======================================
| [   12.341606][  T258] softirqs last disabled at (51930): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.341608][  T258] Preemption disabled at:
| [   12.341609][  T258] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.341617][  T258] Tainted: [W]=WARN
[   12.341618][  T258] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.341620][  T258] Call Trace:
[   12.341622][  T258]  <TASK>
[   12.341623][  T258]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.341629][  T258]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.341630][  T258]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.341635][  T258]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.341639][  T258]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.341644][  T258]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.341646][  T258]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.341652][  T258]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.341655][  T258]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.341659][  T258]  put_chars (drivers/char/virtio_console.c:1176)
[   12.341661][  T258]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.341667][  T258]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.341675][  T258]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.341678][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.341682][  T258]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.341686][  T258]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.341688][  T258]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.341691][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341694][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.341698][  T258]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.341702][  T258]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.341703][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.341709][  T258]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.341712][  T258]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.341713][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341715][  T258]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.341719][  T258]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.341720][  T258]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.341723][  T258]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.341726][  T258]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.341728][  T258]  ? save_trace (kernel/locking/lockdep.c:589)
[   12.341732][  T258]  _printk (kernel/printk/printk.c:2504)
[   12.341736][  T258]  ? snapshot_read.cold (user.c:?)
[   12.341739][  T258]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.341741][  T258]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.341745][  T258]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.341748][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.341750][  T258]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.341753][  T258]  ? netdev_notice (net/core/dev.c:13194)
[   12.341755][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.341758][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.341761][  T258]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.341764][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.341766][  T258]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.341768][  T258]  ? register_netdev (net/core/dev.c:11618)
[   12.341769][  T258]  ? 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))
[   12.341775][  T258]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.341777][  T258]  ? __kernel_text_address (kernel/extable.c:79)
[   12.341780][  T258]  ? write_profile (profile.c:?)
[   12.341784][  T258]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.341789][  T258]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.341793][  T258]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.341795][  T258]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.341796][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.341799][  T258]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.341802][  T258]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.341804][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.341806][  T258]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.341808][  T258]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.341810][  T258]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.341811][  T258]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.341813][  T258]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.341815][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.341820][  T258]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.341823][  T258]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.341827][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.341829][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.341831][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341833][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.341835][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341836][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341837][  T258]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.341839][  T258]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.341842][  T258]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.341844][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.341847][  T258]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.341849][  T258]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.341854][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341856][  T258]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.341861][  T258]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.341866][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.341868][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.341873][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.341875][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.341877][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.341878][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.341882][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.341884][  T258]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.341887][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.341888][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.341893][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.341895][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.341898][  T258]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.341902][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.341907][  T258]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.341915][  T258]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.341917][  T258]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.341922][  T258]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.341926][  T258]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.341928][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.341932][  T258]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.341936][  T258]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.341940][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.341942][  T258]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.341947][  T258]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.341950][  T258]  ____sys_sendmsg (net/socket.c:2713)
[   12.341952][  T258]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.341955][  T258]  ? sock_write_iter (net/socket.c:1269)
[   12.341956][  T258]  ? move_addr_to_kernel (net/socket.c:258)
[   12.341964][  T258]  ___sys_sendmsg (net/socket.c:2767)
[   12.341966][  T258]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.341982][  T258]  __sys_sendmsg (net/socket.c:2799)
[   12.341985][  T258]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.341991][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.341994][  T258]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.341997][  T258]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.342000][  T258]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.342002][  T258] RIP: 0033:0x7fddb8a6a54e
[   12.342006][  T258] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.342008][  T258] RSP: 002b:00007fff23b87950 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.342015][  T258] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fddb8a6a54e
[   12.342017][  T258] RDX: 0000000000000000 RSI: 00007fff23b87a00 RDI: 0000000000000005
[   12.342018][  T258] RBP: 00007fff23b87960 R08: 0000000000000000 R09: 0000000000000000
[   12.342019][  T258] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de98
[   12.342020][  T258] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff23b880c0
| [   13.373604][  T277] softirqs last disabled at (33446): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   13.373607][  T277] Preemption disabled at:
| [   13.373607][  T277] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.373616][  T277] Tainted: [W]=WARN
[   13.373617][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.373618][  T277] Call Trace:
[   13.373620][  T277]  <TASK>
[   13.373621][  T277]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.373627][  T277]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.373629][  T277]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.373634][  T277]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.373638][  T277]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.373643][  T277]  __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))
[   13.373645][  T277]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.373651][  T277]  ? 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)
[   13.373654][  T277]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.373658][  T277]  put_chars (drivers/char/virtio_console.c:1176)
[   13.373660][  T277]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.373667][  T277]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.373674][  T277]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.373678][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.373682][  T277]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.373686][  T277]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.373688][  T277]  ? 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))
[   13.373691][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.373694][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.373698][  T277]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.373702][  T277]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.373704][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.373710][  T277]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.373713][  T277]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.373715][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.373716][  T277]  ? 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)
[   13.373720][  T277]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.373722][  T277]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.373725][  T277]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.373728][  T277]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.373731][  T277]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   13.373736][  T277]  _printk (kernel/printk/printk.c:2504)
[   13.373739][  T277]  ? snapshot_read.cold (user.c:?)
[   13.373741][  T277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.373744][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.373747][  T277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.373749][  T277]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   13.373753][  T277]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   13.373755][  T277]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.373758][  T277]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   13.373761][  T277]  ? netdev_notice (net/core/dev.c:13194)
[   13.373763][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.373766][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.373769][  T277]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.373773][  T277]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.373775][  T277]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   13.373777][  T277]  ? register_netdev (net/core/dev.c:11618)
[   13.373778][  T277]  ? 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))
[   13.373784][  T277]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   13.373786][  T277]  ? __kernel_text_address (kernel/extable.c:79)
[   13.373789][  T277]  ? write_profile (profile.c:?)
[   13.373793][  T277]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   13.373798][  T277]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.373801][  T277]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.373804][  T277]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.373805][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.373807][  T277]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.373810][  T277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.373812][  T277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.373814][  T277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.373820][  T277]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.373822][  T277]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.373823][  T277]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.373824][  T277]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.373827][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.373829][  T277]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   13.373831][  T277]  ? ___sys_sendmsg (net/socket.c:2758)
[   13.373835][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.373837][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.373840][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.373842][  T277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.373843][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.373844][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.373846][  T277]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.373849][  T277]  ? __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)
[   13.373850][  T277]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.373852][  T277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.373855][  T277]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.373856][  T277]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.373861][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.373864][  T277]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.373869][  T277]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.373874][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.373876][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.373881][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.373883][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.373885][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.373887][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.373890][  T277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.373892][  T277]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.373896][  T277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.373897][  T277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.373905][  T277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.373908][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.373914][  T277]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.373917][  T277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.373920][  T277]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.373927][  T277]  ? 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))
[   13.373929][  T277]  ? 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))
[   13.373933][  T277]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.373937][  T277]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.373940][  T277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.373944][  T277]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.373948][  T277]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.373952][  T277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.373954][  T277]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   13.373960][  T277]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   13.373962][  T277]  ____sys_sendmsg (net/socket.c:2713)
[   13.373965][  T277]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.373967][  T277]  ? sock_write_iter (net/socket.c:1269)
[   13.373969][  T277]  ? move_addr_to_kernel (net/socket.c:258)
[   13.373976][  T277]  ___sys_sendmsg (net/socket.c:2767)
[   13.373979][  T277]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.373995][  T277]  __sys_sendmsg (net/socket.c:2799)
[   13.373998][  T277]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.374004][  T277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.374007][  T277]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.374011][  T277]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.374018][  T277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.374021][  T277] RIP: 0033:0x7fca3761f54e
[   13.374025][  T277] 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
[   13.374027][  T277] RSP: 002b:00007ffd76bb8810 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.374030][  T277] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fca3761f54e
[   13.374031][  T277] RDX: 0000000000000000 RSI: 00007ffd76bb88c0 RDI: 0000000000000005
[   13.374032][  T277] RBP: 00007ffd76bb8820 R08: 0000000000000000 R09: 0000000000000000
[   13.374033][  T277] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de99
[   13.374034][  T277] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd76bb8f80
| [   18.310995][   T12] softirqs last disabled at (32806): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   18.310997][   T12] Preemption disabled at:
| [   18.310998][   T12] 0x0
| [   18.311008][   T12] Tainted: [W]=WARN
[   18.311009][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.311011][   T12] Workqueue: netns cleanup_net
[   18.311015][   T12] Call Trace:
[   18.311016][   T12]  <TASK>
[   18.311018][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.311033][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.311038][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.311042][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.311046][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   18.311048][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.311055][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.311058][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.311062][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   18.311064][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.311071][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.311079][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.311082][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.311086][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.311091][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.311093][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   18.311096][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.311099][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.311103][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.311107][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.311109][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.311115][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.311118][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.311120][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.311122][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   18.311125][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.311127][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.311130][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.311133][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.311135][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   18.311140][   T12]  _printk (kernel/printk/printk.c:2504)
[   18.311144][   T12]  ? snapshot_read.cold (user.c:?)
[   18.311152][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   18.311157][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   18.311160][   T12]  br_device_event (net/bridge/br.c:111)
[   18.311162][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   18.311166][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[   18.311172][   T12]  notifier_call_chain (kernel/notifier.c:85)
[   18.311178][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   18.311181][   T12]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   18.311185][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[   18.311188][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   18.311192][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   18.311195][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   18.311197][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.311199][   T12]  ? kthread (kernel/kthread.c:436)
[   18.311200][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   18.311203][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   18.311206][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   18.311214][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   18.311218][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   18.311220][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.311223][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   18.311227][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   18.311231][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   18.311234][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.311235][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.311238][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   18.311243][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   18.311246][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.311250][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.311252][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.311256][   T12]  process_one_work (kernel/workqueue.c:3387)
[   18.311262][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   18.311265][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.311273][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.311281][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   18.311283][   T12]  kthread (kernel/kthread.c:436)
[   18.311285][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.311288][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.311291][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.311294][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   18.311298][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.311303][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.311308][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   21.559423][  T397] softirqs last disabled at (39390): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   21.559426][  T397] Preemption disabled at:
| [   21.559426][  T397] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.559435][  T397] Tainted: [W]=WARN
[   21.559435][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.559437][  T397] Call Trace:
[   21.559438][  T397]  <TASK>
[   21.559440][  T397]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.559446][  T397]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.559448][  T397]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.559452][  T397]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.559457][  T397]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.559461][  T397]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.559463][  T397]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.559469][  T397]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.559472][  T397]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.559475][  T397]  put_chars (drivers/char/virtio_console.c:1176)
[   21.559478][  T397]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.559484][  T397]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.559492][  T397]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.559495][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.559499][  T397]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.559503][  T397]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.559505][  T397]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   21.559509][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559511][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.559515][  T397]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.559519][  T397]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.559521][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.559526][  T397]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.559529][  T397]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.559531][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559533][  T397]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   21.559537][  T397]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.559538][  T397]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.559541][  T397]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.559544][  T397]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.559547][  T397]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   21.559552][  T397]  _printk (kernel/printk/printk.c:2504)
[   21.559556][  T397]  ? snapshot_read.cold (user.c:?)
[   21.559557][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.559560][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.559563][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.559565][  T397]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   21.559569][  T397]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   21.559572][  T397]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   21.559574][  T397]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   21.559577][  T397]  ? netdev_notice (net/core/dev.c:13194)
[   21.559580][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.559583][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.559585][  T397]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.559589][  T397]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   21.559591][  T397]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   21.559593][  T397]  ? register_netdev (net/core/dev.c:11618)
[   21.559594][  T397]  ? 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))
[   21.559600][  T397]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   21.559602][  T397]  ? __kernel_text_address (kernel/extable.c:79)
[   21.559605][  T397]  ? write_profile (profile.c:?)
[   21.559609][  T397]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   21.559615][  T397]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   21.559618][  T397]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.559620][  T397]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.559621][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.559623][  T397]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.559627][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.559628][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.559630][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.559633][  T397]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.559635][  T397]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.559636][  T397]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.559637][  T397]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.559639][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.559641][  T397]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.559644][  T397]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.559648][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.559650][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.559653][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559654][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.559656][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559657][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559659][  T397]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.559661][  T397]  ? __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)
[   21.559662][  T397]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.559664][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.559668][  T397]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.559669][  T397]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.559674][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559676][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.559681][  T397]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.559686][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.559688][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.559693][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.559695][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.559697][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.559698][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.559702][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.559704][  T397]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.559708][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.559709][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.559713][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.559715][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.559719][  T397]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.559722][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.559725][  T397]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.559731][  T397]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.559733][  T397]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.559738][  T397]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.559742][  T397]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.559744][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.559748][  T397]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.559752][  T397]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.559756][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.559758][  T397]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.559763][  T397]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.559766][  T397]  ____sys_sendmsg (net/socket.c:2713)
[   21.559768][  T397]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.559771][  T397]  ? sock_write_iter (net/socket.c:1269)
[   21.559772][  T397]  ? move_addr_to_kernel (net/socket.c:258)
[   21.559780][  T397]  ___sys_sendmsg (net/socket.c:2767)
[   21.559782][  T397]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.559798][  T397]  __sys_sendmsg (net/socket.c:2799)
[   21.559801][  T397]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.559807][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.559810][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.559813][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.559816][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.559821][  T397] RIP: 0033:0x7f5a9f1d054e
[   21.559825][  T397] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.559826][  T397] RSP: 002b:00007ffd52167a70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.559829][  T397] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f5a9f1d054e
[   21.559830][  T397] RDX: 0000000000000000 RSI: 00007ffd52167b20 RDI: 0000000000000005
[   21.559831][  T397] RBP: 00007ffd52167a80 R08: 0000000000000000 R09: 0000000000000000
[   21.559832][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dea1
[   21.559833][  T397] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd521681e0
| [   22.705458][  T420] softirqs last disabled at (21610): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.705461][  T420] Preemption disabled at:
| [   22.705461][  T420] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.705470][  T420] Tainted: [W]=WARN
[   22.705471][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.705473][  T420] Call Trace:
[   22.705474][  T420]  <TASK>
[   22.705476][  T420]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.705482][  T420]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.705483][  T420]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.705488][  T420]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.705493][  T420]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.705498][  T420]  __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))
[   22.705499][  T420]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.705506][  T420]  ? 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)
[   22.705509][  T420]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.705512][  T420]  put_chars (drivers/char/virtio_console.c:1176)
[   22.705515][  T420]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.705516][  T420]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.705520][  T420]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.705526][  T420]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.705534][  T420]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.705537][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705539][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.705543][  T420]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.705548][  T420]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.705550][  T420]  ? 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))
[   22.705553][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705555][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.705559][  T420]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.705563][  T420]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.705565][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.705571][  T420]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.705574][  T420]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.705576][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705578][  T420]  ? 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)
[   22.705582][  T420]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.705584][  T420]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.705587][  T420]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.705590][  T420]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.705592][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.705595][  T420]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.705599][  T420]  _printk (kernel/printk/printk.c:2504)
[   22.705602][  T420]  ? snapshot_read.cold (user.c:?)
[   22.705606][  T420]  ? br_multicast_flood (??:?)
[   22.705610][  T420]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.705611][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.705613][  T420]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.705617][  T420]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   22.705622][  T420]  br_init_port (net/bridge/br_stp_if.c:39)
[   22.705624][  T420]  new_nbp (net/bridge/br_if.c:449)
[   22.705628][  T420]  br_add_if (net/bridge/br_if.c:592)
[   22.705631][  T420]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.705635][  T420]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.705640][  T420]  do_set_master (net/core/rtnetlink.c:3071)
[   22.705644][  T420]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.705648][  T420]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.705651][  T420]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.705652][  T420]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.705655][  T420]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.705659][  T420]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.705661][  T420]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.705663][  T420]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.705665][  T420]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.705668][  T420]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.705669][  T420]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.705670][  T420]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.705673][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.705675][  T420]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.705677][  T420]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.705684][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.705686][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.705689][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705691][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.705692][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705693][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705695][  T420]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.705698][  T420]  ? __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)
[   22.705701][  T420]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.705703][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.705706][  T420]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.705708][  T420]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.705713][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705715][  T420]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.705721][  T420]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.705726][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.705728][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.705733][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.705735][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.705738][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.705739][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.705743][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.705746][  T420]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.705749][  T420]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.705750][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.705755][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.705757][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.705761][  T420]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.705764][  T420]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.705767][  T420]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.705774][  T420]  ? 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))
[   22.705776][  T420]  ? 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))
[   22.705781][  T420]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.705785][  T420]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.705788][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.705793][  T420]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.705797][  T420]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.705801][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.705803][  T420]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.705808][  T420]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.705811][  T420]  ____sys_sendmsg (net/socket.c:2713)
[   22.705814][  T420]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.705816][  T420]  ? sock_write_iter (net/socket.c:1269)
[   22.705818][  T420]  ? move_addr_to_kernel (net/socket.c:258)
[   22.705826][  T420]  ___sys_sendmsg (net/socket.c:2767)
[   22.705829][  T420]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.705846][  T420]  __sys_sendmsg (net/socket.c:2799)
[   22.705849][  T420]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.705856][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.705859][  T420]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.705862][  T420]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.705865][  T420]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.705867][  T420] RIP: 0033:0x7fecd96a254e
[   22.705871][  T420] 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
[   22.705873][  T420] RSP: 002b:00007ffe7e0e04d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.705876][  T420] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fecd96a254e
[   22.705878][  T420] RDX: 0000000000000000 RSI: 00007ffe7e0e0580 RDI: 0000000000000005
[   22.705878][  T420] RBP: 00007ffe7e0e04e0 R08: 0000000000000000 R09: 0000000000000000
[   22.705879][  T420] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dea2
[   22.705880][  T420] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe7e0e0c50
| [   27.439559][   T12] softirqs last disabled at (198528): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   27.439561][   T12] Preemption disabled at:
| [   27.439562][   T12] 0x0
| [   27.439572][   T12] Tainted: [W]=WARN
[   27.439573][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.439574][   T12] Workqueue: netns cleanup_net
[   27.439577][   T12] Call Trace:
[   27.439579][   T12]  <TASK>
[   27.439581][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.439588][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.439592][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.439596][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.439601][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.439603][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.439610][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.439613][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.439617][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   27.439619][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.439626][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.439634][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.439637][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.439642][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.439646][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.439648][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   27.439651][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.439654][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.439658][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.439663][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.439665][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.439675][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.439679][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.439682][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.439685][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   27.439691][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.439694][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.439699][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.439704][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.439706][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.439710][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.439713][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.439719][   T12]  _printk (kernel/printk/printk.c:2504)
[   27.439722][   T12]  ? snapshot_read.cold (user.c:?)
[   27.439730][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   27.439735][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   27.439739][   T12]  br_device_event (net/bridge/br.c:111)
[   27.439741][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   27.439745][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[   27.439751][   T12]  notifier_call_chain (kernel/notifier.c:85)
[   27.439756][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   27.439760][   T12]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   27.439763][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[   27.439766][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   27.439770][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   27.439773][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   27.439775][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   27.439777][   T12]  ? kthread (kernel/kthread.c:436)
[   27.439779][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   27.439782][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   27.439785][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   27.439792][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   27.439796][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   27.439798][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.439801][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   27.439805][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   27.439809][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.439812][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.439813][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.439820][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   27.439825][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   27.439828][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.439832][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.439834][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.439837][   T12]  process_one_work (kernel/workqueue.c:3387)
[   27.439844][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   27.439847][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.439855][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   27.439862][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   27.439864][   T12]  kthread (kernel/kthread.c:436)
[   27.439866][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.439869][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   27.439872][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.439875][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   27.439879][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.439883][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   27.439885][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.048813][  T524] softirqs last disabled at (50874): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   30.048816][  T524] Preemption disabled at:
| [   30.048820][  T524] vprintk_emit (kernel/printk/printk.c:2471)
| [   30.048829][  T524] Tainted: [W]=WARN
[   30.048830][  T524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.048832][  T524] Call Trace:
[   30.048833][  T524]  <TASK>
[   30.048835][  T524]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.048841][  T524]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   30.048843][  T524]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.048848][  T524]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.048852][  T524]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   30.048857][  T524]  __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))
[   30.048859][  T524]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.048865][  T524]  ? 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)
[   30.048868][  T524]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.048872][  T524]  put_chars (drivers/char/virtio_console.c:1176)
[   30.048874][  T524]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.048880][  T524]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.048888][  T524]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.048891][  T524]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.048896][  T524]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.048900][  T524]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.048902][  T524]  ? 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))
[   30.048905][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.048908][  T524]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.048912][  T524]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.048916][  T524]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.048918][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.048924][  T524]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.048926][  T524]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.048928][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.048930][  T524]  ? 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)
[   30.048934][  T524]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.048935][  T524]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.048938][  T524]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.048941][  T524]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.048944][  T524]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   30.048949][  T524]  _printk (kernel/printk/printk.c:2504)
[   30.048953][  T524]  ? snapshot_read.cold (user.c:?)
[   30.048955][  T524]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.048958][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.048960][  T524]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.048962][  T524]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   30.048966][  T524]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   30.048969][  T524]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.048971][  T524]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   30.048974][  T524]  ? netdev_notice (net/core/dev.c:13194)
[   30.048977][  T524]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.048980][  T524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.048982][  T524]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   30.048986][  T524]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.048988][  T524]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   30.048990][  T524]  ? register_netdev (net/core/dev.c:11618)
[   30.048991][  T524]  ? 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))
[   30.048997][  T524]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   30.049000][  T524]  ? __kernel_text_address (kernel/extable.c:79)
[   30.049002][  T524]  ? write_profile (profile.c:?)
[   30.049006][  T524]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   30.049012][  T524]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.049015][  T524]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   30.049017][  T524]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   30.049019][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   30.049020][  T524]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   30.049024][  T524]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.049026][  T524]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.049028][  T524]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.049030][  T524]  ? kasan_save_stack (mm/kasan/common.c:58)
[   30.049032][  T524]  ? kasan_save_stack (mm/kasan/common.c:57)
[   30.049033][  T524]  ? kasan_save_track (mm/kasan/common.c:78)
[   30.049035][  T524]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.049037][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.049039][  T524]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   30.049042][  T524]  ? ___sys_sendmsg (net/socket.c:2758)
[   30.049052][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.049054][  T524]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.049057][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.049059][  T524]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.049060][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.049061][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.049063][  T524]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   30.049066][  T524]  ? __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)
[   30.049067][  T524]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   30.049069][  T524]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.049072][  T524]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   30.049073][  T524]  ? nla_get_range_signed (lib/nlattr.c:270)
[   30.049079][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.049081][  T524]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   30.049086][  T524]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   30.049091][  T524]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.049093][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.049098][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.049100][  T524]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.049102][  T524]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.049104][  T524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.049108][  T524]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.049110][  T524]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.049113][  T524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.049115][  T524]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.049119][  T524]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.049121][  T524]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.049125][  T524]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.049128][  T524]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.049131][  T524]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   30.049137][  T524]  ? 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))
[   30.049139][  T524]  ? 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))
[   30.049144][  T524]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.049148][  T524]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   30.049150][  T524]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.049155][  T524]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.049159][  T524]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   30.049162][  T524]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.049164][  T524]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   30.049170][  T524]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   30.049172][  T524]  ____sys_sendmsg (net/socket.c:2713)
[   30.049175][  T524]  ? copy_msghdr_from_user (net/socket.c:2650)
[   30.049177][  T524]  ? sock_write_iter (net/socket.c:1269)
[   30.049179][  T524]  ? move_addr_to_kernel (net/socket.c:258)
[   30.049186][  T524]  ___sys_sendmsg (net/socket.c:2767)
[   30.049189][  T524]  ? copy_msghdr_from_user (net/socket.c:2619)
[   30.049205][  T524]  __sys_sendmsg (net/socket.c:2799)
[   30.049208][  T524]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   30.049214][  T524]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.049217][  T524]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.049220][  T524]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   30.049223][  T524]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.049225][  T524] RIP: 0033:0x7f0a187d854e
[   30.049229][  T524] 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
[   30.049231][  T524] RSP: 002b:00007ffd51d63bb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   30.049233][  T524] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f0a187d854e
[   30.049235][  T524] RDX: 0000000000000000 RSI: 00007ffd51d63c60 RDI: 0000000000000005
[   30.049236][  T524] RBP: 00007ffd51d63bc0 R08: 0000000000000000 R09: 0000000000000000
[   30.049237][  T524] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90deaa
[   30.049237][  T524] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd51d64320
| [   35.879357][  T584] softirqs last disabled at (37380): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   35.879359][  T584] Preemption disabled at:
| [   35.879360][  T584] vprintk_emit (kernel/printk/printk.c:2471)
| [   35.879369][  T584] Tainted: [W]=WARN
[   35.879370][  T584] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.879371][  T584] Call Trace:
[   35.879373][  T584]  <TASK>
[   35.879374][  T584]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.879380][  T584]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   35.879382][  T584]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.879386][  T584]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.879391][  T584]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.879395][  T584]  __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))
[   35.879397][  T584]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.879404][  T584]  ? 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)
[   35.879406][  T584]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.879410][  T584]  put_chars (drivers/char/virtio_console.c:1176)
[   35.879413][  T584]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.879419][  T584]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.879427][  T584]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.879430][  T584]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.879435][  T584]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.879439][  T584]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.879441][  T584]  ? 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))
[   35.879444][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879447][  T584]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.879451][  T584]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.879455][  T584]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.879457][  T584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.879462][  T584]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.879465][  T584]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.879467][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879469][  T584]  ? 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)
[   35.879472][  T584]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.879474][  T584]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.879477][  T584]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.879480][  T584]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.879482][  T584]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   35.879484][  T584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.879486][  T584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.879490][  T584]  _printk (kernel/printk/printk.c:2504)
[   35.879493][  T584]  ? snapshot_read.cold (user.c:?)
[   35.879495][  T584]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.879498][  T584]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.879500][  T584]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.879503][  T584]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   35.879506][  T584]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   35.879509][  T584]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.879511][  T584]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   35.879514][  T584]  ? netdev_notice (net/core/dev.c:13194)
[   35.879517][  T584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.879520][  T584]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.879523][  T584]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   35.879526][  T584]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.879528][  T584]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   35.879531][  T584]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   35.879535][  T584]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   35.879539][  T584]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   35.879545][  T584]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.879549][  T584]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   35.879552][  T584]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   35.879553][  T584]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.879555][  T584]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.879559][  T584]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.879561][  T584]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.879563][  T584]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.879565][  T584]  ? kasan_save_stack (mm/kasan/common.c:58)
[   35.879567][  T584]  ? kasan_save_stack (mm/kasan/common.c:57)
[   35.879568][  T584]  ? kasan_save_track (mm/kasan/common.c:78)
[   35.879569][  T584]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.879571][  T584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.879573][  T584]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   35.879576][  T584]  ? ___sys_sendmsg (net/socket.c:2758)
[   35.879580][  T584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.879582][  T584]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.879585][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879586][  T584]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.879588][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879589][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879591][  T584]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   35.879593][  T584]  ? __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)
[   35.879596][  T584]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   35.879598][  T584]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.879601][  T584]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   35.879602][  T584]  ? nla_get_range_signed (lib/nlattr.c:270)
[   35.879607][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879609][  T584]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   35.879615][  T584]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   35.879620][  T584]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.879622][  T584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.879627][  T584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.879629][  T584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.879631][  T584]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.879632][  T584]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.879636][  T584]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.879638][  T584]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   35.879641][  T584]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.879643][  T584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.879647][  T584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.879649][  T584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.879653][  T584]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   35.879656][  T584]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.879659][  T584]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.879665][  T584]  ? 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))
[   35.879667][  T584]  ? 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))
[   35.879672][  T584]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.879676][  T584]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.879678][  T584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.879683][  T584]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   35.879687][  T584]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   35.879691][  T584]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.879692][  T584]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   35.879698][  T584]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   35.879700][  T584]  ____sys_sendmsg (net/socket.c:2713)
[   35.879703][  T584]  ? copy_msghdr_from_user (net/socket.c:2650)
[   35.879705][  T584]  ? sock_write_iter (net/socket.c:1269)
[   35.879707][  T584]  ? move_addr_to_kernel (net/socket.c:258)
[   35.879714][  T584]  ___sys_sendmsg (net/socket.c:2767)
[   35.879717][  T584]  ? copy_msghdr_from_user (net/socket.c:2619)
[   35.879734][  T584]  __sys_sendmsg (net/socket.c:2799)
[   35.879737][  T584]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   35.879743][  T584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.879746][  T584]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   35.879749][  T584]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   35.879752][  T584]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.879754][  T584] RIP: 0033:0x7fbd8529c54e
[   35.879758][  T584] 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
[   35.879760][  T584] RSP: 002b:00007fff16c6b310 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.879762][  T584] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fbd8529c54e
[   35.879764][  T584] RDX: 0000000000000000 RSI: 00007fff16c6b3c0 RDI: 0000000000000005
[   35.879765][  T584] RBP: 00007fff16c6b320 R08: 0000000000000000 R09: 0000000000000000
[   35.879766][  T584] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90deb0
[   35.879766][  T584] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff16c6ba80
| [   37.005073][  T631] softirqs last disabled at (29592): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   37.005076][  T631] Preemption disabled at:
| [   37.005076][  T631] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.005085][  T631] Tainted: [W]=WARN
[   37.005086][  T631] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.005087][  T631] Call Trace:
[   37.005089][  T631]  <TASK>
[   37.005090][  T631]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.005096][  T631]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.005098][  T631]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.005103][  T631]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.005107][  T631]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   37.005112][  T631]  __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))
[   37.005114][  T631]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.005120][  T631]  ? 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)
[   37.005123][  T631]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.005127][  T631]  put_chars (drivers/char/virtio_console.c:1176)
[   37.005130][  T631]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.005136][  T631]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.005143][  T631]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.005146][  T631]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.005151][  T631]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.005155][  T631]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.005156][  T631]  ? 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))
[   37.005160][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005162][  T631]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.005166][  T631]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.005171][  T631]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.005172][  T631]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.005178][  T631]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.005181][  T631]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.005182][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005184][  T631]  ? 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)
[   37.005188][  T631]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.005190][  T631]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.005192][  T631]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.005196][  T631]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.005198][  T631]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   37.005199][  T631]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.005201][  T631]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.005205][  T631]  _printk (kernel/printk/printk.c:2504)
[   37.005209][  T631]  ? snapshot_read.cold (user.c:?)
[   37.005210][  T631]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.005213][  T631]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.005216][  T631]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.005218][  T631]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   37.005222][  T631]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   37.005225][  T631]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.005227][  T631]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   37.005230][  T631]  ? netdev_notice (net/core/dev.c:13194)
[   37.005233][  T631]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.005236][  T631]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.005238][  T631]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   37.005242][  T631]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.005244][  T631]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   37.005247][  T631]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   37.005250][  T631]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   37.005255][  T631]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   37.005260][  T631]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.005264][  T631]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.005267][  T631]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.005269][  T631]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   37.005271][  T631]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   37.005274][  T631]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.005276][  T631]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.005278][  T631]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.005281][  T631]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.005283][  T631]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.005284][  T631]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.005285][  T631]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.005288][  T631]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.005289][  T631]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   37.005292][  T631]  ? ___sys_sendmsg (net/socket.c:2758)
[   37.005296][  T631]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.005298][  T631]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.005301][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005303][  T631]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.005304][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005305][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005307][  T631]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.005309][  T631]  ? __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)
[   37.005312][  T631]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.005314][  T631]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.005317][  T631]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.005319][  T631]  ? nla_get_range_signed (lib/nlattr.c:270)
[   37.005324][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005326][  T631]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.005331][  T631]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.005336][  T631]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.005338][  T631]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.005343][  T631]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.005345][  T631]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.005346][  T631]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.005348][  T631]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.005352][  T631]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.005354][  T631]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.005357][  T631]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.005359][  T631]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.005363][  T631]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.005365][  T631]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.005369][  T631]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.005372][  T631]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.005375][  T631]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.005381][  T631]  ? 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))
[   37.005383][  T631]  ? 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))
[   37.005388][  T631]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.005392][  T631]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.005394][  T631]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.005398][  T631]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.005402][  T631]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.005406][  T631]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.005408][  T631]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   37.005413][  T631]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   37.005416][  T631]  ____sys_sendmsg (net/socket.c:2713)
[   37.005418][  T631]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.005421][  T631]  ? sock_write_iter (net/socket.c:1269)
[   37.005422][  T631]  ? move_addr_to_kernel (net/socket.c:258)
[   37.005429][  T631]  ___sys_sendmsg (net/socket.c:2767)
[   37.005432][  T631]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.005448][  T631]  __sys_sendmsg (net/socket.c:2799)
[   37.005451][  T631]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.005457][  T631]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.005460][  T631]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.005463][  T631]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.005465][  T631]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.005468][  T631] RIP: 0033:0x7f2c17f6254e
[   37.005472][  T631] 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
[   37.005474][  T631] RSP: 002b:00007fff1d76a410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.005476][  T631] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f2c17f6254e
[   37.005478][  T631] RDX: 0000000000000000 RSI: 00007fff1d76a4c0 RDI: 0000000000000005
[   37.005479][  T631] RBP: 00007fff1d76a420 R08: 0000000000000000 R09: 0000000000000000
[   37.005479][  T631] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90deb1
[   37.005480][  T631] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff1d76ab80
| [   38.133457][  T678] softirqs last disabled at (34684): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   38.133460][  T678] Preemption disabled at:
| [   38.133460][  T678] vprintk_emit (kernel/printk/printk.c:2471)
| [   38.133469][  T678] Tainted: [W]=WARN
[   38.133470][  T678] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.133472][  T678] Call Trace:
[   38.133473][  T678]  <TASK>
[   38.133475][  T678]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.133481][  T678]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   38.133482][  T678]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.133487][  T678]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.133492][  T678]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   38.133496][  T678]  __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))
[   38.133498][  T678]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.133504][  T678]  ? 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)
[   38.133507][  T678]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.133511][  T678]  put_chars (drivers/char/virtio_console.c:1176)
[   38.133513][  T678]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.133519][  T678]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.133527][  T678]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.133530][  T678]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.133534][  T678]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.133538][  T678]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.133540][  T678]  ? 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))
[   38.133543][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133546][  T678]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.133550][  T678]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.133554][  T678]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.133556][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.133561][  T678]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.133564][  T678]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.133566][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133567][  T678]  ? 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)
[   38.133571][  T678]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.133573][  T678]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.133576][  T678]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.133579][  T678]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.133581][  T678]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   38.133583][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.133584][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.133588][  T678]  _printk (kernel/printk/printk.c:2504)
[   38.133591][  T678]  ? snapshot_read.cold (user.c:?)
[   38.133593][  T678]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.133596][  T678]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.133598][  T678]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.133600][  T678]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   38.133604][  T678]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   38.133607][  T678]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.133609][  T678]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   38.133612][  T678]  ? netdev_notice (net/core/dev.c:13194)
[   38.133615][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.133618][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.133620][  T678]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   38.133624][  T678]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.133626][  T678]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   38.133628][  T678]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   38.133632][  T678]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   38.133636][  T678]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   38.133642][  T678]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.133645][  T678]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.133649][  T678]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.133650][  T678]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   38.133652][  T678]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   38.133655][  T678]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.133657][  T678]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.133659][  T678]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.133661][  T678]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.133663][  T678]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.133664][  T678]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.133666][  T678]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.133668][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.133670][  T678]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   38.133673][  T678]  ? ___sys_sendmsg (net/socket.c:2758)
[   38.133676][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.133678][  T678]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.133681][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133683][  T678]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.133684][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133685][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133687][  T678]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.133689][  T678]  ? __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)
[   38.133692][  T678]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.133694][  T678]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.133697][  T678]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.133698][  T678]  ? nla_get_range_signed (lib/nlattr.c:270)
[   38.133703][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133705][  T678]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.133710][  T678]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.133715][  T678]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.133717][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.133722][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.133724][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.133726][  T678]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.133727][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.133731][  T678]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.133733][  T678]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.133736][  T678]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.133738][  T678]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.133742][  T678]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.133744][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.133747][  T678]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.133751][  T678]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.133753][  T678]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.133760][  T678]  ? 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))
[   38.133762][  T678]  ? 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))
[   38.133766][  T678]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.133770][  T678]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.133773][  T678]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.133777][  T678]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.133781][  T678]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.133784][  T678]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.133786][  T678]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   38.133791][  T678]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   38.133794][  T678]  ____sys_sendmsg (net/socket.c:2713)
[   38.133796][  T678]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.133799][  T678]  ? sock_write_iter (net/socket.c:1269)
[   38.133800][  T678]  ? move_addr_to_kernel (net/socket.c:258)
[   38.133807][  T678]  ___sys_sendmsg (net/socket.c:2767)
[   38.133810][  T678]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.133827][  T678]  __sys_sendmsg (net/socket.c:2799)
[   38.133830][  T678]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.133836][  T678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.133839][  T678]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.133842][  T678]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.133845][  T678]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.133847][  T678] RIP: 0033:0x7fc6b0d4754e
[   38.133851][  T678] 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
[   38.133853][  T678] RSP: 002b:00007ffe0be8dbb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.133856][  T678] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fc6b0d4754e
[   38.133857][  T678] RDX: 0000000000000000 RSI: 00007ffe0be8dc60 RDI: 0000000000000005
[   38.133858][  T678] RBP: 00007ffe0be8dbc0 R08: 0000000000000000 R09: 0000000000000000
[   38.133859][  T678] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90deb2
[   38.133859][  T678] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0be8e320
| [   39.246436][  T725] softirqs last disabled at (31424): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   39.246438][  T725] Preemption disabled at:
| [   39.246439][  T725] vprintk_emit (kernel/printk/printk.c:2471)
| [   39.246447][  T725] Tainted: [W]=WARN
[   39.246448][  T725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.246450][  T725] Call Trace:
[   39.246451][  T725]  <TASK>
[   39.246453][  T725]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   39.246459][  T725]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   39.246460][  T725]  __might_resched.cold (kernel/sched/core.c:9234)
[   39.246465][  T725]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   39.246469][  T725]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   39.246474][  T725]  __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))
[   39.246476][  T725]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.246482][  T725]  ? 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)
[   39.246485][  T725]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.246488][  T725]  put_chars (drivers/char/virtio_console.c:1176)
[   39.246491][  T725]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   39.246497][  T725]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   39.246504][  T725]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   39.246507][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.246512][  T725]  console_emit_next_record (kernel/printk/printk.c:3183)
[   39.246516][  T725]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   39.246518][  T725]  ? 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))
[   39.246521][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246524][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.246527][  T725]  console_flush_one_record (kernel/printk/printk.c:3268)
[   39.246532][  T725]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   39.246533][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.246539][  T725]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   39.246542][  T725]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   39.246543][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246545][  T725]  ? 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)
[   39.246549][  T725]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   39.246551][  T725]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   39.246553][  T725]  vprintk_emit (kernel/printk/printk.c:2479)
[   39.246556][  T725]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   39.246558][  T725]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   39.246560][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.246562][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.246566][  T725]  _printk (kernel/printk/printk.c:2504)
[   39.246569][  T725]  ? snapshot_read.cold (user.c:?)
[   39.246571][  T725]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.246574][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.246576][  T725]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.246579][  T725]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   39.246582][  T725]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   39.246585][  T725]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.246587][  T725]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   39.246590][  T725]  ? netdev_notice (net/core/dev.c:13194)
[   39.246593][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.246595][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.246598][  T725]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   39.246601][  T725]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.246603][  T725]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   39.246606][  T725]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   39.246610][  T725]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   39.246614][  T725]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   39.246619][  T725]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.246623][  T725]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   39.246626][  T725]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   39.246627][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   39.246629][  T725]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   39.246633][  T725]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.246635][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.246636][  T725]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.246639][  T725]  ? kasan_save_stack (mm/kasan/common.c:58)
[   39.246641][  T725]  ? kasan_save_stack (mm/kasan/common.c:57)
[   39.246642][  T725]  ? kasan_save_track (mm/kasan/common.c:78)
[   39.246643][  T725]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   39.246645][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.246647][  T725]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   39.246650][  T725]  ? ___sys_sendmsg (net/socket.c:2758)
[   39.246654][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.246656][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.246658][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246660][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.246662][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246663][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246664][  T725]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.246667][  T725]  ? __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)
[   39.246670][  T725]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.246672][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.246675][  T725]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   39.246676][  T725]  ? nla_get_range_signed (lib/nlattr.c:270)
[   39.246681][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246683][  T725]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   39.246688][  T725]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   39.246694][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.246696][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.246700][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.246702][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.246704][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.246706][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.246709][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.246711][  T725]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.246715][  T725]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.246716][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.246720][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.246722][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.246726][  T725]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.246729][  T725]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.246732][  T725]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   39.246738][  T725]  ? 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))
[   39.246740][  T725]  ? 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))
[   39.246744][  T725]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.246748][  T725]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   39.246751][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.246755][  T725]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.246759][  T725]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   39.246763][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.246764][  T725]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   39.246770][  T725]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   39.246773][  T725]  ____sys_sendmsg (net/socket.c:2713)
[   39.246775][  T725]  ? copy_msghdr_from_user (net/socket.c:2650)
[   39.246777][  T725]  ? sock_write_iter (net/socket.c:1269)
[   39.246779][  T725]  ? move_addr_to_kernel (net/socket.c:258)
[   39.246786][  T725]  ___sys_sendmsg (net/socket.c:2767)
[   39.246789][  T725]  ? copy_msghdr_from_user (net/socket.c:2619)
[   39.246804][  T725]  __sys_sendmsg (net/socket.c:2799)
[   39.246807][  T725]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   39.246813][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.246816][  T725]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.246822][  T725]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   39.246825][  T725]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.246827][  T725] RIP: 0033:0x7f8ce0ebe54e
[   39.246831][  T725] 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
[   39.246832][  T725] RSP: 002b:00007ffd0efb7260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   39.246835][  T725] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8ce0ebe54e
[   39.246836][  T725] RDX: 0000000000000000 RSI: 00007ffd0efb7310 RDI: 0000000000000005
[   39.246837][  T725] RBP: 00007ffd0efb7270 R08: 0000000000000000 R09: 0000000000000000
[   39.246838][  T725] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90deb3
[   39.246838][  T725] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd0efb79d0
| [   42.576846][  T820] softirqs last disabled at (44932): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   42.576849][  T820] Preemption disabled at:
| [   42.576850][  T820] vprintk_emit (kernel/printk/printk.c:2471)
| [   42.576858][  T820] Tainted: [W]=WARN
[   42.576859][  T820] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.576861][  T820] Call Trace:
[   42.576862][  T820]  <TASK>
[   42.576864][  T820]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.576870][  T820]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   42.576871][  T820]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.576876][  T820]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.576880][  T820]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   42.576885][  T820]  __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))
[   42.576887][  T820]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.576893][  T820]  ? 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)
[   42.576896][  T820]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.576900][  T820]  put_chars (drivers/char/virtio_console.c:1176)
[   42.576902][  T820]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.576908][  T820]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.576916][  T820]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.576919][  T820]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.576924][  T820]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.576928][  T820]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.576930][  T820]  ? 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))
[   42.576933][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.576935][  T820]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.576939][  T820]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.576943][  T820]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.576945][  T820]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.576951][  T820]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.576953][  T820]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.576955][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.576957][  T820]  ? 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)
[   42.576961][  T820]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.576962][  T820]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.576965][  T820]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.576968][  T820]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.576971][  T820]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   42.576976][  T820]  _printk (kernel/printk/printk.c:2504)
[   42.576979][  T820]  ? snapshot_read.cold (user.c:?)
[   42.576981][  T820]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.576984][  T820]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.576986][  T820]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.576988][  T820]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   42.576992][  T820]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   42.576995][  T820]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   42.576997][  T820]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   42.577000][  T820]  ? netdev_notice (net/core/dev.c:13194)
[   42.577003][  T820]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.577006][  T820]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.577008][  T820]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   42.577011][  T820]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   42.577013][  T820]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   42.577015][  T820]  ? register_netdev (net/core/dev.c:11618)
[   42.577017][  T820]  ? 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))
[   42.577022][  T820]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   42.577024][  T820]  ? __kernel_text_address (kernel/extable.c:79)
[   42.577027][  T820]  ? write_profile (profile.c:?)
[   42.577031][  T820]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   42.577036][  T820]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   42.577039][  T820]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   42.577041][  T820]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   42.577042][  T820]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   42.577044][  T820]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   42.577048][  T820]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.577050][  T820]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.577051][  T820]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.577054][  T820]  ? kasan_save_stack (mm/kasan/common.c:58)
[   42.577056][  T820]  ? kasan_save_stack (mm/kasan/common.c:57)
[   42.577057][  T820]  ? kasan_save_track (mm/kasan/common.c:78)
[   42.577058][  T820]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   42.577060][  T820]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.577062][  T820]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   42.577065][  T820]  ? ___sys_sendmsg (net/socket.c:2758)
[   42.577073][  T820]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.577075][  T820]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.577078][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.577080][  T820]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.577081][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.577082][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.577084][  T820]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   42.577086][  T820]  ? __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)
[   42.577088][  T820]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   42.577089][  T820]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.577093][  T820]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   42.577094][  T820]  ? nla_get_range_signed (lib/nlattr.c:270)
[   42.577099][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.577101][  T820]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   42.577106][  T820]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   42.577111][  T820]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.577113][  T820]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.577117][  T820]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.577119][  T820]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.577121][  T820]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.577123][  T820]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.577126][  T820]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.577128][  T820]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   42.577131][  T820]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.577133][  T820]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.577137][  T820]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.577139][  T820]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.577142][  T820]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   42.577145][  T820]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.577148][  T820]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   42.577154][  T820]  ? 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))
[   42.577156][  T820]  ? 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))
[   42.577161][  T820]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   42.577165][  T820]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.577167][  T820]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.577171][  T820]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   42.577175][  T820]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   42.577179][  T820]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.577180][  T820]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   42.577186][  T820]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   42.577188][  T820]  ____sys_sendmsg (net/socket.c:2713)
[   42.577190][  T820]  ? copy_msghdr_from_user (net/socket.c:2650)
[   42.577193][  T820]  ? sock_write_iter (net/socket.c:1269)
[   42.577194][  T820]  ? move_addr_to_kernel (net/socket.c:258)
[   42.577201][  T820]  ___sys_sendmsg (net/socket.c:2767)
[   42.577204][  T820]  ? copy_msghdr_from_user (net/socket.c:2619)
[   42.577219][  T820]  __sys_sendmsg (net/socket.c:2799)
[   42.577222][  T820]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   42.577228][  T820]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.577231][  T820]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   42.577234][  T820]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   42.577237][  T820]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   42.577239][  T820] RIP: 0033:0x7fd3f1fb154e
[   42.577243][  T820] 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
[   42.577245][  T820] RSP: 002b:00007ffd876e7690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   42.577248][  T820] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fd3f1fb154e
[   42.577249][  T820] RDX: 0000000000000000 RSI: 00007ffd876e7740 RDI: 0000000000000005
[   42.577250][  T820] RBP: 00007ffd876e76a0 R08: 0000000000000000 R09: 0000000000000000
[   42.577251][  T820] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90deb6
[   42.577252][  T820] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd876e7e00
| [   51.088576][  T922] softirqs last disabled at (45272): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   51.088578][  T922] Preemption disabled at:
| [   51.088579][  T922] vprintk_emit (kernel/printk/printk.c:2471)
| [   51.088588][  T922] Tainted: [W]=WARN
[   51.088589][  T922] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.088590][  T922] Call Trace:
[   51.088592][  T922]  <TASK>
[   51.088594][  T922]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   51.088600][  T922]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   51.088601][  T922]  __might_resched.cold (kernel/sched/core.c:9234)
[   51.088606][  T922]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   51.088611][  T922]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   51.088615][  T922]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   51.088617][  T922]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.088623][  T922]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   51.088626][  T922]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.088630][  T922]  put_chars (drivers/char/virtio_console.c:1176)
[   51.088633][  T922]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   51.088639][  T922]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   51.088647][  T922]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   51.088650][  T922]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.088655][  T922]  console_emit_next_record (kernel/printk/printk.c:3183)
[   51.088659][  T922]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   51.088661][  T922]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   51.088664][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088666][  T922]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.088670][  T922]  console_flush_one_record (kernel/printk/printk.c:3268)
[   51.088675][  T922]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   51.088677][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.088682][  T922]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   51.088685][  T922]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   51.088687][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088689][  T922]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   51.088692][  T922]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   51.088694][  T922]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   51.088697][  T922]  vprintk_emit (kernel/printk/printk.c:2479)
[   51.088700][  T922]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   51.088703][  T922]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   51.088708][  T922]  _printk (kernel/printk/printk.c:2504)
[   51.088711][  T922]  ? snapshot_read.cold (user.c:?)
[   51.088713][  T922]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.088716][  T922]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.088719][  T922]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.088721][  T922]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   51.088725][  T922]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   51.088728][  T922]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.088730][  T922]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   51.088733][  T922]  ? netdev_notice (net/core/dev.c:13194)
[   51.088736][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.088738][  T922]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.088741][  T922]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   51.088745][  T922]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.088747][  T922]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   51.088749][  T922]  ? register_netdev (net/core/dev.c:11618)
[   51.088750][  T922]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   51.088755][  T922]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   51.088758][  T922]  ? __kernel_text_address (kernel/extable.c:79)
[   51.088761][  T922]  ? write_profile (profile.c:?)
[   51.088765][  T922]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   51.088771][  T922]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   51.088774][  T922]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   51.088776][  T922]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   51.088777][  T922]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   51.088779][  T922]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.088783][  T922]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.088785][  T922]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.088787][  T922]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.088789][  T922]  ? kasan_save_stack (mm/kasan/common.c:58)
[   51.088791][  T922]  ? kasan_save_stack (mm/kasan/common.c:57)
[   51.088792][  T922]  ? kasan_save_track (mm/kasan/common.c:78)
[   51.088794][  T922]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.088796][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.088798][  T922]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   51.088801][  T922]  ? ___sys_sendmsg (net/socket.c:2758)
[   51.088805][  T922]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.088807][  T922]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.088809][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088811][  T922]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.088814][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088815][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088822][  T922]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   51.088825][  T922]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   51.088826][  T922]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   51.088828][  T922]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.088831][  T922]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   51.088833][  T922]  ? nla_get_range_signed (lib/nlattr.c:270)
[   51.088838][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088840][  T922]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   51.088845][  T922]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   51.088851][  T922]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.088852][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.088857][  T922]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.088859][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.088861][  T922]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.088863][  T922]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.088866][  T922]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.088868][  T922]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   51.088872][  T922]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.088873][  T922]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.088877][  T922]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.088879][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.088883][  T922]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   51.088886][  T922]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.088889][  T922]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   51.088895][  T922]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   51.088897][  T922]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   51.088902][  T922]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.088906][  T922]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   51.088908][  T922]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.088913][  T922]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   51.088917][  T922]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   51.088921][  T922]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.088922][  T922]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   51.088927][  T922]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   51.088930][  T922]  ____sys_sendmsg (net/socket.c:2713)
[   51.088932][  T922]  ? copy_msghdr_from_user (net/socket.c:2650)
[   51.088935][  T922]  ? sock_write_iter (net/socket.c:1269)
[   51.088936][  T922]  ? move_addr_to_kernel (net/socket.c:258)
[   51.088944][  T922]  ___sys_sendmsg (net/socket.c:2767)
[   51.088946][  T922]  ? copy_msghdr_from_user (net/socket.c:2619)
[   51.088962][  T922]  __sys_sendmsg (net/socket.c:2799)
[   51.088965][  T922]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   51.088971][  T922]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.088974][  T922]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   51.088977][  T922]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   51.088980][  T922]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.088982][  T922] RIP: 0033:0x7f6cb416454e
[   51.088986][  T922] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   51.088988][  T922] RSP: 002b:00007ffcd19d2060 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   51.088991][  T922] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f6cb416454e
[   51.088992][  T922] RDX: 0000000000000000 RSI: 00007ffcd19d2110 RDI: 0000000000000005
[   51.088993][  T922] RBP: 00007ffcd19d2070 R08: 0000000000000000 R09: 0000000000000000
[   51.088994][  T922] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90debf
[   51.088995][  T922] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcd19d27d0
| [   58.839596][ T1031] softirqs last disabled at (37322): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   58.839598][ T1031] Preemption disabled at:
| [   58.839599][ T1031] vprintk_emit (kernel/printk/printk.c:2471)
| [   58.839607][ T1031] Tainted: [W]=WARN
[   58.839608][ T1031] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   58.839610][ T1031] Call Trace:
[   58.839611][ T1031]  <TASK>
[   58.839613][ T1031]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   58.839619][ T1031]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   58.839620][ T1031]  __might_resched.cold (kernel/sched/core.c:9234)
[   58.839626][ T1031]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   58.839630][ T1031]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   58.839634][ T1031]  __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))
[   58.839636][ T1031]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   58.839642][ T1031]  ? 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)
[   58.839645][ T1031]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   58.839649][ T1031]  put_chars (drivers/char/virtio_console.c:1176)
[   58.839651][ T1031]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   58.839658][ T1031]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   58.839665][ T1031]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   58.839668][ T1031]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   58.839673][ T1031]  console_emit_next_record (kernel/printk/printk.c:3183)
[   58.839677][ T1031]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   58.839679][ T1031]  ? 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))
[   58.839682][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839684][ T1031]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   58.839688][ T1031]  console_flush_one_record (kernel/printk/printk.c:3268)
[   58.839692][ T1031]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   58.839694][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.839700][ T1031]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   58.839703][ T1031]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   58.839704][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839706][ T1031]  ? 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)
[   58.839710][ T1031]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   58.839712][ T1031]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   58.839714][ T1031]  vprintk_emit (kernel/printk/printk.c:2479)
[   58.839717][ T1031]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   58.839720][ T1031]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   58.839725][ T1031]  _printk (kernel/printk/printk.c:2504)
[   58.839729][ T1031]  ? snapshot_read.cold (user.c:?)
[   58.839731][ T1031]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   58.839734][ T1031]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   58.839736][ T1031]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   58.839738][ T1031]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   58.839742][ T1031]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   58.839745][ T1031]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   58.839747][ T1031]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   58.839750][ T1031]  ? netdev_notice (net/core/dev.c:13194)
[   58.839753][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   58.839756][ T1031]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   58.839758][ T1031]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   58.839762][ T1031]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   58.839765][ T1031]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   58.839768][ T1031]  ? register_netdev (net/core/dev.c:11618)
[   58.839770][ T1031]  ? 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))
[   58.839777][ T1031]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   58.839780][ T1031]  ? __kernel_text_address (kernel/extable.c:79)
[   58.839783][ T1031]  ? write_profile (profile.c:?)
[   58.839787][ T1031]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   58.839792][ T1031]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   58.839796][ T1031]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   58.839798][ T1031]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   58.839799][ T1031]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   58.839801][ T1031]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   58.839804][ T1031]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   58.839806][ T1031]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   58.839808][ T1031]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   58.839810][ T1031]  ? kasan_save_stack (mm/kasan/common.c:58)
[   58.839812][ T1031]  ? kasan_save_stack (mm/kasan/common.c:57)
[   58.839813][ T1031]  ? kasan_save_track (mm/kasan/common.c:78)
[   58.839815][ T1031]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   58.839817][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.839821][ T1031]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   58.839824][ T1031]  ? ___sys_sendmsg (net/socket.c:2758)
[   58.839828][ T1031]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   58.839830][ T1031]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   58.839833][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839834][ T1031]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   58.839836][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839837][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839839][ T1031]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   58.839841][ T1031]  ? __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)
[   58.839842][ T1031]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   58.839844][ T1031]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   58.839848][ T1031]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   58.839849][ T1031]  ? nla_get_range_signed (lib/nlattr.c:270)
[   58.839854][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839856][ T1031]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   58.839861][ T1031]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   58.839866][ T1031]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   58.839868][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.839873][ T1031]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   58.839875][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   58.839877][ T1031]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   58.839878][ T1031]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   58.839882][ T1031]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   58.839884][ T1031]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   58.839888][ T1031]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   58.839889][ T1031]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.839893][ T1031]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   58.839895][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   58.839899][ T1031]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   58.839902][ T1031]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   58.839905][ T1031]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   58.839911][ T1031]  ? 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))
[   58.839913][ T1031]  ? 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))
[   58.839917][ T1031]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   58.839921][ T1031]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   58.839924][ T1031]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   58.839928][ T1031]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   58.839932][ T1031]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   58.839936][ T1031]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   58.839937][ T1031]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   58.839943][ T1031]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   58.839946][ T1031]  ____sys_sendmsg (net/socket.c:2713)
[   58.839948][ T1031]  ? copy_msghdr_from_user (net/socket.c:2650)
[   58.839950][ T1031]  ? sock_write_iter (net/socket.c:1269)
[   58.839952][ T1031]  ? move_addr_to_kernel (net/socket.c:258)
[   58.839959][ T1031]  ___sys_sendmsg (net/socket.c:2767)
[   58.839961][ T1031]  ? copy_msghdr_from_user (net/socket.c:2619)
[   58.839977][ T1031]  __sys_sendmsg (net/socket.c:2799)
[   58.839980][ T1031]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   58.839986][ T1031]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.839989][ T1031]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   58.839992][ T1031]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   58.839995][ T1031]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   58.839997][ T1031] RIP: 0033:0x7fcda9d4154e
[   58.840001][ T1031] 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
[   58.840003][ T1031] RSP: 002b:00007fff35a83a40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   58.840006][ T1031] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcda9d4154e
[   58.840007][ T1031] RDX: 0000000000000000 RSI: 00007fff35a83af0 RDI: 0000000000000005
[   58.840008][ T1031] RBP: 00007fff35a83a50 R08: 0000000000000000 R09: 0000000000000000
[   58.840009][ T1031] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dec7
[   58.840010][ T1031] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff35a841b0
| [   64.856170][ T1093] softirqs last disabled at (36914): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   64.856172][ T1093] Preemption disabled at:
| [   64.856173][ T1093] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.856181][ T1093] Tainted: [W]=WARN
[   64.856182][ T1093] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.856184][ T1093] Call Trace:
[   64.856185][ T1093]  <TASK>
[   64.856187][ T1093]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.856193][ T1093]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.856194][ T1093]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.856199][ T1093]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.856203][ T1093]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.856208][ T1093]  __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))
[   64.856210][ T1093]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.856216][ T1093]  ? 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)
[   64.856219][ T1093]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.856223][ T1093]  put_chars (drivers/char/virtio_console.c:1176)
[   64.856225][ T1093]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.856232][ T1093]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.856239][ T1093]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.856242][ T1093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.856247][ T1093]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.856251][ T1093]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.856253][ T1093]  ? 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))
[   64.856256][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856258][ T1093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.856263][ T1093]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.856267][ T1093]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.856269][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.856274][ T1093]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.856277][ T1093]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.856279][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856281][ T1093]  ? 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)
[   64.856285][ T1093]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.856287][ T1093]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.856289][ T1093]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.856293][ T1093]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.856294][ T1093]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   64.856296][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.856298][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.856302][ T1093]  _printk (kernel/printk/printk.c:2504)
[   64.856305][ T1093]  ? snapshot_read.cold (user.c:?)
[   64.856307][ T1093]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.856310][ T1093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.856312][ T1093]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.856315][ T1093]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.856318][ T1093]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.856321][ T1093]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.856324][ T1093]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.856326][ T1093]  ? netdev_notice (net/core/dev.c:13194)
[   64.856329][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.856332][ T1093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.856335][ T1093]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.856338][ T1093]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.856340][ T1093]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   64.856343][ T1093]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   64.856347][ T1093]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   64.856351][ T1093]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   64.856357][ T1093]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.856360][ T1093]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.856364][ T1093]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.856365][ T1093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.856367][ T1093]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.856370][ T1093]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.856372][ T1093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.856374][ T1093]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.856377][ T1093]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.856378][ T1093]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.856380][ T1093]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.856381][ T1093]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.856383][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.856385][ T1093]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.856388][ T1093]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.856392][ T1093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.856394][ T1093]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.856396][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856398][ T1093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.856400][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856401][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856403][ T1093]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.856405][ T1093]  ? __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)
[   64.856408][ T1093]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.856410][ T1093]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.856413][ T1093]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.856414][ T1093]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.856419][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856421][ T1093]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.856427][ T1093]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.856432][ T1093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.856434][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.856439][ T1093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.856441][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.856443][ T1093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.856444][ T1093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.856448][ T1093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.856450][ T1093]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.856454][ T1093]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.856455][ T1093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.856459][ T1093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.856462][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.856465][ T1093]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.856468][ T1093]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.856471][ T1093]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.856478][ T1093]  ? 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))
[   64.856480][ T1093]  ? 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))
[   64.856485][ T1093]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.856489][ T1093]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.856491][ T1093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.856496][ T1093]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.856500][ T1093]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.856503][ T1093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.856505][ T1093]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.856510][ T1093]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.856513][ T1093]  ____sys_sendmsg (net/socket.c:2713)
[   64.856515][ T1093]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.856518][ T1093]  ? sock_write_iter (net/socket.c:1269)
[   64.856519][ T1093]  ? move_addr_to_kernel (net/socket.c:258)
[   64.856527][ T1093]  ___sys_sendmsg (net/socket.c:2767)
[   64.856530][ T1093]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.856546][ T1093]  __sys_sendmsg (net/socket.c:2799)
[   64.856549][ T1093]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.856555][ T1093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.856558][ T1093]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.856561][ T1093]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.856564][ T1093]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.856566][ T1093] RIP: 0033:0x7efd9e8f354e
[   64.856570][ T1093] 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
[   64.856571][ T1093] RSP: 002b:00007ffefeb9bf10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.856574][ T1093] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007efd9e8f354e
[   64.856575][ T1093] RDX: 0000000000000000 RSI: 00007ffefeb9bfc0 RDI: 0000000000000005
[   64.856576][ T1093] RBP: 00007ffefeb9bf20 R08: 0000000000000000 R09: 0000000000000000
[   64.856577][ T1093] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90decd
[   64.856578][ T1093] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffefeb9c680
| [   66.231654][ T1142] softirqs last disabled at (50132): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   66.231657][ T1142] Preemption disabled at:
| [   66.231657][ T1142] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.231666][ T1142] Tainted: [W]=WARN
[   66.231667][ T1142] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.231668][ T1142] Call Trace:
[   66.231670][ T1142]  <TASK>
[   66.231671][ T1142]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.231677][ T1142]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.231679][ T1142]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.231684][ T1142]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.231688][ T1142]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.231693][ T1142]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.231695][ T1142]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.231701][ T1142]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.231704][ T1142]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.231707][ T1142]  put_chars (drivers/char/virtio_console.c:1176)
[   66.231710][ T1142]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.231716][ T1142]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.231724][ T1142]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.231727][ T1142]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.231732][ T1142]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.231735][ T1142]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.231737][ T1142]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   66.231741][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.231743][ T1142]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.231747][ T1142]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.231752][ T1142]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.231754][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.231759][ T1142]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.231762][ T1142]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.231764][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.231765][ T1142]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   66.231769][ T1142]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.231771][ T1142]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.231774][ T1142]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.231777][ T1142]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.231779][ T1142]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   66.231781][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.231782][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.231786][ T1142]  _printk (kernel/printk/printk.c:2504)
[   66.231790][ T1142]  ? snapshot_read.cold (user.c:?)
[   66.231792][ T1142]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.231794][ T1142]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.231797][ T1142]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.231799][ T1142]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.231803][ T1142]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.231806][ T1142]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.231808][ T1142]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.231812][ T1142]  ? netdev_notice (net/core/dev.c:13194)
[   66.231816][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.231822][ T1142]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.231826][ T1142]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.231831][ T1142]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.231833][ T1142]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   66.231836][ T1142]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   66.231839][ T1142]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   66.231844][ T1142]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   66.231849][ T1142]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.231853][ T1142]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.231856][ T1142]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.231857][ T1142]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.231859][ T1142]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.231863][ T1142]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.231865][ T1142]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.231866][ T1142]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.231869][ T1142]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.231870][ T1142]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.231872][ T1142]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.231873][ T1142]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.231875][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.231877][ T1142]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.231880][ T1142]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.231884][ T1142]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.231886][ T1142]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.231889][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.231890][ T1142]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.231892][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.231893][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.231895][ T1142]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.231897][ T1142]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   66.231900][ T1142]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.231902][ T1142]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.231905][ T1142]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.231906][ T1142]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.231911][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.231913][ T1142]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.231918][ T1142]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.231923][ T1142]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.231925][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.231930][ T1142]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.231932][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.231933][ T1142]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.231935][ T1142]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.231939][ T1142]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.231941][ T1142]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.231944][ T1142]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.231945][ T1142]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.231950][ T1142]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.231952][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.231955][ T1142]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.231958][ T1142]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.231961][ T1142]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.231967][ T1142]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   66.231969][ T1142]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   66.231974][ T1142]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.231977][ T1142]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.231980][ T1142]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.231984][ T1142]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.231988][ T1142]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.231992][ T1142]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.231993][ T1142]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.231999][ T1142]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.232002][ T1142]  ____sys_sendmsg (net/socket.c:2713)
[   66.232004][ T1142]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.232006][ T1142]  ? sock_write_iter (net/socket.c:1269)
[   66.232008][ T1142]  ? move_addr_to_kernel (net/socket.c:258)
[   66.232015][ T1142]  ___sys_sendmsg (net/socket.c:2767)
[   66.232018][ T1142]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.232033][ T1142]  __sys_sendmsg (net/socket.c:2799)
[   66.232036][ T1142]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.232042][ T1142]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.232045][ T1142]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.232048][ T1142]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.232051][ T1142]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.232053][ T1142] RIP: 0033:0x7f3e9888c54e
[   66.232057][ T1142] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   66.232059][ T1142] RSP: 002b:00007ffe79fd3330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.232062][ T1142] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f3e9888c54e
[   66.232063][ T1142] RDX: 0000000000000000 RSI: 00007ffe79fd33e0 RDI: 0000000000000005
[   66.232064][ T1142] RBP: 00007ffe79fd3340 R08: 0000000000000000 R09: 0000000000000000
[   66.232065][ T1142] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dece
[   66.232065][ T1142] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe79fd3aa0
| [   67.555393][ T1191] softirqs last disabled at (29626): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   67.555395][ T1191] Preemption disabled at:
| [   67.555396][ T1191] vprintk_emit (kernel/printk/printk.c:2471)
| [   67.555404][ T1191] Tainted: [W]=WARN
[   67.555405][ T1191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.555407][ T1191] Call Trace:
[   67.555409][ T1191]  <TASK>
[   67.555410][ T1191]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.555416][ T1191]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   67.555418][ T1191]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.555423][ T1191]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.555427][ T1191]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   67.555432][ T1191]  __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))
[   67.555434][ T1191]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.555440][ T1191]  ? 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)
[   67.555443][ T1191]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.555446][ T1191]  put_chars (drivers/char/virtio_console.c:1176)
[   67.555449][ T1191]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.555455][ T1191]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.555462][ T1191]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.555466][ T1191]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.555470][ T1191]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.555474][ T1191]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.555476][ T1191]  ? 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))
[   67.555479][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555482][ T1191]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.555486][ T1191]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.555490][ T1191]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.555492][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.555497][ T1191]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.555500][ T1191]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.555502][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555504][ T1191]  ? 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)
[   67.555507][ T1191]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.555509][ T1191]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.555512][ T1191]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.555515][ T1191]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.555517][ T1191]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   67.555519][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.555520][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.555524][ T1191]  _printk (kernel/printk/printk.c:2504)
[   67.555528][ T1191]  ? snapshot_read.cold (user.c:?)
[   67.555529][ T1191]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.555532][ T1191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.555535][ T1191]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.555537][ T1191]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   67.555541][ T1191]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   67.555544][ T1191]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.555546][ T1191]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   67.555549][ T1191]  ? netdev_notice (net/core/dev.c:13194)
[   67.555551][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.555554][ T1191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.555557][ T1191]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   67.555560][ T1191]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.555562][ T1191]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   67.555565][ T1191]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   67.555569][ T1191]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   67.555573][ T1191]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   67.555578][ T1191]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.555582][ T1191]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   67.555585][ T1191]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   67.555587][ T1191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   67.555588][ T1191]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.555592][ T1191]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.555594][ T1191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.555596][ T1191]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.555598][ T1191]  ? kasan_save_stack (mm/kasan/common.c:58)
[   67.555600][ T1191]  ? kasan_save_stack (mm/kasan/common.c:57)
[   67.555601][ T1191]  ? kasan_save_track (mm/kasan/common.c:78)
[   67.555602][ T1191]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   67.555605][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.555607][ T1191]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   67.555609][ T1191]  ? ___sys_sendmsg (net/socket.c:2758)
[   67.555613][ T1191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.555615][ T1191]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.555618][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555619][ T1191]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.555621][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555622][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555624][ T1191]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   67.555626][ T1191]  ? __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)
[   67.555629][ T1191]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   67.555631][ T1191]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.555634][ T1191]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   67.555635][ T1191]  ? nla_get_range_signed (lib/nlattr.c:270)
[   67.555640][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555642][ T1191]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   67.555647][ T1191]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.555653][ T1191]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.555655][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.555659][ T1191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.555661][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.555663][ T1191]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.555665][ T1191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.555668][ T1191]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.555670][ T1191]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.555673][ T1191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.555675][ T1191]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.555679][ T1191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.555681][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.555684][ T1191]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   67.555687][ T1191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.555690][ T1191]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.555697][ T1191]  ? 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))
[   67.555699][ T1191]  ? 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))
[   67.555703][ T1191]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.555707][ T1191]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.555709][ T1191]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.555714][ T1191]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   67.555717][ T1191]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   67.555721][ T1191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.555723][ T1191]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   67.555728][ T1191]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   67.555731][ T1191]  ____sys_sendmsg (net/socket.c:2713)
[   67.555733][ T1191]  ? copy_msghdr_from_user (net/socket.c:2650)
[   67.555735][ T1191]  ? sock_write_iter (net/socket.c:1269)
[   67.555737][ T1191]  ? move_addr_to_kernel (net/socket.c:258)
[   67.555744][ T1191]  ___sys_sendmsg (net/socket.c:2767)
[   67.555747][ T1191]  ? copy_msghdr_from_user (net/socket.c:2619)
[   67.555763][ T1191]  __sys_sendmsg (net/socket.c:2799)
[   67.555767][ T1191]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   67.555777][ T1191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.555781][ T1191]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   67.555784][ T1191]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   67.555786][ T1191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.555789][ T1191] RIP: 0033:0x7fb36413d54e
[   67.555793][ T1191] 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
[   67.555794][ T1191] RSP: 002b:00007ffedb83c6d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.555797][ T1191] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb36413d54e
[   67.555798][ T1191] RDX: 0000000000000000 RSI: 00007ffedb83c780 RDI: 0000000000000005
[   67.555799][ T1191] RBP: 00007ffedb83c6e0 R08: 0000000000000000 R09: 0000000000000000
[   67.555800][ T1191] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90decf
[   67.555801][ T1191] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffedb83ce40
| [   68.744287][ T1240] softirqs last disabled at (32106): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   68.744289][ T1240] Preemption disabled at:
| [   68.744290][ T1240] vprintk_emit (kernel/printk/printk.c:2471)
| [   68.744298][ T1240] Tainted: [W]=WARN
[   68.744299][ T1240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   68.744301][ T1240] Call Trace:
[   68.744302][ T1240]  <TASK>
[   68.744304][ T1240]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   68.744310][ T1240]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   68.744311][ T1240]  __might_resched.cold (kernel/sched/core.c:9234)
[   68.744316][ T1240]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   68.744320][ T1240]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   68.744325][ T1240]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   68.744327][ T1240]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.744334][ T1240]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   68.744337][ T1240]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.744340][ T1240]  put_chars (drivers/char/virtio_console.c:1176)
[   68.744343][ T1240]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   68.744349][ T1240]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   68.744357][ T1240]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   68.744360][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.744364][ T1240]  console_emit_next_record (kernel/printk/printk.c:3183)
[   68.744368][ T1240]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   68.744370][ T1240]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   68.744374][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744376][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.744380][ T1240]  console_flush_one_record (kernel/printk/printk.c:3268)
[   68.744384][ T1240]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   68.744386][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.744392][ T1240]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   68.744395][ T1240]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   68.744397][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744398][ T1240]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   68.744402][ T1240]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   68.744404][ T1240]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   68.744407][ T1240]  vprintk_emit (kernel/printk/printk.c:2479)
[   68.744410][ T1240]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   68.744412][ T1240]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   68.744414][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.744416][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.744420][ T1240]  _printk (kernel/printk/printk.c:2504)
[   68.744423][ T1240]  ? snapshot_read.cold (user.c:?)
[   68.744425][ T1240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.744427][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.744430][ T1240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.744432][ T1240]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   68.744436][ T1240]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   68.744439][ T1240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   68.744441][ T1240]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   68.744444][ T1240]  ? netdev_notice (net/core/dev.c:13194)
[   68.744447][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.744450][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.744452][ T1240]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   68.744456][ T1240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   68.744458][ T1240]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   68.744461][ T1240]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   68.744465][ T1240]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   68.744469][ T1240]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   68.744475][ T1240]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   68.744478][ T1240]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   68.744482][ T1240]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   68.744483][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   68.744485][ T1240]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   68.744488][ T1240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.744490][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.744492][ T1240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.744494][ T1240]  ? kasan_save_stack (mm/kasan/common.c:58)
[   68.744496][ T1240]  ? kasan_save_stack (mm/kasan/common.c:57)
[   68.744497][ T1240]  ? kasan_save_track (mm/kasan/common.c:78)
[   68.744498][ T1240]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   68.744501][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.744503][ T1240]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   68.744506][ T1240]  ? ___sys_sendmsg (net/socket.c:2758)
[   68.744510][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.744512][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.744514][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744516][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.744517][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744519][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744520][ T1240]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   68.744523][ T1240]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   68.744525][ T1240]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   68.744527][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.744531][ T1240]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   68.744532][ T1240]  ? nla_get_range_signed (lib/nlattr.c:270)
[   68.744537][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744539][ T1240]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   68.744544][ T1240]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   68.744550][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.744551][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.744556][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.744558][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.744560][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.744561][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.744565][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.744567][ T1240]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   68.744570][ T1240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.744572][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.744576][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.744578][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.744582][ T1240]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   68.744585][ T1240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.744588][ T1240]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   68.744594][ T1240]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   68.744596][ T1240]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   68.744601][ T1240]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   68.744605][ T1240]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   68.744607][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.744611][ T1240]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   68.744615][ T1240]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   68.744619][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.744621][ T1240]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   68.744626][ T1240]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   68.744629][ T1240]  ____sys_sendmsg (net/socket.c:2713)
[   68.744631][ T1240]  ? copy_msghdr_from_user (net/socket.c:2650)
[   68.744633][ T1240]  ? sock_write_iter (net/socket.c:1269)
[   68.744635][ T1240]  ? move_addr_to_kernel (net/socket.c:258)
[   68.744642][ T1240]  ___sys_sendmsg (net/socket.c:2767)
[   68.744645][ T1240]  ? copy_msghdr_from_user (net/socket.c:2619)
[   68.744661][ T1240]  __sys_sendmsg (net/socket.c:2799)
[   68.744664][ T1240]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   68.744670][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.744673][ T1240]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   68.744677][ T1240]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   68.744679][ T1240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   68.744682][ T1240] RIP: 0033:0x7fdca4c1354e
[   68.744686][ T1240] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   68.744687][ T1240] RSP: 002b:00007ffe62954340 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   68.744690][ T1240] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fdca4c1354e
[   68.744691][ T1240] RDX: 0000000000000000 RSI: 00007ffe629543f0 RDI: 0000000000000005
[   68.744692][ T1240] RBP: 00007ffe62954350 R08: 0000000000000000 R09: 0000000000000000
[   68.744693][ T1240] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ded1


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