======================================
| [   12.083351][  T265] softirqs last disabled at (14418): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.083355][  T265] Preemption disabled at:
| [   12.083356][  T265] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.083368][  T265] Tainted: [W]=WARN
[   12.083370][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.083372][  T265] Call Trace:
[   12.083374][  T265]  <TASK>
[   12.083376][  T265]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.083384][  T265]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.083387][  T265]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.083394][  T265]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.083400][  T265]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.083408][  T265]  __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))
[   12.083411][  T265]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.083420][  T265]  ? 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)
[   12.083424][  T265]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.083429][  T265]  put_chars (drivers/char/virtio_console.c:1176)
[   12.083434][  T265]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.083442][  T265]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.083448][  T265]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.083452][  T265]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.083456][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083458][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083465][  T265]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.083469][  T265]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.083474][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.083480][  T265]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.083487][  T265]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.083493][  T265]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.083496][  T265]  ? 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))
[   12.083501][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.083505][  T265]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.083512][  T265]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.083520][  T265]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.083522][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083532][  T265]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.083537][  T265]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.083539][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.083543][  T265]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.083550][  T265]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.083552][  T265]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.083558][  T265]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.083565][  T265]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.083569][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.083571][  T265]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.083578][  T265]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.083584][  T265]  _printk (kernel/printk/printk.c:2504)
[   12.083589][  T265]  ? snapshot_read.cold (user.c:?)
[   12.083595][  T265]  ? br_multicast_flood (??:?) bridge
[   12.083616][  T265]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.083618][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.083620][  T265]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.083628][  T265] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.083647][  T265] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.083663][  T265] new_nbp (net/bridge/br_if.c:449) bridge
[   12.083680][  T265] br_add_if (net/bridge/br_if.c:592) bridge
[   12.083693][  T265]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.083698][  T265]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.083703][  T265]  ? __kernel_text_address (kernel/extable.c:79)
[   12.083710][  T265]  do_set_master (net/core/rtnetlink.c:3071)
[   12.083718][  T265]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.083724][  T265]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.083728][  T265]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.083730][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.083734][  T265]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.083739][  T265]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.083743][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.083746][  T265]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.083751][  T265]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.083759][  T265]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.083761][  T265]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.083766][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083769][  T265]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.083773][  T265]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.083781][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.083784][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.083789][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.083792][  T265]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.083795][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.083797][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.083801][  T265]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.083807][  T265]  ? __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)
[   12.083810][  T265]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.083813][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.083820][  T265]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.083822][  T265]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.083832][  T265]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.083842][  T265]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.083851][  T265]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.083854][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083861][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.083864][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.083868][  T265]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.083871][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.083878][  T265]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.083881][  T265]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.083887][  T265]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.083889][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083897][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.083900][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.083906][  T265]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.083909][  T265]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.083914][  T265]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.083926][  T265]  ? 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))
[   12.083928][  T265]  ? 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))
[   12.083936][  T265]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.083943][  T265]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.083947][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.083955][  T265]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.083961][  T265]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.083968][  T265]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.083977][  T265]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.083981][  T265]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.083984][  T265]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.083987][  T265]  ? move_addr_to_kernel (net/socket.c:258)
[   12.084001][  T265]  ___sys_sendmsg (net/socket.c:2767)
[   12.084006][  T265]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.084038][  T265]  __sys_sendmsg (net/socket.c:2799)
[   12.084042][  T265]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.084054][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.084061][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.084064][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.084069][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.084073][  T265] RIP: 0033:0x7fadda9ac54e
[   12.084078][  T265] 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
[   12.084081][  T265] RSP: 002b:00007ffc754a4ad0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.084085][  T265] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fadda9ac54e
[   12.084087][  T265] RDX: 0000000000000000 RSI: 00007ffc754a4b80 RDI: 0000000000000005
[   12.084089][  T265] RBP: 00007ffc754a4ae0 R08: 0000000000000000 R09: 0000000000000000
[   12.084090][  T265] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91adb2
[   12.084091][  T265] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc754a5240
| [   13.571451][  T313] softirqs last disabled at (26704): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.571453][  T313] Preemption disabled at:
| [   13.571454][  T313] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.571464][  T313] Tainted: [W]=WARN
[   13.571464][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.571466][  T313] Call Trace:
[   13.571468][  T313]  <TASK>
[   13.571470][  T313]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.571476][  T313]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.571478][  T313]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.571483][  T313]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.571487][  T313]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.571492][  T313]  __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))
[   13.571495][  T313]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.571500][  T313]  ? 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)
[   13.571503][  T313]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.571507][  T313]  put_chars (drivers/char/virtio_console.c:1176)
[   13.571509][  T313]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.571511][  T313]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.571514][  T313]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.571518][  T313]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.571521][  T313]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.571524][  T313]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.571527][  T313]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.571529][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571531][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571535][  T313]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.571537][  T313]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.571540][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571542][  T313]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.571547][  T313]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.571551][  T313]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.571552][  T313]  ? 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))
[   13.571556][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571558][  T313]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.571562][  T313]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.571567][  T313]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.571569][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571574][  T313]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.571577][  T313]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.571579][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571581][  T313]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.571585][  T313]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.571587][  T313]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.571590][  T313]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.571594][  T313]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.571597][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.571600][  T313]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.571603][  T313]  _printk (kernel/printk/printk.c:2504)
[   13.571607][  T313]  ? snapshot_read.cold (user.c:?)
[   13.571611][  T313]  ? br_multicast_flood (??:?) bridge
[   13.571624][  T313]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.571626][  T313]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.571627][  T313]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.571631][  T313] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.571642][  T313] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.571650][  T313] new_nbp (net/bridge/br_if.c:449) bridge
[   13.571660][  T313] br_add_if (net/bridge/br_if.c:592) bridge
[   13.571667][  T313]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.571672][  T313]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.571674][  T313]  ? __kernel_text_address (kernel/extable.c:79)
[   13.571678][  T313]  do_set_master (net/core/rtnetlink.c:3071)
[   13.571683][  T313]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.571686][  T313]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.571690][  T313]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.571691][  T313]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.571693][  T313]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.571697][  T313]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.571699][  T313]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.571701][  T313]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.571704][  T313]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.571707][  T313]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.571708][  T313]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.571711][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571713][  T313]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   13.571716][  T313]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.571721][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.571723][  T313]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.571725][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571728][  T313]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.571729][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571731][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571734][  T313]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.571738][  T313]  ? __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)
[   13.571741][  T313]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.571743][  T313]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.571746][  T313]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.571748][  T313]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.571753][  T313]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.571765][  T313]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.571770][  T313]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.571772][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571777][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.571778][  T313]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.571781][  T313]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.571783][  T313]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.571786][  T313]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.571789][  T313]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.571792][  T313]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.571793][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571797][  T313]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.571799][  T313]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.571803][  T313]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.571805][  T313]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.571808][  T313]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.571814][  T313]  ? 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))
[   13.571815][  T313]  ? 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))
[   13.571820][  T313]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.571823][  T313]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.571826][  T313]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.571830][  T313]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.571834][  T313]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.571838][  T313]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.571843][  T313]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.571846][  T313]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.571848][  T313]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.571850][  T313]  ? move_addr_to_kernel (net/socket.c:258)
[   13.571857][  T313]  ___sys_sendmsg (net/socket.c:2767)
[   13.571860][  T313]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.571876][  T313]  __sys_sendmsg (net/socket.c:2799)
[   13.571879][  T313]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.571885][  T313]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.571889][  T313]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.571892][  T313]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.571894][  T313]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.571897][  T313] RIP: 0033:0x7fa05296d54e
[   13.571901][  T313] 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
[   13.571903][  T313] RSP: 002b:00007fff58ffa500 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.571906][  T313] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa05296d54e
[   13.571907][  T313] RDX: 0000000000000000 RSI: 00007fff58ffa5b0 RDI: 0000000000000005
[   13.571908][  T313] RBP: 00007fff58ffa510 R08: 0000000000000000 R09: 0000000000000000
[   13.571909][  T313] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91adb4
[   13.571910][  T313] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff58ffac70
| [   14.582548][  T351] softirqs last disabled at (19126): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) bridge
| [   14.582556][  T351] Preemption disabled at:
| [   14.582556][  T351] 0x0
| [   14.582567][  T351] Tainted: [W]=WARN
[   14.582568][  T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.582569][  T351] Call Trace:
[   14.582571][  T351]  <TASK>
[   14.582572][  T351]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.582579][  T351]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.582584][  T351]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.582588][  T351]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.582594][  T351]  __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))
[   14.582596][  T351]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.582602][  T351]  ? 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)
[   14.582605][  T351]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.582608][  T351]  put_chars (drivers/char/virtio_console.c:1176)
[   14.582610][  T351]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.582612][  T351]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.582615][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.582620][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.582622][  T351]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.582626][  T351]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.582629][  T351]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.582630][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582632][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582636][  T351]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.582638][  T351]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.582641][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582644][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.582648][  T351]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.582652][  T351]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.582653][  T351]  ? 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))
[   14.582657][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582659][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.582663][  T351]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.582667][  T351]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.582669][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582674][  T351]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.582677][  T351]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.582679][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582681][  T351]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.582685][  T351]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.582687][  T351]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.582690][  T351]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.582694][  T351]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.582696][  T351]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   14.582700][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.582702][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.582706][  T351]  _printk (kernel/printk/printk.c:2504)
[   14.582710][  T351]  ? snapshot_read.cold (user.c:?)
[   14.582715][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.582719][  T351] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.582731][  T351] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.582739][  T351] br_stp_enable_port (net/bridge/br_stp_if.c:93) bridge
[   14.582746][  T351] br_device_event (net/bridge/br.c:120) bridge
[   14.582755][  T351]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   14.582766][  T351]  notifier_call_chain (kernel/notifier.c:85)
[   14.582772][  T351]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   14.582777][  T351]  ? netif_change_name (net/core/dev.c:1517)
[   14.582781][  T351]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   14.582783][  T351]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.582786][  T351]  ? __kernel_text_address (kernel/extable.c:79)
[   14.582787][  T351]  ? write_profile (profile.c:?)
[   14.582790][  T351]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   14.582795][  T351]  netif_change_flags (net/core/dev.c:9882)
[   14.582799][  T351]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   14.582802][  T351]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.582804][  T351]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.582806][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.582807][  T351]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.582811][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.582813][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.582815][  T351]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.582818][  T351]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.582821][  T351]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.582823][  T351]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.582825][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582827][  T351]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   14.582830][  T351]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.582835][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.582837][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.582839][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582842][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.582844][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582845][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582848][  T351]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.582852][  T351]  ? __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)
[   14.582854][  T351]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.582856][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.582860][  T351]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.582865][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.582870][  T351]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.582875][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.582877][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582882][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.582884][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.582886][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.582888][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.582891][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.582893][  T351]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.582897][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.582898][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582903][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.582904][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.582908][  T351]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.582910][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.582913][  T351]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.582919][  T351]  ? 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))
[   14.582920][  T351]  ? 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))
[   14.582925][  T351]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.582928][  T351]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.582931][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.582935][  T351]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.582939][  T351]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.582943][  T351]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.582948][  T351]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.582951][  T351]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.582953][  T351]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.582955][  T351]  ? move_addr_to_kernel (net/socket.c:258)
[   14.582962][  T351]  ___sys_sendmsg (net/socket.c:2767)
[   14.582965][  T351]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.582981][  T351]  __sys_sendmsg (net/socket.c:2799)
[   14.582984][  T351]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.582991][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.582994][  T351]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.582996][  T351]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.582999][  T351]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.583001][  T351] RIP: 0033:0x7fa52cbc754e
[   14.583004][  T351] 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
[   14.583006][  T351] RSP: 002b:00007ffd7daebba0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.583009][  T351] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa52cbc754e
[   14.583010][  T351] RDX: 0000000000000000 RSI: 00007ffd7daebc50 RDI: 0000000000000005
[   14.583011][  T351] RBP: 00007ffd7daebbb0 R08: 0000000000000000 R09: 0000000000000000
[   14.583012][  T351] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91adb5
[   14.583013][  T351] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd7daec310
| [   24.210218][   T69] softirqs last disabled at (30739): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [   24.210221][   T69] Preemption disabled at:
| [   24.210221][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.210234][   T69] Tainted: [W]=WARN
[   24.210235][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.210237][   T69] Workqueue: netns cleanup_net
[   24.210240][   T69] Call Trace:
[   24.210242][   T69]  <TASK>
[   24.210244][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.210249][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.210252][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.210256][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.210260][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.210265][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.210268][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.210274][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.210276][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.210279][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   24.210282][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.210286][   T69]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   24.210290][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.210293][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.210295][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.210300][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.210301][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   24.210304][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.210308][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.210312][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.210317][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.210318][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.210322][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.210324][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.210328][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.210333][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.210335][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.210340][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.210343][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.210345][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.210347][   T69]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.210351][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.210353][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.210356][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.210360][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.210362][   T69]  ? process_one_work (kernel/workqueue.c:3387)
[   24.210365][   T69]  ? kthread (kernel/kthread.c:436)
[   24.210367][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   24.210369][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   24.210374][   T69]  _printk (kernel/printk/printk.c:2504)
[   24.210378][   T69]  ? snapshot_read.cold (user.c:?)
[   24.210382][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   24.210386][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   24.210389][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   24.210392][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   24.210396][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.210398][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   24.210401][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   24.210403][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.210405][   T69]  ? 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)
[   24.210409][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   24.210413][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   24.210417][   T69] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   24.210434][   T69] br_dev_delete (net/bridge/br_if.c:387) bridge
[   24.210443][   T69] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   24.210452][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   24.210456][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   24.210460][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   24.210462][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.210465][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   24.210470][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   24.210473][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   24.210477][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.210479][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.210484][   T69]  process_one_work (kernel/workqueue.c:3387)
[   24.210490][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   24.210493][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.210501][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   24.210505][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   24.210508][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   24.210510][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   24.210513][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   24.210515][   T69]  kthread (kernel/kthread.c:436)
[   24.210517][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.210520][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   24.210523][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   24.210525][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   24.210529][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   24.210532][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   24.210535][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.246085][  T486] softirqs last disabled at (20020): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   25.246093][  T486] Preemption disabled at:
| [   25.246093][  T486] 0x0
| [   25.246104][  T486] Tainted: [W]=WARN
[   25.246105][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.246107][  T486] Call Trace:
[   25.246108][  T486]  <TASK>
[   25.246110][  T486]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.246116][  T486]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.246121][  T486]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.246126][  T486]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.246131][  T486]  __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))
[   25.246133][  T486]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.246139][  T486]  ? 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)
[   25.246142][  T486]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.246146][  T486]  put_chars (drivers/char/virtio_console.c:1176)
[   25.246148][  T486]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.246151][  T486]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.246156][  T486]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.246158][  T486]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.246162][  T486]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.246165][  T486]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   25.246167][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246168][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246172][  T486]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.246174][  T486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.246178][  T486]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.246182][  T486]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.246186][  T486]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.246187][  T486]  ? 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))
[   25.246191][  T486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.246193][  T486]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.246197][  T486]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.246201][  T486]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.246203][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246208][  T486]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.246211][  T486]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.246213][  T486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.246215][  T486]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.246219][  T486]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.246221][  T486]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.246224][  T486]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.246231][  T486]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.246234][  T486]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.246236][  T486]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.246240][  T486]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.246246][  T486]  _printk (kernel/printk/printk.c:2504)
[   25.246252][  T486]  ? snapshot_read.cold (user.c:?)
[   25.246267][  T486] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   25.246285][  T486] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   25.246297][  T486] br_device_event (net/bridge/br.c:111) bridge
[   25.246306][  T486]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   25.246311][  T486]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   25.246317][  T486]  notifier_call_chain (kernel/notifier.c:85)
[   25.246323][  T486]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   25.246328][  T486]  ? netif_change_name (net/core/dev.c:1517)
[   25.246332][  T486]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   25.246335][  T486]  ? __kernel_text_address (kernel/extable.c:79)
[   25.246337][  T486]  ? write_profile (profile.c:?)
[   25.246340][  T486]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   25.246345][  T486]  netif_change_flags (net/core/dev.c:9882)
[   25.246349][  T486]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   25.246352][  T486]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.246355][  T486]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.246356][  T486]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.246358][  T486]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.246361][  T486]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.246364][  T486]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.246366][  T486]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.246368][  T486]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.246371][  T486]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.246373][  T486]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.246376][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246378][  T486]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   25.246381][  T486]  ? ___sys_sendmsg (net/socket.c:2757)
[   25.246386][  T486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.246387][  T486]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.246390][  T486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.246393][  T486]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.246394][  T486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.246396][  T486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.246398][  T486]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.246402][  T486]  ? __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)
[   25.246404][  T486]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.246406][  T486]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.246409][  T486]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.246415][  T486]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.246420][  T486]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.246425][  T486]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.246427][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246432][  T486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.246434][  T486]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.246436][  T486]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.246438][  T486]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.246442][  T486]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.246444][  T486]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.246447][  T486]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.246448][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246453][  T486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.246455][  T486]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.246458][  T486]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.246460][  T486]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.246463][  T486]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.246469][  T486]  ? 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))
[   25.246471][  T486]  ? 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))
[   25.246475][  T486]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.246479][  T486]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.246481][  T486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.246486][  T486]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.246489][  T486]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.246493][  T486]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   25.246499][  T486]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   25.246501][  T486]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.246504][  T486]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   25.246505][  T486]  ? move_addr_to_kernel (net/socket.c:258)
[   25.246513][  T486]  ___sys_sendmsg (net/socket.c:2767)
[   25.246516][  T486]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.246532][  T486]  __sys_sendmsg (net/socket.c:2799)
[   25.246535][  T486]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.246541][  T486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.246545][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.246547][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.246550][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.246552][  T486] RIP: 0033:0x7f015b0d154e
[   25.246555][  T486] 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
[   25.246557][  T486] RSP: 002b:00007ffdea8fd2f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.246560][  T486] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f015b0d154e
[   25.246561][  T486] RDX: 0000000000000000 RSI: 00007ffdea8fd3a0 RDI: 0000000000000005
[   25.246562][  T486] RBP: 00007ffdea8fd300 R08: 0000000000000000 R09: 0000000000000000
[   25.246563][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91adbf


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars