======================================
| [   11.847416][  T279] softirqs last disabled at (16059): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.847419][  T279] Preemption disabled at:
| [   11.847419][  T279] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.847428][  T279] Tainted: [W]=WARN
[   11.847429][  T279] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.847430][  T279] Call Trace:
[   11.847432][  T279]  <TASK>
[   11.847433][  T279]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.847439][  T279]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.847441][  T279]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.847445][  T279]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.847449][  T279]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.847453][  T279]  __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))
[   11.847455][  T279]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.847461][  T279]  ? 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)
[   11.847464][  T279]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.847468][  T279]  put_chars (drivers/char/virtio_console.c:1176)
[   11.847470][  T279]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.847473][  T279]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.847478][  T279]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.847486][  T279]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.847488][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847491][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.847495][  T279]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.847499][  T279]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.847501][  T279]  ? 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))
[   11.847504][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847506][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.847510][  T279]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.847514][  T279]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.847516][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.847521][  T279]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.847524][  T279]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.847526][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847527][  T279]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.847531][  T279]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.847533][  T279]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.847536][  T279]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.847538][  T279]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.847540][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.847542][  T279]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.847546][  T279]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.847549][  T279]  _printk (kernel/printk/printk.c:2504)
[   11.847553][  T279]  ? snapshot_read.cold (user.c:?)
[   11.847556][  T279]  ? br_multicast_flood (??:?)
[   11.847559][  T279]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.847561][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.847562][  T279]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.847566][  T279]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.847571][  T279]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.847573][  T279]  new_nbp (net/bridge/br_if.c:449)
[   11.847577][  T279]  br_add_if (net/bridge/br_if.c:592)
[   11.847579][  T279]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.847583][  T279]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.847588][  T279]  do_set_master (net/core/rtnetlink.c:3071)
[   11.847592][  T279]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.847595][  T279]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.847599][  T279]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.847600][  T279]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.847602][  T279]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.847606][  T279]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.847608][  T279]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.847610][  T279]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.847612][  T279]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.847614][  T279]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.847615][  T279]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.847616][  T279]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.847619][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.847621][  T279]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.847623][  T279]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.847627][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.847629][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.847632][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847633][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.847635][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847636][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847638][  T279]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.847640][  T279]  ? __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)
[   11.847641][  T279]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.847643][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.847646][  T279]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.847648][  T279]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.847653][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847655][  T279]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.847660][  T279]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.847665][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.847667][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.847672][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.847674][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.847676][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.847678][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.847681][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.847683][  T279]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.847686][  T279]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.847688][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.847692][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.847694][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.847697][  T279]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.847701][  T279]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.847703][  T279]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.847710][  T279]  ? 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))
[   11.847712][  T279]  ? 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))
[   11.847716][  T279]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.847720][  T279]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.847723][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.847727][  T279]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.847731][  T279]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.847735][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.847736][  T279]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.847741][  T279]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.847744][  T279]  ____sys_sendmsg (net/socket.c:2713)
[   11.847746][  T279]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.847748][  T279]  ? sock_write_iter (net/socket.c:1269)
[   11.847750][  T279]  ? move_addr_to_kernel (net/socket.c:258)
[   11.847757][  T279]  ___sys_sendmsg (net/socket.c:2767)
[   11.847760][  T279]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.847776][  T279]  __sys_sendmsg (net/socket.c:2799)
[   11.847779][  T279]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.847785][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.847788][  T279]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.847791][  T279]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.847794][  T279]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.847796][  T279] RIP: 0033:0x7fbfe244c54e
[   11.847800][  T279] 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
[   11.847801][  T279] RSP: 002b:00007fff08877820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.847804][  T279] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbfe244c54e
[   11.847806][  T279] RDX: 0000000000000000 RSI: 00007fff088778d0 RDI: 0000000000000005
[   11.847806][  T279] RBP: 00007fff08877830 R08: 0000000000000000 R09: 0000000000000000
[   11.847807][  T279] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919c87
[   11.847808][  T279] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff08877f90
| [   14.321202][  T341] softirqs last disabled at (14430): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.321205][  T341] Preemption disabled at:
| [   14.321205][  T341] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.321214][  T341] Tainted: [W]=WARN
[   14.321214][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.321216][  T341] Call Trace:
[   14.321217][  T341]  <TASK>
[   14.321219][  T341]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.321225][  T341]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.321227][  T341]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.321231][  T341]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.321235][  T341]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.321240][  T341]  __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))
[   14.321242][  T341]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.321248][  T341]  ? 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)
[   14.321251][  T341]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.321255][  T341]  put_chars (drivers/char/virtio_console.c:1176)
[   14.321257][  T341]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.321260][  T341]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.321265][  T341]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.321275][  T341]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.321278][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321281][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.321285][  T341]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.321289][  T341]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.321290][  T341]  ? 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))
[   14.321294][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321295][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.321299][  T341]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.321303][  T341]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.321305][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.321311][  T341]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.321313][  T341]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.321315][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321317][  T341]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   14.321321][  T341]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.321322][  T341]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.321325][  T341]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.321328][  T341]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.321329][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.321331][  T341]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.321334][  T341]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.321335][  T341]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.321337][  T341]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.321339][  T341]  ? ____sys_sendmsg (net/socket.c:2713)
[   14.321341][  T341]  ? ___sys_sendmsg (net/socket.c:2767)
[   14.321344][  T341]  _printk (kernel/printk/printk.c:2504)
[   14.321348][  T341]  ? snapshot_read.cold (user.c:?)
[   14.321352][  T341]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   14.321356][  T341]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   14.321360][  T341]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   14.321362][  T341]  ? netdev_notice (net/core/dev.c:13194)
[   14.321367][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321369][  T341]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   14.321371][  T341]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   14.321373][  T341]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   14.321375][  T341]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   14.321379][  T341]  dev_set_allmulti (net/core/dev_api.c:315)
[   14.321383][  T341]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   14.321390][  T341]  br_del_if (net/bridge/br_if.c:732)
[   14.321392][  T341]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.321396][  T341]  do_set_master (net/core/rtnetlink.c:3055)
[   14.321399][  T341]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.321402][  T341]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.321406][  T341]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.321408][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.321410][  T341]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.321414][  T341]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.321416][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.321418][  T341]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.321420][  T341]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.321422][  T341]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.321423][  T341]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.321425][  T341]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.321427][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.321429][  T341]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   14.321431][  T341]  ? ___sys_sendmsg (net/socket.c:2758)
[   14.321434][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.321436][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.321439][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321441][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.321442][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321443][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321445][  T341]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.321447][  T341]  ? __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)
[   14.321450][  T341]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.321452][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.321455][  T341]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.321456][  T341]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.321461][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321463][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.321468][  T341]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.321474][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.321476][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.321480][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.321482][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.321484][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.321486][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.321490][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.321492][  T341]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.321495][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.321496][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.321501][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.321502][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.321506][  T341]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.321508][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.321511][  T341]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.321517][  T341]  ? 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))
[   14.321519][  T341]  ? 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))
[   14.321524][  T341]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.321528][  T341]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.321530][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.321534][  T341]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.321538][  T341]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.321542][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.321544][  T341]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   14.321549][  T341]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.321552][  T341]  ____sys_sendmsg (net/socket.c:2713)
[   14.321554][  T341]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.321556][  T341]  ? sock_write_iter (net/socket.c:1269)
[   14.321558][  T341]  ? move_addr_to_kernel (net/socket.c:258)
[   14.321565][  T341]  ___sys_sendmsg (net/socket.c:2767)
[   14.321568][  T341]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.321584][  T341]  __sys_sendmsg (net/socket.c:2799)
[   14.321587][  T341]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.321593][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.321596][  T341]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.321599][  T341]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.321602][  T341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.321604][  T341] RIP: 0033:0x7fe390da554e
[   14.321608][  T341] 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
[   14.321610][  T341] RSP: 002b:00007fff1c04caa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.321612][  T341] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe390da554e
[   14.321614][  T341] RDX: 0000000000000000 RSI: 00007fff1c04cb50 RDI: 0000000000000005
[   14.321614][  T341] RBP: 00007fff1c04cab0 R08: 0000000000000000 R09: 0000000000000000
[   14.321615][  T341] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919c89
[   14.321616][  T341] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff1c04d210
| [   17.066103][  T424] softirqs last disabled at (14696): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   17.066106][  T424] Preemption disabled at:
| [   17.066106][  T424] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.066115][  T424] Tainted: [W]=WARN
[   17.066116][  T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.066117][  T424] Call Trace:
[   17.066119][  T424]  <TASK>
[   17.066120][  T424]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.066126][  T424]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.066128][  T424]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.066132][  T424]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.066136][  T424]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.066140][  T424]  __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))
[   17.066142][  T424]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.066149][  T424]  ? 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)
[   17.066152][  T424]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.066155][  T424]  put_chars (drivers/char/virtio_console.c:1176)
[   17.066158][  T424]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.066161][  T424]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.066166][  T424]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.066173][  T424]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.066176][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066179][  T424]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.066183][  T424]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.066187][  T424]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.066189][  T424]  ? 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))
[   17.066192][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066193][  T424]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.066197][  T424]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.066202][  T424]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.066203][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.066209][  T424]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.066211][  T424]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.066213][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066215][  T424]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   17.066219][  T424]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.066220][  T424]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.066223][  T424]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.066226][  T424]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.066227][  T424]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.066229][  T424]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.066232][  T424]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.066234][  T424]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.066235][  T424]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   17.066238][  T424]  ? ____sys_sendmsg (net/socket.c:2713)
[   17.066239][  T424]  ? ___sys_sendmsg (net/socket.c:2767)
[   17.066243][  T424]  _printk (kernel/printk/printk.c:2504)
[   17.066246][  T424]  ? snapshot_read.cold (user.c:?)
[   17.066251][  T424]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   17.066254][  T424]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   17.066258][  T424]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   17.066261][  T424]  ? netdev_notice (net/core/dev.c:13194)
[   17.066265][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066270][  T424]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   17.066272][  T424]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   17.066274][  T424]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   17.066277][  T424]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   17.066281][  T424]  dev_set_allmulti (net/core/dev_api.c:315)
[   17.066285][  T424]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   17.066291][  T424]  br_del_if (net/bridge/br_if.c:732)
[   17.066293][  T424]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.066297][  T424]  do_set_master (net/core/rtnetlink.c:3055)
[   17.066300][  T424]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.066304][  T424]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.066307][  T424]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.066308][  T424]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.066311][  T424]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.066314][  T424]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.066316][  T424]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.066318][  T424]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.066321][  T424]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.066323][  T424]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.066324][  T424]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.066325][  T424]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.066327][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.066329][  T424]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   17.066331][  T424]  ? ___sys_sendmsg (net/socket.c:2758)
[   17.066335][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.066337][  T424]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.066339][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066341][  T424]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.066342][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066343][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066345][  T424]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.066347][  T424]  ? __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)
[   17.066350][  T424]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.066352][  T424]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.066355][  T424]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.066356][  T424]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.066361][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066363][  T424]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.066368][  T424]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.066373][  T424]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.066375][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.066380][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.066382][  T424]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.066384][  T424]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.066385][  T424]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.066389][  T424]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.066391][  T424]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.066394][  T424]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.066396][  T424]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.066400][  T424]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.066402][  T424]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.066405][  T424]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.066407][  T424]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.066410][  T424]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.066416][  T424]  ? 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))
[   17.066418][  T424]  ? 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))
[   17.066423][  T424]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.066427][  T424]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.066429][  T424]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.066433][  T424]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.066437][  T424]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.066441][  T424]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.066442][  T424]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   17.066447][  T424]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   17.066450][  T424]  ____sys_sendmsg (net/socket.c:2713)
[   17.066452][  T424]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.066454][  T424]  ? sock_write_iter (net/socket.c:1269)
[   17.066456][  T424]  ? move_addr_to_kernel (net/socket.c:258)
[   17.066463][  T424]  ___sys_sendmsg (net/socket.c:2767)
[   17.066466][  T424]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.066481][  T424]  __sys_sendmsg (net/socket.c:2799)
[   17.066484][  T424]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.066490][  T424]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.066493][  T424]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.066496][  T424]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.066499][  T424]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.066501][  T424] RIP: 0033:0x7fccbf69d54e
[   17.066505][  T424] 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
[   17.066507][  T424] RSP: 002b:00007ffdbc66d6f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.066509][  T424] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fccbf69d54e
[   17.066511][  T424] RDX: 0000000000000000 RSI: 00007ffdbc66d7a0 RDI: 0000000000000005
[   17.066512][  T424] RBP: 00007ffdbc66d700 R08: 0000000000000000 R09: 0000000000000000
[   17.066513][  T424] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919c8c
[   17.066514][  T424] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdbc66de60
| [   19.796836][  T502] softirqs last disabled at (15162): dev_mc_unsync (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/netdevice.h:5008 (discriminator 2) net/core/dev_addr_lists.c:1148 (discriminator 2) net/core/dev_addr_lists.c:1142 (discriminator 2))
| [   19.796839][  T502] Preemption disabled at:
| [   19.796840][  T502] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.796848][  T502] Tainted: [W]=WARN
[   19.796849][  T502] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.796850][  T502] Call Trace:
[   19.796852][  T502]  <TASK>
[   19.796853][  T502]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.796859][  T502]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.796861][  T502]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.796865][  T502]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.796869][  T502]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.796874][  T502]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.796875][  T502]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.796881][  T502]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.796884][  T502]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.796888][  T502]  put_chars (drivers/char/virtio_console.c:1176)
[   19.796890][  T502]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.796891][  T502]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   19.796896][  T502]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   19.796900][  T502]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.796904][  T502]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.796905][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.796907][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.796915][  T502]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.796917][  T502]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.796921][  T502]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.796925][  T502]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.796929][  T502]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.796931][  T502]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   19.796934][  T502]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.796936][  T502]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.796940][  T502]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.796944][  T502]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.796946][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.796951][  T502]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.796954][  T502]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.796956][  T502]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.796958][  T502]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   19.796961][  T502]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.796963][  T502]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.796965][  T502]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.796969][  T502]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.796971][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.796975][  T502]  _printk (kernel/printk/printk.c:2504)
[   19.796979][  T502]  ? snapshot_read.cold (user.c:?)
[   19.796981][  T502]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.796983][  T502]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.796985][  T502]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.796986][  T502]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.796987][  T502]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.796990][  T502]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.796994][  T502]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.796997][  T502]  ? netdev_notice (net/core/dev.c:13194)
[   19.797000][  T502]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.797008][  T502]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   19.797011][  T502]  netif_set_promiscuity (net/core/dev.c:9699)
[   19.797015][  T502]  dev_set_promiscuity (net/core/dev_api.c:288)
[   19.797017][  T502]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   19.797021][  T502]  macvlan_stop (drivers/net/macvlan.c:717)
[   19.797024][  T502]  __dev_close_many (net/core/dev.c:1798)
[   19.797028][  T502]  ? net_generic (./include/linux/rcupdate.h:882 ./include/net/netns/generic.h:48) vxlan
[   19.797035][  T502]  ? netif_open (net/core/dev.c:1755)
[   19.797038][  T502]  ? netif_close_many (net/core/dev.c:1824)
[   19.797042][  T502]  netif_close_many (net/core/dev.c:1824)
[   19.797045][  T502]  ? __dev_close_many (net/core/dev.c:1804)
[   19.797048][  T502]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   19.797052][  T502]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   19.797056][  T502]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.797060][  T502]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   19.797062][  T502]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   19.797065][  T502]  ? netdev_upper_dev_unlink (net/core/dev.c:9114)
[   19.797067][  T502]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   19.797071][  T502]  rtnl_dellink (net/core/rtnetlink.c:3652 net/core/rtnetlink.c:3694)
[   19.797073][  T502]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.797075][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.797076][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.797079][  T502]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.797100][  T502]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.797102][  T502]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.797105][  T502]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.797107][  T502]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.797109][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.797114][  T502]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.797116][  T502]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.797118][  T502]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.797119][  T502]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.797123][  T502]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.797125][  T502]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.797128][  T502]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.797129][  T502]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.797134][  T502]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.797136][  T502]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.797141][  T502]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.797143][  T502]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.797146][  T502]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.797152][  T502]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.797154][  T502]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.797159][  T502]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.797163][  T502]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.797165][  T502]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.797169][  T502]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.797173][  T502]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.797177][  T502]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.797179][  T502]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   19.797184][  T502]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   19.797188][  T502]  ____sys_sendmsg (net/socket.c:2713)
[   19.797190][  T502]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.797192][  T502]  ? sock_write_iter (net/socket.c:1269)
[   19.797194][  T502]  ? move_addr_to_kernel (net/socket.c:258)
[   19.797201][  T502]  ___sys_sendmsg (net/socket.c:2767)
[   19.797204][  T502]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.797219][  T502]  __sys_sendmsg (net/socket.c:2799)
[   19.797222][  T502]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.797228][  T502]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.797231][  T502]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.797234][  T502]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.797237][  T502]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.797239][  T502] RIP: 0033:0x7f4ff95e154e
[   19.797242][  T502] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.797244][  T502] RSP: 002b:00007ffca6eb9760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.797246][  T502] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4ff95e154e
[   19.797248][  T502] RDX: 0000000000000000 RSI: 00007ffca6eb9810 RDI: 0000000000000005
[   19.797249][  T502] RBP: 00007ffca6eb9770 R08: 0000000000000000 R09: 0000000000000000
[   19.797249][  T502] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919c8f
[   19.797250][  T502] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca6eb9ed0
| [   22.544252][  T591] softirqs last disabled at (10884): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.544254][  T591] Preemption disabled at:
| [   22.544255][  T591] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.544263][  T591] Tainted: [W]=WARN
[   22.544264][  T591] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.544266][  T591] Call Trace:
[   22.544269][  T591]  <TASK>
[   22.544271][  T591]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.544277][  T591]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.544278][  T591]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.544282][  T591]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.544287][  T591]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.544291][  T591]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.544293][  T591]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.544300][  T591]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.544302][  T591]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.544306][  T591]  put_chars (drivers/char/virtio_console.c:1176)
[   22.544308][  T591]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.544311][  T591]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.544316][  T591]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.544324][  T591]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.544327][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544330][  T591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.544334][  T591]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.544338][  T591]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.544339][  T591]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.544343][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544344][  T591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.544348][  T591]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.544353][  T591]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.544354][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.544360][  T591]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.544363][  T591]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.544364][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544366][  T591]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   22.544370][  T591]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.544372][  T591]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.544374][  T591]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.544377][  T591]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.544379][  T591]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.544380][  T591]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.544384][  T591]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.544385][  T591]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.544387][  T591]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.544389][  T591]  ? ____sys_sendmsg (net/socket.c:2713)
[   22.544391][  T591]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.544394][  T591]  _printk (kernel/printk/printk.c:2504)
[   22.544398][  T591]  ? snapshot_read.cold (user.c:?)
[   22.544402][  T591]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.544406][  T591]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.544409][  T591]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.544412][  T591]  ? netdev_notice (net/core/dev.c:13194)
[   22.544416][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544418][  T591]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.544421][  T591]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.544423][  T591]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.544425][  T591]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.544429][  T591]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.544433][  T591]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   22.544439][  T591]  br_del_if (net/bridge/br_if.c:732)
[   22.544441][  T591]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.544444][  T591]  do_set_master (net/core/rtnetlink.c:3055)
[   22.544448][  T591]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.544451][  T591]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.544454][  T591]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.544456][  T591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.544458][  T591]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.544462][  T591]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.544464][  T591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.544466][  T591]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.544468][  T591]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.544470][  T591]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.544471][  T591]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.544473][  T591]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.544475][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.544477][  T591]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.544479][  T591]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.544482][  T591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.544484][  T591]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.544487][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544489][  T591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.544490][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544491][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544493][  T591]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.544495][  T591]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.544498][  T591]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.544500][  T591]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.544503][  T591]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.544505][  T591]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.544509][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544512][  T591]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.544517][  T591]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.544522][  T591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.544524][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.544529][  T591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.544530][  T591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.544533][  T591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.544534][  T591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.544538][  T591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.544540][  T591]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.544543][  T591]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.544545][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.544549][  T591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.544551][  T591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.544555][  T591]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.544557][  T591]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.544560][  T591]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.544566][  T591]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.544568][  T591]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.544573][  T591]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.544576][  T591]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.544579][  T591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.544583][  T591]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.544587][  T591]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.544591][  T591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.544593][  T591]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.544598][  T591]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.544600][  T591]  ____sys_sendmsg (net/socket.c:2713)
[   22.544603][  T591]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.544605][  T591]  ? sock_write_iter (net/socket.c:1269)
[   22.544607][  T591]  ? move_addr_to_kernel (net/socket.c:258)
[   22.544614][  T591]  ___sys_sendmsg (net/socket.c:2767)
[   22.544617][  T591]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.544633][  T591]  __sys_sendmsg (net/socket.c:2799)
[   22.544636][  T591]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.544642][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.544645][  T591]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.544648][  T591]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.544651][  T591]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.544653][  T591] RIP: 0033:0x7fe7e1b4854e
[   22.544657][  T591] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.544659][  T591] RSP: 002b:00007ffe1f8234b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.544661][  T591] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe7e1b4854e
[   22.544663][  T591] RDX: 0000000000000000 RSI: 00007ffe1f823560 RDI: 0000000000000005
[   22.544664][  T591] RBP: 00007ffe1f8234c0 R08: 0000000000000000 R09: 0000000000000000
[   22.544664][  T591] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919c91


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
dev_mc_unsync:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars