======================================
| [   12.272421][  T238] softirqs last disabled at (20377): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.272424][  T238] Preemption disabled at:
| [   12.272424][  T238] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.272434][  T238] Tainted: [W]=WARN
[   12.272435][  T238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.272437][  T238] Call Trace:
[   12.272439][  T238]  <TASK>
[   12.272440][  T238]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.272446][  T238]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.272448][  T238]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.272452][  T238]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.272456][  T238]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.272461][  T238]  __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))
[   12.272463][  T238]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.272469][  T238]  ? 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)
[   12.272472][  T238]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.272474][  T238]  put_chars (drivers/char/virtio_console.c:1176)
[   12.272477][  T238]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.272479][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.272484][  T238]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.272486][  T238]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.272491][  T238]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.272493][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.272498][  T238]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.272501][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.272506][  T238]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.272510][  T238]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.272512][  T238]  ? 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))
[   12.272515][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.272517][  T238]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.272521][  T238]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.272525][  T238]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.272527][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.272531][  T238]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.272534][  T238]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.272536][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.272538][  T238]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.272542][  T238]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.272543][  T238]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.272546][  T238]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.272550][  T238]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.272555][  T238]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   12.272559][  T238]  _printk (kernel/printk/printk.c:2504)
[   12.272563][  T238]  ? snapshot_read.cold (user.c:?)
[   12.272569][  T238]  ? 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)
[   12.272572][  T238] 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
[   12.272575][  T238]  do_one_initcall (init/main.c:1357)
[   12.272578][  T238]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.272582][  T238]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.272585][  T238]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.272590][  T238]  do_init_module (kernel/module/main.c:3117)
[   12.272594][  T238]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.272598][  T238]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.272601][  T238]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.272605][  T238]  load_module (kernel/module/main.c:3593)
[   12.272612][  T238]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.272615][  T238]  ? __ia32_sys_fsconfig (??:?)
[   12.272618][  T238]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   12.272622][  T238]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.272623][  T238]  ? backing_file_read_iter (fs/backing-file.c:211)
[   12.272626][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.272630][  T238]  init_module_from_file (kernel/module/main.c:3790)
[   12.272633][  T238]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.272641][  T238]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.272644][  T238]  ? 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)
[   12.272647][  T238]  idempotent_init_module (kernel/module/main.c:3802)
[   12.272650][  T238]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.272656][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.272659][  T238]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.272664][  T238]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.272667][  T238]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.272670][  T238]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.272672][  T238]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.272674][  T238]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.272677][  T238] RIP: 0033:0x7f16281eb37d
[   12.272680][  T238] 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
[   12.272682][  T238] RSP: 002b:00007ffc061c1338 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.272684][  T238] RAX: ffffffffffffffda RBX: 0000563be3dda810 RCX: 00007f16281eb37d
[   12.272686][  T238] RDX: 0000000000000000 RSI: 0000563ba7822ffd RDI: 0000000000000000
[   12.272687][  T238] RBP: 00007ffc061c13d0 R08: 0000000000000000 R09: 0000000000000000
[   12.272687][  T238] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563ba7822ffd
[   12.272688][  T238] R13: 0000563be3dda960 R14: 0000000000040000 R15: 0000000000000000
| [   13.698807][  T285] softirqs last disabled at (20072): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.698810][  T285] Preemption disabled at:
| [   13.698810][  T285] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.698820][  T285] Tainted: [W]=WARN
[   13.698821][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.698823][  T285] Call Trace:
[   13.698824][  T285]  <TASK>
[   13.698826][  T285]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.698832][  T285]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.698834][  T285]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.698839][  T285]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.698843][  T285]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.698848][  T285]  __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))
[   13.698851][  T285]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.698856][  T285]  ? 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)
[   13.698859][  T285]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.698862][  T285]  put_chars (drivers/char/virtio_console.c:1176)
[   13.698865][  T285]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.698870][  T285]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   13.698873][  T285]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.698876][  T285]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.698878][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.698880][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.698884][  T285]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.698886][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.698889][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.698893][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.698897][  T285]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.698900][  T285]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.698902][  T285]  ? 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))
[   13.698905][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.698908][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.698912][  T285]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.698916][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.698921][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.698926][  T285]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.698929][  T285]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.698931][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.698933][  T285]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.698937][  T285]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.698939][  T285]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.698942][  T285]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.698946][  T285]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.698949][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.698951][  T285]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   13.698955][  T285]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.698959][  T285]  _printk (kernel/printk/printk.c:2504)
[   13.698962][  T285]  ? snapshot_read.cold (user.c:?)
[   13.698966][  T285]  ? br_multicast_flood (??:?) bridge
[   13.698979][  T285]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.698981][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.698982][  T285]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.698986][  T285] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.698996][  T285] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.699005][  T285] new_nbp (net/bridge/br_if.c:449) bridge
[   13.699014][  T285] br_add_if (net/bridge/br_if.c:592) bridge
[   13.699021][  T285]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.699025][  T285]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.699028][  T285]  ? __kernel_text_address (kernel/extable.c:79)
[   13.699032][  T285]  do_set_master (net/core/rtnetlink.c:3071)
[   13.699037][  T285]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.699040][  T285]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.699043][  T285]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.699044][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.699047][  T285]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.699051][  T285]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.699053][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.699055][  T285]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.699058][  T285]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.699060][  T285]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.699062][  T285]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.699065][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.699067][  T285]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.699070][  T285]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.699074][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.699076][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.699079][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.699081][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.699083][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.699085][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.699087][  T285]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.699091][  T285]  ? __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)
[   13.699093][  T285]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.699095][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.699098][  T285]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.699100][  T285]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.699105][  T285]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.699110][  T285]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.699116][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.699117][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.699122][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.699124][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.699126][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.699128][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.699131][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.699133][  T285]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.699136][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.699138][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.699142][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.699144][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.699148][  T285]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.699150][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.699153][  T285]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.699159][  T285]  ? 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))
[   13.699160][  T285]  ? 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))
[   13.699165][  T285]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.699168][  T285]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.699171][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.699175][  T285]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.699179][  T285]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.699183][  T285]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.699188][  T285]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.699190][  T285]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.699192][  T285]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.699194][  T285]  ? move_addr_to_kernel (net/socket.c:258)
[   13.699201][  T285]  ___sys_sendmsg (net/socket.c:2767)
[   13.699204][  T285]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.699220][  T285]  __sys_sendmsg (net/socket.c:2799)
[   13.699223][  T285]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.699229][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.699233][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.699235][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.699238][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.699241][  T285] RIP: 0033:0x7f71b6aba54e
[   13.699244][  T285] 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
[   13.699246][  T285] RSP: 002b:00007ffdf6ca0810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.699249][  T285] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71b6aba54e
[   13.699250][  T285] RDX: 0000000000000000 RSI: 00007ffdf6ca08c0 RDI: 0000000000000005
[   13.699251][  T285] RBP: 00007ffdf6ca0820 R08: 0000000000000000 R09: 0000000000000000
[   13.699252][  T285] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd2d
[   13.699253][  T285] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf6ca0f80
| [   15.275642][  T336] softirqs last disabled at (17926): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.275644][  T336] Preemption disabled at:
| [   15.275645][  T336] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.275654][  T336] Tainted: [W]=WARN
[   15.275655][  T336] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.275657][  T336] Call Trace:
[   15.275658][  T336]  <TASK>
[   15.275660][  T336]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.275665][  T336]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.275668][  T336]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.275673][  T336]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.275677][  T336]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.275682][  T336]  __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))
[   15.275685][  T336]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.275691][  T336]  ? 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)
[   15.275693][  T336]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.275697][  T336]  put_chars (drivers/char/virtio_console.c:1176)
[   15.275699][  T336]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.275701][  T336]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.275704][  T336]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.275709][  T336]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.275711][  T336]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.275715][  T336]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.275718][  T336]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.275720][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.275721][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.275726][  T336]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.275728][  T336]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.275731][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.275733][  T336]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.275737][  T336]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.275741][  T336]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.275743][  T336]  ? 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))
[   15.275747][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.275749][  T336]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.275753][  T336]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.275758][  T336]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.275760][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.275765][  T336]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.275768][  T336]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.275770][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.275777][  T336]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.275781][  T336]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.275783][  T336]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.275786][  T336]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.275791][  T336]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.275794][  T336]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.275796][  T336]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.275800][  T336]  _printk (kernel/printk/printk.c:2504)
[   15.275804][  T336]  ? snapshot_read.cold (user.c:?)
[   15.275808][  T336]  ? br_multicast_flood (??:?) bridge
[   15.275821][  T336]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.275822][  T336]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.275824][  T336]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.275828][  T336] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.275839][  T336] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.275848][  T336] new_nbp (net/bridge/br_if.c:449) bridge
[   15.275858][  T336] br_add_if (net/bridge/br_if.c:592) bridge
[   15.275865][  T336]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.275870][  T336]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.275873][  T336]  ? __kernel_text_address (kernel/extable.c:79)
[   15.275877][  T336]  do_set_master (net/core/rtnetlink.c:3071)
[   15.275881][  T336]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.275885][  T336]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.275888][  T336]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.275889][  T336]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.275891][  T336]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.275895][  T336]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.275897][  T336]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.275899][  T336]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.275902][  T336]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.275905][  T336]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.275907][  T336]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.275909][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.275911][  T336]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.275914][  T336]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.275921][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.275923][  T336]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.275926][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.275928][  T336]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.275930][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.275932][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.275934][  T336]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.275939][  T336]  ? __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)
[   15.275942][  T336]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.275944][  T336]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.275947][  T336]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.275949][  T336]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.275954][  T336]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.275959][  T336]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.275965][  T336]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.275966][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.275971][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.275973][  T336]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.275975][  T336]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.275977][  T336]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.275981][  T336]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.275983][  T336]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.275986][  T336]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.275987][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.275992][  T336]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.275994][  T336]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.275997][  T336]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.275999][  T336]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.276002][  T336]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.276008][  T336]  ? 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))
[   15.276010][  T336]  ? 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))
[   15.276014][  T336]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.276018][  T336]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.276020][  T336]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.276025][  T336]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.276028][  T336]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.276032][  T336]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.276038][  T336]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.276040][  T336]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.276043][  T336]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.276045][  T336]  ? move_addr_to_kernel (net/socket.c:258)
[   15.276052][  T336]  ___sys_sendmsg (net/socket.c:2767)
[   15.276055][  T336]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.276071][  T336]  __sys_sendmsg (net/socket.c:2799)
[   15.276074][  T336]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.276080][  T336]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.276083][  T336]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.276086][  T336]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.276089][  T336]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.276091][  T336] RIP: 0033:0x7fe1f36b154e
[   15.276095][  T336] 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
[   15.276097][  T336] RSP: 002b:00007ffe3386dc60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.276100][  T336] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe1f36b154e
[   15.276101][  T336] RDX: 0000000000000000 RSI: 00007ffe3386dd10 RDI: 0000000000000005
[   15.276102][  T336] RBP: 00007ffe3386dc70 R08: 0000000000000000 R09: 0000000000000000
[   15.276103][  T336] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd2e
[   15.276104][  T336] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3386e3d0
| [   16.636138][  T382] softirqs last disabled at (14340): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   16.636140][  T382] Preemption disabled at:
| [   16.636141][  T382] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.636151][  T382] Tainted: [W]=WARN
[   16.636151][  T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.636153][  T382] Call Trace:
[   16.636155][  T382]  <TASK>
[   16.636156][  T382]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.636162][  T382]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.636165][  T382]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.636170][  T382]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.636174][  T382]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.636180][  T382]  __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))
[   16.636182][  T382]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.636188][  T382]  ? 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)
[   16.636191][  T382]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.636194][  T382]  put_chars (drivers/char/virtio_console.c:1176)
[   16.636196][  T382]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   16.636198][  T382]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.636201][  T382]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.636206][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.636208][  T382]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.636212][  T382]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.636215][  T382]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.636217][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636219][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636223][  T382]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.636225][  T382]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.636228][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636230][  T382]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.636234][  T382]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.636238][  T382]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.636240][  T382]  ? 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))
[   16.636243][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636246][  T382]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.636250][  T382]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.636254][  T382]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.636256][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636261][  T382]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.636264][  T382]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.636266][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636268][  T382]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.636272][  T382]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.636274][  T382]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.636277][  T382]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.636282][  T382]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.636284][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.636287][  T382]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   16.636290][  T382]  _printk (kernel/printk/printk.c:2504)
[   16.636294][  T382]  ? snapshot_read.cold (user.c:?)
[   16.636298][  T382]  ? br_multicast_flood (??:?) bridge
[   16.636311][  T382]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.636313][  T382]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.636314][  T382]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.636318][  T382] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.636329][  T382] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   16.636338][  T382] new_nbp (net/bridge/br_if.c:449) bridge
[   16.636347][  T382] br_add_if (net/bridge/br_if.c:592) bridge
[   16.636354][  T382]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   16.636359][  T382]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   16.636362][  T382]  ? __kernel_text_address (kernel/extable.c:79)
[   16.636365][  T382]  do_set_master (net/core/rtnetlink.c:3071)
[   16.636370][  T382]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.636373][  T382]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.636376][  T382]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.636378][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.636379][  T382]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.636383][  T382]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.636386][  T382]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.636388][  T382]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.636390][  T382]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.636393][  T382]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.636395][  T382]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.636398][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636400][  T382]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   16.636403][  T382]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.636408][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.636409][  T382]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.636412][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636414][  T382]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.636416][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636418][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636420][  T382]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.636424][  T382]  ? __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)
[   16.636427][  T382]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.636429][  T382]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.636433][  T382]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.636434][  T382]  ? nla_get_range_signed (lib/nlattr.c:270)
[   16.636439][  T382]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.636445][  T382]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.636450][  T382]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.636452][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636456][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.636458][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.636461][  T382]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.636462][  T382]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.636466][  T382]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.636468][  T382]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.636471][  T382]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.636473][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636477][  T382]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.636479][  T382]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.636482][  T382]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.636484][  T382]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.636487][  T382]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.636493][  T382]  ? 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))
[   16.636495][  T382]  ? 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))
[   16.636499][  T382]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.636503][  T382]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.636506][  T382]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.636510][  T382]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.636514][  T382]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.636518][  T382]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.636523][  T382]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.636525][  T382]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.636528][  T382]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.636530][  T382]  ? move_addr_to_kernel (net/socket.c:258)
[   16.636537][  T382]  ___sys_sendmsg (net/socket.c:2767)
[   16.636540][  T382]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.636556][  T382]  __sys_sendmsg (net/socket.c:2799)
[   16.636559][  T382]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.636565][  T382]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.636569][  T382]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.636571][  T382]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.636575][  T382]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.636577][  T382] RIP: 0033:0x7f9c4946654e
[   16.636581][  T382] 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
[   16.636583][  T382] RSP: 002b:00007ffc25e8d0b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.636586][  T382] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9c4946654e
[   16.636587][  T382] RDX: 0000000000000000 RSI: 00007ffc25e8d160 RDI: 0000000000000005
[   16.636588][  T382] RBP: 00007ffc25e8d0c0 R08: 0000000000000000 R09: 0000000000000000
[   16.636589][  T382] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd30
[   16.636590][  T382] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc25e8d820
| [   26.644071][   T69] softirqs last disabled at (41733): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.644074][   T69] Preemption disabled at:
| [   26.644074][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.644083][   T69] Tainted: [W]=WARN
[   26.644084][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.644085][   T69] Workqueue: netns cleanup_net
[   26.644089][   T69] Call Trace:
[   26.644090][   T69]  <TASK>
[   26.644092][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.644098][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.644100][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.644105][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.644109][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.644114][   T69]  __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))
[   26.644116][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.644122][   T69]  ? 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)
[   26.644125][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.644128][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   26.644131][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.644134][   T69]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   26.644139][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.644142][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.644143][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.644148][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.644149][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   26.644153][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.644157][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.644161][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.644165][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.644167][   T69]  ? 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))
[   26.644170][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.644172][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.644177][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.644181][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.644183][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.644189][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.644191][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.644193][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.644196][   T69]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.644200][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.644201][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.644205][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.644209][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.644211][   T69]  ? process_one_work (kernel/workqueue.c:3387)
[   26.644213][   T69]  ? kthread (kernel/kthread.c:436)
[   26.644215][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   26.644218][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   26.644223][   T69]  _printk (kernel/printk/printk.c:2504)
[   26.644227][   T69]  ? snapshot_read.cold (user.c:?)
[   26.644232][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   26.644235][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   26.644239][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   26.644241][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   26.644245][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.644248][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   26.644251][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   26.644252][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.644254][   T69]  ? 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)
[   26.644258][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   26.644262][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   26.644266][   T69] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   26.644282][   T69] br_dev_delete (net/bridge/br_if.c:387) bridge
[   26.644292][   T69] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   26.644300][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   26.644304][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.644308][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   26.644309][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.644312][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   26.644317][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   26.644321][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.644325][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.644326][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.644331][   T69]  process_one_work (kernel/workqueue.c:3387)
[   26.644337][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   26.644340][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.644348][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.644352][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.644354][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.644357][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.644360][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.644362][   T69]  kthread (kernel/kthread.c:436)
[   26.644363][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.644366][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.644369][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.644372][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   26.644375][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.644378][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.644381][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   27.681240][  T524] softirqs last disabled at (26380): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   27.681255][  T524] Preemption disabled at:
| [   27.681256][  T524] 0x0
| [   27.681270][  T524] Tainted: [W]=WARN
[   27.681271][  T524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.681274][  T524] Call Trace:
[   27.681276][  T524]  <TASK>
[   27.681279][  T524]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.681287][  T524]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.681294][  T524]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.681300][  T524]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.681308][  T524]  __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))
[   27.681312][  T524]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.681321][  T524]  ? 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)
[   27.681325][  T524]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.681331][  T524]  put_chars (drivers/char/virtio_console.c:1176)
[   27.681336][  T524]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.681341][  T524]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.681347][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.681350][  T524]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.681357][  T524]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.681361][  T524]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   27.681363][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681366][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681374][  T524]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.681376][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.681383][  T524]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.681390][  T524]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.681397][  T524]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.681400][  T524]  ? 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))
[   27.681405][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.681409][  T524]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.681416][  T524]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.681423][  T524]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.681426][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681436][  T524]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.681440][  T524]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.681443][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.681447][  T524]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.681454][  T524]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.681457][  T524]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.681464][  T524]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.681472][  T524]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.681475][  T524]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.681479][  T524]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.681483][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.681490][  T524]  _printk (kernel/printk/printk.c:2504)
[   27.681495][  T524]  ? snapshot_read.cold (user.c:?)
[   27.681512][  T524] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   27.681532][  T524] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   27.681551][  T524] br_device_event (net/bridge/br.c:111) bridge
[   27.681565][  T524]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   27.681571][  T524]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   27.681584][  T524]  notifier_call_chain (kernel/notifier.c:85)
[   27.681595][  T524]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   27.681603][  T524]  ? netif_change_name (net/core/dev.c:1517)
[   27.681610][  T524]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   27.681615][  T524]  ? __kernel_text_address (kernel/extable.c:79)
[   27.681619][  T524]  ? write_profile (profile.c:?)
[   27.681622][  T524]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   27.681631][  T524]  netif_change_flags (net/core/dev.c:9882)
[   27.681638][  T524]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   27.681646][  T524]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   27.681650][  T524]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   27.681652][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   27.681655][  T524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   27.681660][  T524]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.681664][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.681667][  T524]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.681672][  T524]  ? kasan_save_stack (mm/kasan/common.c:58)
[   27.681681][  T524]  ? kasan_save_stack (mm/kasan/common.c:57)
[   27.681683][  T524]  ? kasan_save_track (mm/kasan/common.c:78)
[   27.681688][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681691][  T524]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   27.681696][  T524]  ? ___sys_sendmsg (net/socket.c:2757)
[   27.681704][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.681707][  T524]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.681712][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.681716][  T524]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.681718][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.681721][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.681725][  T524]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   27.681731][  T524]  ? __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)
[   27.681733][  T524]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   27.681737][  T524]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.681744][  T524]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   27.681755][  T524]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   27.681766][  T524]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.681777][  T524]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.681781][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681790][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.681793][  T524]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.681796][  T524]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.681800][  T524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.681807][  T524]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.681811][  T524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.681817][  T524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.681819][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681828][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.681832][  T524]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.681838][  T524]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.681841][  T524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.681847][  T524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   27.681859][  T524]  ? 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))
[   27.681862][  T524]  ? 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))
[   27.681871][  T524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.681878][  T524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   27.681883][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.681892][  T524]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.681899][  T524]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   27.681907][  T524]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   27.681916][  T524]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   27.681923][  T524]  ? copy_msghdr_from_user (net/socket.c:2650)
[   27.681927][  T524]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   27.681930][  T524]  ? move_addr_to_kernel (net/socket.c:258)
[   27.681945][  T524]  ___sys_sendmsg (net/socket.c:2767)
[   27.681951][  T524]  ? copy_msghdr_from_user (net/socket.c:2619)
[   27.681985][  T524]  __sys_sendmsg (net/socket.c:2799)
[   27.681990][  T524]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   27.682003][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.682010][  T524]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.682013][  T524]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.682019][  T524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.682023][  T524] RIP: 0033:0x7f6850c3f54e
[   27.682027][  T524] 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
[   27.682030][  T524] RSP: 002b:00007ffd13692ee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   27.682034][  T524] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6850c3f54e
[   27.682036][  T524] RDX: 0000000000000000 RSI: 00007ffd13692f90 RDI: 0000000000000005
[   27.682037][  T524] RBP: 00007ffd13692ef0 R08: 0000000000000000 R09: 0000000000000000
[   27.682039][  T524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd3b


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
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars