======================================
| [   11.053337][  T235] softirqs last disabled at (12403): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.053340][  T235] Preemption disabled at:
| [   11.053340][  T235] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.053349][  T235] Tainted: [W]=WARN
[   11.053350][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.053352][  T235] Call Trace:
[   11.053354][  T235]  <TASK>
[   11.053355][  T235]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.053361][  T235]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.053364][  T235]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.053368][  T235]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.053372][  T235]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.053377][  T235]  __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))
[   11.053380][  T235]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.053385][  T235]  ? 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)
[   11.053388][  T235]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.053391][  T235]  put_chars (drivers/char/virtio_console.c:1176)
[   11.053394][  T235]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.053398][  T235]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.053402][  T235]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.053404][  T235]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.053406][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053408][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053411][  T235]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.053413][  T235]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.053416][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053420][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.053424][  T235]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.053428][  T235]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.053429][  T235]  ? 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))
[   11.053433][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053435][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.053439][  T235]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.053443][  T235]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.053444][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053449][  T235]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.053452][  T235]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.053454][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053456][  T235]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.053460][  T235]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.053461][  T235]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.053465][  T235]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.053468][  T235]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.053471][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.053472][  T235]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.053477][  T235]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.053480][  T235]  _printk (kernel/printk/printk.c:2504)
[   11.053484][  T235]  ? snapshot_read.cold (user.c:?)
[   11.053488][  T235]  ? br_multicast_flood (??:?) bridge
[   11.053500][  T235]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.053501][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.053502][  T235]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.053507][  T235] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.053518][  T235] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.053531][  T235] new_nbp (net/bridge/br_if.c:449) bridge
[   11.053540][  T235] br_add_if (net/bridge/br_if.c:592) bridge
[   11.053547][  T235]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.053551][  T235]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.053555][  T235]  ? __kernel_text_address (kernel/extable.c:79)
[   11.053558][  T235]  do_set_master (net/core/rtnetlink.c:3071)
[   11.053563][  T235]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.053566][  T235]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.053569][  T235]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.053570][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.053573][  T235]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.053576][  T235]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.053579][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.053581][  T235]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.053583][  T235]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.053587][  T235]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.053588][  T235]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.053591][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053593][  T235]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.053596][  T235]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.053600][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.053602][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.053605][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053607][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.053608][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053610][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053613][  T235]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.053616][  T235]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.053618][  T235]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.053620][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.053623][  T235]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.053625][  T235]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.053630][  T235]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.053635][  T235]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.053640][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.053642][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053646][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.053648][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.053650][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.053652][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.053656][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.053657][  T235]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.053660][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.053662][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053666][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.053668][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.053671][  T235]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.053673][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.053676][  T235]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.053682][  T235]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.053683][  T235]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.053687][  T235]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.053691][  T235]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.053693][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.053697][  T235]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.053701][  T235]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.053705][  T235]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.053710][  T235]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.053712][  T235]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.053714][  T235]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.053716][  T235]  ? move_addr_to_kernel (net/socket.c:258)
[   11.053723][  T235]  ___sys_sendmsg (net/socket.c:2767)
[   11.053726][  T235]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.053741][  T235]  __sys_sendmsg (net/socket.c:2799)
[   11.053744][  T235]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.053750][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.053753][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.053756][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.053759][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.053761][  T235] RIP: 0033:0x7fef7522c54e
[   11.053764][  T235] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.053766][  T235] RSP: 002b:00007ffd4af9c900 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.053769][  T235] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fef7522c54e
[   11.053770][  T235] RDX: 0000000000000000 RSI: 00007ffd4af9c9b0 RDI: 0000000000000005
[   11.053771][  T235] RBP: 00007ffd4af9c910 R08: 0000000000000000 R09: 0000000000000000
[   11.053772][  T235] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913739
[   11.053772][  T235] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4af9d070
| [   21.380070][   T46] softirqs last disabled at (54310): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) bridge
| [   21.380078][   T46] Preemption disabled at:
| [   21.380079][   T46] 0x0
| [   21.380089][   T46] Tainted: [W]=WARN
[   21.380089][   T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.380091][   T46] Workqueue: events_unbound linkwatch_event
[   21.380095][   T46] Call Trace:
[   21.380096][   T46]  <TASK>
[   21.380098][   T46]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.380104][   T46]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.380109][   T46]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.380113][   T46]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.380118][   T46]  __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))
[   21.380120][   T46]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.380126][   T46]  ? 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)
[   21.380129][   T46]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.380132][   T46]  put_chars (drivers/char/virtio_console.c:1176)
[   21.380135][   T46]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.380137][   T46]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.380142][   T46]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.380144][   T46]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.380148][   T46]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.380151][   T46]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.380153][   T46]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.380154][   T46]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.380159][   T46]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.380160][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.380164][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.380168][   T46]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.380172][   T46]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.380174][   T46]  ? 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))
[   21.380177][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.380179][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.380183][   T46]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.380188][   T46]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.380189][   T46]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.380195][   T46]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.380198][   T46]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.380199][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.380202][   T46]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.380205][   T46]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.380207][   T46]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.380210][   T46]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.380214][   T46]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.380217][   T46]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.380220][   T46]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.380224][   T46]  _printk (kernel/printk/printk.c:2504)
[   21.380228][   T46]  ? snapshot_read.cold (user.c:?)
[   21.380233][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.380237][   T46] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.380246][   T46] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   21.380255][   T46] br_stp_enable_port (net/bridge/br_stp_if.c:93) bridge
[   21.380262][   T46] br_port_carrier_check (net/bridge/br_if.c:90) bridge
[   21.380270][   T46] br_device_event (net/bridge/br.c:101) bridge
[   21.380279][   T46]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   21.380281][   T46]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   21.380288][   T46]  notifier_call_chain (kernel/notifier.c:85)
[   21.380293][   T46]  netif_state_change (net/core/dev.c:1625)
[   21.380298][   T46]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   21.380303][   T46]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   21.380305][   T46]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   21.380308][   T46]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.380310][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.380315][   T46]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   21.380317][   T46]  ? __linkwatch_run_queue (./include/linux/list.h:577)
[   21.380320][   T46]  process_one_work (kernel/workqueue.c:3387)
[   21.380327][   T46]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   21.380330][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.380337][   T46]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   21.380344][   T46]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   21.380346][   T46]  kthread (kernel/kthread.c:436)
[   21.380348][   T46]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.380351][   T46]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   21.380354][   T46]  ret_from_fork (arch/x86/kernel/process.c:158)
[   21.380358][   T46]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   21.380361][   T46]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   21.380365][   T46]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   21.380367][   T46]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.483357][    C0] softirqs last disabled at (541839): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.483359][    C0] Preemption disabled at:
| [   26.483359][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   26.483369][    C0] Tainted: [W]=WARN
[   26.483370][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.483371][    C0] Call Trace:
[   26.483373][    C0]  <IRQ>
[   26.483374][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.483380][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   26.483382][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.483385][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.483389][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.483392][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.483395][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483398][    C0]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.483402][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.483403][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.483407][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.483409][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.483411][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   26.483413][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.483414][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.483418][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.483421][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.483422][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483424][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483426][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.483429][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.483431][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483433][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483434][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483436][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.483438][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.483440][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.483443][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.483445][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483446][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.483448][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483450][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.483451][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.483453][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.483455][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.483457][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.483459][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.483461][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483463][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.483464][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   26.483469][    C0]  _printk (kernel/printk/printk.c:2504)
[   26.483473][    C0]  ? snapshot_read.cold (user.c:?)
[   26.483474][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.483479][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.483481][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.483482][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.483485][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.483488][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.483490][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.483492][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.483494][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.483496][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483508][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483510][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.483512][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.483519][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.483521][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483528][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.483534][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.483541][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.483544][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.483546][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.483549][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.483551][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.483553][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483556][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.483557][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.483564][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.483566][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.483569][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.483577][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.483579][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.483581][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.483584][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483585][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.483587][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.483589][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.483591][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.483592][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.483594][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.483597][    C0]  </IRQ>
[   26.483598][    C0]  <TASK>
[   26.483598][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.483600][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.483603][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.483606][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.483607][    C0] RSP: 0018:ffffffff8d007cf8 EFLAGS: 00000296
[   26.483611][    C0] RAX: 000000000008448d RBX: ffffffff8d01c600 RCX: ffffffff8a0f0307
[   26.483612][    C0] RDX: ffffffff8d01c600 RSI: ffffffff8ce38b01 RDI: ffffffff8c88d8e0
[   26.483613][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.483614][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff1a00fa2
[   26.483615][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   26.483616][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.483619][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.483621][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.483623][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   26.483625][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.483626][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   26.483628][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.483630][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.483631][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.483633][    C0]  do_idle (kernel/sched/idle.c:355)
[   26.483635][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.483636][    C0]  rest_init (init/main.c:727)
[   26.483638][    C0]  ? __cpuidle_text_end (??:?)
[   26.483641][    C0]  ? rest_init (init/main.c:727)
[   26.483643][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   26.483647][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   26.483649][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   26.483652][    C0]  start_kernel (init/main.c:1185)
[   26.483654][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   26.483656][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   26.483658][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.551472][    C0]
| [   26.551551][    C0]
| [   26.551551][    C0] stack backtrace:
| [   26.551798][    C0] Tainted: [W]=WARN
[   26.551799][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.551801][    C0] Call Trace:
[   26.551802][    C0]  <IRQ>
[   26.551803][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.551808][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.551811][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.551814][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.551816][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.551818][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.551820][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.551822][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.551829][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551832][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.551834][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.551840][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.551842][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.551848][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.551855][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.551862][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.551864][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.551866][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.551870][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.551872][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.551873][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551876][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.551877][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.551884][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.551886][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.551888][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.551891][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.551893][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.551895][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.551897][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551899][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.551901][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.551902][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.551904][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.551906][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.551907][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.551909][    C0]  </IRQ>
[   26.551909][    C0]  <TASK>
[   26.551910][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.551912][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.551913][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.551916][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.551917][    C0] RSP: 0018:ffffffff8d007cf8 EFLAGS: 00000296
[   26.551920][    C0] RAX: 000000000008448d RBX: ffffffff8d01c600 RCX: ffffffff8a0f0307
[   26.551921][    C0] RDX: ffffffff8d01c600 RSI: ffffffff8ce38b01 RDI: ffffffff8c88d8e0
[   26.551922][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.551923][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff1a00fa2
[   26.551924][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   26.551926][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.551928][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.551929][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.551931][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   26.551933][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.551934][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   26.551936][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.551938][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.551939][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551941][    C0]  do_idle (kernel/sched/idle.c:355)
[   26.551943][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.551944][    C0]  rest_init (init/main.c:727)
[   26.551946][    C0]  ? __cpuidle_text_end (??:?)
[   26.551949][    C0]  ? rest_init (init/main.c:727)
[   26.551951][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   26.551955][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   26.551957][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   26.551960][    C0]  start_kernel (init/main.c:1185)
[   26.551961][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   26.551963][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   26.551965][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.804772][  T264] softirqs last disabled at (0): 0x0
| [   27.804773][  T264] Preemption disabled at:
| [   27.804774][  T264] 0x0
| [   27.804782][  T264] Tainted: [W]=WARN
[   27.804783][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.804785][  T264] Call Trace:
[   27.804786][  T264]  <TASK>
[   27.804787][  T264]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.804793][  T264]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.804797][  T264]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.804800][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804804][  T264]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.804808][  T264]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.804811][  T264]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.804814][  T264]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.804816][  T264]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.804818][  T264]  put_chars (drivers/char/virtio_console.c:1176)
[   27.804820][  T264]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.804821][  T264]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   27.804825][  T264]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.804828][  T264]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.804830][  T264]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.804831][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804833][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.804835][  T264]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.804838][  T264]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.804839][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804841][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804843][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804844][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.804846][  T264]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.804848][  T264]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.804850][  T264]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.804853][  T264]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.804854][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.804856][  T264]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.804857][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804859][  T264]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.804860][  T264]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.804862][  T264]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   27.804864][  T264]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.804866][  T264]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.804868][  T264]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.804870][  T264]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.804872][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804874][  T264]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.804876][  T264]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   27.804878][  T264]  _printk (kernel/printk/printk.c:2504)
[   27.804881][  T264]  ? snapshot_read.cold (user.c:?)
[   27.804883][  T264]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   27.804888][  T264] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   27.804901][  T264] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   27.804909][  T264] br_device_event (net/bridge/br.c:111) bridge
[   27.804918][  T264]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   27.804921][  T264]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   27.804923][  T264]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   27.804926][  T264]  notifier_call_chain (kernel/notifier.c:85)
[   27.804930][  T264]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   27.804933][  T264]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.804935][  T264]  ? netif_change_name (net/core/dev.c:1517)
[   27.804937][  T264]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   27.804939][  T264]  ? __kernel_text_address (kernel/extable.c:79)
[   27.804941][  T264]  ? write_profile (profile.c:?)
[   27.804943][  T264]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   27.804946][  T264]  netif_change_flags (net/core/dev.c:9882)
[   27.804948][  T264]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   27.804951][  T264]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   27.804953][  T264]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   27.804954][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804955][  T264]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   27.804959][  T264]  ? kasan_save_stack (mm/kasan/common.c:58)
[   27.804962][  T264]  ? kasan_save_stack (mm/kasan/common.c:57)
[   27.804964][  T264]  ? kasan_save_track (mm/kasan/common.c:78)
[   27.804965][  T264]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.804967][  T264]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   27.804968][  T264]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   27.804969][  T264]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.804970][  T264]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.804973][  T264]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.804974][  T264]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.804976][  T264]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   27.804978][  T264]  ? ___sys_sendmsg (net/socket.c:2767)
[   27.804979][  T264]  ? __sys_sendmsg (net/socket.c:2799)
[   27.804981][  T264]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.804983][  T264]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.804985][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804987][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.804988][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804990][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.804992][  T264]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   27.804995][  T264]  ? __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)
[   27.804996][  T264]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   27.804998][  T264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.804999][  T264]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   27.805001][  T264]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   27.805003][  T264]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.805005][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805007][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.805008][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.805009][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805011][  T264]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   27.805015][  T264]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   27.805016][  T264]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   27.805018][  T264]  ? __kernel_text_address (kernel/extable.c:79)
[   27.805019][  T264]  ? write_profile (profile.c:?)
[   27.805020][  T264]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   27.805021][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805023][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805024][  T264]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   27.805028][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.805029][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805031][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.805032][  T264]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.805034][  T264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.805035][  T264]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   27.805037][  T264]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   27.805039][  T264]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.805040][  T264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.805042][  T264]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.805043][  T264]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   27.805044][  T264]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   27.805047][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805048][  T264]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.805050][  T264]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.805052][  T264]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   27.805054][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805055][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805057][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.805059][  T264]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.805061][  T264]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   27.805062][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805064][  T264]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.805068][  T264]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   27.805070][  T264]  ? copy_msghdr_from_user (net/socket.c:2650)
[   27.805072][  T264]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   27.805073][  T264]  ? move_addr_to_kernel (net/socket.c:258)
[   27.805075][  T264]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   27.805077][  T264]  ___sys_sendmsg (net/socket.c:2767)
[   27.805079][  T264]  ? copy_msghdr_from_user (net/socket.c:2619)
[   27.805085][  T264]  __sys_sendmsg (net/socket.c:2799)
[   27.805087][  T264]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   27.805090][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.805092][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.805093][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.805096][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.805097][  T264] RIP: 0033:0x7f0f9a34a54e
[   27.805099][  T264] 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
[   27.805101][  T264] RSP: 002b:00007fffbae095e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   27.805105][  T264] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0f9a34a54e
[   27.805106][  T264] RDX: 0000000000000000 RSI: 00007fffbae09690 RDI: 0000000000000005
[   27.805107][  T264] RBP: 00007fffbae095f0 R08: 0000000000000000 R09: 0000000000000000
[   27.805108][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91374a
[   27.805109][  T264] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffbae09d50
| [   34.103387][  T289] softirqs last disabled at (0): 0x0
| [   34.103389][  T289] Preemption disabled at:
| [   34.103390][  T289] 0x0
| [   34.103397][  T289] Tainted: [W]=WARN
[   34.103398][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.103400][  T289] Call Trace:
[   34.103402][  T289]  <TASK>
[   34.103403][  T289]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   34.103409][  T289]  __might_resched.cold (kernel/sched/core.c:9234)
[   34.103412][  T289]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   34.103416][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103420][  T289]  __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))
[   34.103423][  T289]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   34.103426][  T289]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.103430][  T289]  ? 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)
[   34.103432][  T289]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.103434][  T289]  put_chars (drivers/char/virtio_console.c:1176)
[   34.103436][  T289]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   34.103437][  T289]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   34.103440][  T289]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   34.103444][  T289]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   34.103446][  T289]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   34.103447][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103449][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103451][  T289]  console_emit_next_record (kernel/printk/printk.c:3183)
[   34.103454][  T289]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   34.103456][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103457][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103459][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103460][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103462][  T289]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   34.103464][  T289]  console_flush_one_record (kernel/printk/printk.c:3268)
[   34.103466][  T289]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   34.103469][  T289]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   34.103470][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103472][  T289]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   34.103473][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103475][  T289]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.103476][  T289]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   34.103478][  T289]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   34.103480][  T289]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   34.103482][  T289]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   34.103484][  T289]  vprintk_emit (kernel/printk/printk.c:2479)
[   34.103486][  T289]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   34.103488][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103490][  T289]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   34.103492][  T289]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   34.103494][  T289]  _printk (kernel/printk/printk.c:2504)
[   34.103497][  T289]  ? snapshot_read.cold (user.c:?)
[   34.103499][  T289]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   34.103504][  T289] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   34.103517][  T289] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   34.103525][  T289] br_device_event (net/bridge/br.c:111) bridge
[   34.103533][  T289]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   34.103536][  T289]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   34.103538][  T289]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   34.103541][  T289]  notifier_call_chain (kernel/notifier.c:85)
[   34.103544][  T289]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   34.103548][  T289]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   34.103550][  T289]  ? netif_change_name (net/core/dev.c:1517)
[   34.103552][  T289]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   34.103554][  T289]  ? __kernel_text_address (kernel/extable.c:79)
[   34.103556][  T289]  ? write_profile (profile.c:?)
[   34.103558][  T289]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   34.103561][  T289]  netif_change_flags (net/core/dev.c:9882)
[   34.103563][  T289]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   34.103566][  T289]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   34.103567][  T289]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   34.103568][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103570][  T289]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   34.103574][  T289]  ? kasan_save_stack (mm/kasan/common.c:58)
[   34.103577][  T289]  ? kasan_save_stack (mm/kasan/common.c:57)
[   34.103578][  T289]  ? kasan_save_track (mm/kasan/common.c:78)
[   34.103579][  T289]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   34.103581][  T289]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   34.103582][  T289]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   34.103583][  T289]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.103585][  T289]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   34.103587][  T289]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.103588][  T289]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.103590][  T289]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   34.103592][  T289]  ? ___sys_sendmsg (net/socket.c:2767)
[   34.103594][  T289]  ? __sys_sendmsg (net/socket.c:2799)
[   34.103595][  T289]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.103602][  T289]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.103605][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103607][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103608][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103609][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103611][  T289]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   34.103614][  T289]  ? __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)
[   34.103616][  T289]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   34.103617][  T289]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   34.103619][  T289]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   34.103621][  T289]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   34.103623][  T289]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   34.103625][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103626][  T289]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.103628][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103629][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103631][  T289]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   34.103634][  T289]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   34.103635][  T289]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   34.103637][  T289]  ? __kernel_text_address (kernel/extable.c:79)
[   34.103638][  T289]  ? write_profile (profile.c:?)
[   34.103639][  T289]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   34.103640][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103642][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103644][  T289]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   34.103647][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103649][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103650][  T289]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   34.103652][  T289]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   34.103653][  T289]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.103655][  T289]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   34.103656][  T289]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   34.103658][  T289]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   34.103660][  T289]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   34.103661][  T289]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.103663][  T289]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   34.103664][  T289]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   34.103666][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103668][  T289]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.103670][  T289]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   34.103672][  T289]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   34.103673][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103675][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103677][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.103678][  T289]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   34.103680][  T289]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   34.103682][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103684][  T289]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   34.103686][  T289]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   34.103687][  T289]  ? copy_msghdr_from_user (net/socket.c:2650)
[   34.103689][  T289]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   34.103690][  T289]  ? move_addr_to_kernel (net/socket.c:258)
[   34.103692][  T289]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   34.103694][  T289]  ___sys_sendmsg (net/socket.c:2767)
[   34.103696][  T289]  ? copy_msghdr_from_user (net/socket.c:2619)
[   34.103700][  T289]  __sys_sendmsg (net/socket.c:2799)
[   34.103702][  T289]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   34.103705][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.103707][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.103708][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   34.103711][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.103712][  T289] RIP: 0033:0x7f982d9db54e
[   34.103714][  T289] 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
[   34.103715][  T289] RSP: 002b:00007ffd87fc3870 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   34.103719][  T289] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f982d9db54e
[   34.103720][  T289] RDX: 0000000000000000 RSI: 00007ffd87fc3920 RDI: 0000000000000005
[   34.103721][  T289] RBP: 00007ffd87fc3880 R08: 0000000000000000 R09: 0000000000000000
[   34.103722][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913750


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print