======================================
| [   11.589271][  T237] softirqs last disabled at (23407): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.589274][  T237] Preemption disabled at:
| [   11.589274][  T237] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.589283][  T237] Tainted: [W]=WARN
[   11.589284][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.589286][  T237] Call Trace:
[   11.589288][  T237]  <TASK>
[   11.589289][  T237]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.589295][  T237]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.589297][  T237]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.589302][  T237]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.589307][  T237]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.589312][  T237]  __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))
[   11.589315][  T237]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.589321][  T237]  ? 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)
[   11.589323][  T237]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.589326][  T237]  put_chars (drivers/char/virtio_console.c:1176)
[   11.589329][  T237]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.589331][  T237]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.589335][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.589337][  T237]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.589342][  T237]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.589345][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.589349][  T237]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.589352][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.589357][  T237]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.589360][  T237]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.589362][  T237]  ? 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))
[   11.589365][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.589367][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.589371][  T237]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.589375][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.589377][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.589382][  T237]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.589384][  T237]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.589386][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.589388][  T237]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.589392][  T237]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.589394][  T237]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.589397][  T237]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.589401][  T237]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.589406][  T237]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.589410][  T237]  _printk (kernel/printk/printk.c:2504)
[   11.589413][  T237]  ? snapshot_read.cold (user.c:?)
[   11.589419][  T237]  ? 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)
[   11.589423][  T237] 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
[   11.589426][  T237]  do_one_initcall (init/main.c:1357)
[   11.589428][  T237]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.589433][  T237]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.589436][  T237]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.589440][  T237]  do_init_module (kernel/module/main.c:3117)
[   11.589444][  T237]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.589448][  T237]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.589451][  T237]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.589455][  T237]  load_module (kernel/module/main.c:3593)
[   11.589462][  T237]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.589466][  T237]  ? __ia32_sys_fsconfig (??:?)
[   11.589469][  T237]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.589473][  T237]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.589476][  T237]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.589480][  T237]  init_module_from_file (kernel/module/main.c:3790)
[   11.589483][  T237]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.589490][  T237]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.589494][  T237]  ? 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)
[   11.589497][  T237]  idempotent_init_module (kernel/module/main.c:3802)
[   11.589500][  T237]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.589506][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.589513][  T237]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.589518][  T237]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.589521][  T237]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.589524][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.589526][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.589529][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.589531][  T237] RIP: 0033:0x7fd9dcd3737d
[   11.589535][  T237] 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
[   11.589536][  T237] RSP: 002b:00007ffc1f1eb098 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.589539][  T237] RAX: ffffffffffffffda RBX: 000055caeb53d810 RCX: 00007fd9dcd3737d
[   11.589541][  T237] RDX: 0000000000000000 RSI: 000055cac33d5ffd RDI: 0000000000000000
[   11.589541][  T237] RBP: 00007ffc1f1eb130 R08: 0000000000000000 R09: 0000000000000000
[   11.589542][  T237] R10: 0000000000000000 R11: 0000000000000246 R12: 000055cac33d5ffd
[   11.589543][  T237] R13: 000055caeb53d960 R14: 0000000000040000 R15: 0000000000000000
| [   12.926473][  T283] softirqs last disabled at (14672): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.926476][  T283] Preemption disabled at:
| [   12.926476][  T283] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.926486][  T283] Tainted: [W]=WARN
[   12.926487][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.926488][  T283] Call Trace:
[   12.926490][  T283]  <TASK>
[   12.926492][  T283]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.926497][  T283]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.926500][  T283]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.926504][  T283]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.926508][  T283]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.926518][  T283]  __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))
[   12.926521][  T283]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.926526][  T283]  ? 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)
[   12.926529][  T283]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.926532][  T283]  put_chars (drivers/char/virtio_console.c:1176)
[   12.926535][  T283]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.926539][  T283]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.926543][  T283]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.926546][  T283]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.926548][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926549][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926553][  T283]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.926555][  T283]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.926558][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926562][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.926566][  T283]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.926570][  T283]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.926572][  T283]  ? 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))
[   12.926575][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926577][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.926581][  T283]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.926585][  T283]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.926587][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926592][  T283]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.926595][  T283]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.926597][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926599][  T283]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.926602][  T283]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.926604][  T283]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.926607][  T283]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.926611][  T283]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.926614][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.926616][  T283]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.926620][  T283]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.926623][  T283]  _printk (kernel/printk/printk.c:2504)
[   12.926627][  T283]  ? snapshot_read.cold (user.c:?)
[   12.926631][  T283]  ? br_multicast_flood (??:?) bridge
[   12.926643][  T283]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.926645][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.926646][  T283]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.926650][  T283] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.926660][  T283] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.926669][  T283] new_nbp (net/bridge/br_if.c:449) bridge
[   12.926678][  T283] br_add_if (net/bridge/br_if.c:592) bridge
[   12.926686][  T283]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.926690][  T283]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.926693][  T283]  ? __kernel_text_address (kernel/extable.c:79)
[   12.926698][  T283]  do_set_master (net/core/rtnetlink.c:3071)
[   12.926703][  T283]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.926706][  T283]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.926709][  T283]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.926710][  T283]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.926713][  T283]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.926716][  T283]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.926719][  T283]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.926721][  T283]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.926723][  T283]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.926726][  T283]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.926728][  T283]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.926731][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926733][  T283]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.926736][  T283]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.926740][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.926742][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.926745][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926747][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.926748][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926750][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926753][  T283]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.926756][  T283]  ? __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)
[   12.926758][  T283]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.926760][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.926763][  T283]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.926765][  T283]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.926770][  T283]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.926775][  T283]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.926780][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.926782][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926786][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.926788][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.926790][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.926792][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.926796][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.926798][  T283]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.926801][  T283]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.926802][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926807][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.926808][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.926812][  T283]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.926814][  T283]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.926817][  T283]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.926823][  T283]  ? 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))
[   12.926824][  T283]  ? 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))
[   12.926828][  T283]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.926832][  T283]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.926835][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.926839][  T283]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.926842][  T283]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.926846][  T283]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.926852][  T283]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.926854][  T283]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.926856][  T283]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.926858][  T283]  ? move_addr_to_kernel (net/socket.c:258)
[   12.926865][  T283]  ___sys_sendmsg (net/socket.c:2767)
[   12.926868][  T283]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.926883][  T283]  __sys_sendmsg (net/socket.c:2799)
[   12.926886][  T283]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.926892][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.926896][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.926898][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.926901][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.926903][  T283] RIP: 0033:0x7f2518e5354e
[   12.926907][  T283] 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
[   12.926909][  T283] RSP: 002b:00007ffd7c7ac5a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.926911][  T283] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2518e5354e
[   12.926913][  T283] RDX: 0000000000000000 RSI: 00007ffd7c7ac650 RDI: 0000000000000005
[   12.926914][  T283] RBP: 00007ffd7c7ac5b0 R08: 0000000000000000 R09: 0000000000000000
[   12.926914][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91590e
[   12.926915][  T283] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd7c7acd10
| [   14.525740][  T337] softirqs last disabled at (14606): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.525743][  T337] Preemption disabled at:
| [   14.525743][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.525753][  T337] Tainted: [W]=WARN
[   14.525754][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.525756][  T337] Call Trace:
[   14.525757][  T337]  <TASK>
[   14.525759][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.525765][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.525767][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.525771][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.525776][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.525781][  T337]  __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))
[   14.525784][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.525789][  T337]  ? 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)
[   14.525792][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.525795][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   14.525797][  T337]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.525799][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.525802][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.525806][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.525809][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.525812][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.525815][  T337]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.525817][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525818][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525822][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.525824][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.525828][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525830][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.525834][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.525838][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.525840][  T337]  ? 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))
[   14.525843][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525845][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.525849][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.525854][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.525855][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525861][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.525864][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.525865][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.525868][  T337]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.525872][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.525873][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.525877][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.525881][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.525884][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.525886][  T337]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.525890][  T337]  _printk (kernel/printk/printk.c:2504)
[   14.525894][  T337]  ? snapshot_read.cold (user.c:?)
[   14.525898][  T337]  ? br_multicast_flood (??:?) bridge
[   14.525911][  T337]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.525912][  T337]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.525913][  T337]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.525918][  T337] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.525929][  T337] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.525937][  T337] new_nbp (net/bridge/br_if.c:449) bridge
[   14.525947][  T337] br_add_if (net/bridge/br_if.c:592) bridge
[   14.525954][  T337]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.525958][  T337]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.525961][  T337]  ? __kernel_text_address (kernel/extable.c:79)
[   14.525965][  T337]  do_set_master (net/core/rtnetlink.c:3071)
[   14.525970][  T337]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.525973][  T337]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.525976][  T337]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.525977][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.525979][  T337]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.525983][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.525985][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.525987][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.525990][  T337]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.525993][  T337]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.525995][  T337]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.525998][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.525999][  T337]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   14.526002][  T337]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.526007][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.526009][  T337]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.526011][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.526014][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.526015][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.526017][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.526020][  T337]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.526023][  T337]  ? __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)
[   14.526027][  T337]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.526029][  T337]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.526032][  T337]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.526034][  T337]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.526039][  T337]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.526044][  T337]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.526049][  T337]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.526051][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.526055][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.526057][  T337]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.526060][  T337]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.526061][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.526065][  T337]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.526067][  T337]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.526070][  T337]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.526071][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.526076][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.526078][  T337]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.526081][  T337]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.526083][  T337]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.526086][  T337]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.526092][  T337]  ? 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))
[   14.526093][  T337]  ? 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))
[   14.526097][  T337]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.526101][  T337]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.526104][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.526108][  T337]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.526111][  T337]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.526115][  T337]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.526121][  T337]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.526123][  T337]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.526125][  T337]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.526127][  T337]  ? move_addr_to_kernel (net/socket.c:258)
[   14.526134][  T337]  ___sys_sendmsg (net/socket.c:2767)
[   14.526137][  T337]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.526152][  T337]  __sys_sendmsg (net/socket.c:2799)
[   14.526155][  T337]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.526161][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.526165][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.526167][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.526170][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.526173][  T337] RIP: 0033:0x7fbb58bd754e
[   14.526176][  T337] 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
[   14.526178][  T337] RSP: 002b:00007ffde9433f80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.526181][  T337] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbb58bd754e
[   14.526182][  T337] RDX: 0000000000000000 RSI: 00007ffde9434030 RDI: 0000000000000005
[   14.526183][  T337] RBP: 00007ffde9433f90 R08: 0000000000000000 R09: 0000000000000000
[   14.526184][  T337] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91590f
[   14.526185][  T337] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde94346f0
| [   15.803974][  T384] softirqs last disabled at (11326): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.803976][  T384] Preemption disabled at:
| [   15.803977][  T384] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.803986][  T384] Tainted: [W]=WARN
[   15.803987][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.803989][  T384] Call Trace:
[   15.803990][  T384]  <TASK>
[   15.803991][  T384]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.803997][  T384]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.803999][  T384]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.804004][  T384]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.804008][  T384]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.804013][  T384]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   15.804015][  T384]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.804020][  T384]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.804023][  T384]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.804026][  T384]  put_chars (drivers/char/virtio_console.c:1176)
[   15.804028][  T384]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.804030][  T384]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.804033][  T384]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.804037][  T384]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.804039][  T384]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.804043][  T384]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.804045][  T384]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.804047][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804049][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804053][  T384]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.804055][  T384]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.804058][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804061][  T384]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.804065][  T384]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.804068][  T384]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.804070][  T384]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   15.804073][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804076][  T384]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.804080][  T384]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.804084][  T384]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.804086][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804091][  T384]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.804093][  T384]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.804095][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804098][  T384]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.804101][  T384]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.804103][  T384]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.804106][  T384]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.804110][  T384]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.804113][  T384]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.804115][  T384]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.804119][  T384]  _printk (kernel/printk/printk.c:2504)
[   15.804122][  T384]  ? snapshot_read.cold (user.c:?)
[   15.804126][  T384]  ? br_multicast_flood (??:?) bridge
[   15.804139][  T384]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.804140][  T384]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.804142][  T384]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.804146][  T384] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.804156][  T384] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.804165][  T384] new_nbp (net/bridge/br_if.c:449) bridge
[   15.804174][  T384] br_add_if (net/bridge/br_if.c:592) bridge
[   15.804181][  T384]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.804186][  T384]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.804188][  T384]  ? __kernel_text_address (kernel/extable.c:79)
[   15.804192][  T384]  do_set_master (net/core/rtnetlink.c:3071)
[   15.804197][  T384]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.804200][  T384]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.804203][  T384]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.804204][  T384]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.804206][  T384]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.804209][  T384]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.804212][  T384]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.804214][  T384]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.804216][  T384]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.804219][  T384]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.804221][  T384]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.804223][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804225][  T384]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.804228][  T384]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.804232][  T384]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.804234][  T384]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.804237][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804239][  T384]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.804240][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804242][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804244][  T384]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.804248][  T384]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   15.804251][  T384]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.804253][  T384]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.804256][  T384]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.804258][  T384]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.804263][  T384]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.804268][  T384]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.804273][  T384]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.804275][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804279][  T384]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.804281][  T384]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.804283][  T384]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.804284][  T384]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.804288][  T384]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.804290][  T384]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.804293][  T384]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.804294][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804298][  T384]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.804305][  T384]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.804308][  T384]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.804310][  T384]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.804313][  T384]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.804319][  T384]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.804320][  T384]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.804324][  T384]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.804328][  T384]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.804330][  T384]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804334][  T384]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.804338][  T384]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.804342][  T384]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.804347][  T384]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.804349][  T384]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.804351][  T384]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.804353][  T384]  ? move_addr_to_kernel (net/socket.c:258)
[   15.804360][  T384]  ___sys_sendmsg (net/socket.c:2767)
[   15.804363][  T384]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.804378][  T384]  __sys_sendmsg (net/socket.c:2799)
[   15.804380][  T384]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.804386][  T384]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804390][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.804392][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.804395][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.804397][  T384] RIP: 0033:0x7f18d19c254e
[   15.804401][  T384] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.804403][  T384] RSP: 002b:00007ffd62493a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.804405][  T384] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f18d19c254e
[   15.804407][  T384] RDX: 0000000000000000 RSI: 00007ffd62493b10 RDI: 0000000000000005
[   15.804408][  T384] RBP: 00007ffd62493a70 R08: 0000000000000000 R09: 0000000000000000
[   15.804409][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915911
[   15.804409][  T384] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd624941d0
| [   25.751546][   T70] softirqs last disabled at (49830): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan
| [   25.751550][   T70] Preemption disabled at:
| [   25.751551][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.751560][   T70] Tainted: [W]=WARN
[   25.751561][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.751563][   T70] Workqueue: netns cleanup_net
[   25.751572][   T70] Call Trace:
[   25.751573][   T70]  <TASK>
[   25.751575][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.751581][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.751584][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.751588][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.751592][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.751598][   T70]  __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))
[   25.751600][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.751606][   T70]  ? 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)
[   25.751608][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.751611][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   25.751614][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.751617][   T70]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   25.751622][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.751625][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.751626][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.751631][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.751632][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   25.751636][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.751640][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.751644][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.751648][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.751649][   T70]  ? 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))
[   25.751653][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.751655][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.751659][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.751663][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.751665][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.751670][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.751673][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.751675][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.751677][   T70]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.751681][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.751683][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.751686][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.751690][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.751692][   T70]  ? process_one_work (kernel/workqueue.c:3387)
[   25.751694][   T70]  ? kthread (kernel/kthread.c:436)
[   25.751696][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   25.751699][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   25.751703][   T70]  _printk (kernel/printk/printk.c:2504)
[   25.751707][   T70]  ? snapshot_read.cold (user.c:?)
[   25.751712][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   25.751715][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   25.751719][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   25.751721][   T70]  ? netdev_notice (net/core/dev.c:13194)
[   25.751725][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.751728][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   25.751731][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   25.751732][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.751734][   T70]  ? 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)
[   25.751738][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   25.751743][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[   25.751747][   T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   25.751761][   T70] br_dev_delete (net/bridge/br_if.c:387) bridge
[   25.751770][   T70] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   25.751778][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   25.751782][   T70]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.751786][   T70]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   25.751788][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.751791][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   25.751796][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   25.751799][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.751803][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.751805][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.751809][   T70]  process_one_work (kernel/workqueue.c:3387)
[   25.751815][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   25.751818][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.751826][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   25.751830][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.751832][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   25.751834][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.751837][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.751839][   T70]  kthread (kernel/kthread.c:436)
[   25.751841][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.751844][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.751847][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.751849][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   25.751852][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.751856][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.751859][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.780957][  T525] softirqs last disabled at (13922): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   26.780964][  T525] Preemption disabled at:
| [   26.780965][  T525] 0x0
| [   26.780975][  T525] Tainted: [W]=WARN
[   26.780976][  T525] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.780978][  T525] Call Trace:
[   26.780980][  T525]  <TASK>
[   26.780981][  T525]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.780988][  T525]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.780993][  T525]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.780997][  T525]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.781002][  T525]  __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))
[   26.781004][  T525]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.781010][  T525]  ? 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)
[   26.781012][  T525]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.781015][  T525]  put_chars (drivers/char/virtio_console.c:1176)
[   26.781018][  T525]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.781021][  T525]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.781025][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.781027][  T525]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.781031][  T525]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.781034][  T525]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   26.781035][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781037][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781041][  T525]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.781042][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.781046][  T525]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.781050][  T525]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.781054][  T525]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.781056][  T525]  ? 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))
[   26.781059][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.781061][  T525]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.781065][  T525]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.781069][  T525]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.781071][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781076][  T525]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.781079][  T525]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.781081][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.781083][  T525]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.781087][  T525]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.781088][  T525]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.781092][  T525]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.781096][  T525]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.781098][  T525]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.781100][  T525]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.781103][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.781106][  T525]  _printk (kernel/printk/printk.c:2504)
[   26.781110][  T525]  ? snapshot_read.cold (user.c:?)
[   26.781117][  T525] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   26.781128][  T525] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   26.781137][  T525] br_device_event (net/bridge/br.c:111) bridge
[   26.781144][  T525]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.781149][  T525]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   26.781155][  T525]  notifier_call_chain (kernel/notifier.c:85)
[   26.781161][  T525]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   26.781166][  T525]  ? netif_change_name (net/core/dev.c:1517)
[   26.781170][  T525]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   26.781173][  T525]  ? __kernel_text_address (kernel/extable.c:79)
[   26.781175][  T525]  ? write_profile (profile.c:?)
[   26.781178][  T525]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   26.781182][  T525]  netif_change_flags (net/core/dev.c:9882)
[   26.781186][  T525]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   26.781190][  T525]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.781192][  T525]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.781193][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.781195][  T525]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.781199][  T525]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.781201][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.781203][  T525]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.781205][  T525]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.781208][  T525]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.781210][  T525]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.781212][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781214][  T525]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   26.781217][  T525]  ? ___sys_sendmsg (net/socket.c:2757)
[   26.781222][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.781224][  T525]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.781226][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.781229][  T525]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.781230][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.781232][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.781234][  T525]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.781238][  T525]  ? __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)
[   26.781240][  T525]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.781242][  T525]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.781245][  T525]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.781250][  T525]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.781256][  T525]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.781261][  T525]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.781263][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781267][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.781269][  T525]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.781271][  T525]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.781273][  T525]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.781276][  T525]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.781278][  T525]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.781282][  T525]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.781283][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781287][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.781289][  T525]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.781292][  T525]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.781294][  T525]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.781297][  T525]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.781306][  T525]  ? 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))
[   26.781307][  T525]  ? 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))
[   26.781312][  T525]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.781315][  T525]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.781318][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.781322][  T525]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.781326][  T525]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.781330][  T525]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   26.781335][  T525]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   26.781338][  T525]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.781340][  T525]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   26.781342][  T525]  ? move_addr_to_kernel (net/socket.c:258)
[   26.781349][  T525]  ___sys_sendmsg (net/socket.c:2767)
[   26.781352][  T525]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.781367][  T525]  __sys_sendmsg (net/socket.c:2799)
[   26.781370][  T525]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.781376][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.781380][  T525]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.781382][  T525]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.781385][  T525]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.781388][  T525] RIP: 0033:0x7f93c166e54e
[   26.781390][  T525] 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
[   26.781392][  T525] RSP: 002b:00007ffde3c40f00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.781395][  T525] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f93c166e54e
[   26.781397][  T525] RDX: 0000000000000000 RSI: 00007ffde3c40fb0 RDI: 0000000000000005
[   26.781397][  T525] RBP: 00007ffde3c40f10 R08: 0000000000000000 R09: 0000000000000000
[   26.781398][  T525] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91591c


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
vxlan_flush:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars