======================================
| [   11.824586][  T276] softirqs last disabled at (15742): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   11.824589][  T276] Preemption disabled at:
| [   11.824589][  T276] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.824597][  T276] Tainted: [W]=WARN
[   11.824598][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.824600][  T276] Call Trace:
[   11.824601][  T276]  <TASK>
[   11.824603][  T276]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.824609][  T276]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.824611][  T276]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.824615][  T276]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.824619][  T276]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.824624][  T276]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.824625][  T276]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.824632][  T276]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.824635][  T276]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.824638][  T276]  put_chars (drivers/char/virtio_console.c:1176)
[   11.824641][  T276]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.824648][  T276]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.824656][  T276]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.824681][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.824687][  T276]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.824691][  T276]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.824693][  T276]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.824696][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824698][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.824702][  T276]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.824706][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.824708][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.824713][  T276]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.824716][  T276]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.824718][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824720][  T276]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.824723][  T276]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.824725][  T276]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.824728][  T276]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.824731][  T276]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.824733][  T276]  ? save_trace (kernel/locking/lockdep.c:589)
[   11.824737][  T276]  _printk (kernel/printk/printk.c:2504)
[   11.824743][  T276]  ? snapshot_read.cold (user.c:?)
[   11.824747][  T276]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.824749][  T276]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   11.824753][  T276]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   11.824756][  T276]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.824758][  T276]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   11.824760][  T276]  ? netdev_notice (net/core/dev.c:13194)
[   11.824763][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.824766][  T276]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.824769][  T276]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.824772][  T276]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.824774][  T276]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   11.824776][  T276]  ? 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))
[   11.824781][  T276]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   11.824784][  T276]  ? __kernel_text_address (kernel/extable.c:79)
[   11.824786][  T276]  ? write_profile (profile.c:?)
[   11.824790][  T276]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   11.824796][  T276]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.824799][  T276]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.824802][  T276]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.824803][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.824805][  T276]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.824809][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.824811][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.824813][  T276]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.824815][  T276]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.824817][  T276]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.824818][  T276]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.824820][  T276]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.824822][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.824824][  T276]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.824827][  T276]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.824830][  T276]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.824832][  T276]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.824835][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824837][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.824838][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824839][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824841][  T276]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.824843][  T276]  ? __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)
[   11.824846][  T276]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.824847][  T276]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.824851][  T276]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.824852][  T276]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.824857][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824859][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.824864][  T276]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.824869][  T276]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.824871][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.824876][  T276]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.824877][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.824879][  T276]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.824881][  T276]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.824885][  T276]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.824887][  T276]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.824890][  T276]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.824891][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.824896][  T276]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.824897][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.824901][  T276]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.824904][  T276]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.824907][  T276]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.824913][  T276]  ? 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))
[   11.824915][  T276]  ? 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))
[   11.824920][  T276]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.824923][  T276]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.824926][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.824930][  T276]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.824934][  T276]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.824937][  T276]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.824939][  T276]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.824944][  T276]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.824947][  T276]  ____sys_sendmsg (net/socket.c:2713)
[   11.824949][  T276]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.824952][  T276]  ? sock_write_iter (net/socket.c:1269)
[   11.824953][  T276]  ? move_addr_to_kernel (net/socket.c:258)
[   11.824960][  T276]  ___sys_sendmsg (net/socket.c:2767)
[   11.824963][  T276]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.824978][  T276]  __sys_sendmsg (net/socket.c:2799)
[   11.824982][  T276]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.824988][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.824991][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.824994][  T276]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.824997][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.824999][  T276] RIP: 0033:0x7f809bed054e
[   11.825002][  T276] 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
[   11.825004][  T276] RSP: 002b:00007ffc2c3e1110 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.825006][  T276] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f809bed054e
[   11.825008][  T276] RDX: 0000000000000000 RSI: 00007ffc2c3e11c0 RDI: 0000000000000005
[   11.825009][  T276] RBP: 00007ffc2c3e1120 R08: 0000000000000000 R09: 0000000000000000
[   11.825009][  T276] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91957c
[   11.825010][  T276] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2c3e1890
| [   23.409361][  T568] softirqs last disabled at (16750): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   23.409363][  T568] Preemption disabled at:
| [   23.409364][  T568] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.409372][  T568] Tainted: [W]=WARN
[   23.409373][  T568] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.409375][  T568] Call Trace:
[   23.409376][  T568]  <TASK>
[   23.409378][  T568]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.409384][  T568]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.409385][  T568]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.409390][  T568]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.409394][  T568]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.409398][  T568]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   23.409400][  T568]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.409406][  T568]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.409409][  T568]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.409413][  T568]  put_chars (drivers/char/virtio_console.c:1176)
[   23.409416][  T568]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.409417][  T568]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.409420][  T568]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.409426][  T568]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.409434][  T568]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.409436][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409438][  T568]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.409442][  T568]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.409446][  T568]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.409448][  T568]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   23.409451][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409453][  T568]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.409457][  T568]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.409461][  T568]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.409463][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.409468][  T568]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.409471][  T568]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.409473][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409474][  T568]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   23.409478][  T568]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.409480][  T568]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.409482][  T568]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.409486][  T568]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.409487][  T568]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.409489][  T568]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   23.409493][  T568]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.409497][  T568]  _printk (kernel/printk/printk.c:2504)
[   23.409500][  T568]  ? snapshot_read.cold (user.c:?)
[   23.409504][  T568]  ? br_multicast_flood (??:?)
[   23.409507][  T568]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.409509][  T568]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.409510][  T568]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.409514][  T568]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   23.409518][  T568]  br_init_port (net/bridge/br_stp_if.c:39)
[   23.409521][  T568]  new_nbp (net/bridge/br_if.c:449)
[   23.409525][  T568]  br_add_if (net/bridge/br_if.c:592)
[   23.409527][  T568]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   23.409531][  T568]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   23.409536][  T568]  do_set_master (net/core/rtnetlink.c:3071)
[   23.409539][  T568]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.409543][  T568]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.409546][  T568]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.409547][  T568]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.409550][  T568]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.409553][  T568]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.409555][  T568]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.409557][  T568]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.409560][  T568]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.409562][  T568]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.409563][  T568]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.409565][  T568]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.409567][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.409569][  T568]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.409571][  T568]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.409575][  T568]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.409577][  T568]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.409580][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409581][  T568]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.409583][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409584][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409586][  T568]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.409588][  T568]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   23.409589][  T568]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.409591][  T568]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.409595][  T568]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.409596][  T568]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.409600][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409603][  T568]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.409608][  T568]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.409613][  T568]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.409615][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.409619][  T568]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.409621][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.409623][  T568]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.409625][  T568]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.409629][  T568]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.409631][  T568]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.409634][  T568]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.409635][  T568]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.409639][  T568]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.409641][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.409645][  T568]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.409649][  T568]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.409652][  T568]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.409658][  T568]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.409660][  T568]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.409665][  T568]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.409669][  T568]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.409671][  T568]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.409675][  T568]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.409679][  T568]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.409683][  T568]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.409685][  T568]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.409690][  T568]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.409693][  T568]  ____sys_sendmsg (net/socket.c:2713)
[   23.409695][  T568]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.409697][  T568]  ? sock_write_iter (net/socket.c:1269)
[   23.409699][  T568]  ? move_addr_to_kernel (net/socket.c:258)
[   23.409711][  T568]  ___sys_sendmsg (net/socket.c:2767)
[   23.409714][  T568]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.409729][  T568]  __sys_sendmsg (net/socket.c:2799)
[   23.409732][  T568]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.409738][  T568]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.409744][  T568]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.409747][  T568]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.409749][  T568]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.409751][  T568] RIP: 0033:0x7febba3ca54e
[   23.409755][  T568] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.409757][  T568] RSP: 002b:00007ffea30cf780 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.409759][  T568] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007febba3ca54e
[   23.409761][  T568] RDX: 0000000000000000 RSI: 00007ffea30cf830 RDI: 0000000000000005
[   23.409761][  T568] RBP: 00007ffea30cf790 R08: 0000000000000000 R09: 0000000000000000
[   23.409762][  T568] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919588
[   23.409763][  T568] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea30cff00
| [   24.740998][  T655] softirqs last disabled at (17540): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.741000][  T655] Preemption disabled at:
| [   24.741001][  T655] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.741010][  T655] Tainted: [W]=WARN
[   24.741010][  T655] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.741012][  T655] Call Trace:
[   24.741013][  T655]  <TASK>
[   24.741015][  T655]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.741021][  T655]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.741022][  T655]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.741027][  T655]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.741031][  T655]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.741036][  T655]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.741038][  T655]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.741044][  T655]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.741047][  T655]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.741051][  T655]  put_chars (drivers/char/virtio_console.c:1176)
[   24.741053][  T655]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.741054][  T655]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.741058][  T655]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.741064][  T655]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.741071][  T655]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.741074][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741076][  T655]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.741080][  T655]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.741085][  T655]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.741087][  T655]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.741090][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741092][  T655]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.741096][  T655]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.741100][  T655]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.741102][  T655]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.741108][  T655]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.741110][  T655]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.741112][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741114][  T655]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   24.741118][  T655]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.741120][  T655]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.741123][  T655]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.741126][  T655]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.741128][  T655]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.741131][  T655]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.741134][  T655]  _printk (kernel/printk/printk.c:2504)
[   24.741138][  T655]  ? snapshot_read.cold (user.c:?)
[   24.741142][  T655]  ? br_multicast_flood (??:?)
[   24.741145][  T655]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.741147][  T655]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.741148][  T655]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.741152][  T655]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   24.741157][  T655]  br_init_port (net/bridge/br_stp_if.c:39)
[   24.741159][  T655]  new_nbp (net/bridge/br_if.c:449)
[   24.741163][  T655]  br_add_if (net/bridge/br_if.c:592)
[   24.741166][  T655]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.741169][  T655]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.741175][  T655]  do_set_master (net/core/rtnetlink.c:3071)
[   24.741179][  T655]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.741182][  T655]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.741186][  T655]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.741187][  T655]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.741190][  T655]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.741193][  T655]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.741195][  T655]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.741197][  T655]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.741200][  T655]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.741202][  T655]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.741203][  T655]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.741204][  T655]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.741207][  T655]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.741209][  T655]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   24.741211][  T655]  ? ___sys_sendmsg (net/socket.c:2758)
[   24.741215][  T655]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.741217][  T655]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.741220][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741222][  T655]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.741223][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741225][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741226][  T655]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.741229][  T655]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   24.741231][  T655]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.741233][  T655]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.741237][  T655]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.741238][  T655]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.741243][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741246][  T655]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.741251][  T655]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.741256][  T655]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.741258][  T655]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.741263][  T655]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.741265][  T655]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.741267][  T655]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.741269][  T655]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.741273][  T655]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.741275][  T655]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.741278][  T655]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.741280][  T655]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.741284][  T655]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.741286][  T655]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.741290][  T655]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.741293][  T655]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.741296][  T655]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.741303][  T655]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.741305][  T655]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.741309][  T655]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.741313][  T655]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.741316][  T655]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.741320][  T655]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.741325][  T655]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.741328][  T655]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.741330][  T655]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.741336][  T655]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.741339][  T655]  ____sys_sendmsg (net/socket.c:2713)
[   24.741341][  T655]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.741344][  T655]  ? sock_write_iter (net/socket.c:1269)
[   24.741345][  T655]  ? move_addr_to_kernel (net/socket.c:258)
[   24.741353][  T655]  ___sys_sendmsg (net/socket.c:2767)
[   24.741356][  T655]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.741373][  T655]  __sys_sendmsg (net/socket.c:2799)
[   24.741376][  T655]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.741382][  T655]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.741385][  T655]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.741388][  T655]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.741391][  T655]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.741393][  T655] RIP: 0033:0x7fc1e73e454e
[   24.741397][  T655] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.741399][  T655] RSP: 002b:00007fff33f51160 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.741401][  T655] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc1e73e454e
[   24.741403][  T655] RDX: 0000000000000000 RSI: 00007fff33f51210 RDI: 0000000000000005
[   24.741404][  T655] RBP: 00007fff33f51170 R08: 0000000000000000 R09: 0000000000000000
[   24.741404][  T655] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919589
[   24.741405][  T655] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff33f518e0
| [   26.096467][  T725] softirqs last disabled at (15143): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.096469][  T725] Preemption disabled at:
| [   26.096470][  T725] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.096479][  T725] Tainted: [W]=WARN
[   26.096479][  T725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.096481][  T725] Call Trace:
[   26.096482][  T725]  <TASK>
[   26.096484][  T725]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.096490][  T725]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.096491][  T725]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.096496][  T725]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.096500][  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)
[   26.096505][  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))
[   26.096506][  T725]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.096513][  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)
[   26.096516][  T725]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.096519][  T725]  put_chars (drivers/char/virtio_console.c:1176)
[   26.096522][  T725]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.096523][  T725]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.096526][  T725]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.096532][  T725]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.096540][  T725]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.096542][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.096544][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.096548][  T725]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.096552][  T725]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.096554][  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))
[   26.096557][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.096559][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.096563][  T725]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.096567][  T725]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.096569][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.096574][  T725]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.096577][  T725]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.096579][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.096581][  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)
[   26.096584][  T725]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.096586][  T725]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.096589][  T725]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.096592][  T725]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.096594][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.096596][  T725]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.096600][  T725]  _printk (kernel/printk/printk.c:2504)
[   26.096604][  T725]  ? snapshot_read.cold (user.c:?)
[   26.096607][  T725]  ? br_multicast_flood (??:?)
[   26.096610][  T725]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.096612][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.096613][  T725]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.096617][  T725]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.096621][  T725]  br_init_port (net/bridge/br_stp_if.c:39)
[   26.096624][  T725]  new_nbp (net/bridge/br_if.c:449)
[   26.096628][  T725]  br_add_if (net/bridge/br_if.c:592)
[   26.096630][  T725]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   26.096634][  T725]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   26.096639][  T725]  do_set_master (net/core/rtnetlink.c:3071)
[   26.096643][  T725]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.096647][  T725]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.096650][  T725]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.096651][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.096654][  T725]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.096657][  T725]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.096659][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.096661][  T725]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.096664][  T725]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.096666][  T725]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.096667][  T725]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.096668][  T725]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.096671][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.096672][  T725]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   26.096676][  T725]  ? ___sys_sendmsg (net/socket.c:2758)
[   26.096679][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.096681][  T725]  ? osq_unlock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1324 kernel/locking/osq_lock.c:218)
[   26.096683][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.096685][  T725]  ? osq_lock (kernel/locking/osq_lock.c:204 (discriminator 2))
[   26.096688][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.096690][  T725]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.096693][  T725]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.096696][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.096700][  T725]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.096701][  T725]  ? nla_get_range_signed (lib/nlattr.c:270)
[   26.096706][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.096708][  T725]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.096717][  T725]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.096723][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.096725][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.096729][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.096731][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.096733][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.096735][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.096739][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.096743][  T725]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.096746][  T725]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.096747][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.096752][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.096753][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.096757][  T725]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.096760][  T725]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.096762][  T725]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.096769][  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))
[   26.096771][  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))
[   26.096775][  T725]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.096779][  T725]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.096782][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.096786][  T725]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.096790][  T725]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.096793][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.096795][  T725]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   26.096800][  T725]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   26.096803][  T725]  ____sys_sendmsg (net/socket.c:2713)
[   26.096805][  T725]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.096808][  T725]  ? sock_write_iter (net/socket.c:1269)
[   26.096809][  T725]  ? move_addr_to_kernel (net/socket.c:258)
[   26.096817][  T725]  ___sys_sendmsg (net/socket.c:2767)
[   26.096819][  T725]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.096835][  T725]  __sys_sendmsg (net/socket.c:2799)
[   26.096838][  T725]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.096844][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.096847][  T725]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.096850][  T725]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.096853][  T725]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.096855][  T725] RIP: 0033:0x7f0c0fbe654e
[   26.096858][  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
[   26.096860][  T725] RSP: 002b:00007ffc7f5ab510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.096863][  T725] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0c0fbe654e
[   26.096864][  T725] RDX: 0000000000000000 RSI: 00007ffc7f5ab5c0 RDI: 0000000000000005
[   26.096865][  T725] RBP: 00007ffc7f5ab520 R08: 0000000000000000 R09: 0000000000000000
[   26.096866][  T725] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91958b
[   26.096866][  T725] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc7f5abc90
| [   27.398992][  T794] softirqs last disabled at (18190): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   27.398995][  T794] Preemption disabled at:
| [   27.398995][  T794] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.399004][  T794] Tainted: [W]=WARN
[   27.399004][  T794] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.399006][  T794] Call Trace:
[   27.399007][  T794]  <TASK>
[   27.399009][  T794]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.399015][  T794]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.399016][  T794]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.399021][  T794]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.399025][  T794]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.399029][  T794]  __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))
[   27.399031][  T794]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.399038][  T794]  ? 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)
[   27.399040][  T794]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.399044][  T794]  put_chars (drivers/char/virtio_console.c:1176)
[   27.399046][  T794]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.399048][  T794]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.399051][  T794]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.399057][  T794]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.399064][  T794]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.399067][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399069][  T794]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.399073][  T794]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.399077][  T794]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.399079][  T794]  ? 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))
[   27.399082][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399083][  T794]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.399087][  T794]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.399091][  T794]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.399093][  T794]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.399099][  T794]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.399101][  T794]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.399103][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399105][  T794]  ? 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)
[   27.399109][  T794]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.399110][  T794]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.399113][  T794]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.399116][  T794]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.399118][  T794]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.399121][  T794]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.399124][  T794]  _printk (kernel/printk/printk.c:2504)
[   27.399128][  T794]  ? snapshot_read.cold (user.c:?)
[   27.399132][  T794]  ? br_multicast_flood (??:?)
[   27.399135][  T794]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   27.399136][  T794]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.399138][  T794]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.399142][  T794]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   27.399146][  T794]  br_init_port (net/bridge/br_stp_if.c:39)
[   27.399148][  T794]  new_nbp (net/bridge/br_if.c:449)
[   27.399152][  T794]  br_add_if (net/bridge/br_if.c:592)
[   27.399155][  T794]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   27.399158][  T794]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   27.399163][  T794]  do_set_master (net/core/rtnetlink.c:3071)
[   27.399167][  T794]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   27.399171][  T794]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   27.399174][  T794]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   27.399175][  T794]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   27.399178][  T794]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   27.399181][  T794]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.399183][  T794]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.399185][  T794]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.399187][  T794]  ? kasan_save_stack (mm/kasan/common.c:58)
[   27.399190][  T794]  ? kasan_save_stack (mm/kasan/common.c:57)
[   27.399191][  T794]  ? kasan_save_track (mm/kasan/common.c:78)
[   27.399192][  T794]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.399194][  T794]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.399196][  T794]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   27.399199][  T794]  ? ___sys_sendmsg (net/socket.c:2758)
[   27.399203][  T794]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.399204][  T794]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.399207][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399209][  T794]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.399210][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399211][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399213][  T794]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   27.399215][  T794]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   27.399218][  T794]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   27.399220][  T794]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.399223][  T794]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   27.399224][  T794]  ? nla_get_range_signed (lib/nlattr.c:270)
[   27.399229][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399231][  T794]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   27.399236][  T794]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.399242][  T794]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.399244][  T794]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.399248][  T794]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.399250][  T794]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.399252][  T794]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.399254][  T794]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.399258][  T794]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.399260][  T794]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.399263][  T794]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.399264][  T794]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.399269][  T794]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.399271][  T794]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.399274][  T794]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.399277][  T794]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.399280][  T794]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   27.399286][  T794]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   27.399288][  T794]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   27.399293][  T794]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.399297][  T794]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   27.399299][  T794]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.399304][  T794]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.399307][  T794]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   27.399311][  T794]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.399313][  T794]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   27.399318][  T794]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   27.399321][  T794]  ____sys_sendmsg (net/socket.c:2713)
[   27.399323][  T794]  ? copy_msghdr_from_user (net/socket.c:2650)
[   27.399326][  T794]  ? sock_write_iter (net/socket.c:1269)
[   27.399327][  T794]  ? move_addr_to_kernel (net/socket.c:258)
[   27.399335][  T794]  ___sys_sendmsg (net/socket.c:2767)
[   27.399337][  T794]  ? copy_msghdr_from_user (net/socket.c:2619)
[   27.399354][  T794]  __sys_sendmsg (net/socket.c:2799)
[   27.399356][  T794]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   27.399363][  T794]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.399366][  T794]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.399369][  T794]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.399372][  T794]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.399374][  T794] RIP: 0033:0x7f2011fb354e
[   27.399378][  T794] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   27.399379][  T794] RSP: 002b:00007ffc45a14eb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   27.399382][  T794] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2011fb354e
[   27.399383][  T794] RDX: 0000000000000000 RSI: 00007ffc45a14f60 RDI: 0000000000000005
[   27.399384][  T794] RBP: 00007ffc45a14ec0 R08: 0000000000000000 R09: 0000000000000000
[   27.399385][  T794] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91958c
[   27.399385][  T794] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc45a15630
| [   29.070563][   T69] softirqs last disabled at (47104): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   29.070565][   T69] Preemption disabled at:
| [   29.070566][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.070574][   T69] Tainted: [W]=WARN
[   29.070575][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.070577][   T69] Workqueue: netns cleanup_net
[   29.070580][   T69] Call Trace:
[   29.070582][   T69]  <TASK>
[   29.070583][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.070589][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.070591][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.070596][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.070600][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.070604][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.070606][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.070613][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.070616][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.070619][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   29.070622][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.070625][   T69]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   29.070630][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.070635][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.070640][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.070643][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.070650][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.070654][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.070655][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.070659][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.070660][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.070665][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.070669][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.070671][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.070677][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.070680][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.070681][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.070683][   T69]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   29.070687][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.070689][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.070692][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.070695][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.070696][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   29.070698][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.070700][   T69]  ? kthread (kernel/kthread.c:436)
[   29.070702][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   29.070705][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   29.070710][   T69]  _printk (kernel/printk/printk.c:2504)
[   29.070714][   T69]  ? snapshot_read.cold (user.c:?)
[   29.070718][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.070722][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.070731][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.070734][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   29.070741][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.070743][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.070745][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.070747][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.070750][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.070754][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.070758][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   29.070764][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   29.070767][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   29.070771][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   29.070774][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.070778][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   29.070779][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.070783][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   29.070787][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   29.070791][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.070794][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.070796][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.070800][   T69]  process_one_work (kernel/workqueue.c:3387)
[   29.070806][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   29.070809][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.070817][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.070821][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.070823][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.070826][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.070829][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.070831][   T69]  kthread (kernel/kthread.c:436)
[   29.070833][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.070836][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.070839][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.070842][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   29.070845][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.070849][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.070852][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   30.502690][  T941] softirqs last disabled at (13748): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   30.502693][  T941] Preemption disabled at:
| [   30.502694][  T941] vprintk_emit (kernel/printk/printk.c:2471)
| [   30.502702][  T941] Tainted: [W]=WARN
[   30.502703][  T941] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.502705][  T941] Call Trace:
[   30.502706][  T941]  <TASK>
[   30.502708][  T941]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.502714][  T941]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   30.502715][  T941]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.502720][  T941]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.502724][  T941]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   30.502728][  T941]  __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))
[   30.502736][  T941]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.502742][  T941]  ? 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)
[   30.502745][  T941]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.502749][  T941]  put_chars (drivers/char/virtio_console.c:1176)
[   30.502751][  T941]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.502758][  T941]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.502766][  T941]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.502769][  T941]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.502774][  T941]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.502778][  T941]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.502780][  T941]  ? 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))
[   30.502783][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502785][  T941]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.502790][  T941]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.502794][  T941]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.502796][  T941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502801][  T941]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.502804][  T941]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.502806][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502808][  T941]  ? 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)
[   30.502811][  T941]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.502813][  T941]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.502816][  T941]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.502819][  T941]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.502821][  T941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502823][  T941]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   30.502825][  T941]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   30.502828][  T941]  _printk (kernel/printk/printk.c:2504)
[   30.502832][  T941]  ? snapshot_read.cold (user.c:?)
[   30.502834][  T941]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.502836][  T941]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.502839][  T941]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.502841][  T941]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   30.502845][  T941]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   30.502848][  T941]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.502850][  T941]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   30.502853][  T941]  ? netdev_notice (net/core/dev.c:13194)
[   30.502855][  T941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.502858][  T941]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.502861][  T941]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   30.502864][  T941]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.502866][  T941]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   30.502869][  T941]  ? 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))
[   30.502874][  T941]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   30.502877][  T941]  ? __kernel_text_address (kernel/extable.c:79)
[   30.502879][  T941]  ? write_profile (profile.c:?)
[   30.502883][  T941]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   30.502889][  T941]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   30.502893][  T941]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   30.502895][  T941]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   30.502896][  T941]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   30.502898][  T941]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   30.502901][  T941]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.502903][  T941]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.502905][  T941]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.502907][  T941]  ? kasan_save_stack (mm/kasan/common.c:58)
[   30.502909][  T941]  ? kasan_save_stack (mm/kasan/common.c:57)
[   30.502910][  T941]  ? kasan_save_track (mm/kasan/common.c:78)
[   30.502911][  T941]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   30.502914][  T941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502915][  T941]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   30.502918][  T941]  ? ___sys_sendmsg (net/socket.c:2758)
[   30.502922][  T941]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.502924][  T941]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.502927][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502928][  T941]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.502930][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502931][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502933][  T941]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   30.502935][  T941]  ? __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)
[   30.502938][  T941]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   30.502939][  T941]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.502943][  T941]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   30.502944][  T941]  ? nla_get_range_signed (lib/nlattr.c:270)
[   30.502949][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.502951][  T941]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   30.502956][  T941]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   30.502962][  T941]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.502964][  T941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502968][  T941]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.502970][  T941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.502972][  T941]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.502974][  T941]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.502977][  T941]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.502979][  T941]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.502983][  T941]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.502984][  T941]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.502988][  T941]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.502990][  T941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.502994][  T941]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.502997][  T941]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.503000][  T941]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   30.503006][  T941]  ? 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))
[   30.503008][  T941]  ? 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))
[   30.503013][  T941]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.503016][  T941]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   30.503019][  T941]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.503023][  T941]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.503027][  T941]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   30.503031][  T941]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.503033][  T941]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   30.503038][  T941]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   30.503040][  T941]  ____sys_sendmsg (net/socket.c:2713)
[   30.503043][  T941]  ? copy_msghdr_from_user (net/socket.c:2650)
[   30.503045][  T941]  ? sock_write_iter (net/socket.c:1269)
[   30.503047][  T941]  ? move_addr_to_kernel (net/socket.c:258)
[   30.503054][  T941]  ___sys_sendmsg (net/socket.c:2767)
[   30.503057][  T941]  ? copy_msghdr_from_user (net/socket.c:2619)
[   30.503073][  T941]  __sys_sendmsg (net/socket.c:2799)
[   30.503076][  T941]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   30.503082][  T941]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.503085][  T941]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.503088][  T941]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   30.503091][  T941]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.503093][  T941] RIP: 0033:0x7ffba049754e
[   30.503096][  T941] 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
[   30.503098][  T941] RSP: 002b:00007ffdf374fdc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   30.503101][  T941] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ffba049754e
[   30.503102][  T941] RDX: 0000000000000000 RSI: 00007ffdf374fe70 RDI: 0000000000000005
[   30.503103][  T941] RBP: 00007ffdf374fdd0 R08: 0000000000000000 R09: 0000000000000000
[   30.503104][  T941] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91958f
[   30.503104][  T941] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf3750540
| [   42.331042][ T1240] softirqs last disabled at (18094): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   42.331044][ T1240] Preemption disabled at:
| [   42.331045][ T1240] vprintk_emit (kernel/printk/printk.c:2471)
| [   42.331054][ T1240] Tainted: [W]=WARN
[   42.331055][ T1240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.331056][ T1240] Call Trace:
[   42.331058][ T1240]  <TASK>
[   42.331059][ T1240]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.331066][ T1240]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   42.331068][ T1240]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.331073][ T1240]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.331077][ 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)
[   42.331081][ 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))
[   42.331083][ T1240]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.331089][ 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)
[   42.331092][ T1240]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.331096][ T1240]  put_chars (drivers/char/virtio_console.c:1176)
[   42.331098][ T1240]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.331099][ T1240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.331103][ T1240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.331108][ T1240]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.331116][ T1240]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.331119][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331121][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.331125][ T1240]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.331128][ T1240]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.331130][ 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))
[   42.331134][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331135][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.331139][ T1240]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.331143][ T1240]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.331145][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.331150][ T1240]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.331153][ T1240]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.331155][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331157][ 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)
[   42.331160][ T1240]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.331162][ T1240]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.331165][ T1240]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.331168][ T1240]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.331170][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.331172][ T1240]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   42.331176][ T1240]  _printk (kernel/printk/printk.c:2504)
[   42.331180][ T1240]  ? snapshot_read.cold (user.c:?)
[   42.331183][ T1240]  ? br_multicast_flood (??:?)
[   42.331187][ T1240]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   42.331188][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   42.331189][ T1240]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   42.331194][ T1240]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   42.331198][ T1240]  br_init_port (net/bridge/br_stp_if.c:39)
[   42.331200][ T1240]  new_nbp (net/bridge/br_if.c:449)
[   42.331204][ T1240]  br_add_if (net/bridge/br_if.c:592)
[   42.331206][ T1240]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   42.331210][ T1240]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   42.331215][ T1240]  do_set_master (net/core/rtnetlink.c:3071)
[   42.331219][ T1240]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   42.331222][ T1240]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   42.331226][ T1240]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   42.331227][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   42.331230][ T1240]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   42.331233][ T1240]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.331235][ T1240]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.331237][ T1240]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.331239][ T1240]  ? kasan_save_stack (mm/kasan/common.c:58)
[   42.331241][ T1240]  ? kasan_save_stack (mm/kasan/common.c:57)
[   42.331242][ T1240]  ? kasan_save_track (mm/kasan/common.c:78)
[   42.331244][ T1240]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   42.331246][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.331248][ T1240]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   42.331251][ T1240]  ? ___sys_sendmsg (net/socket.c:2758)
[   42.331255][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.331256][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.331259][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331261][ T1240]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.331262][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331263][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331265][ T1240]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   42.331267][ 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)
[   42.331270][ T1240]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   42.331272][ T1240]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.331275][ T1240]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   42.331276][ T1240]  ? nla_get_range_signed (lib/nlattr.c:270)
[   42.331281][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331283][ T1240]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   42.331288][ T1240]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   42.331294][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.331296][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.331300][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.331302][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.331304][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.331306][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.331310][ T1240]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.331312][ T1240]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   42.331315][ T1240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.331316][ T1240]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.331320][ T1240]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.331322][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.331326][ T1240]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   42.331329][ T1240]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.331332][ T1240]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   42.331338][ 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))
[   42.331340][ 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))
[   42.331344][ T1240]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   42.331348][ T1240]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.331351][ T1240]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.331355][ T1240]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   42.331359][ T1240]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   42.331363][ T1240]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.331364][ T1240]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   42.331369][ T1240]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   42.331372][ T1240]  ____sys_sendmsg (net/socket.c:2713)
[   42.331374][ T1240]  ? copy_msghdr_from_user (net/socket.c:2650)
[   42.331377][ T1240]  ? sock_write_iter (net/socket.c:1269)
[   42.331378][ T1240]  ? move_addr_to_kernel (net/socket.c:258)
[   42.331386][ T1240]  ___sys_sendmsg (net/socket.c:2767)
[   42.331388][ T1240]  ? copy_msghdr_from_user (net/socket.c:2619)
[   42.331404][ T1240]  __sys_sendmsg (net/socket.c:2799)
[   42.331407][ T1240]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   42.331414][ T1240]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.331417][ T1240]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   42.331420][ T1240]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   42.331422][ T1240]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   42.331424][ T1240] RIP: 0033:0x7fa88808454e
[   42.331428][ 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
[   42.331429][ T1240] RSP: 002b:00007ffc5712d940 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   42.331432][ T1240] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa88808454e
[   42.331433][ T1240] RDX: 0000000000000000 RSI: 00007ffc5712d9f0 RDI: 0000000000000005
[   42.331434][ T1240] RBP: 00007ffc5712d950 R08: 0000000000000000 R09: 0000000000000000
[   42.331435][ T1240] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91959b
[   42.331436][ T1240] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5712e0c0
| [   43.752829][ T1333] softirqs last disabled at (22116): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   43.752831][ T1333] Preemption disabled at:
| [   43.752832][ T1333] vprintk_emit (kernel/printk/printk.c:2471)
| [   43.752840][ T1333] Tainted: [W]=WARN
[   43.752841][ T1333] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.752843][ T1333] Call Trace:
[   43.752844][ T1333]  <TASK>
[   43.752846][ T1333]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   43.752852][ T1333]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   43.752853][ T1333]  __might_resched.cold (kernel/sched/core.c:9234)
[   43.752858][ T1333]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   43.752862][ T1333]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   43.752866][ T1333]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   43.752868][ T1333]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.752874][ T1333]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   43.752877][ T1333]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.752881][ T1333]  put_chars (drivers/char/virtio_console.c:1176)
[   43.752883][ T1333]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   43.752884][ T1333]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.752888][ T1333]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.752893][ T1333]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   43.752900][ T1333]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   43.752903][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.752905][ T1333]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.752909][ T1333]  console_emit_next_record (kernel/printk/printk.c:3183)
[   43.752913][ T1333]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   43.752915][ T1333]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   43.752918][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.752920][ T1333]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.752923][ T1333]  console_flush_one_record (kernel/printk/printk.c:3268)
[   43.752927][ T1333]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   43.752929][ T1333]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.752934][ T1333]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   43.752937][ T1333]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   43.752939][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.752941][ T1333]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   43.752944][ T1333]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   43.752946][ T1333]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   43.752949][ T1333]  vprintk_emit (kernel/printk/printk.c:2479)
[   43.752952][ T1333]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   43.752953][ T1333]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.752956][ T1333]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   43.752960][ T1333]  _printk (kernel/printk/printk.c:2504)
[   43.752963][ T1333]  ? snapshot_read.cold (user.c:?)
[   43.752967][ T1333]  ? br_multicast_flood (??:?)
[   43.752970][ T1333]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.752971][ T1333]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.752973][ T1333]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.752977][ T1333]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   43.752981][ T1333]  br_init_port (net/bridge/br_stp_if.c:39)
[   43.752983][ T1333]  new_nbp (net/bridge/br_if.c:449)
[   43.752987][ T1333]  br_add_if (net/bridge/br_if.c:592)
[   43.752989][ T1333]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   43.752993][ T1333]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   43.752999][ T1333]  do_set_master (net/core/rtnetlink.c:3071)
[   43.753002][ T1333]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.753005][ T1333]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   43.753009][ T1333]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   43.753010][ T1333]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   43.753013][ T1333]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   43.753016][ T1333]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.753018][ T1333]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   43.753020][ T1333]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.753022][ T1333]  ? kasan_save_stack (mm/kasan/common.c:58)
[   43.753025][ T1333]  ? kasan_save_stack (mm/kasan/common.c:57)
[   43.753026][ T1333]  ? kasan_save_track (mm/kasan/common.c:78)
[   43.753027][ T1333]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   43.753029][ T1333]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.753031][ T1333]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   43.753034][ T1333]  ? ___sys_sendmsg (net/socket.c:2758)
[   43.753037][ T1333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.753039][ T1333]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.753042][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.753044][ T1333]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.753045][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.753046][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.753048][ T1333]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   43.753050][ T1333]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   43.753053][ T1333]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   43.753055][ T1333]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.753058][ T1333]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   43.753059][ T1333]  ? nla_get_range_signed (lib/nlattr.c:270)
[   43.753064][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.753066][ T1333]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   43.753071][ T1333]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.753076][ T1333]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.753078][ T1333]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.753082][ T1333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.753084][ T1333]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.753086][ T1333]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.753088][ T1333]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.753092][ T1333]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.753094][ T1333]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.753097][ T1333]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.753098][ T1333]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.753102][ T1333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.753104][ T1333]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.753107][ T1333]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   43.753111][ T1333]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.753113][ T1333]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   43.753120][ T1333]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   43.753122][ T1333]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   43.753126][ T1333]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   43.753130][ T1333]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   43.753132][ T1333]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.753136][ T1333]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   43.753140][ T1333]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   43.753144][ T1333]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.753145][ T1333]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   43.753151][ T1333]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   43.753153][ T1333]  ____sys_sendmsg (net/socket.c:2713)
[   43.753156][ T1333]  ? copy_msghdr_from_user (net/socket.c:2650)
[   43.753158][ T1333]  ? sock_write_iter (net/socket.c:1269)
[   43.753159][ T1333]  ? move_addr_to_kernel (net/socket.c:258)
[   43.753166][ T1333]  ___sys_sendmsg (net/socket.c:2767)
[   43.753169][ T1333]  ? copy_msghdr_from_user (net/socket.c:2619)
[   43.753185][ T1333]  __sys_sendmsg (net/socket.c:2799)
[   43.753188][ T1333]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   43.753194][ T1333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.753197][ T1333]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   43.753200][ T1333]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   43.753203][ T1333]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.753205][ T1333] RIP: 0033:0x7fa676b8654e
[   43.753208][ T1333] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   43.753210][ T1333] RSP: 002b:00007ffdc7578910 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   43.753213][ T1333] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa676b8654e
[   43.753214][ T1333] RDX: 0000000000000000 RSI: 00007ffdc75789c0 RDI: 0000000000000005
[   43.753215][ T1333] RBP: 00007ffdc7578920 R08: 0000000000000000 R09: 0000000000000000
[   43.753216][ T1333] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91959c
[   43.753217][ T1333] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdc7579090
| [   45.109580][ T1408] softirqs last disabled at (12962): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   45.109583][ T1408] Preemption disabled at:
| [   45.109584][ T1408] vprintk_emit (kernel/printk/printk.c:2471)
| [   45.109591][ T1408] Tainted: [W]=WARN
[   45.109592][ T1408] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.109594][ T1408] Call Trace:
[   45.109595][ T1408]  <TASK>
[   45.109597][ T1408]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   45.109602][ T1408]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   45.109604][ T1408]  __might_resched.cold (kernel/sched/core.c:9234)
[   45.109609][ T1408]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   45.109613][ T1408]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   45.109617][ T1408]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   45.109619][ T1408]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.109626][ T1408]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   45.109628][ T1408]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.109632][ T1408]  put_chars (drivers/char/virtio_console.c:1176)
[   45.109634][ T1408]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   45.109635][ T1408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.109639][ T1408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.109644][ T1408]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   45.109652][ T1408]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   45.109654][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109656][ T1408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.109660][ T1408]  console_emit_next_record (kernel/printk/printk.c:3183)
[   45.109664][ T1408]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   45.109666][ T1408]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   45.109669][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109671][ T1408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.109675][ T1408]  console_flush_one_record (kernel/printk/printk.c:3268)
[   45.109679][ T1408]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   45.109681][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.109686][ T1408]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   45.109689][ T1408]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   45.109691][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109693][ T1408]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   45.109696][ T1408]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   45.109698][ T1408]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   45.109701][ T1408]  vprintk_emit (kernel/printk/printk.c:2479)
[   45.109704][ T1408]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   45.109706][ T1408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.109709][ T1408]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   45.109712][ T1408]  _printk (kernel/printk/printk.c:2504)
[   45.109716][ T1408]  ? snapshot_read.cold (user.c:?)
[   45.109719][ T1408]  ? br_multicast_flood (??:?)
[   45.109723][ T1408]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.109724][ T1408]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.109725][ T1408]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.109730][ T1408]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   45.109734][ T1408]  br_init_port (net/bridge/br_stp_if.c:39)
[   45.109736][ T1408]  new_nbp (net/bridge/br_if.c:449)
[   45.109744][ T1408]  br_add_if (net/bridge/br_if.c:592)
[   45.109747][ T1408]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   45.109750][ T1408]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   45.109756][ T1408]  do_set_master (net/core/rtnetlink.c:3071)
[   45.109760][ T1408]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.109763][ T1408]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   45.109766][ T1408]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   45.109767][ T1408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   45.109770][ T1408]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   45.109774][ T1408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.109775][ T1408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.109777][ T1408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.109780][ T1408]  ? kasan_save_stack (mm/kasan/common.c:58)
[   45.109782][ T1408]  ? kasan_save_stack (mm/kasan/common.c:57)
[   45.109783][ T1408]  ? kasan_save_track (mm/kasan/common.c:78)
[   45.109784][ T1408]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   45.109787][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.109795][ T1408]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   45.109798][ T1408]  ? ___sys_sendmsg (net/socket.c:2758)
[   45.109801][ T1408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.109803][ T1408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.109806][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109808][ T1408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.109809][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109810][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109812][ T1408]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   45.109814][ T1408]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   45.109817][ T1408]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   45.109819][ T1408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.109822][ T1408]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   45.109823][ T1408]  ? nla_get_range_signed (lib/nlattr.c:270)
[   45.109828][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109830][ T1408]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   45.109835][ T1408]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.109840][ T1408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.109842][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.109846][ T1408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.109848][ T1408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.109851][ T1408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.109852][ T1408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.109856][ T1408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.109858][ T1408]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.109861][ T1408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.109862][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.109867][ T1408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.109868][ T1408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.109872][ T1408]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   45.109875][ T1408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.109878][ T1408]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   45.109884][ T1408]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   45.109886][ T1408]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   45.109890][ T1408]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   45.109894][ T1408]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   45.109896][ T1408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.109900][ T1408]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   45.109904][ T1408]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   45.109908][ T1408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.109909][ T1408]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   45.109915][ T1408]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   45.109917][ T1408]  ____sys_sendmsg (net/socket.c:2713)
[   45.109919][ T1408]  ? copy_msghdr_from_user (net/socket.c:2650)
[   45.109922][ T1408]  ? sock_write_iter (net/socket.c:1269)
[   45.109923][ T1408]  ? move_addr_to_kernel (net/socket.c:258)
[   45.109930][ T1408]  ___sys_sendmsg (net/socket.c:2767)
[   45.109933][ T1408]  ? copy_msghdr_from_user (net/socket.c:2619)
[   45.109948][ T1408]  __sys_sendmsg (net/socket.c:2799)
[   45.109951][ T1408]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   45.109957][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.109960][ T1408]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   45.109963][ T1408]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   45.109966][ T1408]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   45.109968][ T1408] RIP: 0033:0x7f5f4134054e
[   45.109972][ T1408] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   45.109973][ T1408] RSP: 002b:00007ffc4ae9fa50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   45.109976][ T1408] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5f4134054e
[   45.109977][ T1408] RDX: 0000000000000000 RSI: 00007ffc4ae9fb00 RDI: 0000000000000005
[   45.109978][ T1408] RBP: 00007ffc4ae9fa60 R08: 0000000000000000 R09: 0000000000000000
[   45.109979][ T1408] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91959e
[   45.109979][ T1408] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc4aea01d0
| [   46.408164][ T1483] softirqs last disabled at (21835): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   46.408166][ T1483] Preemption disabled at:
| [   46.408167][ T1483] vprintk_emit (kernel/printk/printk.c:2471)
| [   46.408176][ T1483] Tainted: [W]=WARN
[   46.408176][ T1483] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.408178][ T1483] Call Trace:
[   46.408179][ T1483]  <TASK>
[   46.408181][ T1483]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   46.408187][ T1483]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   46.408188][ T1483]  __might_resched.cold (kernel/sched/core.c:9234)
[   46.408193][ T1483]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   46.408197][ T1483]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   46.408201][ T1483]  __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))
[   46.408203][ T1483]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.408209][ T1483]  ? 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)
[   46.408212][ T1483]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.408215][ T1483]  put_chars (drivers/char/virtio_console.c:1176)
[   46.408218][ T1483]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   46.408219][ T1483]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   46.408222][ T1483]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   46.408227][ T1483]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   46.408235][ T1483]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   46.408237][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408239][ T1483]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.408243][ T1483]  console_emit_next_record (kernel/printk/printk.c:3183)
[   46.408247][ T1483]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   46.408249][ T1483]  ? 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))
[   46.408252][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408254][ T1483]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.408258][ T1483]  console_flush_one_record (kernel/printk/printk.c:3268)
[   46.408262][ T1483]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   46.408264][ T1483]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.408269][ T1483]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   46.408271][ T1483]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   46.408273][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408275][ T1483]  ? 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)
[   46.408279][ T1483]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   46.408280][ T1483]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   46.408283][ T1483]  vprintk_emit (kernel/printk/printk.c:2479)
[   46.408286][ T1483]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   46.408288][ T1483]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.408290][ T1483]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   46.408294][ T1483]  _printk (kernel/printk/printk.c:2504)
[   46.408297][ T1483]  ? snapshot_read.cold (user.c:?)
[   46.408301][ T1483]  ? br_multicast_flood (??:?)
[   46.408304][ T1483]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   46.408305][ T1483]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   46.408307][ T1483]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   46.408311][ T1483]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   46.408315][ T1483]  br_init_port (net/bridge/br_stp_if.c:39)
[   46.408317][ T1483]  new_nbp (net/bridge/br_if.c:449)
[   46.408320][ T1483]  br_add_if (net/bridge/br_if.c:592)
[   46.408323][ T1483]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   46.408326][ T1483]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   46.408331][ T1483]  do_set_master (net/core/rtnetlink.c:3071)
[   46.408335][ T1483]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   46.408338][ T1483]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   46.408341][ T1483]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   46.408343][ T1483]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   46.408345][ T1483]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   46.408348][ T1483]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   46.408350][ T1483]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.408352][ T1483]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   46.408354][ T1483]  ? kasan_save_stack (mm/kasan/common.c:58)
[   46.408357][ T1483]  ? kasan_save_stack (mm/kasan/common.c:57)
[   46.408358][ T1483]  ? kasan_save_track (mm/kasan/common.c:78)
[   46.408359][ T1483]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   46.408361][ T1483]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.408363][ T1483]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   46.408366][ T1483]  ? ___sys_sendmsg (net/socket.c:2758)
[   46.408370][ T1483]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.408372][ T1483]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   46.408375][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408376][ T1483]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.408378][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408379][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408380][ T1483]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   46.408382][ T1483]  ? __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)
[   46.408385][ T1483]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   46.408387][ T1483]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   46.408390][ T1483]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   46.408391][ T1483]  ? nla_get_range_signed (lib/nlattr.c:270)
[   46.408396][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408398][ T1483]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   46.408403][ T1483]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   46.408408][ T1483]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   46.408410][ T1483]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.408414][ T1483]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.408416][ T1483]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   46.408418][ T1483]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   46.408420][ T1483]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.408424][ T1483]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   46.408426][ T1483]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   46.408428][ T1483]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   46.408430][ T1483]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.408434][ T1483]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.408436][ T1483]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   46.408439][ T1483]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   46.408442][ T1483]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   46.408445][ T1483]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   46.408451][ T1483]  ? 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))
[   46.408453][ T1483]  ? 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))
[   46.408458][ T1483]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   46.408461][ T1483]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   46.408464][ T1483]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   46.408468][ T1483]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   46.408472][ T1483]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   46.408476][ T1483]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.408477][ T1483]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   46.408482][ T1483]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   46.408485][ T1483]  ____sys_sendmsg (net/socket.c:2713)
[   46.408487][ T1483]  ? copy_msghdr_from_user (net/socket.c:2650)
[   46.408489][ T1483]  ? sock_write_iter (net/socket.c:1269)
[   46.408491][ T1483]  ? move_addr_to_kernel (net/socket.c:258)
[   46.408498][ T1483]  ___sys_sendmsg (net/socket.c:2767)
[   46.408501][ T1483]  ? copy_msghdr_from_user (net/socket.c:2619)
[   46.408516][ T1483]  __sys_sendmsg (net/socket.c:2799)
[   46.408519][ T1483]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   46.408525][ T1483]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.408528][ T1483]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   46.408531][ T1483]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   46.408533][ T1483]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.408535][ T1483] RIP: 0033:0x7f983fbc154e
[   46.408539][ T1483] 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
[   46.408541][ T1483] RSP: 002b:00007ffd9ce9b290 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   46.408543][ T1483] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f983fbc154e
[   46.408545][ T1483] RDX: 0000000000000000 RSI: 00007ffd9ce9b340 RDI: 0000000000000005
[   46.408546][ T1483] RBP: 00007ffd9ce9b2a0 R08: 0000000000000000 R09: 0000000000000000
[   46.408546][ T1483] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91959f
[   46.408547][ T1483] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd9ce9ba10
| [   47.709430][   T69] softirqs last disabled at (386374): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   47.709432][   T69] Preemption disabled at:
| [   47.709432][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.709441][   T69] Tainted: [W]=WARN
[   47.709442][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.709443][   T69] Workqueue: netns cleanup_net
[   47.709447][   T69] Call Trace:
[   47.709448][   T69]  <TASK>
[   47.709450][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.709456][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.709458][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.709463][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.709466][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.709471][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   47.709473][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.709479][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   47.709482][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.709486][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   47.709488][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.709490][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.709493][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.709496][   T69]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.709502][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.709505][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.709511][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.709514][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.709519][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.709523][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.709525][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   47.709528][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.709530][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.709535][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.709539][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.709541][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.709547][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.709550][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.709552][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.709553][   T69]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   47.709557][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.709559][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.709562][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.709565][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.709566][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   47.709568][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   47.709570][   T69]  ? kthread (kernel/kthread.c:436)
[   47.709572][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   47.709575][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   47.709580][   T69]  _printk (kernel/printk/printk.c:2504)
[   47.709584][   T69]  ? snapshot_read.cold (user.c:?)
[   47.709588][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   47.709592][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   47.709596][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   47.709599][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   47.709604][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.709606][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   47.709608][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   47.709610][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   47.709613][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   47.709617][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   47.709621][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   47.709627][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   47.709631][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   47.709634][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   47.709638][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   47.709642][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   47.709643][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.709647][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   47.709652][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   47.709655][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   47.709659][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.709661][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.709664][   T69]  process_one_work (kernel/workqueue.c:3387)
[   47.709671][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   47.709674][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.709682][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   47.709686][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   47.709689][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   47.709691][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   47.709694][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   47.709696][   T69]  kthread (kernel/kthread.c:436)
[   47.709698][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   47.709702][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   47.709705][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.709707][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   47.709711][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   47.709714][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   47.709717][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   49.063234][ T1616] softirqs last disabled at (13846): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   49.063236][ T1616] Preemption disabled at:
| [   49.063237][ T1616] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.063246][ T1616] Tainted: [W]=WARN
[   49.063246][ T1616] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.063248][ T1616] Call Trace:
[   49.063250][ T1616]  <TASK>
[   49.063251][ T1616]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.063257][ T1616]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.063259][ T1616]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.063264][ T1616]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.063268][ T1616]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   49.063272][ T1616]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   49.063274][ T1616]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.063281][ T1616]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   49.063284][ T1616]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.063287][ T1616]  put_chars (drivers/char/virtio_console.c:1176)
[   49.063290][ T1616]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.063296][ T1616]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.063304][ T1616]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.063307][ T1616]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.063312][ T1616]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.063316][ T1616]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.063318][ T1616]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   49.063321][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063324][ T1616]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.063328][ T1616]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.063332][ T1616]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.063334][ T1616]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.063339][ T1616]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.063342][ T1616]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.063344][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063345][ T1616]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   49.063349][ T1616]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.063351][ T1616]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.063353][ T1616]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.063357][ T1616]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.063358][ T1616]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.063360][ T1616]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   49.063362][ T1616]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   49.063366][ T1616]  _printk (kernel/printk/printk.c:2504)
[   49.063370][ T1616]  ? snapshot_read.cold (user.c:?)
[   49.063371][ T1616]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.063374][ T1616]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.063376][ T1616]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.063378][ T1616]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   49.063382][ T1616]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   49.063385][ T1616]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.063387][ T1616]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   49.063390][ T1616]  ? netdev_notice (net/core/dev.c:13194)
[   49.063393][ T1616]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.063396][ T1616]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.063398][ T1616]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   49.063402][ T1616]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.063404][ T1616]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   49.063406][ T1616]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   49.063411][ T1616]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   49.063414][ T1616]  ? __kernel_text_address (kernel/extable.c:79)
[   49.063416][ T1616]  ? write_profile (profile.c:?)
[   49.063420][ T1616]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   49.063426][ T1616]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.063429][ T1616]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   49.063432][ T1616]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   49.063433][ T1616]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   49.063435][ T1616]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   49.063438][ T1616]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.063440][ T1616]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.063442][ T1616]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.063444][ T1616]  ? kasan_save_stack (mm/kasan/common.c:58)
[   49.063446][ T1616]  ? kasan_save_stack (mm/kasan/common.c:57)
[   49.063447][ T1616]  ? kasan_save_track (mm/kasan/common.c:78)
[   49.063448][ T1616]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   49.063451][ T1616]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.063453][ T1616]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   49.063455][ T1616]  ? ___sys_sendmsg (net/socket.c:2758)
[   49.063459][ T1616]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.063461][ T1616]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.063464][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063465][ T1616]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.063467][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063468][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063470][ T1616]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   49.063472][ T1616]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   49.063475][ T1616]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   49.063476][ T1616]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.063480][ T1616]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   49.063481][ T1616]  ? nla_get_range_signed (lib/nlattr.c:270)
[   49.063486][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063488][ T1616]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   49.063493][ T1616]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   49.063499][ T1616]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.063500][ T1616]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.063505][ T1616]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.063507][ T1616]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.063509][ T1616]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.063510][ T1616]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.063514][ T1616]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.063516][ T1616]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   49.063519][ T1616]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.063521][ T1616]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.063525][ T1616]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.063527][ T1616]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.063530][ T1616]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   49.063534][ T1616]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.063537][ T1616]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   49.063543][ T1616]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   49.063545][ T1616]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   49.063549][ T1616]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   49.063553][ T1616]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   49.063556][ T1616]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.063560][ T1616]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   49.063564][ T1616]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   49.063568][ T1616]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.063569][ T1616]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   49.063575][ T1616]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   49.063578][ T1616]  ____sys_sendmsg (net/socket.c:2713)
[   49.063580][ T1616]  ? copy_msghdr_from_user (net/socket.c:2650)
[   49.063582][ T1616]  ? sock_write_iter (net/socket.c:1269)
[   49.063584][ T1616]  ? move_addr_to_kernel (net/socket.c:258)
[   49.063591][ T1616]  ___sys_sendmsg (net/socket.c:2767)
[   49.063594][ T1616]  ? copy_msghdr_from_user (net/socket.c:2619)
[   49.063610][ T1616]  __sys_sendmsg (net/socket.c:2799)
[   49.063613][ T1616]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   49.063619][ T1616]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.063622][ T1616]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   49.063625][ T1616]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   49.063628][ T1616]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   49.063630][ T1616] RIP: 0033:0x7fc3ed83d54e
[   49.063634][ T1616] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   49.063635][ T1616] RSP: 002b:00007ffc1d00c8c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   49.063638][ T1616] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc3ed83d54e
[   49.063639][ T1616] RDX: 0000000000000000 RSI: 00007ffc1d00c970 RDI: 0000000000000005
[   49.063640][ T1616] RBP: 00007ffc1d00c8d0 R08: 0000000000000000 R09: 0000000000000000
[   49.063641][ T1616] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195a2
[   49.063642][ T1616] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc1d00d040
| [   61.016285][ T1918] softirqs last disabled at (15298): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   61.016288][ T1918] Preemption disabled at:
| [   61.016289][ T1918] vprintk_emit (kernel/printk/printk.c:2471)
| [   61.016297][ T1918] Tainted: [W]=WARN
[   61.016298][ T1918] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   61.016299][ T1918] Call Trace:
[   61.016301][ T1918]  <TASK>
[   61.016302][ T1918]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   61.016309][ T1918]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   61.016310][ T1918]  __might_resched.cold (kernel/sched/core.c:9234)
[   61.016315][ T1918]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   61.016319][ T1918]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   61.016323][ T1918]  __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))
[   61.016325][ T1918]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.016332][ T1918]  ? 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)
[   61.016335][ T1918]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.016338][ T1918]  put_chars (drivers/char/virtio_console.c:1176)
[   61.016341][ T1918]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   61.016342][ T1918]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.016346][ T1918]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.016352][ T1918]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   61.016359][ T1918]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   61.016362][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016364][ T1918]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.016368][ T1918]  console_emit_next_record (kernel/printk/printk.c:3183)
[   61.016372][ T1918]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   61.016374][ T1918]  ? 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))
[   61.016377][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016379][ T1918]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.016383][ T1918]  console_flush_one_record (kernel/printk/printk.c:3268)
[   61.016388][ T1918]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   61.016390][ T1918]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.016395][ T1918]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   61.016398][ T1918]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   61.016400][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016402][ T1918]  ? 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)
[   61.016405][ T1918]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   61.016407][ T1918]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   61.016410][ T1918]  vprintk_emit (kernel/printk/printk.c:2479)
[   61.016413][ T1918]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   61.016415][ T1918]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.016418][ T1918]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   61.016422][ T1918]  _printk (kernel/printk/printk.c:2504)
[   61.016426][ T1918]  ? snapshot_read.cold (user.c:?)
[   61.016429][ T1918]  ? br_multicast_flood (??:?)
[   61.016433][ T1918]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   61.016434][ T1918]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.016435][ T1918]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.016440][ T1918]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   61.016444][ T1918]  br_init_port (net/bridge/br_stp_if.c:39)
[   61.016447][ T1918]  new_nbp (net/bridge/br_if.c:449)
[   61.016450][ T1918]  br_add_if (net/bridge/br_if.c:592)
[   61.016453][ T1918]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   61.016457][ T1918]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   61.016462][ T1918]  do_set_master (net/core/rtnetlink.c:3071)
[   61.016466][ T1918]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   61.016470][ T1918]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   61.016473][ T1918]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   61.016475][ T1918]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   61.016477][ T1918]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   61.016481][ T1918]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.016483][ T1918]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   61.016485][ T1918]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.016487][ T1918]  ? kasan_save_stack (mm/kasan/common.c:58)
[   61.016489][ T1918]  ? kasan_save_stack (mm/kasan/common.c:57)
[   61.016491][ T1918]  ? kasan_save_track (mm/kasan/common.c:78)
[   61.016492][ T1918]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   61.016494][ T1918]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.016496][ T1918]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   61.016499][ T1918]  ? ___sys_sendmsg (net/socket.c:2758)
[   61.016503][ T1918]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.016505][ T1918]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.016508][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016510][ T1918]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.016511][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016512][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016514][ T1918]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   61.016516][ T1918]  ? __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)
[   61.016519][ T1918]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   61.016521][ T1918]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.016524][ T1918]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   61.016525][ T1918]  ? nla_get_range_signed (lib/nlattr.c:270)
[   61.016530][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016533][ T1918]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   61.016538][ T1918]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.016544][ T1918]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.016545][ T1918]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.016550][ T1918]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.016552][ T1918]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.016554][ T1918]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.016556][ T1918]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.016560][ T1918]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.016562][ T1918]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.016565][ T1918]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.016567][ T1918]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.016571][ T1918]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.016573][ T1918]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.016577][ T1918]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   61.016580][ T1918]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.016583][ T1918]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   61.016590][ T1918]  ? 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))
[   61.016592][ T1918]  ? 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))
[   61.016596][ T1918]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   61.016600][ T1918]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   61.016603][ T1918]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.016607][ T1918]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   61.016611][ T1918]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   61.016615][ T1918]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.016617][ T1918]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   61.016622][ T1918]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   61.016625][ T1918]  ____sys_sendmsg (net/socket.c:2713)
[   61.016628][ T1918]  ? copy_msghdr_from_user (net/socket.c:2650)
[   61.016630][ T1918]  ? sock_write_iter (net/socket.c:1269)
[   61.016632][ T1918]  ? move_addr_to_kernel (net/socket.c:258)
[   61.016639][ T1918]  ___sys_sendmsg (net/socket.c:2767)
[   61.016642][ T1918]  ? copy_msghdr_from_user (net/socket.c:2619)
[   61.016659][ T1918]  __sys_sendmsg (net/socket.c:2799)
[   61.016663][ T1918]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   61.016669][ T1918]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.016672][ T1918]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   61.016675][ T1918]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   61.016678][ T1918]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   61.016680][ T1918] RIP: 0033:0x7f3d4727354e
[   61.016684][ T1918] 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
[   61.016686][ T1918] RSP: 002b:00007ffd2f705bb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   61.016689][ T1918] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3d4727354e
[   61.016690][ T1918] RDX: 0000000000000000 RSI: 00007ffd2f705c60 RDI: 0000000000000005
[   61.016691][ T1918] RBP: 00007ffd2f705bc0 R08: 0000000000000000 R09: 0000000000000000
[   61.016692][ T1918] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195ae
[   61.016693][ T1918] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd2f706330
| [   62.386620][ T2005] softirqs last disabled at (17324): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   62.386623][ T2005] Preemption disabled at:
| [   62.386624][ T2005] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.386632][ T2005] Tainted: [W]=WARN
[   62.386633][ T2005] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.386635][ T2005] Call Trace:
[   62.386636][ T2005]  <TASK>
[   62.386638][ T2005]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.386644][ T2005]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.386646][ T2005]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.386651][ T2005]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.386655][ T2005]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.386660][ T2005]  __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))
[   62.386662][ T2005]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.386668][ T2005]  ? 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)
[   62.386671][ T2005]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.386675][ T2005]  put_chars (drivers/char/virtio_console.c:1176)
[   62.386677][ T2005]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.386679][ T2005]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.386682][ T2005]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.386688][ T2005]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.386696][ T2005]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.386698][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386701][ T2005]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.386705][ T2005]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.386709][ T2005]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.386711][ T2005]  ? 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))
[   62.386714][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386716][ T2005]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.386720][ T2005]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.386724][ T2005]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.386726][ T2005]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.386732][ T2005]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.386735][ T2005]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.386737][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386741][ T2005]  ? 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)
[   62.386745][ T2005]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.386746][ T2005]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.386749][ T2005]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.386753][ T2005]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.386755][ T2005]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.386757][ T2005]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.386761][ T2005]  _printk (kernel/printk/printk.c:2504)
[   62.386765][ T2005]  ? snapshot_read.cold (user.c:?)
[   62.386768][ T2005]  ? br_multicast_flood (??:?)
[   62.386771][ T2005]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   62.386773][ T2005]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.386774][ T2005]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.386778][ T2005]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   62.386783][ T2005]  br_init_port (net/bridge/br_stp_if.c:39)
[   62.386785][ T2005]  new_nbp (net/bridge/br_if.c:449)
[   62.386789][ T2005]  br_add_if (net/bridge/br_if.c:592)
[   62.386792][ T2005]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   62.386795][ T2005]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   62.386801][ T2005]  do_set_master (net/core/rtnetlink.c:3071)
[   62.386804][ T2005]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   62.386808][ T2005]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.386811][ T2005]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.386813][ T2005]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.386815][ T2005]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.386819][ T2005]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.386821][ T2005]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.386823][ T2005]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.386825][ T2005]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.386828][ T2005]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.386829][ T2005]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.386830][ T2005]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.386832][ T2005]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.386834][ T2005]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.386837][ T2005]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.386841][ T2005]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.386843][ T2005]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.386846][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386847][ T2005]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.386849][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386850][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386852][ T2005]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.386859][ T2005]  ? __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)
[   62.386862][ T2005]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.386864][ T2005]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.386868][ T2005]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.386869][ T2005]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.386874][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.386876][ T2005]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.386882][ T2005]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.386887][ T2005]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.386889][ T2005]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.386894][ T2005]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.386896][ T2005]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.386898][ T2005]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.386900][ T2005]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.386904][ T2005]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.386906][ T2005]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.386909][ T2005]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.386910][ T2005]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.386915][ T2005]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.386917][ T2005]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.386920][ T2005]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.386923][ T2005]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.386926][ T2005]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.386933][ T2005]  ? 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))
[   62.386935][ T2005]  ? 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))
[   62.386939][ T2005]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.386943][ T2005]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.386946][ T2005]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.386950][ T2005]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.386954][ T2005]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.386958][ T2005]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.386960][ T2005]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.386965][ T2005]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.386968][ T2005]  ____sys_sendmsg (net/socket.c:2713)
[   62.386970][ T2005]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.386972][ T2005]  ? sock_write_iter (net/socket.c:1269)
[   62.386974][ T2005]  ? move_addr_to_kernel (net/socket.c:258)
[   62.386982][ T2005]  ___sys_sendmsg (net/socket.c:2767)
[   62.386984][ T2005]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.387001][ T2005]  __sys_sendmsg (net/socket.c:2799)
[   62.387004][ T2005]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.387010][ T2005]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.387014][ T2005]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.387017][ T2005]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.387020][ T2005]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.387022][ T2005] RIP: 0033:0x7f5b358c654e
[   62.387026][ T2005] 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
[   62.387027][ T2005] RSP: 002b:00007fff1137ba40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.387030][ T2005] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5b358c654e
[   62.387031][ T2005] RDX: 0000000000000000 RSI: 00007fff1137baf0 RDI: 0000000000000005
[   62.387032][ T2005] RBP: 00007fff1137ba50 R08: 0000000000000000 R09: 0000000000000000
[   62.387033][ T2005] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195af
[   62.387034][ T2005] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff1137c1c0
| [   63.714965][ T2081] softirqs last disabled at (15918): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   63.714968][ T2081] Preemption disabled at:
| [   63.714968][ T2081] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.714976][ T2081] Tainted: [W]=WARN
[   63.714977][ T2081] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.714979][ T2081] Call Trace:
[   63.714980][ T2081]  <TASK>
[   63.714982][ T2081]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.714988][ T2081]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.714989][ T2081]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.714994][ T2081]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.714998][ T2081]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.715002][ T2081]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   63.715004][ T2081]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.715011][ T2081]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   63.715013][ T2081]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.715017][ T2081]  put_chars (drivers/char/virtio_console.c:1176)
[   63.715020][ T2081]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.715021][ T2081]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.715024][ T2081]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.715030][ T2081]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.715037][ T2081]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.715040][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715042][ T2081]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.715046][ T2081]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.715050][ T2081]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.715052][ T2081]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   63.715055][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715056][ T2081]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.715060][ T2081]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.715065][ T2081]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.715066][ T2081]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.715072][ T2081]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.715075][ T2081]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.715077][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715078][ T2081]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   63.715082][ T2081]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.715084][ T2081]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.715086][ T2081]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.715090][ T2081]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.715091][ T2081]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.715094][ T2081]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.715098][ T2081]  _printk (kernel/printk/printk.c:2504)
[   63.715101][ T2081]  ? snapshot_read.cold (user.c:?)
[   63.715105][ T2081]  ? br_multicast_flood (??:?)
[   63.715108][ T2081]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.715110][ T2081]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.715111][ T2081]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.715115][ T2081]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   63.715120][ T2081]  br_init_port (net/bridge/br_stp_if.c:39)
[   63.715122][ T2081]  new_nbp (net/bridge/br_if.c:449)
[   63.715126][ T2081]  br_add_if (net/bridge/br_if.c:592)
[   63.715128][ T2081]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   63.715132][ T2081]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   63.715137][ T2081]  do_set_master (net/core/rtnetlink.c:3071)
[   63.715141][ T2081]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.715144][ T2081]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.715148][ T2081]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.715149][ T2081]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.715152][ T2081]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.715155][ T2081]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.715157][ T2081]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.715159][ T2081]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.715161][ T2081]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.715164][ T2081]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.715165][ T2081]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.715166][ T2081]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.715168][ T2081]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.715170][ T2081]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.715173][ T2081]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.715177][ T2081]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.715179][ T2081]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.715182][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715183][ T2081]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.715185][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715186][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715188][ T2081]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.715190][ T2081]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   63.715193][ T2081]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.715195][ T2081]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.715198][ T2081]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.715199][ T2081]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.715204][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715206][ T2081]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.715211][ T2081]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.715216][ T2081]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.715218][ T2081]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.715223][ T2081]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.715225][ T2081]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.715227][ T2081]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.715229][ T2081]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.715232][ T2081]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.715234][ T2081]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.715237][ T2081]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.715239][ T2081]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.715243][ T2081]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.715245][ T2081]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.715249][ T2081]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.715252][ T2081]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.715255][ T2081]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.715261][ T2081]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   63.715263][ T2081]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   63.715270][ T2081]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.715274][ T2081]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.715277][ T2081]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.715281][ T2081]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.715285][ T2081]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.715288][ T2081]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.715290][ T2081]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.715295][ T2081]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.715298][ T2081]  ____sys_sendmsg (net/socket.c:2713)
[   63.715300][ T2081]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.715303][ T2081]  ? sock_write_iter (net/socket.c:1269)
[   63.715304][ T2081]  ? move_addr_to_kernel (net/socket.c:258)
[   63.715312][ T2081]  ___sys_sendmsg (net/socket.c:2767)
[   63.715314][ T2081]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.715330][ T2081]  __sys_sendmsg (net/socket.c:2799)
[   63.715333][ T2081]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.715339][ T2081]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.715342][ T2081]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.715345][ T2081]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.715347][ T2081]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.715349][ T2081] RIP: 0033:0x7f6f2067d54e
[   63.715353][ T2081] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   63.715355][ T2081] RSP: 002b:00007fff3ee5aac0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.715357][ T2081] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6f2067d54e
[   63.715359][ T2081] RDX: 0000000000000000 RSI: 00007fff3ee5ab70 RDI: 0000000000000005
[   63.715360][ T2081] RBP: 00007fff3ee5aad0 R08: 0000000000000000 R09: 0000000000000000
[   63.715360][ T2081] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195b0
[   63.715361][ T2081] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3ee5b240
| [   65.030674][ T2154] softirqs last disabled at (18366): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   65.030676][ T2154] Preemption disabled at:
| [   65.030677][ T2154] vprintk_emit (kernel/printk/printk.c:2471)
| [   65.030685][ T2154] Tainted: [W]=WARN
[   65.030686][ T2154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.030688][ T2154] Call Trace:
[   65.030689][ T2154]  <TASK>
[   65.030691][ T2154]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.030697][ T2154]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   65.030699][ T2154]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.030703][ T2154]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.030707][ T2154]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   65.030712][ T2154]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   65.030713][ T2154]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.030720][ T2154]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   65.030723][ T2154]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.030726][ T2154]  put_chars (drivers/char/virtio_console.c:1176)
[   65.030728][ T2154]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.030730][ T2154]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.030733][ T2154]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.030743][ T2154]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.030750][ T2154]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.030753][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030754][ T2154]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.030758][ T2154]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.030762][ T2154]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.030764][ T2154]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   65.030767][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030768][ T2154]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.030772][ T2154]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.030776][ T2154]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.030778][ T2154]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.030783][ T2154]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.030786][ T2154]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.030788][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030789][ T2154]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   65.030793][ T2154]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.030795][ T2154]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.030797][ T2154]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.030800][ T2154]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.030802][ T2154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.030805][ T2154]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   65.030808][ T2154]  _printk (kernel/printk/printk.c:2504)
[   65.030811][ T2154]  ? snapshot_read.cold (user.c:?)
[   65.030815][ T2154]  ? br_multicast_flood (??:?)
[   65.030818][ T2154]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   65.030819][ T2154]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.030821][ T2154]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.030825][ T2154]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   65.030829][ T2154]  br_init_port (net/bridge/br_stp_if.c:39)
[   65.030831][ T2154]  new_nbp (net/bridge/br_if.c:449)
[   65.030834][ T2154]  br_add_if (net/bridge/br_if.c:592)
[   65.030837][ T2154]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   65.030841][ T2154]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   65.030846][ T2154]  do_set_master (net/core/rtnetlink.c:3071)
[   65.030849][ T2154]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   65.030852][ T2154]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   65.030856][ T2154]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   65.030857][ T2154]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   65.030859][ T2154]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   65.030863][ T2154]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.030865][ T2154]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.030872][ T2154]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.030874][ T2154]  ? kasan_save_stack (mm/kasan/common.c:58)
[   65.030877][ T2154]  ? kasan_save_stack (mm/kasan/common.c:57)
[   65.030878][ T2154]  ? kasan_save_track (mm/kasan/common.c:78)
[   65.030879][ T2154]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   65.030881][ T2154]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.030883][ T2154]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   65.030886][ T2154]  ? ___sys_sendmsg (net/socket.c:2758)
[   65.030890][ T2154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.030891][ T2154]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.030894][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030896][ T2154]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.030897][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030898][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030900][ T2154]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   65.030902][ T2154]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   65.030904][ T2154]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   65.030906][ T2154]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.030909][ T2154]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   65.030910][ T2154]  ? nla_get_range_signed (lib/nlattr.c:270)
[   65.030915][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.030917][ T2154]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   65.030922][ T2154]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.030927][ T2154]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.030929][ T2154]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.030933][ T2154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.030935][ T2154]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.030937][ T2154]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.030939][ T2154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.030942][ T2154]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.030944][ T2154]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.030947][ T2154]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.030948][ T2154]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.030953][ T2154]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.030954][ T2154]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.030958][ T2154]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   65.030961][ T2154]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.030964][ T2154]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   65.030970][ T2154]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   65.030972][ T2154]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   65.030976][ T2154]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   65.030980][ T2154]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   65.030982][ T2154]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.030986][ T2154]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   65.030990][ T2154]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   65.030993][ T2154]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.030995][ T2154]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   65.031000][ T2154]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   65.031003][ T2154]  ____sys_sendmsg (net/socket.c:2713)
[   65.031005][ T2154]  ? copy_msghdr_from_user (net/socket.c:2650)
[   65.031007][ T2154]  ? sock_write_iter (net/socket.c:1269)
[   65.031009][ T2154]  ? move_addr_to_kernel (net/socket.c:258)
[   65.031016][ T2154]  ___sys_sendmsg (net/socket.c:2767)
[   65.031019][ T2154]  ? copy_msghdr_from_user (net/socket.c:2619)
[   65.031034][ T2154]  __sys_sendmsg (net/socket.c:2799)
[   65.031037][ T2154]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   65.031043][ T2154]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.031045][ T2154]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   65.031048][ T2154]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   65.031051][ T2154]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   65.031053][ T2154] RIP: 0033:0x7f0684e7254e
[   65.031057][ T2154] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   65.031058][ T2154] RSP: 002b:00007ffe91d15d90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   65.031061][ T2154] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0684e7254e
[   65.031062][ T2154] RDX: 0000000000000000 RSI: 00007ffe91d15e40 RDI: 0000000000000005
[   65.031063][ T2154] RBP: 00007ffe91d15da0 R08: 0000000000000000 R09: 0000000000000000
[   65.031064][ T2154] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195b2
[   65.031065][ T2154] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe91d16510
| [   66.365047][   T69] softirqs last disabled at (720360): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   66.365049][   T69] Preemption disabled at:
| [   66.365050][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.365058][   T69] Tainted: [W]=WARN
[   66.365059][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.365061][   T69] Workqueue: netns cleanup_net
[   66.365064][   T69] Call Trace:
[   66.365065][   T69]  <TASK>
[   66.365067][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.365073][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.365075][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.365079][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.365083][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.365088][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.365089][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.365096][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.365098][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.365102][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   66.365105][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.365106][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.365109][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.365112][   T69]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.365118][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.365121][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.365127][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.365130][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.365134][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.365138][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.365140][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   66.365143][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.365145][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.365149][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.365153][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.365155][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.365160][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.365163][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.365165][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.365167][   T69]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   66.365170][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.365172][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.365175][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.365178][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.365179][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   66.365181][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   66.365183][   T69]  ? kthread (kernel/kthread.c:436)
[   66.365185][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   66.365188][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   66.365193][   T69]  _printk (kernel/printk/printk.c:2504)
[   66.365196][   T69]  ? snapshot_read.cold (user.c:?)
[   66.365201][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.365204][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.365209][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.365211][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   66.365216][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.365217][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   66.365220][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   66.365222][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   66.365224][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   66.365228][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   66.365232][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   66.365238][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   66.365241][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   66.365245][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   66.365248][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   66.365252][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   66.365253][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.365257][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   66.365261][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   66.365264][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   66.365268][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.365270][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.365273][   T69]  process_one_work (kernel/workqueue.c:3387)
[   66.365280][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   66.365282][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.365290][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   66.365294][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.365296][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   66.365299][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.365302][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   66.365304][   T69]  kthread (kernel/kthread.c:436)
[   66.365306][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   66.365309][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   66.365311][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   66.365314][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   66.365317][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   66.365321][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   66.365324][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.875619][ T2296] softirqs last disabled at (15226): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   67.875622][ T2296] Preemption disabled at:
| [   67.875623][ T2296] vprintk_emit (kernel/printk/printk.c:2471)
| [   67.875631][ T2296] Tainted: [W]=WARN
[   67.875632][ T2296] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.875633][ T2296] Call Trace:
[   67.875635][ T2296]  <TASK>
[   67.875636][ T2296]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.875642][ T2296]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   67.875645][ T2296]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.875649][ T2296]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.875653][ T2296]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   67.875658][ T2296]  __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))
[   67.875660][ T2296]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.875666][ T2296]  ? 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)
[   67.875669][ T2296]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.875672][ T2296]  put_chars (drivers/char/virtio_console.c:1176)
[   67.875675][ T2296]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.875681][ T2296]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.875688][ T2296]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.875692][ T2296]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.875696][ T2296]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.875700][ T2296]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.875702][ T2296]  ? 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))
[   67.875705][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.875708][ T2296]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.875712][ T2296]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.875716][ T2296]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.875718][ T2296]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.875723][ T2296]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.875726][ T2296]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.875728][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.875729][ T2296]  ? 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)
[   67.875733][ T2296]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.875735][ T2296]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.875738][ T2296]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.875743][ T2296]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.875745][ T2296]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.875747][ T2296]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   67.875749][ T2296]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   67.875753][ T2296]  _printk (kernel/printk/printk.c:2504)
[   67.875756][ T2296]  ? snapshot_read.cold (user.c:?)
[   67.875758][ T2296]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.875761][ T2296]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.875763][ T2296]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.875766][ T2296]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   67.875769][ T2296]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   67.875772][ T2296]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.875774][ T2296]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   67.875777][ T2296]  ? netdev_notice (net/core/dev.c:13194)
[   67.875780][ T2296]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.875782][ T2296]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.875785][ T2296]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   67.875788][ T2296]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.875790][ T2296]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   67.875793][ T2296]  ? 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))
[   67.875798][ T2296]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   67.875800][ T2296]  ? __kernel_text_address (kernel/extable.c:79)
[   67.875803][ T2296]  ? write_profile (profile.c:?)
[   67.875807][ T2296]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   67.875812][ T2296]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.875816][ T2296]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   67.875818][ T2296]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   67.875819][ T2296]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   67.875821][ T2296]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.875824][ T2296]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.875826][ T2296]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.875828][ T2296]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.875830][ T2296]  ? kasan_save_stack (mm/kasan/common.c:58)
[   67.875832][ T2296]  ? kasan_save_stack (mm/kasan/common.c:57)
[   67.875833][ T2296]  ? kasan_save_track (mm/kasan/common.c:78)
[   67.875835][ T2296]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   67.875837][ T2296]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.875839][ T2296]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   67.875842][ T2296]  ? ___sys_sendmsg (net/socket.c:2758)
[   67.875845][ T2296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.875847][ T2296]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.875850][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.875852][ T2296]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.875853][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.875854][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.875856][ T2296]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   67.875858][ T2296]  ? __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)
[   67.875861][ T2296]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   67.875863][ T2296]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.875866][ T2296]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   67.875867][ T2296]  ? nla_get_range_signed (lib/nlattr.c:270)
[   67.875872][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.875875][ T2296]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   67.875884][ T2296]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.875889][ T2296]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.875891][ T2296]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.875896][ T2296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.875898][ T2296]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.875899][ T2296]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.875901][ T2296]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.875905][ T2296]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.875907][ T2296]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.875910][ T2296]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.875911][ T2296]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.875916][ T2296]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.875918][ T2296]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.875921][ T2296]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   67.875924][ T2296]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.875927][ T2296]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.875933][ T2296]  ? 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))
[   67.875935][ T2296]  ? 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))
[   67.875939][ T2296]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.875943][ T2296]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.875946][ T2296]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.875950][ T2296]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   67.875954][ T2296]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   67.875958][ T2296]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.875959][ T2296]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   67.875965][ T2296]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   67.875967][ T2296]  ____sys_sendmsg (net/socket.c:2713)
[   67.875970][ T2296]  ? copy_msghdr_from_user (net/socket.c:2650)
[   67.875972][ T2296]  ? sock_write_iter (net/socket.c:1269)
[   67.875973][ T2296]  ? move_addr_to_kernel (net/socket.c:258)
[   67.875981][ T2296]  ___sys_sendmsg (net/socket.c:2767)
[   67.875984][ T2296]  ? copy_msghdr_from_user (net/socket.c:2619)
[   67.875999][ T2296]  __sys_sendmsg (net/socket.c:2799)
[   67.876002][ T2296]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   67.876008][ T2296]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.876011][ T2296]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   67.876014][ T2296]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   67.876017][ T2296]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.876019][ T2296] RIP: 0033:0x7f8381f4154e
[   67.876023][ T2296] 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
[   67.876024][ T2296] RSP: 002b:00007ffe62517590 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.876027][ T2296] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8381f4154e
[   67.876028][ T2296] RDX: 0000000000000000 RSI: 00007ffe62517640 RDI: 0000000000000005
[   67.876029][ T2296] RBP: 00007ffe625175a0 R08: 0000000000000000 R09: 0000000000000000
[   67.876030][ T2296] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195b5
[   67.876031][ T2296] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe62517d10
| [   79.713731][ T2596] softirqs last disabled at (17838): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   79.713733][ T2596] Preemption disabled at:
| [   79.713733][ T2596] vprintk_emit (kernel/printk/printk.c:2471)
| [   79.713746][ T2596] Tainted: [W]=WARN
[   79.713747][ T2596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   79.713748][ T2596] Call Trace:
[   79.713750][ T2596]  <TASK>
[   79.713751][ T2596]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   79.713757][ T2596]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   79.713759][ T2596]  __might_resched.cold (kernel/sched/core.c:9234)
[   79.713763][ T2596]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   79.713768][ T2596]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   79.713772][ T2596]  __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))
[   79.713774][ T2596]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   79.713780][ T2596]  ? 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)
[   79.713783][ T2596]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   79.713787][ T2596]  put_chars (drivers/char/virtio_console.c:1176)
[   79.713789][ T2596]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   79.713790][ T2596]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   79.713794][ T2596]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   79.713799][ T2596]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   79.713807][ T2596]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   79.713809][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713811][ T2596]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.713815][ T2596]  console_emit_next_record (kernel/printk/printk.c:3183)
[   79.713820][ T2596]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   79.713821][ T2596]  ? 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))
[   79.713825][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713826][ T2596]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.713830][ T2596]  console_flush_one_record (kernel/printk/printk.c:3268)
[   79.713834][ T2596]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   79.713836][ T2596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.713842][ T2596]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   79.713844][ T2596]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   79.713846][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713848][ T2596]  ? 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)
[   79.713851][ T2596]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   79.713853][ T2596]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   79.713856][ T2596]  vprintk_emit (kernel/printk/printk.c:2479)
[   79.713859][ T2596]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   79.713861][ T2596]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   79.713864][ T2596]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   79.713867][ T2596]  _printk (kernel/printk/printk.c:2504)
[   79.713871][ T2596]  ? snapshot_read.cold (user.c:?)
[   79.713875][ T2596]  ? br_multicast_flood (??:?)
[   79.713878][ T2596]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   79.713880][ T2596]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   79.713881][ T2596]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.713885][ T2596]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   79.713889][ T2596]  br_init_port (net/bridge/br_stp_if.c:39)
[   79.713892][ T2596]  new_nbp (net/bridge/br_if.c:449)
[   79.713896][ T2596]  br_add_if (net/bridge/br_if.c:592)
[   79.713898][ T2596]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   79.713902][ T2596]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   79.713907][ T2596]  do_set_master (net/core/rtnetlink.c:3071)
[   79.713911][ T2596]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   79.713914][ T2596]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   79.713917][ T2596]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   79.713919][ T2596]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   79.713921][ T2596]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   79.713931][ T2596]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   79.713933][ T2596]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   79.713935][ T2596]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   79.713937][ T2596]  ? kasan_save_stack (mm/kasan/common.c:58)
[   79.713939][ T2596]  ? kasan_save_stack (mm/kasan/common.c:57)
[   79.713941][ T2596]  ? kasan_save_track (mm/kasan/common.c:78)
[   79.713942][ T2596]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   79.713944][ T2596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.713946][ T2596]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   79.713949][ T2596]  ? ___sys_sendmsg (net/socket.c:2758)
[   79.713953][ T2596]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   79.713955][ T2596]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   79.713957][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713959][ T2596]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.713960][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713961][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713963][ T2596]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   79.713965][ T2596]  ? __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)
[   79.713968][ T2596]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   79.713970][ T2596]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   79.713973][ T2596]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   79.713974][ T2596]  ? nla_get_range_signed (lib/nlattr.c:270)
[   79.713979][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.713981][ T2596]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   79.713986][ T2596]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   79.713992][ T2596]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.713993][ T2596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.713998][ T2596]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   79.714000][ T2596]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   79.714002][ T2596]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.714004][ T2596]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   79.714007][ T2596]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.714009][ T2596]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.714012][ T2596]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   79.714014][ T2596]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.714018][ T2596]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   79.714020][ T2596]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   79.714023][ T2596]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   79.714026][ T2596]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   79.714029][ T2596]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   79.714035][ T2596]  ? 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))
[   79.714037][ T2596]  ? 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))
[   79.714042][ T2596]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   79.714046][ T2596]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   79.714048][ T2596]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   79.714052][ T2596]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   79.714056][ T2596]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   79.714060][ T2596]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   79.714062][ T2596]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   79.714067][ T2596]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   79.714070][ T2596]  ____sys_sendmsg (net/socket.c:2713)
[   79.714072][ T2596]  ? copy_msghdr_from_user (net/socket.c:2650)
[   79.714074][ T2596]  ? sock_write_iter (net/socket.c:1269)
[   79.714076][ T2596]  ? move_addr_to_kernel (net/socket.c:258)
[   79.714083][ T2596]  ___sys_sendmsg (net/socket.c:2767)
[   79.714086][ T2596]  ? copy_msghdr_from_user (net/socket.c:2619)
[   79.714101][ T2596]  __sys_sendmsg (net/socket.c:2799)
[   79.714104][ T2596]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   79.714111][ T2596]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.714114][ T2596]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   79.714116][ T2596]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   79.714119][ T2596]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   79.714121][ T2596] RIP: 0033:0x7f915a8b454e
[   79.714125][ T2596] 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
[   79.714127][ T2596] RSP: 002b:00007ffd62f571d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   79.714129][ T2596] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f915a8b454e
[   79.714131][ T2596] RDX: 0000000000000000 RSI: 00007ffd62f57280 RDI: 0000000000000005
[   79.714131][ T2596] RBP: 00007ffd62f571e0 R08: 0000000000000000 R09: 0000000000000000
[   79.714132][ T2596] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195c0
[   79.714133][ T2596] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd62f57950
| [   81.093616][ T2680] softirqs last disabled at (21500): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   81.093619][ T2680] Preemption disabled at:
| [   81.093619][ T2680] vprintk_emit (kernel/printk/printk.c:2471)
| [   81.093628][ T2680] Tainted: [W]=WARN
[   81.093628][ T2680] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.093630][ T2680] Call Trace:
[   81.093631][ T2680]  <TASK>
[   81.093633][ T2680]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   81.093639][ T2680]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   81.093641][ T2680]  __might_resched.cold (kernel/sched/core.c:9234)
[   81.093645][ T2680]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   81.093649][ T2680]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   81.093653][ T2680]  __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))
[   81.093655][ T2680]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   81.093662][ T2680]  ? 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)
[   81.093664][ T2680]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   81.093668][ T2680]  put_chars (drivers/char/virtio_console.c:1176)
[   81.093670][ T2680]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   81.093671][ T2680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   81.093675][ T2680]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   81.093680][ T2680]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   81.093688][ T2680]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   81.093691][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093692][ T2680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.093696][ T2680]  console_emit_next_record (kernel/printk/printk.c:3183)
[   81.093700][ T2680]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   81.093702][ T2680]  ? 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))
[   81.093705][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093707][ T2680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.093711][ T2680]  console_flush_one_record (kernel/printk/printk.c:3268)
[   81.093715][ T2680]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   81.093717][ T2680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.093722][ T2680]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   81.093725][ T2680]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   81.093727][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093729][ T2680]  ? 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)
[   81.093732][ T2680]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   81.093734][ T2680]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   81.093737][ T2680]  vprintk_emit (kernel/printk/printk.c:2479)
[   81.093742][ T2680]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   81.093744][ T2680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.093747][ T2680]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   81.093750][ T2680]  _printk (kernel/printk/printk.c:2504)
[   81.093754][ T2680]  ? snapshot_read.cold (user.c:?)
[   81.093757][ T2680]  ? br_multicast_flood (??:?)
[   81.093761][ T2680]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   81.093762][ T2680]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   81.093763][ T2680]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   81.093768][ T2680]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   81.093772][ T2680]  br_init_port (net/bridge/br_stp_if.c:39)
[   81.093774][ T2680]  new_nbp (net/bridge/br_if.c:449)
[   81.093778][ T2680]  br_add_if (net/bridge/br_if.c:592)
[   81.093780][ T2680]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   81.093784][ T2680]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   81.093789][ T2680]  do_set_master (net/core/rtnetlink.c:3071)
[   81.093793][ T2680]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   81.093796][ T2680]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   81.093800][ T2680]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   81.093801][ T2680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   81.093804][ T2680]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   81.093807][ T2680]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   81.093809][ T2680]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   81.093811][ T2680]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   81.093813][ T2680]  ? kasan_save_stack (mm/kasan/common.c:58)
[   81.093815][ T2680]  ? kasan_save_stack (mm/kasan/common.c:57)
[   81.093817][ T2680]  ? kasan_save_track (mm/kasan/common.c:78)
[   81.093818][ T2680]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   81.093820][ T2680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.093822][ T2680]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   81.093825][ T2680]  ? ___sys_sendmsg (net/socket.c:2758)
[   81.093828][ T2680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.093830][ T2680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   81.093833][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093834][ T2680]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.093836][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093837][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093839][ T2680]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   81.093841][ T2680]  ? __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)
[   81.093844][ T2680]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   81.093845][ T2680]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   81.093849][ T2680]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   81.093850][ T2680]  ? nla_get_range_signed (lib/nlattr.c:270)
[   81.093855][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093857][ T2680]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   81.093862][ T2680]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   81.093867][ T2680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   81.093869][ T2680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.093874][ T2680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.093876][ T2680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.093878][ T2680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   81.093880][ T2680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.093884][ T2680]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   81.093886][ T2680]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   81.093889][ T2680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   81.093890][ T2680]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.093894][ T2680]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.093896][ T2680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.093900][ T2680]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   81.093903][ T2680]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   81.093906][ T2680]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   81.093913][ T2680]  ? 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))
[   81.093914][ T2680]  ? 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))
[   81.093919][ T2680]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   81.093923][ T2680]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   81.093925][ T2680]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.093934][ T2680]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   81.093938][ T2680]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   81.093942][ T2680]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.093944][ T2680]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   81.093949][ T2680]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   81.093952][ T2680]  ____sys_sendmsg (net/socket.c:2713)
[   81.093954][ T2680]  ? copy_msghdr_from_user (net/socket.c:2650)
[   81.093956][ T2680]  ? sock_write_iter (net/socket.c:1269)
[   81.093958][ T2680]  ? move_addr_to_kernel (net/socket.c:258)
[   81.093965][ T2680]  ___sys_sendmsg (net/socket.c:2767)
[   81.093968][ T2680]  ? copy_msghdr_from_user (net/socket.c:2619)
[   81.093984][ T2680]  __sys_sendmsg (net/socket.c:2799)
[   81.093987][ T2680]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   81.093993][ T2680]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.093996][ T2680]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   81.093999][ T2680]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   81.094002][ T2680]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   81.094004][ T2680] RIP: 0033:0x7f0200c2c54e
[   81.094008][ T2680] 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
[   81.094009][ T2680] RSP: 002b:00007ffcb22874b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   81.094012][ T2680] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0200c2c54e
[   81.094013][ T2680] RDX: 0000000000000000 RSI: 00007ffcb2287560 RDI: 0000000000000005
[   81.094014][ T2680] RBP: 00007ffcb22874c0 R08: 0000000000000000 R09: 0000000000000000
[   81.094015][ T2680] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195c2
[   81.094016][ T2680] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcb2287c30
| [   82.384569][ T2748] softirqs last disabled at (19340): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   82.384572][ T2748] Preemption disabled at:
| [   82.384572][ T2748] vprintk_emit (kernel/printk/printk.c:2471)
| [   82.384580][ T2748] Tainted: [W]=WARN
[   82.384581][ T2748] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.384583][ T2748] Call Trace:
[   82.384584][ T2748]  <TASK>
[   82.384586][ T2748]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   82.384592][ T2748]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   82.384594][ T2748]  __might_resched.cold (kernel/sched/core.c:9234)
[   82.384598][ T2748]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   82.384602][ T2748]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   82.384607][ T2748]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   82.384609][ T2748]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.384615][ T2748]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   82.384618][ T2748]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.384622][ T2748]  put_chars (drivers/char/virtio_console.c:1176)
[   82.384624][ T2748]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   82.384625][ T2748]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.384629][ T2748]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.384634][ T2748]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   82.384642][ T2748]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   82.384645][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384647][ T2748]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.384651][ T2748]  console_emit_next_record (kernel/printk/printk.c:3183)
[   82.384655][ T2748]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   82.384657][ T2748]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   82.384660][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384662][ T2748]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.384666][ T2748]  console_flush_one_record (kernel/printk/printk.c:3268)
[   82.384670][ T2748]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   82.384672][ T2748]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.384678][ T2748]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   82.384680][ T2748]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   82.384682][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384684][ T2748]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   82.384688][ T2748]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   82.384689][ T2748]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   82.384692][ T2748]  vprintk_emit (kernel/printk/printk.c:2479)
[   82.384695][ T2748]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   82.384697][ T2748]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.384700][ T2748]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   82.384704][ T2748]  _printk (kernel/printk/printk.c:2504)
[   82.384707][ T2748]  ? snapshot_read.cold (user.c:?)
[   82.384711][ T2748]  ? br_multicast_flood (??:?)
[   82.384714][ T2748]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   82.384716][ T2748]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.384717][ T2748]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   82.384721][ T2748]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   82.384726][ T2748]  br_init_port (net/bridge/br_stp_if.c:39)
[   82.384728][ T2748]  new_nbp (net/bridge/br_if.c:449)
[   82.384732][ T2748]  br_add_if (net/bridge/br_if.c:592)
[   82.384734][ T2748]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   82.384738][ T2748]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   82.384746][ T2748]  do_set_master (net/core/rtnetlink.c:3071)
[   82.384750][ T2748]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   82.384753][ T2748]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   82.384756][ T2748]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   82.384758][ T2748]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   82.384760][ T2748]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   82.384764][ T2748]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.384766][ T2748]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.384768][ T2748]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.384770][ T2748]  ? kasan_save_stack (mm/kasan/common.c:58)
[   82.384773][ T2748]  ? kasan_save_stack (mm/kasan/common.c:57)
[   82.384774][ T2748]  ? kasan_save_track (mm/kasan/common.c:78)
[   82.384775][ T2748]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   82.384777][ T2748]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.384779][ T2748]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   82.384782][ T2748]  ? ___sys_sendmsg (net/socket.c:2758)
[   82.384786][ T2748]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.384788][ T2748]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.384791][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384792][ T2748]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.384794][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384795][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384797][ T2748]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   82.384799][ T2748]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   82.384802][ T2748]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   82.384804][ T2748]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.384807][ T2748]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   82.384808][ T2748]  ? nla_get_range_signed (lib/nlattr.c:270)
[   82.384813][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384815][ T2748]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   82.384821][ T2748]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.384826][ T2748]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.384828][ T2748]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.384833][ T2748]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.384835][ T2748]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.384837][ T2748]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.384839][ T2748]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.384843][ T2748]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.384845][ T2748]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   82.384848][ T2748]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.384849][ T2748]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.384854][ T2748]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.384856][ T2748]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.384859][ T2748]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   82.384862][ T2748]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.384865][ T2748]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   82.384872][ T2748]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   82.384874][ T2748]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   82.384878][ T2748]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   82.384882][ T2748]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   82.384885][ T2748]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.384889][ T2748]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   82.384893][ T2748]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   82.384897][ T2748]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.384899][ T2748]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   82.384904][ T2748]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   82.384907][ T2748]  ____sys_sendmsg (net/socket.c:2713)
[   82.384909][ T2748]  ? copy_msghdr_from_user (net/socket.c:2650)
[   82.384912][ T2748]  ? sock_write_iter (net/socket.c:1269)
[   82.384913][ T2748]  ? move_addr_to_kernel (net/socket.c:258)
[   82.384921][ T2748]  ___sys_sendmsg (net/socket.c:2767)
[   82.384924][ T2748]  ? copy_msghdr_from_user (net/socket.c:2619)
[   82.384944][ T2748]  __sys_sendmsg (net/socket.c:2799)
[   82.384947][ T2748]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   82.384954][ T2748]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.384957][ T2748]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   82.384960][ T2748]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   82.384963][ T2748]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.384965][ T2748] RIP: 0033:0x7fc330e0054e
[   82.384969][ T2748] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   82.384970][ T2748] RSP: 002b:00007ffcbaf37650 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   82.384973][ T2748] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc330e0054e
[   82.384974][ T2748] RDX: 0000000000000000 RSI: 00007ffcbaf37700 RDI: 0000000000000005
[   82.384975][ T2748] RBP: 00007ffcbaf37660 R08: 0000000000000000 R09: 0000000000000000
[   82.384976][ T2748] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195c3
[   82.384977][ T2748] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcbaf37dd0
| [   83.726902][ T2822] softirqs last disabled at (21670): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   83.726905][ T2822] Preemption disabled at:
| [   83.726905][ T2822] vprintk_emit (kernel/printk/printk.c:2471)
| [   83.726914][ T2822] Tainted: [W]=WARN
[   83.726914][ T2822] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   83.726916][ T2822] Call Trace:
[   83.726917][ T2822]  <TASK>
[   83.726919][ T2822]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   83.726925][ T2822]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   83.726926][ T2822]  __might_resched.cold (kernel/sched/core.c:9234)
[   83.726931][ T2822]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   83.726935][ T2822]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   83.726944][ T2822]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   83.726946][ T2822]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.726952][ T2822]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   83.726955][ T2822]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.726958][ T2822]  put_chars (drivers/char/virtio_console.c:1176)
[   83.726961][ T2822]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   83.726962][ T2822]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.726965][ T2822]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.726971][ T2822]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   83.726978][ T2822]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   83.726981][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.726983][ T2822]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.726987][ T2822]  console_emit_next_record (kernel/printk/printk.c:3183)
[   83.726990][ T2822]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   83.726992][ T2822]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   83.726995][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.726997][ T2822]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.727001][ T2822]  console_flush_one_record (kernel/printk/printk.c:3268)
[   83.727005][ T2822]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   83.727007][ T2822]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.727012][ T2822]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   83.727015][ T2822]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   83.727017][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.727019][ T2822]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   83.727022][ T2822]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   83.727024][ T2822]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   83.727027][ T2822]  vprintk_emit (kernel/printk/printk.c:2479)
[   83.727030][ T2822]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   83.727031][ T2822]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.727034][ T2822]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   83.727038][ T2822]  _printk (kernel/printk/printk.c:2504)
[   83.727041][ T2822]  ? snapshot_read.cold (user.c:?)
[   83.727045][ T2822]  ? br_multicast_flood (??:?)
[   83.727048][ T2822]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   83.727050][ T2822]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.727051][ T2822]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.727055][ T2822]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   83.727059][ T2822]  br_init_port (net/bridge/br_stp_if.c:39)
[   83.727061][ T2822]  new_nbp (net/bridge/br_if.c:449)
[   83.727065][ T2822]  br_add_if (net/bridge/br_if.c:592)
[   83.727067][ T2822]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   83.727071][ T2822]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   83.727077][ T2822]  do_set_master (net/core/rtnetlink.c:3071)
[   83.727080][ T2822]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   83.727084][ T2822]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   83.727087][ T2822]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   83.727089][ T2822]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   83.727091][ T2822]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   83.727095][ T2822]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.727097][ T2822]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.727098][ T2822]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.727101][ T2822]  ? kasan_save_stack (mm/kasan/common.c:58)
[   83.727103][ T2822]  ? kasan_save_stack (mm/kasan/common.c:57)
[   83.727104][ T2822]  ? kasan_save_track (mm/kasan/common.c:78)
[   83.727105][ T2822]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   83.727108][ T2822]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.727110][ T2822]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   83.727112][ T2822]  ? ___sys_sendmsg (net/socket.c:2758)
[   83.727116][ T2822]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.727118][ T2822]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.727121][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.727122][ T2822]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.727124][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.727125][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.727126][ T2822]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   83.727129][ T2822]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   83.727131][ T2822]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   83.727133][ T2822]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.727137][ T2822]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   83.727138][ T2822]  ? nla_get_range_signed (lib/nlattr.c:270)
[   83.727143][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.727145][ T2822]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   83.727150][ T2822]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.727155][ T2822]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.727157][ T2822]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.727161][ T2822]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.727163][ T2822]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.727165][ T2822]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.727167][ T2822]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.727171][ T2822]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.727173][ T2822]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.727176][ T2822]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.727177][ T2822]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.727181][ T2822]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.727183][ T2822]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.727187][ T2822]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   83.727190][ T2822]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.727193][ T2822]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   83.727199][ T2822]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   83.727200][ T2822]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   83.727205][ T2822]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   83.727209][ T2822]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   83.727211][ T2822]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.727216][ T2822]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   83.727219][ T2822]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   83.727223][ T2822]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.727225][ T2822]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   83.727230][ T2822]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   83.727233][ T2822]  ____sys_sendmsg (net/socket.c:2713)
[   83.727235][ T2822]  ? copy_msghdr_from_user (net/socket.c:2650)
[   83.727237][ T2822]  ? sock_write_iter (net/socket.c:1269)
[   83.727239][ T2822]  ? move_addr_to_kernel (net/socket.c:258)
[   83.727246][ T2822]  ___sys_sendmsg (net/socket.c:2767)
[   83.727249][ T2822]  ? copy_msghdr_from_user (net/socket.c:2619)
[   83.727264][ T2822]  __sys_sendmsg (net/socket.c:2799)
[   83.727267][ T2822]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   83.727273][ T2822]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.727276][ T2822]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   83.727279][ T2822]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   83.727282][ T2822]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   83.727284][ T2822] RIP: 0033:0x7f1b7b41654e
[   83.727288][ T2822] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   83.727289][ T2822] RSP: 002b:00007ffd4d13d420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   83.727292][ T2822] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1b7b41654e
[   83.727293][ T2822] RDX: 0000000000000000 RSI: 00007ffd4d13d4d0 RDI: 0000000000000005
[   83.727294][ T2822] RBP: 00007ffd4d13d430 R08: 0000000000000000 R09: 0000000000000000
[   83.727295][ T2822] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195c4
[   83.727296][ T2822] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4d13dba0
| [   85.045733][   T69] softirqs last disabled at (1083754): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   85.045735][   T69] Preemption disabled at:
| [   85.045735][   T69] vprintk_emit (kernel/printk/printk.c:2471)
| [   85.045747][   T69] Tainted: [W]=WARN
[   85.045748][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   85.045749][   T69] Workqueue: netns cleanup_net
[   85.045753][   T69] Call Trace:
[   85.045754][   T69]  <TASK>
[   85.045756][   T69]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   85.045762][   T69]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   85.045764][   T69]  __might_resched.cold (kernel/sched/core.c:9234)
[   85.045769][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   85.045773][   T69]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   85.045777][   T69]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   85.045779][   T69]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   85.045786][   T69]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   85.045788][   T69]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   85.045792][   T69]  put_chars (drivers/char/virtio_console.c:1176)
[   85.045795][   T69]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   85.045796][   T69]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   85.045799][   T69]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   85.045802][   T69]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   85.045808][   T69]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   85.045812][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.045817][   T69]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   85.045821][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.045825][   T69]  console_emit_next_record (kernel/printk/printk.c:3183)
[   85.045830][   T69]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   85.045832][   T69]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   85.045835][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.045837][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.045841][   T69]  console_flush_one_record (kernel/printk/printk.c:3268)
[   85.045845][   T69]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   85.045847][   T69]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   85.045853][   T69]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   85.045856][   T69]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   85.045858][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.045860][   T69]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   85.045864][   T69]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   85.045865][   T69]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   85.045868][   T69]  vprintk_emit (kernel/printk/printk.c:2479)
[   85.045872][   T69]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   85.045873][   T69]  ? cleanup_net (net/core/net_namespace.c:706)
[   85.045875][   T69]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   85.045877][   T69]  ? kthread (kernel/kthread.c:436)
[   85.045879][   T69]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   85.045882][   T69]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   85.045887][   T69]  _printk (kernel/printk/printk.c:2504)
[   85.045891][   T69]  ? snapshot_read.cold (user.c:?)
[   85.045895][   T69]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   85.045899][   T69]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   85.045903][   T69]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   85.045906][   T69]  ? netdev_notice (net/core/dev.c:13194)
[   85.045911][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.045913][   T69]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   85.045915][   T69]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   85.045918][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   85.045920][   T69]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   85.045924][   T69]  dev_set_allmulti (net/core/dev_api.c:315)
[   85.045928][   T69]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   85.045935][   T69]  br_dev_delete (net/bridge/br_if.c:387)
[   85.045938][   T69]  br_net_exit_rtnl (net/bridge/br.c:414)
[   85.045942][   T69]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   85.045952][   T69]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   85.045956][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   85.045957][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   85.045961][   T69]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   85.045966][   T69]  cleanup_net (net/core/net_namespace.c:706)
[   85.045969][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   85.045973][   T69]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   85.045975][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   85.045978][   T69]  process_one_work (kernel/workqueue.c:3387)
[   85.045985][   T69]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   85.045988][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   85.045996][   T69]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   85.046001][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   85.046003][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   85.046006][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   85.046009][   T69]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   85.046011][   T69]  kthread (kernel/kthread.c:436)
[   85.046013][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   85.046016][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   85.046019][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   85.046022][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   85.046026][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   85.046029][   T69]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   85.046032][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   86.495550][ T2961] softirqs last disabled at (22148): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   86.495552][ T2961] Preemption disabled at:
| [   86.495553][ T2961] vprintk_emit (kernel/printk/printk.c:2471)
| [   86.495562][ T2961] Tainted: [W]=WARN
[   86.495563][ T2961] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   86.495564][ T2961] Call Trace:
[   86.495565][ T2961]  <TASK>
[   86.495567][ T2961]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   86.495573][ T2961]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   86.495574][ T2961]  __might_resched.cold (kernel/sched/core.c:9234)
[   86.495579][ T2961]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   86.495583][ T2961]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   86.495587][ T2961]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   86.495589][ T2961]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   86.495595][ T2961]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   86.495598][ T2961]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   86.495602][ T2961]  put_chars (drivers/char/virtio_console.c:1176)
[   86.495604][ T2961]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   86.495610][ T2961]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   86.495617][ T2961]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   86.495620][ T2961]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.495625][ T2961]  console_emit_next_record (kernel/printk/printk.c:3183)
[   86.495629][ T2961]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   86.495630][ T2961]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   86.495634][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495636][ T2961]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.495640][ T2961]  console_flush_one_record (kernel/printk/printk.c:3268)
[   86.495644][ T2961]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   86.495646][ T2961]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.495651][ T2961]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   86.495654][ T2961]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   86.495655][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495657][ T2961]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   86.495660][ T2961]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   86.495662][ T2961]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   86.495665][ T2961]  vprintk_emit (kernel/printk/printk.c:2479)
[   86.495668][ T2961]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   86.495670][ T2961]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.495672][ T2961]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   86.495674][ T2961]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   86.495677][ T2961]  _printk (kernel/printk/printk.c:2504)
[   86.495681][ T2961]  ? snapshot_read.cold (user.c:?)
[   86.495683][ T2961]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   86.495685][ T2961]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   86.495688][ T2961]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   86.495690][ T2961]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   86.495693][ T2961]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   86.495696][ T2961]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   86.495698][ T2961]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   86.495701][ T2961]  ? netdev_notice (net/core/dev.c:13194)
[   86.495704][ T2961]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.495706][ T2961]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.495709][ T2961]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   86.495712][ T2961]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   86.495714][ T2961]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   86.495716][ T2961]  ? 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))
[   86.495722][ T2961]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   86.495724][ T2961]  ? __kernel_text_address (kernel/extable.c:79)
[   86.495726][ T2961]  ? write_profile (profile.c:?)
[   86.495730][ T2961]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   86.495736][ T2961]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   86.495743][ T2961]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   86.495745][ T2961]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   86.495747][ T2961]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   86.495749][ T2961]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   86.495752][ T2961]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   86.495754][ T2961]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   86.495756][ T2961]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   86.495758][ T2961]  ? kasan_save_stack (mm/kasan/common.c:58)
[   86.495760][ T2961]  ? kasan_save_stack (mm/kasan/common.c:57)
[   86.495761][ T2961]  ? kasan_save_track (mm/kasan/common.c:78)
[   86.495763][ T2961]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   86.495765][ T2961]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.495767][ T2961]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   86.495770][ T2961]  ? ___sys_sendmsg (net/socket.c:2758)
[   86.495773][ T2961]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.495775][ T2961]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   86.495778][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495780][ T2961]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   86.495781][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495782][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495784][ T2961]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   86.495786][ T2961]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   86.495789][ T2961]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   86.495791][ T2961]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   86.495794][ T2961]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   86.495795][ T2961]  ? nla_get_range_signed (lib/nlattr.c:270)
[   86.495800][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495802][ T2961]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   86.495807][ T2961]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   86.495812][ T2961]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.495814][ T2961]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.495818][ T2961]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.495820][ T2961]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.495822][ T2961]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.495824][ T2961]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.495827][ T2961]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   86.495829][ T2961]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   86.495833][ T2961]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   86.495834][ T2961]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   86.495838][ T2961]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   86.495840][ T2961]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.495843][ T2961]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   86.495847][ T2961]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   86.495849][ T2961]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   86.495856][ T2961]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   86.495858][ T2961]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   86.495862][ T2961]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   86.495866][ T2961]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   86.495868][ T2961]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   86.495872][ T2961]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   86.495876][ T2961]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   86.495880][ T2961]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   86.495881][ T2961]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   86.495886][ T2961]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   86.495889][ T2961]  ____sys_sendmsg (net/socket.c:2713)
[   86.495891][ T2961]  ? copy_msghdr_from_user (net/socket.c:2650)
[   86.495894][ T2961]  ? sock_write_iter (net/socket.c:1269)
[   86.495895][ T2961]  ? move_addr_to_kernel (net/socket.c:258)
[   86.495902][ T2961]  ___sys_sendmsg (net/socket.c:2767)
[   86.495905][ T2961]  ? copy_msghdr_from_user (net/socket.c:2619)
[   86.495920][ T2961]  __sys_sendmsg (net/socket.c:2799)
[   86.495923][ T2961]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   86.495929][ T2961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   86.495932][ T2961]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   86.495935][ T2961]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   86.495938][ T2961]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   86.495940][ T2961] RIP: 0033:0x7fbed851e54e
[   86.495944][ T2961] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   86.495945][ T2961] RSP: 002b:00007ffea10704a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   86.495948][ T2961] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbed851e54e
[   86.495955][ T2961] RDX: 0000000000000000 RSI: 00007ffea1070550 RDI: 0000000000000005
[   86.495956][ T2961] RBP: 00007ffea10704b0 R08: 0000000000000000 R09: 0000000000000000
[   86.495957][ T2961] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195c7
[   86.495957][ T2961] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea1070c20
| [   98.752348][ T3277] softirqs last disabled at (19858): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   98.752351][ T3277] Preemption disabled at:
| [   98.752351][ T3277] vprintk_emit (kernel/printk/printk.c:2471)
| [   98.752360][ T3277] Tainted: [W]=WARN
[   98.752361][ T3277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.752362][ T3277] Call Trace:
[   98.752364][ T3277]  <TASK>
[   98.752366][ T3277]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   98.752372][ T3277]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   98.752373][ T3277]  __might_resched.cold (kernel/sched/core.c:9234)
[   98.752378][ T3277]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   98.752382][ T3277]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   98.752387][ T3277]  __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))
[   98.752389][ T3277]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   98.752396][ T3277]  ? 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)
[   98.752398][ T3277]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   98.752402][ T3277]  put_chars (drivers/char/virtio_console.c:1176)
[   98.752405][ T3277]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   98.752406][ T3277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   98.752409][ T3277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   98.752415][ T3277]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   98.752423][ T3277]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   98.752426][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752428][ T3277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.752432][ T3277]  console_emit_next_record (kernel/printk/printk.c:3183)
[   98.752436][ T3277]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   98.752438][ T3277]  ? 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))
[   98.752441][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752443][ T3277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.752447][ T3277]  console_flush_one_record (kernel/printk/printk.c:3268)
[   98.752451][ T3277]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   98.752453][ T3277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.752459][ T3277]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   98.752462][ T3277]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   98.752464][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752465][ T3277]  ? 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)
[   98.752469][ T3277]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   98.752471][ T3277]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   98.752474][ T3277]  vprintk_emit (kernel/printk/printk.c:2479)
[   98.752477][ T3277]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   98.752479][ T3277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.752482][ T3277]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   98.752486][ T3277]  _printk (kernel/printk/printk.c:2504)
[   98.752489][ T3277]  ? snapshot_read.cold (user.c:?)
[   98.752493][ T3277]  ? br_multicast_flood (??:?)
[   98.752496][ T3277]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   98.752498][ T3277]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   98.752499][ T3277]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   98.752503][ T3277]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   98.752508][ T3277]  br_init_port (net/bridge/br_stp_if.c:39)
[   98.752510][ T3277]  new_nbp (net/bridge/br_if.c:449)
[   98.752514][ T3277]  br_add_if (net/bridge/br_if.c:592)
[   98.752517][ T3277]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   98.752520][ T3277]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   98.752526][ T3277]  do_set_master (net/core/rtnetlink.c:3071)
[   98.752530][ T3277]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   98.752533][ T3277]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   98.752537][ T3277]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   98.752538][ T3277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   98.752541][ T3277]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   98.752544][ T3277]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   98.752546][ T3277]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   98.752548][ T3277]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   98.752550][ T3277]  ? kasan_save_stack (mm/kasan/common.c:58)
[   98.752553][ T3277]  ? kasan_save_stack (mm/kasan/common.c:57)
[   98.752554][ T3277]  ? kasan_save_track (mm/kasan/common.c:78)
[   98.752555][ T3277]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   98.752558][ T3277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.752559][ T3277]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   98.752562][ T3277]  ? ___sys_sendmsg (net/socket.c:2758)
[   98.752566][ T3277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.752568][ T3277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   98.752571][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752572][ T3277]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.752574][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752575][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752577][ T3277]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   98.752579][ T3277]  ? __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)
[   98.752582][ T3277]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   98.752584][ T3277]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   98.752588][ T3277]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   98.752589][ T3277]  ? nla_get_range_signed (lib/nlattr.c:270)
[   98.752594][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752596][ T3277]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   98.752602][ T3277]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   98.752607][ T3277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.752609][ T3277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.752614][ T3277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.752616][ T3277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.752618][ T3277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.752620][ T3277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.752624][ T3277]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.752626][ T3277]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   98.752629][ T3277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   98.752631][ T3277]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.752635][ T3277]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.752637][ T3277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.752641][ T3277]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   98.752644][ T3277]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   98.752647][ T3277]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   98.752654][ T3277]  ? 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))
[   98.752656][ T3277]  ? 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))
[   98.752660][ T3277]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   98.752664][ T3277]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   98.752667][ T3277]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.752671][ T3277]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   98.752675][ T3277]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   98.752679][ T3277]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.752681][ T3277]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   98.752686][ T3277]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   98.752689][ T3277]  ____sys_sendmsg (net/socket.c:2713)
[   98.752692][ T3277]  ? copy_msghdr_from_user (net/socket.c:2650)
[   98.752694][ T3277]  ? sock_write_iter (net/socket.c:1269)
[   98.752696][ T3277]  ? move_addr_to_kernel (net/socket.c:258)
[   98.752703][ T3277]  ___sys_sendmsg (net/socket.c:2767)
[   98.752706][ T3277]  ? copy_msghdr_from_user (net/socket.c:2619)
[   98.752723][ T3277]  __sys_sendmsg (net/socket.c:2799)
[   98.752726][ T3277]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   98.752733][ T3277]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.752736][ T3277]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   98.752741][ T3277]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   98.752744][ T3277]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   98.752746][ T3277] RIP: 0033:0x7fbd1fc6c54e
[   98.752750][ T3277] 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
[   98.752751][ T3277] RSP: 002b:00007ffd7e4af6a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   98.752754][ T3277] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd1fc6c54e
[   98.752756][ T3277] RDX: 0000000000000000 RSI: 00007ffd7e4af750 RDI: 0000000000000005
[   98.752757][ T3277] RBP: 00007ffd7e4af6b0 R08: 0000000000000000 R09: 0000000000000000
[   98.752758][ T3277] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195d3
[   98.752758][ T3277] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd7e4afe20
| [  100.169476][ T3365] softirqs last disabled at (21536): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  100.169479][ T3365] Preemption disabled at:
| [  100.169480][ T3365] vprintk_emit (kernel/printk/printk.c:2471)
| [  100.169488][ T3365] Tainted: [W]=WARN
[  100.169489][ T3365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  100.169490][ T3365] Call Trace:
[  100.169492][ T3365]  <TASK>
[  100.169493][ T3365]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  100.169500][ T3365]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  100.169501][ T3365]  __might_resched.cold (kernel/sched/core.c:9234)
[  100.169506][ T3365]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  100.169510][ T3365]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  100.169515][ T3365]  __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))
[  100.169517][ T3365]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  100.169523][ T3365]  ? 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)
[  100.169526][ T3365]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  100.169530][ T3365]  put_chars (drivers/char/virtio_console.c:1176)
[  100.169532][ T3365]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  100.169534][ T3365]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  100.169537][ T3365]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  100.169543][ T3365]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  100.169551][ T3365]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  100.169554][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169556][ T3365]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  100.169560][ T3365]  console_emit_next_record (kernel/printk/printk.c:3183)
[  100.169564][ T3365]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  100.169566][ T3365]  ? 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))
[  100.169570][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169571][ T3365]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  100.169575][ T3365]  console_flush_one_record (kernel/printk/printk.c:3268)
[  100.169580][ T3365]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  100.169582][ T3365]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  100.169587][ T3365]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  100.169590][ T3365]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  100.169592][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169594][ T3365]  ? 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)
[  100.169598][ T3365]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  100.169600][ T3365]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  100.169602][ T3365]  vprintk_emit (kernel/printk/printk.c:2479)
[  100.169606][ T3365]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  100.169608][ T3365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  100.169611][ T3365]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  100.169614][ T3365]  _printk (kernel/printk/printk.c:2504)
[  100.169618][ T3365]  ? snapshot_read.cold (user.c:?)
[  100.169622][ T3365]  ? br_multicast_flood (??:?)
[  100.169625][ T3365]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  100.169627][ T3365]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  100.169628][ T3365]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  100.169632][ T3365]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  100.169637][ T3365]  br_init_port (net/bridge/br_stp_if.c:39)
[  100.169639][ T3365]  new_nbp (net/bridge/br_if.c:449)
[  100.169643][ T3365]  br_add_if (net/bridge/br_if.c:592)
[  100.169645][ T3365]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  100.169649][ T3365]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  100.169654][ T3365]  do_set_master (net/core/rtnetlink.c:3071)
[  100.169658][ T3365]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  100.169661][ T3365]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  100.169665][ T3365]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  100.169666][ T3365]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  100.169669][ T3365]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  100.169672][ T3365]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  100.169674][ T3365]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  100.169676][ T3365]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  100.169679][ T3365]  ? kasan_save_stack (mm/kasan/common.c:58)
[  100.169681][ T3365]  ? kasan_save_stack (mm/kasan/common.c:57)
[  100.169682][ T3365]  ? kasan_save_track (mm/kasan/common.c:78)
[  100.169684][ T3365]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  100.169686][ T3365]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  100.169688][ T3365]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  100.169691][ T3365]  ? ___sys_sendmsg (net/socket.c:2758)
[  100.169695][ T3365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  100.169697][ T3365]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  100.169699][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169701][ T3365]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  100.169703][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169704][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169706][ T3365]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  100.169708][ T3365]  ? __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)
[  100.169711][ T3365]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  100.169713][ T3365]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  100.169716][ T3365]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  100.169718][ T3365]  ? nla_get_range_signed (lib/nlattr.c:270)
[  100.169723][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169725][ T3365]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  100.169730][ T3365]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  100.169736][ T3365]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  100.169737][ T3365]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  100.169744][ T3365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  100.169746][ T3365]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  100.169749][ T3365]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  100.169751][ T3365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  100.169754][ T3365]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  100.169756][ T3365]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  100.169760][ T3365]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  100.169761][ T3365]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  100.169766][ T3365]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  100.169768][ T3365]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  100.169771][ T3365]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  100.169774][ T3365]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  100.169777][ T3365]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  100.169784][ T3365]  ? 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))
[  100.169786][ T3365]  ? 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))
[  100.169791][ T3365]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  100.169795][ T3365]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  100.169797][ T3365]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  100.169802][ T3365]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  100.169806][ T3365]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  100.169810][ T3365]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  100.169811][ T3365]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  100.169817][ T3365]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  100.169820][ T3365]  ____sys_sendmsg (net/socket.c:2713)
[  100.169822][ T3365]  ? copy_msghdr_from_user (net/socket.c:2650)
[  100.169824][ T3365]  ? sock_write_iter (net/socket.c:1269)
[  100.169826][ T3365]  ? move_addr_to_kernel (net/socket.c:258)
[  100.169833][ T3365]  ___sys_sendmsg (net/socket.c:2767)
[  100.169836][ T3365]  ? copy_msghdr_from_user (net/socket.c:2619)
[  100.169852][ T3365]  __sys_sendmsg (net/socket.c:2799)
[  100.169855][ T3365]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  100.169862][ T3365]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  100.169865][ T3365]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  100.169868][ T3365]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  100.169871][ T3365]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  100.169873][ T3365] RIP: 0033:0x7f55dc5ab54e
[  100.169876][ T3365] 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
[  100.169878][ T3365] RSP: 002b:00007ffea3545480 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  100.169881][ T3365] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f55dc5ab54e
[  100.169882][ T3365] RDX: 0000000000000000 RSI: 00007ffea3545530 RDI: 0000000000000005
[  100.169883][ T3365] RBP: 00007ffea3545490 R08: 0000000000000000 R09: 0000000000000000
[  100.169884][ T3365] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195d5
[  100.169885][ T3365] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea3545c00
| [  101.550801][ T3439] softirqs last disabled at (26386): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  101.550804][ T3439] Preemption disabled at:
| [  101.550804][ T3439] vprintk_emit (kernel/printk/printk.c:2471)
| [  101.550813][ T3439] Tainted: [W]=WARN
[  101.550814][ T3439] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  101.550815][ T3439] Call Trace:
[  101.550817][ T3439]  <TASK>
[  101.550818][ T3439]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  101.550824][ T3439]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  101.550826][ T3439]  __might_resched.cold (kernel/sched/core.c:9234)
[  101.550830][ T3439]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  101.550835][ T3439]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  101.550839][ T3439]  __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))
[  101.550841][ T3439]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  101.550848][ T3439]  ? 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)
[  101.550851][ T3439]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  101.550855][ T3439]  put_chars (drivers/char/virtio_console.c:1176)
[  101.550858][ T3439]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  101.550859][ T3439]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  101.550862][ T3439]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  101.550868][ T3439]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  101.550875][ T3439]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  101.550878][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.550880][ T3439]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.550884][ T3439]  console_emit_next_record (kernel/printk/printk.c:3183)
[  101.550888][ T3439]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  101.550890][ T3439]  ? 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))
[  101.550893][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.550894][ T3439]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.550898][ T3439]  console_flush_one_record (kernel/printk/printk.c:3268)
[  101.550903][ T3439]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  101.550904][ T3439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.550910][ T3439]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  101.550912][ T3439]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  101.550914][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.550916][ T3439]  ? 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)
[  101.550920][ T3439]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  101.550922][ T3439]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  101.550925][ T3439]  vprintk_emit (kernel/printk/printk.c:2479)
[  101.550928][ T3439]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  101.550930][ T3439]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.550932][ T3439]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  101.550936][ T3439]  _printk (kernel/printk/printk.c:2504)
[  101.550940][ T3439]  ? snapshot_read.cold (user.c:?)
[  101.550943][ T3439]  ? br_multicast_flood (??:?)
[  101.550947][ T3439]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  101.550948][ T3439]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  101.550949][ T3439]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  101.550954][ T3439]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  101.550958][ T3439]  br_init_port (net/bridge/br_stp_if.c:39)
[  101.550960][ T3439]  new_nbp (net/bridge/br_if.c:449)
[  101.550964][ T3439]  br_add_if (net/bridge/br_if.c:592)
[  101.550966][ T3439]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  101.550970][ T3439]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  101.550975][ T3439]  do_set_master (net/core/rtnetlink.c:3071)
[  101.550979][ T3439]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  101.550982][ T3439]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  101.550986][ T3439]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  101.550987][ T3439]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  101.550990][ T3439]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  101.550994][ T3439]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  101.550996][ T3439]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  101.550997][ T3439]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  101.551000][ T3439]  ? kasan_save_stack (mm/kasan/common.c:58)
[  101.551002][ T3439]  ? kasan_save_stack (mm/kasan/common.c:57)
[  101.551003][ T3439]  ? kasan_save_track (mm/kasan/common.c:78)
[  101.551004][ T3439]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  101.551007][ T3439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.551014][ T3439]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  101.551017][ T3439]  ? ___sys_sendmsg (net/socket.c:2758)
[  101.551021][ T3439]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.551023][ T3439]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  101.551025][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.551027][ T3439]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.551029][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.551030][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.551031][ T3439]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  101.551034][ T3439]  ? __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)
[  101.551035][ T3439]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  101.551037][ T3439]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  101.551041][ T3439]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  101.551042][ T3439]  ? nla_get_range_signed (lib/nlattr.c:270)
[  101.551047][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.551049][ T3439]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  101.551054][ T3439]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  101.551059][ T3439]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.551061][ T3439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.551066][ T3439]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.551067][ T3439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.551070][ T3439]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.551071][ T3439]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.551075][ T3439]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.551077][ T3439]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  101.551080][ T3439]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  101.551081][ T3439]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.551086][ T3439]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.551088][ T3439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.551091][ T3439]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  101.551094][ T3439]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  101.551097][ T3439]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  101.551103][ T3439]  ? 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))
[  101.551105][ T3439]  ? 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))
[  101.551110][ T3439]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  101.551114][ T3439]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  101.551116][ T3439]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.551120][ T3439]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  101.551124][ T3439]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  101.551128][ T3439]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.551130][ T3439]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  101.551135][ T3439]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  101.551138][ T3439]  ____sys_sendmsg (net/socket.c:2713)
[  101.551140][ T3439]  ? copy_msghdr_from_user (net/socket.c:2650)
[  101.551142][ T3439]  ? sock_write_iter (net/socket.c:1269)
[  101.551144][ T3439]  ? move_addr_to_kernel (net/socket.c:258)
[  101.551151][ T3439]  ___sys_sendmsg (net/socket.c:2767)
[  101.551154][ T3439]  ? copy_msghdr_from_user (net/socket.c:2619)
[  101.551169][ T3439]  __sys_sendmsg (net/socket.c:2799)
[  101.551172][ T3439]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  101.551178][ T3439]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.551181][ T3439]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  101.551184][ T3439]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  101.551187][ T3439]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  101.551189][ T3439] RIP: 0033:0x7f9fbf51454e
[  101.551193][ T3439] 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
[  101.551194][ T3439] RSP: 002b:00007fffd9e59200 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  101.551197][ T3439] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9fbf51454e
[  101.551198][ T3439] RDX: 0000000000000000 RSI: 00007fffd9e592b0 RDI: 0000000000000005
[  101.551199][ T3439] RBP: 00007fffd9e59210 R08: 0000000000000000 R09: 0000000000000000
[  101.551200][ T3439] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195d6
[  101.551201][ T3439] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd9e59980
| [  102.867292][ T3519] softirqs last disabled at (15228): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  102.867295][ T3519] Preemption disabled at:
| [  102.867296][ T3519] vprintk_emit (kernel/printk/printk.c:2471)
| [  102.867304][ T3519] Tainted: [W]=WARN
[  102.867305][ T3519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  102.867307][ T3519] Call Trace:
[  102.867308][ T3519]  <TASK>
[  102.867310][ T3519]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  102.867316][ T3519]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  102.867318][ T3519]  __might_resched.cold (kernel/sched/core.c:9234)
[  102.867323][ T3519]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  102.867327][ T3519]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  102.867331][ T3519]  __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))
[  102.867333][ T3519]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  102.867340][ T3519]  ? 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)
[  102.867343][ T3519]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  102.867347][ T3519]  put_chars (drivers/char/virtio_console.c:1176)
[  102.867349][ T3519]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  102.867351][ T3519]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  102.867354][ T3519]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  102.867360][ T3519]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  102.867368][ T3519]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  102.867371][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867373][ T3519]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.867377][ T3519]  console_emit_next_record (kernel/printk/printk.c:3183)
[  102.867381][ T3519]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  102.867383][ T3519]  ? 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))
[  102.867386][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867388][ T3519]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.867392][ T3519]  console_flush_one_record (kernel/printk/printk.c:3268)
[  102.867397][ T3519]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  102.867399][ T3519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.867404][ T3519]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  102.867407][ T3519]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  102.867409][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867411][ T3519]  ? 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)
[  102.867415][ T3519]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  102.867416][ T3519]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  102.867419][ T3519]  vprintk_emit (kernel/printk/printk.c:2479)
[  102.867423][ T3519]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  102.867424][ T3519]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  102.867430][ T3519]  _printk (kernel/printk/printk.c:2504)
[  102.867434][ T3519]  ? snapshot_read.cold (user.c:?)
[  102.867437][ T3519]  ? br_multicast_flood (??:?)
[  102.867441][ T3519]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  102.867442][ T3519]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  102.867443][ T3519]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  102.867448][ T3519]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  102.867452][ T3519]  br_init_port (net/bridge/br_stp_if.c:39)
[  102.867455][ T3519]  new_nbp (net/bridge/br_if.c:449)
[  102.867459][ T3519]  br_add_if (net/bridge/br_if.c:592)
[  102.867462][ T3519]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  102.867465][ T3519]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  102.867471][ T3519]  do_set_master (net/core/rtnetlink.c:3071)
[  102.867475][ T3519]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  102.867478][ T3519]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  102.867482][ T3519]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  102.867483][ T3519]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  102.867486][ T3519]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  102.867489][ T3519]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  102.867491][ T3519]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  102.867493][ T3519]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  102.867496][ T3519]  ? kasan_save_stack (mm/kasan/common.c:58)
[  102.867498][ T3519]  ? kasan_save_stack (mm/kasan/common.c:57)
[  102.867500][ T3519]  ? kasan_save_track (mm/kasan/common.c:78)
[  102.867501][ T3519]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  102.867504][ T3519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.867506][ T3519]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  102.867508][ T3519]  ? ___sys_sendmsg (net/socket.c:2758)
[  102.867512][ T3519]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  102.867514][ T3519]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  102.867517][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867519][ T3519]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.867521][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867522][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867524][ T3519]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  102.867526][ T3519]  ? __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)
[  102.867529][ T3519]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  102.867531][ T3519]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  102.867535][ T3519]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  102.867536][ T3519]  ? nla_get_range_signed (lib/nlattr.c:270)
[  102.867541][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867543][ T3519]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  102.867549][ T3519]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  102.867554][ T3519]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  102.867556][ T3519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.867561][ T3519]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  102.867563][ T3519]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.867566][ T3519]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  102.867567][ T3519]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  102.867571][ T3519]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  102.867573][ T3519]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  102.867577][ T3519]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  102.867578][ T3519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.867583][ T3519]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  102.867585][ T3519]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.867588][ T3519]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  102.867592][ T3519]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  102.867595][ T3519]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  102.867601][ T3519]  ? 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))
[  102.867603][ T3519]  ? 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))
[  102.867608][ T3519]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  102.867612][ T3519]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  102.867615][ T3519]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.867619][ T3519]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  102.867624][ T3519]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  102.867627][ T3519]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  102.867629][ T3519]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  102.867635][ T3519]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  102.867638][ T3519]  ____sys_sendmsg (net/socket.c:2713)
[  102.867640][ T3519]  ? copy_msghdr_from_user (net/socket.c:2650)
[  102.867643][ T3519]  ? sock_write_iter (net/socket.c:1269)
[  102.867644][ T3519]  ? move_addr_to_kernel (net/socket.c:258)
[  102.867652][ T3519]  ___sys_sendmsg (net/socket.c:2767)
[  102.867655][ T3519]  ? copy_msghdr_from_user (net/socket.c:2619)
[  102.867672][ T3519]  __sys_sendmsg (net/socket.c:2799)
[  102.867675][ T3519]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  102.867681][ T3519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.867685][ T3519]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  102.867688][ T3519]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  102.867691][ T3519]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  102.867693][ T3519] RIP: 0033:0x7f057983054e
[  102.867696][ T3519] 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
[  102.867698][ T3519] RSP: 002b:00007ffcc596bd50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  102.867701][ T3519] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f057983054e
[  102.867702][ T3519] RDX: 0000000000000000 RSI: 00007ffcc596be00 RDI: 0000000000000005
[  102.867703][ T3519] RBP: 00007ffcc596bd60 R08: 0000000000000000 R09: 0000000000000000
[  102.867704][ T3519] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195d8
[  102.867705][ T3519] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcc596c4d0
| [  103.880576][ T3569] softirqs last disabled at (15750): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119)
| [  103.880578][ T3569] Preemption disabled at:
| [  103.880579][ T3569] 0x0
| [  103.880589][ T3569] Tainted: [W]=WARN
[  103.880590][ T3569] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  103.880592][ T3569] Call Trace:
[  103.880593][ T3569]  <TASK>
[  103.880595][ T3569]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  103.880602][ T3569]  __might_resched.cold (kernel/sched/core.c:9234)
[  103.880607][ T3569]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  103.880611][ T3569]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  103.880615][ T3569]  __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))
[  103.880617][ T3569]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.880624][ T3569]  ? 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)
[  103.880627][ T3569]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.880631][ T3569]  put_chars (drivers/char/virtio_console.c:1176)
[  103.880633][ T3569]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  103.880635][ T3569]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.880638][ T3569]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.880644][ T3569]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  103.880651][ T3569]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  103.880654][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880656][ T3569]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.880660][ T3569]  console_emit_next_record (kernel/printk/printk.c:3183)
[  103.880664][ T3569]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  103.880666][ T3569]  ? 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))
[  103.880670][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880672][ T3569]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.880676][ T3569]  console_flush_one_record (kernel/printk/printk.c:3268)
[  103.880680][ T3569]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  103.880682][ T3569]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.880688][ T3569]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  103.880690][ T3569]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  103.880692][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880694][ T3569]  ? 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)
[  103.880698][ T3569]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  103.880700][ T3569]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  103.880703][ T3569]  vprintk_emit (kernel/printk/printk.c:2479)
[  103.880706][ T3569]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  103.880708][ T3569]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.880710][ T3569]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  103.880715][ T3569]  _printk (kernel/printk/printk.c:2504)
[  103.880718][ T3569]  ? snapshot_read.cold (user.c:?)
[  103.880724][ T3569]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.880728][ T3569]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  103.880732][ T3569]  br_init_port (net/bridge/br_stp_if.c:39)
[  103.880735][ T3569]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[  103.880737][ T3569]  br_device_event (net/bridge/br.c:120)
[  103.880742][ T3569]  ? packet_sendmsg_spkt (af_packet.c:?)
[  103.880744][ T3569]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[  103.880751][ T3569]  notifier_call_chain (kernel/notifier.c:85)
[  103.880757][ T3569]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[  103.880762][ T3569]  ? netif_change_name (net/core/dev.c:1517)
[  103.880766][ T3569]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[  103.880768][ T3569]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  103.880771][ T3569]  ? __kernel_text_address (kernel/extable.c:79)
[  103.880773][ T3569]  ? write_profile (profile.c:?)
[  103.880778][ T3569]  netif_change_flags (net/core/dev.c:9882)
[  103.880782][ T3569]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  103.880786][ T3569]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  103.880788][ T3569]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  103.880790][ T3569]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  103.880792][ T3569]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  103.880795][ T3569]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.880797][ T3569]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  103.880799][ T3569]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.880802][ T3569]  ? kasan_save_stack (mm/kasan/common.c:58)
[  103.880804][ T3569]  ? kasan_save_stack (mm/kasan/common.c:57)
[  103.880805][ T3569]  ? kasan_save_track (mm/kasan/common.c:78)
[  103.880807][ T3569]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  103.880809][ T3569]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.880811][ T3569]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  103.880814][ T3569]  ? ___sys_sendmsg (net/socket.c:2758)
[  103.880818][ T3569]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.880820][ T3569]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  103.880823][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880824][ T3569]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.880826][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880827][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880829][ T3569]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  103.880831][ T3569]  ? __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)
[  103.880834][ T3569]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  103.880836][ T3569]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  103.880840][ T3569]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  103.880843][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880846][ T3569]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  103.880851][ T3569]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  103.880856][ T3569]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.880858][ T3569]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.880863][ T3569]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.880865][ T3569]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.880867][ T3569]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.880869][ T3569]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.880873][ T3569]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.880875][ T3569]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  103.880879][ T3569]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.880880][ T3569]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.880885][ T3569]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.880887][ T3569]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.880890][ T3569]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  103.880892][ T3569]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.880895][ T3569]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  103.880902][ T3569]  ? 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))
[  103.880904][ T3569]  ? 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))
[  103.880909][ T3569]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  103.880913][ T3569]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  103.880915][ T3569]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.880920][ T3569]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  103.880924][ T3569]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  103.880928][ T3569]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.880930][ T3569]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  103.880935][ T3569]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  103.880938][ T3569]  ____sys_sendmsg (net/socket.c:2713)
[  103.880940][ T3569]  ? copy_msghdr_from_user (net/socket.c:2650)
[  103.880943][ T3569]  ? sock_write_iter (net/socket.c:1269)
[  103.880944][ T3569]  ? move_addr_to_kernel (net/socket.c:258)
[  103.880952][ T3569]  ___sys_sendmsg (net/socket.c:2767)
[  103.880955][ T3569]  ? copy_msghdr_from_user (net/socket.c:2619)
[  103.880971][ T3569]  __sys_sendmsg (net/socket.c:2799)
[  103.880975][ T3569]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  103.880981][ T3569]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.880984][ T3569]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  103.880987][ T3569]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  103.880990][ T3569]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  103.880992][ T3569] RIP: 0033:0x7faac62f254e
[  103.880994][ T3569] 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
[  103.880996][ T3569] RSP: 002b:00007ffc3c251a80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  103.880999][ T3569] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007faac62f254e
[  103.881001][ T3569] RDX: 0000000000000000 RSI: 00007ffc3c251b30 RDI: 0000000000000005
[  103.881001][ T3569] RBP: 00007ffc3c251a90 R08: 0000000000000000 R09: 0000000000000000
[  103.881002][ T3569] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195d9
[  103.881003][ T3569] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3c252200
| [  105.248392][ T3650] softirqs last disabled at (16308): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  105.248395][ T3650] Preemption disabled at:
| [  105.248396][ T3650] vprintk_emit (kernel/printk/printk.c:2471)
| [  105.248405][ T3650] Tainted: [W]=WARN
[  105.248405][ T3650] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  105.248407][ T3650] Call Trace:
[  105.248409][ T3650]  <TASK>
[  105.248410][ T3650]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  105.248417][ T3650]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  105.248418][ T3650]  __might_resched.cold (kernel/sched/core.c:9234)
[  105.248423][ T3650]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  105.248427][ T3650]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  105.248432][ T3650]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  105.248434][ T3650]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.248441][ T3650]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  105.248443][ T3650]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.248447][ T3650]  put_chars (drivers/char/virtio_console.c:1176)
[  105.248450][ T3650]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  105.248451][ T3650]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.248455][ T3650]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.248460][ T3650]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  105.248469][ T3650]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  105.248471][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248473][ T3650]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.248477][ T3650]  console_emit_next_record (kernel/printk/printk.c:3183)
[  105.248482][ T3650]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  105.248484][ T3650]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  105.248487][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248489][ T3650]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.248493][ T3650]  console_flush_one_record (kernel/printk/printk.c:3268)
[  105.248497][ T3650]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  105.248500][ T3650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.248505][ T3650]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  105.248508][ T3650]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  105.248510][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248512][ T3650]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  105.248516][ T3650]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  105.248518][ T3650]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  105.248521][ T3650]  vprintk_emit (kernel/printk/printk.c:2479)
[  105.248524][ T3650]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  105.248526][ T3650]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.248531][ T3650]  _printk (kernel/printk/printk.c:2504)
[  105.248535][ T3650]  ? snapshot_read.cold (user.c:?)
[  105.248539][ T3650]  ? br_multicast_flood (??:?)
[  105.248542][ T3650]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.248544][ T3650]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.248545][ T3650]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.248549][ T3650]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  105.248554][ T3650]  br_init_port (net/bridge/br_stp_if.c:39)
[  105.248557][ T3650]  new_nbp (net/bridge/br_if.c:449)
[  105.248561][ T3650]  br_add_if (net/bridge/br_if.c:592)
[  105.248563][ T3650]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  105.248567][ T3650]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  105.248573][ T3650]  do_set_master (net/core/rtnetlink.c:3071)
[  105.248577][ T3650]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.248580][ T3650]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  105.248584][ T3650]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  105.248585][ T3650]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  105.248588][ T3650]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  105.248591][ T3650]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.248593][ T3650]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  105.248595][ T3650]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.248598][ T3650]  ? kasan_save_stack (mm/kasan/common.c:58)
[  105.248600][ T3650]  ? kasan_save_stack (mm/kasan/common.c:57)
[  105.248601][ T3650]  ? kasan_save_track (mm/kasan/common.c:78)
[  105.248602][ T3650]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  105.248605][ T3650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.248607][ T3650]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  105.248610][ T3650]  ? ___sys_sendmsg (net/socket.c:2758)
[  105.248614][ T3650]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.248616][ T3650]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.248618][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248620][ T3650]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.248622][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248623][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248625][ T3650]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  105.248627][ T3650]  ? __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)
[  105.248630][ T3650]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  105.248632][ T3650]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.248635][ T3650]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  105.248636][ T3650]  ? nla_get_range_signed (lib/nlattr.c:270)
[  105.248642][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248644][ T3650]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  105.248649][ T3650]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.248655][ T3650]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.248657][ T3650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.248662][ T3650]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.248664][ T3650]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.248666][ T3650]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.248668][ T3650]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.248672][ T3650]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.248674][ T3650]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.248677][ T3650]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.248679][ T3650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.248683][ T3650]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.248685][ T3650]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.248689][ T3650]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  105.248692][ T3650]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.248695][ T3650]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  105.248702][ T3650]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  105.248704][ T3650]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  105.248709][ T3650]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  105.248713][ T3650]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  105.248716][ T3650]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.248720][ T3650]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  105.248724][ T3650]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  105.248728][ T3650]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.248730][ T3650]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  105.248736][ T3650]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  105.248741][ T3650]  ____sys_sendmsg (net/socket.c:2713)
[  105.248743][ T3650]  ? copy_msghdr_from_user (net/socket.c:2650)
[  105.248746][ T3650]  ? sock_write_iter (net/socket.c:1269)
[  105.248748][ T3650]  ? move_addr_to_kernel (net/socket.c:258)
[  105.248755][ T3650]  ___sys_sendmsg (net/socket.c:2767)
[  105.248758][ T3650]  ? copy_msghdr_from_user (net/socket.c:2619)
[  105.248775][ T3650]  __sys_sendmsg (net/socket.c:2799)
[  105.248778][ T3650]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  105.248785][ T3650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.248788][ T3650]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  105.248791][ T3650]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  105.248794][ T3650]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  105.248796][ T3650] RIP: 0033:0x7f9d633a654e
[  105.248800][ T3650] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  105.248802][ T3650] RSP: 002b:00007ffdcb3ced10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  105.248805][ T3650] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9d633a654e
[  105.248806][ T3650] RDX: 0000000000000000 RSI: 00007ffdcb3cedc0 RDI: 0000000000000005
[  105.248807][ T3650] RBP: 00007ffdcb3ced20 R08: 0000000000000000 R09: 0000000000000000
[  105.248808][ T3650] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195da
[  105.248809][ T3650] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdcb3cf490
| [  106.255096][ T3692] softirqs last disabled at (15082): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  106.255099][ T3692] Preemption disabled at:
| [  106.255099][ T3692] vprintk_emit (kernel/printk/printk.c:2471)
| [  106.255109][ T3692] Tainted: [W]=WARN
[  106.255109][ T3692] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  106.255111][ T3692] Call Trace:
[  106.255113][ T3692]  <TASK>
[  106.255114][ T3692]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  106.255121][ T3692]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  106.255123][ T3692]  __might_resched.cold (kernel/sched/core.c:9234)
[  106.255127][ T3692]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  106.255131][ T3692]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  106.255136][ T3692]  __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))
[  106.255138][ T3692]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  106.255145][ T3692]  ? 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)
[  106.255148][ T3692]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  106.255152][ T3692]  put_chars (drivers/char/virtio_console.c:1176)
[  106.255154][ T3692]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  106.255156][ T3692]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  106.255159][ T3692]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  106.255165][ T3692]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  106.255173][ T3692]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  106.255176][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255178][ T3692]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  106.255182][ T3692]  console_emit_next_record (kernel/printk/printk.c:3183)
[  106.255186][ T3692]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  106.255188][ T3692]  ? 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))
[  106.255191][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255193][ T3692]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  106.255197][ T3692]  console_flush_one_record (kernel/printk/printk.c:3268)
[  106.255202][ T3692]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  106.255204][ T3692]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.255209][ T3692]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  106.255212][ T3692]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  106.255214][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255216][ T3692]  ? 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)
[  106.255220][ T3692]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  106.255222][ T3692]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  106.255225][ T3692]  vprintk_emit (kernel/printk/printk.c:2479)
[  106.255228][ T3692]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  106.255230][ T3692]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  106.255233][ T3692]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  106.255237][ T3692]  _printk (kernel/printk/printk.c:2504)
[  106.255241][ T3692]  ? snapshot_read.cold (user.c:?)
[  106.255245][ T3692]  ? br_multicast_flood (??:?)
[  106.255248][ T3692]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  106.255250][ T3692]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  106.255251][ T3692]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  106.255256][ T3692]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  106.255260][ T3692]  br_init_port (net/bridge/br_stp_if.c:39)
[  106.255263][ T3692]  new_nbp (net/bridge/br_if.c:449)
[  106.255267][ T3692]  br_add_if (net/bridge/br_if.c:592)
[  106.255270][ T3692]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  106.255273][ T3692]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  106.255279][ T3692]  do_set_master (net/core/rtnetlink.c:3071)
[  106.255283][ T3692]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  106.255287][ T3692]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  106.255290][ T3692]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  106.255292][ T3692]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  106.255295][ T3692]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  106.255298][ T3692]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  106.255300][ T3692]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  106.255302][ T3692]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  106.255304][ T3692]  ? kasan_save_stack (mm/kasan/common.c:58)
[  106.255307][ T3692]  ? kasan_save_stack (mm/kasan/common.c:57)
[  106.255308][ T3692]  ? kasan_save_track (mm/kasan/common.c:78)
[  106.255309][ T3692]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  106.255312][ T3692]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.255314][ T3692]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  106.255317][ T3692]  ? ___sys_sendmsg (net/socket.c:2758)
[  106.255321][ T3692]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  106.255323][ T3692]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  106.255325][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255327][ T3692]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  106.255329][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255330][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255332][ T3692]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  106.255334][ T3692]  ? __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)
[  106.255337][ T3692]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  106.255339][ T3692]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  106.255342][ T3692]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  106.255344][ T3692]  ? nla_get_range_signed (lib/nlattr.c:270)
[  106.255349][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255351][ T3692]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  106.255356][ T3692]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  106.255362][ T3692]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  106.255364][ T3692]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.255369][ T3692]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  106.255371][ T3692]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  106.255373][ T3692]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  106.255375][ T3692]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  106.255379][ T3692]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  106.255381][ T3692]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  106.255384][ T3692]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  106.255385][ T3692]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.255390][ T3692]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  106.255392][ T3692]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  106.255396][ T3692]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  106.255399][ T3692]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  106.255402][ T3692]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  106.255409][ T3692]  ? 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))
[  106.255411][ T3692]  ? 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))
[  106.255415][ T3692]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  106.255420][ T3692]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  106.255422][ T3692]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  106.255427][ T3692]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  106.255431][ T3692]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  106.255435][ T3692]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  106.255437][ T3692]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  106.255442][ T3692]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  106.255445][ T3692]  ____sys_sendmsg (net/socket.c:2713)
[  106.255447][ T3692]  ? copy_msghdr_from_user (net/socket.c:2650)
[  106.255450][ T3692]  ? sock_write_iter (net/socket.c:1269)
[  106.255452][ T3692]  ? move_addr_to_kernel (net/socket.c:258)
[  106.255459][ T3692]  ___sys_sendmsg (net/socket.c:2767)
[  106.255462][ T3692]  ? copy_msghdr_from_user (net/socket.c:2619)
[  106.255479][ T3692]  __sys_sendmsg (net/socket.c:2799)
[  106.255482][ T3692]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  106.255489][ T3692]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.255492][ T3692]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  106.255495][ T3692]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  106.255498][ T3692]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  106.255500][ T3692] RIP: 0033:0x7fad3312b54e
[  106.255504][ T3692] 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
[  106.255506][ T3692] RSP: 002b:00007ffd6d537d20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  106.255509][ T3692] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fad3312b54e
[  106.255510][ T3692] RDX: 0000000000000000 RSI: 00007ffd6d537dd0 RDI: 0000000000000005
[  106.255511][ T3692] RBP: 00007ffd6d537d30 R08: 0000000000000000 R09: 0000000000000000
[  106.255512][ T3692] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195db
[  106.255513][ T3692] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd6d5384a0
| [  107.532705][ T3770] softirqs last disabled at (26650): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  107.532708][ T3770] Preemption disabled at:
| [  107.532708][ T3770] vprintk_emit (kernel/printk/printk.c:2471)
| [  107.532717][ T3770] Tainted: [W]=WARN
[  107.532718][ T3770] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  107.532720][ T3770] Call Trace:
[  107.532721][ T3770]  <TASK>
[  107.532723][ T3770]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  107.532729][ T3770]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  107.532730][ T3770]  __might_resched.cold (kernel/sched/core.c:9234)
[  107.532734][ T3770]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  107.532738][ T3770]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  107.532746][ T3770]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  107.532748][ T3770]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  107.532754][ T3770]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  107.532757][ T3770]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  107.532761][ T3770]  put_chars (drivers/char/virtio_console.c:1176)
[  107.532764][ T3770]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  107.532765][ T3770]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.532769][ T3770]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  107.532774][ T3770]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  107.532782][ T3770]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  107.532785][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532787][ T3770]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.532791][ T3770]  console_emit_next_record (kernel/printk/printk.c:3183)
[  107.532795][ T3770]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  107.532797][ T3770]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  107.532800][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532802][ T3770]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.532806][ T3770]  console_flush_one_record (kernel/printk/printk.c:3268)
[  107.532810][ T3770]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  107.532812][ T3770]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.532817][ T3770]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  107.532820][ T3770]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  107.532822][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532824][ T3770]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  107.532828][ T3770]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  107.532829][ T3770]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  107.532832][ T3770]  vprintk_emit (kernel/printk/printk.c:2479)
[  107.532835][ T3770]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  107.532837][ T3770]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.532842][ T3770]  _printk (kernel/printk/printk.c:2504)
[  107.532846][ T3770]  ? snapshot_read.cold (user.c:?)
[  107.532850][ T3770]  ? br_multicast_flood (??:?)
[  107.532853][ T3770]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  107.532854][ T3770]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  107.532855][ T3770]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  107.532860][ T3770]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  107.532865][ T3770]  br_init_port (net/bridge/br_stp_if.c:39)
[  107.532867][ T3770]  new_nbp (net/bridge/br_if.c:449)
[  107.532871][ T3770]  br_add_if (net/bridge/br_if.c:592)
[  107.532874][ T3770]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  107.532877][ T3770]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  107.532883][ T3770]  do_set_master (net/core/rtnetlink.c:3071)
[  107.532886][ T3770]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  107.532890][ T3770]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  107.532893][ T3770]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  107.532894][ T3770]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  107.532897][ T3770]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  107.532900][ T3770]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  107.532902][ T3770]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  107.532904][ T3770]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  107.532907][ T3770]  ? kasan_save_stack (mm/kasan/common.c:58)
[  107.532909][ T3770]  ? kasan_save_stack (mm/kasan/common.c:57)
[  107.532910][ T3770]  ? kasan_save_track (mm/kasan/common.c:78)
[  107.532911][ T3770]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  107.532914][ T3770]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.532916][ T3770]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  107.532918][ T3770]  ? ___sys_sendmsg (net/socket.c:2758)
[  107.532922][ T3770]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.532924][ T3770]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  107.532927][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532929][ T3770]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  107.532930][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532931][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532933][ T3770]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  107.532935][ T3770]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  107.532938][ T3770]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  107.532940][ T3770]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  107.532944][ T3770]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  107.532945][ T3770]  ? nla_get_range_signed (lib/nlattr.c:270)
[  107.532950][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.532952][ T3770]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  107.532957][ T3770]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  107.532963][ T3770]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.532965][ T3770]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.532969][ T3770]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.532971][ T3770]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.532973][ T3770]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.532975][ T3770]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.532979][ T3770]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  107.532981][ T3770]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  107.532984][ T3770]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  107.532985][ T3770]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  107.532990][ T3770]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  107.532992][ T3770]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.532995][ T3770]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  107.532999][ T3770]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  107.533001][ T3770]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  107.533008][ T3770]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  107.533010][ T3770]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  107.533014][ T3770]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  107.533018][ T3770]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  107.533021][ T3770]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  107.533025][ T3770]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  107.533029][ T3770]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  107.533037][ T3770]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  107.533039][ T3770]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  107.533045][ T3770]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  107.533047][ T3770]  ____sys_sendmsg (net/socket.c:2713)
[  107.533050][ T3770]  ? copy_msghdr_from_user (net/socket.c:2650)
[  107.533052][ T3770]  ? sock_write_iter (net/socket.c:1269)
[  107.533054][ T3770]  ? move_addr_to_kernel (net/socket.c:258)
[  107.533061][ T3770]  ___sys_sendmsg (net/socket.c:2767)
[  107.533064][ T3770]  ? copy_msghdr_from_user (net/socket.c:2619)
[  107.533080][ T3770]  __sys_sendmsg (net/socket.c:2799)
[  107.533083][ T3770]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  107.533089][ T3770]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  107.533092][ T3770]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  107.533095][ T3770]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  107.533098][ T3770]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  107.533101][ T3770] RIP: 0033:0x7f872840254e
[  107.533104][ T3770] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  107.533106][ T3770] RSP: 002b:00007ffc99b5c840 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  107.533109][ T3770] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f872840254e
[  107.533111][ T3770] RDX: 0000000000000000 RSI: 00007ffc99b5c8f0 RDI: 0000000000000005
[  107.533112][ T3770] RBP: 00007ffc99b5c850 R08: 0000000000000000 R09: 0000000000000000
[  107.533112][ T3770] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9195dc


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
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars