398 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   25.814916][  T751] RAX: ffffffffffffffda RBX: 000055aeaabc1810 RCX: 00007f61845fb37d
[   25.814917][  T751] RDX: 0000000000000000 RSI: 000055ae871b9ffd RDI: 0000000000000002
[   25.814918][  T751] RBP: 00007fffc9051430 R08: 0000000000000000 R09: 0000000000000000
[   25.814919][  T751] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ae871b9ffd
[   25.814920][  T751] R13: 000055aeaabc19c0 R14: 0000000000040000 R15: 0000000000000000
| [   28.967533][  T878] softirqs last disabled at (20075): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.967536][  T878] Preemption disabled at:
| [   28.967536][  T878] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.967545][  T878] Tainted: [W]=WARN
[   28.967546][  T878] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.967547][  T878] Call Trace:
[   28.967549][  T878]  <TASK>
[   28.967550][  T878]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.967555][  T878]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.967557][  T878]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.967562][  T878]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.967565][  T878]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.967570][  T878]  __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))
[   28.967572][  T878]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.967578][  T878]  ? 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)
[   28.967582][  T878]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.967585][  T878]  put_chars (drivers/char/virtio_console.c:1176)
[   28.967587][  T878]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   28.967590][  T878]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.967593][  T878]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.967597][  T878]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.967600][  T878]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.967604][  T878]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.967607][  T878]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   28.967610][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.967611][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.967616][  T878]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.967618][  T878]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   28.967621][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967623][  T878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.967627][  T878]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.967631][  T878]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.967632][  T878]  ? 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))
[   28.967635][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967637][  T878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.967641][  T878]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.967646][  T878]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.967648][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.967653][  T878]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.967656][  T878]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.967657][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967659][  T878]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.967663][  T878]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.967665][  T878]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.967668][  T878]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.967671][  T878]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.967673][  T878]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.967674][  T878]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.967677][  T878]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.967678][  T878]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.967680][  T878]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   28.967683][  T878]  ? ___sys_sendmsg (net/socket.c:2767)
[   28.967684][  T878]  ? __sys_sendmsg (net/socket.c:2799)
[   28.967688][  T878]  _printk (kernel/printk/printk.c:2504)
[   28.967692][  T878]  ? snapshot_read.cold (user.c:?)
[   28.967697][  T878]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.967700][  T878]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.967704][  T878]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.967707][  T878]  ? netdev_notice (net/core/dev.c:13194)
[   28.967711][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967713][  T878]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.967715][  T878]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.967718][  T878]  ? 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)
[   28.967721][  T878]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.967725][  T878]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.967729][  T878] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   28.967746][  T878] br_del_if (net/bridge/br_if.c:732) bridge
[   28.967753][  T878]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.967757][  T878]  do_set_master (net/core/rtnetlink.c:3055)
[   28.967762][  T878]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   28.967765][  T878]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.967769][  T878]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.967770][  T878]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.967772][  T878]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.967776][  T878]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.967778][  T878]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.967780][  T878]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.967783][  T878]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.967786][  T878]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.967788][  T878]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.967791][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.967793][  T878]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   28.967795][  T878]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   28.967799][  T878]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.967801][  T878]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.967803][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967805][  T878]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.967807][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967809][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967810][  T878]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.967813][  T878]  ? __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)
[   28.967816][  T878]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.967819][  T878]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.967822][  T878]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.967824][  T878]  ? nla_get_range_signed (lib/nlattr.c:270)
[   28.967830][  T878]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.967835][  T878]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.967841][  T878]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.967843][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.967847][  T878]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.967850][  T878]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.967852][  T878]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.967854][  T878]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.967858][  T878]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.967860][  T878]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.967863][  T878]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.967864][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.967869][  T878]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.967871][  T878]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.967875][  T878]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.967876][  T878]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.967879][  T878]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.967885][  T878]  ? 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))
[   28.967887][  T878]  ? 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))
[   28.967891][  T878]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.967895][  T878]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.967898][  T878]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   28.967902][  T878]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.967906][  T878]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.967907][  T878]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.967910][  T878]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   28.967914][  T878]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   28.967918][  T878]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   28.967921][  T878]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.967923][  T878]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   28.967925][  T878]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   28.967932][  T878]  ___sys_sendmsg (net/socket.c:2767)
[   28.967935][  T878]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.967951][  T878]  __sys_sendmsg (net/socket.c:2799)
[   28.967954][  T878]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.967960][  T878]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.967963][  T878]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.967966][  T878]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.967969][  T878]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.967972][  T878] RIP: 0033:0x7f9c1310d54e
[   28.967980][  T878] 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
[   28.967982][  T878] RSP: 002b:00007fffc0f870f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.967985][  T878] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9c1310d54e
[   28.967986][  T878] RDX: 0000000000000000 RSI: 00007fffc0f871a0 RDI: 0000000000000005
[   28.967987][  T878] RBP: 00007fffc0f87100 R08: 0000000000000000 R09: 0000000000000000
[   28.967988][  T878] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917d54
[   28.967989][  T878] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffc0f87870
| [   30.388415][   T10] softirqs last disabled at (60006): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   30.388423][   T10] Preemption disabled at:
| [   30.388424][   T10] 0x0
| [   30.388434][   T10] Tainted: [W]=WARN
[   30.388435][   T10] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.388436][   T10] Workqueue: events netdev_work_proc
[   30.388439][   T10] Call Trace:
[   30.388441][   T10]  <TASK>
[   30.388442][   T10]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.388448][   T10]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.388453][   T10]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.388456][   T10]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   30.388461][   T10]  __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))
[   30.388464][   T10]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.388470][   T10]  ? 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)
[   30.388473][   T10]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.388476][   T10]  put_chars (drivers/char/virtio_console.c:1176)
[   30.388479][   T10]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.388486][   T10]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.388493][   T10]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.388496][   T10]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.388501][   T10]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.388504][   T10]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.388506][   T10]  ? 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))
[   30.388508][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.388512][   T10]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.388516][   T10]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.388520][   T10]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.388521][   T10]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.388527][   T10]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.388529][   T10]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.388531][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.388533][   T10]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   30.388537][   T10]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.388539][   T10]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.388542][   T10]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.388546][   T10]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.388548][   T10]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.388553][   T10]  _printk (kernel/printk/printk.c:2504)
[   30.388557][   T10]  ? snapshot_read.cold (user.c:?)
[   30.388560][   T10]  ? kthread_stop_put (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:949 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:401 (discriminator 4) ./include/linux/refcount.h:389 (discriminator 4) ./include/linux/refcount.h:432 (discriminator 4) ./include/linux/refcount.h:450 (discriminator 4) ./include/linux/sched/task.h:131 (discriminator 4) kernel/kthread.c:782 (discriminator 4))
[   30.388567][   T10] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   30.388579][   T10] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   30.388588][   T10] br_device_event (net/bridge/br.c:111) bridge
[   30.388597][   T10]  ? 0xffffffffc0c00000
[   30.388603][   T10]  notifier_call_chain (kernel/notifier.c:85)
[   30.388609][   T10]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   30.388615][   T10]  ? netif_change_name (net/core/dev.c:1517)
[   30.388618][   T10]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   30.388620][   T10]  ? ref_tracker_alloc (lib/ref_tracker.c:283)
[   30.388625][   T10]  ? process_one_work (kernel/workqueue.c:3387)
[   30.388626][   T10]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   30.388627][   T10]  ? kthread (kernel/kthread.c:436)
[   30.388629][   T10]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   30.388632][   T10]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   30.388637][   T10]  netif_change_flags (net/core/dev.c:9882)
[   30.388641][   T10] vlan_dev_work (net/8021q/vlan_dev.c:1035) 8021q
[   30.388648][   T10]  netdev_work_proc (net/core/netdev_work.c:127 net/core/netdev_work.c:171)
[   30.388651][   T10]  ? netdev_work_sched (net/core/netdev_work.c:82)
[   30.388653][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.388655][   T10]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.388657][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.388661][   T10]  process_one_work (kernel/workqueue.c:3387)
[   30.388667][   T10]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   30.388669][   T10]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.388677][   T10]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   30.388681][   T10]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   30.388682][   T10]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   30.388685][   T10]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   30.388688][   T10]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   30.388689][   T10]  kthread (kernel/kthread.c:436)
[   30.388691][   T10]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.388694][   T10]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   30.388697][   T10]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.388700][   T10]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   30.388704][   T10]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.388707][   T10]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   30.388710][   T10]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   68.081177][ T1591] softirqs last disabled at (27348): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   68.081179][ T1591] Preemption disabled at:
| [   68.081180][ T1591] vprintk_emit (kernel/printk/printk.c:2471)
| [   68.081189][ T1591] Tainted: [W]=WARN
[   68.081190][ T1591] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   68.081191][ T1591] Call Trace:
[   68.081193][ T1591]  <TASK>
[   68.081199][ T1591]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   68.081205][ T1591]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   68.081206][ T1591]  __might_resched.cold (kernel/sched/core.c:9234)
[   68.081211][ T1591]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   68.081214][ T1591]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   68.081219][ T1591]  __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))
[   68.081222][ T1591]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.081228][ T1591]  ? 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)
[   68.081231][ T1591]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.081235][ T1591]  put_chars (drivers/char/virtio_console.c:1176)
[   68.081238][ T1591]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   68.081241][ T1591]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.081244][ T1591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.081247][ T1591]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.081252][ T1591]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   68.081255][ T1591]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   68.081257][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.081259][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.081264][ T1591]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   68.081265][ T1591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.081270][ T1591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.081274][ T1591]  console_emit_next_record (kernel/printk/printk.c:3183)
[   68.081278][ T1591]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   68.081279][ T1591]  ? 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))
[   68.081282][ T1591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.081284][ T1591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.081289][ T1591]  console_flush_one_record (kernel/printk/printk.c:3268)
[   68.081292][ T1591]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   68.081294][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.081299][ T1591]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   68.081302][ T1591]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   68.081303][ T1591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.081305][ T1591]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   68.081309][ T1591]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   68.081311][ T1591]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   68.081314][ T1591]  vprintk_emit (kernel/printk/printk.c:2479)
[   68.081318][ T1591]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   68.081320][ T1591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.081323][ T1591]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   68.081326][ T1591]  _printk (kernel/printk/printk.c:2504)
[   68.081330][ T1591]  ? snapshot_read.cold (user.c:?)
[   68.081334][ T1591]  ? br_multicast_flood (??:?) bridge
[   68.081347][ T1591]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   68.081349][ T1591]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   68.081350][ T1591]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   68.081355][ T1591] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   68.081366][ T1591] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   68.081375][ T1591] new_nbp (net/bridge/br_if.c:449) bridge
[   68.081384][ T1591] br_add_if (net/bridge/br_if.c:592) bridge
[   68.081392][ T1591]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   68.081396][ T1591]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   68.081402][ T1591]  do_set_master (net/core/rtnetlink.c:3071)
[   68.081408][ T1591]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   68.081411][ T1591]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   68.081415][ T1591]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   68.081416][ T1591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   68.081418][ T1591]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   68.081422][ T1591]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.081424][ T1591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.081426][ T1591]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.081429][ T1591]  ? kasan_save_stack (mm/kasan/common.c:58)
[   68.081432][ T1591]  ? kasan_save_stack (mm/kasan/common.c:57)
[   68.081434][ T1591]  ? kasan_save_track (mm/kasan/common.c:78)
[   68.081437][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.081439][ T1591]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   68.081442][ T1591]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   68.081446][ T1591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.081448][ T1591]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.081451][ T1591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.081453][ T1591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.081454][ T1591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.081456][ T1591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.081458][ T1591]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   68.081460][ T1591]  ? __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)
[   68.081464][ T1591]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   68.081466][ T1591]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.081469][ T1591]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   68.081471][ T1591]  ? nla_get_range_signed (lib/nlattr.c:270)
[   68.081477][ T1591]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   68.081482][ T1591]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   68.081488][ T1591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.081490][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.081494][ T1591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.081496][ T1591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.081499][ T1591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.081501][ T1591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.081505][ T1591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.081507][ T1591]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   68.081510][ T1591]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.081511][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.081516][ T1591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.081518][ T1591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.081522][ T1591]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   68.081524][ T1591]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.081527][ T1591]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   68.081533][ T1591]  ? 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))
[   68.081534][ T1591]  ? 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))
[   68.081539][ T1591]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   68.081542][ T1591]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   68.081545][ T1591]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   68.081549][ T1591]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   68.081553][ T1591]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   68.081555][ T1591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.081558][ T1591]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   68.081562][ T1591]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   68.081566][ T1591]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   68.081568][ T1591]  ? copy_msghdr_from_user (net/socket.c:2650)
[   68.081570][ T1591]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   68.081572][ T1591]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   68.081579][ T1591]  ___sys_sendmsg (net/socket.c:2767)
[   68.081582][ T1591]  ? copy_msghdr_from_user (net/socket.c:2619)
[   68.081598][ T1591]  __sys_sendmsg (net/socket.c:2799)
[   68.081601][ T1591]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   68.081608][ T1591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.081611][ T1591]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   68.081613][ T1591]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   68.081617][ T1591]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   68.081619][ T1591] RIP: 0033:0x7f90f0b3054e
[   68.081622][ T1591] 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
[   68.081624][ T1591] RSP: 002b:00007ffe746efda0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   68.081627][ T1591] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f90f0b3054e
[   68.081628][ T1591] RDX: 0000000000000000 RSI: 00007ffe746efe50 RDI: 0000000000000005
[   68.081629][ T1591] RBP: 00007ffe746efdb0 R08: 0000000000000000 R09: 0000000000000000
[   68.081630][ T1591] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917d7b
[   68.081631][ T1591] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe746f0520
| [   78.251774][ T1714] softirqs last disabled at (20098): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   78.251776][ T1714] Preemption disabled at:
| [   78.251777][ T1714] vprintk_emit (kernel/printk/printk.c:2471)
| [   78.251786][ T1714] Tainted: [W]=WARN
[   78.251787][ T1714] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.251788][ T1714] Call Trace:
[   78.251790][ T1714]  <TASK>
[   78.251792][ T1714]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   78.251797][ T1714]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   78.251799][ T1714]  __might_resched.cold (kernel/sched/core.c:9234)
[   78.251804][ T1714]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   78.251807][ T1714]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   78.251812][ T1714]  __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))
[   78.251815][ T1714]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.251821][ T1714]  ? 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)
[   78.251824][ T1714]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.251828][ T1714]  put_chars (drivers/char/virtio_console.c:1176)
[   78.251830][ T1714]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   78.251833][ T1714]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   78.251836][ T1714]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.251840][ T1714]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   78.251843][ T1714]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   78.251848][ T1714]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   78.251851][ T1714]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   78.251853][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.251855][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.251860][ T1714]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   78.251862][ T1714]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   78.251865][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.251867][ T1714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.251871][ T1714]  console_emit_next_record (kernel/printk/printk.c:3183)
[   78.251875][ T1714]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   78.251876][ T1714]  ? 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))
[   78.251879][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.251881][ T1714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.251885][ T1714]  console_flush_one_record (kernel/printk/printk.c:3268)
[   78.251889][ T1714]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   78.251891][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.251896][ T1714]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   78.251899][ T1714]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   78.251900][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.251902][ T1714]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   78.251906][ T1714]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   78.251908][ T1714]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   78.251911][ T1714]  vprintk_emit (kernel/printk/printk.c:2479)
[   78.251914][ T1714]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   78.251916][ T1714]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   78.251917][ T1714]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   78.251920][ T1714]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   78.251922][ T1714]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   78.251923][ T1714]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   78.251926][ T1714]  ? ___sys_sendmsg (net/socket.c:2767)
[   78.251927][ T1714]  ? __sys_sendmsg (net/socket.c:2799)
[   78.251931][ T1714]  _printk (kernel/printk/printk.c:2504)
[   78.251935][ T1714]  ? snapshot_read.cold (user.c:?)
[   78.251940][ T1714]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   78.251943][ T1714]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   78.251947][ T1714]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   78.251950][ T1714]  ? netdev_notice (net/core/dev.c:13194)
[   78.251954][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.251956][ T1714]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   78.251959][ T1714]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   78.251961][ T1714]  ? 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)
[   78.251964][ T1714]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   78.251969][ T1714]  dev_set_allmulti (net/core/dev_api.c:315)
[   78.251973][ T1714] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   78.251989][ T1714] br_del_if (net/bridge/br_if.c:732) bridge
[   78.251997][ T1714]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   78.252002][ T1714]  do_set_master (net/core/rtnetlink.c:3055)
[   78.252006][ T1714]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   78.252010][ T1714]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   78.252013][ T1714]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   78.252015][ T1714]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   78.252017][ T1714]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   78.252021][ T1714]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.252023][ T1714]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   78.252025][ T1714]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   78.252028][ T1714]  ? kasan_save_stack (mm/kasan/common.c:58)
[   78.252031][ T1714]  ? kasan_save_stack (mm/kasan/common.c:57)
[   78.252033][ T1714]  ? kasan_save_track (mm/kasan/common.c:78)
[   78.252036][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.252038][ T1714]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   78.252040][ T1714]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   78.252043][ T1714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.252045][ T1714]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   78.252048][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.252050][ T1714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.252052][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.252053][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.252055][ T1714]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   78.252057][ T1714]  ? __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)
[   78.252061][ T1714]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   78.252063][ T1714]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   78.252066][ T1714]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   78.252068][ T1714]  ? nla_get_range_signed (lib/nlattr.c:270)
[   78.252074][ T1714]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   78.252079][ T1714]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   78.252085][ T1714]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.252087][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.252091][ T1714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.252094][ T1714]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.252096][ T1714]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.252098][ T1714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.252102][ T1714]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.252104][ T1714]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   78.252107][ T1714]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   78.252108][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.252113][ T1714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.252115][ T1714]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.252120][ T1714]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   78.252122][ T1714]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   78.252125][ T1714]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   78.252131][ T1714]  ? 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))
[   78.252133][ T1714]  ? 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))
[   78.252137][ T1714]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   78.252141][ T1714]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   78.252143][ T1714]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   78.252148][ T1714]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   78.252152][ T1714]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   78.252153][ T1714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.252156][ T1714]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   78.252160][ T1714]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   78.252164][ T1714]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   78.252166][ T1714]  ? copy_msghdr_from_user (net/socket.c:2650)
[   78.252169][ T1714]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   78.252170][ T1714]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   78.252178][ T1714]  ___sys_sendmsg (net/socket.c:2767)
[   78.252181][ T1714]  ? copy_msghdr_from_user (net/socket.c:2619)
[   78.252196][ T1714]  __sys_sendmsg (net/socket.c:2799)
[   78.252199][ T1714]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   78.252205][ T1714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.252209][ T1714]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   78.252211][ T1714]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   78.252215][ T1714]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   78.252217][ T1714] RIP: 0033:0x7fe532e5554e
[   78.252220][ T1714] 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
[   78.252222][ T1714] RSP: 002b:00007ffd3fe18360 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   78.252225][ T1714] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe532e5554e
[   78.252226][ T1714] RDX: 0000000000000000 RSI: 00007ffd3fe18410 RDI: 0000000000000005
[   78.252227][ T1714] RBP: 00007ffd3fe18370 R08: 0000000000000000 R09: 0000000000000000
[   78.252228][ T1714] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917d85
[   78.252229][ T1714] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd3fe18ae0
| [   83.326587][   T68] softirqs last disabled at (89416): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   83.326597][   T68] Preemption disabled at:
| [   83.326598][   T68] 0x0
| [   83.326608][   T68] Tainted: [W]=WARN
[   83.326609][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   83.326611][   T68] Workqueue: events netdev_work_proc
[   83.326614][   T68] Call Trace:
[   83.326616][   T68]  <TASK>
[   83.326618][   T68]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   83.326623][   T68]  __might_resched.cold (kernel/sched/core.c:9234)
[   83.326628][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   83.326632][   T68]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   83.326637][   T68]  __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))
[   83.326640][   T68]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.326649][   T68]  ? 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)
[   83.326652][   T68]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.326655][   T68]  put_chars (drivers/char/virtio_console.c:1176)
[   83.326658][   T68]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   83.326666][   T68]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   83.326673][   T68]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   83.326677][   T68]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.326682][   T68]  console_emit_next_record (kernel/printk/printk.c:3183)
[   83.326685][   T68]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   83.326687][   T68]  ? 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))
[   83.326690][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.326693][   T68]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.326698][   T68]  console_flush_one_record (kernel/printk/printk.c:3268)
[   83.326702][   T68]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   83.326703][   T68]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.326709][   T68]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   83.326712][   T68]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   83.326713][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.326715][   T68]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   83.326719][   T68]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   83.326721][   T68]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   83.326725][   T68]  vprintk_emit (kernel/printk/printk.c:2479)
[   83.326729][   T68]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   83.326731][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.326733][   T68]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.326735][   T68]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.326740][   T68]  _printk (kernel/printk/printk.c:2504)
[   83.326744][   T68]  ? snapshot_read.cold (user.c:?)
[   83.326747][   T68]  ? kthread_stop_put (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:949 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:401 (discriminator 4) ./include/linux/refcount.h:389 (discriminator 4) ./include/linux/refcount.h:432 (discriminator 4) ./include/linux/refcount.h:450 (discriminator 4) ./include/linux/sched/task.h:131 (discriminator 4) kernel/kthread.c:782 (discriminator 4))
[   83.326755][   T68] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   83.326768][   T68] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   83.326779][   T68] br_device_event (net/bridge/br.c:111) bridge
[   83.326789][   T68]  ? 0xffffffffc0c00000
[   83.326795][   T68]  notifier_call_chain (kernel/notifier.c:85)
[   83.326801][   T68]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   83.326807][   T68]  ? netif_change_name (net/core/dev.c:1517)
[   83.326811][   T68]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   83.326813][   T68]  ? ref_tracker_alloc (lib/ref_tracker.c:283)
[   83.326817][   T68]  ? process_one_work (kernel/workqueue.c:3387)
[   83.326819][   T68]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   83.326820][   T68]  ? kthread (kernel/kthread.c:436)
[   83.326822][   T68]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   83.326825][   T68]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   83.326830][   T68]  netif_change_flags (net/core/dev.c:9882)
[   83.326834][   T68] vlan_dev_work (net/8021q/vlan_dev.c:1035) 8021q
[   83.326839][   T68]  netdev_work_proc (net/core/netdev_work.c:127 net/core/netdev_work.c:171)
[   83.326842][   T68]  ? netdev_work_sched (net/core/netdev_work.c:82)
[   83.326844][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.326846][   T68]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.326848][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.326852][   T68]  process_one_work (kernel/workqueue.c:3387)
[   83.326859][   T68]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   83.326861][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.326869][   T68]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   83.326873][   T68]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   83.326875][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   83.326878][   T68]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   83.326880][   T68]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   83.326882][   T68]  kthread (kernel/kthread.c:436)
[   83.326884][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   83.326887][   T68]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   83.326890][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   83.326894][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   83.326897][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   83.326901][   T68]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
llc_sap_open:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars