======================================
| [   11.251449][  T224] softirqs last disabled at (23643): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.251451][  T224] Preemption disabled at:
| [   11.251452][  T224] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.251461][  T224] Tainted: [W]=WARN
[   11.251462][  T224] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.251464][  T224] Call Trace:
[   11.251465][  T224]  <TASK>
[   11.251467][  T224]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.251473][  T224]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.251475][  T224]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.251479][  T224]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.251483][  T224]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.251488][  T224]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.251491][  T224]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.251496][  T224]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.251499][  T224]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.251502][  T224]  put_chars (drivers/char/virtio_console.c:1176)
[   11.251505][  T224]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.251506][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.251511][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.251514][  T224]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.251518][  T224]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.251521][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.251526][  T224]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.251528][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.251533][  T224]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.251537][  T224]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.251538][  T224]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.251541][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.251544][  T224]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.251547][  T224]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.251551][  T224]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.251553][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.251558][  T224]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.251561][  T224]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.251562][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.251565][  T224]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.251568][  T224]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.251570][  T224]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.251573][  T224]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.251577][  T224]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.251583][  T224]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.251587][  T224]  _printk (kernel/printk/printk.c:2504)
[   11.251591][  T224]  ? snapshot_read.cold (user.c:?)
[   11.251597][  T224]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   11.251600][  T224] 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
[   11.251603][  T224]  do_one_initcall (init/main.c:1357)
[   11.251605][  T224]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.251610][  T224]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.251613][  T224]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.251618][  T224]  do_init_module (kernel/module/main.c:3117)
[   11.251621][  T224]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.251626][  T224]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.251629][  T224]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.251633][  T224]  load_module (kernel/module/main.c:3593)
[   11.251640][  T224]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.251643][  T224]  ? __ia32_sys_fsconfig (??:?)
[   11.251646][  T224]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.251650][  T224]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.251652][  T224]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.251655][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.251659][  T224]  init_module_from_file (kernel/module/main.c:3790)
[   11.251662][  T224]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.251670][  T224]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.251673][  T224]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.251676][  T224]  idempotent_init_module (kernel/module/main.c:3802)
[   11.251680][  T224]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.251686][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.251688][  T224]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.251694][  T224]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.251696][  T224]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.251699][  T224]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.251701][  T224]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.251704][  T224]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.251707][  T224] RIP: 0033:0x7f81e734c37d
[   11.251710][  T224] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.251712][  T224] RSP: 002b:00007fff41be05b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.251715][  T224] RAX: ffffffffffffffda RBX: 00005655406c4810 RCX: 00007f81e734c37d
[   11.251716][  T224] RDX: 0000000000000000 RSI: 000056552397affd RDI: 0000000000000000
[   11.251717][  T224] RBP: 00007fff41be0650 R08: 0000000000000000 R09: 0000000000000000
[   11.251718][  T224] R10: 0000000000000000 R11: 0000000000000246 R12: 000056552397affd
[   11.251719][  T224] R13: 00005655406c4960 R14: 0000000000040000 R15: 0000000000000000
| [   12.557043][  T268] softirqs last disabled at (14242): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.557045][  T268] Preemption disabled at:
| [   12.557046][  T268] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.557055][  T268] Tainted: [W]=WARN
[   12.557056][  T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.557058][  T268] Call Trace:
[   12.557059][  T268]  <TASK>
[   12.557061][  T268]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.557067][  T268]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.557069][  T268]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.557074][  T268]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.557078][  T268]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.557083][  T268]  __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))
[   12.557085][  T268]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.557091][  T268]  ? 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)
[   12.557093][  T268]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.557096][  T268]  put_chars (drivers/char/virtio_console.c:1176)
[   12.557099][  T268]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.557103][  T268]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.557107][  T268]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.557109][  T268]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.557111][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557113][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557116][  T268]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.557118][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.557121][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557125][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.557129][  T268]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.557132][  T268]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.557134][  T268]  ? 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))
[   12.557137][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557139][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.557143][  T268]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.557147][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.557149][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557154][  T268]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.557156][  T268]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.557158][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557161][  T268]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.557165][  T268]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.557166][  T268]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.557169][  T268]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.557173][  T268]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.557175][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.557177][  T268]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.557183][  T268]  _printk (kernel/printk/printk.c:2504)
[   12.557187][  T268]  ? snapshot_read.cold (user.c:?)
[   12.557191][  T268]  ? br_multicast_flood (??:?) bridge
[   12.557203][  T268]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.557205][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.557206][  T268]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.557210][  T268] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.557220][  T268] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.557228][  T268] new_nbp (net/bridge/br_if.c:449) bridge
[   12.557238][  T268] br_add_if (net/bridge/br_if.c:592) bridge
[   12.557245][  T268]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.557249][  T268]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.557252][  T268]  ? __kernel_text_address (kernel/extable.c:79)
[   12.557255][  T268]  do_set_master (net/core/rtnetlink.c:3071)
[   12.557260][  T268]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.557263][  T268]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.557266][  T268]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.557267][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.557270][  T268]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.557273][  T268]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.557276][  T268]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.557278][  T268]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.557280][  T268]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.557283][  T268]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.557285][  T268]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.557287][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557289][  T268]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.557292][  T268]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.557296][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.557298][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.557301][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557303][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.557304][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557306][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557308][  T268]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.557312][  T268]  ? __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)
[   12.557314][  T268]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.557316][  T268]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.557319][  T268]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.557321][  T268]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.557326][  T268]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.557330][  T268]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.557335][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.557337][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557342][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.557343][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.557345][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.557347][  T268]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.557351][  T268]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.557352][  T268]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.557355][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.557357][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557361][  T268]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.557363][  T268]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.557366][  T268]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.557368][  T268]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.557370][  T268]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.557376][  T268]  ? 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))
[   12.557378][  T268]  ? 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))
[   12.557382][  T268]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.557385][  T268]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.557388][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.557392][  T268]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.557395][  T268]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.557399][  T268]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.557404][  T268]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.557406][  T268]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.557409][  T268]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.557410][  T268]  ? move_addr_to_kernel (net/socket.c:258)
[   12.557417][  T268]  ___sys_sendmsg (net/socket.c:2767)
[   12.557420][  T268]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.557435][  T268]  __sys_sendmsg (net/socket.c:2799)
[   12.557438][  T268]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.557444][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.557447][  T268]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.557450][  T268]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.557452][  T268]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.557455][  T268] RIP: 0033:0x7f132369f54e
[   12.557458][  T268] 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
[   12.557460][  T268] RSP: 002b:00007ffc38da6ca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.557463][  T268] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f132369f54e
[   12.557465][  T268] RDX: 0000000000000000 RSI: 00007ffc38da6d50 RDI: 0000000000000005
[   12.557465][  T268] RBP: 00007ffc38da6cb0 R08: 0000000000000000 R09: 0000000000000000
[   12.557466][  T268] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91372e
[   12.557467][  T268] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc38da7410
| [   22.919904][  T352] softirqs last disabled at (16808): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.919906][  T352] Preemption disabled at:
| [   22.919907][  T352] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.919916][  T352] Tainted: [W]=WARN
[   22.919917][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.919919][  T352] Call Trace:
[   22.919921][  T352]  <TASK>
[   22.919923][  T352]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.919929][  T352]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.919931][  T352]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.919942][  T352]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.919947][  T352]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.919952][  T352]  __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))
[   22.919954][  T352]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.919959][  T352]  ? 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)
[   22.919962][  T352]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.919965][  T352]  put_chars (drivers/char/virtio_console.c:1176)
[   22.919967][  T352]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.919969][  T352]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.919974][  T352]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.919979][  T352]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.919985][  T352]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.919987][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.919989][  T352]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.919993][  T352]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.919997][  T352]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.919999][  T352]  ? 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))
[   22.920002][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920004][  T352]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.920008][  T352]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.920012][  T352]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.920014][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.920019][  T352]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.920022][  T352]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.920023][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920026][  T352]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.920029][  T352]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.920033][  T352]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.920036][  T352]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.920040][  T352]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.920042][  T352]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.920044][  T352]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.920047][  T352]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.920048][  T352]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.920051][  T352]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.920052][  T352]  ? __sys_sendmsg (net/socket.c:2799)
[   22.920054][  T352]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.920059][  T352]  _printk (kernel/printk/printk.c:2504)
[   22.920063][  T352]  ? snapshot_read.cold (user.c:?)
[   22.920067][  T352]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.920070][  T352]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.920074][  T352]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.920076][  T352]  ? netdev_notice (net/core/dev.c:13194)
[   22.920080][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920082][  T352]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.920085][  T352]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.920086][  T352]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.920088][  T352]  ? 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)
[   22.920092][  T352]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.920096][  T352]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.920100][  T352] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   22.920113][  T352]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.920119][  T352] br_del_if (net/bridge/br_if.c:732) bridge
[   22.920126][  T352]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.920129][  T352]  do_set_master (net/core/rtnetlink.c:3055)
[   22.920133][  T352]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.920136][  T352]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.920139][  T352]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.920141][  T352]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.920143][  T352]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.920147][  T352]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.920149][  T352]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.920151][  T352]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.920154][  T352]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.920156][  T352]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.920158][  T352]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.920161][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.920163][  T352]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.920164][  T352]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.920168][  T352]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.920170][  T352]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.920173][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920175][  T352]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.920177][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920178][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920181][  T352]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.920183][  T352]  ? __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)
[   22.920186][  T352]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.920188][  T352]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.920191][  T352]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.920193][  T352]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.920198][  T352]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.920202][  T352]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.920208][  T352]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.920209][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.920214][  T352]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.920216][  T352]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.920218][  T352]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.920219][  T352]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.920223][  T352]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.920225][  T352]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.920228][  T352]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.920229][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.920234][  T352]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.920235][  T352]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.920239][  T352]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.920240][  T352]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.920243][  T352]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.920249][  T352]  ? 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))
[   22.920250][  T352]  ? 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))
[   22.920255][  T352]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.920258][  T352]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.920261][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.920265][  T352]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.920268][  T352]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.920272][  T352]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.920277][  T352]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.920279][  T352]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.920282][  T352]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.920283][  T352]  ? move_addr_to_kernel (net/socket.c:258)
[   22.920290][  T352]  ___sys_sendmsg (net/socket.c:2767)
[   22.920293][  T352]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.920308][  T352]  __sys_sendmsg (net/socket.c:2799)
[   22.920311][  T352]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.920317][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.920320][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.920322][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.920325][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.920328][  T352] RIP: 0033:0x7fb3a049d54e
[   22.920331][  T352] 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
[   22.920333][  T352] RSP: 002b:00007ffce9c1e9c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.920336][  T352] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb3a049d54e
[   22.920337][  T352] RDX: 0000000000000000 RSI: 00007ffce9c1ea70 RDI: 0000000000000005
[   22.920338][  T352] RBP: 00007ffce9c1e9d0 R08: 0000000000000000 R09: 0000000000000000
[   22.920339][  T352] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913739
[   22.920340][  T352] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce9c1f130
| [   25.056280][  T356] softirqs last disabled at (14326): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   25.056282][  T356] Preemption disabled at:
| [   25.056283][  T356] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.056292][  T356] Tainted: [W]=WARN
[   25.056293][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.056295][  T356] Call Trace:
[   25.056297][  T356]  <TASK>
[   25.056299][  T356]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.056305][  T356]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.056307][  T356]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.056311][  T356]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.056316][  T356]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.056321][  T356]  __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))
[   25.056323][  T356]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.056328][  T356]  ? 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)
[   25.056331][  T356]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.056334][  T356]  put_chars (drivers/char/virtio_console.c:1176)
[   25.056336][  T356]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   25.056339][  T356]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.056342][  T356]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.056346][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.056348][  T356]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.056352][  T356]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.056355][  T356]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   25.056356][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056358][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056362][  T356]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.056364][  T356]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   25.056367][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056369][  T356]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.056373][  T356]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.056377][  T356]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.056379][  T356]  ? 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))
[   25.056382][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056384][  T356]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.056388][  T356]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.056392][  T356]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.056394][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056399][  T356]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.056402][  T356]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.056403][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056406][  T356]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.056409][  T356]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.056411][  T356]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.056414][  T356]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.056418][  T356]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.056421][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.056425][  T356]  _printk (kernel/printk/printk.c:2504)
[   25.056429][  T356]  ? snapshot_read.cold (user.c:?)
[   25.056433][  T356]  ? br_multicast_flood (??:?) bridge
[   25.056446][  T356]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.056447][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.056448][  T356]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.056453][  T356] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   25.056463][  T356] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   25.056471][  T356] new_nbp (net/bridge/br_if.c:449) bridge
[   25.056480][  T356] br_add_if (net/bridge/br_if.c:592) bridge
[   25.056487][  T356]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   25.056491][  T356]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   25.056494][  T356]  ? __kernel_text_address (kernel/extable.c:79)
[   25.056498][  T356]  do_set_master (net/core/rtnetlink.c:3071)
[   25.056502][  T356]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.056506][  T356]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.056509][  T356]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.056510][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.056512][  T356]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.056515][  T356]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.056518][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.056519][  T356]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.056522][  T356]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.056525][  T356]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.056527][  T356]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.056529][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056531][  T356]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   25.056534][  T356]  ? ___sys_sendmsg (net/socket.c:2757)
[   25.056538][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.056540][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.056543][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056545][  T356]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.056546][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056548][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056550][  T356]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.056554][  T356]  ? __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)
[   25.056557][  T356]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.056559][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.056563][  T356]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.056564][  T356]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.056569][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.056574][  T356]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.056579][  T356]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.056581][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056585][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.056587][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.056589][  T356]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.056590][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.056594][  T356]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.056596][  T356]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.056599][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.056600][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056604][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.056606][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.056609][  T356]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.056611][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.056614][  T356]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.056620][  T356]  ? 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))
[   25.056621][  T356]  ? 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))
[   25.056625][  T356]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.056629][  T356]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.056631][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.056635][  T356]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.056639][  T356]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.056643][  T356]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   25.056648][  T356]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   25.056650][  T356]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.056652][  T356]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   25.056654][  T356]  ? move_addr_to_kernel (net/socket.c:258)
[   25.056661][  T356]  ___sys_sendmsg (net/socket.c:2767)
[   25.056664][  T356]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.056679][  T356]  __sys_sendmsg (net/socket.c:2799)
[   25.056681][  T356]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.056687][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.056691][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.056693][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.056696][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.056699][  T356] RIP: 0033:0x7fece371954e
[   25.056703][  T356] 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
[   25.056705][  T356] RSP: 002b:00007fffcd42f050 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.056707][  T356] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fece371954e
[   25.056709][  T356] RDX: 0000000000000000 RSI: 00007fffcd42f100 RDI: 0000000000000005
[   25.056710][  T356] RBP: 00007fffcd42f060 R08: 0000000000000000 R09: 0000000000000000
[   25.056710][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91373b
[   25.056711][  T356] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffcd42f7c0
| [   29.741564][  T409] softirqs last disabled at (25742): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   29.741566][  T409] Preemption disabled at:
| [   29.741567][  T409] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.741577][  T409] Tainted: [W]=WARN
[   29.741578][  T409] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.741580][  T409] Call Trace:
[   29.741581][  T409]  <TASK>
[   29.741583][  T409]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.741588][  T409]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.741591][  T409]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.741595][  T409]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.741599][  T409]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.741605][  T409]  __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))
[   29.741607][  T409]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.741612][  T409]  ? 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)
[   29.741615][  T409]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.741618][  T409]  put_chars (drivers/char/virtio_console.c:1176)
[   29.741621][  T409]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.741622][  T409]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.741627][  T409]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.741632][  T409]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.741638][  T409]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.741641][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741643][  T409]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.741647][  T409]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.741651][  T409]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.741653][  T409]  ? 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))
[   29.741656][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741658][  T409]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.741662][  T409]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.741666][  T409]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.741668][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.741673][  T409]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.741676][  T409]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.741678][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741680][  T409]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.741684][  T409]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.741686][  T409]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.741689][  T409]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.741693][  T409]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.741695][  T409]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.741696][  T409]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.741699][  T409]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.741700][  T409]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.741703][  T409]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.741705][  T409]  ? __sys_sendmsg (net/socket.c:2799)
[   29.741706][  T409]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.741711][  T409]  _printk (kernel/printk/printk.c:2504)
[   29.741715][  T409]  ? snapshot_read.cold (user.c:?)
[   29.741720][  T409]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.741723][  T409]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.741726][  T409]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.741729][  T409]  ? netdev_notice (net/core/dev.c:13194)
[   29.741733][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741735][  T409]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.741738][  T409]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.741739][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.741741][  T409]  ? 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)
[   29.741745][  T409]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.741749][  T409]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.741753][  T409] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   29.741766][  T409]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.741772][  T409] br_del_if (net/bridge/br_if.c:732) bridge
[   29.741780][  T409]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.741783][  T409]  do_set_master (net/core/rtnetlink.c:3055)
[   29.741787][  T409]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.741790][  T409]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.741793][  T409]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.741795][  T409]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.741797][  T409]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.741800][  T409]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.741803][  T409]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.741805][  T409]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.741807][  T409]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.741810][  T409]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.741812][  T409]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.741815][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.741816][  T409]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   29.741818][  T409]  ? ___sys_sendmsg (net/socket.c:2757)
[   29.741822][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.741824][  T409]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.741826][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741829][  T409]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.741830][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741832][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741834][  T409]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.741837][  T409]  ? __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)
[   29.741840][  T409]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.741842][  T409]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.741845][  T409]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.741847][  T409]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.741852][  T409]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.741857][  T409]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.741862][  T409]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.741864][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.741868][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.741870][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.741872][  T409]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.741874][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.741878][  T409]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.741880][  T409]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.741883][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.741884][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.741888][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.741890][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.741893][  T409]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.741895][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.741898][  T409]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.741904][  T409]  ? 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))
[   29.741905][  T409]  ? 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))
[   29.741910][  T409]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.741913][  T409]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.741916][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.741920][  T409]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.741924][  T409]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.741927][  T409]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   29.741933][  T409]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.741935][  T409]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.741937][  T409]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.741939][  T409]  ? move_addr_to_kernel (net/socket.c:258)
[   29.741946][  T409]  ___sys_sendmsg (net/socket.c:2767)
[   29.741949][  T409]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.741970][  T409]  __sys_sendmsg (net/socket.c:2799)
[   29.741973][  T409]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.741979][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.741983][  T409]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.741984][  T409]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.741987][  T409]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.741990][  T409] RIP: 0033:0x7f7a7ba5d54e
[   29.741993][  T409] 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
[   29.741995][  T409] RSP: 002b:00007ffc22b84af0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.741998][  T409] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7a7ba5d54e
[   29.742000][  T409] RDX: 0000000000000000 RSI: 00007ffc22b84ba0 RDI: 0000000000000005
[   29.742001][  T409] RBP: 00007ffc22b84b00 R08: 0000000000000000 R09: 0000000000000000
[   29.742001][  T409] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913740


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