======================================
| [   10.576534][  T193] softirqs last disabled at (69625): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.576537][  T193] Preemption disabled at:
| [   10.576537][  T193] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.576547][  T193] Tainted: [W]=WARN
[   10.576548][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.576550][  T193] Call Trace:
[   10.576551][  T193]  <TASK>
[   10.576553][  T193]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.576558][  T193]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.576560][  T193]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.576564][  T193]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.576567][  T193]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.576572][  T193]  __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))
[   10.576575][  T193]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.576581][  T193]  ? 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)
[   10.576584][  T193]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.576587][  T193]  put_chars (drivers/char/virtio_console.c:1176)
[   10.576590][  T193]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.576593][  T193]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.576598][  T193]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.576605][  T193]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.576608][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.576611][  T193]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.576615][  T193]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.576618][  T193]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.576620][  T193]  ? 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))
[   10.576622][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.576624][  T193]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.576628][  T193]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.576631][  T193]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.576633][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.576638][  T193]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.576640][  T193]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.576642][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.576643][  T193]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.576647][  T193]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.576649][  T193]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.576652][  T193]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.576656][  T193]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.576657][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.576660][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.576663][  T193]  ? 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
[   10.576667][  T193]  _printk (kernel/printk/printk.c:2504)
[   10.576670][  T193]  ? snapshot_read.cold (user.c:?)
[   10.576672][  T193]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   10.576677][  T193]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   10.576681][  T193]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   10.576684][  T193] br_init (bridge.mod.c:?) bridge
[   10.576698][  T193]  do_one_initcall (init/main.c:1357)
[   10.576702][  T193]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.576707][  T193]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.576709][  T193]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.576714][  T193]  do_init_module (kernel/module/main.c:3117)
[   10.576717][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.576720][  T193]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.576723][  T193]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.576727][  T193]  load_module (kernel/module/main.c:3593)
[   10.576734][  T193]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.576738][  T193]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.576742][  T193]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.576745][  T193]  init_module_from_file (kernel/module/main.c:3790)
[   10.576748][  T193]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   10.576755][  T193]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.576759][  T193]  ? 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)
[   10.576762][  T193]  idempotent_init_module (kernel/module/main.c:3802)
[   10.576765][  T193]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.576771][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.576773][  T193]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.576778][  T193]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.576780][  T193]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.576783][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.576785][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.576788][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.576791][  T193] RIP: 0033:0x7ff824c4e37d
[   10.576794][  T193] 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
[   10.576796][  T193] RSP: 002b:00007ffeec2a4888 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.576798][  T193] RAX: ffffffffffffffda RBX: 000055a1309f6810 RCX: 00007ff824c4e37d
[   10.576799][  T193] RDX: 0000000000000000 RSI: 000055a104894ffd RDI: 0000000000000002
[   10.576800][  T193] RBP: 00007ffeec2a4920 R08: 0000000000000000 R09: 0000000000000000
[   10.576801][  T193] R10: 0000000000000000 R11: 0000000000000246 R12: 000055a104894ffd
[   10.576802][  T193] R13: 000055a1309f69c0 R14: 0000000000040000 R15: 0000000000000000
| [   12.908975][   T12] softirqs last disabled at (4720): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   12.908977][   T12] Preemption disabled at:
| [   12.908978][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.908987][   T12] Tainted: [W]=WARN
[   12.908988][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.908990][   T12] Workqueue: netns cleanup_net
[   12.908994][   T12] Call Trace:
[   12.908995][   T12]  <TASK>
[   12.908997][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.909002][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.909004][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.909008][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.909012][   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)
[   12.909017][   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))
[   12.909020][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.909026][   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)
[   12.909029][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.909033][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   12.909036][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.909039][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.909045][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.909048][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.909054][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.909056][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.909063][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.909066][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.909067][   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))
[   12.909070][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.909072][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.909077][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.909081][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.909082][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.909088][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.909090][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.909092][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.909093][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.909097][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.909099][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.909102][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.909106][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.909107][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   12.909109][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   12.909110][   T12]  ? kthread (kernel/kthread.c:436)
[   12.909113][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   12.909116][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   12.909121][   T12]  _printk (kernel/printk/printk.c:2504)
[   12.909125][   T12]  ? snapshot_read.cold (user.c:?)
[   12.909129][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.909133][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.909137][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.909139][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   12.909144][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.909146][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   12.909148][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   12.909150][   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)
[   12.909153][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   12.909158][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   12.909162][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   12.909179][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   12.909188][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   12.909197][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   12.909200][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.909205][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   12.909207][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.909210][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   12.909215][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   12.909218][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.909222][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.909224][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.909227][   T12]  process_one_work (kernel/workqueue.c:3387)
[   12.909233][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   12.909236][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.909248][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   12.909255][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   12.909256][   T12]  kthread (kernel/kthread.c:436)
[   12.909258][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.909261][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   12.909264][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.909267][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   12.909271][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.909274][   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