======================================
| [   11.055769][  T239] softirqs last disabled at (20701): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.055771][  T239] Preemption disabled at:
| [   11.055772][  T239] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.055781][  T239] Tainted: [W]=WARN
[   11.055782][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.055784][  T239] Call Trace:
[   11.055785][  T239]  <TASK>
[   11.055787][  T239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.055793][  T239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.055795][  T239]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.055799][  T239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.055804][  T239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.055809][  T239]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.055811][  T239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.055817][  T239]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.055820][  T239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.055823][  T239]  put_chars (drivers/char/virtio_console.c:1176)
[   11.055826][  T239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.055827][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.055832][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.055835][  T239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.055839][  T239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.055842][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.055847][  T239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.055850][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.055855][  T239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.055859][  T239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.055861][  T239]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.055864][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.055866][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.055870][  T239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.055875][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.055876][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.055882][  T239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.055885][  T239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.055886][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.055889][  T239]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.055892][  T239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.055894][  T239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.055897][  T239]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.055901][  T239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.055907][  T239]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.055911][  T239]  _printk (kernel/printk/printk.c:2504)
[   11.055915][  T239]  ? snapshot_read.cold (user.c:?)
[   11.055921][  T239]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   11.055924][  T239] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   11.055927][  T239]  do_one_initcall (init/main.c:1357)
[   11.055930][  T239]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.055935][  T239]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.055938][  T239]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.055943][  T239]  do_init_module (kernel/module/main.c:3117)
[   11.055947][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.055951][  T239]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.055954][  T239]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.055958][  T239]  load_module (kernel/module/main.c:3593)
[   11.055966][  T239]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.055970][  T239]  ? __ia32_sys_fsconfig (??:?)
[   11.055972][  T239]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.055976][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.055978][  T239]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.055981][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.055985][  T239]  init_module_from_file (kernel/module/main.c:3790)
[   11.055988][  T239]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.055997][  T239]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.056000][  T239]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.056004][  T239]  idempotent_init_module (kernel/module/main.c:3802)
[   11.056007][  T239]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.056014][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.056016][  T239]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.056022][  T239]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.056024][  T239]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.056028][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.056030][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.056032][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.056035][  T239] RIP: 0033:0x7f25431fb37d
[   11.056038][  T239] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   11.056040][  T239] RSP: 002b:00007ffd503565d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.056043][  T239] RAX: ffffffffffffffda RBX: 0000558f68fb5810 RCX: 00007f25431fb37d
[   11.056044][  T239] RDX: 0000000000000000 RSI: 0000558f30e20ffd RDI: 0000000000000000
[   11.056045][  T239] RBP: 00007ffd50356670 R08: 0000000000000000 R09: 0000000000000000
[   11.056046][  T239] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558f30e20ffd
[   11.056047][  T239] R13: 0000558f68fb5960 R14: 0000000000040000 R15: 0000000000000000
| [   12.309821][  T285] softirqs last disabled at (12072): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.309823][  T285] Preemption disabled at:
| [   12.309824][  T285] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.309833][  T285] Tainted: [W]=WARN
[   12.309834][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.309836][  T285] Call Trace:
[   12.309838][  T285]  <TASK>
[   12.309840][  T285]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.309845][  T285]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.309848][  T285]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.309852][  T285]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.309856][  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)
[   12.309862][  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))
[   12.309864][  T285]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.309870][  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)
[   12.309872][  T285]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.309876][  T285]  put_chars (drivers/char/virtio_console.c:1176)
[   12.309878][  T285]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.309883][  T285]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.309887][  T285]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.309889][  T285]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.309891][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.309893][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.309897][  T285]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.309899][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.309902][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.309906][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.309910][  T285]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.309914][  T285]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.309916][  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))
[   12.309919][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.309921][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.309925][  T285]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.309930][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.309931][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.309937][  T285]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.309940][  T285]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.309942][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.309944][  T285]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.309948][  T285]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.309949][  T285]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.309953][  T285]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.309957][  T285]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.309959][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.309961][  T285]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.309965][  T285]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.309969][  T285]  _printk (kernel/printk/printk.c:2504)
[   12.309972][  T285]  ? snapshot_read.cold (user.c:?)
[   12.309976][  T285]  ? br_multicast_flood (??:?) bridge
[   12.309990][  T285]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.309991][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.309993][  T285]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.309997][  T285] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.310008][  T285] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.310016][  T285] new_nbp (net/bridge/br_if.c:449) bridge
[   12.310026][  T285] br_add_if (net/bridge/br_if.c:592) bridge
[   12.310033][  T285]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.310037][  T285]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.310040][  T285]  ? __kernel_text_address (kernel/extable.c:79)
[   12.310044][  T285]  do_set_master (net/core/rtnetlink.c:3071)
[   12.310048][  T285]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.310051][  T285]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.310055][  T285]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.310056][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.310059][  T285]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.310062][  T285]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.310065][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.310067][  T285]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.310069][  T285]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.310072][  T285]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.310074][  T285]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.310077][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.310078][  T285]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.310082][  T285]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.310086][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.310088][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.310091][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.310093][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.310095][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.310096][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.310099][  T285]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.310103][  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)
[   12.310105][  T285]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.310107][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.310110][  T285]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.310112][  T285]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.310117][  T285]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.310122][  T285]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.310127][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.310129][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.310134][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.310136][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.310138][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.310140][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.310143][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.310146][  T285]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.310151][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.310152][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.310158][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.310160][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.310164][  T285]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.310166][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.310169][  T285]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.310176][  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))
[   12.310178][  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))
[   12.310182][  T285]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.310186][  T285]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.310188][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.310192][  T285]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.310196][  T285]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.310200][  T285]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.310205][  T285]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.310207][  T285]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.310210][  T285]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.310211][  T285]  ? move_addr_to_kernel (net/socket.c:258)
[   12.310219][  T285]  ___sys_sendmsg (net/socket.c:2767)
[   12.310222][  T285]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.310237][  T285]  __sys_sendmsg (net/socket.c:2799)
[   12.310240][  T285]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.310246][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.310250][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.310252][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.310256][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.310258][  T285] RIP: 0033:0x7f1dd64d854e
[   12.310261][  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
[   12.310263][  T285] RSP: 002b:00007ffc86f738c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.310266][  T285] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1dd64d854e
[   12.310267][  T285] RDX: 0000000000000000 RSI: 00007ffc86f73970 RDI: 0000000000000005
[   12.310268][  T285] RBP: 00007ffc86f738d0 R08: 0000000000000000 R09: 0000000000000000
[   12.310269][  T285] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918240
[   12.310270][  T285] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc86f74030
| [   13.959932][  T345] softirqs last disabled at (13406): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.959934][  T345] Preemption disabled at:
| [   13.959935][  T345] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.959944][  T345] Tainted: [W]=WARN
[   13.959945][  T345] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.959947][  T345] Call Trace:
[   13.959949][  T345]  <TASK>
[   13.959950][  T345]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.959956][  T345]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.959959][  T345]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.959963][  T345]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.959968][  T345]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.959973][  T345]  __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))
[   13.959975][  T345]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.959981][  T345]  ? 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)
[   13.959984][  T345]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.959987][  T345]  put_chars (drivers/char/virtio_console.c:1176)
[   13.959989][  T345]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.959991][  T345]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.959994][  T345]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.959999][  T345]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.960001][  T345]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.960005][  T345]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.960008][  T345]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.960010][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960011][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960015][  T345]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.960018][  T345]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.960021][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960023][  T345]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.960027][  T345]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.960031][  T345]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.960033][  T345]  ? 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))
[   13.960036][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960039][  T345]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.960043][  T345]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.960047][  T345]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.960049][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960054][  T345]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.960057][  T345]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.960059][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960061][  T345]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.960065][  T345]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.960067][  T345]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.960070][  T345]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.960075][  T345]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.960077][  T345]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.960080][  T345]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.960084][  T345]  _printk (kernel/printk/printk.c:2504)
[   13.960087][  T345]  ? snapshot_read.cold (user.c:?)
[   13.960091][  T345]  ? br_multicast_flood (??:?) bridge
[   13.960105][  T345]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.960106][  T345]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.960107][  T345]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.960112][  T345] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.960123][  T345] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.960131][  T345] new_nbp (net/bridge/br_if.c:449) bridge
[   13.960141][  T345] br_add_if (net/bridge/br_if.c:592) bridge
[   13.960151][  T345]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.960155][  T345]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.960158][  T345]  ? __kernel_text_address (kernel/extable.c:79)
[   13.960161][  T345]  do_set_master (net/core/rtnetlink.c:3071)
[   13.960166][  T345]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.960169][  T345]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.960173][  T345]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.960174][  T345]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.960176][  T345]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.960180][  T345]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.960182][  T345]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.960184][  T345]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.960187][  T345]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.960190][  T345]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.960191][  T345]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.960194][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960196][  T345]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.960199][  T345]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.960204][  T345]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.960206][  T345]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.960208][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960211][  T345]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.960212][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960214][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960216][  T345]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.960220][  T345]  ? __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)
[   13.960224][  T345]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.960226][  T345]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.960229][  T345]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.960231][  T345]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.960236][  T345]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.960241][  T345]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.960246][  T345]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.960248][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960253][  T345]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.960255][  T345]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.960257][  T345]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.960258][  T345]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.960262][  T345]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.960264][  T345]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.960267][  T345]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.960269][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960273][  T345]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.960275][  T345]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.960278][  T345]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.960280][  T345]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.960283][  T345]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.960295][  T345]  ? 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))
[   13.960297][  T345]  ? 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))
[   13.960301][  T345]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.960305][  T345]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.960308][  T345]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.960312][  T345]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.960316][  T345]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.960320][  T345]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.960325][  T345]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.960327][  T345]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.960330][  T345]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.960331][  T345]  ? move_addr_to_kernel (net/socket.c:258)
[   13.960339][  T345]  ___sys_sendmsg (net/socket.c:2767)
[   13.960341][  T345]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.960357][  T345]  __sys_sendmsg (net/socket.c:2799)
[   13.960360][  T345]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.960366][  T345]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.960370][  T345]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.960372][  T345]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.960375][  T345]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.960378][  T345] RIP: 0033:0x7efeb372954e
[   13.960381][  T345] 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
[   13.960383][  T345] RSP: 002b:00007ffff6495df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.960386][  T345] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efeb372954e
[   13.960387][  T345] RDX: 0000000000000000 RSI: 00007ffff6495ea0 RDI: 0000000000000005
[   13.960388][  T345] RBP: 00007ffff6495e00 R08: 0000000000000000 R09: 0000000000000000
[   13.960389][  T345] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918242
[   13.960390][  T345] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff6496560
| [   15.455998][  T400] softirqs last disabled at (12606): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.456001][  T400] Preemption disabled at:
| [   15.456001][  T400] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.456011][  T400] Tainted: [W]=WARN
[   15.456012][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.456014][  T400] Call Trace:
[   15.456015][  T400]  <TASK>
[   15.456017][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.456024][  T400]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.456026][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.456031][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.456035][  T400]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.456040][  T400]  __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))
[   15.456043][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.456048][  T400]  ? 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)
[   15.456051][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.456055][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   15.456057][  T400]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.456059][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.456062][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.456067][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.456069][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.456073][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.456076][  T400]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.456078][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456079][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456083][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.456085][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.456089][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456091][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.456095][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.456099][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.456101][  T400]  ? 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))
[   15.456104][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456107][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.456111][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.456115][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.456117][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456122][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.456125][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.456127][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456129][  T400]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.456133][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.456135][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.456138][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.456143][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.456145][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.456151][  T400]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.456154][  T400]  _printk (kernel/printk/printk.c:2504)
[   15.456158][  T400]  ? snapshot_read.cold (user.c:?)
[   15.456162][  T400]  ? br_multicast_flood (??:?) bridge
[   15.456176][  T400]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.456178][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.456179][  T400]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.456184][  T400] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.456195][  T400] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.456204][  T400] new_nbp (net/bridge/br_if.c:449) bridge
[   15.456213][  T400] br_add_if (net/bridge/br_if.c:592) bridge
[   15.456221][  T400]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.456225][  T400]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.456228][  T400]  ? __kernel_text_address (kernel/extable.c:79)
[   15.456232][  T400]  do_set_master (net/core/rtnetlink.c:3071)
[   15.456236][  T400]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.456240][  T400]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.456243][  T400]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.456244][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.456246][  T400]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.456250][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.456252][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.456254][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.456257][  T400]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.456260][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.456262][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.456264][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456266][  T400]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   15.456269][  T400]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.456274][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.456276][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.456279][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456281][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.456283][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456284][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456287][  T400]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.456290][  T400]  ? __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)
[   15.456298][  T400]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.456300][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.456304][  T400]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.456305][  T400]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.456310][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.456316][  T400]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.456321][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.456323][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456327][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.456329][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.456332][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.456333][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.456337][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.456340][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.456343][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.456344][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456348][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.456350][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.456354][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.456356][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.456359][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.456365][  T400]  ? 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))
[   15.456366][  T400]  ? 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))
[   15.456371][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.456374][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.456377][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.456381][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.456385][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.456389][  T400]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.456394][  T400]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.456396][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.456399][  T400]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.456400][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   15.456408][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   15.456411][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.456426][  T400]  __sys_sendmsg (net/socket.c:2799)
[   15.456429][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.456436][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.456439][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.456442][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.456445][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.456448][  T400] RIP: 0033:0x7eff4dc3254e
[   15.456451][  T400] 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
[   15.456453][  T400] RSP: 002b:00007ffdc0de1100 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.456456][  T400] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007eff4dc3254e
[   15.456457][  T400] RDX: 0000000000000000 RSI: 00007ffdc0de11b0 RDI: 0000000000000005
[   15.456458][  T400] RBP: 00007ffdc0de1110 R08: 0000000000000000 R09: 0000000000000000
[   15.456459][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918243
[   15.456460][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdc0de1870
| [   27.519240][    C2] softirqs last disabled at (1101863): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.519242][    C2] Preemption disabled at:
| [   27.519243][    C2] 0x0
| [   27.519253][    C2] Tainted: [W]=WARN
[   27.519254][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.519256][    C2] Call Trace:
[   27.519257][    C2]  <IRQ>
[   27.519259][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.519264][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.519268][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.519271][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.519274][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519278][    C2]  __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))
[   27.519281][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.519284][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.519287][    C2]  ? 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)
[   27.519289][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.519291][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   27.519293][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.519295][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.519298][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.519302][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.519303][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519305][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.519307][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.519310][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.519312][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519313][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519315][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.519317][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.519319][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.519321][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.519324][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.519326][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.519327][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.519329][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519331][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.519332][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.519334][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.519336][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.519338][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.519346][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.519348][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.519360][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.519362][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.519369][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.519375][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   27.519379][    C2]  _printk (kernel/printk/printk.c:2504)
[   27.519382][    C2]  ? snapshot_read.cold (user.c:?)
[   27.519384][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.519388][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.519390][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.519392][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.519394][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.519397][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.519399][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.519401][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.519403][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.519404][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.519411][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519413][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.519415][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.519421][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.519423][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.519429][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.519435][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.519441][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.519444][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.519446][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.519449][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.519451][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.519453][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519455][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.519457][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.519464][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.519466][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.519468][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.519471][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.519473][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.519474][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.519477][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519478][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.519480][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.519482][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.519484][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.519485][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.519487][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.519490][    C2]  </IRQ>
[   27.519490][    C2]  <TASK>
[   27.519491][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.519493][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.519495][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.519497][    C2] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.519499][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.519503][    C2] RAX: 000000000010d025 RBX: ff11000001bec6c0 RCX: ffffffffab2f0307
[   27.519504][    C2] RDX: ff11000001bec6c0 RSI: ffffffffae038af6 RDI: ffffffffada8d8e0
[   27.519505][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.519506][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.519507][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.519508][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.519511][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.519513][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.519515][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.519517][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.519518][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.519520][    C2]  ? default_idle_call (kernel/sched/idle.c:129)
[   27.519522][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.519524][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.519526][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.519528][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.519529][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.519531][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.585257][    C2]
| [   27.585323][    C2]
| [   27.585323][    C2] stack backtrace:
| [   27.585501][    C2] Tainted: [W]=WARN
[   27.585502][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.585503][    C2] Call Trace:
[   27.585504][    C2]  <IRQ>
[   27.585506][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.585510][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.585513][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.585516][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.585517][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.585519][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.585521][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.585523][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.585530][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.585533][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.585535][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.585541][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.585543][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.585549][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.585555][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.585562][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.585564][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.585565][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.585569][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.585571][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.585573][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.585575][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.585577][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.585583][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.585585][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.585588][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.585590][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.585592][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.585594][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.585596][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.585598][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.585600][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.585601][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.585603][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.585605][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.585606][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.585608][    C2]  </IRQ>
[   27.585608][    C2]  <TASK>
[   27.585609][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.585611][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.585612][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.585614][    C2] Code: 48 8b 3d 94 d2 f5 01 e8 1f 00 00 00 48 2b 05 58 93 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 86 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 d2 f5 01 	mov    0x1f5d294(%rip),%rdi        # 0x1f5d29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 93 95 00 	sub    0x959358(%rip),%rax        # 0x95936b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 86 11 00 	verw   0x118613(%rip)        # 0x11863b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.585616][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.585618][    C2] RAX: 000000000010d025 RBX: ff11000001bec6c0 RCX: ffffffffab2f0307
[   27.585619][    C2] RDX: ff11000001bec6c0 RSI: ffffffffae038af6 RDI: ffffffffada8d8e0
[   27.585620][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.585621][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.585622][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.585623][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.585626][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.585627][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.585629][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.585631][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.585632][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.585634][    C2]  ? default_idle_call (kernel/sched/idle.c:129)
[   27.585635][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.585637][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.585639][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.585640][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.585642][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.585644][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.664597][   T12] softirqs last disabled at (31694): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   28.664599][   T12] Preemption disabled at:
| [   28.664600][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.664612][   T12] Tainted: [W]=WARN
[   28.664613][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.664615][   T12] Workqueue: netns cleanup_net
[   28.664621][   T12] Call Trace:
[   28.664623][   T12]  <TASK>
[   28.664624][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.664629][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.664631][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.664635][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.664638][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664642][   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))
[   28.664646][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.664648][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.664652][   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)
[   28.664654][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.664656][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   28.664657][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   28.664659][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.664661][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.664664][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.664667][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.664668][   T12]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   28.664670][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.664672][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664674][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664675][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.664678][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.664680][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.664682][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664684][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664685][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664687][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.664689][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.664691][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.664693][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.664696][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.664698][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.664700][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.664701][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664703][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.664704][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.664706][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   28.664708][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.664710][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.664712][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.664714][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.664716][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   28.664719][   T12]  ? kthread (kernel/kthread.c:436)
[   28.664721][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   28.664724][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   28.664726][   T12]  _printk (kernel/printk/printk.c:2504)
[   28.664729][   T12]  ? snapshot_read.cold (user.c:?)
[   28.664732][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.664734][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.664736][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.664738][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   28.664740][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664742][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.664743][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   28.664746][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.664747][   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)
[   28.664750][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.664753][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.664755][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   28.664769][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   28.664777][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   28.664785][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   28.664787][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   28.664789][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   28.664792][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   28.664794][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.664796][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.664797][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.664800][   T12]  process_one_work (kernel/workqueue.c:3387)
[   28.664803][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   28.664805][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.664806][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.664809][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.664812][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   28.664814][   T12]  kthread (kernel/kthread.c:436)
[   28.664815][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.664817][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.664818][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.664820][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   28.664822][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.664825][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars