======================================
| [   10.316846][  T192] softirqs last disabled at (89607): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.316848][  T192] Preemption disabled at:
| [   10.316849][  T192] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.316857][  T192] Tainted: [W]=WARN
[   10.316858][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.316860][  T192] Call Trace:
[   10.316861][  T192]  <TASK>
[   10.316863][  T192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.316867][  T192]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.316869][  T192]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.316874][  T192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.316877][  T192]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.316882][  T192]  __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))
[   10.316884][  T192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.316890][  T192]  ? 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)
[   10.316893][  T192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.316897][  T192]  put_chars (drivers/char/virtio_console.c:1176)
[   10.316900][  T192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.316903][  T192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.316908][  T192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.316914][  T192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.316917][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.316920][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.316924][  T192]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.316928][  T192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.316929][  T192]  ? 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))
[   10.316932][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.316933][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.316937][  T192]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.316941][  T192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.316942][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.316948][  T192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.316950][  T192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.316951][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.316953][  T192]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.316957][  T192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.316959][  T192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.316961][  T192]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.316965][  T192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.316966][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.316969][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.316972][  T192]  ? 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
[   10.316975][  T192]  _printk (kernel/printk/printk.c:2504)
[   10.316979][  T192]  ? snapshot_read.cold (user.c:?)
[   10.316981][  T192]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   10.316986][  T192]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   10.316990][  T192]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   10.316993][  T192] br_init (bridge.mod.c:?) bridge
[   10.317006][  T192]  do_one_initcall (init/main.c:1357)
[   10.317009][  T192]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.317014][  T192]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.317016][  T192]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.317021][  T192]  do_init_module (kernel/module/main.c:3117)
[   10.317024][  T192]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.317028][  T192]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.317030][  T192]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.317034][  T192]  load_module (kernel/module/main.c:3593)
[   10.317041][  T192]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.317045][  T192]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.317049][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.317053][  T192]  init_module_from_file (kernel/module/main.c:3790)
[   10.317055][  T192]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   10.317063][  T192]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.317066][  T192]  ? 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)
[   10.317070][  T192]  idempotent_init_module (kernel/module/main.c:3802)
[   10.317073][  T192]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.317078][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.317080][  T192]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.317085][  T192]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.317087][  T192]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.317090][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.317092][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.317095][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.317098][  T192] RIP: 0033:0x7f460fc4b37d
[   10.317101][  T192] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.317102][  T192] RSP: 002b:00007ffd3f26ae18 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.317105][  T192] RAX: ffffffffffffffda RBX: 000055817a97c810 RCX: 00007f460fc4b37d
[   10.317106][  T192] RDX: 0000000000000000 RSI: 0000558149eabffd RDI: 0000000000000002
[   10.317107][  T192] RBP: 00007ffd3f26aeb0 R08: 0000000000000000 R09: 0000000000000000
[   10.317108][  T192] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558149eabffd
[   10.317108][  T192] R13: 000055817a97c9c0 R14: 0000000000040000 R15: 0000000000000000
| [   12.676693][   T12] softirqs last disabled at (3820): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   12.676695][   T12] Preemption disabled at:
| [   12.676696][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.676705][   T12] Tainted: [W]=WARN
[   12.676706][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.676708][   T12] Workqueue: netns cleanup_net
[   12.676711][   T12] Call Trace:
[   12.676713][   T12]  <TASK>
[   12.676715][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.676720][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.676722][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.676726][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.676730][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.676735][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.676738][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.676744][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.676747][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.676750][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   12.676753][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.676757][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.676762][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.676765][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.676771][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.676774][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.676780][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.676784][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.676785][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.676788][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.676790][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.676794][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.676798][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.676799][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.676805][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.676808][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.676809][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.676811][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.676815][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.676817][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.676820][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.676823][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.676825][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   12.676827][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   12.676828][   T12]  ? kthread (kernel/kthread.c:436)
[   12.676831][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   12.676834][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   12.676839][   T12]  _printk (kernel/printk/printk.c:2504)
[   12.676842][   T12]  ? snapshot_read.cold (user.c:?)
[   12.676847][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.676850][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.676854][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.676857][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   12.676861][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.676863][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   12.676866][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   12.676868][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.676871][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   12.676876][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   12.676881][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   12.676898][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   12.676908][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   12.676916][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   12.676920][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.676925][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   12.676926][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.676930][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   12.676935][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   12.676938][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.676942][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.676944][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.676947][   T12]  process_one_work (kernel/workqueue.c:3387)
[   12.676954][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   12.676956][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.676964][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   12.676971][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   12.676973][   T12]  kthread (kernel/kthread.c:436)
[   12.676975][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.676978][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   12.676981][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.676984][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   12.676987][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.676991][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars