======================================
| [   10.875843][  T222] softirqs last disabled at (33419): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.875846][  T222] Preemption disabled at:
| [   10.875847][  T222] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.875855][  T222] Tainted: [W]=WARN
[   10.875856][  T222] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.875857][  T222] Call Trace:
[   10.875859][  T222]  <TASK>
[   10.875860][  T222]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.875866][  T222]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.875868][  T222]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.875873][  T222]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.875877][  T222]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.875882][  T222]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.875885][  T222]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.875890][  T222]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.875893][  T222]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.875896][  T222]  put_chars (drivers/char/virtio_console.c:1176)
[   10.875899][  T222]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.875900][  T222]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.875905][  T222]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.875907][  T222]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.875912][  T222]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.875914][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.875919][  T222]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.875922][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.875926][  T222]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.875930][  T222]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.875932][  T222]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.875935][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.875938][  T222]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.875941][  T222]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.875945][  T222]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.875947][  T222]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.875952][  T222]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.875955][  T222]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.875956][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.875959][  T222]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.875962][  T222]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.875964][  T222]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.875967][  T222]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.875971][  T222]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.875976][  T222]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.875980][  T222]  _printk (kernel/printk/printk.c:2504)
[   10.875984][  T222]  ? snapshot_read.cold (user.c:?)
[   10.875990][  T222]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   10.875993][  T222] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   10.875997][  T222]  do_one_initcall (init/main.c:1357)
[   10.875999][  T222]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.876004][  T222]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.876007][  T222]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.876012][  T222]  do_init_module (kernel/module/main.c:3117)
[   10.876015][  T222]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.876019][  T222]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.876022][  T222]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.876026][  T222]  load_module (kernel/module/main.c:3593)
[   10.876033][  T222]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.876037][  T222]  ? __ia32_sys_fsconfig (??:?)
[   10.876040][  T222]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.876044][  T222]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.876047][  T222]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.876051][  T222]  init_module_from_file (kernel/module/main.c:3790)
[   10.876054][  T222]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.876062][  T222]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.876065][  T222]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.876068][  T222]  idempotent_init_module (kernel/module/main.c:3802)
[   10.876072][  T222]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.876078][  T222]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.876080][  T222]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.876086][  T222]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.876088][  T222]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.876092][  T222]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.876093][  T222]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.876096][  T222]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.876098][  T222] RIP: 0033:0x7f2e7e0dd37d
[   10.876101][  T222] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.876103][  T222] RSP: 002b:00007fff70a90918 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.876106][  T222] RAX: ffffffffffffffda RBX: 00005639ec50c810 RCX: 00007f2e7e0dd37d
[   10.876107][  T222] RDX: 0000000000000000 RSI: 00005639d4abcffd RDI: 0000000000000000
[   10.876108][  T222] RBP: 00007fff70a909b0 R08: 0000000000000000 R09: 0000000000000000
[   10.876109][  T222] R10: 0000000000000000 R11: 0000000000000246 R12: 00005639d4abcffd
[   10.876109][  T222] R13: 00005639ec50c960 R14: 0000000000040000 R15: 0000000000000000
| [   19.773091][  T323] softirqs last disabled at (14645): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.773093][  T323] Preemption disabled at:
| [   19.773094][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.773103][  T323] Tainted: [W]=WARN
[   19.773104][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.773105][  T323] Call Trace:
[   19.773107][  T323]  <TASK>
[   19.773109][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.773114][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.773116][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.773121][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.773125][  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)
[   19.773130][  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))
[   19.773133][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.773138][  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)
[   19.773141][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.773144][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   19.773147][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.773148][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.773153][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.773158][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.773165][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.773167][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773170][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.773174][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.773177][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.773179][  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))
[   19.773182][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773185][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.773188][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.773192][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.773194][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.773199][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.773202][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.773204][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773206][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.773210][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.773212][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.773215][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.773218][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.773220][  T323]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.773222][  T323]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.773225][  T323]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.773226][  T323]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.773229][  T323]  ? ___sys_sendmsg (net/socket.c:2767)
[   19.773231][  T323]  ? __sys_sendmsg (net/socket.c:2799)
[   19.773233][  T323]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.773237][  T323]  _printk (kernel/printk/printk.c:2504)
[   19.773241][  T323]  ? snapshot_read.cold (user.c:?)
[   19.773246][  T323]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.773249][  T323]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.773253][  T323]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.773255][  T323]  ? netdev_notice (net/core/dev.c:13194)
[   19.773259][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773261][  T323]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   19.773264][  T323]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   19.773265][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.773267][  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)
[   19.773271][  T323]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   19.773275][  T323]  dev_set_allmulti (net/core/dev_api.c:315)
[   19.773279][  T323] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   19.773292][  T323]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   19.773298][  T323] br_del_if (net/bridge/br_if.c:732) bridge
[   19.773306][  T323]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.773309][  T323]  do_set_master (net/core/rtnetlink.c:3055)
[   19.773313][  T323]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   19.773317][  T323]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   19.773320][  T323]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   19.773321][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.773324][  T323]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.773327][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.773330][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.773331][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.773334][  T323]  ? kasan_save_stack (mm/kasan/common.c:58)
[   19.773337][  T323]  ? kasan_save_stack (mm/kasan/common.c:57)
[   19.773339][  T323]  ? kasan_save_track (mm/kasan/common.c:78)
[   19.773341][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.773343][  T323]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   19.773345][  T323]  ? ___sys_sendmsg (net/socket.c:2757)
[   19.773348][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.773350][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.773353][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773355][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.773357][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773358][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773361][  T323]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   19.773364][  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)
[   19.773366][  T323]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   19.773368][  T323]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.773371][  T323]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.773373][  T323]  ? nla_get_range_signed (lib/nlattr.c:270)
[   19.773378][  T323]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   19.773383][  T323]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   19.773388][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.773390][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.773394][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.773396][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.773398][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.773400][  T323]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.773404][  T323]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.773406][  T323]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.773409][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.773410][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.773415][  T323]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.773417][  T323]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.773420][  T323]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.773422][  T323]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.773424][  T323]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.773431][  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))
[   19.773432][  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))
[   19.773436][  T323]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.773440][  T323]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.773442][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.773447][  T323]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.773450][  T323]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.773454][  T323]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   19.773459][  T323]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.773462][  T323]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.773464][  T323]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   19.773465][  T323]  ? move_addr_to_kernel (net/socket.c:258)
[   19.773473][  T323]  ___sys_sendmsg (net/socket.c:2767)
[   19.773476][  T323]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.773491][  T323]  __sys_sendmsg (net/socket.c:2799)
[   19.773494][  T323]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.773500][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.773504][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.773505][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.773508][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.773513][  T323] RIP: 0033:0x7f581808f54e
[   19.773516][  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
[   19.773518][  T323] RSP: 002b:00007ffd1f0d57f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.773521][  T323] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f581808f54e
[   19.773522][  T323] RDX: 0000000000000000 RSI: 00007ffd1f0d58a0 RDI: 0000000000000005
[   19.773523][  T323] RBP: 00007ffd1f0d5800 R08: 0000000000000000 R09: 0000000000000000
[   19.773524][  T323] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9159a0
[   19.773525][  T323] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd1f0d5f60
| [   21.919502][  T326] softirqs last disabled at (17648): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.919504][  T326] Preemption disabled at:
| [   21.919505][  T326] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.919516][  T326] Tainted: [W]=WARN
[   21.919516][  T326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.919518][  T326] Call Trace:
[   21.919520][  T326]  <TASK>
[   21.919522][  T326]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.919528][  T326]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.919530][  T326]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.919534][  T326]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.919538][  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)
[   21.919544][  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))
[   21.919546][  T326]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.919551][  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)
[   21.919554][  T326]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.919557][  T326]  put_chars (drivers/char/virtio_console.c:1176)
[   21.919559][  T326]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   21.919561][  T326]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.919564][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.919568][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.919571][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.919574][  T326]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.919577][  T326]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.919579][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919581][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919584][  T326]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.919586][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.919589][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919592][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.919596][  T326]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.919599][  T326]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.919601][  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))
[   21.919604][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919606][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.919610][  T326]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.919614][  T326]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.919616][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919621][  T326]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.919624][  T326]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.919626][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919628][  T326]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.919631][  T326]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.919633][  T326]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.919636][  T326]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.919640][  T326]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.919643][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.919645][  T326]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.919649][  T326]  _printk (kernel/printk/printk.c:2504)
[   21.919652][  T326]  ? snapshot_read.cold (user.c:?)
[   21.919656][  T326]  ? br_multicast_flood (??:?) bridge
[   21.919668][  T326]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.919670][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.919671][  T326]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.919675][  T326] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.919685][  T326] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   21.919693][  T326] new_nbp (net/bridge/br_if.c:449) bridge
[   21.919706][  T326] br_add_if (net/bridge/br_if.c:592) bridge
[   21.919713][  T326]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   21.919717][  T326]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.919720][  T326]  ? __kernel_text_address (kernel/extable.c:79)
[   21.919724][  T326]  do_set_master (net/core/rtnetlink.c:3071)
[   21.919728][  T326]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.919732][  T326]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.919734][  T326]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.919736][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.919738][  T326]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.919741][  T326]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.919744][  T326]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.919745][  T326]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.919748][  T326]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.919751][  T326]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.919752][  T326]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.919755][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919757][  T326]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   21.919760][  T326]  ? ___sys_sendmsg (net/socket.c:2757)
[   21.919764][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.919766][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.919768][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919771][  T326]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.919772][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919774][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919776][  T326]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.919780][  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)
[   21.919783][  T326]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.919785][  T326]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.919788][  T326]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.919790][  T326]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.919795][  T326]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.919800][  T326]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.919805][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.919807][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919811][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.919813][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.919815][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.919817][  T326]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.919820][  T326]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.919822][  T326]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.919825][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.919826][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919831][  T326]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.919832][  T326]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.919836][  T326]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.919837][  T326]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.919840][  T326]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.919846][  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))
[   21.919847][  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))
[   21.919852][  T326]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.919855][  T326]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.919858][  T326]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.919862][  T326]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.919865][  T326]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.919869][  T326]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   21.919874][  T326]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   21.919876][  T326]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.919879][  T326]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   21.919880][  T326]  ? move_addr_to_kernel (net/socket.c:258)
[   21.919887][  T326]  ___sys_sendmsg (net/socket.c:2767)
[   21.919890][  T326]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.919905][  T326]  __sys_sendmsg (net/socket.c:2799)
[   21.919908][  T326]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.919914][  T326]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.919918][  T326]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.919920][  T326]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.919923][  T326]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.919925][  T326] RIP: 0033:0x7f03a861f54e
[   21.919928][  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
[   21.919930][  T326] RSP: 002b:00007ffcbd4c2420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.919933][  T326] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f03a861f54e
[   21.919934][  T326] RDX: 0000000000000000 RSI: 00007ffcbd4c24d0 RDI: 0000000000000005
[   21.919935][  T326] RBP: 00007ffcbd4c2430 R08: 0000000000000000 R09: 0000000000000000
[   21.919936][  T326] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9159a2
[   21.919937][  T326] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcbd4c2b90
| [   24.549481][  T373] softirqs last disabled at (23110): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   24.549489][  T373] Preemption disabled at:
| [   24.549490][  T373] 0x0
| [   24.549500][  T373] Tainted: [W]=WARN
[   24.549500][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.549502][  T373] Call Trace:
[   24.549504][  T373]  <TASK>
[   24.549505][  T373]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.549514][  T373]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.549519][  T373]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.549523][  T373]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.549528][  T373]  __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))
[   24.549531][  T373]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.549536][  T373]  ? 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)
[   24.549539][  T373]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.549542][  T373]  put_chars (drivers/char/virtio_console.c:1176)
[   24.549545][  T373]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.549548][  T373]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.549552][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.549554][  T373]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.549558][  T373]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.549561][  T373]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.549563][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549565][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549569][  T373]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.549570][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.549574][  T373]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.549578][  T373]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.549582][  T373]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.549584][  T373]  ? 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))
[   24.549587][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.549589][  T373]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.549593][  T373]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.549597][  T373]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.549599][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549604][  T373]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.549607][  T373]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.549609][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.549611][  T373]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.549614][  T373]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.549616][  T373]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.549620][  T373]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.549624][  T373]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.549625][  T373]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.549628][  T373]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.549630][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.549634][  T373]  _printk (kernel/printk/printk.c:2504)
[   24.549637][  T373]  ? snapshot_read.cold (user.c:?)
[   24.549645][  T373] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.549656][  T373] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.549665][  T373] br_device_event (net/bridge/br.c:111) bridge
[   24.549673][  T373]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.549677][  T373]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.549683][  T373]  notifier_call_chain (kernel/notifier.c:85)
[   24.549689][  T373]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.549693][  T373]  ? netif_change_name (net/core/dev.c:1517)
[   24.549697][  T373]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.549700][  T373]  ? __kernel_text_address (kernel/extable.c:79)
[   24.549702][  T373]  ? write_profile (profile.c:?)
[   24.549705][  T373]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.549715][  T373]  netif_change_flags (net/core/dev.c:9882)
[   24.549719][  T373]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.549723][  T373]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.549725][  T373]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.549726][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.549728][  T373]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.549731][  T373]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.549734][  T373]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.549736][  T373]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.549738][  T373]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.549742][  T373]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.549743][  T373]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.549746][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549748][  T373]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.549751][  T373]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.549755][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.549757][  T373]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.549760][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.549762][  T373]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.549764][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.549766][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.549768][  T373]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.549772][  T373]  ? __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)
[   24.549773][  T373]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.549775][  T373]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.549778][  T373]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.549780][  T373]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.549785][  T373]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.549790][  T373]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.549796][  T373]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.549797][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549802][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.549804][  T373]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.549806][  T373]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.549807][  T373]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.549811][  T373]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.549813][  T373]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.549816][  T373]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.549818][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549822][  T373]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.549824][  T373]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.549827][  T373]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.549829][  T373]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.549832][  T373]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.549838][  T373]  ? 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))
[   24.549840][  T373]  ? 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))
[   24.549844][  T373]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.549848][  T373]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.549850][  T373]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.549854][  T373]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.549858][  T373]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.549862][  T373]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.549868][  T373]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.549870][  T373]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.549872][  T373]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.549874][  T373]  ? move_addr_to_kernel (net/socket.c:258)
[   24.549881][  T373]  ___sys_sendmsg (net/socket.c:2767)
[   24.549884][  T373]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.549899][  T373]  __sys_sendmsg (net/socket.c:2799)
[   24.549902][  T373]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.549909][  T373]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.549912][  T373]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.549915][  T373]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.549918][  T373]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.549920][  T373] RIP: 0033:0x7f5659c6b54e
[   24.549922][  T373] 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
[   24.549924][  T373] RSP: 002b:00007ffd7b1d4300 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.549926][  T373] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5659c6b54e
[   24.549928][  T373] RDX: 0000000000000000 RSI: 00007ffd7b1d43b0 RDI: 0000000000000005
[   24.549928][  T373] RBP: 00007ffd7b1d4310 R08: 0000000000000000 R09: 0000000000000000
[   24.549929][  T373] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9159a4


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