======================================
| [   10.770675][  T238] softirqs last disabled at (19949): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.770679][  T238] Preemption disabled at:
| [   10.770679][  T238] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.770692][  T238] Tainted: [W]=WARN
[   10.770693][  T238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.770695][  T238] Call Trace:
[   10.770697][  T238]  <TASK>
[   10.770699][  T238]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.770706][  T238]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.770710][  T238]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.770716][  T238]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.770721][  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)
[   10.770728][  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))
[   10.770732][  T238]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.770740][  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)
[   10.770744][  T238]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.770749][  T238]  put_chars (drivers/char/virtio_console.c:1176)
[   10.770753][  T238]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.770755][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.770762][  T238]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.770766][  T238]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.770773][  T238]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.770777][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.770785][  T238]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.770790][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.770799][  T238]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.770805][  T238]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.770807][  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))
[   10.770812][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.770816][  T238]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.770823][  T238]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.770830][  T238]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.770832][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.770841][  T238]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.770846][  T238]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.770848][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.770852][  T238]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.770858][  T238]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.770860][  T238]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.770866][  T238]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.770872][  T238]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.770881][  T238]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.770887][  T238]  _printk (kernel/printk/printk.c:2504)
[   10.770892][  T238]  ? snapshot_read.cold (user.c:?)
[   10.770903][  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)
[   10.770908][  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
[   10.770913][  T238]  do_one_initcall (init/main.c:1357)
[   10.770917][  T238]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.770933][  T238]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.770936][  T238]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.770944][  T238]  do_init_module (kernel/module/main.c:3117)
[   10.770949][  T238]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.770955][  T238]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.770961][  T238]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.770968][  T238]  load_module (kernel/module/main.c:3593)
[   10.770981][  T238]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.770987][  T238]  ? __ia32_sys_fsconfig (??:?)
[   10.770991][  T238]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.770997][  T238]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.771001][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.771008][  T238]  init_module_from_file (kernel/module/main.c:3790)
[   10.771013][  T238]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.771028][  T238]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.771034][  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)
[   10.771040][  T238]  idempotent_init_module (kernel/module/main.c:3802)
[   10.771045][  T238]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.771057][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.771061][  T238]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.771070][  T238]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.771073][  T238]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.771079][  T238]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.771082][  T238]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.771087][  T238]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.771090][  T238] RIP: 0033:0x7f9f110c337d
[   10.771094][  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
[   10.771097][  T238] RSP: 002b:00007fff17c3c918 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.771100][  T238] RAX: ffffffffffffffda RBX: 000056241a4bf810 RCX: 00007f9f110c337d
[   10.771102][  T238] RDX: 0000000000000000 RSI: 000056240479fffd RDI: 0000000000000000
[   10.771104][  T238] RBP: 00007fff17c3c9b0 R08: 0000000000000000 R09: 0000000000000000
[   10.771105][  T238] R10: 0000000000000000 R11: 0000000000000246 R12: 000056240479fffd
[   10.771106][  T238] R13: 000056241a4bf960 R14: 0000000000040000 R15: 0000000000000000
| [   12.094114][  T283] softirqs last disabled at (13656): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.094117][  T283] Preemption disabled at:
| [   12.094118][  T283] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.094127][  T283] Tainted: [W]=WARN
[   12.094127][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.094129][  T283] Call Trace:
[   12.094131][  T283]  <TASK>
[   12.094132][  T283]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.094139][  T283]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.094141][  T283]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.094145][  T283]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.094149][  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)
[   12.094154][  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))
[   12.094157][  T283]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.094164][  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)
[   12.094167][  T283]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.094170][  T283]  put_chars (drivers/char/virtio_console.c:1176)
[   12.094173][  T283]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.094177][  T283]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.094181][  T283]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.094183][  T283]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.094185][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094187][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094191][  T283]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.094193][  T283]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.094196][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094200][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.094204][  T283]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.094207][  T283]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.094209][  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))
[   12.094212][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094214][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.094218][  T283]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.094222][  T283]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.094224][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094229][  T283]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.094232][  T283]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.094234][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094236][  T283]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.094240][  T283]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.094241][  T283]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.094245][  T283]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.094248][  T283]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.094251][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.094252][  T283]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.094257][  T283]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.094260][  T283]  _printk (kernel/printk/printk.c:2504)
[   12.094264][  T283]  ? snapshot_read.cold (user.c:?)
[   12.094267][  T283]  ? br_multicast_flood (??:?) bridge
[   12.094280][  T283]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.094281][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.094283][  T283]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.094287][  T283] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.094296][  T283] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.094305][  T283] new_nbp (net/bridge/br_if.c:449) bridge
[   12.094314][  T283] br_add_if (net/bridge/br_if.c:592) bridge
[   12.094320][  T283]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.094325][  T283]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.094328][  T283]  ? __kernel_text_address (kernel/extable.c:79)
[   12.094331][  T283]  do_set_master (net/core/rtnetlink.c:3071)
[   12.094336][  T283]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.094339][  T283]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.094342][  T283]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.094343][  T283]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.094345][  T283]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.094349][  T283]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.094351][  T283]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.094353][  T283]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.094356][  T283]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.094359][  T283]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.094360][  T283]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.094363][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094365][  T283]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.094368][  T283]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.094372][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.094374][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.094376][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094379][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.094380][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094382][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094384][  T283]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.094388][  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)
[   12.094390][  T283]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.094392][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.094395][  T283]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.094397][  T283]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.094401][  T283]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.094406][  T283]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.094412][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.094413][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094418][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.094419][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.094421][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.094423][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.094427][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.094429][  T283]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.094432][  T283]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.094433][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094437][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.094439][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.094442][  T283]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.094444][  T283]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.094447][  T283]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.094453][  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))
[   12.094454][  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))
[   12.094458][  T283]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.094462][  T283]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.094464][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.094469][  T283]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.094472][  T283]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.094476][  T283]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.094481][  T283]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.094484][  T283]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.094486][  T283]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.094487][  T283]  ? move_addr_to_kernel (net/socket.c:258)
[   12.094494][  T283]  ___sys_sendmsg (net/socket.c:2767)
[   12.094497][  T283]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.094512][  T283]  __sys_sendmsg (net/socket.c:2799)
[   12.094515][  T283]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.094521][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.094525][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.094527][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.094530][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.094532][  T283] RIP: 0033:0x7f010f86e54e
[   12.094536][  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
[   12.094538][  T283] RSP: 002b:00007ffca666ea60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.094540][  T283] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f010f86e54e
[   12.094542][  T283] RDX: 0000000000000000 RSI: 00007ffca666eb10 RDI: 0000000000000005
[   12.094543][  T283] RBP: 00007ffca666ea70 R08: 0000000000000000 R09: 0000000000000000
[   12.094544][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f4e
[   12.094544][  T283] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca666f1d0
| [   13.839003][  T341] softirqs last disabled at (19582): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.839006][  T341] Preemption disabled at:
| [   13.839006][  T341] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.839015][  T341] Tainted: [W]=WARN
[   13.839016][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.839018][  T341] Call Trace:
[   13.839020][  T341]  <TASK>
[   13.839021][  T341]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.839027][  T341]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.839029][  T341]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.839033][  T341]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.839037][  T341]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.839043][  T341]  __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))
[   13.839045][  T341]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.839050][  T341]  ? 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)
[   13.839053][  T341]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.839056][  T341]  put_chars (drivers/char/virtio_console.c:1176)
[   13.839058][  T341]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.839060][  T341]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.839063][  T341]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.839067][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.839070][  T341]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.839073][  T341]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.839076][  T341]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.839078][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839079][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839083][  T341]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.839085][  T341]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.839088][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839091][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.839095][  T341]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.839099][  T341]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.839100][  T341]  ? 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))
[   13.839104][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839106][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.839110][  T341]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.839114][  T341]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.839116][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839121][  T341]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.839124][  T341]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.839125][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839128][  T341]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.839131][  T341]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.839133][  T341]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.839136][  T341]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.839141][  T341]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.839143][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.839146][  T341]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.839149][  T341]  _printk (kernel/printk/printk.c:2504)
[   13.839153][  T341]  ? snapshot_read.cold (user.c:?)
[   13.839157][  T341]  ? br_multicast_flood (??:?) bridge
[   13.839175][  T341]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.839176][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.839177][  T341]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.839181][  T341] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.839191][  T341] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.839200][  T341] new_nbp (net/bridge/br_if.c:449) bridge
[   13.839209][  T341] br_add_if (net/bridge/br_if.c:592) bridge
[   13.839216][  T341]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.839220][  T341]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.839223][  T341]  ? __kernel_text_address (kernel/extable.c:79)
[   13.839227][  T341]  do_set_master (net/core/rtnetlink.c:3071)
[   13.839231][  T341]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.839234][  T341]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.839237][  T341]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.839239][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.839240][  T341]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.839244][  T341]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.839246][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.839248][  T341]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.839250][  T341]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.839253][  T341]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.839255][  T341]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.839258][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839259][  T341]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.839262][  T341]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.839267][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.839268][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.839271][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839273][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.839275][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839277][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839279][  T341]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.839283][  T341]  ? __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)
[   13.839286][  T341]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.839288][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.839291][  T341]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.839293][  T341]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.839297][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.839302][  T341]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.839307][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.839309][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839313][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.839315][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.839317][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.839319][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.839323][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.839324][  T341]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.839327][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.839329][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839333][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.839335][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.839338][  T341]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.839340][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.839343][  T341]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.839349][  T341]  ? 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))
[   13.839350][  T341]  ? 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))
[   13.839354][  T341]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.839358][  T341]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.839360][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.839364][  T341]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.839368][  T341]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.839371][  T341]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.839377][  T341]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.839379][  T341]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.839381][  T341]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.839383][  T341]  ? move_addr_to_kernel (net/socket.c:258)
[   13.839390][  T341]  ___sys_sendmsg (net/socket.c:2767)
[   13.839392][  T341]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.839408][  T341]  __sys_sendmsg (net/socket.c:2799)
[   13.839410][  T341]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.839417][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.839420][  T341]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.839422][  T341]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.839425][  T341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.839428][  T341] RIP: 0033:0x7f240a86154e
[   13.839431][  T341] 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
[   13.839432][  T341] RSP: 002b:00007ffe5e0b4dc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.839435][  T341] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f240a86154e
[   13.839437][  T341] RDX: 0000000000000000 RSI: 00007ffe5e0b4e70 RDI: 0000000000000005
[   13.839438][  T341] RBP: 00007ffe5e0b4dd0 R08: 0000000000000000 R09: 0000000000000000
[   13.839438][  T341] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f50
[   13.839439][  T341] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe5e0b5530
| [   15.113854][  T395] softirqs last disabled at (10964): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.113857][  T395] Preemption disabled at:
| [   15.113858][  T395] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.113867][  T395] Tainted: [W]=WARN
[   15.113868][  T395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.113870][  T395] Call Trace:
[   15.113871][  T395]  <TASK>
[   15.113873][  T395]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.113879][  T395]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.113881][  T395]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.113885][  T395]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.113889][  T395]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.113894][  T395]  __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))
[   15.113896][  T395]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.113902][  T395]  ? 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)
[   15.113905][  T395]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.113908][  T395]  put_chars (drivers/char/virtio_console.c:1176)
[   15.113910][  T395]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.113912][  T395]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.113914][  T395]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.113918][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.113921][  T395]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.113924][  T395]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.113927][  T395]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.113935][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.113936][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.113940][  T395]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.113942][  T395]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.113945][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.113948][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.113951][  T395]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.113955][  T395]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.113957][  T395]  ? 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))
[   15.113960][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.113962][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.113966][  T395]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.113970][  T395]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.113972][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.113977][  T395]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.113979][  T395]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.113981][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.113983][  T395]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.113987][  T395]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.113989][  T395]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.113992][  T395]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.113996][  T395]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.113998][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.114001][  T395]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.114004][  T395]  _printk (kernel/printk/printk.c:2504)
[   15.114008][  T395]  ? snapshot_read.cold (user.c:?)
[   15.114012][  T395]  ? br_multicast_flood (??:?) bridge
[   15.114025][  T395]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.114026][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.114027][  T395]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.114031][  T395] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.114042][  T395] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.114050][  T395] new_nbp (net/bridge/br_if.c:449) bridge
[   15.114059][  T395] br_add_if (net/bridge/br_if.c:592) bridge
[   15.114066][  T395]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.114069][  T395]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.114072][  T395]  ? __kernel_text_address (kernel/extable.c:79)
[   15.114076][  T395]  do_set_master (net/core/rtnetlink.c:3071)
[   15.114081][  T395]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.114084][  T395]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.114087][  T395]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.114088][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.114090][  T395]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.114093][  T395]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.114096][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.114098][  T395]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.114100][  T395]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.114103][  T395]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.114105][  T395]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.114107][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.114109][  T395]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.114112][  T395]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.114117][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.114118][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.114121][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.114123][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.114125][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.114127][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.114129][  T395]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.114133][  T395]  ? __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)
[   15.114135][  T395]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.114138][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.114141][  T395]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.114142][  T395]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.114147][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.114152][  T395]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.114157][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.114159][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.114166][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.114168][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.114170][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.114172][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.114176][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.114178][  T395]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.114181][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.114182][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.114187][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.114188][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.114192][  T395]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.114194][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.114196][  T395]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.114202][  T395]  ? 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))
[   15.114204][  T395]  ? 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))
[   15.114208][  T395]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.114211][  T395]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.114214][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.114218][  T395]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.114222][  T395]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.114225][  T395]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.114231][  T395]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.114233][  T395]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.114235][  T395]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.114237][  T395]  ? move_addr_to_kernel (net/socket.c:258)
[   15.114244][  T395]  ___sys_sendmsg (net/socket.c:2767)
[   15.114247][  T395]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.114262][  T395]  __sys_sendmsg (net/socket.c:2799)
[   15.114264][  T395]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.114270][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.114274][  T395]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.114276][  T395]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.114279][  T395]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.114281][  T395] RIP: 0033:0x7f86610f354e
[   15.114284][  T395] 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
[   15.114286][  T395] RSP: 002b:00007ffd4bf5aac0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.114289][  T395] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f86610f354e
[   15.114291][  T395] RDX: 0000000000000000 RSI: 00007ffd4bf5ab70 RDI: 0000000000000005
[   15.114291][  T395] RBP: 00007ffd4bf5aad0 R08: 0000000000000000 R09: 0000000000000000
[   15.114292][  T395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f51
[   15.114293][  T395] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4bf5b230
| [   16.291829][  T453] softirqs last disabled at (25258): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) bridge
| [   16.291837][  T453] Preemption disabled at:
| [   16.291838][  T453] 0x0
| [   16.291847][  T453] Tainted: [W]=WARN
[   16.291848][  T453] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.291850][  T453] Call Trace:
[   16.291851][  T453]  <TASK>
[   16.291853][  T453]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.291859][  T453]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.291864][  T453]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.291868][  T453]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.291873][  T453]  __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))
[   16.291875][  T453]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.291881][  T453]  ? 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)
[   16.291884][  T453]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.291887][  T453]  put_chars (drivers/char/virtio_console.c:1176)
[   16.291889][  T453]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   16.291891][  T453]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.291894][  T453]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.291898][  T453]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.291900][  T453]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.291903][  T453]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.291906][  T453]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.291908][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.291910][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.291914][  T453]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.291916][  T453]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.291919][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.291921][  T453]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.291925][  T453]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.291929][  T453]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.291931][  T453]  ? 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))
[   16.291939][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.291942][  T453]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.291946][  T453]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.291950][  T453]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.291952][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.291957][  T453]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.291959][  T453]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.291961][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.291964][  T453]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.291967][  T453]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.291969][  T453]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.291972][  T453]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.291977][  T453]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.291979][  T453]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.291982][  T453]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.291986][  T453]  _printk (kernel/printk/printk.c:2504)
[   16.291989][  T453]  ? snapshot_read.cold (user.c:?)
[   16.291994][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.291998][  T453] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.292010][  T453] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   16.292019][  T453] br_stp_enable_port (net/bridge/br_stp_if.c:93) bridge
[   16.292026][  T453] br_device_event (net/bridge/br.c:120) bridge
[   16.292034][  T453]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   16.292036][  T453]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   16.292043][  T453]  notifier_call_chain (kernel/notifier.c:85)
[   16.292049][  T453]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   16.292054][  T453]  ? netif_change_name (net/core/dev.c:1517)
[   16.292057][  T453]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   16.292060][  T453]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   16.292062][  T453]  ? __kernel_text_address (kernel/extable.c:79)
[   16.292064][  T453]  ? write_profile (profile.c:?)
[   16.292066][  T453]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.292071][  T453]  netif_change_flags (net/core/dev.c:9882)
[   16.292075][  T453]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   16.292079][  T453]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.292081][  T453]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.292082][  T453]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.292084][  T453]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.292087][  T453]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.292090][  T453]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.292092][  T453]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.292094][  T453]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.292098][  T453]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.292099][  T453]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.292102][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292104][  T453]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   16.292106][  T453]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.292110][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.292112][  T453]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.292115][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292117][  T453]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.292119][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292120][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292123][  T453]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.292126][  T453]  ? __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)
[   16.292129][  T453]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.292131][  T453]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.292134][  T453]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.292140][  T453]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.292145][  T453]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.292150][  T453]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.292152][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292156][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.292158][  T453]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.292160][  T453]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.292163][  T453]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.292167][  T453]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.292169][  T453]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.292172][  T453]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.292173][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292178][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.292180][  T453]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.292183][  T453]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.292185][  T453]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.292188][  T453]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.292194][  T453]  ? 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))
[   16.292195][  T453]  ? 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))
[   16.292200][  T453]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.292203][  T453]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.292206][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.292210][  T453]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.292214][  T453]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.292218][  T453]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.292223][  T453]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.292225][  T453]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.292228][  T453]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.292229][  T453]  ? move_addr_to_kernel (net/socket.c:258)
[   16.292237][  T453]  ___sys_sendmsg (net/socket.c:2767)
[   16.292240][  T453]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.292255][  T453]  __sys_sendmsg (net/socket.c:2799)
[   16.292258][  T453]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.292264][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.292268][  T453]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.292270][  T453]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.292273][  T453]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.292275][  T453] RIP: 0033:0x7f24a13fb54e
[   16.292278][  T453] 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
[   16.292280][  T453] RSP: 002b:00007ffff3819770 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.292282][  T453] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f24a13fb54e
[   16.292284][  T453] RDX: 0000000000000000 RSI: 00007ffff3819820 RDI: 0000000000000005
[   16.292285][  T453] RBP: 00007ffff3819780 R08: 0000000000000000 R09: 0000000000000000
[   16.292285][  T453] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f52
[   16.292286][  T453] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff3819ee0
| [   24.511135][   T12] softirqs last disabled at (36298): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan
| [   24.511142][   T12] Preemption disabled at:
| [   24.511143][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.511155][   T12] Tainted: [W]=WARN
[   24.511156][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.511159][   T12] Workqueue: netns cleanup_net
[   24.511166][   T12] Call Trace:
[   24.511168][   T12]  <TASK>
[   24.511171][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.511178][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.511182][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.511188][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.511194][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.511201][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.511205][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.511214][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.511217][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.511223][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   24.511227][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.511234][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   24.511242][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.511245][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.511247][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.511256][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.511258][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   24.511264][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.511269][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.511277][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.511283][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.511285][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.511291][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.511294][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.511302][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.511309][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.511312][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.511322][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.511326][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.511329][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.511332][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.511339][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.511341][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.511347][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.511354][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.511356][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   24.511360][   T12]  ? kthread (kernel/kthread.c:436)
[   24.511363][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   24.511366][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   24.511374][   T12]  _printk (kernel/printk/printk.c:2504)
[   24.511380][   T12]  ? snapshot_read.cold (user.c:?)
[   24.511388][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   24.511392][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   24.511399][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   24.511403][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   24.511410][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.511414][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   24.511419][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   24.511421][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.511425][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   24.511430][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   24.511438][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   24.511444][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   24.511466][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   24.511481][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   24.511496][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   24.511502][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   24.511508][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   24.511510][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.511515][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   24.511523][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   24.511529][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.511535][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.511538][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.511545][   T12]  process_one_work (kernel/workqueue.c:3387)
[   24.511557][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   24.511562][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.511577][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   24.511590][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   24.511593][   T12]  kthread (kernel/kthread.c:436)
[   24.511596][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.511599][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   24.511604][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.511609][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   24.511615][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.511619][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   24.511624][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.588675][  T567] softirqs last disabled at (14850): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   25.588687][  T567] Preemption disabled at:
| [   25.588688][  T567] 0x0
| [   25.588701][  T567] Tainted: [W]=WARN
[   25.588702][  T567] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.588705][  T567] Call Trace:
[   25.588707][  T567]  <TASK>
[   25.588709][  T567]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.588717][  T567]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.588723][  T567]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.588729][  T567]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.588736][  T567]  __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))
[   25.588740][  T567]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.588748][  T567]  ? 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)
[   25.588752][  T567]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.588757][  T567]  put_chars (drivers/char/virtio_console.c:1176)
[   25.588761][  T567]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.588766][  T567]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.588771][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.588775][  T567]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.588781][  T567]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.588785][  T567]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   25.588788][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.588790][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.588798][  T567]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.588800][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.588807][  T567]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.588814][  T567]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.588820][  T567]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.588823][  T567]  ? 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))
[   25.588828][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.588832][  T567]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.588839][  T567]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.588846][  T567]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.588848][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.588858][  T567]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.588862][  T567]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.588864][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.588868][  T567]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.588874][  T567]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.588877][  T567]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.588882][  T567]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.588889][  T567]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.588892][  T567]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.588896][  T567]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.588899][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.588905][  T567]  _printk (kernel/printk/printk.c:2504)
[   25.588911][  T567]  ? snapshot_read.cold (user.c:?)
[   25.588924][  T567] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   25.588942][  T567] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   25.588964][  T567] br_device_event (net/bridge/br.c:111) bridge
[   25.588977][  T567]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   25.588983][  T567]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   25.588994][  T567]  notifier_call_chain (kernel/notifier.c:85)
[   25.589003][  T567]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   25.589011][  T567]  ? netif_change_name (net/core/dev.c:1517)
[   25.589017][  T567]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   25.589021][  T567]  ? __kernel_text_address (kernel/extable.c:79)
[   25.589025][  T567]  ? write_profile (profile.c:?)
[   25.589028][  T567]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   25.589035][  T567]  netif_change_flags (net/core/dev.c:9882)
[   25.589042][  T567]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   25.589048][  T567]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.589052][  T567]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.589054][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.589056][  T567]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.589061][  T567]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.589065][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.589068][  T567]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.589072][  T567]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.589076][  T567]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.589078][  T567]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.589083][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.589086][  T567]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   25.589090][  T567]  ? ___sys_sendmsg (net/socket.c:2757)
[   25.589097][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.589100][  T567]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.589105][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.589108][  T567]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.589111][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.589113][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.589117][  T567]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.589122][  T567]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   25.589124][  T567]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.589128][  T567]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.589134][  T567]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.589144][  T567]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.589154][  T567]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.589166][  T567]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.589169][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.589177][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.589180][  T567]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.589183][  T567]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.589186][  T567]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.589192][  T567]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.589196][  T567]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.589201][  T567]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.589203][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.589211][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.589214][  T567]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.589220][  T567]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.589223][  T567]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.589228][  T567]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.589239][  T567]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.589242][  T567]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.589249][  T567]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.589256][  T567]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.589260][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.589268][  T567]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.589274][  T567]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.589281][  T567]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   25.589290][  T567]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   25.589294][  T567]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.589297][  T567]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   25.589300][  T567]  ? move_addr_to_kernel (net/socket.c:258)
[   25.589313][  T567]  ___sys_sendmsg (net/socket.c:2767)
[   25.589317][  T567]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.589346][  T567]  __sys_sendmsg (net/socket.c:2799)
[   25.589351][  T567]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.589362][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.589368][  T567]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.589372][  T567]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.589376][  T567]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.589380][  T567] RIP: 0033:0x7f23717ba54e
[   25.589383][  T567] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.589386][  T567] RSP: 002b:00007fff3e9dfc00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.589390][  T567] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f23717ba54e
[   25.589391][  T567] RDX: 0000000000000000 RSI: 00007fff3e9dfcb0 RDI: 0000000000000005
[   25.589393][  T567] RBP: 00007fff3e9dfc10 R08: 0000000000000000 R09: 0000000000000000
[   25.589394][  T567] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912f5c


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