======================================
| [   11.137683][  T224] softirqs last disabled at (21817): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.137685][  T224] Preemption disabled at:
| [   11.137686][  T224] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.137695][  T224] Tainted: [W]=WARN
[   11.137696][  T224] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.137698][  T224] Call Trace:
[   11.137700][  T224]  <TASK>
[   11.137701][  T224]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.137707][  T224]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.137709][  T224]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.137714][  T224]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.137718][  T224]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.137722][  T224]  __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))
[   11.137724][  T224]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.137730][  T224]  ? 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)
[   11.137733][  T224]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.137736][  T224]  put_chars (drivers/char/virtio_console.c:1176)
[   11.137739][  T224]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.137740][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.137745][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.137748][  T224]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.137752][  T224]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.137755][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.137759][  T224]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.137762][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.137767][  T224]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.137771][  T224]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.137772][  T224]  ? 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))
[   11.137775][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.137778][  T224]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.137781][  T224]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.137785][  T224]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.137787][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.137792][  T224]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.137795][  T224]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.137797][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.137799][  T224]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.137802][  T224]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.137804][  T224]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.137807][  T224]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.137811][  T224]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.137816][  T224]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.137821][  T224]  _printk (kernel/printk/printk.c:2504)
[   11.137824][  T224]  ? snapshot_read.cold (user.c:?)
[   11.137830][  T224]  ? 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)
[   11.137833][  T224] 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
[   11.137836][  T224]  do_one_initcall (init/main.c:1357)
[   11.137839][  T224]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.137843][  T224]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.137847][  T224]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.137851][  T224]  do_init_module (kernel/module/main.c:3117)
[   11.137855][  T224]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.137859][  T224]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.137862][  T224]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.137866][  T224]  load_module (kernel/module/main.c:3593)
[   11.137873][  T224]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.137877][  T224]  ? __ia32_sys_fsconfig (??:?)
[   11.137880][  T224]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.137884][  T224]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.137887][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.137890][  T224]  init_module_from_file (kernel/module/main.c:3790)
[   11.137893][  T224]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.137901][  T224]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.137905][  T224]  ? 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)
[   11.137908][  T224]  idempotent_init_module (kernel/module/main.c:3802)
[   11.137911][  T224]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.137917][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.137919][  T224]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.137925][  T224]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.137927][  T224]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.137931][  T224]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.137932][  T224]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.137935][  T224]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.137937][  T224] RIP: 0033:0x7f0cc1f3237d
[   11.137941][  T224] 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
[   11.137942][  T224] RSP: 002b:00007ffc08a95528 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.137945][  T224] RAX: ffffffffffffffda RBX: 00005568bc1b9810 RCX: 00007f0cc1f3237d
[   11.137946][  T224] RDX: 0000000000000000 RSI: 00005568af3e4ffd RDI: 0000000000000000
[   11.137947][  T224] RBP: 00007ffc08a955c0 R08: 0000000000000000 R09: 0000000000000000
[   11.137948][  T224] R10: 0000000000000000 R11: 0000000000000246 R12: 00005568af3e4ffd
[   11.137948][  T224] R13: 00005568bc1b9960 R14: 0000000000040000 R15: 0000000000000000
| [   19.951704][  T323] softirqs last disabled at (23270): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   19.951706][  T323] Preemption disabled at:
| [   19.951707][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.951716][  T323] Tainted: [W]=WARN
[   19.951717][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.951719][  T323] Call Trace:
[   19.951721][  T323]  <TASK>
[   19.951722][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.951728][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.951730][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.951735][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.951739][  T323]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.951744][  T323]  __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))
[   19.951747][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.951752][  T323]  ? 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)
[   19.951755][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.951759][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   19.951761][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.951763][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.951768][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.951773][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.951779][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.951781][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951784][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.951788][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.951791][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.951793][  T323]  ? 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))
[   19.951797][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951799][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.951803][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.951807][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.951809][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.951814][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.951817][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.951819][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951821][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.951825][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.951826][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.951830][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.951833][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.951835][  T323]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.951837][  T323]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.951840][  T323]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.951842][  T323]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.951845][  T323]  ? ___sys_sendmsg (net/socket.c:2767)
[   19.951846][  T323]  ? __sys_sendmsg (net/socket.c:2799)
[   19.951848][  T323]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.951853][  T323]  _printk (kernel/printk/printk.c:2504)
[   19.951857][  T323]  ? snapshot_read.cold (user.c:?)
[   19.951861][  T323]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.951865][  T323]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.951868][  T323]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.951871][  T323]  ? netdev_notice (net/core/dev.c:13194)
[   19.951874][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951877][  T323]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   19.951880][  T323]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   19.951881][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.951883][  T323]  ? 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)
[   19.951887][  T323]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   19.951891][  T323]  dev_set_allmulti (net/core/dev_api.c:315)
[   19.951895][  T323] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   19.951908][  T323]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   19.951915][  T323] br_del_if (net/bridge/br_if.c:732) bridge
[   19.951922][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.951925][  T323]  do_set_master (net/core/rtnetlink.c:3055)
[   19.951929][  T323]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   19.951933][  T323]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   19.951936][  T323]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   19.951937][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.951940][  T323]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.951943][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.951946][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.951948][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.951951][  T323]  ? kasan_save_stack (mm/kasan/common.c:58)
[   19.951954][  T323]  ? kasan_save_stack (mm/kasan/common.c:57)
[   19.951955][  T323]  ? kasan_save_track (mm/kasan/common.c:78)
[   19.951958][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.951960][  T323]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   19.951962][  T323]  ? ___sys_sendmsg (net/socket.c:2757)
[   19.951965][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.951967][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.951969][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951972][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.951973][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951975][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.951977][  T323]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   19.951980][  T323]  ? __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)
[   19.951983][  T323]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   19.951985][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.951988][  T323]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.951990][  T323]  ? nla_get_range_signed (lib/nlattr.c:270)
[   19.951995][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   19.952000][  T323]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   19.952005][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.952007][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.952012][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.952014][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.952016][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.952018][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.952021][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.952023][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.952026][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.952028][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.952032][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.952034][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.952040][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.952041][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.952044][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.952050][  T323]  ? 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))
[   19.952052][  T323]  ? 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))
[   19.952056][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.952060][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.952062][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.952067][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.952070][  T323]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.952074][  T323]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   19.952079][  T323]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.952082][  T323]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.952084][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   19.952086][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   19.952093][  T323]  ___sys_sendmsg (net/socket.c:2767)
[   19.952096][  T323]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.952111][  T323]  __sys_sendmsg (net/socket.c:2799)
[   19.952114][  T323]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.952120][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.952124][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.952126][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.952129][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.952131][  T323] RIP: 0033:0x7f6ce131154e
[   19.952134][  T323] 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
[   19.952136][  T323] RSP: 002b:00007ffdaf39f420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.952139][  T323] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6ce131154e
[   19.952140][  T323] RDX: 0000000000000000 RSI: 00007ffdaf39f4d0 RDI: 0000000000000005
[   19.952141][  T323] RBP: 00007ffdaf39f430 R08: 0000000000000000 R09: 0000000000000000
[   19.952142][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e75f
[   19.952143][  T323] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdaf39fb90
| [   22.104580][  T326] softirqs last disabled at (12126): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.104582][  T326] Preemption disabled at:
| [   22.104583][  T326] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.104593][  T326] Tainted: [W]=WARN
[   22.104594][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.104595][  T326] Call Trace:
[   22.104597][  T326]  <TASK>
[   22.104599][  T326]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.104605][  T326]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.104607][  T326]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.104612][  T326]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.104616][  T326]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.104621][  T326]  __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))
[   22.104623][  T326]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.104629][  T326]  ? 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)
[   22.104631][  T326]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.104634][  T326]  put_chars (drivers/char/virtio_console.c:1176)
[   22.104636][  T326]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   22.104639][  T326]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.104642][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.104646][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.104648][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.104652][  T326]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.104655][  T326]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   22.104657][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104658][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104662][  T326]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.104664][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.104673][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.104676][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.104680][  T326]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.104683][  T326]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.104685][  T326]  ? 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))
[   22.104688][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.104691][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.104694][  T326]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.104699][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.104700][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104706][  T326]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.104708][  T326]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.104710][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.104712][  T326]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.104716][  T326]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.104717][  T326]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.104721][  T326]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.104725][  T326]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.104727][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.104730][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.104733][  T326]  _printk (kernel/printk/printk.c:2504)
[   22.104737][  T326]  ? snapshot_read.cold (user.c:?)
[   22.104741][  T326]  ? br_multicast_flood (??:?) bridge
[   22.104754][  T326]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.104755][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.104756][  T326]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.104761][  T326] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   22.104771][  T326] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   22.104779][  T326] new_nbp (net/bridge/br_if.c:449) bridge
[   22.104789][  T326] br_add_if (net/bridge/br_if.c:592) bridge
[   22.104796][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.104800][  T326]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.104803][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   22.104807][  T326]  do_set_master (net/core/rtnetlink.c:3071)
[   22.104811][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.104814][  T326]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.104817][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.104819][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.104821][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.104824][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.104827][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.104829][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.104831][  T326]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.104834][  T326]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.104836][  T326]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.104839][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104840][  T326]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.104843][  T326]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.104848][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.104850][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.104852][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.104855][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.104856][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.104858][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.104860][  T326]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.104864][  T326]  ? __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)
[   22.104867][  T326]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.104869][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.104872][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.104874][  T326]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.104879][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.104884][  T326]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.104889][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.104891][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104895][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.104897][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.104899][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.104901][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.104905][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.104907][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.104909][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.104911][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104915][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.104917][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.104920][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.104922][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.104925][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.104931][  T326]  ? 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))
[   22.104932][  T326]  ? 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))
[   22.104936][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.104940][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.104943][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.104947][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.104950][  T326]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.104954][  T326]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.104960][  T326]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.104962][  T326]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.104964][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.104966][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   22.104973][  T326]  ___sys_sendmsg (net/socket.c:2767)
[   22.104976][  T326]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.104991][  T326]  __sys_sendmsg (net/socket.c:2799)
[   22.104994][  T326]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.105000][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.105003][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.105006][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.105009][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.105011][  T326] RIP: 0033:0x7f2d77e5254e
[   22.105014][  T326] 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
[   22.105016][  T326] RSP: 002b:00007fffb503b470 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.105019][  T326] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2d77e5254e
[   22.105021][  T326] RDX: 0000000000000000 RSI: 00007fffb503b520 RDI: 0000000000000005
[   22.105021][  T326] RBP: 00007fffb503b480 R08: 0000000000000000 R09: 0000000000000000
[   22.105022][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e761
[   22.105023][  T326] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb503bbe0
| [   24.740025][  T374] softirqs last disabled at (16272): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   24.740033][  T374] Preemption disabled at:
| [   24.740034][  T374] 0x0
| [   24.740046][  T374] Tainted: [W]=WARN
[   24.740047][  T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.740049][  T374] Call Trace:
[   24.740050][  T374]  <TASK>
[   24.740052][  T374]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.740059][  T374]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.740063][  T374]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.740068][  T374]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.740073][  T374]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.740075][  T374]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.740081][  T374]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.740083][  T374]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.740087][  T374]  put_chars (drivers/char/virtio_console.c:1176)
[   24.740089][  T374]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.740092][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.740096][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.740099][  T374]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.740103][  T374]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.740106][  T374]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.740107][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740109][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740113][  T374]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.740115][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.740119][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.740123][  T374]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.740127][  T374]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.740129][  T374]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.740132][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.740135][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.740139][  T374]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.740143][  T374]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.740145][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740150][  T374]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.740153][  T374]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.740155][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.740157][  T374]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.740161][  T374]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.740163][  T374]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.740166][  T374]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.740170][  T374]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.740172][  T374]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.740175][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.740177][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.740181][  T374]  _printk (kernel/printk/printk.c:2504)
[   24.740185][  T374]  ? snapshot_read.cold (user.c:?)
[   24.740193][  T374] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.740204][  T374] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.740214][  T374] br_device_event (net/bridge/br.c:111) bridge
[   24.740221][  T374]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.740225][  T374]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.740231][  T374]  notifier_call_chain (kernel/notifier.c:85)
[   24.740237][  T374]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.740242][  T374]  ? netif_change_name (net/core/dev.c:1517)
[   24.740246][  T374]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.740249][  T374]  ? __kernel_text_address (kernel/extable.c:79)
[   24.740251][  T374]  ? write_profile (profile.c:?)
[   24.740254][  T374]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.740259][  T374]  netif_change_flags (net/core/dev.c:9882)
[   24.740263][  T374]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.740266][  T374]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.740268][  T374]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.740270][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.740271][  T374]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.740275][  T374]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.740277][  T374]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.740279][  T374]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.740282][  T374]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.740285][  T374]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.740286][  T374]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.740289][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740291][  T374]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.740294][  T374]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.740299][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.740301][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.740304][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.740306][  T374]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.740308][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.740309][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.740312][  T374]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.740315][  T374]  ? __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)
[   24.740317][  T374]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.740319][  T374]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.740323][  T374]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.740325][  T374]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.740330][  T374]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.740335][  T374]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.740340][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.740342][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740347][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.740349][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.740351][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.740353][  T374]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.740356][  T374]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.740359][  T374]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.740362][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.740363][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740368][  T374]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.740370][  T374]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.740373][  T374]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.740375][  T374]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.740378][  T374]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.740384][  T374]  ? 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))
[   24.740386][  T374]  ? 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))
[   24.740390][  T374]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.740394][  T374]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.740397][  T374]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.740401][  T374]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.740405][  T374]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.740409][  T374]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.740415][  T374]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.740417][  T374]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.740419][  T374]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.740421][  T374]  ? move_addr_to_kernel (net/socket.c:258)
[   24.740428][  T374]  ___sys_sendmsg (net/socket.c:2767)
[   24.740431][  T374]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.740448][  T374]  __sys_sendmsg (net/socket.c:2799)
[   24.740451][  T374]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.740457][  T374]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.740461][  T374]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.740463][  T374]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.740466][  T374]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.740469][  T374] RIP: 0033:0x7ff07e80d54e
[   24.740471][  T374] 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
[   24.740473][  T374] RSP: 002b:00007ffe855245d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.740476][  T374] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff07e80d54e
[   24.740477][  T374] RDX: 0000000000000000 RSI: 00007ffe85524680 RDI: 0000000000000005
[   24.740478][  T374] RBP: 00007ffe855245e0 R08: 0000000000000000 R09: 0000000000000000
[   24.740479][  T374] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e764


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars