======================================
| [    9.426856][   T87] softirqs last disabled at (416466): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [    9.426859][   T87] Preemption disabled at:
| [    9.426859][   T87] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.426868][   T87] Tainted: [W]=WARN
[    9.426869][   T87] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.426870][   T87] Call Trace:
[    9.426872][   T87]  <TASK>
[    9.426874][   T87]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.426879][   T87]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.426880][   T87]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.426885][   T87]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.426889][   T87]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.426894][   T87]  __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))
[    9.426896][   T87]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.426902][   T87]  ? 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)
[    9.426905][   T87]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.426908][   T87]  put_chars (drivers/char/virtio_console.c:1176)
[    9.426912][   T87]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.426913][   T87]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.426917][   T87]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.426923][   T87]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.426929][   T87]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.426931][   T87]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.426933][   T87]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.426937][   T87]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.426941][   T87]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.426942][   T87]  ? 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))
[    9.426945][   T87]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.426947][   T87]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.426951][   T87]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.426954][   T87]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.426955][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.426961][   T87]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.426963][   T87]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.426964][   T87]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.426966][   T87]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.426970][   T87]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.426971][   T87]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.426974][   T87]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.426977][   T87]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.426979][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.426981][   T87]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[    9.426985][   T87]  dev_vprintk_emit (drivers/base/core.c:5000)
[    9.426990][   T87]  ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13))
[    9.426996][   T87]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.427000][   T87]  dev_printk_emit (drivers/base/core.c:5011)
[    9.427002][   T87]  ? dev_vprintk_emit (drivers/base/core.c:5001)
[    9.427006][   T87]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[    9.427009][   T87]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.427011][   T87]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.427014][   T87]  __netdev_printk (net/core/dev.c:13140 (discriminator 4))
[    9.427021][   T87]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[    9.427024][   T87]  ? netdev_notice (net/core/dev.c:13194)
[    9.427027][   T87]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.427030][   T87]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.427032][   T87]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[    9.427036][   T87]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[    9.427039][   T87]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[    9.427041][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427043][   T87]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[    9.427045][   T87]  ? find_held_lock (kernel/locking/lockdep.c:5360)
[    9.427048][   T87]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[    9.427050][   T87]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.427052][   T87]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.427054][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427056][   T87]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[    9.427061][   T87]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[    9.427066][   T87]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[    9.427067][   T87]  ? mark_usage (kernel/locking/lockdep.c:4690)
[    9.427069][   T87]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.427071][   T87]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.427074][   T87]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.427079][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427083][   T87]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.427085][   T87]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[    9.427088][   T87]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.427090][   T87]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.427092][   T87]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.427093][   T87]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.427095][   T87]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[    9.427097][   T87]  ? __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)
[    9.427101][   T87]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[    9.427102][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427104][   T87]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[    9.427107][   T87]  ? mark_usage (kernel/locking/lockdep.c:4690)
[    9.427110][   T87]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[    9.427111][   T87]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.427117][   T87]  ? mark_usage (kernel/locking/lockdep.c:4690)
[    9.427120][   T87]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.427127][   T87]  rtnl_setlink (net/core/rtnetlink.c:3596)
[    9.427131][   T87]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[    9.427132][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427155][   T87]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.427157][   T87]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.427160][   T87]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.427162][   T87]  ? mark_usage (kernel/locking/lockdep.c:4690)
[    9.427164][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427169][   T87]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.427171][   T87]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.427173][   T87]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[    9.427175][   T87]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.427179][   T87]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[    9.427181][   T87]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[    9.427185][   T87]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.427187][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427191][   T87]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.427193][   T87]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.427197][   T87]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[    9.427199][   T87]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.427202][   T87]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.427208][   T87]  ? 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))
[    9.427211][   T87]  ? 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))
[    9.427216][   T87]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.427219][   T87]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.427221][   T87]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.427223][   T87]  ? do_raw_spin_trylock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:93 kernel/locking/spinlock_debug.c:123)
[    9.427227][   T87]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[    9.427231][   T87]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[    9.427234][   T87]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.427237][   T87]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.427241][   T87]  __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4))
[    9.427245][   T87]  ? __ia32_sys_getpeername (net/socket.c:2235)
[    9.427255][   T87]  ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[    9.427261][   T87]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[    9.427263][   T87]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.427266][   T87]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.427268][   T87]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[    9.427270][   T87]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.427271][   T87]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.427274][   T87]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.427276][   T87] RIP: 0033:0x7fb2618bf54e
[    9.427280][   T87] 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
[    9.427282][   T87] RSP: 002b:00007ffff887ccc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.427285][   T87] RAX: ffffffffffffffda RBX: 00005624acf79fa0 RCX: 00007fb2618bf54e
[    9.427286][   T87] RDX: 000000000000002c RSI: 00005624ad0f76c0 RDI: 0000000000000020
[    9.427287][   T87] RBP: 00007ffff887ccd0 R08: 00007ffff887cd20 R09: 0000000000000080
[    9.427288][   T87] R10: 0000000000000000 R11: 0000000000000202 R12: 00005624ad0ff910
[    9.427288][   T87] R13: 00007ffff887ce04 R14: 0000000000000000 R15: 0000000000000000
| [   10.931957][   T81] softirqs last disabled at (905178): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   10.931959][   T81] Preemption disabled at:
| [   10.931960][   T81] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.931968][   T81] Tainted: [W]=WARN
[   10.931969][   T81] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.931971][   T81] Call Trace:
[   10.931972][   T81]  <TASK>
[   10.931974][   T81]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.931978][   T81]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.931980][   T81]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.931985][   T81]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.931988][   T81]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.931993][   T81]  __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))
[   10.931996][   T81]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.932001][   T81]  ? 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)
[   10.932004][   T81]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.932008][   T81]  put_chars (drivers/char/virtio_console.c:1176)
[   10.932011][   T81]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.932013][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.932017][   T81]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.932022][   T81]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.932028][   T81]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.932031][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.932033][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.932037][   T81]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.932040][   T81]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.932042][   T81]  ? 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))
[   10.932044][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.932046][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.932050][   T81]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.932053][   T81]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.932055][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932060][   T81]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.932062][   T81]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.932063][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.932065][   T81]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.932069][   T81]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.932071][   T81]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.932074][   T81]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.932077][   T81]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.932079][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932081][   T81]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[   10.932085][   T81]  dev_vprintk_emit (drivers/base/core.c:5000)
[   10.932090][   T81]  ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13))
[   10.932095][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.932099][   T81]  dev_printk_emit (drivers/base/core.c:5011)
[   10.932101][   T81]  ? dev_vprintk_emit (drivers/base/core.c:5001)
[   10.932105][   T81]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.932108][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.932110][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.932114][   T81]  __netdev_printk (net/core/dev.c:13140 (discriminator 4))
[   10.932120][   T81]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   10.932123][   T81]  ? netdev_notice (net/core/dev.c:13194)
[   10.932126][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.932129][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.932132][   T81]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.932135][   T81]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.932138][   T81]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   10.932141][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932143][   T81]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[   10.932144][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5360)
[   10.932147][   T81]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   10.932149][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.932151][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.932154][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932156][   T81]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   10.932160][   T81]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.932165][   T81]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.932167][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.932168][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.932170][   T81]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.932173][   T81]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.932178][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932182][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.932184][   T81]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[   10.932187][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.932189][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.932191][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.932192][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.932194][   T81]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.932197][   T81]  ? __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)
[   10.932200][   T81]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.932202][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932204][   T81]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[   10.932206][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.932209][   T81]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.932211][   T81]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.932216][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.932219][   T81]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.932226][   T81]  rtnl_setlink (net/core/rtnetlink.c:3596)
[   10.932230][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   10.932232][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932254][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.932256][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.932259][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.932261][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.932263][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932268][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.932270][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.932272][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   10.932274][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.932278][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   10.932280][   T81]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.932284][   T81]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.932286][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932290][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.932292][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.932296][   T81]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.932298][   T81]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.932302][   T81]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.932307][   T81]  ? 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))
[   10.932310][   T81]  ? 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))
[   10.932315][   T81]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.932319][   T81]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.932321][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.932325][   T81]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.932329][   T81]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.932332][   T81]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.932335][   T81]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.932339][   T81]  __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4))
[   10.932343][   T81]  ? __ia32_sys_getpeername (net/socket.c:2235)
[   10.932357][   T81]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   10.932359][   T81]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.932362][   T81]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.932365][   T81]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   10.932367][   T81]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.932368][   T81]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.932371][   T81]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.932373][   T81] RIP: 0033:0x7fb2618bf54e
[   10.932377][   T81] 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
[   10.932379][   T81] RSP: 002b:00007ffff887ccc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.932382][   T81] RAX: ffffffffffffffda RBX: 00005624acf79fa0 RCX: 00007fb2618bf54e
[   10.932383][   T81] RDX: 000000000000002c RSI: 00005624acf72760 RDI: 0000000000000014
[   10.932384][   T81] RBP: 00007ffff887ccd0 R08: 00007ffff887cd20 R09: 0000000000000080
[   10.932385][   T81] R10: 0000000000000000 R11: 0000000000000202 R12: 00005624ad0d9050
[   10.932385][   T81] R13: 00007ffff887ce04 R14: 0000000000000000 R15: 0000000000000000
| [   13.966076][   T81] softirqs last disabled at (1387276): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   13.966079][   T81] Preemption disabled at:
| [   13.966079][   T81] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.966088][   T81] Tainted: [W]=WARN
[   13.966089][   T81] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.966090][   T81] Call Trace:
[   13.966092][   T81]  <TASK>
[   13.966094][   T81]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.966099][   T81]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.966100][   T81]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.966105][   T81]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.966108][   T81]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.966114][   T81]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.966116][   T81]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.966122][   T81]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.966125][   T81]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.966129][   T81]  put_chars (drivers/char/virtio_console.c:1176)
[   13.966133][   T81]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.966134][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.966138][   T81]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.966144][   T81]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.966151][   T81]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.966153][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.966155][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.966159][   T81]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.966163][   T81]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.966164][   T81]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.966167][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.966169][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.966173][   T81]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.966177][   T81]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.966178][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966184][   T81]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.966186][   T81]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.966187][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.966189][   T81]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.966193][   T81]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.966195][   T81]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.966198][   T81]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.966201][   T81]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.966203][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966205][   T81]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[   13.966210][   T81]  dev_vprintk_emit (drivers/base/core.c:5000)
[   13.966215][   T81]  ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13))
[   13.966220][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.966224][   T81]  dev_printk_emit (drivers/base/core.c:5011)
[   13.966227][   T81]  ? dev_vprintk_emit (drivers/base/core.c:5001)
[   13.966231][   T81]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.966234][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.966236][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.966240][   T81]  __netdev_printk (net/core/dev.c:13140 (discriminator 4))
[   13.966246][   T81]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   13.966249][   T81]  ? netdev_notice (net/core/dev.c:13194)
[   13.966252][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.966256][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.966258][   T81]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.966262][   T81]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.966265][   T81]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   13.966268][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966270][   T81]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[   13.966272][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5360)
[   13.966275][   T81]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   13.966277][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.966279][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.966282][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966283][   T81]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   13.966289][   T81]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.966293][   T81]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.966295][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.966297][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.966299][   T81]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.966302][   T81]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.966306][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966311][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.966313][   T81]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[   13.966316][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.966318][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.966320][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.966321][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.966323][   T81]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.966326][   T81]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.966329][   T81]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.966331][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966333][   T81]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[   13.966336][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.966339][   T81]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.966341][   T81]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.966346][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.966350][   T81]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.966357][   T81]  rtnl_setlink (net/core/rtnetlink.c:3596)
[   13.966361][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   13.966363][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966386][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.966388][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.966391][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.966393][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.966395][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966400][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.966402][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.966404][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   13.966407][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.966411][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   13.966413][   T81]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.966417][   T81]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.966419][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966430][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.966432][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.966436][   T81]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.966438][   T81]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.966442][   T81]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.966448][   T81]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.966451][   T81]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.966456][   T81]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.966459][   T81]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.966461][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.966466][   T81]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.966470][   T81]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.966473][   T81]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.966476][   T81]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.966480][   T81]  __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4))
[   13.966484][   T81]  ? __ia32_sys_getpeername (net/socket.c:2235)
[   13.966495][   T81]  ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[   13.966501][   T81]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   13.966503][   T81]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.966507][   T81]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.966509][   T81]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   13.966510][   T81]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.966512][   T81]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.966515][   T81]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.966517][   T81] RIP: 0033:0x7fb2618bf54e
[   13.966521][   T81] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.966523][   T81] RSP: 002b:00007ffff887ccc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   13.966525][   T81] RAX: ffffffffffffffda RBX: 00005624acf79fa0 RCX: 00007fb2618bf54e
[   13.966527][   T81] RDX: 000000000000002c RSI: 00005624acf7a900 RDI: 0000000000000014
[   13.966528][   T81] RBP: 00007ffff887ccd0 R08: 00007ffff887cd20 R09: 0000000000000080
[   13.966528][   T81] R10: 0000000000000000 R11: 0000000000000202 R12: 00005624ad0e0b60
[   13.966529][   T81] R13: 00007ffff887ce04 R14: 0000000000000000 R15: 0000000000000000
| [   15.909912][   T81] softirqs last disabled at (1882526): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   15.909915][   T81] Preemption disabled at:
| [   15.909915][   T81] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.909924][   T81] Tainted: [W]=WARN
[   15.909925][   T81] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.909926][   T81] Call Trace:
[   15.909928][   T81]  <TASK>
[   15.909930][   T81]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.909934][   T81]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.909936][   T81]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.909941][   T81]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.909944][   T81]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.909949][   T81]  __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))
[   15.909952][   T81]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.909958][   T81]  ? 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)
[   15.909961][   T81]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.909964][   T81]  put_chars (drivers/char/virtio_console.c:1176)
[   15.909968][   T81]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.909969][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.909974][   T81]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.909979][   T81]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.909986][   T81]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.909988][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.909990][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.909994][   T81]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.909998][   T81]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.909999][   T81]  ? 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))
[   15.910002][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.910004][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.910008][   T81]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.910011][   T81]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.910013][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910018][   T81]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.910020][   T81]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.910022][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.910023][   T81]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.910027][   T81]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.910029][   T81]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.910032][   T81]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.910035][   T81]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.910037][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910039][   T81]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[   15.910044][   T81]  dev_vprintk_emit (drivers/base/core.c:5000)
[   15.910049][   T81]  ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13))
[   15.910054][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.910058][   T81]  dev_printk_emit (drivers/base/core.c:5011)
[   15.910061][   T81]  ? dev_vprintk_emit (drivers/base/core.c:5001)
[   15.910065][   T81]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.910068][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.910070][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.910074][   T81]  __netdev_printk (net/core/dev.c:13140 (discriminator 4))
[   15.910080][   T81]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   15.910083][   T81]  ? netdev_notice (net/core/dev.c:13194)
[   15.910086][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.910089][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.910092][   T81]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.910095][   T81]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   15.910098][   T81]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   15.910101][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910103][   T81]  ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898)
[   15.910105][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5360)
[   15.910108][   T81]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   15.910110][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.910112][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.910115][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910117][   T81]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   15.910122][   T81]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   15.910126][   T81]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.910128][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.910130][   T81]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.910132][   T81]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.910135][   T81]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.910140][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910144][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.910146][   T81]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[   15.910149][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.910151][   T81]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.910153][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.910154][   T81]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.910156][   T81]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.910159][   T81]  ? __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)
[   15.910162][   T81]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.910164][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910166][   T81]  ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586)
[   15.910169][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.910171][   T81]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.910173][   T81]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.910179][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.910182][   T81]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   15.910189][   T81]  rtnl_setlink (net/core/rtnetlink.c:3596)
[   15.910193][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   15.910195][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910218][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.910220][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.910223][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.910225][   T81]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.910227][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910232][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.910234][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.910236][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   15.910238][   T81]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.910242][   T81]  ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1))
[   15.910245][   T81]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.910249][   T81]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.910250][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910255][   T81]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.910257][   T81]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.910261][   T81]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.910263][   T81]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.910267][   T81]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.910273][   T81]  ? 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))
[   15.910275][   T81]  ? 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))
[   15.910280][   T81]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.910284][   T81]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.910286][   T81]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.910291][   T81]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.910294][   T81]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.910297][   T81]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.910301][   T81]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.910305][   T81]  __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4))
[   15.910308][   T81]  ? __ia32_sys_getpeername (net/socket.c:2235)
[   15.910323][   T81]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   15.910325][   T81]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.910328][   T81]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   15.910331][   T81]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   15.910332][   T81]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.910334][   T81]  ? irq_exit_rcu (kernel/softirq.c:786)
[   15.910338][   T81]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.910340][   T81] RIP: 0033:0x7fb2618bf54e
[   15.910344][   T81] 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
[   15.910346][   T81] RSP: 002b:00007ffff887ccc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   15.910349][   T81] RAX: ffffffffffffffda RBX: 00005624acf79fa0 RCX: 00007fb2618bf54e
[   15.910350][   T81] RDX: 000000000000002c RSI: 00005624acf72230 RDI: 0000000000000014
[   15.910351][   T81] RBP: 00007ffff887ccd0 R08: 00007ffff887cd20 R09: 0000000000000080
[   15.910352][   T81] R10: 0000000000000000 R11: 0000000000000202 R12: 00005624ad0e8120
[   15.910352][   T81] R13: 00007ffff887ce04 R14: 0000000000000000 R15: 0000000000000000
| [   18.483352][  T501] softirqs last disabled at (30192): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   18.483355][  T501] Preemption disabled at:
| [   18.483356][  T501] 0x0
| [   18.483365][  T501] Tainted: [W]=WARN
[   18.483366][  T501] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.483368][  T501] Call Trace:
[   18.483369][  T501]  <TASK>
[   18.483371][  T501]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.483376][  T501]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.483381][  T501]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.483384][  T501]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.483389][  T501]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   18.483391][  T501]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.483397][  T501]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.483400][  T501]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.483403][  T501]  put_chars (drivers/char/virtio_console.c:1176)
[   18.483406][  T501]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.483408][  T501]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.483412][  T501]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.483417][  T501]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.483423][  T501]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.483425][  T501]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.483428][  T501]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.483432][  T501]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.483435][  T501]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.483436][  T501]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   18.483439][  T501]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.483441][  T501]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.483444][  T501]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.483448][  T501]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.483449][  T501]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.483458][  T501]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.483460][  T501]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.483462][  T501]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.483463][  T501]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.483467][  T501]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.483469][  T501]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.483472][  T501]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.483475][  T501]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.483478][  T501]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.483481][  T501]  _printk (kernel/printk/printk.c:2504)
[   18.483485][  T501]  ? snapshot_read.cold (user.c:?)
[   18.483488][  T501]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   18.483490][  T501]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   18.483494][  T501]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   18.483497][  T501]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   18.483501][  T501]  ? exit_notify (kernel/exit.c:780)
[   18.483502][  T501]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.483505][  T501]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.483508][  T501]  do_group_exit (kernel/exit.c:1151)
[   18.483511][  T501]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   18.483513][  T501]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   18.483516][  T501]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.483519][  T501]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.483522][  T501]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.483525][  T501] RIP: 0033:0x7f99eeaf51b8
[   18.483527][  T501] Code: Unable to access opcode bytes at 0x7f99eeaf518e.

Code starting with the faulting instruction
===========================================
[   18.483528][  T501] RSP: 002b:00007ffd9900b838 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   18.483530][  T501] RAX: ffffffffffffffda RBX: 00007f99eec25f88 RCX: 00007f99eeaf51b8
[   18.483531][  T501] RDX: 00007f99ee83ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   18.483532][  T501] RBP: 00007ffd9900b890 R08: 0000000000000000 R09: 0000000000000050
[   18.483533][  T501] R10: 00007ffd9900b650 R11: 0000000000000246 R12: 0000000000000001


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