======================================
| [   10.646261][  T231] softirqs last disabled at (25243): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.646263][  T231] Preemption disabled at:
| [   10.646264][  T231] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.646273][  T231] Tainted: [W]=WARN
[   10.646274][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.646276][  T231] Call Trace:
[   10.646278][  T231]  <TASK>
[   10.646279][  T231]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.646285][  T231]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.646287][  T231]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.646292][  T231]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.646296][  T231]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.646301][  T231]  __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))
[   10.646304][  T231]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.646311][  T231]  ? 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)
[   10.646316][  T231]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.646321][  T231]  put_chars (drivers/char/virtio_console.c:1176)
[   10.646324][  T231]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.646326][  T231]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.646331][  T231]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.646334][  T231]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.646338][  T231]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.646341][  T231]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.646346][  T231]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.646348][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.646353][  T231]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.646357][  T231]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.646359][  T231]  ? 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))
[   10.646362][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.646364][  T231]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.646368][  T231]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.646372][  T231]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.646374][  T231]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.646379][  T231]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.646381][  T231]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.646383][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.646385][  T231]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.646389][  T231]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.646391][  T231]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.646394][  T231]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.646398][  T231]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.646404][  T231]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.646408][  T231]  _printk (kernel/printk/printk.c:2504)
[   10.646411][  T231]  ? snapshot_read.cold (user.c:?)
[   10.646418][  T231]  ? 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)
[   10.646421][  T231] 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
[   10.646424][  T231]  do_one_initcall (init/main.c:1357)
[   10.646426][  T231]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.646431][  T231]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.646434][  T231]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.646439][  T231]  do_init_module (kernel/module/main.c:3117)
[   10.646442][  T231]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.646447][  T231]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.646450][  T231]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.646454][  T231]  load_module (kernel/module/main.c:3593)
[   10.646461][  T231]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.646465][  T231]  ? __ia32_sys_fsconfig (??:?)
[   10.646468][  T231]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.646472][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.646473][  T231]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.646476][  T231]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.646480][  T231]  init_module_from_file (kernel/module/main.c:3790)
[   10.646483][  T231]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.646491][  T231]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.646495][  T231]  ? 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)
[   10.646498][  T231]  idempotent_init_module (kernel/module/main.c:3802)
[   10.646501][  T231]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.646507][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.646510][  T231]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.646516][  T231]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.646518][  T231]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.646521][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.646523][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.646526][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.646528][  T231] RIP: 0033:0x7f1fd9dbb37d
[   10.646531][  T231] 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
[   10.646533][  T231] RSP: 002b:00007ffc863bb478 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.646536][  T231] RAX: ffffffffffffffda RBX: 0000563eb00b9810 RCX: 00007f1fd9dbb37d
[   10.646537][  T231] RDX: 0000000000000000 RSI: 0000563e9973affd RDI: 0000000000000000
[   10.646538][  T231] RBP: 00007ffc863bb510 R08: 0000000000000000 R09: 0000000000000000
[   10.646539][  T231] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563e9973affd
[   10.646539][  T231] R13: 0000563eb00b9960 R14: 0000000000040000 R15: 0000000000000000
| [   11.902050][  T277] softirqs last disabled at (12074): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.902052][  T277] Preemption disabled at:
| [   11.902053][  T277] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.902062][  T277] Tainted: [W]=WARN
[   11.902063][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.902064][  T277] Call Trace:
[   11.902066][  T277]  <TASK>
[   11.902067][  T277]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.902074][  T277]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.902076][  T277]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.902080][  T277]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.902085][  T277]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.902090][  T277]  __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))
[   11.902092][  T277]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.902098][  T277]  ? 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)
[   11.902101][  T277]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.902104][  T277]  put_chars (drivers/char/virtio_console.c:1176)
[   11.902107][  T277]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.902111][  T277]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.902115][  T277]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.902118][  T277]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.902120][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902121][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902125][  T277]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.902128][  T277]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.902131][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902134][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.902138][  T277]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.902142][  T277]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.902144][  T277]  ? 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))
[   11.902147][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902149][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.902153][  T277]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.902158][  T277]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.902159][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902165][  T277]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.902167][  T277]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.902169][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902172][  T277]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.902175][  T277]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.902177][  T277]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.902180][  T277]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.902184][  T277]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.902187][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.902188][  T277]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.902193][  T277]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.902196][  T277]  _printk (kernel/printk/printk.c:2504)
[   11.902200][  T277]  ? snapshot_read.cold (user.c:?)
[   11.902204][  T277]  ? br_multicast_flood (??:?) bridge
[   11.902216][  T277]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.902218][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.902219][  T277]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.902223][  T277] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.902234][  T277] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.902242][  T277] new_nbp (net/bridge/br_if.c:449) bridge
[   11.902251][  T277] br_add_if (net/bridge/br_if.c:592) bridge
[   11.902258][  T277]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.902263][  T277]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.902266][  T277]  ? __kernel_text_address (kernel/extable.c:79)
[   11.902270][  T277]  do_set_master (net/core/rtnetlink.c:3071)
[   11.902274][  T277]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.902277][  T277]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.902280][  T277]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.902282][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.902284][  T277]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.902288][  T277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.902291][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.902293][  T277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.902295][  T277]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.902298][  T277]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.902300][  T277]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.902303][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902304][  T277]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.902307][  T277]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.902317][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.902320][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.902323][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902326][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.902327][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902329][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902331][  T277]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.902335][  T277]  ? __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)
[   11.902337][  T277]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.902339][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.902342][  T277]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.902344][  T277]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.902349][  T277]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.902354][  T277]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.902359][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.902361][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902365][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.902367][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.902369][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.902371][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.902375][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.902377][  T277]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.902380][  T277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.902381][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902386][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.902387][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.902391][  T277]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.902393][  T277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.902395][  T277]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.902401][  T277]  ? 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))
[   11.902403][  T277]  ? 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))
[   11.902407][  T277]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.902411][  T277]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.902413][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.902418][  T277]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.902421][  T277]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.902425][  T277]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.902430][  T277]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.902432][  T277]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.902435][  T277]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.902437][  T277]  ? move_addr_to_kernel (net/socket.c:258)
[   11.902444][  T277]  ___sys_sendmsg (net/socket.c:2767)
[   11.902447][  T277]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.902462][  T277]  __sys_sendmsg (net/socket.c:2799)
[   11.902465][  T277]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.902471][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.902475][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.902478][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.902481][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.902483][  T277] RIP: 0033:0x7f39240ed54e
[   11.902486][  T277] 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
[   11.902488][  T277] RSP: 002b:00007ffc31a01d80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.902491][  T277] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f39240ed54e
[   11.902492][  T277] RDX: 0000000000000000 RSI: 00007ffc31a01e30 RDI: 0000000000000005
[   11.902493][  T277] RBP: 00007ffc31a01d90 R08: 0000000000000000 R09: 0000000000000000
[   11.902494][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dbd6
[   11.902495][  T277] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc31a024f0
| [   13.636588][  T338] softirqs last disabled at (12662): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.636590][  T338] Preemption disabled at:
| [   13.636591][  T338] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.636600][  T338] Tainted: [W]=WARN
[   13.636601][  T338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.636603][  T338] Call Trace:
[   13.636604][  T338]  <TASK>
[   13.636606][  T338]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.636612][  T338]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.636614][  T338]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.636619][  T338]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.636623][  T338]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.636628][  T338]  __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))
[   13.636630][  T338]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.636635][  T338]  ? 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)
[   13.636638][  T338]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.636641][  T338]  put_chars (drivers/char/virtio_console.c:1176)
[   13.636643][  T338]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.636645][  T338]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.636648][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.636653][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.636655][  T338]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.636659][  T338]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.636662][  T338]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.636663][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636665][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636669][  T338]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.636671][  T338]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.636674][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.636676][  T338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.636680][  T338]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.636684][  T338]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.636686][  T338]  ? 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))
[   13.636689][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.636692][  T338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.636695][  T338]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.636699][  T338]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.636701][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636707][  T338]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.636709][  T338]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.636711][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.636713][  T338]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.636717][  T338]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.636719][  T338]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.636722][  T338]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.636726][  T338]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.636728][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.636731][  T338]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.636735][  T338]  _printk (kernel/printk/printk.c:2504)
[   13.636738][  T338]  ? snapshot_read.cold (user.c:?)
[   13.636742][  T338]  ? br_multicast_flood (??:?) bridge
[   13.636755][  T338]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.636757][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.636758][  T338]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.636762][  T338] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.636772][  T338] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.636781][  T338] new_nbp (net/bridge/br_if.c:449) bridge
[   13.636790][  T338] br_add_if (net/bridge/br_if.c:592) bridge
[   13.636796][  T338]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.636801][  T338]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.636804][  T338]  ? __kernel_text_address (kernel/extable.c:79)
[   13.636807][  T338]  do_set_master (net/core/rtnetlink.c:3071)
[   13.636812][  T338]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.636815][  T338]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.636818][  T338]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.636819][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.636821][  T338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.636825][  T338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.636827][  T338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.636829][  T338]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.636831][  T338]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.636834][  T338]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.636836][  T338]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.636838][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636840][  T338]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.636843][  T338]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.636848][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.636850][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.636853][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.636855][  T338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.636856][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.636858][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.636860][  T338]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.636864][  T338]  ? __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)
[   13.636867][  T338]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.636869][  T338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.636872][  T338]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.636874][  T338]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.636879][  T338]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.636884][  T338]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.636889][  T338]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.636891][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636895][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.636897][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.636904][  T338]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.636905][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.636909][  T338]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.636911][  T338]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.636914][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.636915][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636919][  T338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.636921][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.636925][  T338]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.636926][  T338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.636929][  T338]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.636935][  T338]  ? 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))
[   13.636936][  T338]  ? 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))
[   13.636940][  T338]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.636944][  T338]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.636946][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.636950][  T338]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.636954][  T338]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.636958][  T338]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.636963][  T338]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.636965][  T338]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.636968][  T338]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.636969][  T338]  ? move_addr_to_kernel (net/socket.c:258)
[   13.636976][  T338]  ___sys_sendmsg (net/socket.c:2767)
[   13.636979][  T338]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.636994][  T338]  __sys_sendmsg (net/socket.c:2799)
[   13.636997][  T338]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.637003][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.637006][  T338]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.637008][  T338]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.637011][  T338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.637013][  T338] RIP: 0033:0x7fd595b5854e
[   13.637017][  T338] 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
[   13.637019][  T338] RSP: 002b:00007ffd5d4b3880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.637021][  T338] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd595b5854e
[   13.637023][  T338] RDX: 0000000000000000 RSI: 00007ffd5d4b3930 RDI: 0000000000000005
[   13.637024][  T338] RBP: 00007ffd5d4b3890 R08: 0000000000000000 R09: 0000000000000000
[   13.637024][  T338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dbd7
[   13.637025][  T338] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd5d4b3ff0
| [   15.084720][  T392] softirqs last disabled at (12520): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.084723][  T392] Preemption disabled at:
| [   15.084723][  T392] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.084733][  T392] Tainted: [W]=WARN
[   15.084734][  T392] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.084736][  T392] Call Trace:
[   15.084737][  T392]  <TASK>
[   15.084739][  T392]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.084745][  T392]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.084747][  T392]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.084752][  T392]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.084756][  T392]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.084761][  T392]  __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))
[   15.084764][  T392]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.084770][  T392]  ? 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)
[   15.084772][  T392]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.084775][  T392]  put_chars (drivers/char/virtio_console.c:1176)
[   15.084778][  T392]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.084780][  T392]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.084783][  T392]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.084787][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.084790][  T392]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.084793][  T392]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.084796][  T392]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.084798][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.084800][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.084804][  T392]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.084806][  T392]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.084809][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.084811][  T392]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.084815][  T392]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.084819][  T392]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.084821][  T392]  ? 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))
[   15.084824][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.084826][  T392]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.084830][  T392]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.084835][  T392]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.084837][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.084842][  T392]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.084845][  T392]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.084847][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.084849][  T392]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.084853][  T392]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.084855][  T392]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.084858][  T392]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.084862][  T392]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.084865][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.084867][  T392]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.084871][  T392]  _printk (kernel/printk/printk.c:2504)
[   15.084875][  T392]  ? snapshot_read.cold (user.c:?)
[   15.084879][  T392]  ? br_multicast_flood (??:?) bridge
[   15.084898][  T392]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.084899][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.084900][  T392]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.084905][  T392] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.084915][  T392] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.084923][  T392] new_nbp (net/bridge/br_if.c:449) bridge
[   15.084932][  T392] br_add_if (net/bridge/br_if.c:592) bridge
[   15.084939][  T392]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.084944][  T392]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.084947][  T392]  ? __kernel_text_address (kernel/extable.c:79)
[   15.084950][  T392]  do_set_master (net/core/rtnetlink.c:3071)
[   15.084955][  T392]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.084958][  T392]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.084961][  T392]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.084962][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.084964][  T392]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.084968][  T392]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.084970][  T392]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.084972][  T392]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.084974][  T392]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.084978][  T392]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.084979][  T392]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.084982][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.084984][  T392]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.084987][  T392]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.084992][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.084993][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.084996][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.084998][  T392]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.085000][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.085002][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.085004][  T392]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.085008][  T392]  ? __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)
[   15.085011][  T392]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.085013][  T392]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.085016][  T392]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.085018][  T392]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.085023][  T392]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.085028][  T392]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.085033][  T392]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.085034][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.085039][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.085041][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.085043][  T392]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.085044][  T392]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.085048][  T392]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.085050][  T392]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.085053][  T392]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.085054][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.085059][  T392]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.085060][  T392]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.085064][  T392]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.085065][  T392]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.085068][  T392]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.085074][  T392]  ? 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))
[   15.085076][  T392]  ? 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))
[   15.085080][  T392]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.085083][  T392]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.085086][  T392]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.085090][  T392]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.085093][  T392]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.085097][  T392]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.085102][  T392]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.085105][  T392]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.085107][  T392]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.085108][  T392]  ? move_addr_to_kernel (net/socket.c:258)
[   15.085115][  T392]  ___sys_sendmsg (net/socket.c:2767)
[   15.085118][  T392]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.085133][  T392]  __sys_sendmsg (net/socket.c:2799)
[   15.085136][  T392]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.085142][  T392]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.085145][  T392]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.085148][  T392]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.085151][  T392]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.085154][  T392] RIP: 0033:0x7f5ed108d54e
[   15.085157][  T392] 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
[   15.085159][  T392] RSP: 002b:00007ffdbe6b1c50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.085161][  T392] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5ed108d54e
[   15.085163][  T392] RDX: 0000000000000000 RSI: 00007ffdbe6b1d00 RDI: 0000000000000005
[   15.085164][  T392] RBP: 00007ffdbe6b1c60 R08: 0000000000000000 R09: 0000000000000000
[   15.085164][  T392] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dbd9
[   15.085165][  T392] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdbe6b23c0
| [   27.002407][    C0] softirqs last disabled at (934775): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.002409][    C0] Preemption disabled at:
| [   27.002410][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.002418][    C0] Tainted: [W]=WARN
[   27.002419][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.002421][    C0] Call Trace:
[   27.002422][    C0]  <IRQ>
[   27.002424][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.002429][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.002431][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.002434][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.002438][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.002440][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002444][    C0]  __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))
[   27.002447][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.002449][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.002453][    C0]  ? 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)
[   27.002455][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.002457][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.002458][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.002460][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.002464][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.002467][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.002469][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002470][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.002473][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.002475][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.002477][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002478][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002480][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.002482][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.002484][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.002486][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.002489][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.002490][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.002492][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.002493][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002495][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.002496][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.002498][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.002500][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.002502][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.002505][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.002506][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002508][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.002510][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.002514][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.002517][    C0]  ? snapshot_read.cold (user.c:?)
[   27.002519][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.002523][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.002525][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.002527][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.002529][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.002532][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.002534][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.002535][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.002537][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.002539][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.002551][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002553][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.002555][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.002561][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.002563][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.002569][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.002575][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.002581][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.002585][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.002586][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.002590][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.002592][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.002593][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002596][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.002597][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.002604][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.002605][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.002608][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.002610][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.002612][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.002614][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.002616][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002618][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.002620][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.002621][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.002623][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.002625][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.002626][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.002629][    C0]  </IRQ>
[   27.002630][    C0]  <TASK>
[   27.002630][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.002632][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.002634][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.002637][    C0] Code: 48 8b 3d 94 f2 f5 01 e8 1f 00 00 00 48 2b 05 58 b3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 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 f2 f5 01 	mov    0x1f5f294(%rip),%rdi        # 0x1f5f29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 95 00 	sub    0x95b358(%rip),%rax        # 0x95b36b
  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 a6 11 00 	verw   0x11a613(%rip)        # 0x11a63b
  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
[   27.002638][    C0] RSP: 0018:ffffffffaa407cf8 EFLAGS: 00000296
[   27.002641][    C0] RAX: 00000000000e4375 RBX: ffffffffaa41c600 RCX: ffffffffa74f0307
[   27.002643][    C0] RDX: ffffffffaa41c600 RSI: ffffffffaa238b1c RDI: ffffffffa9c8d8e0
[   27.002644][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.002645][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5480fa2
[   27.002645][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.002647][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.002650][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.002651][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.002653][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.002655][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.002656][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.002658][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.002660][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.002662][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.002664][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.002665][    C0]  rest_init (init/main.c:727)
[   27.002667][    C0]  ? __cpuidle_text_end (??:?)
[   27.002670][    C0]  ? rest_init (init/main.c:727)
[   27.002671][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.002675][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.002678][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.002680][    C0]  start_kernel (init/main.c:1185)
[   27.002682][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.002684][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.002686][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.072302][    C0]
| [   27.072381][    C0]
| [   27.072381][    C0] stack backtrace:
| [   27.072568][    C0] Tainted: [W]=WARN
[   27.072569][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.072570][    C0] Call Trace:
[   27.072571][    C0]  <IRQ>
[   27.072572][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.072575][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.072578][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.072581][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.072583][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.072585][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.072587][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.072589][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.072596][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072599][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.072601][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.072607][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.072608][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.072615][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.072621][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.072627][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.072629][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.072631][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.072634][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.072636][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.072638][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072640][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.072642][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.072649][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.072650][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.072653][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.072655][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.072658][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.072659][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.072661][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072663][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.072665][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.072667][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.072669][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.072670][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.072672][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.072673][    C0]  </IRQ>
[   27.072674][    C0]  <TASK>
[   27.072675][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.072676][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.072678][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.072680][    C0] Code: 48 8b 3d 94 f2 f5 01 e8 1f 00 00 00 48 2b 05 58 b3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 a6 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 f2 f5 01 	mov    0x1f5f294(%rip),%rdi        # 0x1f5f29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 b3 95 00 	sub    0x95b358(%rip),%rax        # 0x95b36b
  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 a6 11 00 	verw   0x11a613(%rip)        # 0x11a63b
  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
[   27.072681][    C0] RSP: 0018:ffffffffaa407cf8 EFLAGS: 00000296
[   27.072683][    C0] RAX: 00000000000e4375 RBX: ffffffffaa41c600 RCX: ffffffffa74f0307
[   27.072685][    C0] RDX: ffffffffaa41c600 RSI: ffffffffaa238b1c RDI: ffffffffa9c8d8e0
[   27.072686][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.072686][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5480fa2
[   27.072687][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.072689][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.072691][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.072693][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.072694][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.072696][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.072697][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.072699][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.072701][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.072703][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.072705][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.072706][    C0]  rest_init (init/main.c:727)
[   27.072708][    C0]  ? __cpuidle_text_end (??:?)
[   27.072711][    C0]  ? rest_init (init/main.c:727)
[   27.072713][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.072716][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.072719][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.072721][    C0]  start_kernel (init/main.c:1185)
[   27.072722][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.072724][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.072726][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.127943][   T12] softirqs last disabled at (34228): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   28.127945][   T12] Preemption disabled at:
| [   28.127946][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.127956][   T12] Tainted: [W]=WARN
[   28.127957][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.127959][   T12] Workqueue: netns cleanup_net
[   28.127964][   T12] Call Trace:
[   28.127965][   T12]  <TASK>
[   28.127967][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.127971][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.127973][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.127976][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.127979][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.127983][   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))
[   28.127986][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.127988][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.127991][   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)
[   28.127993][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.127994][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   28.127996][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   28.127998][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.128000][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.128002][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.128005][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.128006][   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)
[   28.128008][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.128009][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128011][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128013][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.128015][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.128018][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.128020][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128021][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128023][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128024][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.128026][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.128028][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.128030][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.128033][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.128035][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.128036][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.128038][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128040][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.128041][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.128043][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   28.128045][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.128047][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.128049][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.128051][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.128053][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   28.128056][   T12]  ? kthread (kernel/kthread.c:436)
[   28.128058][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   28.128060][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   28.128063][   T12]  _printk (kernel/printk/printk.c:2504)
[   28.128065][   T12]  ? snapshot_read.cold (user.c:?)
[   28.128068][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.128070][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.128072][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.128074][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   28.128075][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128077][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.128079][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   28.128081][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.128082][   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)
[   28.128085][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.128088][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.128090][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   28.128103][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   28.128111][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   28.128118][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   28.128120][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   28.128122][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   28.128125][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   28.128127][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.128129][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.128130][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.128133][   T12]  process_one_work (kernel/workqueue.c:3387)
[   28.128135][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   28.128137][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.128139][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.128141][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.128144][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   28.128146][   T12]  kthread (kernel/kthread.c:436)
[   28.128147][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.128149][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.128150][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.128152][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   28.128154][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.128156][   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:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__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