======================================
| [   11.010505][  T236] softirqs last disabled at (32193): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.010508][  T236] Preemption disabled at:
| [   11.010508][  T236] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.010518][  T236] Tainted: [W]=WARN
[   11.010518][  T236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.010521][  T236] Call Trace:
[   11.010522][  T236]  <TASK>
[   11.010523][  T236]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.010529][  T236]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.010531][  T236]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.010536][  T236]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.010540][  T236]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.010545][  T236]  __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))
[   11.010547][  T236]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.010553][  T236]  ? 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)
[   11.010555][  T236]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.010558][  T236]  put_chars (drivers/char/virtio_console.c:1176)
[   11.010561][  T236]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.010562][  T236]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.010567][  T236]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.010570][  T236]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.010574][  T236]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.010577][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.010581][  T236]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.010584][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.010589][  T236]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.010592][  T236]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.010594][  T236]  ? 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))
[   11.010597][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.010599][  T236]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.010603][  T236]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.010607][  T236]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.010609][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.010614][  T236]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.010616][  T236]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.010618][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.010620][  T236]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.010624][  T236]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.010625][  T236]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.010628][  T236]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.010633][  T236]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.010638][  T236]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.010642][  T236]  _printk (kernel/printk/printk.c:2504)
[   11.010645][  T236]  ? snapshot_read.cold (user.c:?)
[   11.010651][  T236]  ? 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)
[   11.010654][  T236] 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
[   11.010657][  T236]  do_one_initcall (init/main.c:1357)
[   11.010660][  T236]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.010664][  T236]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.010667][  T236]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.010672][  T236]  do_init_module (kernel/module/main.c:3117)
[   11.010675][  T236]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.010680][  T236]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.010683][  T236]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.010686][  T236]  load_module (kernel/module/main.c:3593)
[   11.010693][  T236]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.010697][  T236]  ? __ia32_sys_fsconfig (??:?)
[   11.010699][  T236]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.010703][  T236]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.010705][  T236]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.010708][  T236]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.010712][  T236]  init_module_from_file (kernel/module/main.c:3790)
[   11.010715][  T236]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.010722][  T236]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.010726][  T236]  ? 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)
[   11.010729][  T236]  idempotent_init_module (kernel/module/main.c:3802)
[   11.010732][  T236]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.010738][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.010740][  T236]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.010746][  T236]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.010748][  T236]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.010752][  T236]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.010753][  T236]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.010756][  T236]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.010759][  T236] RIP: 0033:0x7f37c8b8b37d
[   11.010762][  T236] 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
[   11.010764][  T236] RSP: 002b:00007ffd21a3a2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.010766][  T236] RAX: ffffffffffffffda RBX: 000056522e072810 RCX: 00007f37c8b8b37d
[   11.010768][  T236] RDX: 0000000000000000 RSI: 00005651fc444ffd RDI: 0000000000000000
[   11.010768][  T236] RBP: 00007ffd21a3a380 R08: 0000000000000000 R09: 0000000000000000
[   11.010769][  T236] R10: 0000000000000000 R11: 0000000000000246 R12: 00005651fc444ffd
[   11.010770][  T236] R13: 000056522e072960 R14: 0000000000040000 R15: 0000000000000000
| [   12.253018][  T281] softirqs last disabled at (14720): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.253021][  T281] Preemption disabled at:
| [   12.253021][  T281] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.253036][  T281] Tainted: [W]=WARN
[   12.253037][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.253039][  T281] Call Trace:
[   12.253040][  T281]  <TASK>
[   12.253042][  T281]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.253048][  T281]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.253050][  T281]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.253055][  T281]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.253059][  T281]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.253067][  T281]  __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))
[   12.253069][  T281]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.253076][  T281]  ? 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)
[   12.253078][  T281]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.253081][  T281]  put_chars (drivers/char/virtio_console.c:1176)
[   12.253084][  T281]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.253089][  T281]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.253093][  T281]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.253096][  T281]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.253098][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253099][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253103][  T281]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.253105][  T281]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.253108][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253112][  T281]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.253116][  T281]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.253120][  T281]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.253121][  T281]  ? 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))
[   12.253125][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253127][  T281]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.253131][  T281]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.253135][  T281]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.253137][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253143][  T281]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.253146][  T281]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.253148][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253150][  T281]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.253154][  T281]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.253155][  T281]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.253159][  T281]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.253163][  T281]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.253165][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.253167][  T281]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.253171][  T281]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.253175][  T281]  _printk (kernel/printk/printk.c:2504)
[   12.253178][  T281]  ? snapshot_read.cold (user.c:?)
[   12.253182][  T281]  ? br_multicast_flood (??:?) bridge
[   12.253195][  T281]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.253197][  T281]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.253198][  T281]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.253202][  T281] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.253212][  T281] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.253221][  T281] new_nbp (net/bridge/br_if.c:449) bridge
[   12.253230][  T281] br_add_if (net/bridge/br_if.c:592) bridge
[   12.253237][  T281]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.253241][  T281]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.253244][  T281]  ? __kernel_text_address (kernel/extable.c:79)
[   12.253248][  T281]  do_set_master (net/core/rtnetlink.c:3071)
[   12.253253][  T281]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.253256][  T281]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.253259][  T281]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.253260][  T281]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.253263][  T281]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.253266][  T281]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.253269][  T281]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.253271][  T281]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.253273][  T281]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.253276][  T281]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.253278][  T281]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.253280][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253282][  T281]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.253285][  T281]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.253290][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.253292][  T281]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.253295][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253297][  T281]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.253299][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253300][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253303][  T281]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.253306][  T281]  ? __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)
[   12.253308][  T281]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.253310][  T281]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.253314][  T281]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.253315][  T281]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.253320][  T281]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.253326][  T281]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.253331][  T281]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.253333][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253338][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.253339][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.253341][  T281]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.253343][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.253347][  T281]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.253349][  T281]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.253352][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.253353][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253358][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.253359][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.253363][  T281]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.253365][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.253367][  T281]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.253373][  T281]  ? 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))
[   12.253375][  T281]  ? 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))
[   12.253379][  T281]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.253383][  T281]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.253385][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.253390][  T281]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.253393][  T281]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.253397][  T281]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.253402][  T281]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.253404][  T281]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.253407][  T281]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.253408][  T281]  ? move_addr_to_kernel (net/socket.c:258)
[   12.253416][  T281]  ___sys_sendmsg (net/socket.c:2767)
[   12.253418][  T281]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.253434][  T281]  __sys_sendmsg (net/socket.c:2799)
[   12.253437][  T281]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.253443][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.253447][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.253449][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.253452][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.253454][  T281] RIP: 0033:0x7fba63b1354e
[   12.253458][  T281] 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
[   12.253460][  T281] RSP: 002b:00007ffd0804a030 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.253462][  T281] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fba63b1354e
[   12.253464][  T281] RDX: 0000000000000000 RSI: 00007ffd0804a0e0 RDI: 0000000000000005
[   12.253465][  T281] RBP: 00007ffd0804a040 R08: 0000000000000000 R09: 0000000000000000
[   12.253465][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac61
[   12.253466][  T281] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd0804a7a0
| [   13.887759][  T343] softirqs last disabled at (17576): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.887761][  T343] Preemption disabled at:
| [   13.887762][  T343] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.887771][  T343] Tainted: [W]=WARN
[   13.887772][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.887774][  T343] Call Trace:
[   13.887776][  T343]  <TASK>
[   13.887777][  T343]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.887783][  T343]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.887785][  T343]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.887789][  T343]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.887793][  T343]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.887799][  T343]  __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))
[   13.887801][  T343]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.887807][  T343]  ? 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)
[   13.887810][  T343]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.887813][  T343]  put_chars (drivers/char/virtio_console.c:1176)
[   13.887815][  T343]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.887817][  T343]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.887820][  T343]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.887825][  T343]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.887827][  T343]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.887831][  T343]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.887834][  T343]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.887835][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.887837][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.887841][  T343]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.887843][  T343]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.887846][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.887848][  T343]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.887853][  T343]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.887857][  T343]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.887858][  T343]  ? 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))
[   13.887862][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.887864][  T343]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.887868][  T343]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.887872][  T343]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.887874][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.887879][  T343]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.887882][  T343]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.887884][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.887886][  T343]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.887890][  T343]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.887891][  T343]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.887895][  T343]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.887899][  T343]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.887901][  T343]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.887904][  T343]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.887907][  T343]  _printk (kernel/printk/printk.c:2504)
[   13.887911][  T343]  ? snapshot_read.cold (user.c:?)
[   13.887915][  T343]  ? br_multicast_flood (??:?) bridge
[   13.887928][  T343]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.887929][  T343]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.887930][  T343]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.887935][  T343] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.887945][  T343] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.887953][  T343] new_nbp (net/bridge/br_if.c:449) bridge
[   13.887963][  T343] br_add_if (net/bridge/br_if.c:592) bridge
[   13.887970][  T343]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.887974][  T343]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.887977][  T343]  ? __kernel_text_address (kernel/extable.c:79)
[   13.887980][  T343]  do_set_master (net/core/rtnetlink.c:3071)
[   13.887985][  T343]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.887988][  T343]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.887991][  T343]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.887993][  T343]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.887994][  T343]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.887998][  T343]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.888001][  T343]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.888002][  T343]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.888005][  T343]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.888008][  T343]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.888009][  T343]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.888012][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.888014][  T343]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.888017][  T343]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.888022][  T343]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.888024][  T343]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.888026][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.888029][  T343]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.888030][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.888032][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.888040][  T343]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.888044][  T343]  ? __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)
[   13.888047][  T343]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.888049][  T343]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.888052][  T343]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.888054][  T343]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.888059][  T343]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.888066][  T343]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.888071][  T343]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.888073][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.888078][  T343]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.888079][  T343]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.888081][  T343]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.888083][  T343]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.888087][  T343]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.888089][  T343]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.888092][  T343]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.888093][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.888098][  T343]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.888099][  T343]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.888103][  T343]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.888105][  T343]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.888107][  T343]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.888114][  T343]  ? 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))
[   13.888115][  T343]  ? 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))
[   13.888119][  T343]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.888123][  T343]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.888125][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.888129][  T343]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.888133][  T343]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.888137][  T343]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.888142][  T343]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.888145][  T343]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.888147][  T343]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.888148][  T343]  ? move_addr_to_kernel (net/socket.c:258)
[   13.888156][  T343]  ___sys_sendmsg (net/socket.c:2767)
[   13.888158][  T343]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.888174][  T343]  __sys_sendmsg (net/socket.c:2799)
[   13.888177][  T343]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.888184][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.888187][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.888190][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.888193][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.888195][  T343] RIP: 0033:0x7ff1e5ffa54e
[   13.888198][  T343] 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
[   13.888200][  T343] RSP: 002b:00007ffea3dc7e10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.888203][  T343] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff1e5ffa54e
[   13.888204][  T343] RDX: 0000000000000000 RSI: 00007ffea3dc7ec0 RDI: 0000000000000005
[   13.888205][  T343] RBP: 00007ffea3dc7e20 R08: 0000000000000000 R09: 0000000000000000
[   13.888206][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac63
[   13.888207][  T343] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea3dc8580
| [   15.363135][  T398] softirqs last disabled at (12035): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   15.363137][  T398] Preemption disabled at:
| [   15.363138][  T398] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.363147][  T398] Tainted: [W]=WARN
[   15.363148][  T398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.363150][  T398] Call Trace:
[   15.363152][  T398]  <TASK>
[   15.363153][  T398]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.363159][  T398]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.363161][  T398]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.363165][  T398]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.363169][  T398]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.363175][  T398]  __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))
[   15.363177][  T398]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.363183][  T398]  ? 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)
[   15.363186][  T398]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.363189][  T398]  put_chars (drivers/char/virtio_console.c:1176)
[   15.363191][  T398]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.363193][  T398]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.363196][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.363200][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.363203][  T398]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.363206][  T398]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.363209][  T398]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.363211][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363212][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363216][  T398]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.363218][  T398]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.363221][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363224][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.363227][  T398]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.363231][  T398]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.363233][  T398]  ? 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))
[   15.363236][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363239][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.363243][  T398]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.363247][  T398]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.363248][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363254][  T398]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.363256][  T398]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.363258][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363261][  T398]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.363264][  T398]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.363266][  T398]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.363269][  T398]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.363273][  T398]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.363276][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.363278][  T398]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.363282][  T398]  _printk (kernel/printk/printk.c:2504)
[   15.363286][  T398]  ? snapshot_read.cold (user.c:?)
[   15.363289][  T398]  ? br_multicast_flood (??:?) bridge
[   15.363302][  T398]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.363304][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.363305][  T398]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.363309][  T398] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.363319][  T398] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.363328][  T398] new_nbp (net/bridge/br_if.c:449) bridge
[   15.363337][  T398] br_add_if (net/bridge/br_if.c:592) bridge
[   15.363344][  T398]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.363348][  T398]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.363351][  T398]  ? __kernel_text_address (kernel/extable.c:79)
[   15.363355][  T398]  do_set_master (net/core/rtnetlink.c:3071)
[   15.363359][  T398]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.363363][  T398]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.363366][  T398]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.363367][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.363369][  T398]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.363372][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.363375][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.363377][  T398]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.363379][  T398]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.363382][  T398]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.363384][  T398]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.363386][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363388][  T398]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   15.363391][  T398]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.363396][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.363398][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.363401][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363403][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.363405][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363406][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363409][  T398]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.363413][  T398]  ? __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)
[   15.363416][  T398]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.363418][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.363421][  T398]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.363423][  T398]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.363428][  T398]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.363433][  T398]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.363438][  T398]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.363440][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363445][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.363446][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.363448][  T398]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.363450][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.363454][  T398]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.363456][  T398]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.363459][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.363460][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363465][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.363467][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.363470][  T398]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.363472][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.363475][  T398]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.363481][  T398]  ? 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))
[   15.363482][  T398]  ? 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))
[   15.363486][  T398]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.363490][  T398]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.363493][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.363497][  T398]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.363500][  T398]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.363504][  T398]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.363509][  T398]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.363512][  T398]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.363514][  T398]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.363516][  T398]  ? move_addr_to_kernel (net/socket.c:258)
[   15.363523][  T398]  ___sys_sendmsg (net/socket.c:2767)
[   15.363526][  T398]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.363542][  T398]  __sys_sendmsg (net/socket.c:2799)
[   15.363544][  T398]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.363551][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.363554][  T398]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.363557][  T398]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.363560][  T398]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.363562][  T398] RIP: 0033:0x7f919a3fb54e
[   15.363565][  T398] 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
[   15.363567][  T398] RSP: 002b:00007fff09d4dff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.363570][  T398] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f919a3fb54e
[   15.363571][  T398] RDX: 0000000000000000 RSI: 00007fff09d4e0a0 RDI: 0000000000000005
[   15.363572][  T398] RBP: 00007fff09d4e000 R08: 0000000000000000 R09: 0000000000000000
[   15.363573][  T398] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac64
[   15.363574][  T398] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff09d4e760
| [   27.511165][    C2] softirqs last disabled at (921821): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.511167][    C2] Preemption disabled at:
| [   27.511168][    C2] 0x0
| [   27.511178][    C2] Tainted: [W]=WARN
[   27.511179][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.511181][    C2] Call Trace:
[   27.511182][    C2]  <IRQ>
[   27.511184][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.511189][    C2]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.511193][    C2]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.511197][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.511200][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511204][    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))
[   27.511207][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.511210][    C2]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.511213][    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)
[   27.511215][    C2]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.511217][    C2]  put_chars (drivers/char/virtio_console.c:1176)
[   27.511219][    C2]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.511221][    C2]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.511224][    C2]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.511227][    C2]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.511229][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511231][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.511233][    C2]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.511236][    C2]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.511238][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511239][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511241][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.511243][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.511245][    C2]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.511247][    C2]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.511250][    C2]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.511251][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.511253][    C2]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.511255][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511256][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.511257][    C2]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.511259][    C2]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.511261][    C2]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.511263][    C2]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.511266][    C2]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.511268][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.511280][    C2]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.511282][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.511288][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.511294][    C2]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   27.511298][    C2]  _printk (kernel/printk/printk.c:2504)
[   27.511302][    C2]  ? snapshot_read.cold (user.c:?)
[   27.511303][    C2]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.511307][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.511309][    C2]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.511311][    C2]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.511314][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.511317][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.511319][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.511320][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.511323][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.511324][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.511331][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511333][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.511334][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.511341][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.511342][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.511348][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.511355][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.511361][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.511364][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.511366][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.511369][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.511371][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.511373][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511375][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.511377][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.511384][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.511386][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.511388][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.511391][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.511393][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.511395][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.511397][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511399][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.511401][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.511402][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.511404][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.511406][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.511407][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.511410][    C2]  </IRQ>
[   27.511411][    C2]  <TASK>
[   27.511411][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.511414][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.511417][    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
[   27.511419][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.511422][    C2] RAX: 00000000000e10db RBX: ff11000001bec6c0 RCX: ffffffff9f8f0307
[   27.511423][    C2] RDX: ff11000001bec6c0 RSI: ffffffffa2638af6 RDI: ffffffffa208d8e0
[   27.511424][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.511425][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.511426][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.511427][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.511431][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.511433][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.511434][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.511436][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.511438][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.511440][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.511441][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.511443][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.511445][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.511446][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.511448][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.511450][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.571031][    C2]
| [   27.571109][    C2]
| [   27.571109][    C2] stack backtrace:
| [   27.571336][    C2] Tainted: [W]=WARN
[   27.571337][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.571338][    C2] Call Trace:
[   27.571339][    C2]  <IRQ>
[   27.571341][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.571345][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.571348][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.571351][    C2]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.571353][    C2]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.571354][    C2]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.571357][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.571358][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.571366][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.571369][    C2]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.571371][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.571377][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.571379][    C2]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.571386][    C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.571393][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.571400][    C2]  call_timer_fn (kernel/time/timer.c:1748)
[   27.571403][    C2]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.571405][    C2]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.571408][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.571411][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.571412][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.571415][    C2]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.571416][    C2]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.571424][    C2]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.571426][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.571428][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.571431][    C2]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.571433][    C2]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.571435][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.571437][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.571439][    C2]  handle_softirqs (kernel/softirq.c:645)
[   27.571441][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.571442][    C2]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.571444][    C2]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.571446][    C2]  irq_exit_rcu (kernel/softirq.c:784)
[   27.571447][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.571449][    C2]  </IRQ>
[   27.571450][    C2]  <TASK>
[   27.571451][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.571452][    C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.571454][    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
[   27.571456][    C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282
[   27.571458][    C2] RAX: 00000000000e10db RBX: ff11000001bec6c0 RCX: ffffffff9f8f0307
[   27.571459][    C2] RDX: ff11000001bec6c0 RSI: ffffffffa2638af6 RDI: ffffffffa208d8e0
[   27.571460][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.571461][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3
[   27.571462][    C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   27.571464][    C2]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.571466][    C2]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.571468][    C2]  default_idle_call (kernel/sched/idle.c:122)
[   27.571469][    C2]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.571471][    C2]  ? arch_cpu_idle_exit+0x40/0x40
[   27.571473][    C2]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.571475][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.571476][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.571478][    C2]  do_idle (kernel/sched/idle.c:355)
[   27.571480][    C2]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.571481][    C2]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   27.571482][    C2]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   27.571484][    C2]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.705695][   T12] softirqs last disabled at (36244): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   28.705697][   T12] Preemption disabled at:
| [   28.705698][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.705710][   T12] Tainted: [W]=WARN
[   28.705711][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.705713][   T12] Workqueue: netns cleanup_net
[   28.705719][   T12] Call Trace:
[   28.705721][   T12]  <TASK>
[   28.705722][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.705728][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.705730][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.705734][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.705737][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705742][   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))
[   28.705746][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.705748][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.705752][   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)
[   28.705754][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.705756][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   28.705758][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   28.705760][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.705762][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.705764][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.705768][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.705770][   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)
[   28.705772][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.705773][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705775][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705777][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.705780][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.705782][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.705784][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705786][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705788][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705790][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.705792][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.705794][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.705797][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.705800][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.705801][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.705803][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.705805][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705806][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.705808][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.705809][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   28.705812][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.705814][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.705816][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.705818][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.705820][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   28.705823][   T12]  ? kthread (kernel/kthread.c:436)
[   28.705825][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   28.705828][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   28.705831][   T12]  _printk (kernel/printk/printk.c:2504)
[   28.705834][   T12]  ? snapshot_read.cold (user.c:?)
[   28.705836][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.705839][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.705841][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.705843][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   28.705845][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705847][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.705849][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   28.705851][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.705853][   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)
[   28.705855][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.705858][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.705861][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   28.705875][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   28.705883][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   28.705890][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   28.705893][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   28.705895][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   28.705898][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   28.705900][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.705902][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.705904][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.705906][   T12]  process_one_work (kernel/workqueue.c:3387)
[   28.705909][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   28.705911][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.705913][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.705915][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.705918][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   28.705920][   T12]  kthread (kernel/kthread.c:436)
[   28.705921][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.705923][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.705925][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.705926][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   28.705928][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.705931][   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