======================================
| [   12.982417][  T283] softirqs last disabled at (16208): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.982420][  T283] Preemption disabled at:
| [   12.982420][  T283] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.982430][  T283] Tainted: [W]=WARN
[   12.982430][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.982432][  T283] Call Trace:
[   12.982433][  T283]  <TASK>
[   12.982435][  T283]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.982441][  T283]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.982443][  T283]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.982447][  T283]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.982451][  T283]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.982456][  T283]  __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))
[   12.982457][  T283]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.982464][  T283]  ? 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)
[   12.982467][  T283]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.982473][  T283]  put_chars (drivers/char/virtio_console.c:1176)
[   12.982476][  T283]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.982479][  T283]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.982484][  T283]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.982492][  T283]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.982495][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982498][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.982502][  T283]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.982506][  T283]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.982508][  T283]  ? 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))
[   12.982511][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982513][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.982518][  T283]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.982522][  T283]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.982524][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.982530][  T283]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.982533][  T283]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.982535][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982537][  T283]  ? 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)
[   12.982541][  T283]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.982542][  T283]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.982545][  T283]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.982548][  T283]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.982550][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.982552][  T283]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.982557][  T283]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.982561][  T283]  _printk (kernel/printk/printk.c:2504)
[   12.982564][  T283]  ? snapshot_read.cold (user.c:?)
[   12.982568][  T283]  ? br_multicast_flood (??:?)
[   12.982572][  T283]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.982573][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.982575][  T283]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.982579][  T283]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   12.982584][  T283]  br_init_port (net/bridge/br_stp_if.c:39)
[   12.982586][  T283]  new_nbp (net/bridge/br_if.c:449)
[   12.982590][  T283]  br_add_if (net/bridge/br_if.c:592)
[   12.982593][  T283]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.982597][  T283]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.982602][  T283]  do_set_master (net/core/rtnetlink.c:3071)
[   12.982606][  T283]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.982610][  T283]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.982613][  T283]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.982615][  T283]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.982617][  T283]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.982621][  T283]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.982623][  T283]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.982625][  T283]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.982627][  T283]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.982630][  T283]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.982631][  T283]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.982632][  T283]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.982634][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.982636][  T283]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.982639][  T283]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.982643][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.982645][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.982647][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982649][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.982651][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982652][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982654][  T283]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.982656][  T283]  ? __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)
[   12.982657][  T283]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.982659][  T283]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.982663][  T283]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.982669][  T283]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.982674][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982676][  T283]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.982681][  T283]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.982687][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.982689][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.982693][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.982695][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.982697][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.982699][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.982703][  T283]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.982705][  T283]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.982708][  T283]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.982709][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.982714][  T283]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.982716][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.982719][  T283]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.982722][  T283]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.982725][  T283]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.982731][  T283]  ? 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))
[   12.982733][  T283]  ? 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))
[   12.982738][  T283]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.982742][  T283]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.982744][  T283]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.982748][  T283]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.982752][  T283]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.982756][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.982757][  T283]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.982763][  T283]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.982766][  T283]  ____sys_sendmsg (net/socket.c:2713)
[   12.982768][  T283]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.982770][  T283]  ? sock_write_iter (net/socket.c:1269)
[   12.982772][  T283]  ? move_addr_to_kernel (net/socket.c:258)
[   12.982779][  T283]  ___sys_sendmsg (net/socket.c:2767)
[   12.982782][  T283]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.982797][  T283]  __sys_sendmsg (net/socket.c:2799)
[   12.982800][  T283]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.982806][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.982809][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.982812][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.982815][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.982817][  T283] RIP: 0033:0x7f4149d1e54e
[   12.982821][  T283] 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
[   12.982823][  T283] RSP: 002b:00007fff87a8c820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.982825][  T283] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4149d1e54e
[   12.982827][  T283] RDX: 0000000000000000 RSI: 00007fff87a8c8d0 RDI: 0000000000000005
[   12.982828][  T283] RBP: 00007fff87a8c830 R08: 0000000000000000 R09: 0000000000000000
[   12.982829][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b299
[   12.982829][  T283] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff87a8cf90
| [   15.514211][  T346] softirqs last disabled at (15026): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.514213][  T346] Preemption disabled at:
| [   15.514214][  T346] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.514222][  T346] Tainted: [W]=WARN
[   15.514223][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.514225][  T346] Call Trace:
[   15.514226][  T346]  <TASK>
[   15.514228][  T346]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.514234][  T346]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.514236][  T346]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.514240][  T346]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.514244][  T346]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.514248][  T346]  __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))
[   15.514250][  T346]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.514257][  T346]  ? 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)
[   15.514259][  T346]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.514264][  T346]  put_chars (drivers/char/virtio_console.c:1176)
[   15.514266][  T346]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.514269][  T346]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.514274][  T346]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.514282][  T346]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.514285][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514287][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.514291][  T346]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.514296][  T346]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.514297][  T346]  ? 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))
[   15.514301][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514302][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.514306][  T346]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.514311][  T346]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.514312][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.514318][  T346]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.514321][  T346]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.514322][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514324][  T346]  ? 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)
[   15.514328][  T346]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.514330][  T346]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.514333][  T346]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.514336][  T346]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.514337][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.514339][  T346]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.514342][  T346]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.514344][  T346]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.514345][  T346]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   15.514348][  T346]  ? ____sys_sendmsg (net/socket.c:2713)
[   15.514349][  T346]  ? ___sys_sendmsg (net/socket.c:2767)
[   15.514353][  T346]  _printk (kernel/printk/printk.c:2504)
[   15.514357][  T346]  ? snapshot_read.cold (user.c:?)
[   15.514361][  T346]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   15.514365][  T346]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   15.514369][  T346]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   15.514372][  T346]  ? netdev_notice (net/core/dev.c:13194)
[   15.514376][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514378][  T346]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   15.514380][  T346]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   15.514382][  T346]  ? 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)
[   15.514385][  T346]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   15.514389][  T346]  dev_set_allmulti (net/core/dev_api.c:315)
[   15.514393][  T346]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   15.514399][  T346]  br_del_if (net/bridge/br_if.c:732)
[   15.514401][  T346]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.514405][  T346]  do_set_master (net/core/rtnetlink.c:3055)
[   15.514409][  T346]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.514412][  T346]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.514416][  T346]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.514417][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.514420][  T346]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.514423][  T346]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.514425][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.514427][  T346]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.514429][  T346]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.514432][  T346]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.514433][  T346]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.514434][  T346]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.514436][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.514438][  T346]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   15.514440][  T346]  ? ___sys_sendmsg (net/socket.c:2758)
[   15.514444][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.514446][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.514448][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514450][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.514452][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514453][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514454][  T346]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.514457][  T346]  ? __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)
[   15.514459][  T346]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.514461][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.514464][  T346]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.514466][  T346]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.514472][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514475][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.514480][  T346]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.514485][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.514487][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.514491][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.514493][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.514496][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.514497][  T346]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.514501][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.514503][  T346]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.514506][  T346]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.514508][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.514512][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.514514][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.514518][  T346]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.514519][  T346]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.514522][  T346]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.514529][  T346]  ? 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))
[   15.514531][  T346]  ? 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))
[   15.514535][  T346]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.514539][  T346]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.514542][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.514546][  T346]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.514550][  T346]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.514554][  T346]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.514555][  T346]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   15.514561][  T346]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   15.514564][  T346]  ____sys_sendmsg (net/socket.c:2713)
[   15.514566][  T346]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.514568][  T346]  ? sock_write_iter (net/socket.c:1269)
[   15.514570][  T346]  ? move_addr_to_kernel (net/socket.c:258)
[   15.514577][  T346]  ___sys_sendmsg (net/socket.c:2767)
[   15.514580][  T346]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.514596][  T346]  __sys_sendmsg (net/socket.c:2799)
[   15.514598][  T346]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.514605][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.514608][  T346]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.514611][  T346]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.514614][  T346]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.514616][  T346] RIP: 0033:0x7f628e33254e
[   15.514620][  T346] 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
[   15.514622][  T346] RSP: 002b:00007ffe0ad2de70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.514624][  T346] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f628e33254e
[   15.514626][  T346] RDX: 0000000000000000 RSI: 00007ffe0ad2df20 RDI: 0000000000000005
[   15.514627][  T346] RBP: 00007ffe0ad2de80 R08: 0000000000000000 R09: 0000000000000000
[   15.514627][  T346] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b29b
[   15.514628][  T346] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0ad2e5e0
| [   18.315579][  T431] softirqs last disabled at (17474): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   18.315582][  T431] Preemption disabled at:
| [   18.315582][  T431] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.315591][  T431] Tainted: [W]=WARN
[   18.315592][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.315594][  T431] Call Trace:
[   18.315595][  T431]  <TASK>
[   18.315597][  T431]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.315603][  T431]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.315605][  T431]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.315610][  T431]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.315614][  T431]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.315619][  T431]  __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))
[   18.315620][  T431]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.315627][  T431]  ? 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)
[   18.315630][  T431]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.315634][  T431]  put_chars (drivers/char/virtio_console.c:1176)
[   18.315636][  T431]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.315639][  T431]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.315645][  T431]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.315653][  T431]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.315656][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315659][  T431]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.315663][  T431]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.315667][  T431]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.315669][  T431]  ? 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))
[   18.315672][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315674][  T431]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.315678][  T431]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.315689][  T431]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.315691][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.315696][  T431]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.315699][  T431]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.315701][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315703][  T431]  ? 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)
[   18.315706][  T431]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.315708][  T431]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.315711][  T431]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.315714][  T431]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.315716][  T431]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   18.315717][  T431]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   18.315720][  T431]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.315722][  T431]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   18.315724][  T431]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   18.315726][  T431]  ? ____sys_sendmsg (net/socket.c:2713)
[   18.315728][  T431]  ? ___sys_sendmsg (net/socket.c:2767)
[   18.315731][  T431]  _printk (kernel/printk/printk.c:2504)
[   18.315735][  T431]  ? snapshot_read.cold (user.c:?)
[   18.315740][  T431]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   18.315744][  T431]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   18.315747][  T431]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   18.315751][  T431]  ? netdev_notice (net/core/dev.c:13194)
[   18.315755][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315757][  T431]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   18.315759][  T431]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   18.315761][  T431]  ? 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)
[   18.315764][  T431]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   18.315768][  T431]  dev_set_allmulti (net/core/dev_api.c:315)
[   18.315772][  T431]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   18.315778][  T431]  br_del_if (net/bridge/br_if.c:732)
[   18.315780][  T431]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   18.315784][  T431]  do_set_master (net/core/rtnetlink.c:3055)
[   18.315788][  T431]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   18.315792][  T431]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   18.315795][  T431]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   18.315797][  T431]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   18.315799][  T431]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.315803][  T431]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.315805][  T431]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.315807][  T431]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.315809][  T431]  ? kasan_save_stack (mm/kasan/common.c:58)
[   18.315812][  T431]  ? kasan_save_stack (mm/kasan/common.c:57)
[   18.315813][  T431]  ? kasan_save_track (mm/kasan/common.c:78)
[   18.315814][  T431]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   18.315817][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.315819][  T431]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   18.315821][  T431]  ? ___sys_sendmsg (net/socket.c:2758)
[   18.315824][  T431]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.315826][  T431]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.315829][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315831][  T431]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.315832][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315833][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315835][  T431]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   18.315837][  T431]  ? __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)
[   18.315840][  T431]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   18.315842][  T431]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.315848][  T431]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   18.315849][  T431]  ? nla_get_range_signed (lib/nlattr.c:270)
[   18.315854][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315856][  T431]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   18.315862][  T431]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   18.315867][  T431]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.315869][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.315874][  T431]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.315876][  T431]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.315878][  T431]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.315880][  T431]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.315884][  T431]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.315886][  T431]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   18.315889][  T431]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.315890][  T431]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.315895][  T431]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.315897][  T431]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.315901][  T431]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   18.315902][  T431]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.315905][  T431]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.315912][  T431]  ? 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))
[   18.315914][  T431]  ? 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))
[   18.315919][  T431]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.315923][  T431]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.315925][  T431]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.315929][  T431]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   18.315933][  T431]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   18.315937][  T431]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.315939][  T431]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   18.315944][  T431]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   18.315947][  T431]  ____sys_sendmsg (net/socket.c:2713)
[   18.315949][  T431]  ? copy_msghdr_from_user (net/socket.c:2650)
[   18.315952][  T431]  ? sock_write_iter (net/socket.c:1269)
[   18.315953][  T431]  ? move_addr_to_kernel (net/socket.c:258)
[   18.315961][  T431]  ___sys_sendmsg (net/socket.c:2767)
[   18.315963][  T431]  ? copy_msghdr_from_user (net/socket.c:2619)
[   18.315979][  T431]  __sys_sendmsg (net/socket.c:2799)
[   18.315982][  T431]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   18.315988][  T431]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.315991][  T431]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.315994][  T431]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.315997][  T431]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.316000][  T431] RIP: 0033:0x7f83d709e54e
[   18.316004][  T431] 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
[   18.316006][  T431] RSP: 002b:00007fff27563960 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.316008][  T431] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f83d709e54e
[   18.316010][  T431] RDX: 0000000000000000 RSI: 00007fff27563a10 RDI: 0000000000000005
[   18.316011][  T431] RBP: 00007fff27563970 R08: 0000000000000000 R09: 0000000000000000
[   18.316011][  T431] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b29e
[   18.316012][  T431] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff275640d0
| [   21.050929][  T509] softirqs last disabled at (16688): 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))
| [   21.050932][  T509] Preemption disabled at:
| [   21.050933][  T509] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.050941][  T509] Tainted: [W]=WARN
[   21.050942][  T509] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.050944][  T509] Call Trace:
[   21.050945][  T509]  <TASK>
[   21.050947][  T509]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.050954][  T509]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.050955][  T509]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.050960][  T509]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.050964][  T509]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.050968][  T509]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.050970][  T509]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.050977][  T509]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.050979][  T509]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.050983][  T509]  put_chars (drivers/char/virtio_console.c:1176)
[   21.050986][  T509]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.050987][  T509]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   21.050991][  T509]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   21.050995][  T509]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.050999][  T509]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.051001][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051003][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051007][  T509]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.051009][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.051013][  T509]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.051017][  T509]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.051021][  T509]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.051023][  T509]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   21.051026][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.051029][  T509]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.051033][  T509]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.051037][  T509]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.051039][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051044][  T509]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.051047][  T509]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.051049][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.051051][  T509]  ? 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)
[   21.051054][  T509]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.051056][  T509]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.051059][  T509]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.051062][  T509]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.051064][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051068][  T509]  _printk (kernel/printk/printk.c:2504)
[   21.051072][  T509]  ? snapshot_read.cold (user.c:?)
[   21.051075][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.051077][  T509]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.051078][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.051079][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.051080][  T509]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   21.051084][  T509]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   21.051088][  T509]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   21.051091][  T509]  ? netdev_notice (net/core/dev.c:13194)
[   21.051094][  T509]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.051102][  T509]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   21.051106][  T509]  netif_set_promiscuity (net/core/dev.c:9699)
[   21.051110][  T509]  dev_set_promiscuity (net/core/dev_api.c:288)
[   21.051113][  T509]  macvlan_stop (drivers/net/macvlan.c:717)
[   21.051116][  T509]  __dev_close_many (net/core/dev.c:1798)
[   21.051120][  T509]  ? net_generic (./include/linux/rcupdate.h:882 ./include/net/netns/generic.h:48) vxlan
[   21.051128][  T509]  ? netif_open (net/core/dev.c:1755)
[   21.051131][  T509]  ? netif_close_many (net/core/dev.c:1824)
[   21.051135][  T509]  netif_close_many (net/core/dev.c:1824)
[   21.051139][  T509]  ? __dev_close_many (net/core/dev.c:1804)
[   21.051142][  T509]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   21.051146][  T509]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   21.051149][  T509]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.051153][  T509]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   21.051155][  T509]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   21.051158][  T509]  ? netdev_upper_dev_unlink (net/core/dev.c:9114)
[   21.051160][  T509]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   21.051165][  T509]  rtnl_dellink (net/core/rtnetlink.c:3652 net/core/rtnetlink.c:3694)
[   21.051167][  T509]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.051169][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051170][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051172][  T509]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   21.051200][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.051202][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.051205][  T509]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.051207][  T509]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.051209][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051214][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.051216][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.051218][  T509]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   21.051220][  T509]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.051223][  T509]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   21.051225][  T509]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.051229][  T509]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.051230][  T509]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.051235][  T509]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.051237][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.051240][  T509]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.051242][  T509]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.051245][  T509]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.051251][  T509]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.051254][  T509]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.051258][  T509]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.051262][  T509]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.051265][  T509]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.051269][  T509]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.051273][  T509]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.051277][  T509]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.051278][  T509]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.051284][  T509]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.051288][  T509]  ____sys_sendmsg (net/socket.c:2713)
[   21.051290][  T509]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.051292][  T509]  ? sock_write_iter (net/socket.c:1269)
[   21.051294][  T509]  ? move_addr_to_kernel (net/socket.c:258)
[   21.051302][  T509]  ___sys_sendmsg (net/socket.c:2767)
[   21.051305][  T509]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.051321][  T509]  __sys_sendmsg (net/socket.c:2799)
[   21.051324][  T509]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.051330][  T509]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.051333][  T509]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.051336][  T509]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.051339][  T509]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.051341][  T509] RIP: 0033:0x7f4d928a554e
[   21.051345][  T509] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.051347][  T509] RSP: 002b:00007fffa227e1f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.051349][  T509] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4d928a554e
[   21.051351][  T509] RDX: 0000000000000000 RSI: 00007fffa227e2a0 RDI: 0000000000000005
[   21.051352][  T509] RBP: 00007fffa227e200 R08: 0000000000000000 R09: 0000000000000000
[   21.051352][  T509] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b2a1
[   21.051353][  T509] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffa227e960
| [   23.864757][  T596] softirqs last disabled at (21938): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   23.864759][  T596] Preemption disabled at:
| [   23.864760][  T596] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.864769][  T596] Tainted: [W]=WARN
[   23.864770][  T596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.864772][  T596] Call Trace:
[   23.864773][  T596]  <TASK>
[   23.864775][  T596]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.864781][  T596]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.864783][  T596]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.864788][  T596]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.864792][  T596]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.864796][  T596]  __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))
[   23.864798][  T596]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.864805][  T596]  ? 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)
[   23.864808][  T596]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.864812][  T596]  put_chars (drivers/char/virtio_console.c:1176)
[   23.864814][  T596]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.864817][  T596]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.864822][  T596]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.864830][  T596]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.864833][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.864836][  T596]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.864839][  T596]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.864844][  T596]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.864847][  T596]  ? 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))
[   23.864850][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.864852][  T596]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.864856][  T596]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.864861][  T596]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.864862][  T596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.864868][  T596]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.864870][  T596]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.864872][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.864874][  T596]  ? 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)
[   23.864878][  T596]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.864879][  T596]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.864882][  T596]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.864885][  T596]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.864886][  T596]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.864888][  T596]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.864891][  T596]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.864893][  T596]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.864894][  T596]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.864897][  T596]  ? ____sys_sendmsg (net/socket.c:2713)
[   23.864898][  T596]  ? ___sys_sendmsg (net/socket.c:2767)
[   23.864902][  T596]  _printk (kernel/printk/printk.c:2504)
[   23.864906][  T596]  ? snapshot_read.cold (user.c:?)
[   23.864910][  T596]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   23.864914][  T596]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   23.864917][  T596]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   23.864920][  T596]  ? netdev_notice (net/core/dev.c:13194)
[   23.864924][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.864926][  T596]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   23.864929][  T596]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   23.864931][  T596]  ? 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)
[   23.864933][  T596]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   23.864937][  T596]  dev_set_allmulti (net/core/dev_api.c:315)
[   23.864941][  T596]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   23.864947][  T596]  br_del_if (net/bridge/br_if.c:732)
[   23.864949][  T596]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.864952][  T596]  do_set_master (net/core/rtnetlink.c:3055)
[   23.864956][  T596]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.864959][  T596]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.864962][  T596]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.864964][  T596]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.864966][  T596]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.864970][  T596]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.864972][  T596]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.864974][  T596]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.864976][  T596]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.864978][  T596]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.864979][  T596]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.864981][  T596]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.864983][  T596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.864985][  T596]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.864987][  T596]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.864990][  T596]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.864992][  T596]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.864995][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.864996][  T596]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.864998][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.864999][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.865001][  T596]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.865003][  T596]  ? __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)
[   23.865006][  T596]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.865007][  T596]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.865011][  T596]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.865012][  T596]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.865017][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.865019][  T596]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.865024][  T596]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.865029][  T596]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.865031][  T596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.865036][  T596]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.865038][  T596]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.865040][  T596]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.865043][  T596]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.865049][  T596]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.865052][  T596]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.865057][  T596]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.865059][  T596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.865064][  T596]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.865066][  T596]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.865069][  T596]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.865071][  T596]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.865074][  T596]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.865080][  T596]  ? 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))
[   23.865082][  T596]  ? 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))
[   23.865087][  T596]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.865091][  T596]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.865093][  T596]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.865097][  T596]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.865101][  T596]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.865105][  T596]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.865106][  T596]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.865112][  T596]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.865114][  T596]  ____sys_sendmsg (net/socket.c:2713)
[   23.865117][  T596]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.865119][  T596]  ? sock_write_iter (net/socket.c:1269)
[   23.865121][  T596]  ? move_addr_to_kernel (net/socket.c:258)
[   23.865128][  T596]  ___sys_sendmsg (net/socket.c:2767)
[   23.865131][  T596]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.865146][  T596]  __sys_sendmsg (net/socket.c:2799)
[   23.865149][  T596]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.865155][  T596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.865158][  T596]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.865161][  T596]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.865164][  T596]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.865166][  T596] RIP: 0033:0x7f865fabf54e
[   23.865170][  T596] 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
[   23.865172][  T596] RSP: 002b:00007ffd617d46c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.865174][  T596] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f865fabf54e
[   23.865176][  T596] RDX: 0000000000000000 RSI: 00007ffd617d4770 RDI: 0000000000000005
[   23.865177][  T596] RBP: 00007ffd617d46d0 R08: 0000000000000000 R09: 0000000000000000
[   23.865177][  T596] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b2a4


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