======================================
| [   11.376613][  T242] softirqs last disabled at (21702): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.376615][  T242] Preemption disabled at:
| [   11.376616][  T242] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.376625][  T242] Tainted: [W]=WARN
[   11.376626][  T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.376628][  T242] Call Trace:
[   11.376629][  T242]  <TASK>
[   11.376631][  T242]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.376637][  T242]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.376639][  T242]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.376644][  T242]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.376648][  T242]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.376653][  T242]  __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))
[   11.376656][  T242]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.376662][  T242]  ? 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)
[   11.376664][  T242]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.376667][  T242]  put_chars (drivers/char/virtio_console.c:1176)
[   11.376670][  T242]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.376675][  T242]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.376678][  T242]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.376681][  T242]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.376683][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376685][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376689][  T242]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.376691][  T242]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.376694][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376698][  T242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.376702][  T242]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.376706][  T242]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.376708][  T242]  ? 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))
[   11.376711][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376713][  T242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.376717][  T242]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.376721][  T242]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.376723][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376729][  T242]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.376731][  T242]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.376733][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376736][  T242]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.376739][  T242]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.376741][  T242]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.376744][  T242]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.376748][  T242]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.376751][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.376753][  T242]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.376757][  T242]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.376760][  T242]  _printk (kernel/printk/printk.c:2504)
[   11.376764][  T242]  ? snapshot_read.cold (user.c:?)
[   11.376768][  T242]  ? br_multicast_flood (??:?) bridge
[   11.376780][  T242]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.376782][  T242]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.376783][  T242]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.376793][  T242] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.376802][  T242] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.376811][  T242] new_nbp (net/bridge/br_if.c:449) bridge
[   11.376819][  T242] br_add_if (net/bridge/br_if.c:592) bridge
[   11.376826][  T242]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.376830][  T242]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.376833][  T242]  ? __kernel_text_address (kernel/extable.c:79)
[   11.376837][  T242]  do_set_master (net/core/rtnetlink.c:3071)
[   11.376842][  T242]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.376845][  T242]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.376848][  T242]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.376850][  T242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.376852][  T242]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.376855][  T242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.376858][  T242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.376860][  T242]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.376862][  T242]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.376865][  T242]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.376867][  T242]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.376870][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376871][  T242]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.376874][  T242]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.376879][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.376881][  T242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.376884][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376886][  T242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.376887][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376889][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.376892][  T242]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.376895][  T242]  ? __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)
[   11.376897][  T242]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.376899][  T242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.376903][  T242]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.376904][  T242]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.376909][  T242]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.376914][  T242]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.376920][  T242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.376922][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376926][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.376928][  T242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.376930][  T242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.376932][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.376936][  T242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.376938][  T242]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.376941][  T242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.376942][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376947][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.376948][  T242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.376952][  T242]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.376954][  T242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.376956][  T242]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.376963][  T242]  ? 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))
[   11.376964][  T242]  ? 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))
[   11.376968][  T242]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.376972][  T242]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.376975][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.376979][  T242]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.376983][  T242]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.376987][  T242]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.376992][  T242]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.376994][  T242]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.376996][  T242]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.376998][  T242]  ? move_addr_to_kernel (net/socket.c:258)
[   11.377005][  T242]  ___sys_sendmsg (net/socket.c:2767)
[   11.377008][  T242]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.377024][  T242]  __sys_sendmsg (net/socket.c:2799)
[   11.377027][  T242]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.377033][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.377037][  T242]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.377039][  T242]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.377042][  T242]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.377044][  T242] RIP: 0033:0x7f74de3b354e
[   11.377047][  T242] 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
[   11.377049][  T242] RSP: 002b:00007ffc8b5e4a20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.377052][  T242] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f74de3b354e
[   11.377053][  T242] RDX: 0000000000000000 RSI: 00007ffc8b5e4ad0 RDI: 0000000000000005
[   11.377054][  T242] RBP: 00007ffc8b5e4a30 R08: 0000000000000000 R09: 0000000000000000
[   11.377055][  T242] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912ec6
[   11.377056][  T242] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8b5e5190
| [   26.473970][  T624] softirqs last disabled at (15570): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   26.473978][  T624] Preemption disabled at:
| [   26.473979][  T624] 0x0
| [   26.473989][  T624] Tainted: [W]=WARN
[   26.473990][  T624] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.473992][  T624] Call Trace:
[   26.473993][  T624]  <TASK>
[   26.473995][  T624]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.474002][  T624]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.474007][  T624]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.474011][  T624]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.474017][  T624]  __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))
[   26.474019][  T624]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.474025][  T624]  ? 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)
[   26.474028][  T624]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.474031][  T624]  put_chars (drivers/char/virtio_console.c:1176)
[   26.474034][  T624]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.474035][  T624]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   26.474039][  T624]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   26.474043][  T624]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.474046][  T624]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   26.474048][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474049][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474054][  T624]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.474055][  T624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.474059][  T624]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.474063][  T624]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.474067][  T624]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.474069][  T624]  ? 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))
[   26.474073][  T624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.474077][  T624]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.474081][  T624]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.474085][  T624]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.474087][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474092][  T624]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.474095][  T624]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.474097][  T624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.474099][  T624]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.474103][  T624]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.474105][  T624]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.474108][  T624]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.474112][  T624]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.474114][  T624]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.474117][  T624]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.474120][  T624]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.474124][  T624]  _printk (kernel/printk/printk.c:2504)
[   26.474128][  T624]  ? snapshot_read.cold (user.c:?)
[   26.474136][  T624] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   26.474147][  T624] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   26.474159][  T624] br_device_event (net/bridge/br.c:111) bridge
[   26.474167][  T624]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.474171][  T624]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   26.474178][  T624]  notifier_call_chain (kernel/notifier.c:85)
[   26.474184][  T624]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   26.474189][  T624]  ? netif_change_name (net/core/dev.c:1517)
[   26.474192][  T624]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   26.474195][  T624]  ? __kernel_text_address (kernel/extable.c:79)
[   26.474198][  T624]  ? write_profile (profile.c:?)
[   26.474200][  T624]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   26.474205][  T624]  netif_change_flags (net/core/dev.c:9882)
[   26.474209][  T624]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   26.474213][  T624]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.474215][  T624]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.474217][  T624]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.474219][  T624]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.474222][  T624]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.474225][  T624]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.474227][  T624]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.474230][  T624]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.474233][  T624]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.474235][  T624]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.474238][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474239][  T624]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   26.474242][  T624]  ? ___sys_sendmsg (net/socket.c:2757)
[   26.474247][  T624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.474249][  T624]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.474252][  T624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.474254][  T624]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.474256][  T624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.474258][  T624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.474260][  T624]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.474264][  T624]  ? __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)
[   26.474266][  T624]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.474268][  T624]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.474272][  T624]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.474277][  T624]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.474282][  T624]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.474288][  T624]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.474290][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474295][  T624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.474297][  T624]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.474299][  T624]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.474301][  T624]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.474305][  T624]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.474307][  T624]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.474310][  T624]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.474311][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474316][  T624]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.474318][  T624]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.474321][  T624]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.474323][  T624]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.474326][  T624]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.474333][  T624]  ? 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))
[   26.474334][  T624]  ? 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))
[   26.474339][  T624]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.474342][  T624]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.474345][  T624]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.474349][  T624]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.474353][  T624]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.474357][  T624]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   26.474363][  T624]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   26.474365][  T624]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.474368][  T624]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   26.474370][  T624]  ? move_addr_to_kernel (net/socket.c:258)
[   26.474377][  T624]  ___sys_sendmsg (net/socket.c:2767)
[   26.474380][  T624]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.474396][  T624]  __sys_sendmsg (net/socket.c:2799)
[   26.474399][  T624]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.474405][  T624]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.474409][  T624]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.474411][  T624]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.474415][  T624]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.474417][  T624] RIP: 0033:0x7fa326a9b54e
[   26.474419][  T624] 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
[   26.474421][  T624] RSP: 002b:00007ffc2bb797a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.474424][  T624] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa326a9b54e
[   26.474425][  T624] RDX: 0000000000000000 RSI: 00007ffc2bb79850 RDI: 0000000000000005
[   26.474426][  T624] RBP: 00007ffc2bb797b0 R08: 0000000000000000 R09: 0000000000000000
[   26.474427][  T624] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912ed5
[   26.474428][  T624] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2bb79f10
| [   26.548053][    C3]
| [   26.548119][    C3]
| [   26.548119][    C3] stack backtrace:
| [   26.548334][    C3] Tainted: [W]=WARN
[   26.548335][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.548336][    C3] Call Trace:
[   26.548338][    C3]  <IRQ>
[   26.548339][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.548344][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.548347][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.548350][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.548352][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.548353][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.548356][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.548357][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548365][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548368][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.548370][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548377][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.548379][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548385][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.548392][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548399][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.548401][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.548403][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.548406][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.548408][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.548410][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548413][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.548414][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.548421][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.548423][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.548426][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.548428][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.548430][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.548432][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.548435][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548436][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.548438][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.548440][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.548442][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.548443][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.548445][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.548447][    C3]  </IRQ>
[   26.548447][    C3]  <TASK>
[   26.548448][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.548450][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.548451][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.548454][    C3] 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
[   26.548456][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.548458][    C3] RAX: 00000000000e8b2f RBX: ff11000001c88040 RCX: ffffffffb64f0307
[   26.548460][    C3] RDX: ff11000001c88040 RSI: ffffffffb9238b01 RDI: ffffffffb8c8d8e0
[   26.548460][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.548462][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.548462][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.548465][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.548467][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.548469][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.548471][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.548473][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.548474][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.548476][    C3]  ? default_idle_call (kernel/sched/idle.c:129)
[   26.548478][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.548480][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.548481][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.548483][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.548484][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))


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
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock