======================================
| [   11.034458][  T236] softirqs last disabled at (28597): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.034460][  T236] Preemption disabled at:
| [   11.034461][  T236] 0x0
| [   11.034472][  T236] Tainted: [W]=WARN
[   11.034473][  T236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.034474][  T236] Call Trace:
[   11.034475][  T236]  <TASK>
[   11.034477][  T236]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.034484][  T236]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.034488][  T236]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.034492][  T236]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.034496][  T236]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.034503][  T236]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.034510][  T236]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.034513][  T236]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.034517][  T236]  put_chars (drivers/char/virtio_console.c:1176)
[   11.034519][  T236]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.034521][  T236]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.034524][  T236]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.034530][  T236]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.034537][  T236]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.034540][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.034542][  T236]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.034546][  T236]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.034550][  T236]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.034552][  T236]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.034555][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.034557][  T236]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.034561][  T236]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.034565][  T236]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.034567][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.034572][  T236]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.034575][  T236]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.034577][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.034578][  T236]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.034582][  T236]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.034584][  T236]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.034587][  T236]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.034590][  T236]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.034593][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.034596][  T236]  _printk (kernel/printk/printk.c:2504)
[   11.034600][  T236]  ? snapshot_read.cold (user.c:?)
[   11.034603][  T236]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.034606][  T236]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.034610][  T236]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.034612][  T236]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.034616][  T236]  ? exit_notify (kernel/exit.c:780)
[   11.034618][  T236]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.034620][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.034624][  T236]  do_group_exit (kernel/exit.c:1151)
[   11.034627][  T236]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.034628][  T236]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.034631][  T236]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.034635][  T236]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.034638][  T236]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.034640][  T236] RIP: 0033:0x7fc9fa5971b8
[   11.034642][  T236] Code: Unable to access opcode bytes at 0x7fc9fa59718e.

Code starting with the faulting instruction
===========================================
[   11.034643][  T236] RSP: 002b:00007fffb45d5db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.034646][  T236] RAX: ffffffffffffffda RBX: 00007fc9fa6c7f88 RCX: 00007fc9fa5971b8
[   11.034647][  T236] RDX: 00007fc9fa2e1fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.034648][  T236] RBP: 00007fffb45d5e10 R08: 0000000000000000 R09: 0000000000008010
[   11.034649][  T236] R10: 00007fffb45d5bd0 R11: 0000000000000246 R12: 0000000000000001
[   11.034650][  T236] R13: 0000000000000000 R14: 00007fc9fa6c6680 R15: 00007fc9fa6c7fa0
| [   12.180834][  T279] softirqs last disabled at (22632): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.180837][  T279] Preemption disabled at:
| [   12.180838][  T279] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.180846][  T279] Tainted: [W]=WARN
[   12.180847][  T279] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.180849][  T279] Call Trace:
[   12.180850][  T279]  <TASK>
[   12.180852][  T279]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.180857][  T279]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.180859][  T279]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.180863][  T279]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.180867][  T279]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.180871][  T279]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.180873][  T279]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.180879][  T279]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.180882][  T279]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.180886][  T279]  put_chars (drivers/char/virtio_console.c:1176)
[   12.180888][  T279]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.180894][  T279]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.180902][  T279]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.180905][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.180909][  T279]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.180913][  T279]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.180915][  T279]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.180918][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180920][  T279]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.180924][  T279]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.180928][  T279]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.180930][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.180935][  T279]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.180938][  T279]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.180940][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.180941][  T279]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.180945][  T279]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.180946][  T279]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.180949][  T279]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.180952][  T279]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.180954][  T279]  ? save_trace (kernel/locking/lockdep.c:589)
[   12.180958][  T279]  _printk (kernel/printk/printk.c:2504)
[   12.180961][  T279]  ? snapshot_read.cold (user.c:?)
[   12.180965][  T279]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.180967][  T279]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.180971][  T279]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.180973][  T279]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.180976][  T279]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.180978][  T279]  ? netdev_notice (net/core/dev.c:13194)
[   12.180981][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.180984][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.180986][  T279]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.180990][  T279]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.180992][  T279]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.180994][  T279]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.180996][  T279]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.181000][  T279]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.181004][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.181005][  T279]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.181011][  T279]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.181014][  T279]  ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369)
[   12.181017][  T279]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.181018][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.181020][  T279]  ? trace_sched_exit_tp (./include/trace/events/sched.h:886 (discriminator 22))
[   12.181023][  T279]  ? __schedule (kernel/sched/core.c:7277)
[   12.181029][  T279]  ? io_schedule_timeout (kernel/sched/core.c:8159 (discriminator 1))
[   12.181036][  T279]  ? preempt_schedule_common (kernel/sched/core.c:7449)
[   12.181038][  T279]  ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
[   12.181041][  T279]  ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
[   12.181043][  T279]  ? trace_contention_end (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/lock.h:121)
[   12.181046][  T279]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 5) kernel/locking/mutex.c:821 (discriminator 5))
[   12.181048][  T279]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.181052][  T279]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.181053][  T279]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.181060][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.181063][  T279]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.181068][  T279]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.181073][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.181075][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.181079][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.181081][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.181083][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.181084][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.181088][  T279]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.181090][  T279]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.181093][  T279]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.181094][  T279]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.181099][  T279]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.181101][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.181104][  T279]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.181107][  T279]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.181110][  T279]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.181116][  T279]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.181118][  T279]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.181122][  T279]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.181126][  T279]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.181128][  T279]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.181132][  T279]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.181136][  T279]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.181140][  T279]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.181142][  T279]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.181147][  T279]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.181151][  T279]  ____sys_sendmsg (net/socket.c:2713)
[   12.181153][  T279]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.181156][  T279]  ? sock_write_iter (net/socket.c:1269)
[   12.181157][  T279]  ? move_addr_to_kernel (net/socket.c:258)
[   12.181164][  T279]  ___sys_sendmsg (net/socket.c:2767)
[   12.181167][  T279]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.181182][  T279]  __sys_sendmsg (net/socket.c:2799)
[   12.181185][  T279]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.181191][  T279]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.181194][  T279]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.181197][  T279]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.181200][  T279]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.181202][  T279] RIP: 0033:0x7f0bc40ea54e
[   12.181206][  T279] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.181207][  T279] RSP: 002b:00007ffd4649cbc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.181210][  T279] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0bc40ea54e
[   12.181211][  T279] RDX: 0000000000000000 RSI: 00007ffd4649cc70 RDI: 0000000000000005
[   12.181212][  T279] RBP: 00007ffd4649cbd0 R08: 0000000000000000 R09: 0000000000000000
[   12.181213][  T279] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9181f3
[   12.181214][  T279] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4649d340
| [   24.127837][  T549] softirqs last disabled at (17976): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.127841][  T549] Preemption disabled at:
| [   24.127842][  T549] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.127853][  T549] Tainted: [W]=WARN
[   24.127854][  T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.127856][  T549] Call Trace:
[   24.127858][  T549]  <TASK>
[   24.127861][  T549]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.127868][  T549]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.127871][  T549]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.127877][  T549]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.127883][  T549]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.127889][  T549]  __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))
[   24.127892][  T549]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.127902][  T549]  ? 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)
[   24.127905][  T549]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.127911][  T549]  put_chars (drivers/char/virtio_console.c:1176)
[   24.127919][  T549]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.127921][  T549]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.127927][  T549]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.127936][  T549]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.127948][  T549]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.127952][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.127955][  T549]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.127962][  T549]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.127969][  T549]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.127971][  T549]  ? 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))
[   24.127976][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.127980][  T549]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.127986][  T549]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.127993][  T549]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.127996][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.128005][  T549]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.128010][  T549]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.128012][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.128015][  T549]  ? 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)
[   24.128022][  T549]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.128024][  T549]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.128029][  T549]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.128034][  T549]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.128037][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.128040][  T549]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.128046][  T549]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.128052][  T549]  _printk (kernel/printk/printk.c:2504)
[   24.128057][  T549]  ? snapshot_read.cold (user.c:?)
[   24.128063][  T549]  ? br_multicast_flood (??:?)
[   24.128067][  T549]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.128069][  T549]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.128071][  T549]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.128079][  T549]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   24.128085][  T549]  br_init_port (net/bridge/br_stp_if.c:39)
[   24.128089][  T549]  new_nbp (net/bridge/br_if.c:449)
[   24.128096][  T549]  br_add_if (net/bridge/br_if.c:592)
[   24.128099][  T549]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.128104][  T549]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.128113][  T549]  do_set_master (net/core/rtnetlink.c:3071)
[   24.128120][  T549]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.128126][  T549]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.128130][  T549]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.128132][  T549]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.128136][  T549]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.128141][  T549]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.128144][  T549]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.128147][  T549]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.128151][  T549]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.128154][  T549]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.128156][  T549]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.128158][  T549]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.128162][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.128165][  T549]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   24.128169][  T549]  ? ___sys_sendmsg (net/socket.c:2758)
[   24.128175][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.128178][  T549]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.128183][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.128186][  T549]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.128188][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.128190][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.128193][  T549]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.128197][  T549]  ? __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)
[   24.128199][  T549]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.128203][  T549]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.128209][  T549]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.128211][  T549]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.128218][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.128222][  T549]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.128231][  T549]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.128241][  T549]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.128244][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.128252][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.128255][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.128258][  T549]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.128261][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.128268][  T549]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.128271][  T549]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.128276][  T549]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.128279][  T549]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.128286][  T549]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.128289][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.128295][  T549]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.128300][  T549]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.128305][  T549]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.128316][  T549]  ? 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))
[   24.128319][  T549]  ? 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))
[   24.128327][  T549]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.128334][  T549]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.128338][  T549]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.128346][  T549]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.128352][  T549]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.128359][  T549]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.128362][  T549]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.128370][  T549]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.128375][  T549]  ____sys_sendmsg (net/socket.c:2713)
[   24.128378][  T549]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.128382][  T549]  ? sock_write_iter (net/socket.c:1269)
[   24.128384][  T549]  ? move_addr_to_kernel (net/socket.c:258)
[   24.128398][  T549]  ___sys_sendmsg (net/socket.c:2767)
[   24.128402][  T549]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.128430][  T549]  __sys_sendmsg (net/socket.c:2799)
[   24.128434][  T549]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.128445][  T549]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.128451][  T549]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.128455][  T549]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.128459][  T549]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.128462][  T549] RIP: 0033:0x7fad1d1c854e
[   24.128467][  T549] 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
[   24.128469][  T549] RSP: 002b:00007ffc335e72e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.128473][  T549] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fad1d1c854e
[   24.128475][  T549] RDX: 0000000000000000 RSI: 00007ffc335e7390 RDI: 0000000000000005
[   24.128476][  T549] RBP: 00007ffc335e72f0 R08: 0000000000000000 R09: 0000000000000000
[   24.128478][  T549] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9181ff
[   24.128479][  T549] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc335e7a60
| [   25.764675][  T640] softirqs last disabled at (15420): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   25.764678][  T640] Preemption disabled at:
| [   25.764678][  T640] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.764687][  T640] Tainted: [W]=WARN
[   25.764688][  T640] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.764689][  T640] Call Trace:
[   25.764691][  T640]  <TASK>
[   25.764692][  T640]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.764698][  T640]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.764700][  T640]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.764704][  T640]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.764708][  T640]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.764712][  T640]  __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))
[   25.764714][  T640]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.764721][  T640]  ? 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)
[   25.764724][  T640]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.764727][  T640]  put_chars (drivers/char/virtio_console.c:1176)
[   25.764729][  T640]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.764731][  T640]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.764734][  T640]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.764740][  T640]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.764747][  T640]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.764750][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764752][  T640]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.764756][  T640]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.764759][  T640]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.764761][  T640]  ? 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))
[   25.764764][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764766][  T640]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.764770][  T640]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.764774][  T640]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.764776][  T640]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.764781][  T640]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.764784][  T640]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.764786][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764787][  T640]  ? 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)
[   25.764791][  T640]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.764792][  T640]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.764795][  T640]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.764798][  T640]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.764800][  T640]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.764803][  T640]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.764806][  T640]  _printk (kernel/printk/printk.c:2504)
[   25.764810][  T640]  ? snapshot_read.cold (user.c:?)
[   25.764813][  T640]  ? br_multicast_flood (??:?)
[   25.764817][  T640]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.764818][  T640]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.764819][  T640]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.764824][  T640]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   25.764828][  T640]  br_init_port (net/bridge/br_stp_if.c:39)
[   25.764830][  T640]  new_nbp (net/bridge/br_if.c:449)
[   25.764834][  T640]  br_add_if (net/bridge/br_if.c:592)
[   25.764836][  T640]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   25.764840][  T640]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   25.764845][  T640]  do_set_master (net/core/rtnetlink.c:3071)
[   25.764849][  T640]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.764852][  T640]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.764856][  T640]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.764857][  T640]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.764859][  T640]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.764863][  T640]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.764865][  T640]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.764866][  T640]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.764869][  T640]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.764871][  T640]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.764872][  T640]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.764874][  T640]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.764876][  T640]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.764878][  T640]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   25.764880][  T640]  ? ___sys_sendmsg (net/socket.c:2758)
[   25.764884][  T640]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.764886][  T640]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.764889][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764890][  T640]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.764892][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764893][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764895][  T640]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.764897][  T640]  ? __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)
[   25.764900][  T640]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.764901][  T640]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.764905][  T640]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.764906][  T640]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.764911][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.764913][  T640]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.764918][  T640]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.764923][  T640]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.764925][  T640]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.764930][  T640]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.764932][  T640]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.764934][  T640]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.764935][  T640]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.764939][  T640]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.764941][  T640]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.764944][  T640]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.764945][  T640]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.764950][  T640]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.764952][  T640]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.764955][  T640]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.764958][  T640]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.764961][  T640]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.764967][  T640]  ? 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))
[   25.764969][  T640]  ? 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))
[   25.764973][  T640]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.764977][  T640]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.764980][  T640]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.764984][  T640]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.764988][  T640]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.764991][  T640]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.764993][  T640]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.764998][  T640]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.765001][  T640]  ____sys_sendmsg (net/socket.c:2713)
[   25.765003][  T640]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.765005][  T640]  ? sock_write_iter (net/socket.c:1269)
[   25.765007][  T640]  ? move_addr_to_kernel (net/socket.c:258)
[   25.765014][  T640]  ___sys_sendmsg (net/socket.c:2767)
[   25.765017][  T640]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.765032][  T640]  __sys_sendmsg (net/socket.c:2799)
[   25.765035][  T640]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.765041][  T640]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.765044][  T640]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.765047][  T640]  ? irq_exit_rcu (kernel/softirq.c:786)
[   25.765051][  T640]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.765054][  T640] RIP: 0033:0x7f502e3c854e
[   25.765057][  T640] 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
[   25.765059][  T640] RSP: 002b:00007ffde1291460 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.765062][  T640] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f502e3c854e
[   25.765063][  T640] RDX: 0000000000000000 RSI: 00007ffde1291510 RDI: 0000000000000005
[   25.765064][  T640] RBP: 00007ffde1291470 R08: 0000000000000000 R09: 0000000000000000
[   25.765065][  T640] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918201
[   25.765065][  T640] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde1291be0
| [   27.410618][  T714] softirqs last disabled at (16782): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   27.410621][  T714] Preemption disabled at:
| [   27.410621][  T714] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.410630][  T714] Tainted: [W]=WARN
[   27.410630][  T714] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.410632][  T714] Call Trace:
[   27.410634][  T714]  <TASK>
[   27.410635][  T714]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.410642][  T714]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.410643][  T714]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.410648][  T714]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.410652][  T714]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.410657][  T714]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.410659][  T714]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.410665][  T714]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.410668][  T714]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.410672][  T714]  put_chars (drivers/char/virtio_console.c:1176)
[   27.410675][  T714]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.410676][  T714]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.410679][  T714]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.410685][  T714]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.410693][  T714]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.410696][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410698][  T714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.410702][  T714]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.410706][  T714]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.410708][  T714]  ? 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))
[   27.410711][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410713][  T714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.410717][  T714]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.410721][  T714]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.410723][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.410729][  T714]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.410732][  T714]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.410733][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410735][  T714]  ? 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)
[   27.410739][  T714]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.410741][  T714]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.410744][  T714]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.410747][  T714]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.410749][  T714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.410752][  T714]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.410755][  T714]  _printk (kernel/printk/printk.c:2504)
[   27.410759][  T714]  ? snapshot_read.cold (user.c:?)
[   27.410763][  T714]  ? br_multicast_flood (??:?)
[   27.410766][  T714]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   27.410768][  T714]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.410769][  T714]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.410774][  T714]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   27.410778][  T714]  br_init_port (net/bridge/br_stp_if.c:39)
[   27.410780][  T714]  new_nbp (net/bridge/br_if.c:449)
[   27.410784][  T714]  br_add_if (net/bridge/br_if.c:592)
[   27.410787][  T714]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   27.410790][  T714]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   27.410796][  T714]  do_set_master (net/core/rtnetlink.c:3071)
[   27.410800][  T714]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   27.410803][  T714]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   27.410807][  T714]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   27.410808][  T714]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   27.410811][  T714]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   27.410814][  T714]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.410816][  T714]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.410818][  T714]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.410821][  T714]  ? kasan_save_stack (mm/kasan/common.c:58)
[   27.410823][  T714]  ? kasan_save_stack (mm/kasan/common.c:57)
[   27.410824][  T714]  ? kasan_save_track (mm/kasan/common.c:78)
[   27.410825][  T714]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.410828][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.410830][  T714]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   27.410832][  T714]  ? ___sys_sendmsg (net/socket.c:2758)
[   27.410836][  T714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.410838][  T714]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.410841][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410843][  T714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.410844][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410845][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410847][  T714]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   27.410849][  T714]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   27.410852][  T714]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   27.410854][  T714]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.410858][  T714]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   27.410859][  T714]  ? nla_get_range_signed (lib/nlattr.c:270)
[   27.410864][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.410866][  T714]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   27.410871][  T714]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.410877][  T714]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.410879][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.410884][  T714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.410886][  T714]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.410888][  T714]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.410890][  T714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.410894][  T714]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.410896][  T714]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.410899][  T714]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.410900][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.410905][  T714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.410907][  T714]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.410911][  T714]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.410914][  T714]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.410917][  T714]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   27.410924][  T714]  ? 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))
[   27.410926][  T714]  ? 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))
[   27.410930][  T714]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.410934][  T714]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   27.410937][  T714]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.410941][  T714]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.410945][  T714]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   27.410949][  T714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.410951][  T714]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   27.410957][  T714]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   27.410959][  T714]  ____sys_sendmsg (net/socket.c:2713)
[   27.410962][  T714]  ? copy_msghdr_from_user (net/socket.c:2650)
[   27.410964][  T714]  ? sock_write_iter (net/socket.c:1269)
[   27.410966][  T714]  ? move_addr_to_kernel (net/socket.c:258)
[   27.410974][  T714]  ___sys_sendmsg (net/socket.c:2767)
[   27.410976][  T714]  ? copy_msghdr_from_user (net/socket.c:2619)
[   27.410993][  T714]  __sys_sendmsg (net/socket.c:2799)
[   27.410996][  T714]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   27.411003][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.411006][  T714]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.411009][  T714]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.411012][  T714]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.411014][  T714] RIP: 0033:0x7f8d9062454e
[   27.411018][  T714] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   27.411020][  T714] RSP: 002b:00007ffdb57abd80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   27.411023][  T714] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8d9062454e
[   27.411024][  T714] RDX: 0000000000000000 RSI: 00007ffdb57abe30 RDI: 0000000000000005
[   27.411025][  T714] RBP: 00007ffdb57abd90 R08: 0000000000000000 R09: 0000000000000000
[   27.411026][  T714] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918202
[   27.411027][  T714] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb57ac500
| [   28.939780][  T798] softirqs last disabled at (16977): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   28.939784][  T798] Preemption disabled at:
| [   28.939785][  T798] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.939796][  T798] Tainted: [W]=WARN
[   28.939797][  T798] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.939800][  T798] Call Trace:
[   28.939802][  T798]  <TASK>
[   28.939804][  T798]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.939812][  T798]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.939814][  T798]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.939821][  T798]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.939826][  T798]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.939833][  T798]  __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))
[   28.939836][  T798]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.939845][  T798]  ? 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)
[   28.939849][  T798]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.939855][  T798]  put_chars (drivers/char/virtio_console.c:1176)
[   28.939859][  T798]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.939861][  T798]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.939866][  T798]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.939876][  T798]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.939888][  T798]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.939892][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.939895][  T798]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.939902][  T798]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.939909][  T798]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.939911][  T798]  ? 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))
[   28.939917][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.939920][  T798]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.939927][  T798]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.939934][  T798]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.939936][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.939946][  T798]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.939950][  T798]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.939953][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.939956][  T798]  ? 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)
[   28.939962][  T798]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.939965][  T798]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.939969][  T798]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.939975][  T798]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.939978][  T798]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.939982][  T798]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   28.939988][  T798]  _printk (kernel/printk/printk.c:2504)
[   28.939994][  T798]  ? snapshot_read.cold (user.c:?)
[   28.940000][  T798]  ? br_multicast_flood (??:?)
[   28.940004][  T798]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   28.940006][  T798]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.940008][  T798]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.940016][  T798]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   28.940023][  T798]  br_init_port (net/bridge/br_stp_if.c:39)
[   28.940026][  T798]  new_nbp (net/bridge/br_if.c:449)
[   28.940033][  T798]  br_add_if (net/bridge/br_if.c:592)
[   28.940036][  T798]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   28.940041][  T798]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   28.940050][  T798]  do_set_master (net/core/rtnetlink.c:3071)
[   28.940057][  T798]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   28.940063][  T798]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.940067][  T798]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.940069][  T798]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.940073][  T798]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.940078][  T798]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.940081][  T798]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.940084][  T798]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.940088][  T798]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.940091][  T798]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.940093][  T798]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.940095][  T798]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.940099][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.940102][  T798]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   28.940106][  T798]  ? ___sys_sendmsg (net/socket.c:2758)
[   28.940112][  T798]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.940115][  T798]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.940120][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.940123][  T798]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.940125][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.940127][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.940130][  T798]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.940133][  T798]  ? __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)
[   28.940137][  T798]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.940140][  T798]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.940146][  T798]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.940148][  T798]  ? nla_get_range_signed (lib/nlattr.c:270)
[   28.940156][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.940160][  T798]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.940169][  T798]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.940179][  T798]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.940182][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.940190][  T798]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.940193][  T798]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.940196][  T798]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.940199][  T798]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.940206][  T798]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.940209][  T798]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.940214][  T798]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.940216][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.940224][  T798]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.940227][  T798]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.940233][  T798]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.940237][  T798]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.940242][  T798]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.940254][  T798]  ? 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))
[   28.940257][  T798]  ? 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))
[   28.940265][  T798]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.940271][  T798]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.940276][  T798]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.940283][  T798]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.940290][  T798]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.940297][  T798]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.940299][  T798]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   28.940308][  T798]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   28.940312][  T798]  ____sys_sendmsg (net/socket.c:2713)
[   28.940316][  T798]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.940319][  T798]  ? sock_write_iter (net/socket.c:1269)
[   28.940322][  T798]  ? move_addr_to_kernel (net/socket.c:258)
[   28.940335][  T798]  ___sys_sendmsg (net/socket.c:2767)
[   28.940340][  T798]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.940375][  T798]  __sys_sendmsg (net/socket.c:2799)
[   28.940379][  T798]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.940390][  T798]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   28.940394][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.940400][  T798]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.940404][  T798]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.940408][  T798]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.940412][  T798] RIP: 0033:0x7fc8eccf054e
[   28.940417][  T798] 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
[   28.940419][  T798] RSP: 002b:00007ffe4505e750 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.940423][  T798] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc8eccf054e
[   28.940425][  T798] RDX: 0000000000000000 RSI: 00007ffe4505e800 RDI: 0000000000000005
[   28.940426][  T798] RBP: 00007ffe4505e760 R08: 0000000000000000 R09: 0000000000000000
[   28.940428][  T798] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918204
[   28.940429][  T798] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4505eed0
| [   30.502322][   T12] softirqs last disabled at (22238): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   30.502324][   T12] Preemption disabled at:
| [   30.502325][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   30.502333][   T12] Tainted: [W]=WARN
[   30.502334][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.502336][   T12] Workqueue: netns cleanup_net
[   30.502339][   T12] Call Trace:
[   30.502345][   T12]  <TASK>
[   30.502347][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.502353][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   30.502355][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.502360][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.502363][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   30.502368][   T12]  __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))
[   30.502370][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.502377][   T12]  ? 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)
[   30.502379][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.502383][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   30.502386][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.502389][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   30.502395][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.502399][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502404][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.502408][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502413][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.502418][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.502420][   T12]  ? 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))
[   30.502423][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502425][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.502429][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.502434][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.502436][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502441][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.502444][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.502446][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502448][   T12]  ? 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)
[   30.502452][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.502454][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.502456][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.502460][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.502461][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   30.502463][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   30.502465][   T12]  ? kthread (kernel/kthread.c:436)
[   30.502467][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   30.502470][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   30.502475][   T12]  _printk (kernel/printk/printk.c:2504)
[   30.502479][   T12]  ? snapshot_read.cold (user.c:?)
[   30.502484][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   30.502487][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   30.502491][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   30.502494][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   30.502499][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502501][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   30.502503][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   30.502505][   T12]  ? 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)
[   30.502508][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   30.502513][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   30.502516][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   30.502523][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   30.502526][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   30.502530][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   30.502534][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   30.502538][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   30.502540][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.502543][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   30.502548][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   30.502551][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   30.502555][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.502557][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502560][   T12]  process_one_work (kernel/workqueue.c:3387)
[   30.502567][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   30.502570][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.502584][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   30.502591][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   30.502593][   T12]  kthread (kernel/kthread.c:436)
[   30.502595][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   30.502599][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   30.502602][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   30.502605][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   30.502608][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   30.502612][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   30.502615][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.987184][  T934] softirqs last disabled at (15300): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   31.987186][  T934] Preemption disabled at:
| [   31.987187][  T934] vprintk_emit (kernel/printk/printk.c:2471)
| [   31.987196][  T934] Tainted: [W]=WARN
[   31.987197][  T934] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.987199][  T934] Call Trace:
[   31.987200][  T934]  <TASK>
[   31.987202][  T934]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.987208][  T934]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   31.987210][  T934]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.987214][  T934]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.987219][  T934]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.987223][  T934]  __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))
[   31.987225][  T934]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.987232][  T934]  ? 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)
[   31.987235][  T934]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.987238][  T934]  put_chars (drivers/char/virtio_console.c:1176)
[   31.987241][  T934]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.987248][  T934]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.987255][  T934]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.987259][  T934]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.987264][  T934]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.987268][  T934]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.987270][  T934]  ? 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))
[   31.987273][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987276][  T934]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.987280][  T934]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.987284][  T934]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.987286][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.987292][  T934]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.987295][  T934]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.987296][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987298][  T934]  ? 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)
[   31.987302][  T934]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.987304][  T934]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.987307][  T934]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.987310][  T934]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.987312][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.987314][  T934]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   31.987316][  T934]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   31.987320][  T934]  _printk (kernel/printk/printk.c:2504)
[   31.987324][  T934]  ? snapshot_read.cold (user.c:?)
[   31.987325][  T934]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.987328][  T934]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.987331][  T934]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.987333][  T934]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   31.987337][  T934]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   31.987340][  T934]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.987348][  T934]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   31.987351][  T934]  ? netdev_notice (net/core/dev.c:13194)
[   31.987354][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.987356][  T934]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.987359][  T934]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   31.987363][  T934]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.987365][  T934]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   31.987367][  T934]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   31.987372][  T934]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   31.987375][  T934]  ? __kernel_text_address (kernel/extable.c:79)
[   31.987378][  T934]  ? write_profile (profile.c:?)
[   31.987382][  T934]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   31.987388][  T934]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.987391][  T934]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   31.987394][  T934]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   31.987395][  T934]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   31.987397][  T934]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.987400][  T934]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.987402][  T934]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.987404][  T934]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.987407][  T934]  ? kasan_save_stack (mm/kasan/common.c:58)
[   31.987409][  T934]  ? kasan_save_stack (mm/kasan/common.c:57)
[   31.987410][  T934]  ? kasan_save_track (mm/kasan/common.c:78)
[   31.987411][  T934]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.987414][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.987417][  T934]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   31.987420][  T934]  ? ___sys_sendmsg (net/socket.c:2758)
[   31.987424][  T934]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.987426][  T934]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.987428][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987430][  T934]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.987432][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987433][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987435][  T934]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   31.987437][  T934]  ? __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)
[   31.987439][  T934]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   31.987441][  T934]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.987445][  T934]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   31.987446][  T934]  ? nla_get_range_signed (lib/nlattr.c:270)
[   31.987452][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987454][  T934]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   31.987459][  T934]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   31.987465][  T934]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.987467][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.987471][  T934]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.987473][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.987475][  T934]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.987477][  T934]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.987481][  T934]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.987483][  T934]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   31.987486][  T934]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.987488][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.987492][  T934]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.987494][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.987498][  T934]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.987501][  T934]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.987504][  T934]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.987510][  T934]  ? 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))
[   31.987513][  T934]  ? 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))
[   31.987517][  T934]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.987521][  T934]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.987524][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.987528][  T934]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.987532][  T934]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   31.987536][  T934]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.987538][  T934]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   31.987543][  T934]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   31.987546][  T934]  ____sys_sendmsg (net/socket.c:2713)
[   31.987548][  T934]  ? copy_msghdr_from_user (net/socket.c:2650)
[   31.987551][  T934]  ? sock_write_iter (net/socket.c:1269)
[   31.987552][  T934]  ? move_addr_to_kernel (net/socket.c:258)
[   31.987560][  T934]  ___sys_sendmsg (net/socket.c:2767)
[   31.987563][  T934]  ? copy_msghdr_from_user (net/socket.c:2619)
[   31.987584][  T934]  __sys_sendmsg (net/socket.c:2799)
[   31.987587][  T934]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   31.987594][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.987597][  T934]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   31.987600][  T934]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   31.987603][  T934]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.987605][  T934] RIP: 0033:0x7f1d7fdd354e
[   31.987609][  T934] 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
[   31.987611][  T934] RSP: 002b:00007ffcbb39e120 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.987613][  T934] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1d7fdd354e
[   31.987615][  T934] RDX: 0000000000000000 RSI: 00007ffcbb39e1d0 RDI: 0000000000000005
[   31.987615][  T934] RBP: 00007ffcbb39e130 R08: 0000000000000000 R09: 0000000000000000
[   31.987616][  T934] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918207
[   31.987617][  T934] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcbb39e8a0
| [   44.175284][ T1227] softirqs last disabled at (24412): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   44.175287][ T1227] Preemption disabled at:
| [   44.175287][ T1227] vprintk_emit (kernel/printk/printk.c:2471)
| [   44.175296][ T1227] Tainted: [W]=WARN
[   44.175297][ T1227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.175298][ T1227] Call Trace:
[   44.175300][ T1227]  <TASK>
[   44.175301][ T1227]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   44.175308][ T1227]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   44.175309][ T1227]  __might_resched.cold (kernel/sched/core.c:9234)
[   44.175314][ T1227]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   44.175318][ T1227]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   44.175322][ T1227]  __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))
[   44.175324][ T1227]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.175331][ T1227]  ? 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)
[   44.175334][ T1227]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.175338][ T1227]  put_chars (drivers/char/virtio_console.c:1176)
[   44.175340][ T1227]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   44.175342][ T1227]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.175348][ T1227]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.175354][ T1227]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   44.175362][ T1227]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   44.175364][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175366][ T1227]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.175370][ T1227]  console_emit_next_record (kernel/printk/printk.c:3183)
[   44.175374][ T1227]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   44.175376][ T1227]  ? 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))
[   44.175380][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175382][ T1227]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.175386][ T1227]  console_flush_one_record (kernel/printk/printk.c:3268)
[   44.175390][ T1227]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   44.175392][ T1227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.175397][ T1227]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   44.175400][ T1227]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   44.175402][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175404][ T1227]  ? 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)
[   44.175408][ T1227]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   44.175410][ T1227]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   44.175412][ T1227]  vprintk_emit (kernel/printk/printk.c:2479)
[   44.175416][ T1227]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   44.175419][ T1227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.175421][ T1227]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   44.175425][ T1227]  _printk (kernel/printk/printk.c:2504)
[   44.175429][ T1227]  ? snapshot_read.cold (user.c:?)
[   44.175433][ T1227]  ? br_multicast_flood (??:?)
[   44.175436][ T1227]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   44.175438][ T1227]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   44.175439][ T1227]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   44.175444][ T1227]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   44.175448][ T1227]  br_init_port (net/bridge/br_stp_if.c:39)
[   44.175450][ T1227]  new_nbp (net/bridge/br_if.c:449)
[   44.175454][ T1227]  br_add_if (net/bridge/br_if.c:592)
[   44.175457][ T1227]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   44.175461][ T1227]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   44.175466][ T1227]  do_set_master (net/core/rtnetlink.c:3071)
[   44.175470][ T1227]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   44.175474][ T1227]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   44.175477][ T1227]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   44.175479][ T1227]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.175481][ T1227]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.175485][ T1227]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.175487][ T1227]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.175489][ T1227]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.175491][ T1227]  ? kasan_save_stack (mm/kasan/common.c:58)
[   44.175494][ T1227]  ? kasan_save_stack (mm/kasan/common.c:57)
[   44.175495][ T1227]  ? kasan_save_track (mm/kasan/common.c:78)
[   44.175497][ T1227]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.175499][ T1227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.175501][ T1227]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   44.175504][ T1227]  ? ___sys_sendmsg (net/socket.c:2758)
[   44.175508][ T1227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.175510][ T1227]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.175512][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175514][ T1227]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.175516][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175517][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175519][ T1227]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   44.175521][ T1227]  ? __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)
[   44.175524][ T1227]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   44.175526][ T1227]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.175529][ T1227]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   44.175531][ T1227]  ? nla_get_range_signed (lib/nlattr.c:270)
[   44.175536][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175538][ T1227]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   44.175544][ T1227]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   44.175549][ T1227]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.175551][ T1227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.175556][ T1227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.175558][ T1227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.175560][ T1227]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.175562][ T1227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.175566][ T1227]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.175568][ T1227]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   44.175571][ T1227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.175572][ T1227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.175577][ T1227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.175579][ T1227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.175582][ T1227]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   44.175586][ T1227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.175589][ T1227]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.175595][ T1227]  ? 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))
[   44.175597][ T1227]  ? 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))
[   44.175602][ T1227]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.175606][ T1227]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.175609][ T1227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.175613][ T1227]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   44.175617][ T1227]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   44.175621][ T1227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.175623][ T1227]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   44.175633][ T1227]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   44.175636][ T1227]  ____sys_sendmsg (net/socket.c:2713)
[   44.175638][ T1227]  ? copy_msghdr_from_user (net/socket.c:2650)
[   44.175641][ T1227]  ? sock_write_iter (net/socket.c:1269)
[   44.175642][ T1227]  ? move_addr_to_kernel (net/socket.c:258)
[   44.175650][ T1227]  ___sys_sendmsg (net/socket.c:2767)
[   44.175653][ T1227]  ? copy_msghdr_from_user (net/socket.c:2619)
[   44.175669][ T1227]  __sys_sendmsg (net/socket.c:2799)
[   44.175672][ T1227]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   44.175679][ T1227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.175682][ T1227]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   44.175685][ T1227]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   44.175688][ T1227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.175690][ T1227] RIP: 0033:0x7f23aeec254e
[   44.175694][ T1227] 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
[   44.175696][ T1227] RSP: 002b:00007ffd1bf22a50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.175698][ T1227] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f23aeec254e
[   44.175700][ T1227] RDX: 0000000000000000 RSI: 00007ffd1bf22b00 RDI: 0000000000000005
[   44.175701][ T1227] RBP: 00007ffd1bf22a60 R08: 0000000000000000 R09: 0000000000000000
[   44.175702][ T1227] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918213
[   44.175702][ T1227] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd1bf231d0
| [   45.647810][ T1310] softirqs last disabled at (21140): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   45.647813][ T1310] Preemption disabled at:
| [   45.647814][ T1310] vprintk_emit (kernel/printk/printk.c:2471)
| [   45.647823][ T1310] Tainted: [W]=WARN
[   45.647824][ T1310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.647825][ T1310] Call Trace:
[   45.647827][ T1310]  <TASK>
[   45.647828][ T1310]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   45.647835][ T1310]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   45.647837][ T1310]  __might_resched.cold (kernel/sched/core.c:9234)
[   45.647841][ T1310]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   45.647846][ T1310]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   45.647851][ T1310]  __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))
[   45.647852][ T1310]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.647860][ T1310]  ? 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)
[   45.647862][ T1310]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.647866][ T1310]  put_chars (drivers/char/virtio_console.c:1176)
[   45.647869][ T1310]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   45.647870][ T1310]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.647874][ T1310]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.647880][ T1310]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   45.647888][ T1310]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   45.647891][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.647893][ T1310]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.647897][ T1310]  console_emit_next_record (kernel/printk/printk.c:3183)
[   45.647902][ T1310]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   45.647904][ T1310]  ? 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))
[   45.647907][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.647909][ T1310]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.647913][ T1310]  console_flush_one_record (kernel/printk/printk.c:3268)
[   45.647918][ T1310]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   45.647920][ T1310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.647925][ T1310]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   45.647928][ T1310]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   45.647930][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.647932][ T1310]  ? 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)
[   45.647936][ T1310]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   45.647938][ T1310]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   45.647941][ T1310]  vprintk_emit (kernel/printk/printk.c:2479)
[   45.647944][ T1310]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   45.647946][ T1310]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.647949][ T1310]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   45.647953][ T1310]  _printk (kernel/printk/printk.c:2504)
[   45.647957][ T1310]  ? snapshot_read.cold (user.c:?)
[   45.647960][ T1310]  ? br_multicast_flood (??:?)
[   45.647964][ T1310]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.647965][ T1310]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.647967][ T1310]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.647971][ T1310]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   45.647976][ T1310]  br_init_port (net/bridge/br_stp_if.c:39)
[   45.647978][ T1310]  new_nbp (net/bridge/br_if.c:449)
[   45.647983][ T1310]  br_add_if (net/bridge/br_if.c:592)
[   45.647985][ T1310]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   45.647989][ T1310]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   45.647995][ T1310]  do_set_master (net/core/rtnetlink.c:3071)
[   45.647999][ T1310]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.648003][ T1310]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   45.648006][ T1310]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   45.648008][ T1310]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   45.648010][ T1310]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   45.648014][ T1310]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.648016][ T1310]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.648018][ T1310]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.648020][ T1310]  ? kasan_save_stack (mm/kasan/common.c:58)
[   45.648023][ T1310]  ? kasan_save_stack (mm/kasan/common.c:57)
[   45.648024][ T1310]  ? kasan_save_track (mm/kasan/common.c:78)
[   45.648026][ T1310]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   45.648028][ T1310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.648030][ T1310]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   45.648033][ T1310]  ? ___sys_sendmsg (net/socket.c:2758)
[   45.648037][ T1310]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.648039][ T1310]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.648042][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.648044][ T1310]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.648045][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.648046][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.648048][ T1310]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   45.648051][ T1310]  ? __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)
[   45.648053][ T1310]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   45.648055][ T1310]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.648059][ T1310]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   45.648060][ T1310]  ? nla_get_range_signed (lib/nlattr.c:270)
[   45.648065][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.648068][ T1310]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   45.648073][ T1310]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.648079][ T1310]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.648081][ T1310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.648086][ T1310]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.648088][ T1310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.648090][ T1310]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.648092][ T1310]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.648096][ T1310]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.648098][ T1310]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.648101][ T1310]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.648103][ T1310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.648108][ T1310]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.648110][ T1310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.648113][ T1310]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   45.648117][ T1310]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.648120][ T1310]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   45.648127][ T1310]  ? 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))
[   45.648129][ T1310]  ? 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))
[   45.648133][ T1310]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   45.648138][ T1310]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   45.648140][ T1310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.648145][ T1310]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   45.648149][ T1310]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   45.648153][ T1310]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.648155][ T1310]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   45.648160][ T1310]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   45.648164][ T1310]  ____sys_sendmsg (net/socket.c:2713)
[   45.648166][ T1310]  ? copy_msghdr_from_user (net/socket.c:2650)
[   45.648168][ T1310]  ? sock_write_iter (net/socket.c:1269)
[   45.648170][ T1310]  ? move_addr_to_kernel (net/socket.c:258)
[   45.648178][ T1310]  ___sys_sendmsg (net/socket.c:2767)
[   45.648181][ T1310]  ? copy_msghdr_from_user (net/socket.c:2619)
[   45.648198][ T1310]  __sys_sendmsg (net/socket.c:2799)
[   45.648201][ T1310]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   45.648208][ T1310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.648211][ T1310]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   45.648215][ T1310]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   45.648217][ T1310]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   45.648220][ T1310] RIP: 0033:0x7f5b310d354e
[   45.648224][ T1310] 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
[   45.648226][ T1310] RSP: 002b:00007ffcb42618b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   45.648228][ T1310] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5b310d354e
[   45.648230][ T1310] RDX: 0000000000000000 RSI: 00007ffcb4261960 RDI: 0000000000000005
[   45.648231][ T1310] RBP: 00007ffcb42618c0 R08: 0000000000000000 R09: 0000000000000000
[   45.648231][ T1310] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918214
[   45.648232][ T1310] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcb4262030
| [   47.192603][ T1381] softirqs last disabled at (16086): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   47.192607][ T1381] Preemption disabled at:
| [   47.192608][ T1381] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.192619][ T1381] Tainted: [W]=WARN
[   47.192620][ T1381] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.192623][ T1381] Call Trace:
[   47.192625][ T1381]  <TASK>
[   47.192627][ T1381]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.192635][ T1381]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.192643][ T1381]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.192649][ T1381]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.192655][ T1381]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.192662][ T1381]  __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))
[   47.192665][ T1381]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.192676][ T1381]  ? 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)
[   47.192679][ T1381]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.192685][ T1381]  put_chars (drivers/char/virtio_console.c:1176)
[   47.192690][ T1381]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.192692][ T1381]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.192697][ T1381]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.192707][ T1381]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.192719][ T1381]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.192724][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.192727][ T1381]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.192734][ T1381]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.192741][ T1381]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.192744][ T1381]  ? 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))
[   47.192750][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.192753][ T1381]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.192760][ T1381]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.192767][ T1381]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.192770][ T1381]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.192780][ T1381]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.192785][ T1381]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.192788][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.192791][ T1381]  ? 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)
[   47.192798][ T1381]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.192800][ T1381]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.192806][ T1381]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.192811][ T1381]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.192814][ T1381]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.192819][ T1381]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   47.192826][ T1381]  _printk (kernel/printk/printk.c:2504)
[   47.192831][ T1381]  ? snapshot_read.cold (user.c:?)
[   47.192837][ T1381]  ? br_multicast_flood (??:?)
[   47.192841][ T1381]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   47.192844][ T1381]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   47.192846][ T1381]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   47.192854][ T1381]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   47.192861][ T1381]  br_init_port (net/bridge/br_stp_if.c:39)
[   47.192865][ T1381]  new_nbp (net/bridge/br_if.c:449)
[   47.192872][ T1381]  br_add_if (net/bridge/br_if.c:592)
[   47.192876][ T1381]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   47.192881][ T1381]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   47.192890][ T1381]  do_set_master (net/core/rtnetlink.c:3071)
[   47.192897][ T1381]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   47.192903][ T1381]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   47.192908][ T1381]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   47.192910][ T1381]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   47.192914][ T1381]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   47.192919][ T1381]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.192923][ T1381]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.192926][ T1381]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.192930][ T1381]  ? kasan_save_stack (mm/kasan/common.c:58)
[   47.192933][ T1381]  ? kasan_save_stack (mm/kasan/common.c:57)
[   47.192935][ T1381]  ? kasan_save_track (mm/kasan/common.c:78)
[   47.192937][ T1381]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   47.192942][ T1381]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.192945][ T1381]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   47.192949][ T1381]  ? ___sys_sendmsg (net/socket.c:2758)
[   47.192955][ T1381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.192959][ T1381]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.192963][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.192966][ T1381]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.192969][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.192971][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.192974][ T1381]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   47.192978][ T1381]  ? __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)
[   47.192981][ T1381]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   47.192985][ T1381]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.192991][ T1381]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   47.192993][ T1381]  ? nla_get_range_signed (lib/nlattr.c:270)
[   47.193001][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.193006][ T1381]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   47.193016][ T1381]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   47.193026][ T1381]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.193029][ T1381]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.193037][ T1381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.193041][ T1381]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.193044][ T1381]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.193047][ T1381]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.193054][ T1381]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.193058][ T1381]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   47.193063][ T1381]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.193066][ T1381]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.193074][ T1381]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.193077][ T1381]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.193083][ T1381]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   47.193088][ T1381]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.193093][ T1381]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   47.193105][ T1381]  ? 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))
[   47.193108][ T1381]  ? 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))
[   47.193116][ T1381]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   47.193123][ T1381]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   47.193128][ T1381]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.193136][ T1381]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   47.193143][ T1381]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   47.193149][ T1381]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.193152][ T1381]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   47.193161][ T1381]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   47.193166][ T1381]  ____sys_sendmsg (net/socket.c:2713)
[   47.193169][ T1381]  ? copy_msghdr_from_user (net/socket.c:2650)
[   47.193173][ T1381]  ? sock_write_iter (net/socket.c:1269)
[   47.193176][ T1381]  ? move_addr_to_kernel (net/socket.c:258)
[   47.193190][ T1381]  ___sys_sendmsg (net/socket.c:2767)
[   47.193195][ T1381]  ? copy_msghdr_from_user (net/socket.c:2619)
[   47.193225][ T1381]  __sys_sendmsg (net/socket.c:2799)
[   47.193230][ T1381]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   47.193242][ T1381]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.193248][ T1381]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   47.193252][ T1381]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   47.193257][ T1381]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.193260][ T1381] RIP: 0033:0x7ff761de454e
[   47.193266][ T1381] 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
[   47.193268][ T1381] RSP: 002b:00007fff3975a700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   47.193272][ T1381] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff761de454e
[   47.193274][ T1381] RDX: 0000000000000000 RSI: 00007fff3975a7b0 RDI: 0000000000000005
[   47.193276][ T1381] RBP: 00007fff3975a710 R08: 0000000000000000 R09: 0000000000000000
[   47.193277][ T1381] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918216
[   47.193279][ T1381] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3975ae80
| [   48.775369][ T1461] softirqs last disabled at (25576): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   48.775371][ T1461] Preemption disabled at:
| [   48.775372][ T1461] vprintk_emit (kernel/printk/printk.c:2471)
| [   48.775381][ T1461] Tainted: [W]=WARN
[   48.775382][ T1461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.775383][ T1461] Call Trace:
[   48.775385][ T1461]  <TASK>
[   48.775386][ T1461]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   48.775393][ T1461]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   48.775394][ T1461]  __might_resched.cold (kernel/sched/core.c:9234)
[   48.775399][ T1461]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   48.775403][ T1461]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   48.775407][ T1461]  __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))
[   48.775409][ T1461]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.775416][ T1461]  ? 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)
[   48.775419][ T1461]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.775423][ T1461]  put_chars (drivers/char/virtio_console.c:1176)
[   48.775425][ T1461]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   48.775426][ T1461]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.775430][ T1461]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.775436][ T1461]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   48.775443][ T1461]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   48.775446][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775448][ T1461]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.775452][ T1461]  console_emit_next_record (kernel/printk/printk.c:3183)
[   48.775456][ T1461]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   48.775458][ T1461]  ? 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))
[   48.775461][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775463][ T1461]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.775467][ T1461]  console_flush_one_record (kernel/printk/printk.c:3268)
[   48.775471][ T1461]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   48.775473][ T1461]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.775478][ T1461]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   48.775481][ T1461]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   48.775483][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775485][ T1461]  ? 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)
[   48.775488][ T1461]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   48.775490][ T1461]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   48.775493][ T1461]  vprintk_emit (kernel/printk/printk.c:2479)
[   48.775496][ T1461]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   48.775498][ T1461]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.775501][ T1461]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   48.775504][ T1461]  _printk (kernel/printk/printk.c:2504)
[   48.775508][ T1461]  ? snapshot_read.cold (user.c:?)
[   48.775512][ T1461]  ? br_multicast_flood (??:?)
[   48.775515][ T1461]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   48.775517][ T1461]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.775518][ T1461]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.775522][ T1461]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   48.775526][ T1461]  br_init_port (net/bridge/br_stp_if.c:39)
[   48.775529][ T1461]  new_nbp (net/bridge/br_if.c:449)
[   48.775532][ T1461]  br_add_if (net/bridge/br_if.c:592)
[   48.775535][ T1461]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   48.775538][ T1461]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   48.775544][ T1461]  do_set_master (net/core/rtnetlink.c:3071)
[   48.775548][ T1461]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   48.775551][ T1461]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   48.775555][ T1461]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   48.775556][ T1461]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.775559][ T1461]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.775562][ T1461]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.775564][ T1461]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.775566][ T1461]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.775569][ T1461]  ? kasan_save_stack (mm/kasan/common.c:58)
[   48.775571][ T1461]  ? kasan_save_stack (mm/kasan/common.c:57)
[   48.775572][ T1461]  ? kasan_save_track (mm/kasan/common.c:78)
[   48.775574][ T1461]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   48.775576][ T1461]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.775578][ T1461]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   48.775581][ T1461]  ? ___sys_sendmsg (net/socket.c:2758)
[   48.775585][ T1461]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.775586][ T1461]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.775589][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775591][ T1461]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.775592][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775593][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775595][ T1461]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   48.775597][ T1461]  ? __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)
[   48.775600][ T1461]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   48.775602][ T1461]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.775605][ T1461]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   48.775606][ T1461]  ? nla_get_range_signed (lib/nlattr.c:270)
[   48.775612][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775614][ T1461]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   48.775619][ T1461]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.775624][ T1461]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.775626][ T1461]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.775631][ T1461]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.775632][ T1461]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.775635][ T1461]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.775636][ T1461]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.775640][ T1461]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.775642][ T1461]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.775651][ T1461]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.775653][ T1461]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.775657][ T1461]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.775659][ T1461]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.775662][ T1461]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   48.775666][ T1461]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.775668][ T1461]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.775675][ T1461]  ? 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))
[   48.775677][ T1461]  ? 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))
[   48.775681][ T1461]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.775685][ T1461]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.775688][ T1461]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.775692][ T1461]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   48.775696][ T1461]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   48.775699][ T1461]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.775701][ T1461]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   48.775707][ T1461]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   48.775710][ T1461]  ____sys_sendmsg (net/socket.c:2713)
[   48.775712][ T1461]  ? copy_msghdr_from_user (net/socket.c:2650)
[   48.775714][ T1461]  ? sock_write_iter (net/socket.c:1269)
[   48.775716][ T1461]  ? move_addr_to_kernel (net/socket.c:258)
[   48.775723][ T1461]  ___sys_sendmsg (net/socket.c:2767)
[   48.775726][ T1461]  ? copy_msghdr_from_user (net/socket.c:2619)
[   48.775741][ T1461]  __sys_sendmsg (net/socket.c:2799)
[   48.775744][ T1461]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   48.775750][ T1461]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.775753][ T1461]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   48.775756][ T1461]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   48.775759][ T1461]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.775762][ T1461] RIP: 0033:0x7efccb72d54e
[   48.775765][ T1461] 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
[   48.775767][ T1461] RSP: 002b:00007ffd7d4f7a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.775770][ T1461] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efccb72d54e
[   48.775771][ T1461] RDX: 0000000000000000 RSI: 00007ffd7d4f7b10 RDI: 0000000000000005
[   48.775772][ T1461] RBP: 00007ffd7d4f7a70 R08: 0000000000000000 R09: 0000000000000000
[   48.775773][ T1461] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918218
[   48.775773][ T1461] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd7d4f81e0
| [   50.295861][   T12] softirqs last disabled at (351606): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   50.295863][   T12] Preemption disabled at:
| [   50.295863][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   50.295872][   T12] Tainted: [W]=WARN
[   50.295873][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.295875][   T12] Workqueue: netns cleanup_net
[   50.295878][   T12] Call Trace:
[   50.295880][   T12]  <TASK>
[   50.295882][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   50.295888][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   50.295890][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   50.295895][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   50.295899][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   50.295903][   T12]  __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))
[   50.295905][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.295912][   T12]  ? 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)
[   50.295915][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.295919][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   50.295922][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   50.295923][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   50.295926][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   50.295929][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   50.295934][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   50.295938][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   50.295944][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   50.295947][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.295952][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   50.295956][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   50.295958][   T12]  ? 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))
[   50.295961][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.295963][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.295967][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   50.295971][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   50.295973][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   50.295979][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   50.295982][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   50.295984][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.295985][   T12]  ? 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)
[   50.295989][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   50.295991][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   50.295994][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   50.295997][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   50.295998][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   50.296000][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   50.296002][   T12]  ? kthread (kernel/kthread.c:436)
[   50.296004][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   50.296007][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   50.296012][   T12]  _printk (kernel/printk/printk.c:2504)
[   50.296016][   T12]  ? snapshot_read.cold (user.c:?)
[   50.296021][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   50.296024][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   50.296029][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   50.296031][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   50.296036][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.296038][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   50.296040][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   50.296042][   T12]  ? 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)
[   50.296045][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   50.296049][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   50.296053][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   50.296059][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   50.296062][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   50.296066][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   50.296069][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   50.296073][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   50.296075][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   50.296078][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   50.296083][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   50.296086][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   50.296090][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.296092][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.296095][   T12]  process_one_work (kernel/workqueue.c:3387)
[   50.296102][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   50.296105][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   50.296113][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   50.296120][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   50.296123][   T12]  kthread (kernel/kthread.c:436)
[   50.296124][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.296128][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   50.296131][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   50.296134][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   50.296137][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   50.296141][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   50.296144][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.751469][ T1592] softirqs last disabled at (17488): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   51.751472][ T1592] Preemption disabled at:
| [   51.751472][ T1592] vprintk_emit (kernel/printk/printk.c:2471)
| [   51.751481][ T1592] Tainted: [W]=WARN
[   51.751482][ T1592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.751484][ T1592] Call Trace:
[   51.751485][ T1592]  <TASK>
[   51.751487][ T1592]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   51.751494][ T1592]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   51.751495][ T1592]  __might_resched.cold (kernel/sched/core.c:9234)
[   51.751500][ T1592]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   51.751504][ T1592]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   51.751509][ T1592]  __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))
[   51.751511][ T1592]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.751517][ T1592]  ? 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)
[   51.751520][ T1592]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.751524][ T1592]  put_chars (drivers/char/virtio_console.c:1176)
[   51.751527][ T1592]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   51.751533][ T1592]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   51.751541][ T1592]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   51.751545][ T1592]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.751549][ T1592]  console_emit_next_record (kernel/printk/printk.c:3183)
[   51.751553][ T1592]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   51.751555][ T1592]  ? 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))
[   51.751559][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751561][ T1592]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.751566][ T1592]  console_flush_one_record (kernel/printk/printk.c:3268)
[   51.751570][ T1592]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   51.751572][ T1592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.751577][ T1592]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   51.751580][ T1592]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   51.751582][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751584][ T1592]  ? 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)
[   51.751588][ T1592]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   51.751590][ T1592]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   51.751593][ T1592]  vprintk_emit (kernel/printk/printk.c:2479)
[   51.751596][ T1592]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   51.751598][ T1592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.751600][ T1592]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   51.751602][ T1592]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   51.751606][ T1592]  _printk (kernel/printk/printk.c:2504)
[   51.751610][ T1592]  ? snapshot_read.cold (user.c:?)
[   51.751611][ T1592]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.751614][ T1592]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.751617][ T1592]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.751619][ T1592]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   51.751623][ T1592]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   51.751626][ T1592]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.751628][ T1592]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   51.751631][ T1592]  ? netdev_notice (net/core/dev.c:13194)
[   51.751634][ T1592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.751637][ T1592]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.751640][ T1592]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   51.751643][ T1592]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.751645][ T1592]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   51.751648][ T1592]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   51.751654][ T1592]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   51.751662][ T1592]  ? __kernel_text_address (kernel/extable.c:79)
[   51.751664][ T1592]  ? write_profile (profile.c:?)
[   51.751668][ T1592]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   51.751674][ T1592]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.751678][ T1592]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   51.751680][ T1592]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   51.751681][ T1592]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   51.751683][ T1592]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.751687][ T1592]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.751689][ T1592]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.751691][ T1592]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.751693][ T1592]  ? kasan_save_stack (mm/kasan/common.c:58)
[   51.751695][ T1592]  ? kasan_save_stack (mm/kasan/common.c:57)
[   51.751696][ T1592]  ? kasan_save_track (mm/kasan/common.c:78)
[   51.751698][ T1592]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.751700][ T1592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.751702][ T1592]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   51.751705][ T1592]  ? ___sys_sendmsg (net/socket.c:2758)
[   51.751709][ T1592]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.751711][ T1592]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.751713][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751715][ T1592]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.751717][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751718][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751719][ T1592]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   51.751722][ T1592]  ? __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)
[   51.751725][ T1592]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   51.751727][ T1592]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.751730][ T1592]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   51.751731][ T1592]  ? nla_get_range_signed (lib/nlattr.c:270)
[   51.751736][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751739][ T1592]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   51.751744][ T1592]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   51.751749][ T1592]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.751751][ T1592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.751756][ T1592]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.751758][ T1592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.751760][ T1592]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.751762][ T1592]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.751766][ T1592]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.751768][ T1592]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   51.751771][ T1592]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.751772][ T1592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.751777][ T1592]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.751779][ T1592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.751782][ T1592]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   51.751786][ T1592]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.751789][ T1592]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   51.751795][ T1592]  ? 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))
[   51.751797][ T1592]  ? 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))
[   51.751802][ T1592]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.751805][ T1592]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   51.751808][ T1592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.751812][ T1592]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   51.751817][ T1592]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   51.751820][ T1592]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.751822][ T1592]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   51.751828][ T1592]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   51.751831][ T1592]  ____sys_sendmsg (net/socket.c:2713)
[   51.751833][ T1592]  ? copy_msghdr_from_user (net/socket.c:2650)
[   51.751835][ T1592]  ? sock_write_iter (net/socket.c:1269)
[   51.751837][ T1592]  ? move_addr_to_kernel (net/socket.c:258)
[   51.751844][ T1592]  ___sys_sendmsg (net/socket.c:2767)
[   51.751847][ T1592]  ? copy_msghdr_from_user (net/socket.c:2619)
[   51.751863][ T1592]  __sys_sendmsg (net/socket.c:2799)
[   51.751866][ T1592]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   51.751873][ T1592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.751876][ T1592]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   51.751879][ T1592]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   51.751882][ T1592]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.751884][ T1592] RIP: 0033:0x7fab5c66154e
[   51.751888][ T1592] 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
[   51.751890][ T1592] RSP: 002b:00007ffe4caca580 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   51.751892][ T1592] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fab5c66154e
[   51.751894][ T1592] RDX: 0000000000000000 RSI: 00007ffe4caca630 RDI: 0000000000000005
[   51.751895][ T1592] RBP: 00007ffe4caca590 R08: 0000000000000000 R09: 0000000000000000
[   51.751896][ T1592] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91821b
[   51.751896][ T1592] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4cacad00
| [   63.772803][ T1889] softirqs last disabled at (25354): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   63.772805][ T1889] Preemption disabled at:
| [   63.772806][ T1889] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.772814][ T1889] Tainted: [W]=WARN
[   63.772815][ T1889] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.772817][ T1889] Call Trace:
[   63.772818][ T1889]  <TASK>
[   63.772820][ T1889]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.772826][ T1889]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.772828][ T1889]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.772833][ T1889]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.772838][ T1889]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.772842][ T1889]  __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))
[   63.772844][ T1889]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.772851][ T1889]  ? 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)
[   63.772854][ T1889]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.772857][ T1889]  put_chars (drivers/char/virtio_console.c:1176)
[   63.772860][ T1889]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.772861][ T1889]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.772865][ T1889]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.772870][ T1889]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.772879][ T1889]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.772881][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.772883][ T1889]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.772888][ T1889]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.772892][ T1889]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.772894][ T1889]  ? 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))
[   63.772897][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.772899][ T1889]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.772903][ T1889]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.772907][ T1889]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.772909][ T1889]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.772914][ T1889]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.772917][ T1889]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.772919][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.772921][ T1889]  ? 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)
[   63.772925][ T1889]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.772927][ T1889]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.772929][ T1889]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.772932][ T1889]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.772934][ T1889]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.772937][ T1889]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.772941][ T1889]  _printk (kernel/printk/printk.c:2504)
[   63.772945][ T1889]  ? snapshot_read.cold (user.c:?)
[   63.772948][ T1889]  ? br_multicast_flood (??:?)
[   63.772952][ T1889]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.772953][ T1889]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.772955][ T1889]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.772959][ T1889]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   63.772963][ T1889]  br_init_port (net/bridge/br_stp_if.c:39)
[   63.772966][ T1889]  new_nbp (net/bridge/br_if.c:449)
[   63.772970][ T1889]  br_add_if (net/bridge/br_if.c:592)
[   63.772972][ T1889]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   63.772976][ T1889]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   63.772982][ T1889]  do_set_master (net/core/rtnetlink.c:3071)
[   63.772986][ T1889]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.772989][ T1889]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.772993][ T1889]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.772994][ T1889]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.772997][ T1889]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.773001][ T1889]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.773003][ T1889]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.773004][ T1889]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.773007][ T1889]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.773009][ T1889]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.773011][ T1889]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.773012][ T1889]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.773014][ T1889]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.773016][ T1889]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.773019][ T1889]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.773023][ T1889]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.773025][ T1889]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.773028][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.773030][ T1889]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.773031][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.773032][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.773034][ T1889]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.773036][ T1889]  ? __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)
[   63.773039][ T1889]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.773041][ T1889]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.773044][ T1889]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.773046][ T1889]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.773051][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.773053][ T1889]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.773059][ T1889]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.773064][ T1889]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.773066][ T1889]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.773071][ T1889]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.773073][ T1889]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.773075][ T1889]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.773077][ T1889]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.773081][ T1889]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.773083][ T1889]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.773086][ T1889]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.773087][ T1889]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.773092][ T1889]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.773094][ T1889]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.773097][ T1889]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.773100][ T1889]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.773103][ T1889]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.773110][ T1889]  ? 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))
[   63.773112][ T1889]  ? 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))
[   63.773117][ T1889]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.773121][ T1889]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.773123][ T1889]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.773128][ T1889]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.773132][ T1889]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.773136][ T1889]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.773137][ T1889]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.773143][ T1889]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.773146][ T1889]  ____sys_sendmsg (net/socket.c:2713)
[   63.773148][ T1889]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.773150][ T1889]  ? sock_write_iter (net/socket.c:1269)
[   63.773152][ T1889]  ? move_addr_to_kernel (net/socket.c:258)
[   63.773160][ T1889]  ___sys_sendmsg (net/socket.c:2767)
[   63.773162][ T1889]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.773179][ T1889]  __sys_sendmsg (net/socket.c:2799)
[   63.773182][ T1889]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.773188][ T1889]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.773191][ T1889]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.773194][ T1889]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.773197][ T1889]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.773199][ T1889] RIP: 0033:0x7f51eec1c54e
[   63.773203][ T1889] 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
[   63.773205][ T1889] RSP: 002b:00007ffd8fa903d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.773208][ T1889] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f51eec1c54e
[   63.773209][ T1889] RDX: 0000000000000000 RSI: 00007ffd8fa90480 RDI: 0000000000000005
[   63.773210][ T1889] RBP: 00007ffd8fa903e0 R08: 0000000000000000 R09: 0000000000000000
[   63.773211][ T1889] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918227
[   63.773212][ T1889] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd8fa90b50
| [   65.327042][ T1977] softirqs last disabled at (22560): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   65.327045][ T1977] Preemption disabled at:
| [   65.327046][ T1977] vprintk_emit (kernel/printk/printk.c:2471)
| [   65.327055][ T1977] Tainted: [W]=WARN
[   65.327055][ T1977] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.327057][ T1977] Call Trace:
[   65.327059][ T1977]  <TASK>
[   65.327060][ T1977]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.327067][ T1977]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   65.327068][ T1977]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.327073][ T1977]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.327077][ T1977]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   65.327082][ T1977]  __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))
[   65.327084][ T1977]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.327091][ T1977]  ? 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)
[   65.327093][ T1977]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.327097][ T1977]  put_chars (drivers/char/virtio_console.c:1176)
[   65.327100][ T1977]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.327101][ T1977]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.327105][ T1977]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.327110][ T1977]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.327118][ T1977]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.327121][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327123][ T1977]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.327127][ T1977]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.327131][ T1977]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.327133][ T1977]  ? 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))
[   65.327137][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327138][ T1977]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.327142][ T1977]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.327147][ T1977]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.327149][ T1977]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.327154][ T1977]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.327157][ T1977]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.327159][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327161][ T1977]  ? 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)
[   65.327165][ T1977]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.327167][ T1977]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.327169][ T1977]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.327173][ T1977]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.327175][ T1977]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.327177][ T1977]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   65.327181][ T1977]  _printk (kernel/printk/printk.c:2504)
[   65.327185][ T1977]  ? snapshot_read.cold (user.c:?)
[   65.327189][ T1977]  ? br_multicast_flood (??:?)
[   65.327192][ T1977]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   65.327193][ T1977]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.327195][ T1977]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.327199][ T1977]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   65.327203][ T1977]  br_init_port (net/bridge/br_stp_if.c:39)
[   65.327206][ T1977]  new_nbp (net/bridge/br_if.c:449)
[   65.327210][ T1977]  br_add_if (net/bridge/br_if.c:592)
[   65.327213][ T1977]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   65.327216][ T1977]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   65.327222][ T1977]  do_set_master (net/core/rtnetlink.c:3071)
[   65.327226][ T1977]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   65.327229][ T1977]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   65.327233][ T1977]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   65.327234][ T1977]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   65.327237][ T1977]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   65.327240][ T1977]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.327242][ T1977]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.327244][ T1977]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.327247][ T1977]  ? kasan_save_stack (mm/kasan/common.c:58)
[   65.327249][ T1977]  ? kasan_save_stack (mm/kasan/common.c:57)
[   65.327250][ T1977]  ? kasan_save_track (mm/kasan/common.c:78)
[   65.327251][ T1977]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   65.327254][ T1977]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.327256][ T1977]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   65.327258][ T1977]  ? ___sys_sendmsg (net/socket.c:2758)
[   65.327262][ T1977]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.327264][ T1977]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.327267][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327269][ T1977]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.327270][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327271][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327273][ T1977]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   65.327276][ T1977]  ? __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)
[   65.327278][ T1977]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   65.327280][ T1977]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.327283][ T1977]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   65.327285][ T1977]  ? nla_get_range_signed (lib/nlattr.c:270)
[   65.327290][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327292][ T1977]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   65.327298][ T1977]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.327303][ T1977]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.327305][ T1977]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.327310][ T1977]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.327312][ T1977]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.327314][ T1977]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.327316][ T1977]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.327320][ T1977]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.327322][ T1977]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.327325][ T1977]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.327326][ T1977]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.327331][ T1977]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.327333][ T1977]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.327336][ T1977]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   65.327340][ T1977]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.327345][ T1977]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   65.327351][ T1977]  ? 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))
[   65.327354][ T1977]  ? 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))
[   65.327358][ T1977]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   65.327362][ T1977]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   65.327365][ T1977]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.327369][ T1977]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   65.327374][ T1977]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   65.327378][ T1977]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.327379][ T1977]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   65.327385][ T1977]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   65.327388][ T1977]  ____sys_sendmsg (net/socket.c:2713)
[   65.327390][ T1977]  ? copy_msghdr_from_user (net/socket.c:2650)
[   65.327393][ T1977]  ? sock_write_iter (net/socket.c:1269)
[   65.327394][ T1977]  ? move_addr_to_kernel (net/socket.c:258)
[   65.327402][ T1977]  ___sys_sendmsg (net/socket.c:2767)
[   65.327405][ T1977]  ? copy_msghdr_from_user (net/socket.c:2619)
[   65.327422][ T1977]  __sys_sendmsg (net/socket.c:2799)
[   65.327425][ T1977]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   65.327432][ T1977]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.327435][ T1977]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   65.327438][ T1977]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   65.327441][ T1977]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   65.327444][ T1977] RIP: 0033:0x7feb67e3854e
[   65.327448][ T1977] 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
[   65.327449][ T1977] RSP: 002b:00007ffe104890f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   65.327452][ T1977] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007feb67e3854e
[   65.327453][ T1977] RDX: 0000000000000000 RSI: 00007ffe104891a0 RDI: 0000000000000005
[   65.327454][ T1977] RBP: 00007ffe10489100 R08: 0000000000000000 R09: 0000000000000000
[   65.327455][ T1977] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918228
[   65.327456][ T1977] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe10489870
| [   66.822406][ T2047] softirqs last disabled at (23896): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   66.822408][ T2047] Preemption disabled at:
| [   66.822409][ T2047] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.822418][ T2047] Tainted: [W]=WARN
[   66.822419][ T2047] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.822421][ T2047] Call Trace:
[   66.822422][ T2047]  <TASK>
[   66.822424][ T2047]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.822430][ T2047]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.822432][ T2047]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.822437][ T2047]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.822441][ T2047]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.822446][ T2047]  __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))
[   66.822448][ T2047]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.822454][ T2047]  ? 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)
[   66.822457][ T2047]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.822461][ T2047]  put_chars (drivers/char/virtio_console.c:1176)
[   66.822464][ T2047]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.822465][ T2047]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.822469][ T2047]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.822475][ T2047]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.822482][ T2047]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.822485][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822487][ T2047]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.822491][ T2047]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.822495][ T2047]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.822497][ T2047]  ? 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))
[   66.822501][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822503][ T2047]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.822507][ T2047]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.822511][ T2047]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.822513][ T2047]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.822519][ T2047]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.822521][ T2047]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.822523][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822525][ T2047]  ? 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)
[   66.822529][ T2047]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.822531][ T2047]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.822534][ T2047]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.822537][ T2047]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.822539][ T2047]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.822542][ T2047]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.822545][ T2047]  _printk (kernel/printk/printk.c:2504)
[   66.822549][ T2047]  ? snapshot_read.cold (user.c:?)
[   66.822553][ T2047]  ? br_multicast_flood (??:?)
[   66.822556][ T2047]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   66.822558][ T2047]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.822559][ T2047]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.822563][ T2047]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   66.822568][ T2047]  br_init_port (net/bridge/br_stp_if.c:39)
[   66.822570][ T2047]  new_nbp (net/bridge/br_if.c:449)
[   66.822574][ T2047]  br_add_if (net/bridge/br_if.c:592)
[   66.822577][ T2047]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   66.822581][ T2047]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   66.822586][ T2047]  do_set_master (net/core/rtnetlink.c:3071)
[   66.822590][ T2047]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   66.822594][ T2047]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.822598][ T2047]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.822599][ T2047]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.822602][ T2047]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.822605][ T2047]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.822607][ T2047]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.822609][ T2047]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.822612][ T2047]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.822614][ T2047]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.822615][ T2047]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.822617][ T2047]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.822619][ T2047]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.822621][ T2047]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.822624][ T2047]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.822628][ T2047]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.822630][ T2047]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.822633][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822634][ T2047]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.822636][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822637][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822639][ T2047]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.822641][ T2047]  ? __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)
[   66.822643][ T2047]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.822645][ T2047]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.822649][ T2047]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.822650][ T2047]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.822655][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822658][ T2047]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.822663][ T2047]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.822669][ T2047]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.822671][ T2047]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.822675][ T2047]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.822677][ T2047]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.822680][ T2047]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.822681][ T2047]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.822685][ T2047]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.822687][ T2047]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.822690][ T2047]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.822692][ T2047]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.822697][ T2047]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.822699][ T2047]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.822702][ T2047]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.822706][ T2047]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.822709][ T2047]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.822720][ T2047]  ? 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))
[   66.822722][ T2047]  ? 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))
[   66.822727][ T2047]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.822731][ T2047]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.822734][ T2047]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.822738][ T2047]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.822743][ T2047]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.822747][ T2047]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.822748][ T2047]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.822754][ T2047]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.822757][ T2047]  ____sys_sendmsg (net/socket.c:2713)
[   66.822759][ T2047]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.822762][ T2047]  ? sock_write_iter (net/socket.c:1269)
[   66.822763][ T2047]  ? move_addr_to_kernel (net/socket.c:258)
[   66.822771][ T2047]  ___sys_sendmsg (net/socket.c:2767)
[   66.822774][ T2047]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.822790][ T2047]  __sys_sendmsg (net/socket.c:2799)
[   66.822794][ T2047]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.822800][ T2047]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.822803][ T2047]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.822806][ T2047]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.822809][ T2047]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.822811][ T2047] RIP: 0033:0x7fdebeeba54e
[   66.822815][ T2047] 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
[   66.822817][ T2047] RSP: 002b:00007ffde4ab73d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.822820][ T2047] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdebeeba54e
[   66.822821][ T2047] RDX: 0000000000000000 RSI: 00007ffde4ab7480 RDI: 0000000000000005
[   66.822822][ T2047] RBP: 00007ffde4ab73e0 R08: 0000000000000000 R09: 0000000000000000
[   66.822823][ T2047] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91822a
[   66.822824][ T2047] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde4ab7b50
| [   68.339897][ T2133] softirqs last disabled at (25618): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   68.339899][ T2133] Preemption disabled at:
| [   68.339900][ T2133] vprintk_emit (kernel/printk/printk.c:2471)
| [   68.339909][ T2133] Tainted: [W]=WARN
[   68.339910][ T2133] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   68.339911][ T2133] Call Trace:
[   68.339913][ T2133]  <TASK>
[   68.339914][ T2133]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   68.339921][ T2133]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   68.339922][ T2133]  __might_resched.cold (kernel/sched/core.c:9234)
[   68.339927][ T2133]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   68.339931][ T2133]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   68.339936][ T2133]  __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))
[   68.339938][ T2133]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.339945][ T2133]  ? 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)
[   68.339948][ T2133]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.339952][ T2133]  put_chars (drivers/char/virtio_console.c:1176)
[   68.339954][ T2133]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   68.339956][ T2133]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.339959][ T2133]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.339965][ T2133]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   68.339973][ T2133]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   68.339976][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.339978][ T2133]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.339983][ T2133]  console_emit_next_record (kernel/printk/printk.c:3183)
[   68.339987][ T2133]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   68.339989][ T2133]  ? 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))
[   68.339992][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.339994][ T2133]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.339998][ T2133]  console_flush_one_record (kernel/printk/printk.c:3268)
[   68.340003][ T2133]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   68.340005][ T2133]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.340010][ T2133]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   68.340013][ T2133]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   68.340015][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.340017][ T2133]  ? 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)
[   68.340021][ T2133]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   68.340023][ T2133]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   68.340026][ T2133]  vprintk_emit (kernel/printk/printk.c:2479)
[   68.340029][ T2133]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   68.340031][ T2133]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.340034][ T2133]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   68.340038][ T2133]  _printk (kernel/printk/printk.c:2504)
[   68.340042][ T2133]  ? snapshot_read.cold (user.c:?)
[   68.340046][ T2133]  ? br_multicast_flood (??:?)
[   68.340049][ T2133]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   68.340051][ T2133]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   68.340052][ T2133]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   68.340057][ T2133]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   68.340061][ T2133]  br_init_port (net/bridge/br_stp_if.c:39)
[   68.340064][ T2133]  new_nbp (net/bridge/br_if.c:449)
[   68.340068][ T2133]  br_add_if (net/bridge/br_if.c:592)
[   68.340070][ T2133]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   68.340074][ T2133]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   68.340080][ T2133]  do_set_master (net/core/rtnetlink.c:3071)
[   68.340084][ T2133]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   68.340088][ T2133]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   68.340091][ T2133]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   68.340093][ T2133]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   68.340095][ T2133]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   68.340099][ T2133]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.340101][ T2133]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.340103][ T2133]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.340106][ T2133]  ? kasan_save_stack (mm/kasan/common.c:58)
[   68.340108][ T2133]  ? kasan_save_stack (mm/kasan/common.c:57)
[   68.340109][ T2133]  ? kasan_save_track (mm/kasan/common.c:78)
[   68.340111][ T2133]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   68.340113][ T2133]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.340115][ T2133]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   68.340118][ T2133]  ? ___sys_sendmsg (net/socket.c:2758)
[   68.340122][ T2133]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.340124][ T2133]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.340127][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.340128][ T2133]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.340130][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.340131][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.340133][ T2133]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   68.340136][ T2133]  ? __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)
[   68.340138][ T2133]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   68.340140][ T2133]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.340144][ T2133]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   68.340145][ T2133]  ? nla_get_range_signed (lib/nlattr.c:270)
[   68.340150][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.340153][ T2133]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   68.340158][ T2133]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   68.340164][ T2133]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.340166][ T2133]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.340171][ T2133]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.340173][ T2133]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.340175][ T2133]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.340177][ T2133]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.340181][ T2133]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.340183][ T2133]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   68.340186][ T2133]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.340188][ T2133]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.340192][ T2133]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.340194][ T2133]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.340198][ T2133]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   68.340201][ T2133]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.340204][ T2133]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   68.340211][ T2133]  ? 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))
[   68.340213][ T2133]  ? 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))
[   68.340218][ T2133]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   68.340222][ T2133]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   68.340225][ T2133]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.340229][ T2133]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   68.340234][ T2133]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   68.340238][ T2133]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.340239][ T2133]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   68.340245][ T2133]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   68.340248][ T2133]  ____sys_sendmsg (net/socket.c:2713)
[   68.340251][ T2133]  ? copy_msghdr_from_user (net/socket.c:2650)
[   68.340253][ T2133]  ? sock_write_iter (net/socket.c:1269)
[   68.340255][ T2133]  ? move_addr_to_kernel (net/socket.c:258)
[   68.340263][ T2133]  ___sys_sendmsg (net/socket.c:2767)
[   68.340266][ T2133]  ? copy_msghdr_from_user (net/socket.c:2619)
[   68.340283][ T2133]  __sys_sendmsg (net/socket.c:2799)
[   68.340286][ T2133]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   68.340292][ T2133]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.340296][ T2133]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   68.340299][ T2133]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   68.340302][ T2133]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   68.340304][ T2133] RIP: 0033:0x7f642e45654e
[   68.340308][ T2133] 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
[   68.340310][ T2133] RSP: 002b:00007ffcac13d9e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   68.340312][ T2133] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f642e45654e
[   68.340314][ T2133] RDX: 0000000000000000 RSI: 00007ffcac13da90 RDI: 0000000000000005
[   68.340315][ T2133] RBP: 00007ffcac13d9f0 R08: 0000000000000000 R09: 0000000000000000
[   68.340315][ T2133] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91822b
[   68.340316][ T2133] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcac13e160
| [   69.866086][   T12] softirqs last disabled at (706896): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   69.866088][   T12] Preemption disabled at:
| [   69.866088][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   69.866097][   T12] Tainted: [W]=WARN
[   69.866098][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   69.866100][   T12] Workqueue: netns cleanup_net
[   69.866103][   T12] Call Trace:
[   69.866104][   T12]  <TASK>
[   69.866106][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   69.866113][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   69.866114][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   69.866119][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   69.866123][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   69.866128][   T12]  __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))
[   69.866130][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.866137][   T12]  ? 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)
[   69.866140][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.866144][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   69.866147][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   69.866148][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.866152][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.866155][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.866160][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   69.866164][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.866170][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   69.866173][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.866178][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   69.866182][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   69.866184][   T12]  ? 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))
[   69.866188][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.866190][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.866194][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   69.866198][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   69.866200][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.866206][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   69.866209][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   69.866211][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.866213][   T12]  ? 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)
[   69.866217][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   69.866219][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   69.866222][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   69.866225][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   69.866227][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   69.866229][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   69.866230][   T12]  ? kthread (kernel/kthread.c:436)
[   69.866233][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   69.866236][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   69.866241][   T12]  _printk (kernel/printk/printk.c:2504)
[   69.866245][   T12]  ? snapshot_read.cold (user.c:?)
[   69.866249][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   69.866253][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   69.866258][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   69.866261][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   69.866265][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.866267][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   69.866270][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   69.866272][   T12]  ? 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)
[   69.866274][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   69.866279][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   69.866283][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   69.866289][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   69.866293][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   69.866297][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   69.866300][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   69.866304][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   69.866306][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.866309][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   69.866314][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   69.866318][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   69.866322][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.866324][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.866327][   T12]  process_one_work (kernel/workqueue.c:3387)
[   69.866334][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   69.866338][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.866348][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   69.866356][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   69.866358][   T12]  kthread (kernel/kthread.c:436)
[   69.866360][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   69.866364][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   69.866367][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   69.866370][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   69.866373][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   69.866377][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   69.866380][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   71.336887][ T2266] softirqs last disabled at (13766): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   71.336890][ T2266] Preemption disabled at:
| [   71.336890][ T2266] vprintk_emit (kernel/printk/printk.c:2471)
| [   71.336899][ T2266] Tainted: [W]=WARN
[   71.336900][ T2266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.336902][ T2266] Call Trace:
[   71.336904][ T2266]  <TASK>
[   71.336905][ T2266]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   71.336912][ T2266]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   71.336914][ T2266]  __might_resched.cold (kernel/sched/core.c:9234)
[   71.336918][ T2266]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   71.336922][ T2266]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   71.336927][ T2266]  __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))
[   71.336929][ T2266]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   71.336936][ T2266]  ? 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)
[   71.336938][ T2266]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   71.336942][ T2266]  put_chars (drivers/char/virtio_console.c:1176)
[   71.336945][ T2266]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   71.336951][ T2266]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   71.336959][ T2266]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   71.336963][ T2266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.336968][ T2266]  console_emit_next_record (kernel/printk/printk.c:3183)
[   71.336972][ T2266]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   71.336974][ T2266]  ? 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))
[   71.336977][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.336980][ T2266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.336984][ T2266]  console_flush_one_record (kernel/printk/printk.c:3268)
[   71.336988][ T2266]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   71.336990][ T2266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.336996][ T2266]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   71.336999][ T2266]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   71.337001][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.337003][ T2266]  ? 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)
[   71.337006][ T2266]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   71.337008][ T2266]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   71.337011][ T2266]  vprintk_emit (kernel/printk/printk.c:2479)
[   71.337014][ T2266]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   71.337016][ T2266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.337018][ T2266]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   71.337020][ T2266]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   71.337024][ T2266]  _printk (kernel/printk/printk.c:2504)
[   71.337028][ T2266]  ? snapshot_read.cold (user.c:?)
[   71.337030][ T2266]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   71.337032][ T2266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   71.337035][ T2266]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   71.337037][ T2266]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   71.337041][ T2266]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   71.337044][ T2266]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   71.337046][ T2266]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   71.337049][ T2266]  ? netdev_notice (net/core/dev.c:13194)
[   71.337052][ T2266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.337055][ T2266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   71.337058][ T2266]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   71.337061][ T2266]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   71.337063][ T2266]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   71.337066][ T2266]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   71.337072][ T2266]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   71.337074][ T2266]  ? __kernel_text_address (kernel/extable.c:79)
[   71.337077][ T2266]  ? write_profile (profile.c:?)
[   71.337081][ T2266]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   71.337087][ T2266]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   71.337090][ T2266]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   71.337093][ T2266]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   71.337094][ T2266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   71.337096][ T2266]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   71.337099][ T2266]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   71.337101][ T2266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   71.337103][ T2266]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   71.337105][ T2266]  ? kasan_save_stack (mm/kasan/common.c:58)
[   71.337107][ T2266]  ? kasan_save_stack (mm/kasan/common.c:57)
[   71.337108][ T2266]  ? kasan_save_track (mm/kasan/common.c:78)
[   71.337110][ T2266]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   71.337112][ T2266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.337114][ T2266]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   71.337117][ T2266]  ? ___sys_sendmsg (net/socket.c:2758)
[   71.337121][ T2266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   71.337123][ T2266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   71.337126][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.337127][ T2266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.337129][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.337130][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.337132][ T2266]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   71.337134][ T2266]  ? __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)
[   71.337137][ T2266]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   71.337139][ T2266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   71.337142][ T2266]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   71.337144][ T2266]  ? nla_get_range_signed (lib/nlattr.c:270)
[   71.337149][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.337151][ T2266]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   71.337157][ T2266]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   71.337162][ T2266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   71.337164][ T2266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.337169][ T2266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   71.337171][ T2266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.337173][ T2266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   71.337174][ T2266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   71.337178][ T2266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   71.337180][ T2266]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   71.337184][ T2266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   71.337185][ T2266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.337190][ T2266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   71.337192][ T2266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.337195][ T2266]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   71.337199][ T2266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   71.337202][ T2266]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   71.337208][ T2266]  ? 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))
[   71.337210][ T2266]  ? 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))
[   71.337215][ T2266]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   71.337219][ T2266]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   71.337222][ T2266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.337226][ T2266]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   71.337230][ T2266]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   71.337234][ T2266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   71.337236][ T2266]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   71.337241][ T2266]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   71.337244][ T2266]  ____sys_sendmsg (net/socket.c:2713)
[   71.337246][ T2266]  ? copy_msghdr_from_user (net/socket.c:2650)
[   71.337249][ T2266]  ? sock_write_iter (net/socket.c:1269)
[   71.337250][ T2266]  ? move_addr_to_kernel (net/socket.c:258)
[   71.337258][ T2266]  ___sys_sendmsg (net/socket.c:2767)
[   71.337261][ T2266]  ? copy_msghdr_from_user (net/socket.c:2619)
[   71.337278][ T2266]  __sys_sendmsg (net/socket.c:2799)
[   71.337281][ T2266]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   71.337288][ T2266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.337291][ T2266]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   71.337294][ T2266]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   71.337297][ T2266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.337299][ T2266] RIP: 0033:0x7fc2d28d154e
[   71.337303][ T2266] 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
[   71.337305][ T2266] RSP: 002b:00007ffc5c5763b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   71.337307][ T2266] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc2d28d154e
[   71.337309][ T2266] RDX: 0000000000000000 RSI: 00007ffc5c576460 RDI: 0000000000000005
[   71.337310][ T2266] RBP: 00007ffc5c5763c0 R08: 0000000000000000 R09: 0000000000000000
[   71.337310][ T2266] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91822e
[   71.337311][ T2266] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5c576b30
| [   83.680366][ T2561] softirqs last disabled at (19192): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   83.680369][ T2561] Preemption disabled at:
| [   83.680369][ T2561] vprintk_emit (kernel/printk/printk.c:2471)
| [   83.680378][ T2561] Tainted: [W]=WARN
[   83.680379][ T2561] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   83.680381][ T2561] Call Trace:
[   83.680382][ T2561]  <TASK>
[   83.680383][ T2561]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   83.680390][ T2561]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   83.680392][ T2561]  __might_resched.cold (kernel/sched/core.c:9234)
[   83.680396][ T2561]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   83.680400][ T2561]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   83.680405][ T2561]  __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))
[   83.680407][ T2561]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.680413][ T2561]  ? 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)
[   83.680417][ T2561]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.680421][ T2561]  put_chars (drivers/char/virtio_console.c:1176)
[   83.680423][ T2561]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   83.680424][ T2561]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.680428][ T2561]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.680433][ T2561]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   83.680441][ T2561]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   83.680444][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680446][ T2561]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.680450][ T2561]  console_emit_next_record (kernel/printk/printk.c:3183)
[   83.680454][ T2561]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   83.680456][ T2561]  ? 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))
[   83.680459][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680461][ T2561]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.680465][ T2561]  console_flush_one_record (kernel/printk/printk.c:3268)
[   83.680469][ T2561]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   83.680471][ T2561]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.680476][ T2561]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   83.680479][ T2561]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   83.680481][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680483][ T2561]  ? 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)
[   83.680486][ T2561]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   83.680488][ T2561]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   83.680491][ T2561]  vprintk_emit (kernel/printk/printk.c:2479)
[   83.680494][ T2561]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   83.680496][ T2561]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.680498][ T2561]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   83.680502][ T2561]  _printk (kernel/printk/printk.c:2504)
[   83.680506][ T2561]  ? snapshot_read.cold (user.c:?)
[   83.680509][ T2561]  ? br_multicast_flood (??:?)
[   83.680513][ T2561]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   83.680514][ T2561]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.680516][ T2561]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.680520][ T2561]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   83.680524][ T2561]  br_init_port (net/bridge/br_stp_if.c:39)
[   83.680527][ T2561]  new_nbp (net/bridge/br_if.c:449)
[   83.680530][ T2561]  br_add_if (net/bridge/br_if.c:592)
[   83.680533][ T2561]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   83.680537][ T2561]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   83.680542][ T2561]  do_set_master (net/core/rtnetlink.c:3071)
[   83.680546][ T2561]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   83.680549][ T2561]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   83.680553][ T2561]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   83.680554][ T2561]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   83.680557][ T2561]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   83.680560][ T2561]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.680562][ T2561]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.680564][ T2561]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.680567][ T2561]  ? kasan_save_stack (mm/kasan/common.c:58)
[   83.680569][ T2561]  ? kasan_save_stack (mm/kasan/common.c:57)
[   83.680570][ T2561]  ? kasan_save_track (mm/kasan/common.c:78)
[   83.680571][ T2561]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   83.680574][ T2561]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.680576][ T2561]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   83.680579][ T2561]  ? ___sys_sendmsg (net/socket.c:2758)
[   83.680582][ T2561]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.680584][ T2561]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.680587][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680589][ T2561]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.680590][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680591][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680593][ T2561]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   83.680595][ T2561]  ? __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)
[   83.680598][ T2561]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   83.680600][ T2561]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.680603][ T2561]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   83.680604][ T2561]  ? nla_get_range_signed (lib/nlattr.c:270)
[   83.680610][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680612][ T2561]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   83.680617][ T2561]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.680622][ T2561]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.680624][ T2561]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.680629][ T2561]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.680631][ T2561]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.680633][ T2561]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.680635][ T2561]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.680638][ T2561]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.680640][ T2561]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.680644][ T2561]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.680645][ T2561]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.680649][ T2561]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.680651][ T2561]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.680655][ T2561]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   83.680658][ T2561]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.680661][ T2561]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   83.680667][ T2561]  ? 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))
[   83.680669][ T2561]  ? 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))
[   83.680674][ T2561]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   83.680678][ T2561]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   83.680681][ T2561]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.680685][ T2561]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   83.680689][ T2561]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   83.680693][ T2561]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.680694][ T2561]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   83.680700][ T2561]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   83.680703][ T2561]  ____sys_sendmsg (net/socket.c:2713)
[   83.680705][ T2561]  ? copy_msghdr_from_user (net/socket.c:2650)
[   83.680707][ T2561]  ? sock_write_iter (net/socket.c:1269)
[   83.680709][ T2561]  ? move_addr_to_kernel (net/socket.c:258)
[   83.680716][ T2561]  ___sys_sendmsg (net/socket.c:2767)
[   83.680719][ T2561]  ? copy_msghdr_from_user (net/socket.c:2619)
[   83.680735][ T2561]  __sys_sendmsg (net/socket.c:2799)
[   83.680738][ T2561]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   83.680744][ T2561]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   83.680747][ T2561]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.680750][ T2561]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   83.680753][ T2561]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   83.680756][ T2561]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   83.680758][ T2561] RIP: 0033:0x7f1b46fff54e
[   83.680762][ T2561] 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
[   83.680764][ T2561] RSP: 002b:00007ffeeca34ef0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   83.680767][ T2561] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1b46fff54e
[   83.680768][ T2561] RDX: 0000000000000000 RSI: 00007ffeeca34fa0 RDI: 0000000000000005
[   83.680769][ T2561] RBP: 00007ffeeca34f00 R08: 0000000000000000 R09: 0000000000000000
[   83.680770][ T2561] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91823a
[   83.680771][ T2561] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeeca35670
| [   85.385673][ T2651] softirqs last disabled at (28326): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   85.385676][ T2651] Preemption disabled at:
| [   85.385677][ T2651] vprintk_emit (kernel/printk/printk.c:2471)
| [   85.385685][ T2651] Tainted: [W]=WARN
[   85.385686][ T2651] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.385688][ T2651] Call Trace:
[   85.385690][ T2651]  <TASK>
[   85.385691][ T2651]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   85.385698][ T2651]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   85.385699][ T2651]  __might_resched.cold (kernel/sched/core.c:9234)
[   85.385704][ T2651]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   85.385708][ T2651]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   85.385713][ T2651]  __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))
[   85.385714][ T2651]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   85.385721][ T2651]  ? 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)
[   85.385724][ T2651]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   85.385728][ T2651]  put_chars (drivers/char/virtio_console.c:1176)
[   85.385730][ T2651]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   85.385732][ T2651]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   85.385735][ T2651]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   85.385741][ T2651]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   85.385749][ T2651]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   85.385752][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385754][ T2651]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.385758][ T2651]  console_emit_next_record (kernel/printk/printk.c:3183)
[   85.385762][ T2651]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   85.385764][ T2651]  ? 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))
[   85.385768][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385769][ T2651]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.385773][ T2651]  console_flush_one_record (kernel/printk/printk.c:3268)
[   85.385778][ T2651]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   85.385780][ T2651]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.385789][ T2651]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   85.385792][ T2651]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   85.385794][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385796][ T2651]  ? 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)
[   85.385800][ T2651]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   85.385802][ T2651]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   85.385804][ T2651]  vprintk_emit (kernel/printk/printk.c:2479)
[   85.385808][ T2651]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   85.385810][ T2651]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   85.385812][ T2651]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   85.385816][ T2651]  _printk (kernel/printk/printk.c:2504)
[   85.385820][ T2651]  ? snapshot_read.cold (user.c:?)
[   85.385824][ T2651]  ? br_multicast_flood (??:?)
[   85.385827][ T2651]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   85.385829][ T2651]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   85.385830][ T2651]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   85.385834][ T2651]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   85.385839][ T2651]  br_init_port (net/bridge/br_stp_if.c:39)
[   85.385841][ T2651]  new_nbp (net/bridge/br_if.c:449)
[   85.385845][ T2651]  br_add_if (net/bridge/br_if.c:592)
[   85.385848][ T2651]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   85.385851][ T2651]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   85.385857][ T2651]  do_set_master (net/core/rtnetlink.c:3071)
[   85.385861][ T2651]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   85.385864][ T2651]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   85.385868][ T2651]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   85.385869][ T2651]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   85.385872][ T2651]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   85.385875][ T2651]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   85.385877][ T2651]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   85.385879][ T2651]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   85.385882][ T2651]  ? kasan_save_stack (mm/kasan/common.c:58)
[   85.385884][ T2651]  ? kasan_save_stack (mm/kasan/common.c:57)
[   85.385885][ T2651]  ? kasan_save_track (mm/kasan/common.c:78)
[   85.385887][ T2651]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   85.385889][ T2651]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.385891][ T2651]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   85.385894][ T2651]  ? ___sys_sendmsg (net/socket.c:2758)
[   85.385897][ T2651]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   85.385899][ T2651]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   85.385902][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385904][ T2651]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.385905][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385907][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385908][ T2651]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   85.385911][ T2651]  ? __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)
[   85.385914][ T2651]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   85.385916][ T2651]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   85.385919][ T2651]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   85.385920][ T2651]  ? nla_get_range_signed (lib/nlattr.c:270)
[   85.385925][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.385928][ T2651]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   85.385933][ T2651]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   85.385938][ T2651]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   85.385940][ T2651]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.385945][ T2651]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   85.385946][ T2651]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   85.385949][ T2651]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   85.385951][ T2651]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   85.385955][ T2651]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   85.385957][ T2651]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   85.385960][ T2651]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.385961][ T2651]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.385966][ T2651]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   85.385967][ T2651]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   85.385971][ T2651]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   85.385975][ T2651]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   85.385978][ T2651]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   85.385984][ T2651]  ? 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))
[   85.385986][ T2651]  ? 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))
[   85.385991][ T2651]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   85.385995][ T2651]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   85.385997][ T2651]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   85.386002][ T2651]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   85.386006][ T2651]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   85.386009][ T2651]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   85.386011][ T2651]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   85.386017][ T2651]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   85.386019][ T2651]  ____sys_sendmsg (net/socket.c:2713)
[   85.386022][ T2651]  ? copy_msghdr_from_user (net/socket.c:2650)
[   85.386024][ T2651]  ? sock_write_iter (net/socket.c:1269)
[   85.386026][ T2651]  ? move_addr_to_kernel (net/socket.c:258)
[   85.386033][ T2651]  ___sys_sendmsg (net/socket.c:2767)
[   85.386036][ T2651]  ? copy_msghdr_from_user (net/socket.c:2619)
[   85.386052][ T2651]  __sys_sendmsg (net/socket.c:2799)
[   85.386055][ T2651]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   85.386061][ T2651]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.386064][ T2651]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   85.386068][ T2651]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   85.386071][ T2651]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   85.386073][ T2651] RIP: 0033:0x7f006e68854e
[   85.386077][ T2651] 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
[   85.386079][ T2651] RSP: 002b:00007ffe6e6ea920 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   85.386081][ T2651] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f006e68854e
[   85.386083][ T2651] RDX: 0000000000000000 RSI: 00007ffe6e6ea9d0 RDI: 0000000000000005
[   85.386084][ T2651] RBP: 00007ffe6e6ea930 R08: 0000000000000000 R09: 0000000000000000
[   85.386084][ T2651] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91823c
[   85.386085][ T2651] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6e6eb0a0
| [   86.862727][ T2723] softirqs last disabled at (23722): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   86.862730][ T2723] Preemption disabled at:
| [   86.862731][ T2723] vprintk_emit (kernel/printk/printk.c:2471)
| [   86.862739][ T2723] Tainted: [W]=WARN
[   86.862740][ T2723] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.862741][ T2723] Call Trace:
[   86.862743][ T2723]  <TASK>
[   86.862745][ T2723]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   86.862751][ T2723]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   86.862753][ T2723]  __might_resched.cold (kernel/sched/core.c:9234)
[   86.862758][ T2723]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   86.862762][ T2723]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   86.862766][ T2723]  __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))
[   86.862768][ T2723]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   86.862775][ T2723]  ? 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)
[   86.862778][ T2723]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   86.862782][ T2723]  put_chars (drivers/char/virtio_console.c:1176)
[   86.862784][ T2723]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   86.862786][ T2723]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   86.862789][ T2723]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   86.862802][ T2723]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   86.862810][ T2723]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   86.862812][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862814][ T2723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.862819][ T2723]  console_emit_next_record (kernel/printk/printk.c:3183)
[   86.862823][ T2723]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   86.862825][ T2723]  ? 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))
[   86.862828][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862830][ T2723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.862834][ T2723]  console_flush_one_record (kernel/printk/printk.c:3268)
[   86.862838][ T2723]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   86.862840][ T2723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.862845][ T2723]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   86.862848][ T2723]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   86.862850][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862852][ T2723]  ? 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)
[   86.862856][ T2723]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   86.862857][ T2723]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   86.862860][ T2723]  vprintk_emit (kernel/printk/printk.c:2479)
[   86.862863][ T2723]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   86.862865][ T2723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.862868][ T2723]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   86.862872][ T2723]  _printk (kernel/printk/printk.c:2504)
[   86.862876][ T2723]  ? snapshot_read.cold (user.c:?)
[   86.862879][ T2723]  ? br_multicast_flood (??:?)
[   86.862883][ T2723]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   86.862884][ T2723]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   86.862886][ T2723]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   86.862890][ T2723]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   86.862894][ T2723]  br_init_port (net/bridge/br_stp_if.c:39)
[   86.862897][ T2723]  new_nbp (net/bridge/br_if.c:449)
[   86.862901][ T2723]  br_add_if (net/bridge/br_if.c:592)
[   86.862903][ T2723]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   86.862907][ T2723]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   86.862913][ T2723]  do_set_master (net/core/rtnetlink.c:3071)
[   86.862917][ T2723]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   86.862920][ T2723]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   86.862923][ T2723]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   86.862925][ T2723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   86.862928][ T2723]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   86.862931][ T2723]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   86.862933][ T2723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   86.862935][ T2723]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   86.862937][ T2723]  ? kasan_save_stack (mm/kasan/common.c:58)
[   86.862940][ T2723]  ? kasan_save_stack (mm/kasan/common.c:57)
[   86.862941][ T2723]  ? kasan_save_track (mm/kasan/common.c:78)
[   86.862942][ T2723]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   86.862945][ T2723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.862947][ T2723]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   86.862949][ T2723]  ? ___sys_sendmsg (net/socket.c:2758)
[   86.862953][ T2723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.862955][ T2723]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   86.862958][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862960][ T2723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.862961][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862962][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862964][ T2723]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   86.862966][ T2723]  ? __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)
[   86.862969][ T2723]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   86.862971][ T2723]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   86.862974][ T2723]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   86.862976][ T2723]  ? nla_get_range_signed (lib/nlattr.c:270)
[   86.862981][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.862983][ T2723]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   86.862988][ T2723]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   86.862994][ T2723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.862996][ T2723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.863000][ T2723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.863002][ T2723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.863004][ T2723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.863006][ T2723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.863010][ T2723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.863012][ T2723]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   86.863015][ T2723]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   86.863016][ T2723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.863021][ T2723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.863023][ T2723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.863027][ T2723]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   86.863030][ T2723]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   86.863033][ T2723]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   86.863039][ T2723]  ? 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))
[   86.863041][ T2723]  ? 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))
[   86.863046][ T2723]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   86.863050][ T2723]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   86.863052][ T2723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.863057][ T2723]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   86.863061][ T2723]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   86.863065][ T2723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.863066][ T2723]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   86.863072][ T2723]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   86.863075][ T2723]  ____sys_sendmsg (net/socket.c:2713)
[   86.863077][ T2723]  ? copy_msghdr_from_user (net/socket.c:2650)
[   86.863079][ T2723]  ? sock_write_iter (net/socket.c:1269)
[   86.863081][ T2723]  ? move_addr_to_kernel (net/socket.c:258)
[   86.863088][ T2723]  ___sys_sendmsg (net/socket.c:2767)
[   86.863091][ T2723]  ? copy_msghdr_from_user (net/socket.c:2619)
[   86.863107][ T2723]  __sys_sendmsg (net/socket.c:2799)
[   86.863110][ T2723]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   86.863117][ T2723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.863120][ T2723]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   86.863123][ T2723]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   86.863126][ T2723]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   86.863128][ T2723] RIP: 0033:0x7fd9c394954e
[   86.863132][ T2723] 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
[   86.863133][ T2723] RSP: 002b:00007ffd79b551f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   86.863136][ T2723] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd9c394954e
[   86.863137][ T2723] RDX: 0000000000000000 RSI: 00007ffd79b552a0 RDI: 0000000000000005
[   86.863138][ T2723] RBP: 00007ffd79b55200 R08: 0000000000000000 R09: 0000000000000000
[   86.863139][ T2723] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91823e
[   86.863140][ T2723] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd79b55970
| [   88.394628][ T2809] softirqs last disabled at (17182): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   88.394631][ T2809] Preemption disabled at:
| [   88.394631][ T2809] vprintk_emit (kernel/printk/printk.c:2471)
| [   88.394640][ T2809] Tainted: [W]=WARN
[   88.394641][ T2809] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.394642][ T2809] Call Trace:
[   88.394644][ T2809]  <TASK>
[   88.394645][ T2809]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   88.394652][ T2809]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   88.394654][ T2809]  __might_resched.cold (kernel/sched/core.c:9234)
[   88.394659][ T2809]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   88.394663][ T2809]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   88.394668][ T2809]  __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))
[   88.394670][ T2809]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.394676][ T2809]  ? 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)
[   88.394679][ T2809]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.394683][ T2809]  put_chars (drivers/char/virtio_console.c:1176)
[   88.394686][ T2809]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   88.394687][ T2809]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   88.394691][ T2809]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   88.394696][ T2809]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   88.394704][ T2809]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   88.394707][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394709][ T2809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.394713][ T2809]  console_emit_next_record (kernel/printk/printk.c:3183)
[   88.394718][ T2809]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   88.394720][ T2809]  ? 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))
[   88.394723][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394725][ T2809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.394729][ T2809]  console_flush_one_record (kernel/printk/printk.c:3268)
[   88.394733][ T2809]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   88.394735][ T2809]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   88.394741][ T2809]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   88.394744][ T2809]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   88.394746][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394748][ T2809]  ? 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)
[   88.394752][ T2809]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   88.394753][ T2809]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   88.394756][ T2809]  vprintk_emit (kernel/printk/printk.c:2479)
[   88.394760][ T2809]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   88.394762][ T2809]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   88.394765][ T2809]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   88.394768][ T2809]  _printk (kernel/printk/printk.c:2504)
[   88.394772][ T2809]  ? snapshot_read.cold (user.c:?)
[   88.394776][ T2809]  ? br_multicast_flood (??:?)
[   88.394780][ T2809]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   88.394781][ T2809]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   88.394783][ T2809]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.394787][ T2809]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   88.394791][ T2809]  br_init_port (net/bridge/br_stp_if.c:39)
[   88.394794][ T2809]  new_nbp (net/bridge/br_if.c:449)
[   88.394804][ T2809]  br_add_if (net/bridge/br_if.c:592)
[   88.394806][ T2809]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   88.394810][ T2809]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   88.394816][ T2809]  do_set_master (net/core/rtnetlink.c:3071)
[   88.394820][ T2809]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   88.394824][ T2809]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   88.394827][ T2809]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   88.394829][ T2809]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   88.394831][ T2809]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   88.394835][ T2809]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   88.394837][ T2809]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   88.394839][ T2809]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   88.394842][ T2809]  ? kasan_save_stack (mm/kasan/common.c:58)
[   88.394844][ T2809]  ? kasan_save_stack (mm/kasan/common.c:57)
[   88.394845][ T2809]  ? kasan_save_track (mm/kasan/common.c:78)
[   88.394847][ T2809]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   88.394849][ T2809]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   88.394851][ T2809]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   88.394854][ T2809]  ? ___sys_sendmsg (net/socket.c:2758)
[   88.394858][ T2809]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   88.394860][ T2809]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   88.394863][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394865][ T2809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.394866][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394867][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394869][ T2809]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   88.394872][ T2809]  ? __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)
[   88.394874][ T2809]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   88.394876][ T2809]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   88.394880][ T2809]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   88.394881][ T2809]  ? nla_get_range_signed (lib/nlattr.c:270)
[   88.394886][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.394888][ T2809]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   88.394894][ T2809]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   88.394899][ T2809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.394901][ T2809]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   88.394906][ T2809]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   88.394908][ T2809]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   88.394910][ T2809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.394912][ T2809]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   88.394916][ T2809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.394918][ T2809]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.394921][ T2809]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.394922][ T2809]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   88.394927][ T2809]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   88.394929][ T2809]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   88.394932][ T2809]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.394936][ T2809]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.394939][ T2809]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   88.394945][ T2809]  ? 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))
[   88.394947][ T2809]  ? 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))
[   88.394952][ T2809]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.394956][ T2809]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   88.394958][ T2809]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   88.394963][ T2809]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.394967][ T2809]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   88.394971][ T2809]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   88.394973][ T2809]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   88.394978][ T2809]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   88.394981][ T2809]  ____sys_sendmsg (net/socket.c:2713)
[   88.394983][ T2809]  ? copy_msghdr_from_user (net/socket.c:2650)
[   88.394987][ T2809]  ? sock_write_iter (net/socket.c:1269)
[   88.394989][ T2809]  ? move_addr_to_kernel (net/socket.c:258)
[   88.394997][ T2809]  ___sys_sendmsg (net/socket.c:2767)
[   88.395000][ T2809]  ? copy_msghdr_from_user (net/socket.c:2619)
[   88.395016][ T2809]  __sys_sendmsg (net/socket.c:2799)
[   88.395019][ T2809]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   88.395025][ T2809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.395028][ T2809]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.395031][ T2809]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   88.395034][ T2809]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.395036][ T2809] RIP: 0033:0x7fecd4f6f54e
[   88.395040][ T2809] 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
[   88.395042][ T2809] RSP: 002b:00007ffefecb1d50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   88.395045][ T2809] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fecd4f6f54e
[   88.395046][ T2809] RDX: 0000000000000000 RSI: 00007ffefecb1e00 RDI: 0000000000000005
[   88.395047][ T2809] RBP: 00007ffefecb1d60 R08: 0000000000000000 R09: 0000000000000000
[   88.395048][ T2809] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91823f
[   88.395049][ T2809] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffefecb24d0
| [   89.852550][   T12] softirqs last disabled at (1031261): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [   89.852552][   T12] Preemption disabled at:
| [   89.852553][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   89.852562][   T12] Tainted: [W]=WARN
[   89.852563][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   89.852565][   T12] Workqueue: netns cleanup_net
[   89.852568][   T12] Call Trace:
[   89.852570][   T12]  <TASK>
[   89.852572][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   89.852578][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   89.852580][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   89.852585][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   89.852589][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   89.852594][   T12]  __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))
[   89.852596][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   89.852603][   T12]  ? 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)
[   89.852606][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   89.852609][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   89.852612][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   89.852613][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   89.852617][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   89.852620][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   89.852626][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   89.852630][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   89.852636][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   89.852639][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.852644][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   89.852648][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   89.852650][   T12]  ? 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))
[   89.852654][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.852656][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   89.852660][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   89.852665][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   89.852667][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   89.852672][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   89.852675][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   89.852677][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.852679][   T12]  ? 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)
[   89.852683][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   89.852685][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   89.852688][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   89.852692][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   89.852693][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   89.852695][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   89.852697][   T12]  ? kthread (kernel/kthread.c:436)
[   89.852699][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   89.852702][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   89.852707][   T12]  _printk (kernel/printk/printk.c:2504)
[   89.852711][   T12]  ? snapshot_read.cold (user.c:?)
[   89.852716][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   89.852720][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   89.852724][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   89.852727][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   89.852732][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.852734][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   89.852736][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   89.852738][   T12]  ? 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)
[   89.852741][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   89.852746][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   89.852750][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   89.852756][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   89.852760][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   89.852764][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   89.852768][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   89.852772][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   89.852773][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   89.852777][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   89.852782][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   89.852785][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   89.852789][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   89.852791][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   89.852795][   T12]  process_one_work (kernel/workqueue.c:3387)
[   89.852802][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   89.852809][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   89.852818][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   89.852825][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   89.852828][   T12]  kthread (kernel/kthread.c:436)
[   89.852830][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   89.852833][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   89.852836][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   89.852839][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   89.852843][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   89.852847][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   89.852850][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   91.542289][ T2941] softirqs last disabled at (17044): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   91.542293][ T2941] Preemption disabled at:
| [   91.542294][ T2941] vprintk_emit (kernel/printk/printk.c:2471)
| [   91.542306][ T2941] Tainted: [W]=WARN
[   91.542308][ T2941] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   91.542310][ T2941] Call Trace:
[   91.542312][ T2941]  <TASK>
[   91.542314][ T2941]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   91.542323][ T2941]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   91.542325][ T2941]  __might_resched.cold (kernel/sched/core.c:9234)
[   91.542332][ T2941]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   91.542339][ T2941]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   91.542348][ T2941]  __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))
[   91.542352][ T2941]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   91.542362][ T2941]  ? 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)
[   91.542366][ T2941]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   91.542372][ T2941]  put_chars (drivers/char/virtio_console.c:1176)
[   91.542376][ T2941]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   91.542388][ T2941]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   91.542401][ T2941]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   91.542406][ T2941]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   91.542414][ T2941]  console_emit_next_record (kernel/printk/printk.c:3183)
[   91.542421][ T2941]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   91.542424][ T2941]  ? 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))
[   91.542430][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542434][ T2941]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   91.542441][ T2941]  console_flush_one_record (kernel/printk/printk.c:3268)
[   91.542449][ T2941]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   91.542452][ T2941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.542462][ T2941]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   91.542466][ T2941]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   91.542469][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542472][ T2941]  ? 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)
[   91.542479][ T2941]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   91.542482][ T2941]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   91.542487][ T2941]  vprintk_emit (kernel/printk/printk.c:2479)
[   91.542493][ T2941]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   91.542497][ T2941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.542500][ T2941]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   91.542503][ T2941]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   91.542510][ T2941]  _printk (kernel/printk/printk.c:2504)
[   91.542515][ T2941]  ? snapshot_read.cold (user.c:?)
[   91.542517][ T2941]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   91.542522][ T2941]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   91.542526][ T2941]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   91.542530][ T2941]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   91.542535][ T2941]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   91.542540][ T2941]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   91.542544][ T2941]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   91.542549][ T2941]  ? netdev_notice (net/core/dev.c:13194)
[   91.542553][ T2941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   91.542559][ T2941]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   91.542563][ T2941]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   91.542569][ T2941]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   91.542573][ T2941]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   91.542578][ T2941]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   91.542586][ T2941]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   91.542591][ T2941]  ? __kernel_text_address (kernel/extable.c:79)
[   91.542595][ T2941]  ? write_profile (profile.c:?)
[   91.542601][ T2941]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   91.542611][ T2941]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   91.542617][ T2941]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   91.542620][ T2941]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   91.542623][ T2941]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   91.542626][ T2941]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   91.542631][ T2941]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   91.542634][ T2941]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   91.542637][ T2941]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   91.542640][ T2941]  ? kasan_save_stack (mm/kasan/common.c:58)
[   91.542643][ T2941]  ? kasan_save_stack (mm/kasan/common.c:57)
[   91.542644][ T2941]  ? kasan_save_track (mm/kasan/common.c:78)
[   91.542646][ T2941]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   91.542649][ T2941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.542652][ T2941]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   91.542656][ T2941]  ? ___sys_sendmsg (net/socket.c:2758)
[   91.542661][ T2941]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   91.542664][ T2941]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   91.542668][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542670][ T2941]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   91.542672][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542674][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542676][ T2941]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   91.542679][ T2941]  ? __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)
[   91.542683][ T2941]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   91.542685][ T2941]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   91.542691][ T2941]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   91.542692][ T2941]  ? nla_get_range_signed (lib/nlattr.c:270)
[   91.542699][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542702][ T2941]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   91.542710][ T2941]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   91.542719][ T2941]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   91.542721][ T2941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.542728][ T2941]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   91.542731][ T2941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   91.542734][ T2941]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   91.542736][ T2941]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   91.542742][ T2941]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   91.542745][ T2941]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   91.542750][ T2941]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   91.542752][ T2941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.542758][ T2941]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   91.542761][ T2941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   91.542766][ T2941]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   91.542770][ T2941]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   91.542774][ T2941]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   91.542784][ T2941]  ? 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))
[   91.542787][ T2941]  ? 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))
[   91.542793][ T2941]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   91.542799][ T2941]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   91.542803][ T2941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   91.542815][ T2941]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   91.542821][ T2941]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   91.542827][ T2941]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   91.542829][ T2941]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   91.542836][ T2941]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   91.542840][ T2941]  ____sys_sendmsg (net/socket.c:2713)
[   91.542843][ T2941]  ? copy_msghdr_from_user (net/socket.c:2650)
[   91.542847][ T2941]  ? sock_write_iter (net/socket.c:1269)
[   91.542849][ T2941]  ? move_addr_to_kernel (net/socket.c:258)
[   91.542860][ T2941]  ___sys_sendmsg (net/socket.c:2767)
[   91.542864][ T2941]  ? copy_msghdr_from_user (net/socket.c:2619)
[   91.542891][ T2941]  __sys_sendmsg (net/socket.c:2799)
[   91.542895][ T2941]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   91.542908][ T2941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.542914][ T2941]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   91.542918][ T2941]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   91.542922][ T2941]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   91.542926][ T2941] RIP: 0033:0x7efe7129854e
[   91.542931][ T2941] 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
[   91.542933][ T2941] RSP: 002b:00007ffc32d29020 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   91.542936][ T2941] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efe7129854e
[   91.542938][ T2941] RDX: 0000000000000000 RSI: 00007ffc32d290d0 RDI: 0000000000000005
[   91.542940][ T2941] RBP: 00007ffc32d29030 R08: 0000000000000000 R09: 0000000000000000
[   91.542941][ T2941] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918242
[   91.542942][ T2941] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc32d297a0
| [  104.141971][ T3242] softirqs last disabled at (24102): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  104.141973][ T3242] Preemption disabled at:
| [  104.141974][ T3242] vprintk_emit (kernel/printk/printk.c:2471)
| [  104.141982][ T3242] Tainted: [W]=WARN
[  104.141983][ T3242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  104.141985][ T3242] Call Trace:
[  104.141987][ T3242]  <TASK>
[  104.141988][ T3242]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  104.141995][ T3242]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  104.141996][ T3242]  __might_resched.cold (kernel/sched/core.c:9234)
[  104.142001][ T3242]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  104.142005][ T3242]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  104.142009][ T3242]  __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))
[  104.142011][ T3242]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.142018][ T3242]  ? 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)
[  104.142021][ T3242]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.142025][ T3242]  put_chars (drivers/char/virtio_console.c:1176)
[  104.142028][ T3242]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  104.142029][ T3242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.142033][ T3242]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.142038][ T3242]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  104.142046][ T3242]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  104.142049][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142051][ T3242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.142055][ T3242]  console_emit_next_record (kernel/printk/printk.c:3183)
[  104.142060][ T3242]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  104.142062][ T3242]  ? 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))
[  104.142065][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142067][ T3242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.142071][ T3242]  console_flush_one_record (kernel/printk/printk.c:3268)
[  104.142075][ T3242]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  104.142077][ T3242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.142083][ T3242]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  104.142086][ T3242]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  104.142088][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142090][ T3242]  ? 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)
[  104.142094][ T3242]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  104.142096][ T3242]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  104.142099][ T3242]  vprintk_emit (kernel/printk/printk.c:2479)
[  104.142102][ T3242]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  104.142104][ T3242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.142107][ T3242]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  104.142111][ T3242]  _printk (kernel/printk/printk.c:2504)
[  104.142115][ T3242]  ? snapshot_read.cold (user.c:?)
[  104.142118][ T3242]  ? br_multicast_flood (??:?)
[  104.142122][ T3242]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.142123][ T3242]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.142124][ T3242]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.142129][ T3242]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  104.142134][ T3242]  br_init_port (net/bridge/br_stp_if.c:39)
[  104.142136][ T3242]  new_nbp (net/bridge/br_if.c:449)
[  104.142141][ T3242]  br_add_if (net/bridge/br_if.c:592)
[  104.142143][ T3242]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  104.142147][ T3242]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  104.142153][ T3242]  do_set_master (net/core/rtnetlink.c:3071)
[  104.142157][ T3242]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.142160][ T3242]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  104.142164][ T3242]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  104.142165][ T3242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  104.142168][ T3242]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  104.142172][ T3242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.142174][ T3242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  104.142175][ T3242]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.142178][ T3242]  ? kasan_save_stack (mm/kasan/common.c:58)
[  104.142180][ T3242]  ? kasan_save_stack (mm/kasan/common.c:57)
[  104.142182][ T3242]  ? kasan_save_track (mm/kasan/common.c:78)
[  104.142183][ T3242]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  104.142185][ T3242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.142187][ T3242]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  104.142190][ T3242]  ? ___sys_sendmsg (net/socket.c:2758)
[  104.142194][ T3242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.142196][ T3242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.142199][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142201][ T3242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.142202][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142204][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142205][ T3242]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  104.142208][ T3242]  ? __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)
[  104.142210][ T3242]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  104.142212][ T3242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.142216][ T3242]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  104.142217][ T3242]  ? nla_get_range_signed (lib/nlattr.c:270)
[  104.142223][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142225][ T3242]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  104.142231][ T3242]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.142237][ T3242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.142238][ T3242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.142243][ T3242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.142245][ T3242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.142248][ T3242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.142250][ T3242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.142254][ T3242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.142256][ T3242]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.142259][ T3242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.142261][ T3242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.142266][ T3242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.142267][ T3242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.142271][ T3242]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  104.142275][ T3242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.142278][ T3242]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  104.142285][ T3242]  ? 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))
[  104.142287][ T3242]  ? 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))
[  104.142292][ T3242]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  104.142296][ T3242]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  104.142298][ T3242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.142303][ T3242]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  104.142307][ T3242]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  104.142311][ T3242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.142313][ T3242]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  104.142319][ T3242]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  104.142322][ T3242]  ____sys_sendmsg (net/socket.c:2713)
[  104.142324][ T3242]  ? copy_msghdr_from_user (net/socket.c:2650)
[  104.142326][ T3242]  ? sock_write_iter (net/socket.c:1269)
[  104.142328][ T3242]  ? move_addr_to_kernel (net/socket.c:258)
[  104.142336][ T3242]  ___sys_sendmsg (net/socket.c:2767)
[  104.142339][ T3242]  ? copy_msghdr_from_user (net/socket.c:2619)
[  104.142359][ T3242]  __sys_sendmsg (net/socket.c:2799)
[  104.142362][ T3242]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  104.142369][ T3242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.142372][ T3242]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  104.142375][ T3242]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  104.142378][ T3242]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  104.142380][ T3242] RIP: 0033:0x7f169a02c54e
[  104.142384][ T3242] 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
[  104.142386][ T3242] RSP: 002b:00007ffeb8cc4c50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  104.142389][ T3242] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f169a02c54e
[  104.142390][ T3242] RDX: 0000000000000000 RSI: 00007ffeb8cc4d00 RDI: 0000000000000005
[  104.142391][ T3242] RBP: 00007ffeb8cc4c60 R08: 0000000000000000 R09: 0000000000000000
[  104.142392][ T3242] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91824f
[  104.142393][ T3242] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb8cc53d0
| [  105.578487][ T3331] softirqs last disabled at (21010): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  105.578489][ T3331] Preemption disabled at:
| [  105.578490][ T3331] vprintk_emit (kernel/printk/printk.c:2471)
| [  105.578499][ T3331] Tainted: [W]=WARN
[  105.578500][ T3331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  105.578502][ T3331] Call Trace:
[  105.578503][ T3331]  <TASK>
[  105.578505][ T3331]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  105.578511][ T3331]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  105.578512][ T3331]  __might_resched.cold (kernel/sched/core.c:9234)
[  105.578517][ T3331]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  105.578522][ T3331]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  105.578526][ T3331]  __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))
[  105.578528][ T3331]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.578535][ T3331]  ? 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)
[  105.578538][ T3331]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.578542][ T3331]  put_chars (drivers/char/virtio_console.c:1176)
[  105.578544][ T3331]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  105.578545][ T3331]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.578549][ T3331]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.578555][ T3331]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  105.578563][ T3331]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  105.578565][ T3331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.578567][ T3331]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.578572][ T3331]  console_emit_next_record (kernel/printk/printk.c:3183)
[  105.578576][ T3331]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  105.578578][ T3331]  ? 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))
[  105.578581][ T3331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.578583][ T3331]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.578587][ T3331]  console_flush_one_record (kernel/printk/printk.c:3268)
[  105.578591][ T3331]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  105.578593][ T3331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.578599][ T3331]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  105.578602][ T3331]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  105.578604][ T3331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.578606][ T3331]  ? 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)
[  105.578609][ T3331]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  105.578611][ T3331]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  105.578614][ T3331]  vprintk_emit (kernel/printk/printk.c:2479)
[  105.578617][ T3331]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  105.578619][ T3331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.578622][ T3331]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  105.578626][ T3331]  _printk (kernel/printk/printk.c:2504)
[  105.578630][ T3331]  ? snapshot_read.cold (user.c:?)
[  105.578633][ T3331]  ? br_multicast_flood (??:?)
[  105.578637][ T3331]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.578638][ T3331]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.578640][ T3331]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.578644][ T3331]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  105.578648][ T3331]  br_init_port (net/bridge/br_stp_if.c:39)
[  105.578651][ T3331]  new_nbp (net/bridge/br_if.c:449)
[  105.578655][ T3331]  br_add_if (net/bridge/br_if.c:592)
[  105.578657][ T3331]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.578659][ T3331]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  105.578662][ T3331]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.578667][ T3331]  do_set_master (net/core/rtnetlink.c:3071)
[  105.578668][ T3331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.578672][ T3331]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.578675][ T3331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.578678][ T3331]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  105.578679][ T3331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.578682][ T3331]  ? clockevents_program_event (kernel/time/clockevents.c:363)
[  105.578687][ T3331]  ? kvm_clock_get_cycles (arch/x86/kernel/kvmclock.c:80 (discriminator 1) arch/x86/kernel/kvmclock.c:87 (discriminator 1))
[  105.578689][ T3331]  ? ktime_get (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:1004)
[  105.578694][ T3331]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[  105.578697][ T3331]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.578700][ T3331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.578703][ T3331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.578706][ T3331]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  105.578709][ T3331]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  105.578712][ T3331]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[  105.578714][ T3331]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[  105.578716][ T3331]  ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4527)
[  105.578718][ T3331]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[  105.578719][ T3331]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.578726][ T3331]  ? __rtnl_newlink (net/core/rtnetlink.c:4061)
[  105.578728][ T3331]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  105.578734][ T3331]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.578739][ T3331]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.578741][ T3331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.578746][ T3331]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.578748][ T3331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.578750][ T3331]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.578752][ T3331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.578756][ T3331]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.578758][ T3331]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.578761][ T3331]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.578763][ T3331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.578767][ T3331]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.578769][ T3331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.578773][ T3331]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  105.578776][ T3331]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.578779][ T3331]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  105.578786][ T3331]  ? 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))
[  105.578788][ T3331]  ? 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))
[  105.578793][ T3331]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  105.578797][ T3331]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  105.578800][ T3331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.578804][ T3331]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  105.578808][ T3331]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  105.578812][ T3331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.578814][ T3331]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  105.578819][ T3331]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  105.578823][ T3331]  ____sys_sendmsg (net/socket.c:2713)
[  105.578826][ T3331]  ? copy_msghdr_from_user (net/socket.c:2650)
[  105.578828][ T3331]  ? sock_write_iter (net/socket.c:1269)
[  105.578830][ T3331]  ? move_addr_to_kernel (net/socket.c:258)
[  105.578837][ T3331]  ___sys_sendmsg (net/socket.c:2767)
[  105.578841][ T3331]  ? copy_msghdr_from_user (net/socket.c:2619)
[  105.578857][ T3331]  __sys_sendmsg (net/socket.c:2799)
[  105.578861][ T3331]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  105.578874][ T3331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.578877][ T3331]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  105.578880][ T3331]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  105.578883][ T3331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  105.578885][ T3331] RIP: 0033:0x7fc3e643754e
[  105.578889][ T3331] 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
[  105.578891][ T3331] RSP: 002b:00007ffccac000e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  105.578894][ T3331] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc3e643754e
[  105.578895][ T3331] RDX: 0000000000000000 RSI: 00007ffccac00190 RDI: 0000000000000005
[  105.578896][ T3331] RBP: 00007ffccac000f0 R08: 0000000000000000 R09: 0000000000000000
[  105.578897][ T3331] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918250
[  105.578898][ T3331] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffccac00860
| [  107.247262][ T3406] softirqs last disabled at (23110): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  107.247265][ T3406] Preemption disabled at:
| [  107.247265][ T3406] vprintk_emit (kernel/printk/printk.c:2471)
| [  107.247274][ T3406] Tainted: [W]=WARN
[  107.247275][ T3406] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  107.247276][ T3406] Call Trace:
[  107.247278][ T3406]  <TASK>
[  107.247279][ T3406]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  107.247286][ T3406]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  107.247287][ T3406]  __might_resched.cold (kernel/sched/core.c:9234)
[  107.247292][ T3406]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  107.247296][ T3406]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  107.247300][ T3406]  __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))
[  107.247302][ T3406]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  107.247310][ T3406]  ? 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)
[  107.247314][ T3406]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  107.247319][ T3406]  put_chars (drivers/char/virtio_console.c:1176)
[  107.247321][ T3406]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  107.247322][ T3406]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.247326][ T3406]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  107.247332][ T3406]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  107.247339][ T3406]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  107.247342][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247346][ T3406]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.247350][ T3406]  console_emit_next_record (kernel/printk/printk.c:3183)
[  107.247354][ T3406]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  107.247356][ T3406]  ? 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))
[  107.247359][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247361][ T3406]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.247365][ T3406]  console_flush_one_record (kernel/printk/printk.c:3268)
[  107.247369][ T3406]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  107.247371][ T3406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.247377][ T3406]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  107.247380][ T3406]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  107.247382][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247383][ T3406]  ? 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)
[  107.247387][ T3406]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  107.247389][ T3406]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  107.247392][ T3406]  vprintk_emit (kernel/printk/printk.c:2479)
[  107.247395][ T3406]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  107.247397][ T3406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.247399][ T3406]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  107.247403][ T3406]  _printk (kernel/printk/printk.c:2504)
[  107.247407][ T3406]  ? snapshot_read.cold (user.c:?)
[  107.247410][ T3406]  ? br_multicast_flood (??:?)
[  107.247414][ T3406]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  107.247416][ T3406]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  107.247417][ T3406]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  107.247422][ T3406]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  107.247426][ T3406]  br_init_port (net/bridge/br_stp_if.c:39)
[  107.247428][ T3406]  new_nbp (net/bridge/br_if.c:449)
[  107.247432][ T3406]  br_add_if (net/bridge/br_if.c:592)
[  107.247435][ T3406]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  107.247438][ T3406]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  107.247444][ T3406]  do_set_master (net/core/rtnetlink.c:3071)
[  107.247450][ T3406]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  107.247455][ T3406]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  107.247459][ T3406]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  107.247460][ T3406]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  107.247463][ T3406]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  107.247466][ T3406]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.247468][ T3406]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  107.247470][ T3406]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  107.247473][ T3406]  ? kasan_save_stack (mm/kasan/common.c:58)
[  107.247475][ T3406]  ? kasan_save_stack (mm/kasan/common.c:57)
[  107.247476][ T3406]  ? kasan_save_track (mm/kasan/common.c:78)
[  107.247478][ T3406]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  107.247480][ T3406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.247482][ T3406]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  107.247485][ T3406]  ? ___sys_sendmsg (net/socket.c:2758)
[  107.247489][ T3406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.247491][ T3406]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  107.247493][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247495][ T3406]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.247497][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247498][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247499][ T3406]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  107.247502][ T3406]  ? __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)
[  107.247504][ T3406]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  107.247506][ T3406]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  107.247510][ T3406]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  107.247511][ T3406]  ? nla_get_range_signed (lib/nlattr.c:270)
[  107.247516][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247518][ T3406]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  107.247523][ T3406]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  107.247528][ T3406]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.247530][ T3406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.247535][ T3406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.247537][ T3406]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.247539][ T3406]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.247541][ T3406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.247545][ T3406]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.247547][ T3406]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  107.247550][ T3406]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  107.247551][ T3406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.247556][ T3406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.247558][ T3406]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.247561][ T3406]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  107.247564][ T3406]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  107.247567][ T3406]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  107.247574][ T3406]  ? 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))
[  107.247576][ T3406]  ? 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))
[  107.247580][ T3406]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  107.247584][ T3406]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  107.247588][ T3406]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.247595][ T3406]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  107.247599][ T3406]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  107.247603][ T3406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.247605][ T3406]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  107.247610][ T3406]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  107.247613][ T3406]  ____sys_sendmsg (net/socket.c:2713)
[  107.247615][ T3406]  ? copy_msghdr_from_user (net/socket.c:2650)
[  107.247618][ T3406]  ? sock_write_iter (net/socket.c:1269)
[  107.247619][ T3406]  ? move_addr_to_kernel (net/socket.c:258)
[  107.247627][ T3406]  ___sys_sendmsg (net/socket.c:2767)
[  107.247629][ T3406]  ? copy_msghdr_from_user (net/socket.c:2619)
[  107.247645][ T3406]  __sys_sendmsg (net/socket.c:2799)
[  107.247648][ T3406]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  107.247654][ T3406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.247657][ T3406]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  107.247660][ T3406]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  107.247663][ T3406]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  107.247665][ T3406] RIP: 0033:0x7fcebbac054e
[  107.247669][ T3406] 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
[  107.247671][ T3406] RSP: 002b:00007ffe486852f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  107.247674][ T3406] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcebbac054e
[  107.247676][ T3406] RDX: 0000000000000000 RSI: 00007ffe486853a0 RDI: 0000000000000005
[  107.247677][ T3406] RBP: 00007ffe48685300 R08: 0000000000000000 R09: 0000000000000000
[  107.247677][ T3406] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918252
[  107.247678][ T3406] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe48685a70
| [  108.727302][ T3486] softirqs last disabled at (17286): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  108.727304][ T3486] Preemption disabled at:
| [  108.727305][ T3486] vprintk_emit (kernel/printk/printk.c:2471)
| [  108.727314][ T3486] Tainted: [W]=WARN
[  108.727315][ T3486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  108.727317][ T3486] Call Trace:
[  108.727318][ T3486]  <TASK>
[  108.727320][ T3486]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  108.727326][ T3486]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  108.727328][ T3486]  __might_resched.cold (kernel/sched/core.c:9234)
[  108.727333][ T3486]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  108.727337][ T3486]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  108.727342][ T3486]  __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))
[  108.727346][ T3486]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  108.727353][ T3486]  ? 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)
[  108.727356][ T3486]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  108.727360][ T3486]  put_chars (drivers/char/virtio_console.c:1176)
[  108.727363][ T3486]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  108.727364][ T3486]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  108.727368][ T3486]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  108.727374][ T3486]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  108.727382][ T3486]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  108.727385][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727387][ T3486]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  108.727391][ T3486]  console_emit_next_record (kernel/printk/printk.c:3183)
[  108.727395][ T3486]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  108.727397][ T3486]  ? 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))
[  108.727401][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727403][ T3486]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  108.727407][ T3486]  console_flush_one_record (kernel/printk/printk.c:3268)
[  108.727411][ T3486]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  108.727413][ T3486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.727419][ T3486]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  108.727422][ T3486]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  108.727424][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727426][ T3486]  ? 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)
[  108.727430][ T3486]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  108.727432][ T3486]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  108.727435][ T3486]  vprintk_emit (kernel/printk/printk.c:2479)
[  108.727438][ T3486]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  108.727440][ T3486]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  108.727445][ T3486]  _printk (kernel/printk/printk.c:2504)
[  108.727449][ T3486]  ? snapshot_read.cold (user.c:?)
[  108.727453][ T3486]  ? br_multicast_flood (??:?)
[  108.727457][ T3486]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  108.727458][ T3486]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  108.727460][ T3486]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  108.727464][ T3486]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  108.727469][ T3486]  br_init_port (net/bridge/br_stp_if.c:39)
[  108.727472][ T3486]  new_nbp (net/bridge/br_if.c:449)
[  108.727476][ T3486]  br_add_if (net/bridge/br_if.c:592)
[  108.727479][ T3486]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  108.727483][ T3486]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  108.727488][ T3486]  do_set_master (net/core/rtnetlink.c:3071)
[  108.727492][ T3486]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  108.727496][ T3486]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  108.727500][ T3486]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  108.727501][ T3486]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  108.727504][ T3486]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  108.727508][ T3486]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  108.727510][ T3486]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  108.727512][ T3486]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  108.727514][ T3486]  ? kasan_save_stack (mm/kasan/common.c:58)
[  108.727517][ T3486]  ? kasan_save_stack (mm/kasan/common.c:57)
[  108.727518][ T3486]  ? kasan_save_track (mm/kasan/common.c:78)
[  108.727519][ T3486]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  108.727522][ T3486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.727524][ T3486]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  108.727527][ T3486]  ? ___sys_sendmsg (net/socket.c:2758)
[  108.727531][ T3486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  108.727533][ T3486]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  108.727535][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727537][ T3486]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  108.727539][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727540][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727542][ T3486]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  108.727545][ T3486]  ? __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)
[  108.727547][ T3486]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  108.727549][ T3486]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  108.727553][ T3486]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  108.727554][ T3486]  ? nla_get_range_signed (lib/nlattr.c:270)
[  108.727559][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727562][ T3486]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  108.727567][ T3486]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  108.727573][ T3486]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  108.727575][ T3486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.727580][ T3486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  108.727581][ T3486]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  108.727584][ T3486]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  108.727586][ T3486]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  108.727590][ T3486]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  108.727592][ T3486]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  108.727595][ T3486]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  108.727597][ T3486]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  108.727601][ T3486]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  108.727603][ T3486]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  108.727607][ T3486]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  108.727610][ T3486]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  108.727613][ T3486]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  108.727620][ T3486]  ? 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))
[  108.727622][ T3486]  ? 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))
[  108.727627][ T3486]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  108.727631][ T3486]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  108.727634][ T3486]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  108.727638][ T3486]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  108.727643][ T3486]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  108.727647][ T3486]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  108.727648][ T3486]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  108.727654][ T3486]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  108.727657][ T3486]  ____sys_sendmsg (net/socket.c:2713)
[  108.727659][ T3486]  ? copy_msghdr_from_user (net/socket.c:2650)
[  108.727662][ T3486]  ? sock_write_iter (net/socket.c:1269)
[  108.727663][ T3486]  ? move_addr_to_kernel (net/socket.c:258)
[  108.727671][ T3486]  ___sys_sendmsg (net/socket.c:2767)
[  108.727674][ T3486]  ? copy_msghdr_from_user (net/socket.c:2619)
[  108.727691][ T3486]  __sys_sendmsg (net/socket.c:2799)
[  108.727694][ T3486]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  108.727701][ T3486]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  108.727704][ T3486]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  108.727707][ T3486]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  108.727710][ T3486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  108.727713][ T3486] RIP: 0033:0x7f45e852654e
[  108.727716][ T3486] 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
[  108.727718][ T3486] RSP: 002b:00007ffe9f72cb70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  108.727721][ T3486] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f45e852654e
[  108.727723][ T3486] RDX: 0000000000000000 RSI: 00007ffe9f72cc20 RDI: 0000000000000005
[  108.727724][ T3486] RBP: 00007ffe9f72cb80 R08: 0000000000000000 R09: 0000000000000000
[  108.727725][ T3486] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918254
[  108.727726][ T3486] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9f72d2f0
| [  109.757994][ T3536] softirqs last disabled at (30196): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119)
| [  109.757996][ T3536] Preemption disabled at:
| [  109.757997][ T3536] 0x0
| [  109.758007][ T3536] Tainted: [W]=WARN
[  109.758008][ T3536] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  109.758010][ T3536] Call Trace:
[  109.758012][ T3536]  <TASK>
[  109.758013][ T3536]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  109.758020][ T3536]  __might_resched.cold (kernel/sched/core.c:9234)
[  109.758025][ T3536]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  109.758029][ T3536]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  109.758034][ T3536]  __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))
[  109.758036][ T3536]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  109.758042][ T3536]  ? 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)
[  109.758045][ T3536]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  109.758049][ T3536]  put_chars (drivers/char/virtio_console.c:1176)
[  109.758051][ T3536]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  109.758053][ T3536]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  109.758056][ T3536]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  109.758062][ T3536]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  109.758072][ T3536]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  109.758075][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758077][ T3536]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.758081][ T3536]  console_emit_next_record (kernel/printk/printk.c:3183)
[  109.758085][ T3536]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  109.758087][ T3536]  ? 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))
[  109.758090][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758092][ T3536]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.758096][ T3536]  console_flush_one_record (kernel/printk/printk.c:3268)
[  109.758101][ T3536]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  109.758103][ T3536]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.758108][ T3536]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  109.758111][ T3536]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  109.758113][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758115][ T3536]  ? 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)
[  109.758119][ T3536]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  109.758121][ T3536]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  109.758123][ T3536]  vprintk_emit (kernel/printk/printk.c:2479)
[  109.758127][ T3536]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  109.758129][ T3536]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  109.758131][ T3536]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  109.758136][ T3536]  _printk (kernel/printk/printk.c:2504)
[  109.758139][ T3536]  ? snapshot_read.cold (user.c:?)
[  109.758145][ T3536]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.758148][ T3536]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  109.758153][ T3536]  br_init_port (net/bridge/br_stp_if.c:39)
[  109.758156][ T3536]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[  109.758158][ T3536]  br_device_event (net/bridge/br.c:120)
[  109.758161][ T3536]  ? packet_sendmsg_spkt (af_packet.c:?)
[  109.758163][ T3536]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[  109.758170][ T3536]  notifier_call_chain (kernel/notifier.c:85)
[  109.758176][ T3536]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[  109.758182][ T3536]  ? netif_change_name (net/core/dev.c:1517)
[  109.758185][ T3536]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[  109.758188][ T3536]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  109.758191][ T3536]  ? __kernel_text_address (kernel/extable.c:79)
[  109.758193][ T3536]  ? write_profile (profile.c:?)
[  109.758198][ T3536]  netif_change_flags (net/core/dev.c:9882)
[  109.758202][ T3536]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  109.758206][ T3536]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  109.758208][ T3536]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  109.758209][ T3536]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  109.758211][ T3536]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  109.758215][ T3536]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  109.758217][ T3536]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  109.758219][ T3536]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  109.758221][ T3536]  ? kasan_save_stack (mm/kasan/common.c:58)
[  109.758224][ T3536]  ? kasan_save_stack (mm/kasan/common.c:57)
[  109.758225][ T3536]  ? kasan_save_track (mm/kasan/common.c:78)
[  109.758226][ T3536]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  109.758228][ T3536]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.758230][ T3536]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  109.758233][ T3536]  ? ___sys_sendmsg (net/socket.c:2758)
[  109.758237][ T3536]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.758239][ T3536]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  109.758242][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758244][ T3536]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  109.758245][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758246][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758248][ T3536]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  109.758250][ T3536]  ? __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)
[  109.758253][ T3536]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  109.758255][ T3536]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  109.758259][ T3536]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  109.758262][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758264][ T3536]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  109.758270][ T3536]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  109.758275][ T3536]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.758277][ T3536]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.758282][ T3536]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.758284][ T3536]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  109.758286][ T3536]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.758288][ T3536]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  109.758292][ T3536]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  109.758294][ T3536]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  109.758297][ T3536]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  109.758299][ T3536]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  109.758303][ T3536]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  109.758305][ T3536]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  109.758309][ T3536]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  109.758311][ T3536]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  109.758314][ T3536]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  109.758320][ T3536]  ? 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))
[  109.758322][ T3536]  ? 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))
[  109.758327][ T3536]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  109.758331][ T3536]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  109.758334][ T3536]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  109.758338][ T3536]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  109.758342][ T3536]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  109.758346][ T3536]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  109.758348][ T3536]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  109.758354][ T3536]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  109.758357][ T3536]  ____sys_sendmsg (net/socket.c:2713)
[  109.758359][ T3536]  ? copy_msghdr_from_user (net/socket.c:2650)
[  109.758361][ T3536]  ? sock_write_iter (net/socket.c:1269)
[  109.758363][ T3536]  ? move_addr_to_kernel (net/socket.c:258)
[  109.758371][ T3536]  ___sys_sendmsg (net/socket.c:2767)
[  109.758374][ T3536]  ? copy_msghdr_from_user (net/socket.c:2619)
[  109.758390][ T3536]  __sys_sendmsg (net/socket.c:2799)
[  109.758393][ T3536]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  109.758400][ T3536]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  109.758403][ T3536]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  109.758406][ T3536]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  109.758409][ T3536]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  109.758411][ T3536] RIP: 0033:0x7fd8ecd7854e
[  109.758413][ T3536] 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
[  109.758415][ T3536] RSP: 002b:00007ffff946af80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  109.758418][ T3536] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd8ecd7854e
[  109.758419][ T3536] RDX: 0000000000000000 RSI: 00007ffff946b030 RDI: 0000000000000005
[  109.758420][ T3536] RBP: 00007ffff946af90 R08: 0000000000000000 R09: 0000000000000000
[  109.758421][ T3536] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918255
[  109.758422][ T3536] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff946b700
| [  110.797121][ T3580] softirqs last disabled at (29766): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  110.797124][ T3580] Preemption disabled at:
| [  110.797125][ T3580] vprintk_emit (kernel/printk/printk.c:2471)
| [  110.797133][ T3580] Tainted: [W]=WARN
[  110.797134][ T3580] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  110.797136][ T3580] Call Trace:
[  110.797137][ T3580]  <TASK>
[  110.797139][ T3580]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  110.797145][ T3580]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  110.797147][ T3580]  __might_resched.cold (kernel/sched/core.c:9234)
[  110.797152][ T3580]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  110.797156][ T3580]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  110.797161][ T3580]  __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))
[  110.797163][ T3580]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  110.797170][ T3580]  ? 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)
[  110.797172][ T3580]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  110.797176][ T3580]  put_chars (drivers/char/virtio_console.c:1176)
[  110.797179][ T3580]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  110.797180][ T3580]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  110.797184][ T3580]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  110.797190][ T3580]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  110.797198][ T3580]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  110.797200][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797202][ T3580]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  110.797207][ T3580]  console_emit_next_record (kernel/printk/printk.c:3183)
[  110.797211][ T3580]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  110.797213][ T3580]  ? 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))
[  110.797217][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797218][ T3580]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  110.797223][ T3580]  console_flush_one_record (kernel/printk/printk.c:3268)
[  110.797227][ T3580]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  110.797229][ T3580]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  110.797235][ T3580]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  110.797238][ T3580]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  110.797240][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797242][ T3580]  ? 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)
[  110.797246][ T3580]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  110.797247][ T3580]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  110.797250][ T3580]  vprintk_emit (kernel/printk/printk.c:2479)
[  110.797254][ T3580]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  110.797255][ T3580]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  110.797258][ T3580]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  110.797262][ T3580]  _printk (kernel/printk/printk.c:2504)
[  110.797266][ T3580]  ? snapshot_read.cold (user.c:?)
[  110.797270][ T3580]  ? br_multicast_flood (??:?)
[  110.797274][ T3580]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  110.797275][ T3580]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  110.797276][ T3580]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  110.797281][ T3580]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  110.797285][ T3580]  br_init_port (net/bridge/br_stp_if.c:39)
[  110.797288][ T3580]  new_nbp (net/bridge/br_if.c:449)
[  110.797292][ T3580]  br_add_if (net/bridge/br_if.c:592)
[  110.797295][ T3580]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  110.797299][ T3580]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  110.797304][ T3580]  do_set_master (net/core/rtnetlink.c:3071)
[  110.797309][ T3580]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  110.797312][ T3580]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  110.797316][ T3580]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  110.797317][ T3580]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  110.797320][ T3580]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  110.797324][ T3580]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  110.797326][ T3580]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  110.797328][ T3580]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  110.797330][ T3580]  ? kasan_save_stack (mm/kasan/common.c:58)
[  110.797333][ T3580]  ? kasan_save_stack (mm/kasan/common.c:57)
[  110.797334][ T3580]  ? kasan_save_track (mm/kasan/common.c:78)
[  110.797336][ T3580]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  110.797338][ T3580]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  110.797340][ T3580]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  110.797345][ T3580]  ? ___sys_sendmsg (net/socket.c:2758)
[  110.797349][ T3580]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  110.797351][ T3580]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  110.797354][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797356][ T3580]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  110.797357][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797358][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797360][ T3580]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  110.797363][ T3580]  ? __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)
[  110.797366][ T3580]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  110.797368][ T3580]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  110.797371][ T3580]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  110.797373][ T3580]  ? nla_get_range_signed (lib/nlattr.c:270)
[  110.797378][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797380][ T3580]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  110.797386][ T3580]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  110.797391][ T3580]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  110.797393][ T3580]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  110.797398][ T3580]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  110.797400][ T3580]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  110.797402][ T3580]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  110.797404][ T3580]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  110.797408][ T3580]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  110.797411][ T3580]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  110.797415][ T3580]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  110.797417][ T3580]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  110.797422][ T3580]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  110.797424][ T3580]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  110.797428][ T3580]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  110.797431][ T3580]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  110.797434][ T3580]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  110.797441][ T3580]  ? 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))
[  110.797443][ T3580]  ? 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))
[  110.797447][ T3580]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  110.797452][ T3580]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  110.797454][ T3580]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  110.797459][ T3580]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  110.797463][ T3580]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  110.797467][ T3580]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  110.797469][ T3580]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  110.797474][ T3580]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  110.797477][ T3580]  ____sys_sendmsg (net/socket.c:2713)
[  110.797480][ T3580]  ? copy_msghdr_from_user (net/socket.c:2650)
[  110.797482][ T3580]  ? sock_write_iter (net/socket.c:1269)
[  110.797484][ T3580]  ? move_addr_to_kernel (net/socket.c:258)
[  110.797492][ T3580]  ___sys_sendmsg (net/socket.c:2767)
[  110.797495][ T3580]  ? copy_msghdr_from_user (net/socket.c:2619)
[  110.797511][ T3580]  __sys_sendmsg (net/socket.c:2799)
[  110.797515][ T3580]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  110.797521][ T3580]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  110.797524][ T3580]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  110.797528][ T3580]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  110.797531][ T3580]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  110.797533][ T3580] RIP: 0033:0x7fee154b654e
[  110.797537][ T3580] 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
[  110.797539][ T3580] RSP: 002b:00007ffc6c27dde0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  110.797541][ T3580] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fee154b654e
[  110.797543][ T3580] RDX: 0000000000000000 RSI: 00007ffc6c27de90 RDI: 0000000000000005
[  110.797544][ T3580] RBP: 00007ffc6c27ddf0 R08: 0000000000000000 R09: 0000000000000000
[  110.797545][ T3580] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918256
[  110.797546][ T3580] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6c27e560
| [  112.465754][ T3665] softirqs last disabled at (17124): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  112.465758][ T3665] Preemption disabled at:
| [  112.465759][ T3665] vprintk_emit (kernel/printk/printk.c:2471)
| [  112.465770][ T3665] Tainted: [W]=WARN
[  112.465772][ T3665] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  112.465774][ T3665] Call Trace:
[  112.465776][ T3665]  <TASK>
[  112.465779][ T3665]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  112.465786][ T3665]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  112.465788][ T3665]  __might_resched.cold (kernel/sched/core.c:9234)
[  112.465794][ T3665]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  112.465800][ T3665]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  112.465807][ T3665]  __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))
[  112.465810][ T3665]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  112.465820][ T3665]  ? 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)
[  112.465824][ T3665]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  112.465829][ T3665]  put_chars (drivers/char/virtio_console.c:1176)
[  112.465832][ T3665]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  112.465834][ T3665]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  112.465840][ T3665]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  112.465849][ T3665]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  112.465859][ T3665]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  112.465863][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.465867][ T3665]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  112.465874][ T3665]  console_emit_next_record (kernel/printk/printk.c:3183)
[  112.465878][ T3665]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  112.465880][ T3665]  ? 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))
[  112.465886][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.465889][ T3665]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  112.465902][ T3665]  console_flush_one_record (kernel/printk/printk.c:3268)
[  112.465907][ T3665]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  112.465909][ T3665]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.465918][ T3665]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  112.465923][ T3665]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  112.465925][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.465928][ T3665]  ? 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)
[  112.465934][ T3665]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  112.465937][ T3665]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  112.465942][ T3665]  vprintk_emit (kernel/printk/printk.c:2479)
[  112.465947][ T3665]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  112.465950][ T3665]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  112.465954][ T3665]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  112.465960][ T3665]  _printk (kernel/printk/printk.c:2504)
[  112.465966][ T3665]  ? snapshot_read.cold (user.c:?)
[  112.465972][ T3665]  ? br_multicast_flood (??:?)
[  112.465975][ T3665]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  112.465978][ T3665]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  112.465980][ T3665]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  112.465988][ T3665]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  112.465995][ T3665]  br_init_port (net/bridge/br_stp_if.c:39)
[  112.465998][ T3665]  new_nbp (net/bridge/br_if.c:449)
[  112.466003][ T3665]  br_add_if (net/bridge/br_if.c:592)
[  112.466007][ T3665]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  112.466012][ T3665]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  112.466020][ T3665]  do_set_master (net/core/rtnetlink.c:3071)
[  112.466026][ T3665]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  112.466031][ T3665]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  112.466036][ T3665]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  112.466039][ T3665]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  112.466042][ T3665]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  112.466046][ T3665]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  112.466049][ T3665]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  112.466052][ T3665]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  112.466056][ T3665]  ? kasan_save_stack (mm/kasan/common.c:58)
[  112.466059][ T3665]  ? kasan_save_stack (mm/kasan/common.c:57)
[  112.466061][ T3665]  ? kasan_save_track (mm/kasan/common.c:78)
[  112.466064][ T3665]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  112.466067][ T3665]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466069][ T3665]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  112.466073][ T3665]  ? ___sys_sendmsg (net/socket.c:2758)
[  112.466079][ T3665]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  112.466082][ T3665]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  112.466087][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466089][ T3665]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  112.466091][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466092][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466095][ T3665]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  112.466099][ T3665]  ? __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)
[  112.466103][ T3665]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  112.466106][ T3665]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  112.466112][ T3665]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  112.466114][ T3665]  ? nla_get_range_signed (lib/nlattr.c:270)
[  112.466121][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466125][ T3665]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  112.466135][ T3665]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  112.466141][ T3665]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  112.466143][ T3665]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466150][ T3665]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  112.466154][ T3665]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  112.466157][ T3665]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  112.466160][ T3665]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  112.466165][ T3665]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  112.466168][ T3665]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  112.466171][ T3665]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  112.466173][ T3665]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  112.466181][ T3665]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  112.466184][ T3665]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  112.466190][ T3665]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  112.466194][ T3665]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  112.466197][ T3665]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  112.466207][ T3665]  ? 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))
[  112.466210][ T3665]  ? 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))
[  112.466218][ T3665]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  112.466222][ T3665]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  112.466225][ T3665]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  112.466231][ T3665]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  112.466240][ T3665]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  112.466246][ T3665]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  112.466248][ T3665]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  112.466254][ T3665]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  112.466257][ T3665]  ____sys_sendmsg (net/socket.c:2713)
[  112.466260][ T3665]  ? copy_msghdr_from_user (net/socket.c:2650)
[  112.466264][ T3665]  ? sock_write_iter (net/socket.c:1269)
[  112.466266][ T3665]  ? move_addr_to_kernel (net/socket.c:258)
[  112.466278][ T3665]  ___sys_sendmsg (net/socket.c:2767)
[  112.466281][ T3665]  ? copy_msghdr_from_user (net/socket.c:2619)
[  112.466306][ T3665]  __sys_sendmsg (net/socket.c:2799)
[  112.466309][ T3665]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  112.466319][ T3665]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  112.466324][ T3665]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  112.466328][ T3665]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  112.466332][ T3665]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  112.466335][ T3665] RIP: 0033:0x7fd9ef56054e
[  112.466340][ T3665] 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
[  112.466343][ T3665] RSP: 002b:00007ffca8ab9630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  112.466347][ T3665] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd9ef56054e
[  112.466349][ T3665] RDX: 0000000000000000 RSI: 00007ffca8ab96e0 RDI: 0000000000000005
[  112.466351][ T3665] RBP: 00007ffca8ab9640 R08: 0000000000000000 R09: 0000000000000000
[  112.466352][ T3665] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918257
[  112.466354][ T3665] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca8ab9db0
| [  113.494979][ T3719] softirqs last disabled at (16324): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119)
| [  113.494983][ T3719] Preemption disabled at:
| [  113.494984][ T3719] 0x0
| [  113.494997][ T3719] Tainted: [W]=WARN
[  113.494999][ T3719] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  113.495001][ T3719] Call Trace:
[  113.495003][ T3719]  <TASK>
[  113.495005][ T3719]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  113.495014][ T3719]  __might_resched.cold (kernel/sched/core.c:9234)
[  113.495020][ T3719]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  113.495026][ T3719]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  113.495033][ T3719]  __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))
[  113.495036][ T3719]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  113.495046][ T3719]  ? 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)
[  113.495050][ T3719]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  113.495056][ T3719]  put_chars (drivers/char/virtio_console.c:1176)
[  113.495060][ T3719]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  113.495062][ T3719]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  113.495068][ T3719]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  113.495077][ T3719]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  113.495089][ T3719]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  113.495093][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495097][ T3719]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  113.495104][ T3719]  console_emit_next_record (kernel/printk/printk.c:3183)
[  113.495111][ T3719]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  113.495113][ T3719]  ? 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))
[  113.495119][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495122][ T3719]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  113.495129][ T3719]  console_flush_one_record (kernel/printk/printk.c:3268)
[  113.495136][ T3719]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  113.495139][ T3719]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.495149][ T3719]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  113.495153][ T3719]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  113.495156][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495159][ T3719]  ? 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)
[  113.495166][ T3719]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  113.495168][ T3719]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  113.495173][ T3719]  vprintk_emit (kernel/printk/printk.c:2479)
[  113.495179][ T3719]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  113.495183][ T3719]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  113.495186][ T3719]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  113.495194][ T3719]  _printk (kernel/printk/printk.c:2504)
[  113.495199][ T3719]  ? snapshot_read.cold (user.c:?)
[  113.495208][ T3719]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  113.495215][ T3719]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  113.495223][ T3719]  br_init_port (net/bridge/br_stp_if.c:39)
[  113.495227][ T3719]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[  113.495230][ T3719]  br_device_event (net/bridge/br.c:120)
[  113.495235][ T3719]  ? packet_sendmsg_spkt (af_packet.c:?)
[  113.495237][ T3719]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[  113.495248][ T3719]  notifier_call_chain (kernel/notifier.c:85)
[  113.495258][ T3719]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[  113.495266][ T3719]  ? netif_change_name (net/core/dev.c:1517)
[  113.495273][ T3719]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[  113.495277][ T3719]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  113.495281][ T3719]  ? __kernel_text_address (kernel/extable.c:79)
[  113.495284][ T3719]  ? write_profile (profile.c:?)
[  113.495291][ T3719]  netif_change_flags (net/core/dev.c:9882)
[  113.495298][ T3719]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  113.495305][ T3719]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  113.495308][ T3719]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  113.495310][ T3719]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  113.495314][ T3719]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  113.495319][ T3719]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  113.495322][ T3719]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  113.495325][ T3719]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  113.495329][ T3719]  ? kasan_save_stack (mm/kasan/common.c:58)
[  113.495333][ T3719]  ? kasan_save_stack (mm/kasan/common.c:57)
[  113.495335][ T3719]  ? kasan_save_track (mm/kasan/common.c:78)
[  113.495337][ T3719]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  113.495341][ T3719]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.495346][ T3719]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  113.495350][ T3719]  ? ___sys_sendmsg (net/socket.c:2758)
[  113.495357][ T3719]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  113.495360][ T3719]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  113.495365][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495368][ T3719]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  113.495370][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495372][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495376][ T3719]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  113.495380][ T3719]  ? __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)
[  113.495383][ T3719]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  113.495387][ T3719]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  113.495393][ T3719]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  113.495400][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495404][ T3719]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  113.495413][ T3719]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  113.495424][ T3719]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  113.495427][ T3719]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.495435][ T3719]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  113.495438][ T3719]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  113.495442][ T3719]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  113.495445][ T3719]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  113.495452][ T3719]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  113.495456][ T3719]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  113.495461][ T3719]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  113.495464][ T3719]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  113.495472][ T3719]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  113.495475][ T3719]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  113.495481][ T3719]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  113.495484][ T3719]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  113.495490][ T3719]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  113.495501][ T3719]  ? 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))
[  113.495504][ T3719]  ? 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))
[  113.495512][ T3719]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  113.495519][ T3719]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  113.495524][ T3719]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  113.495531][ T3719]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  113.495538][ T3719]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  113.495544][ T3719]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  113.495547][ T3719]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  113.495555][ T3719]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  113.495559][ T3719]  ____sys_sendmsg (net/socket.c:2713)
[  113.495563][ T3719]  ? copy_msghdr_from_user (net/socket.c:2650)
[  113.495567][ T3719]  ? sock_write_iter (net/socket.c:1269)
[  113.495569][ T3719]  ? move_addr_to_kernel (net/socket.c:258)
[  113.495583][ T3719]  ___sys_sendmsg (net/socket.c:2767)
[  113.495588][ T3719]  ? copy_msghdr_from_user (net/socket.c:2619)
[  113.495617][ T3719]  __sys_sendmsg (net/socket.c:2799)
[  113.495622][ T3719]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  113.495634][ T3719]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  113.495639][ T3719]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  113.495643][ T3719]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  113.495648][ T3719]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  113.495652][ T3719] RIP: 0033:0x7f24d920954e
[  113.495656][ T3719] 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
[  113.495659][ T3719] RSP: 002b:00007ffdfdd09c50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  113.495663][ T3719] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f24d920954e
[  113.495665][ T3719] RDX: 0000000000000000 RSI: 00007ffdfdd09d00 RDI: 0000000000000005
[  113.495666][ T3719] RBP: 00007ffdfdd09c60 R08: 0000000000000000 R09: 0000000000000000
[  113.495668][ T3719] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918258
[  113.495669][ T3719] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdfdd0a3d0
| [  114.886328][   T12] softirqs last disabled at (1395966): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [  114.886330][   T12] Preemption disabled at:
| [  114.886331][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [  114.886340][   T12] Tainted: [W]=WARN
[  114.886341][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  114.886346][   T12] Workqueue: netns cleanup_net
[  114.886350][   T12] Call Trace:
[  114.886351][   T12]  <TASK>
[  114.886353][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  114.886360][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  114.886361][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[  114.886366][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  114.886370][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  114.886375][   T12]  __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))
[  114.886377][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  114.886384][   T12]  ? 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)
[  114.886387][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  114.886391][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[  114.886393][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  114.886395][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  114.886398][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  114.886401][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  114.886407][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  114.886411][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  114.886417][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  114.886420][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  114.886425][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[  114.886430][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  114.886432][   T12]  ? 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))
[  114.886435][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  114.886437][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  114.886441][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[  114.886446][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  114.886448][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  114.886454][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  114.886457][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  114.886459][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  114.886461][   T12]  ? 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)
[  114.886465][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  114.886466][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  114.886469][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[  114.886473][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  114.886474][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[  114.886476][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  114.886478][   T12]  ? kthread (kernel/kthread.c:436)
[  114.886481][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  114.886484][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  114.886489][   T12]  _printk (kernel/printk/printk.c:2504)
[  114.886493][   T12]  ? snapshot_read.cold (user.c:?)
[  114.886498][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[  114.886502][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[  114.886506][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[  114.886509][   T12]  ? netdev_notice (net/core/dev.c:13194)
[  114.886514][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  114.886515][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[  114.886518][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[  114.886520][   T12]  ? 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)
[  114.886523][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[  114.886527][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[  114.886531][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[  114.886537][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[  114.886541][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[  114.886544][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[  114.886548][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  114.886552][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[  114.886554][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  114.886557][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  114.886562][   T12]  cleanup_net (net/core/net_namespace.c:706)
[  114.886566][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  114.886570][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  114.886572][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  114.886575][   T12]  process_one_work (kernel/workqueue.c:3387)
[  114.886582][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  114.886586][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  114.886594][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  114.886601][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  114.886604][   T12]  kthread (kernel/kthread.c:436)
[  114.886606][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  114.886609][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  114.886612][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  114.886615][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  114.886618][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  114.886622][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars