======================================
| [   10.849416][  T227] softirqs last disabled at (26534): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   10.849419][  T227] Preemption disabled at:
| [   10.849419][  T227] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.849428][  T227] Tainted: [W]=WARN
[   10.849429][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.849430][  T227] Call Trace:
[   10.849432][  T227]  <TASK>
[   10.849433][  T227]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.849439][  T227]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.849447][  T227]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.849452][  T227]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.849456][  T227]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.849461][  T227]  __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))
[   10.849463][  T227]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.849469][  T227]  ? 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)
[   10.849472][  T227]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.849476][  T227]  put_chars (drivers/char/virtio_console.c:1176)
[   10.849478][  T227]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.849485][  T227]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.849492][  T227]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.849496][  T227]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.849500][  T227]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.849504][  T227]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.849506][  T227]  ? 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))
[   10.849509][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849511][  T227]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.849515][  T227]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.849520][  T227]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.849521][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.849527][  T227]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.849529][  T227]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.849531][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849533][  T227]  ? 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)
[   10.849537][  T227]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.849538][  T227]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.849541][  T227]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.849544][  T227]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.849546][  T227]  ? save_trace (kernel/locking/lockdep.c:589)
[   10.849550][  T227]  _printk (kernel/printk/printk.c:2504)
[   10.849554][  T227]  ? snapshot_read.cold (user.c:?)
[   10.849557][  T227]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.849560][  T227]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   10.849563][  T227]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   10.849566][  T227]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.849568][  T227]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   10.849571][  T227]  ? netdev_notice (net/core/dev.c:13194)
[   10.849573][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.849576][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.849579][  T227]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.849583][  T227]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.849585][  T227]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   10.849587][  T227]  ? register_netdev (net/core/dev.c:11618)
[   10.849588][  T227]  ? 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))
[   10.849593][  T227]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   10.849596][  T227]  ? __kernel_text_address (kernel/extable.c:79)
[   10.849598][  T227]  ? write_profile (profile.c:?)
[   10.849602][  T227]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   10.849608][  T227]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.849611][  T227]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.849613][  T227]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.849615][  T227]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.849617][  T227]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.849621][  T227]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.849623][  T227]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.849624][  T227]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.849627][  T227]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.849629][  T227]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.849630][  T227]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.849631][  T227]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.849633][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.849635][  T227]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   10.849638][  T227]  ? ___sys_sendmsg (net/socket.c:2758)
[   10.849642][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.849644][  T227]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.849646][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849648][  T227]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.849650][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849651][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849652][  T227]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.849655][  T227]  ? __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)
[   10.849657][  T227]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.849659][  T227]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.849663][  T227]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.849664][  T227]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.849669][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849671][  T227]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.849676][  T227]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.849682][  T227]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.849683][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.849688][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.849690][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.849692][  T227]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.849693][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.849697][  T227]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.849699][  T227]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.849702][  T227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.849704][  T227]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.849708][  T227]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.849710][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.849713][  T227]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.849716][  T227]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.849719][  T227]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.849725][  T227]  ? 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))
[   10.849728][  T227]  ? 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))
[   10.849732][  T227]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.849736][  T227]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.849738][  T227]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.849743][  T227]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.849747][  T227]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.849750][  T227]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.849752][  T227]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   10.849757][  T227]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   10.849760][  T227]  ____sys_sendmsg (net/socket.c:2713)
[   10.849762][  T227]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.849764][  T227]  ? sock_write_iter (net/socket.c:1269)
[   10.849766][  T227]  ? move_addr_to_kernel (net/socket.c:258)
[   10.849773][  T227]  ___sys_sendmsg (net/socket.c:2767)
[   10.849776][  T227]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.849792][  T227]  __sys_sendmsg (net/socket.c:2799)
[   10.849795][  T227]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.849801][  T227]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.849804][  T227]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.849808][  T227]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.849810][  T227]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.849813][  T227] RIP: 0033:0x7f63bdb6b54e
[   10.849817][  T227] 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
[   10.849818][  T227] RSP: 002b:00007ffc6f15eb30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.849821][  T227] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f63bdb6b54e
[   10.849822][  T227] RDX: 0000000000000000 RSI: 00007ffc6f15ebe0 RDI: 0000000000000005
[   10.849823][  T227] RBP: 00007ffc6f15eb40 R08: 0000000000000000 R09: 0000000000000000
[   10.849824][  T227] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c0f6
[   10.849824][  T227] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc6f15f2b0
| [   15.313589][  T341] softirqs last disabled at (19714): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   15.313591][  T341] Preemption disabled at:
| [   15.313592][  T341] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.313600][  T341] Tainted: [W]=WARN
[   15.313601][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.313602][  T341] Call Trace:
[   15.313604][  T341]  <TASK>
[   15.313605][  T341]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.313611][  T341]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.313613][  T341]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.313617][  T341]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.313621][  T341]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.313625][  T341]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   15.313627][  T341]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.313634][  T341]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   15.313637][  T341]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.313640][  T341]  put_chars (drivers/char/virtio_console.c:1176)
[   15.313643][  T341]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.313649][  T341]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.313657][  T341]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.313660][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.313665][  T341]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.313669][  T341]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.313671][  T341]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   15.313674][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313677][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.313681][  T341]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.313685][  T341]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.313687][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.313692][  T341]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.313695][  T341]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.313697][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313699][  T341]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   15.313702][  T341]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.313704][  T341]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.313707][  T341]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.313710][  T341]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.313712][  T341]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   15.313718][  T341]  _printk (kernel/printk/printk.c:2504)
[   15.313721][  T341]  ? snapshot_read.cold (user.c:?)
[   15.313723][  T341]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.313725][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.313728][  T341]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.313730][  T341]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   15.313734][  T341]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   15.313737][  T341]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   15.313739][  T341]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   15.313742][  T341]  ? netdev_notice (net/core/dev.c:13194)
[   15.313745][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.313748][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.313750][  T341]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.313754][  T341]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   15.313756][  T341]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   15.313758][  T341]  ? register_netdev (net/core/dev.c:11618)
[   15.313759][  T341]  ? 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))
[   15.313765][  T341]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   15.313767][  T341]  ? __kernel_text_address (kernel/extable.c:79)
[   15.313770][  T341]  ? write_profile (profile.c:?)
[   15.313774][  T341]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   15.313779][  T341]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   15.313783][  T341]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.313785][  T341]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.313786][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.313788][  T341]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.313791][  T341]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.313793][  T341]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.313795][  T341]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.313797][  T341]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.313799][  T341]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.313800][  T341]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.313801][  T341]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.313804][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.313806][  T341]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   15.313808][  T341]  ? ___sys_sendmsg (net/socket.c:2758)
[   15.313812][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.313814][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.313817][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313818][  T341]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.313820][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313821][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313823][  T341]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.313825][  T341]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   15.313827][  T341]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.313828][  T341]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.313832][  T341]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.313833][  T341]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.313838][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313840][  T341]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.313845][  T341]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.313851][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.313853][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.313857][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.313859][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.313861][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.313863][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.313867][  T341]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.313869][  T341]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.313872][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.313873][  T341]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.313877][  T341]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.313879][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.313883][  T341]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.313886][  T341]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.313889][  T341]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.313895][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   15.313897][  T341]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   15.313902][  T341]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.313906][  T341]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.313908][  T341]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.313913][  T341]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.313917][  T341]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.313921][  T341]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.313922][  T341]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   15.313927][  T341]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   15.313930][  T341]  ____sys_sendmsg (net/socket.c:2713)
[   15.313932][  T341]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.313935][  T341]  ? sock_write_iter (net/socket.c:1269)
[   15.313936][  T341]  ? move_addr_to_kernel (net/socket.c:258)
[   15.313944][  T341]  ___sys_sendmsg (net/socket.c:2767)
[   15.313947][  T341]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.313963][  T341]  __sys_sendmsg (net/socket.c:2799)
[   15.313966][  T341]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.313972][  T341]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.313975][  T341]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.313978][  T341]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.313981][  T341]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.313987][  T341] RIP: 0033:0x7f39aa89154e
[   15.313990][  T341] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   15.313992][  T341] RSP: 002b:00007ffd425c8fa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.313995][  T341] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f39aa89154e
[   15.313996][  T341] RDX: 0000000000000000 RSI: 00007ffd425c9050 RDI: 0000000000000005
[   15.313997][  T341] RBP: 00007ffd425c8fb0 R08: 0000000000000000 R09: 0000000000000000
[   15.313998][  T341] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c0fa
[   15.313998][  T341] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd425c9720
| [   20.344505][  T454] softirqs last disabled at (23556): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   20.344508][  T454] Preemption disabled at:
| [   20.344508][  T454] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.344516][  T454] Tainted: [W]=WARN
[   20.344517][  T454] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.344519][  T454] Call Trace:
[   20.344520][  T454]  <TASK>
[   20.344522][  T454]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.344527][  T454]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.344529][  T454]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.344533][  T454]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.344537][  T454]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.344542][  T454]  __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))
[   20.344544][  T454]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.344550][  T454]  ? 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)
[   20.344553][  T454]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.344557][  T454]  put_chars (drivers/char/virtio_console.c:1176)
[   20.344559][  T454]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.344566][  T454]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.344573][  T454]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.344577][  T454]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.344581][  T454]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.344585][  T454]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.344587][  T454]  ? 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))
[   20.344590][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344593][  T454]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.344597][  T454]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.344601][  T454]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.344603][  T454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.344608][  T454]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.344611][  T454]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.344613][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344614][  T454]  ? 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)
[   20.344618][  T454]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.344620][  T454]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.344622][  T454]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.344626][  T454]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.344628][  T454]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   20.344633][  T454]  _printk (kernel/printk/printk.c:2504)
[   20.344637][  T454]  ? snapshot_read.cold (user.c:?)
[   20.344638][  T454]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.344641][  T454]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.344644][  T454]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.344646][  T454]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.344650][  T454]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.344652][  T454]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.344655][  T454]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.344657][  T454]  ? netdev_notice (net/core/dev.c:13194)
[   20.344660][  T454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.344663][  T454]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.344666][  T454]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   20.344669][  T454]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.344671][  T454]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   20.344673][  T454]  ? register_netdev (net/core/dev.c:11618)
[   20.344675][  T454]  ? 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))
[   20.344680][  T454]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   20.344682][  T454]  ? __kernel_text_address (kernel/extable.c:79)
[   20.344685][  T454]  ? write_profile (profile.c:?)
[   20.344689][  T454]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   20.344694][  T454]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.344698][  T454]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.344700][  T454]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.344701][  T454]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.344703][  T454]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.344706][  T454]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.344708][  T454]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.344710][  T454]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.344712][  T454]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.344714][  T454]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.344715][  T454]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.344717][  T454]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.344719][  T454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.344721][  T454]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   20.344724][  T454]  ? ___sys_sendmsg (net/socket.c:2758)
[   20.344727][  T454]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.344729][  T454]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.344732][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344734][  T454]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.344735][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344736][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344738][  T454]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.344740][  T454]  ? __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)
[   20.344742][  T454]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.344744][  T454]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.344747][  T454]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.344748][  T454]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.344753][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344755][  T454]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.344761][  T454]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.344766][  T454]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.344768][  T454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.344772][  T454]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.344774][  T454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.344776][  T454]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.344778][  T454]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.344782][  T454]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.344784][  T454]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.344787][  T454]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.344788][  T454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.344793][  T454]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.344794][  T454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.344798][  T454]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.344801][  T454]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.344804][  T454]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.344810][  T454]  ? 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))
[   20.344812][  T454]  ? 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))
[   20.344817][  T454]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.344821][  T454]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.344823][  T454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.344828][  T454]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.344832][  T454]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.344835][  T454]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.344837][  T454]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.344842][  T454]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.344845][  T454]  ____sys_sendmsg (net/socket.c:2713)
[   20.344847][  T454]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.344850][  T454]  ? sock_write_iter (net/socket.c:1269)
[   20.344851][  T454]  ? move_addr_to_kernel (net/socket.c:258)
[   20.344859][  T454]  ___sys_sendmsg (net/socket.c:2767)
[   20.344861][  T454]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.344877][  T454]  __sys_sendmsg (net/socket.c:2799)
[   20.344880][  T454]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.344886][  T454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.344889][  T454]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.344892][  T454]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.344895][  T454]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.344897][  T454] RIP: 0033:0x7f7e9a5d154e
[   20.344901][  T454] 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
[   20.344903][  T454] RSP: 002b:00007fff8fed7b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.344905][  T454] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f7e9a5d154e
[   20.344907][  T454] RDX: 0000000000000000 RSI: 00007fff8fed7c20 RDI: 0000000000000005
[   20.344907][  T454] RBP: 00007fff8fed7b80 R08: 0000000000000000 R09: 0000000000000000
[   20.344908][  T454] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c0ff
[   20.344909][  T454] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff8fed82f0
| [   25.349726][  T568] softirqs last disabled at (24370): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   25.349729][  T568] Preemption disabled at:
| [   25.349729][  T568] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.349738][  T568] Tainted: [W]=WARN
[   25.349739][  T568] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.349741][  T568] Call Trace:
[   25.349743][  T568]  <TASK>
[   25.349744][  T568]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.349751][  T568]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.349753][  T568]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.349757][  T568]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.349761][  T568]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.349766][  T568]  __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))
[   25.349768][  T568]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.349774][  T568]  ? 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)
[   25.349777][  T568]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.349781][  T568]  put_chars (drivers/char/virtio_console.c:1176)
[   25.349783][  T568]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.349790][  T568]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.349797][  T568]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.349801][  T568]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.349805][  T568]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.349809][  T568]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.349811][  T568]  ? 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))
[   25.349814][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.349817][  T568]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.349821][  T568]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.349825][  T568]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.349827][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.349832][  T568]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.349835][  T568]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.349837][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.349839][  T568]  ? 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)
[   25.349843][  T568]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.349844][  T568]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.349847][  T568]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.349850][  T568]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.349853][  T568]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   25.349858][  T568]  _printk (kernel/printk/printk.c:2504)
[   25.349861][  T568]  ? snapshot_read.cold (user.c:?)
[   25.349863][  T568]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.349866][  T568]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.349869][  T568]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.349871][  T568]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   25.349875][  T568]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   25.349878][  T568]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   25.349880][  T568]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   25.349883][  T568]  ? netdev_notice (net/core/dev.c:13194)
[   25.349885][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.349888][  T568]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.349891][  T568]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.349895][  T568]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   25.349897][  T568]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   25.349899][  T568]  ? register_netdev (net/core/dev.c:11618)
[   25.349900][  T568]  ? 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))
[   25.349906][  T568]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   25.349908][  T568]  ? __kernel_text_address (kernel/extable.c:79)
[   25.349911][  T568]  ? write_profile (profile.c:?)
[   25.349915][  T568]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   25.349921][  T568]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   25.349924][  T568]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.349926][  T568]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.349928][  T568]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.349929][  T568]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.349933][  T568]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.349935][  T568]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.349937][  T568]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.349939][  T568]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.349941][  T568]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.349942][  T568]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.349943][  T568]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.349946][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.349947][  T568]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   25.349950][  T568]  ? ___sys_sendmsg (net/socket.c:2758)
[   25.349954][  T568]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.349956][  T568]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.349959][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.349960][  T568]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.349962][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.349963][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.349965][  T568]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.349967][  T568]  ? __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)
[   25.349968][  T568]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.349970][  T568]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.349974][  T568]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.349975][  T568]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.349980][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.349982][  T568]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.349991][  T568]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.349996][  T568]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.349998][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.350003][  T568]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.350005][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.350006][  T568]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.350008][  T568]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.350012][  T568]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.350014][  T568]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.350017][  T568]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.350019][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.350023][  T568]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.350025][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.350028][  T568]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.350032][  T568]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.350034][  T568]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.350041][  T568]  ? 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))
[   25.350043][  T568]  ? 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))
[   25.350047][  T568]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.350051][  T568]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.350054][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.350058][  T568]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.350062][  T568]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.350066][  T568]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.350067][  T568]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.350073][  T568]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.350075][  T568]  ____sys_sendmsg (net/socket.c:2713)
[   25.350077][  T568]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.350080][  T568]  ? sock_write_iter (net/socket.c:1269)
[   25.350081][  T568]  ? move_addr_to_kernel (net/socket.c:258)
[   25.350089][  T568]  ___sys_sendmsg (net/socket.c:2767)
[   25.350091][  T568]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.350107][  T568]  __sys_sendmsg (net/socket.c:2799)
[   25.350110][  T568]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.350116][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.350119][  T568]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.350122][  T568]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.350125][  T568]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.350127][  T568] RIP: 0033:0x7fa18210b54e
[   25.350131][  T568] 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
[   25.350133][  T568] RSP: 002b:00007ffdac425990 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.350136][  T568] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fa18210b54e
[   25.350137][  T568] RDX: 0000000000000000 RSI: 00007ffdac425a40 RDI: 0000000000000005
[   25.350138][  T568] RBP: 00007ffdac4259a0 R08: 0000000000000000 R09: 0000000000000000
[   25.350139][  T568] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c104
[   25.350139][  T568] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdac426110
| [   30.507590][  T680] softirqs last disabled at (29416): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   30.507592][  T680] Preemption disabled at:
| [   30.507593][  T680] vprintk_emit (kernel/printk/printk.c:2471)
| [   30.507601][  T680] Tainted: [W]=WARN
[   30.507602][  T680] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.507604][  T680] Call Trace:
[   30.507606][  T680]  <TASK>
[   30.507607][  T680]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.507614][  T680]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   30.507615][  T680]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.507620][  T680]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.507624][  T680]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   30.507629][  T680]  __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))
[   30.507631][  T680]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.507637][  T680]  ? 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)
[   30.507640][  T680]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.507644][  T680]  put_chars (drivers/char/virtio_console.c:1176)
[   30.507647][  T680]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.507654][  T680]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.507662][  T680]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.507666][  T680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.507671][  T680]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.507675][  T680]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.507677][  T680]  ? 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))
[   30.507680][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507683][  T680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.507687][  T680]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.507692][  T680]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.507694][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.507699][  T680]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.507702][  T680]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.507704][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507706][  T680]  ? 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)
[   30.507710][  T680]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.507712][  T680]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.507714][  T680]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.507718][  T680]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.507721][  T680]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   30.507726][  T680]  _printk (kernel/printk/printk.c:2504)
[   30.507730][  T680]  ? snapshot_read.cold (user.c:?)
[   30.507731][  T680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.507734][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.507737][  T680]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.507739][  T680]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   30.507743][  T680]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   30.507746][  T680]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.507748][  T680]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   30.507751][  T680]  ? netdev_notice (net/core/dev.c:13194)
[   30.507754][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.507757][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.507760][  T680]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   30.507764][  T680]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.507766][  T680]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   30.507768][  T680]  ? register_netdev (net/core/dev.c:11618)
[   30.507769][  T680]  ? 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))
[   30.507775][  T680]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   30.507777][  T680]  ? __kernel_text_address (kernel/extable.c:79)
[   30.507780][  T680]  ? write_profile (profile.c:?)
[   30.507784][  T680]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   30.507790][  T680]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.507794][  T680]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   30.507796][  T680]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   30.507797][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   30.507799][  T680]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   30.507803][  T680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.507805][  T680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.507807][  T680]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.507809][  T680]  ? kasan_save_stack (mm/kasan/common.c:58)
[   30.507811][  T680]  ? kasan_save_stack (mm/kasan/common.c:57)
[   30.507812][  T680]  ? kasan_save_track (mm/kasan/common.c:78)
[   30.507814][  T680]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.507816][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.507818][  T680]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   30.507821][  T680]  ? ___sys_sendmsg (net/socket.c:2758)
[   30.507825][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.507827][  T680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.507830][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507832][  T680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.507834][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507835][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507836][  T680]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   30.507839][  T680]  ? __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)
[   30.507840][  T680]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   30.507842][  T680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.507846][  T680]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   30.507847][  T680]  ? nla_get_range_signed (lib/nlattr.c:270)
[   30.507852][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507854][  T680]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   30.507860][  T680]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   30.507866][  T680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.507867][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.507872][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.507874][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.507876][  T680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.507878][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.507882][  T680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.507884][  T680]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.507888][  T680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.507889][  T680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.507894][  T680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.507896][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.507899][  T680]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.507902][  T680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.507906][  T680]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   30.507912][  T680]  ? 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))
[   30.507914][  T680]  ? 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))
[   30.507919][  T680]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.507923][  T680]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   30.507926][  T680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.507931][  T680]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.507935][  T680]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   30.507939][  T680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.507940][  T680]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   30.507946][  T680]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   30.507949][  T680]  ____sys_sendmsg (net/socket.c:2713)
[   30.507951][  T680]  ? copy_msghdr_from_user (net/socket.c:2650)
[   30.507954][  T680]  ? sock_write_iter (net/socket.c:1269)
[   30.507955][  T680]  ? move_addr_to_kernel (net/socket.c:258)
[   30.507963][  T680]  ___sys_sendmsg (net/socket.c:2767)
[   30.507966][  T680]  ? copy_msghdr_from_user (net/socket.c:2619)
[   30.507986][  T680]  __sys_sendmsg (net/socket.c:2799)
[   30.507990][  T680]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   30.507996][  T680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.507999][  T680]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.508002][  T680]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   30.508005][  T680]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.508008][  T680] RIP: 0033:0x7f6ed80dc54e
[   30.508012][  T680] 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
[   30.508014][  T680] RSP: 002b:00007ffe34912a20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   30.508016][  T680] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6ed80dc54e
[   30.508018][  T680] RDX: 0000000000000000 RSI: 00007ffe34912ad0 RDI: 0000000000000005
[   30.508019][  T680] RBP: 00007ffe34912a30 R08: 0000000000000000 R09: 0000000000000000
[   30.508019][  T680] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c109
[   30.508020][  T680] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe349131a0
| [   36.676764][  T797] softirqs last disabled at (26162): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   36.676767][  T797] Preemption disabled at:
| [   36.676767][  T797] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.676776][  T797] Tainted: [W]=WARN
[   36.676777][  T797] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.676778][  T797] Call Trace:
[   36.676780][  T797]  <TASK>
[   36.676782][  T797]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.676788][  T797]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.676790][  T797]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.676794][  T797]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.676799][  T797]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.676804][  T797]  __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))
[   36.676805][  T797]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.676812][  T797]  ? 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)
[   36.676815][  T797]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.676819][  T797]  put_chars (drivers/char/virtio_console.c:1176)
[   36.676821][  T797]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.676828][  T797]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.676837][  T797]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.676840][  T797]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.676845][  T797]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.676849][  T797]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.676851][  T797]  ? 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))
[   36.676854][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.676857][  T797]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.676861][  T797]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.676866][  T797]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.676868][  T797]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.676873][  T797]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.676876][  T797]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.676878][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.676880][  T797]  ? 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)
[   36.676884][  T797]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.676885][  T797]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.676888][  T797]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.676892][  T797]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.676894][  T797]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   36.676900][  T797]  _printk (kernel/printk/printk.c:2504)
[   36.676903][  T797]  ? snapshot_read.cold (user.c:?)
[   36.676905][  T797]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.676908][  T797]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.676911][  T797]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.676913][  T797]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.676917][  T797]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.676920][  T797]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.676922][  T797]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.676925][  T797]  ? netdev_notice (net/core/dev.c:13194)
[   36.676928][  T797]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.676931][  T797]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.676934][  T797]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.676937][  T797]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.676940][  T797]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   36.676942][  T797]  ? register_netdev (net/core/dev.c:11618)
[   36.676943][  T797]  ? 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))
[   36.676949][  T797]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   36.676951][  T797]  ? __kernel_text_address (kernel/extable.c:79)
[   36.676954][  T797]  ? write_profile (profile.c:?)
[   36.676958][  T797]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   36.676964][  T797]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.676967][  T797]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   36.676969][  T797]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   36.676971][  T797]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.676973][  T797]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.676976][  T797]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.676978][  T797]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.676980][  T797]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.676982][  T797]  ? kasan_save_stack (mm/kasan/common.c:58)
[   36.676987][  T797]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.676989][  T797]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.676990][  T797]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.676992][  T797]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.676994][  T797]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   36.676997][  T797]  ? ___sys_sendmsg (net/socket.c:2758)
[   36.677001][  T797]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.677003][  T797]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.677006][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.677008][  T797]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.677010][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.677011][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.677013][  T797]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   36.677015][  T797]  ? __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)
[   36.677017][  T797]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   36.677019][  T797]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.677022][  T797]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   36.677023][  T797]  ? nla_get_range_signed (lib/nlattr.c:270)
[   36.677029][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.677031][  T797]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   36.677036][  T797]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.677042][  T797]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.677044][  T797]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.677049][  T797]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.677051][  T797]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.677053][  T797]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.677055][  T797]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.677058][  T797]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.677061][  T797]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.677064][  T797]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.677065][  T797]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.677070][  T797]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.677072][  T797]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.677076][  T797]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.677079][  T797]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.677082][  T797]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.677089][  T797]  ? 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))
[   36.677091][  T797]  ? 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))
[   36.677096][  T797]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.677100][  T797]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.677103][  T797]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.677108][  T797]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.677112][  T797]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.677116][  T797]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.677118][  T797]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.677126][  T797]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.677130][  T797]  ____sys_sendmsg (net/socket.c:2713)
[   36.677132][  T797]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.677135][  T797]  ? sock_write_iter (net/socket.c:1269)
[   36.677136][  T797]  ? move_addr_to_kernel (net/socket.c:258)
[   36.677144][  T797]  ___sys_sendmsg (net/socket.c:2767)
[   36.677147][  T797]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.677164][  T797]  __sys_sendmsg (net/socket.c:2799)
[   36.677168][  T797]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.677174][  T797]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.677177][  T797]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.677180][  T797]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.677183][  T797]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.677186][  T797] RIP: 0033:0x7fb8d68c754e
[   36.677190][  T797] 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
[   36.677191][  T797] RSP: 002b:00007ffd000eda30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.677194][  T797] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb8d68c754e
[   36.677196][  T797] RDX: 0000000000000000 RSI: 00007ffd000edae0 RDI: 0000000000000005
[   36.677197][  T797] RBP: 00007ffd000eda40 R08: 0000000000000000 R09: 0000000000000000
[   36.677197][  T797] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c110
[   36.677198][  T797] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd000ee1b0
| [   43.065570][  T921] softirqs last disabled at (22042): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   43.065572][  T921] Preemption disabled at:
| [   43.065573][  T921] vprintk_emit (kernel/printk/printk.c:2471)
| [   43.065582][  T921] Tainted: [W]=WARN
[   43.065583][  T921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.065584][  T921] Call Trace:
[   43.065586][  T921]  <TASK>
[   43.065588][  T921]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   43.065594][  T921]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   43.065596][  T921]  __might_resched.cold (kernel/sched/core.c:9234)
[   43.065600][  T921]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   43.065604][  T921]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   43.065609][  T921]  __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))
[   43.065610][  T921]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.065617][  T921]  ? 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)
[   43.065619][  T921]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.065623][  T921]  put_chars (drivers/char/virtio_console.c:1176)
[   43.065625][  T921]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   43.065632][  T921]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   43.065639][  T921]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   43.065642][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.065647][  T921]  console_emit_next_record (kernel/printk/printk.c:3183)
[   43.065651][  T921]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   43.065653][  T921]  ? 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))
[   43.065656][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065659][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.065663][  T921]  console_flush_one_record (kernel/printk/printk.c:3268)
[   43.065667][  T921]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   43.065669][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.065674][  T921]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   43.065677][  T921]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   43.065679][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065681][  T921]  ? 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)
[   43.065684][  T921]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   43.065686][  T921]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   43.065689][  T921]  vprintk_emit (kernel/printk/printk.c:2479)
[   43.065692][  T921]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   43.065694][  T921]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   43.065700][  T921]  _printk (kernel/printk/printk.c:2504)
[   43.065703][  T921]  ? snapshot_read.cold (user.c:?)
[   43.065705][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.065707][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   43.065710][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.065712][  T921]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   43.065716][  T921]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   43.065718][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   43.065721][  T921]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   43.065724][  T921]  ? netdev_notice (net/core/dev.c:13194)
[   43.065726][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.065729][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.065732][  T921]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   43.065735][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   43.065737][  T921]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   43.065740][  T921]  ? register_netdev (net/core/dev.c:11618)
[   43.065741][  T921]  ? 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))
[   43.065746][  T921]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   43.065749][  T921]  ? __kernel_text_address (kernel/extable.c:79)
[   43.065751][  T921]  ? write_profile (profile.c:?)
[   43.065755][  T921]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   43.065761][  T921]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   43.065764][  T921]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   43.065766][  T921]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   43.065768][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   43.065770][  T921]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   43.065773][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.065775][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   43.065777][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.065779][  T921]  ? kasan_save_stack (mm/kasan/common.c:58)
[   43.065781][  T921]  ? kasan_save_stack (mm/kasan/common.c:57)
[   43.065782][  T921]  ? kasan_save_track (mm/kasan/common.c:78)
[   43.065783][  T921]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   43.065786][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.065787][  T921]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   43.065790][  T921]  ? ___sys_sendmsg (net/socket.c:2758)
[   43.065794][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.065796][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.065799][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065800][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.065802][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065803][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065805][  T921]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   43.065807][  T921]  ? __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)
[   43.065808][  T921]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   43.065810][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.065813][  T921]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   43.065814][  T921]  ? nla_get_range_signed (lib/nlattr.c:270)
[   43.065820][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065822][  T921]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   43.065827][  T921]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.065832][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.065834][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.065839][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.065841][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.065842][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.065844][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.065848][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.065850][  T921]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.065853][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.065854][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.065859][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.065861][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.065864][  T921]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   43.065867][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.065870][  T921]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   43.065877][  T921]  ? 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))
[   43.065879][  T921]  ? 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))
[   43.065883][  T921]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   43.065887][  T921]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   43.065890][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.065894][  T921]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   43.065898][  T921]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   43.065902][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.065903][  T921]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   43.065909][  T921]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   43.065911][  T921]  ____sys_sendmsg (net/socket.c:2713)
[   43.065914][  T921]  ? copy_msghdr_from_user (net/socket.c:2650)
[   43.065916][  T921]  ? sock_write_iter (net/socket.c:1269)
[   43.065917][  T921]  ? move_addr_to_kernel (net/socket.c:258)
[   43.065925][  T921]  ___sys_sendmsg (net/socket.c:2767)
[   43.065928][  T921]  ? copy_msghdr_from_user (net/socket.c:2619)
[   43.065944][  T921]  __sys_sendmsg (net/socket.c:2799)
[   43.065947][  T921]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   43.065953][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.065956][  T921]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   43.065959][  T921]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   43.065962][  T921]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.065964][  T921] RIP: 0033:0x7f731a90a54e
[   43.065968][  T921] 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
[   43.065970][  T921] RSP: 002b:00007fff36296930 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   43.065972][  T921] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f731a90a54e
[   43.065974][  T921] RDX: 0000000000000000 RSI: 00007fff362969e0 RDI: 0000000000000005
[   43.065975][  T921] RBP: 00007fff36296940 R08: 0000000000000000 R09: 0000000000000000
[   43.065975][  T921] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c116
[   43.065976][  T921] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff362970b0
| [   44.332754][   T61] softirqs last disabled at (60858): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   44.332757][   T61] Preemption disabled at:
| [   44.332758][   T61] 0x0
| [   44.332768][   T61] Tainted: [W]=WARN
[   44.332768][   T61] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.332770][   T61] Workqueue: events_unbound linkwatch_event
[   44.332774][   T61] Call Trace:
[   44.332775][   T61]  <TASK>
[   44.332777][   T61]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   44.332784][   T61]  __might_resched.cold (kernel/sched/core.c:9234)
[   44.332789][   T61]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   44.332793][   T61]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   44.332797][   T61]  __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))
[   44.332799][   T61]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.332806][   T61]  ? 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)
[   44.332809][   T61]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.332813][   T61]  put_chars (drivers/char/virtio_console.c:1176)
[   44.332815][   T61]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   44.332818][   T61]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.332821][   T61]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.332824][   T61]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.332828][   T61]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   44.332832][   T61]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   44.332834][   T61]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.332835][   T61]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.332840][   T61]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   44.332842][   T61]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.332847][   T61]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.332851][   T61]  console_emit_next_record (kernel/printk/printk.c:3183)
[   44.332855][   T61]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   44.332857][   T61]  ? 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))
[   44.332860][   T61]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.332862][   T61]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.332866][   T61]  console_flush_one_record (kernel/printk/printk.c:3268)
[   44.332871][   T61]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   44.332873][   T61]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.332878][   T61]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   44.332881][   T61]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   44.332883][   T61]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.332885][   T61]  ? 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)
[   44.332889][   T61]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   44.332890][   T61]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   44.332893][   T61]  vprintk_emit (kernel/printk/printk.c:2479)
[   44.332897][   T61]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   44.332899][   T61]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.332901][   T61]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.332904][   T61]  _printk (kernel/printk/printk.c:2504)
[   44.332908][   T61]  ? snapshot_read.cold (user.c:?)
[   44.332914][   T61]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.332917][   T61]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   44.332922][   T61]  br_init_port (net/bridge/br_stp_if.c:39)
[   44.332925][   T61]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   44.332927][   T61]  br_port_carrier_check (net/bridge/br_if.c:90)
[   44.332930][   T61]  br_device_event (net/bridge/br.c:101)
[   44.332934][   T61]  ? packet_sendmsg_spkt (af_packet.c:?)
[   44.332936][   T61]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   44.332943][   T61]  notifier_call_chain (kernel/notifier.c:85)
[   44.332949][   T61]  netif_state_change (net/core/dev.c:1625)
[   44.332954][   T61]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   44.332959][   T61]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   44.332961][   T61]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   44.332964][   T61]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.332966][   T61]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.332971][   T61]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   44.332973][   T61]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   44.332977][   T61]  process_one_work (kernel/workqueue.c:3387)
[   44.332987][   T61]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   44.332990][   T61]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.332998][   T61]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   44.333006][   T61]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   44.333008][   T61]  kthread (kernel/kthread.c:436)
[   44.333010][   T61]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   44.333014][   T61]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   44.333017][   T61]  ret_from_fork (arch/x86/kernel/process.c:158)
[   44.333021][   T61]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   44.333024][   T61]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   44.333028][   T61]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   44.333031][   T61]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.254768][   T69] softirqs last disabled at (699346): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   47.254770][   T69] Preemption disabled at:
| [   47.254771][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.254779][   T69] Tainted: [W]=WARN
[   47.254780][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.254781][   T69] Workqueue: netns cleanup_net
[   47.254784][   T69] Call Trace:
[   47.254786][   T69]  <TASK>
[   47.254788][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.254794][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.254796][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.254800][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.254804][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.254809][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   47.254811][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.254818][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   47.254821][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.254825][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   47.254828][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.254831][   T69]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   47.254837][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.254841][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.254847][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.254850][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.254856][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.254860][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.254862][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   47.254866][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.254868][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.254872][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.254877][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.254879][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.254884][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.254887][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.254889][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.254891][   T69]  ? 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)
[   47.254895][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.254897][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.254900][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.254904][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.254905][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   47.254907][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   47.254909][   T69]  ? kthread (kernel/kthread.c:436)
[   47.254911][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   47.254914][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   47.254919][   T69]  _printk (kernel/printk/printk.c:2504)
[   47.254923][   T69]  ? snapshot_read.cold (user.c:?)
[   47.254928][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   47.254932][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   47.254936][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   47.254939][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   47.254944][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.254946][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   47.254949][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   47.254951][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.254954][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   47.254958][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   47.254962][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   47.254966][   T69]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   47.254968][   T69]  ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   47.254973][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   47.254977][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   47.254981][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   47.254988][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   47.254992][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   47.254993][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.254997][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   47.255002][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   47.255006][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.255010][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.255012][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.255015][   T69]  process_one_work (kernel/workqueue.c:3387)
[   47.255023][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   47.255026][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.255034][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   47.255039][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   47.255041][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   47.255044][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   47.255047][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   47.255049][   T69]  kthread (kernel/kthread.c:436)
[   47.255051][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.255054][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   47.255057][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.255060][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   47.255064][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.255068][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   47.255071][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   49.305646][ T1069] softirqs last disabled at (19368): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   49.305648][ T1069] Preemption disabled at:
| [   49.305649][ T1069] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.305657][ T1069] Tainted: [W]=WARN
[   49.305658][ T1069] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.305659][ T1069] Call Trace:
[   49.305661][ T1069]  <TASK>
[   49.305663][ T1069]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.305669][ T1069]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.305671][ T1069]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.305675][ T1069]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.305679][ T1069]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   49.305684][ T1069]  __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))
[   49.305685][ T1069]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.305692][ T1069]  ? 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)
[   49.305695][ T1069]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.305699][ T1069]  put_chars (drivers/char/virtio_console.c:1176)
[   49.305701][ T1069]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.305708][ T1069]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.305716][ T1069]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.305719][ T1069]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.305724][ T1069]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.305728][ T1069]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.305730][ T1069]  ? 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))
[   49.305733][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.305736][ T1069]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.305740][ T1069]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.305744][ T1069]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.305746][ T1069]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.305752][ T1069]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.305755][ T1069]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.305757][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.305758][ T1069]  ? 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)
[   49.305762][ T1069]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.305764][ T1069]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.305767][ T1069]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.305770][ T1069]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.305773][ T1069]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   49.305778][ T1069]  _printk (kernel/printk/printk.c:2504)
[   49.305781][ T1069]  ? snapshot_read.cold (user.c:?)
[   49.305783][ T1069]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.305786][ T1069]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.305789][ T1069]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.305791][ T1069]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   49.305795][ T1069]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   49.305797][ T1069]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.305800][ T1069]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   49.305803][ T1069]  ? netdev_notice (net/core/dev.c:13194)
[   49.305805][ T1069]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.305809][ T1069]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.305811][ T1069]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   49.305815][ T1069]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.305817][ T1069]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   49.305819][ T1069]  ? register_netdev (net/core/dev.c:11618)
[   49.305820][ T1069]  ? 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))
[   49.305826][ T1069]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   49.305829][ T1069]  ? __kernel_text_address (kernel/extable.c:79)
[   49.305831][ T1069]  ? write_profile (profile.c:?)
[   49.305835][ T1069]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   49.305841][ T1069]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.305845][ T1069]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   49.305847][ T1069]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   49.305848][ T1069]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   49.305850][ T1069]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   49.305853][ T1069]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.305855][ T1069]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.305857][ T1069]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.305860][ T1069]  ? kasan_save_stack (mm/kasan/common.c:58)
[   49.305862][ T1069]  ? kasan_save_stack (mm/kasan/common.c:57)
[   49.305863][ T1069]  ? kasan_save_track (mm/kasan/common.c:78)
[   49.305864][ T1069]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   49.305866][ T1069]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.305868][ T1069]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   49.305871][ T1069]  ? ___sys_sendmsg (net/socket.c:2758)
[   49.305875][ T1069]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.305877][ T1069]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.305880][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.305881][ T1069]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.305883][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.305884][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.305886][ T1069]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   49.305888][ T1069]  ? __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)
[   49.305889][ T1069]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   49.305891][ T1069]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.305895][ T1069]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   49.305896][ T1069]  ? nla_get_range_signed (lib/nlattr.c:270)
[   49.305901][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.305903][ T1069]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   49.305909][ T1069]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   49.305914][ T1069]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.305916][ T1069]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.305921][ T1069]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.305923][ T1069]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.305925][ T1069]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.305927][ T1069]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.305931][ T1069]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.305933][ T1069]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   49.305936][ T1069]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.305937][ T1069]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.305942][ T1069]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.305944][ T1069]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.305948][ T1069]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   49.305951][ T1069]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.305954][ T1069]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   49.305960][ T1069]  ? 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))
[   49.305963][ T1069]  ? 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))
[   49.305967][ T1069]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   49.305971][ T1069]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   49.305974][ T1069]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.305978][ T1069]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   49.305983][ T1069]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   49.305990][ T1069]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.305991][ T1069]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   49.305997][ T1069]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   49.306000][ T1069]  ____sys_sendmsg (net/socket.c:2713)
[   49.306002][ T1069]  ? copy_msghdr_from_user (net/socket.c:2650)
[   49.306004][ T1069]  ? sock_write_iter (net/socket.c:1269)
[   49.306006][ T1069]  ? move_addr_to_kernel (net/socket.c:258)
[   49.306014][ T1069]  ___sys_sendmsg (net/socket.c:2767)
[   49.306017][ T1069]  ? copy_msghdr_from_user (net/socket.c:2619)
[   49.306034][ T1069]  __sys_sendmsg (net/socket.c:2799)
[   49.306037][ T1069]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   49.306043][ T1069]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.306046][ T1069]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   49.306050][ T1069]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   49.306052][ T1069]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   49.306055][ T1069] RIP: 0033:0x7f8c7d7c854e
[   49.306058][ T1069] 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
[   49.306060][ T1069] RSP: 002b:00007fff276b9b60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   49.306063][ T1069] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8c7d7c854e
[   49.306064][ T1069] RDX: 0000000000000000 RSI: 00007fff276b9c10 RDI: 0000000000000005
[   49.306065][ T1069] RBP: 00007fff276b9b70 R08: 0000000000000000 R09: 0000000000000000
[   49.306066][ T1069] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c11c
[   49.306067][ T1069] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff276ba2e0
| [   53.388816][   T69] softirqs last disabled at (886812): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   53.388819][   T69] Preemption disabled at:
| [   53.388819][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   53.388828][   T69] Tainted: [W]=WARN
[   53.388829][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.388830][   T69] Workqueue: netns cleanup_net
[   53.388833][   T69] Call Trace:
[   53.388835][   T69]  <TASK>
[   53.388837][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   53.388843][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   53.388845][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   53.388849][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   53.388853][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   53.388858][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   53.388860][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   53.388867][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   53.388870][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   53.388873][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   53.388876][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   53.388877][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   53.388881][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   53.388884][   T69]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   53.388889][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   53.388893][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   53.388898][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   53.388901][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.388906][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   53.388911][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   53.388913][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   53.388916][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.388918][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.388922][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   53.388926][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   53.388928][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   53.388934][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   53.388937][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   53.388939][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.388940][   T69]  ? 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)
[   53.388944][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   53.388946][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   53.388949][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   53.388952][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   53.388953][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   53.388955][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   53.388957][   T69]  ? kthread (kernel/kthread.c:436)
[   53.388959][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   53.388962][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   53.388967][   T69]  _printk (kernel/printk/printk.c:2504)
[   53.388971][   T69]  ? snapshot_read.cold (user.c:?)
[   53.388975][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   53.388979][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   53.388987][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   53.388990][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   53.388994][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.388996][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   53.388999][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   53.389001][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   53.389003][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   53.389008][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   53.389011][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   53.389014][   T69]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   53.389016][   T69]  ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   53.389021][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   53.389025][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   53.389028][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   53.389032][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   53.389036][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   53.389037][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   53.389040][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   53.389045][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   53.389048][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   53.389052][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.389054][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.389058][   T69]  process_one_work (kernel/workqueue.c:3387)
[   53.389064][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   53.389067][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   53.389075][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   53.389080][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   53.389082][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   53.389085][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   53.389088][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   53.389090][   T69]  kthread (kernel/kthread.c:436)
[   53.389091][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   53.389095][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   53.389098][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   53.389100][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   53.389104][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   53.389107][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   53.389110][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.006653][ T1200] softirqs last disabled at (16484): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   55.006655][ T1200] Preemption disabled at:
| [   55.006656][ T1200] vprintk_emit (kernel/printk/printk.c:2471)
| [   55.006664][ T1200] Tainted: [W]=WARN
[   55.006665][ T1200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.006667][ T1200] Call Trace:
[   55.006668][ T1200]  <TASK>
[   55.006670][ T1200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   55.006676][ T1200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   55.006677][ T1200]  __might_resched.cold (kernel/sched/core.c:9234)
[   55.006681][ T1200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   55.006686][ T1200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   55.006690][ T1200]  __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))
[   55.006692][ T1200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   55.006698][ T1200]  ? 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)
[   55.006701][ T1200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   55.006705][ T1200]  put_chars (drivers/char/virtio_console.c:1176)
[   55.006707][ T1200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   55.006713][ T1200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   55.006721][ T1200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   55.006724][ T1200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.006729][ T1200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   55.006733][ T1200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   55.006735][ T1200]  ? 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))
[   55.006738][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.006740][ T1200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.006744][ T1200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   55.006749][ T1200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   55.006751][ T1200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.006756][ T1200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   55.006759][ T1200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   55.006761][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.006762][ T1200]  ? 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)
[   55.006766][ T1200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   55.006768][ T1200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   55.006770][ T1200]  vprintk_emit (kernel/printk/printk.c:2479)
[   55.006774][ T1200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   55.006776][ T1200]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   55.006781][ T1200]  _printk (kernel/printk/printk.c:2504)
[   55.006785][ T1200]  ? snapshot_read.cold (user.c:?)
[   55.006787][ T1200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   55.006789][ T1200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.006792][ T1200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   55.006794][ T1200]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   55.006798][ T1200]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   55.006801][ T1200]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   55.006803][ T1200]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   55.006806][ T1200]  ? netdev_notice (net/core/dev.c:13194)
[   55.006808][ T1200]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.006811][ T1200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.006814][ T1200]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   55.006817][ T1200]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   55.006819][ T1200]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   55.006821][ T1200]  ? register_netdev (net/core/dev.c:11618)
[   55.006823][ T1200]  ? 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))
[   55.006828][ T1200]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   55.006830][ T1200]  ? __kernel_text_address (kernel/extable.c:79)
[   55.006833][ T1200]  ? write_profile (profile.c:?)
[   55.006837][ T1200]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   55.006842][ T1200]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   55.006846][ T1200]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   55.006848][ T1200]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   55.006849][ T1200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   55.006851][ T1200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   55.006854][ T1200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   55.006856][ T1200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.006858][ T1200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   55.006860][ T1200]  ? kasan_save_stack (mm/kasan/common.c:58)
[   55.006862][ T1200]  ? kasan_save_stack (mm/kasan/common.c:57)
[   55.006863][ T1200]  ? kasan_save_track (mm/kasan/common.c:78)
[   55.006864][ T1200]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   55.006867][ T1200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.006868][ T1200]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   55.006871][ T1200]  ? ___sys_sendmsg (net/socket.c:2758)
[   55.006875][ T1200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.006877][ T1200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   55.006879][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.006881][ T1200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   55.006883][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.006884][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.006885][ T1200]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   55.006888][ T1200]  ? __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)
[   55.006889][ T1200]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   55.006891][ T1200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   55.006895][ T1200]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   55.006896][ T1200]  ? nla_get_range_signed (lib/nlattr.c:270)
[   55.006900][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.006903][ T1200]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   55.006908][ T1200]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   55.006913][ T1200]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   55.006915][ T1200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.006920][ T1200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.006922][ T1200]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.006923][ T1200]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   55.006925][ T1200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.006929][ T1200]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   55.006931][ T1200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   55.006934][ T1200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   55.006935][ T1200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   55.006940][ T1200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   55.006942][ T1200]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.006945][ T1200]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   55.006948][ T1200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   55.006951][ T1200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   55.006958][ T1200]  ? 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))
[   55.006960][ T1200]  ? 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))
[   55.006964][ T1200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   55.006968][ T1200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   55.006971][ T1200]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   55.006975][ T1200]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   55.006979][ T1200]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   55.006983][ T1200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   55.006987][ T1200]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   55.006993][ T1200]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   55.006996][ T1200]  ____sys_sendmsg (net/socket.c:2713)
[   55.006998][ T1200]  ? copy_msghdr_from_user (net/socket.c:2650)
[   55.007000][ T1200]  ? sock_write_iter (net/socket.c:1269)
[   55.007002][ T1200]  ? move_addr_to_kernel (net/socket.c:258)
[   55.007009][ T1200]  ___sys_sendmsg (net/socket.c:2767)
[   55.007012][ T1200]  ? copy_msghdr_from_user (net/socket.c:2619)
[   55.007028][ T1200]  __sys_sendmsg (net/socket.c:2799)
[   55.007031][ T1200]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   55.007038][ T1200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   55.007041][ T1200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   55.007044][ T1200]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   55.007046][ T1200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.007049][ T1200] RIP: 0033:0x7f6dfaab054e
[   55.007052][ T1200] 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
[   55.007054][ T1200] RSP: 002b:00007ffe1bfd3f40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   55.007057][ T1200] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6dfaab054e
[   55.007058][ T1200] RDX: 0000000000000000 RSI: 00007ffe1bfd3ff0 RDI: 0000000000000005
[   55.007059][ T1200] RBP: 00007ffe1bfd3f50 R08: 0000000000000000 R09: 0000000000000000
[   55.007060][ T1200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c122
[   55.007060][ T1200] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe1bfd46c0
| [   59.303627][ T1320] softirqs last disabled at (28322): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   59.303630][ T1320] Preemption disabled at:
| [   59.303630][ T1320] vprintk_emit (kernel/printk/printk.c:2471)
| [   59.303639][ T1320] Tainted: [W]=WARN
[   59.303640][ T1320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   59.303642][ T1320] Call Trace:
[   59.303643][ T1320]  <TASK>
[   59.303645][ T1320]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   59.303651][ T1320]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   59.303652][ T1320]  __might_resched.cold (kernel/sched/core.c:9234)
[   59.303656][ T1320]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   59.303661][ T1320]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   59.303665][ T1320]  __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))
[   59.303667][ T1320]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   59.303673][ T1320]  ? 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)
[   59.303676][ T1320]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   59.303680][ T1320]  put_chars (drivers/char/virtio_console.c:1176)
[   59.303682][ T1320]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   59.303689][ T1320]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   59.303697][ T1320]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   59.303700][ T1320]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.303704][ T1320]  console_emit_next_record (kernel/printk/printk.c:3183)
[   59.303708][ T1320]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   59.303710][ T1320]  ? 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))
[   59.303713][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.303716][ T1320]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.303720][ T1320]  console_flush_one_record (kernel/printk/printk.c:3268)
[   59.303724][ T1320]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   59.303726][ T1320]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.303731][ T1320]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   59.303734][ T1320]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   59.303736][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.303737][ T1320]  ? 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)
[   59.303741][ T1320]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   59.303743][ T1320]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   59.303746][ T1320]  vprintk_emit (kernel/printk/printk.c:2479)
[   59.303749][ T1320]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   59.303751][ T1320]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   59.303756][ T1320]  _printk (kernel/printk/printk.c:2504)
[   59.303760][ T1320]  ? snapshot_read.cold (user.c:?)
[   59.303761][ T1320]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   59.303764][ T1320]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   59.303767][ T1320]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   59.303769][ T1320]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   59.303773][ T1320]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   59.303776][ T1320]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   59.303778][ T1320]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   59.303781][ T1320]  ? netdev_notice (net/core/dev.c:13194)
[   59.303783][ T1320]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.303786][ T1320]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.303789][ T1320]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   59.303792][ T1320]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   59.303794][ T1320]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   59.303796][ T1320]  ? register_netdev (net/core/dev.c:11618)
[   59.303798][ T1320]  ? 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))
[   59.303803][ T1320]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   59.303806][ T1320]  ? __kernel_text_address (kernel/extable.c:79)
[   59.303808][ T1320]  ? write_profile (profile.c:?)
[   59.303812][ T1320]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   59.303818][ T1320]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   59.303821][ T1320]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   59.303823][ T1320]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   59.303825][ T1320]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   59.303826][ T1320]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   59.303830][ T1320]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   59.303831][ T1320]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   59.303833][ T1320]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   59.303836][ T1320]  ? kasan_save_stack (mm/kasan/common.c:58)
[   59.303838][ T1320]  ? kasan_save_stack (mm/kasan/common.c:57)
[   59.303839][ T1320]  ? kasan_save_track (mm/kasan/common.c:78)
[   59.303840][ T1320]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   59.303842][ T1320]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.303844][ T1320]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   59.303847][ T1320]  ? ___sys_sendmsg (net/socket.c:2758)
[   59.303851][ T1320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.303853][ T1320]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   59.303855][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.303857][ T1320]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.303858][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.303860][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.303861][ T1320]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   59.303863][ T1320]  ? __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)
[   59.303865][ T1320]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   59.303867][ T1320]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   59.303870][ T1320]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   59.303871][ T1320]  ? nla_get_range_signed (lib/nlattr.c:270)
[   59.303876][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.303878][ T1320]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   59.303883][ T1320]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   59.303889][ T1320]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.303891][ T1320]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.303895][ T1320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.303897][ T1320]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.303899][ T1320]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.303901][ T1320]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.303905][ T1320]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.303906][ T1320]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   59.303910][ T1320]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   59.303911][ T1320]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.303915][ T1320]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.303917][ T1320]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.303921][ T1320]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   59.303924][ T1320]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   59.303927][ T1320]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   59.303933][ T1320]  ? 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))
[   59.303935][ T1320]  ? 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))
[   59.303940][ T1320]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   59.303944][ T1320]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   59.303946][ T1320]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.303951][ T1320]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   59.303955][ T1320]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   59.303959][ T1320]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.303960][ T1320]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   59.303966][ T1320]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   59.303968][ T1320]  ____sys_sendmsg (net/socket.c:2713)
[   59.303971][ T1320]  ? copy_msghdr_from_user (net/socket.c:2650)
[   59.303973][ T1320]  ? sock_write_iter (net/socket.c:1269)
[   59.303974][ T1320]  ? move_addr_to_kernel (net/socket.c:258)
[   59.303982][ T1320]  ___sys_sendmsg (net/socket.c:2767)
[   59.303988][ T1320]  ? copy_msghdr_from_user (net/socket.c:2619)
[   59.304004][ T1320]  __sys_sendmsg (net/socket.c:2799)
[   59.304007][ T1320]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   59.304013][ T1320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.304016][ T1320]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   59.304019][ T1320]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   59.304022][ T1320]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   59.304025][ T1320] RIP: 0033:0x7f21b906354e
[   59.304028][ T1320] 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
[   59.304030][ T1320] RSP: 002b:00007fff71d4a030 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   59.304033][ T1320] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f21b906354e
[   59.304034][ T1320] RDX: 0000000000000000 RSI: 00007fff71d4a0e0 RDI: 0000000000000005
[   59.304035][ T1320] RBP: 00007fff71d4a040 R08: 0000000000000000 R09: 0000000000000000
[   59.304036][ T1320] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c126
[   59.304037][ T1320] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff71d4a7b0
| [   64.428701][ T1439] softirqs last disabled at (24514): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   64.428703][ T1439] Preemption disabled at:
| [   64.428704][ T1439] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.428712][ T1439] Tainted: [W]=WARN
[   64.428713][ T1439] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.428715][ T1439] Call Trace:
[   64.428716][ T1439]  <TASK>
[   64.428718][ T1439]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.428724][ T1439]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.428725][ T1439]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.428730][ T1439]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.428734][ T1439]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.428739][ T1439]  __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))
[   64.428741][ T1439]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.428747][ T1439]  ? 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)
[   64.428750][ T1439]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.428754][ T1439]  put_chars (drivers/char/virtio_console.c:1176)
[   64.428756][ T1439]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.428763][ T1439]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.428771][ T1439]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.428774][ T1439]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.428779][ T1439]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.428783][ T1439]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.428785][ T1439]  ? 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))
[   64.428788][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.428791][ T1439]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.428795][ T1439]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.428799][ T1439]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.428801][ T1439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.428807][ T1439]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.428809][ T1439]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.428811][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.428813][ T1439]  ? 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)
[   64.428817][ T1439]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.428819][ T1439]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.428821][ T1439]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.428824][ T1439]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.428827][ T1439]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   64.428832][ T1439]  _printk (kernel/printk/printk.c:2504)
[   64.428836][ T1439]  ? snapshot_read.cold (user.c:?)
[   64.428838][ T1439]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.428840][ T1439]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.428843][ T1439]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.428845][ T1439]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.428849][ T1439]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.428852][ T1439]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.428854][ T1439]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.428857][ T1439]  ? netdev_notice (net/core/dev.c:13194)
[   64.428859][ T1439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.428863][ T1439]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.428865][ T1439]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.428869][ T1439]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.428871][ T1439]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   64.428873][ T1439]  ? register_netdev (net/core/dev.c:11618)
[   64.428874][ T1439]  ? 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))
[   64.428880][ T1439]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   64.428882][ T1439]  ? __kernel_text_address (kernel/extable.c:79)
[   64.428885][ T1439]  ? write_profile (profile.c:?)
[   64.428889][ T1439]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   64.428894][ T1439]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.428898][ T1439]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.428900][ T1439]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.428901][ T1439]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.428903][ T1439]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.428906][ T1439]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.428908][ T1439]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.428910][ T1439]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.428912][ T1439]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.428914][ T1439]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.428915][ T1439]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.428917][ T1439]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.428919][ T1439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.428921][ T1439]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.428924][ T1439]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.428928][ T1439]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.428930][ T1439]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.428932][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.428934][ T1439]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.428935][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.428936][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.428938][ T1439]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.428941][ T1439]  ? __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)
[   64.428942][ T1439]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.428944][ T1439]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.428947][ T1439]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.428948][ T1439]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.428954][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.428956][ T1439]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.428961][ T1439]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.428967][ T1439]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.428969][ T1439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.428973][ T1439]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.428975][ T1439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.428977][ T1439]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.428979][ T1439]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.428982][ T1439]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.428988][ T1439]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.428991][ T1439]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.428992][ T1439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.428997][ T1439]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.428998][ T1439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.429002][ T1439]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.429005][ T1439]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.429008][ T1439]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.429014][ T1439]  ? 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))
[   64.429016][ T1439]  ? 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))
[   64.429021][ T1439]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.429024][ T1439]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.429027][ T1439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.429031][ T1439]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.429035][ T1439]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.429039][ T1439]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.429040][ T1439]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.429046][ T1439]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.429048][ T1439]  ____sys_sendmsg (net/socket.c:2713)
[   64.429051][ T1439]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.429053][ T1439]  ? sock_write_iter (net/socket.c:1269)
[   64.429054][ T1439]  ? move_addr_to_kernel (net/socket.c:258)
[   64.429062][ T1439]  ___sys_sendmsg (net/socket.c:2767)
[   64.429065][ T1439]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.429080][ T1439]  __sys_sendmsg (net/socket.c:2799)
[   64.429084][ T1439]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.429090][ T1439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.429093][ T1439]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.429096][ T1439]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.429099][ T1439]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.429101][ T1439] RIP: 0033:0x7f51a3c3f54e
[   64.429105][ T1439] 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
[   64.429106][ T1439] RSP: 002b:00007ffcf4c5f3e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.429109][ T1439] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f51a3c3f54e
[   64.429110][ T1439] RDX: 0000000000000000 RSI: 00007ffcf4c5f490 RDI: 0000000000000005
[   64.429111][ T1439] RBP: 00007ffcf4c5f3f0 R08: 0000000000000000 R09: 0000000000000000
[   64.429112][ T1439] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c12b
[   64.429113][ T1439] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf4c5fb60
| [   69.638464][ T1556] softirqs last disabled at (17868): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   69.638467][ T1556] Preemption disabled at:
| [   69.638467][ T1556] vprintk_emit (kernel/printk/printk.c:2471)
| [   69.638475][ T1556] Tainted: [W]=WARN
[   69.638476][ T1556] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   69.638478][ T1556] Call Trace:
[   69.638480][ T1556]  <TASK>
[   69.638481][ T1556]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   69.638487][ T1556]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   69.638489][ T1556]  __might_resched.cold (kernel/sched/core.c:9234)
[   69.638493][ T1556]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   69.638498][ T1556]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   69.638502][ T1556]  __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))
[   69.638504][ T1556]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.638511][ T1556]  ? 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)
[   69.638513][ T1556]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.638517][ T1556]  put_chars (drivers/char/virtio_console.c:1176)
[   69.638519][ T1556]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   69.638526][ T1556]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   69.638533][ T1556]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   69.638536][ T1556]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.638541][ T1556]  console_emit_next_record (kernel/printk/printk.c:3183)
[   69.638545][ T1556]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   69.638547][ T1556]  ? 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))
[   69.638550][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638553][ T1556]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.638557][ T1556]  console_flush_one_record (kernel/printk/printk.c:3268)
[   69.638561][ T1556]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   69.638563][ T1556]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.638568][ T1556]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   69.638571][ T1556]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   69.638573][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638575][ T1556]  ? 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)
[   69.638578][ T1556]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   69.638580][ T1556]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   69.638583][ T1556]  vprintk_emit (kernel/printk/printk.c:2479)
[   69.638586][ T1556]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   69.638589][ T1556]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   69.638594][ T1556]  _printk (kernel/printk/printk.c:2504)
[   69.638598][ T1556]  ? snapshot_read.cold (user.c:?)
[   69.638599][ T1556]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.638602][ T1556]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.638605][ T1556]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.638607][ T1556]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   69.638611][ T1556]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   69.638613][ T1556]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.638616][ T1556]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   69.638618][ T1556]  ? netdev_notice (net/core/dev.c:13194)
[   69.638621][ T1556]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.638624][ T1556]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.638627][ T1556]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   69.638630][ T1556]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.638632][ T1556]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   69.638635][ T1556]  ? register_netdev (net/core/dev.c:11618)
[   69.638636][ T1556]  ? 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))
[   69.638641][ T1556]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   69.638644][ T1556]  ? __kernel_text_address (kernel/extable.c:79)
[   69.638646][ T1556]  ? write_profile (profile.c:?)
[   69.638650][ T1556]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   69.638656][ T1556]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.638659][ T1556]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   69.638666][ T1556]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   69.638667][ T1556]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   69.638669][ T1556]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   69.638673][ T1556]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.638675][ T1556]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.638676][ T1556]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.638679][ T1556]  ? kasan_save_stack (mm/kasan/common.c:58)
[   69.638681][ T1556]  ? kasan_save_stack (mm/kasan/common.c:57)
[   69.638682][ T1556]  ? kasan_save_track (mm/kasan/common.c:78)
[   69.638683][ T1556]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   69.638686][ T1556]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.638688][ T1556]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   69.638690][ T1556]  ? ___sys_sendmsg (net/socket.c:2758)
[   69.638694][ T1556]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.638696][ T1556]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   69.638698][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638700][ T1556]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.638702][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638703][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638704][ T1556]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   69.638707][ T1556]  ? __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)
[   69.638708][ T1556]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   69.638710][ T1556]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   69.638713][ T1556]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   69.638714][ T1556]  ? nla_get_range_signed (lib/nlattr.c:270)
[   69.638719][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638721][ T1556]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   69.638727][ T1556]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   69.638732][ T1556]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.638734][ T1556]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.638738][ T1556]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.638740][ T1556]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.638742][ T1556]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.638744][ T1556]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.638748][ T1556]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.638750][ T1556]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   69.638753][ T1556]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   69.638754][ T1556]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.638759][ T1556]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.638760][ T1556]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.638764][ T1556]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   69.638767][ T1556]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   69.638770][ T1556]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   69.638776][ T1556]  ? 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))
[   69.638778][ T1556]  ? 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))
[   69.638783][ T1556]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   69.638787][ T1556]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   69.638789][ T1556]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.638794][ T1556]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   69.638798][ T1556]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   69.638801][ T1556]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.638803][ T1556]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   69.638808][ T1556]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   69.638811][ T1556]  ____sys_sendmsg (net/socket.c:2713)
[   69.638813][ T1556]  ? copy_msghdr_from_user (net/socket.c:2650)
[   69.638816][ T1556]  ? sock_write_iter (net/socket.c:1269)
[   69.638817][ T1556]  ? move_addr_to_kernel (net/socket.c:258)
[   69.638825][ T1556]  ___sys_sendmsg (net/socket.c:2767)
[   69.638827][ T1556]  ? copy_msghdr_from_user (net/socket.c:2619)
[   69.638843][ T1556]  __sys_sendmsg (net/socket.c:2799)
[   69.638846][ T1556]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   69.638853][ T1556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.638856][ T1556]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   69.638859][ T1556]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   69.638861][ T1556]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   69.638864][ T1556] RIP: 0033:0x7f72230e454e
[   69.638867][ T1556] 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
[   69.638869][ T1556] RSP: 002b:00007ffcabd25e00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   69.638872][ T1556] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f72230e454e
[   69.638874][ T1556] RDX: 0000000000000000 RSI: 00007ffcabd25eb0 RDI: 0000000000000005
[   69.638874][ T1556] RBP: 00007ffcabd25e10 R08: 0000000000000000 R09: 0000000000000000
[   69.638875][ T1556] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c130
[   69.638876][ T1556] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcabd26580
| [   75.804793][ T1677] softirqs last disabled at (17700): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   75.804795][ T1677] Preemption disabled at:
| [   75.804796][ T1677] vprintk_emit (kernel/printk/printk.c:2471)
| [   75.804805][ T1677] Tainted: [W]=WARN
[   75.804805][ T1677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   75.804807][ T1677] Call Trace:
[   75.804809][ T1677]  <TASK>
[   75.804810][ T1677]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   75.804817][ T1677]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   75.804819][ T1677]  __might_resched.cold (kernel/sched/core.c:9234)
[   75.804823][ T1677]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   75.804827][ T1677]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   75.804832][ T1677]  __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))
[   75.804834][ T1677]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   75.804841][ T1677]  ? 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)
[   75.804843][ T1677]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   75.804847][ T1677]  put_chars (drivers/char/virtio_console.c:1176)
[   75.804850][ T1677]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   75.804856][ T1677]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   75.804864][ T1677]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   75.804867][ T1677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   75.804872][ T1677]  console_emit_next_record (kernel/printk/printk.c:3183)
[   75.804876][ T1677]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   75.804878][ T1677]  ? 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))
[   75.804881][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.804884][ T1677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   75.804888][ T1677]  console_flush_one_record (kernel/printk/printk.c:3268)
[   75.804892][ T1677]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   75.804894][ T1677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   75.804900][ T1677]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   75.804902][ T1677]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   75.804904][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.804906][ T1677]  ? 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)
[   75.804910][ T1677]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   75.804911][ T1677]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   75.804914][ T1677]  vprintk_emit (kernel/printk/printk.c:2479)
[   75.804918][ T1677]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   75.804920][ T1677]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   75.804926][ T1677]  _printk (kernel/printk/printk.c:2504)
[   75.804929][ T1677]  ? snapshot_read.cold (user.c:?)
[   75.804931][ T1677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   75.804934][ T1677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   75.804936][ T1677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   75.804938][ T1677]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   75.804943][ T1677]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   75.804945][ T1677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   75.804948][ T1677]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   75.804950][ T1677]  ? netdev_notice (net/core/dev.c:13194)
[   75.804953][ T1677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   75.804956][ T1677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   75.804959][ T1677]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   75.804962][ T1677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   75.804965][ T1677]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   75.804967][ T1677]  ? register_netdev (net/core/dev.c:11618)
[   75.804968][ T1677]  ? 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))
[   75.804974][ T1677]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   75.804976][ T1677]  ? __kernel_text_address (kernel/extable.c:79)
[   75.804979][ T1677]  ? write_profile (profile.c:?)
[   75.804983][ T1677]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   75.804992][ T1677]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   75.804995][ T1677]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   75.804997][ T1677]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   75.804999][ T1677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   75.805001][ T1677]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   75.805004][ T1677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   75.805006][ T1677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   75.805008][ T1677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   75.805010][ T1677]  ? kasan_save_stack (mm/kasan/common.c:58)
[   75.805012][ T1677]  ? kasan_save_stack (mm/kasan/common.c:57)
[   75.805013][ T1677]  ? kasan_save_track (mm/kasan/common.c:78)
[   75.805015][ T1677]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   75.805017][ T1677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   75.805019][ T1677]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   75.805022][ T1677]  ? ___sys_sendmsg (net/socket.c:2758)
[   75.805026][ T1677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   75.805028][ T1677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   75.805030][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.805032][ T1677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   75.805034][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.805035][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.805037][ T1677]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   75.805039][ T1677]  ? __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)
[   75.805040][ T1677]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   75.805042][ T1677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   75.805046][ T1677]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   75.805047][ T1677]  ? nla_get_range_signed (lib/nlattr.c:270)
[   75.805052][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.805054][ T1677]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   75.805059][ T1677]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   75.805065][ T1677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   75.805067][ T1677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   75.805071][ T1677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   75.805073][ T1677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   75.805075][ T1677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   75.805077][ T1677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   75.805080][ T1677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   75.805082][ T1677]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   75.805086][ T1677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   75.805087][ T1677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   75.805091][ T1677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   75.805093][ T1677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   75.805097][ T1677]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   75.805100][ T1677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   75.805103][ T1677]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   75.805109][ T1677]  ? 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))
[   75.805111][ T1677]  ? 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))
[   75.805116][ T1677]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   75.805120][ T1677]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   75.805122][ T1677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   75.805127][ T1677]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   75.805131][ T1677]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   75.805134][ T1677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   75.805136][ T1677]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   75.805141][ T1677]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   75.805144][ T1677]  ____sys_sendmsg (net/socket.c:2713)
[   75.805146][ T1677]  ? copy_msghdr_from_user (net/socket.c:2650)
[   75.805149][ T1677]  ? sock_write_iter (net/socket.c:1269)
[   75.805150][ T1677]  ? move_addr_to_kernel (net/socket.c:258)
[   75.805158][ T1677]  ___sys_sendmsg (net/socket.c:2767)
[   75.805161][ T1677]  ? copy_msghdr_from_user (net/socket.c:2619)
[   75.805176][ T1677]  __sys_sendmsg (net/socket.c:2799)
[   75.805179][ T1677]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   75.805186][ T1677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   75.805189][ T1677]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   75.805192][ T1677]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   75.805194][ T1677]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   75.805197][ T1677] RIP: 0033:0x7f6bea25e54e
[   75.805201][ T1677] 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
[   75.805203][ T1677] RSP: 002b:00007ffd0eed81a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   75.805205][ T1677] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6bea25e54e
[   75.805206][ T1677] RDX: 0000000000000000 RSI: 00007ffd0eed8250 RDI: 0000000000000005
[   75.805207][ T1677] RBP: 00007ffd0eed81b0 R08: 0000000000000000 R09: 0000000000000000
[   75.805208][ T1677] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c137
[   75.805209][ T1677] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd0eed8920
| [   82.397608][ T1812] softirqs last disabled at (17694): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   82.397610][ T1812] Preemption disabled at:
| [   82.397611][ T1812] vprintk_emit (kernel/printk/printk.c:2471)
| [   82.397619][ T1812] Tainted: [W]=WARN
[   82.397620][ T1812] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.397622][ T1812] Call Trace:
[   82.397623][ T1812]  <TASK>
[   82.397625][ T1812]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   82.397630][ T1812]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   82.397632][ T1812]  __might_resched.cold (kernel/sched/core.c:9234)
[   82.397637][ T1812]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   82.397641][ T1812]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   82.397646][ T1812]  __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))
[   82.397648][ T1812]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.397654][ T1812]  ? 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)
[   82.397657][ T1812]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.397661][ T1812]  put_chars (drivers/char/virtio_console.c:1176)
[   82.397663][ T1812]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   82.397669][ T1812]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   82.397677][ T1812]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   82.397680][ T1812]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.397684][ T1812]  console_emit_next_record (kernel/printk/printk.c:3183)
[   82.397688][ T1812]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   82.397690][ T1812]  ? 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))
[   82.397693][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.397696][ T1812]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.397700][ T1812]  console_flush_one_record (kernel/printk/printk.c:3268)
[   82.397704][ T1812]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   82.397706][ T1812]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.397716][ T1812]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   82.397719][ T1812]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   82.397721][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.397723][ T1812]  ? 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)
[   82.397726][ T1812]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   82.397728][ T1812]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   82.397731][ T1812]  vprintk_emit (kernel/printk/printk.c:2479)
[   82.397734][ T1812]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   82.397737][ T1812]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   82.397742][ T1812]  _printk (kernel/printk/printk.c:2504)
[   82.397746][ T1812]  ? snapshot_read.cold (user.c:?)
[   82.397747][ T1812]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.397750][ T1812]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.397753][ T1812]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.397755][ T1812]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   82.397759][ T1812]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   82.397761][ T1812]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   82.397764][ T1812]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   82.397766][ T1812]  ? netdev_notice (net/core/dev.c:13194)
[   82.397769][ T1812]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.397772][ T1812]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.397775][ T1812]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   82.397778][ T1812]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   82.397780][ T1812]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   82.397782][ T1812]  ? register_netdev (net/core/dev.c:11618)
[   82.397784][ T1812]  ? 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))
[   82.397789][ T1812]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   82.397792][ T1812]  ? __kernel_text_address (kernel/extable.c:79)
[   82.397794][ T1812]  ? write_profile (profile.c:?)
[   82.397798][ T1812]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   82.397804][ T1812]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   82.397807][ T1812]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   82.397809][ T1812]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   82.397811][ T1812]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   82.397813][ T1812]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   82.397816][ T1812]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.397818][ T1812]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.397820][ T1812]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.397822][ T1812]  ? kasan_save_stack (mm/kasan/common.c:58)
[   82.397824][ T1812]  ? kasan_save_stack (mm/kasan/common.c:57)
[   82.397825][ T1812]  ? kasan_save_track (mm/kasan/common.c:78)
[   82.397826][ T1812]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   82.397829][ T1812]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.397831][ T1812]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   82.397834][ T1812]  ? ___sys_sendmsg (net/socket.c:2758)
[   82.397837][ T1812]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.397839][ T1812]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.397842][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.397844][ T1812]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.397845][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.397846][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.397848][ T1812]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   82.397850][ T1812]  ? __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)
[   82.397852][ T1812]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   82.397853][ T1812]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.397857][ T1812]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   82.397858][ T1812]  ? nla_get_range_signed (lib/nlattr.c:270)
[   82.397863][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.397865][ T1812]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   82.397870][ T1812]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.397875][ T1812]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.397877][ T1812]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.397882][ T1812]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.397884][ T1812]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.397886][ T1812]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.397887][ T1812]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.397891][ T1812]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.397893][ T1812]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   82.397896][ T1812]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.397897][ T1812]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.397902][ T1812]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.397904][ T1812]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.397907][ T1812]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   82.397910][ T1812]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.397913][ T1812]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   82.397920][ T1812]  ? 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))
[   82.397922][ T1812]  ? 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))
[   82.397926][ T1812]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   82.397930][ T1812]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   82.397933][ T1812]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.397937][ T1812]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   82.397941][ T1812]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   82.397945][ T1812]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.397946][ T1812]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   82.397951][ T1812]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   82.397954][ T1812]  ____sys_sendmsg (net/socket.c:2713)
[   82.397956][ T1812]  ? copy_msghdr_from_user (net/socket.c:2650)
[   82.397959][ T1812]  ? sock_write_iter (net/socket.c:1269)
[   82.397960][ T1812]  ? move_addr_to_kernel (net/socket.c:258)
[   82.397968][ T1812]  ___sys_sendmsg (net/socket.c:2767)
[   82.397970][ T1812]  ? copy_msghdr_from_user (net/socket.c:2619)
[   82.397989][ T1812]  __sys_sendmsg (net/socket.c:2799)
[   82.397992][ T1812]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   82.397999][ T1812]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.398002][ T1812]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   82.398005][ T1812]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   82.398007][ T1812]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.398010][ T1812] RIP: 0033:0x7f5d275f554e
[   82.398013][ T1812] 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
[   82.398015][ T1812] RSP: 002b:00007ffc060a4440 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   82.398018][ T1812] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f5d275f554e
[   82.398019][ T1812] RDX: 0000000000000000 RSI: 00007ffc060a44f0 RDI: 0000000000000005
[   82.398020][ T1812] RBP: 00007ffc060a4450 R08: 0000000000000000 R09: 0000000000000000
[   82.398021][ T1812] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c13d
[   82.398022][ T1812] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc060a4bc0
| [   85.581540][   T69] softirqs last disabled at (1612707): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   85.581542][   T69] Preemption disabled at:
| [   85.581543][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   85.581551][   T69] Tainted: [W]=WARN
[   85.581552][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.581554][   T69] Workqueue: netns cleanup_net
[   85.581557][   T69] Call Trace:
[   85.581558][   T69]  <TASK>
[   85.581560][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   85.581566][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   85.581568][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   85.581572][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   85.581576][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   85.581581][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   85.581583][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   85.581589][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.581592][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   85.581596][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   85.581599][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   85.581600][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   85.581604][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   85.581606][   T69]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   85.581611][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   85.581616][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.581621][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   85.581624][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.581629][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   85.581633][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   85.581635][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   85.581638][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.581640][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.581644][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   85.581649][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   85.581651][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.581656][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   85.581659][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   85.581661][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.581663][   T69]  ? 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)
[   85.581667][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   85.581668][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   85.581671][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   85.581674][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   85.581676][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   85.581678][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   85.581680][   T69]  ? kthread (kernel/kthread.c:436)
[   85.581682][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   85.581685][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   85.581690][   T69]  _printk (kernel/printk/printk.c:2504)
[   85.581693][   T69]  ? snapshot_read.cold (user.c:?)
[   85.581698][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   85.581701][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   85.581705][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   85.581708][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   85.581713][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.581715][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   85.581717][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   85.581719][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.581727][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   85.581731][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   85.581734][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   85.581738][   T69]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   85.581739][   T69]  ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   85.581744][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   85.581748][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   85.581752][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   85.581755][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   85.581759][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   85.581760][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   85.581763][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   85.581768][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   85.581771][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.581775][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.581777][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.581781][   T69]  process_one_work (kernel/workqueue.c:3387)
[   85.581787][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   85.581790][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   85.581798][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   85.581803][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   85.581805][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.581808][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   85.581810][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   85.581812][   T69]  kthread (kernel/kthread.c:436)
[   85.581814][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.581817][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   85.581820][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.581823][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   85.581826][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.581830][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   85.581833][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.585620][ T1958] softirqs last disabled at (18936): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   87.585622][ T1958] Preemption disabled at:
| [   87.585623][ T1958] vprintk_emit (kernel/printk/printk.c:2471)
| [   87.585631][ T1958] Tainted: [W]=WARN
[   87.585632][ T1958] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.585633][ T1958] Call Trace:
[   87.585635][ T1958]  <TASK>
[   87.585636][ T1958]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.585643][ T1958]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   87.585644][ T1958]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.585649][ T1958]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.585653][ T1958]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   87.585657][ T1958]  __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))
[   87.585659][ T1958]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.585666][ T1958]  ? 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)
[   87.585668][ T1958]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.585672][ T1958]  put_chars (drivers/char/virtio_console.c:1176)
[   87.585674][ T1958]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.585681][ T1958]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.585688][ T1958]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.585691][ T1958]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.585696][ T1958]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.585700][ T1958]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.585702][ T1958]  ? 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))
[   87.585705][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.585708][ T1958]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.585712][ T1958]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.585716][ T1958]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.585718][ T1958]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.585723][ T1958]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.585726][ T1958]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.585732][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.585733][ T1958]  ? 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)
[   87.585737][ T1958]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.585739][ T1958]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.585742][ T1958]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.585745][ T1958]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.585747][ T1958]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   87.585752][ T1958]  _printk (kernel/printk/printk.c:2504)
[   87.585756][ T1958]  ? snapshot_read.cold (user.c:?)
[   87.585757][ T1958]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   87.585760][ T1958]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   87.585763][ T1958]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   87.585765][ T1958]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   87.585769][ T1958]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   87.585772][ T1958]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   87.585774][ T1958]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   87.585777][ T1958]  ? netdev_notice (net/core/dev.c:13194)
[   87.585779][ T1958]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.585782][ T1958]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.585785][ T1958]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   87.585788][ T1958]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   87.585790][ T1958]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   87.585792][ T1958]  ? register_netdev (net/core/dev.c:11618)
[   87.585794][ T1958]  ? 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))
[   87.585799][ T1958]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   87.585802][ T1958]  ? __kernel_text_address (kernel/extable.c:79)
[   87.585804][ T1958]  ? write_profile (profile.c:?)
[   87.585808][ T1958]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   87.585814][ T1958]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   87.585818][ T1958]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   87.585820][ T1958]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   87.585821][ T1958]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   87.585823][ T1958]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   87.585826][ T1958]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   87.585828][ T1958]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   87.585830][ T1958]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   87.585832][ T1958]  ? kasan_save_stack (mm/kasan/common.c:58)
[   87.585834][ T1958]  ? kasan_save_stack (mm/kasan/common.c:57)
[   87.585835][ T1958]  ? kasan_save_track (mm/kasan/common.c:78)
[   87.585836][ T1958]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.585838][ T1958]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.585840][ T1958]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   87.585843][ T1958]  ? ___sys_sendmsg (net/socket.c:2758)
[   87.585847][ T1958]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.585849][ T1958]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.585852][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.585853][ T1958]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.585855][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.585856][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.585858][ T1958]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   87.585860][ T1958]  ? __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)
[   87.585861][ T1958]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   87.585863][ T1958]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.585867][ T1958]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   87.585868][ T1958]  ? nla_get_range_signed (lib/nlattr.c:270)
[   87.585873][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.585875][ T1958]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   87.585880][ T1958]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.585885][ T1958]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.585887][ T1958]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.585891][ T1958]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.585893][ T1958]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.585895][ T1958]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.585897][ T1958]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.585901][ T1958]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.585903][ T1958]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.585906][ T1958]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.585907][ T1958]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.585912][ T1958]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.585914][ T1958]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.585917][ T1958]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.585920][ T1958]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.585923][ T1958]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.585930][ T1958]  ? 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))
[   87.585932][ T1958]  ? 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))
[   87.585936][ T1958]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.585940][ T1958]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.585943][ T1958]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   87.585947][ T1958]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.585951][ T1958]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   87.585955][ T1958]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.585956][ T1958]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   87.585962][ T1958]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   87.585964][ T1958]  ____sys_sendmsg (net/socket.c:2713)
[   87.585967][ T1958]  ? copy_msghdr_from_user (net/socket.c:2650)
[   87.585969][ T1958]  ? sock_write_iter (net/socket.c:1269)
[   87.585971][ T1958]  ? move_addr_to_kernel (net/socket.c:258)
[   87.585978][ T1958]  ___sys_sendmsg (net/socket.c:2767)
[   87.585981][ T1958]  ? copy_msghdr_from_user (net/socket.c:2619)
[   87.585999][ T1958]  __sys_sendmsg (net/socket.c:2799)
[   87.586002][ T1958]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   87.586008][ T1958]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.586012][ T1958]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.586014][ T1958]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   87.586017][ T1958]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.586019][ T1958] RIP: 0033:0x7f970627e54e
[   87.586023][ T1958] 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
[   87.586025][ T1958] RSP: 002b:00007ffe3801f7e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.586027][ T1958] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f970627e54e
[   87.586029][ T1958] RDX: 0000000000000000 RSI: 00007ffe3801f890 RDI: 0000000000000005
[   87.586030][ T1958] RBP: 00007ffe3801f7f0 R08: 0000000000000000 R09: 0000000000000000
[   87.586030][ T1958] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c142
[   87.586031][ T1958] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3801ff60
| [   91.671448][   T69] softirqs last disabled at (1786713): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   91.671450][   T69] Preemption disabled at:
| [   91.671451][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   91.671459][   T69] Tainted: [W]=WARN
[   91.671460][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   91.671462][   T69] Workqueue: netns cleanup_net
[   91.671465][   T69] Call Trace:
[   91.671467][   T69]  <TASK>
[   91.671469][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   91.671475][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   91.671477][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   91.671481][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   91.671485][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   91.671490][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   91.671492][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   91.671499][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   91.671501][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   91.671505][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   91.671508][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   91.671509][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   91.671513][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   91.671515][   T69]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   91.671520][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   91.671524][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.671530][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   91.671533][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.671538][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   91.671542][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   91.671544][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   91.671547][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.671549][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   91.671553][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   91.671557][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   91.671559][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   91.671565][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   91.671567][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   91.671569][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.671571][   T69]  ? 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)
[   91.671575][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   91.671577][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   91.671579][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   91.671583][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   91.671584][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   91.671586][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   91.671588][   T69]  ? kthread (kernel/kthread.c:436)
[   91.671590][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   91.671592][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   91.671597][   T69]  _printk (kernel/printk/printk.c:2504)
[   91.671601][   T69]  ? snapshot_read.cold (user.c:?)
[   91.671605][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   91.671609][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   91.671613][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   91.671616][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   91.671620][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.671622][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   91.671625][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   91.671626][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   91.671629][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   91.671633][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   91.671636][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   91.671639][   T69]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   91.671641][   T69]  ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   91.671646][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   91.671650][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   91.671653][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   91.671657][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   91.671661][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   91.671663][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   91.671666][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   91.671671][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   91.671674][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   91.671678][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   91.671680][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   91.671683][   T69]  process_one_work (kernel/workqueue.c:3387)
[   91.671690][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   91.671693][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   91.671701][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   91.671705][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   91.671707][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   91.671710][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   91.671713][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   91.671715][   T69]  kthread (kernel/kthread.c:436)
[   91.671717][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   91.671720][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   91.671723][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   91.671726][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   91.671729][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   91.671733][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars