======================================
| [   10.471618][  T225] softirqs last disabled at (30053): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.471620][  T225] Preemption disabled at:
| [   10.471621][  T225] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.471630][  T225] Tainted: [W]=WARN
[   10.471631][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.471633][  T225] Call Trace:
[   10.471635][  T225]  <TASK>
[   10.471636][  T225]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.471642][  T225]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.471644][  T225]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.471648][  T225]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.471652][  T225]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.471658][  T225]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.471660][  T225]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.471666][  T225]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.471669][  T225]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.471672][  T225]  put_chars (drivers/char/virtio_console.c:1176)
[   10.471675][  T225]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.471676][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.471681][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.471683][  T225]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.471688][  T225]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.471691][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.471695][  T225]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.471698][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.471703][  T225]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.471707][  T225]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.471708][  T225]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.471712][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.471714][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.471718][  T225]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.471722][  T225]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.471724][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.471729][  T225]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.471731][  T225]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.471733][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.471735][  T225]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.471739][  T225]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.471741][  T225]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.471744][  T225]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.471748][  T225]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.471753][  T225]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.471757][  T225]  _printk (kernel/printk/printk.c:2504)
[   10.471761][  T225]  ? snapshot_read.cold (user.c:?)
[   10.471767][  T225]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   10.471770][  T225] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   10.471773][  T225]  do_one_initcall (init/main.c:1357)
[   10.471776][  T225]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.471780][  T225]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.471783][  T225]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.471788][  T225]  do_init_module (kernel/module/main.c:3117)
[   10.471792][  T225]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.471796][  T225]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.471799][  T225]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.471803][  T225]  load_module (kernel/module/main.c:3593)
[   10.471810][  T225]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.471814][  T225]  ? __ia32_sys_fsconfig (??:?)
[   10.471817][  T225]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.471821][  T225]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.471824][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.471828][  T225]  init_module_from_file (kernel/module/main.c:3790)
[   10.471831][  T225]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.471839][  T225]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.471843][  T225]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.471846][  T225]  idempotent_init_module (kernel/module/main.c:3802)
[   10.471849][  T225]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.471855][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.471858][  T225]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.471864][  T225]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.471866][  T225]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.471870][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.471871][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.471874][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.471876][  T225] RIP: 0033:0x7fd1221a537d
[   10.471880][  T225] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   10.471881][  T225] RSP: 002b:00007ffc6c9f2678 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.471884][  T225] RAX: ffffffffffffffda RBX: 00005613963da810 RCX: 00007fd1221a537d
[   10.471886][  T225] RDX: 0000000000000000 RSI: 000056138461effd RDI: 0000000000000000
[   10.471886][  T225] RBP: 00007ffc6c9f2710 R08: 0000000000000000 R09: 0000000000000000
[   10.471887][  T225] R10: 0000000000000000 R11: 0000000000000246 R12: 000056138461effd
[   10.471888][  T225] R13: 00005613963da960 R14: 0000000000040000 R15: 0000000000000000
| [   11.550110][  T257] softirqs last disabled at (12928): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.550114][  T257] Preemption disabled at:
| [   11.550115][  T257] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.550127][  T257] Tainted: [W]=WARN
[   11.550128][  T257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.550130][  T257] Call Trace:
[   11.550132][  T257]  <TASK>
[   11.550134][  T257]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.550142][  T257]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.550145][  T257]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.550151][  T257]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.550157][  T257]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.550164][  T257]  __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))
[   11.550168][  T257]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.550176][  T257]  ? 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)
[   11.550179][  T257]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.550185][  T257]  put_chars (drivers/char/virtio_console.c:1176)
[   11.550189][  T257]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.550196][  T257]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.550202][  T257]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.550206][  T257]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.550209][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550211][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550217][  T257]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.550220][  T257]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.550225][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550230][  T257]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.550237][  T257]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.550242][  T257]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.550245][  T257]  ? 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))
[   11.550250][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550258][  T257]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.550265][  T257]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.550271][  T257]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.550274][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550283][  T257]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.550287][  T257]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.550290][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550293][  T257]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.550300][  T257]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.550302][  T257]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.550307][  T257]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.550313][  T257]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.550317][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.550319][  T257]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.550325][  T257]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.550331][  T257]  _printk (kernel/printk/printk.c:2504)
[   11.550336][  T257]  ? snapshot_read.cold (user.c:?)
[   11.550342][  T257]  ? br_multicast_flood (??:?) bridge
[   11.550359][  T257]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.550361][  T257]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.550362][  T257]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.550370][  T257] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.550386][  T257] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.550400][  T257] new_nbp (net/bridge/br_if.c:449) bridge
[   11.550415][  T257] br_add_if (net/bridge/br_if.c:592) bridge
[   11.550427][  T257]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.550432][  T257]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.550436][  T257]  ? __kernel_text_address (kernel/extable.c:79)
[   11.550442][  T257]  do_set_master (net/core/rtnetlink.c:3071)
[   11.550449][  T257]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.550455][  T257]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.550459][  T257]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.550461][  T257]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.550464][  T257]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.550468][  T257]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.550472][  T257]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.550474][  T257]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.550478][  T257]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.550482][  T257]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.550484][  T257]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.550488][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550491][  T257]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.550495][  T257]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.550501][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.550504][  T257]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.550508][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550511][  T257]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.550514][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550516][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550519][  T257]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.550525][  T257]  ? __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)
[   11.550527][  T257]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.550530][  T257]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.550536][  T257]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.550538][  T257]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.550546][  T257]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.550555][  T257]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.550564][  T257]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.550567][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550574][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.550577][  T257]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.550580][  T257]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.550583][  T257]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.550589][  T257]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.550592][  T257]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.550597][  T257]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.550599][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550606][  T257]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.550609][  T257]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.550615][  T257]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.550617][  T257]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.550622][  T257]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.550633][  T257]  ? 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))
[   11.550635][  T257]  ? 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))
[   11.550643][  T257]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.550649][  T257]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.550654][  T257]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.550661][  T257]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.550667][  T257]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.550674][  T257]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.550682][  T257]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.550686][  T257]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.550689][  T257]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.550692][  T257]  ? move_addr_to_kernel (net/socket.c:258)
[   11.550705][  T257]  ___sys_sendmsg (net/socket.c:2767)
[   11.550709][  T257]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.550739][  T257]  __sys_sendmsg (net/socket.c:2799)
[   11.550743][  T257]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.550754][  T257]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.550760][  T257]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.550763][  T257]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.550768][  T257]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.550771][  T257] RIP: 0033:0x7fbbc483354e
[   11.550775][  T257] 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
[   11.550777][  T257] RSP: 002b:00007fffdd4861e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.550781][  T257] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbbc483354e
[   11.550783][  T257] RDX: 0000000000000000 RSI: 00007fffdd486290 RDI: 0000000000000005
[   11.550784][  T257] RBP: 00007fffdd4861f0 R08: 0000000000000000 R09: 0000000000000000
[   11.550786][  T257] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918407
[   11.550787][  T257] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffdd486950
| [   19.655834][  T325] softirqs last disabled at (12640): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   19.655837][  T325] Preemption disabled at:
| [   19.655837][  T325] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.655847][  T325] Tainted: [W]=WARN
[   19.655848][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.655850][  T325] Call Trace:
[   19.655851][  T325]  <TASK>
[   19.655853][  T325]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.655859][  T325]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.655861][  T325]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.655866][  T325]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.655870][  T325]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.655876][  T325]  __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))
[   19.655878][  T325]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.655884][  T325]  ? 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)
[   19.655887][  T325]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.655890][  T325]  put_chars (drivers/char/virtio_console.c:1176)
[   19.655893][  T325]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.655894][  T325]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.655899][  T325]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.655904][  T325]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.655913][  T325]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.655916][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.655918][  T325]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.655922][  T325]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.655926][  T325]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.655928][  T325]  ? 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))
[   19.655931][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.655933][  T325]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.655937][  T325]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.655942][  T325]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.655944][  T325]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.655949][  T325]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.655951][  T325]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.655953][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.655956][  T325]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.655959][  T325]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.655961][  T325]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.655964][  T325]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.655968][  T325]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.655970][  T325]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.655972][  T325]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.655975][  T325]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.655976][  T325]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.655979][  T325]  ? ___sys_sendmsg (net/socket.c:2767)
[   19.655980][  T325]  ? __sys_sendmsg (net/socket.c:2799)
[   19.655982][  T325]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.655987][  T325]  _printk (kernel/printk/printk.c:2504)
[   19.655991][  T325]  ? snapshot_read.cold (user.c:?)
[   19.655995][  T325]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.655999][  T325]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.656002][  T325]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.656004][  T325]  ? netdev_notice (net/core/dev.c:13194)
[   19.656008][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.656011][  T325]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   19.656013][  T325]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   19.656015][  T325]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.656017][  T325]  ? 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)
[   19.656021][  T325]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   19.656025][  T325]  dev_set_allmulti (net/core/dev_api.c:315)
[   19.656029][  T325] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   19.656043][  T325]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   19.656050][  T325] br_del_if (net/bridge/br_if.c:732) bridge
[   19.656058][  T325]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.656061][  T325]  do_set_master (net/core/rtnetlink.c:3055)
[   19.656065][  T325]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   19.656069][  T325]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   19.656072][  T325]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   19.656074][  T325]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.656076][  T325]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.656080][  T325]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.656082][  T325]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.656084][  T325]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.656087][  T325]  ? kasan_save_stack (mm/kasan/common.c:58)
[   19.656090][  T325]  ? kasan_save_stack (mm/kasan/common.c:57)
[   19.656091][  T325]  ? kasan_save_track (mm/kasan/common.c:78)
[   19.656094][  T325]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.656096][  T325]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   19.656098][  T325]  ? ___sys_sendmsg (net/socket.c:2757)
[   19.656101][  T325]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.656103][  T325]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.656106][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.656108][  T325]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.656110][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.656112][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.656114][  T325]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   19.656117][  T325]  ? __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)
[   19.656119][  T325]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   19.656122][  T325]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   19.656125][  T325]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.656127][  T325]  ? nla_get_range_signed (lib/nlattr.c:270)
[   19.656132][  T325]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   19.656137][  T325]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   19.656142][  T325]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.656144][  T325]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.656149][  T325]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.656150][  T325]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.656152][  T325]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.656154][  T325]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.656158][  T325]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   19.656160][  T325]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.656163][  T325]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.656164][  T325]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.656169][  T325]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.656171][  T325]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.656174][  T325]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.656176][  T325]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.656179][  T325]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.656185][  T325]  ? 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))
[   19.656186][  T325]  ? 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))
[   19.656191][  T325]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.656194][  T325]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.656197][  T325]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.656201][  T325]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.656205][  T325]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.656209][  T325]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   19.656214][  T325]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   19.656216][  T325]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.656218][  T325]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   19.656220][  T325]  ? move_addr_to_kernel (net/socket.c:258)
[   19.656227][  T325]  ___sys_sendmsg (net/socket.c:2767)
[   19.656230][  T325]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.656246][  T325]  __sys_sendmsg (net/socket.c:2799)
[   19.656248][  T325]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.656255][  T325]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.656258][  T325]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.656260][  T325]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.656263][  T325]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.656265][  T325] RIP: 0033:0x7f9a4cd1f54e
[   19.656269][  T325] 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
[   19.656271][  T325] RSP: 002b:00007ffefbb6f0c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.656274][  T325] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9a4cd1f54e
[   19.656280][  T325] RDX: 0000000000000000 RSI: 00007ffefbb6f170 RDI: 0000000000000005
[   19.656281][  T325] RBP: 00007ffefbb6f0d0 R08: 0000000000000000 R09: 0000000000000000
[   19.656282][  T325] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91840f
[   19.656283][  T325] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffefbb6f830
| [   21.787532][  T329] softirqs last disabled at (12598): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.787536][  T329] Preemption disabled at:
| [   21.787537][  T329] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.787550][  T329] Tainted: [W]=WARN
[   21.787551][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.787553][  T329] Call Trace:
[   21.787555][  T329]  <TASK>
[   21.787557][  T329]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.787565][  T329]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.787568][  T329]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.787575][  T329]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.787581][  T329]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.787589][  T329]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.787592][  T329]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.787601][  T329]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.787605][  T329]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.787611][  T329]  put_chars (drivers/char/virtio_console.c:1176)
[   21.787614][  T329]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   21.787617][  T329]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.787622][  T329]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.787628][  T329]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.787632][  T329]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.787638][  T329]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.787642][  T329]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.787645][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.787647][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.787654][  T329]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.787658][  T329]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.787664][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.787667][  T329]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.787674][  T329]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.787681][  T329]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.787683][  T329]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   21.787689][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.787692][  T329]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.787700][  T329]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.787707][  T329]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.787710][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.787719][  T329]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.787724][  T329]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.787726][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.787730][  T329]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.787737][  T329]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.787739][  T329]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.787745][  T329]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.787752][  T329]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.787755][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.787760][  T329]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.787766][  T329]  _printk (kernel/printk/printk.c:2504)
[   21.787772][  T329]  ? snapshot_read.cold (user.c:?)
[   21.787778][  T329]  ? br_multicast_flood (??:?) bridge
[   21.787797][  T329]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.787799][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.787801][  T329]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.787810][  T329] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.787827][  T329] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   21.787841][  T329] new_nbp (net/bridge/br_if.c:449) bridge
[   21.787857][  T329] br_add_if (net/bridge/br_if.c:592) bridge
[   21.787870][  T329]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   21.787876][  T329]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.787880][  T329]  ? __kernel_text_address (kernel/extable.c:79)
[   21.787887][  T329]  do_set_master (net/core/rtnetlink.c:3071)
[   21.787895][  T329]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.787901][  T329]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.787905][  T329]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.787910][  T329]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.787913][  T329]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.787918][  T329]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.787922][  T329]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.787925][  T329]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.787929][  T329]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.787933][  T329]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.787935][  T329]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.787940][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.787943][  T329]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   21.787947][  T329]  ? ___sys_sendmsg (net/socket.c:2757)
[   21.787955][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.787958][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.787963][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.787966][  T329]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.787969][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.787971][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.787975][  T329]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.787981][  T329]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   21.787985][  T329]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.787989][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.787995][  T329]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.787998][  T329]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.788007][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.788017][  T329]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.788027][  T329]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.788031][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.788039][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.788043][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.788046][  T329]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.788049][  T329]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.788056][  T329]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.788060][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.788065][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.788067][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.788076][  T329]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.788079][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.788085][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.788088][  T329]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.788093][  T329]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.788105][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.788107][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.788115][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.788122][  T329]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.788126][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.788134][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.788141][  T329]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.788148][  T329]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   21.788156][  T329]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   21.788160][  T329]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.788164][  T329]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   21.788166][  T329]  ? move_addr_to_kernel (net/socket.c:258)
[   21.788180][  T329]  ___sys_sendmsg (net/socket.c:2767)
[   21.788185][  T329]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.788215][  T329]  __sys_sendmsg (net/socket.c:2799)
[   21.788220][  T329]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.788232][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.788238][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.788241][  T329]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.788246][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.788250][  T329] RIP: 0033:0x7f3bc6aaa54e
[   21.788254][  T329] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.788257][  T329] RSP: 002b:00007fff963ee160 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.788261][  T329] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f3bc6aaa54e
[   21.788263][  T329] RDX: 0000000000000000 RSI: 00007fff963ee210 RDI: 0000000000000005
[   21.788265][  T329] RBP: 00007fff963ee170 R08: 0000000000000000 R09: 0000000000000000
[   21.788266][  T329] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918411
[   21.788268][  T329] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff963ee8d0
| [   24.495721][  T376] softirqs last disabled at (15098): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   24.495730][  T376] Preemption disabled at:
| [   24.495731][  T376] 0x0
| [   24.495741][  T376] Tainted: [W]=WARN
[   24.495742][  T376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.495743][  T376] Call Trace:
[   24.495745][  T376]  <TASK>
[   24.495746][  T376]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.495753][  T376]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.495758][  T376]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.495762][  T376]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.495767][  T376]  __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))
[   24.495770][  T376]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.495775][  T376]  ? 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)
[   24.495778][  T376]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.495782][  T376]  put_chars (drivers/char/virtio_console.c:1176)
[   24.495785][  T376]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.495787][  T376]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.495792][  T376]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.495794][  T376]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.495798][  T376]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.495801][  T376]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.495803][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.495805][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.495809][  T376]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.495810][  T376]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.495815][  T376]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.495819][  T376]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.495823][  T376]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.495825][  T376]  ? 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))
[   24.495828][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.495831][  T376]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.495835][  T376]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.495839][  T376]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.495841][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.495847][  T376]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.495850][  T376]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.495851][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.495854][  T376]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.495858][  T376]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.495860][  T376]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.495863][  T376]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.495867][  T376]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.495869][  T376]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.495872][  T376]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.495875][  T376]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.495878][  T376]  _printk (kernel/printk/printk.c:2504)
[   24.495882][  T376]  ? snapshot_read.cold (user.c:?)
[   24.495890][  T376] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.495902][  T376] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.495915][  T376] br_device_event (net/bridge/br.c:111) bridge
[   24.495922][  T376]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.495927][  T376]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.495933][  T376]  notifier_call_chain (kernel/notifier.c:85)
[   24.495939][  T376]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.495944][  T376]  ? netif_change_name (net/core/dev.c:1517)
[   24.495948][  T376]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.495951][  T376]  ? __kernel_text_address (kernel/extable.c:79)
[   24.495954][  T376]  ? write_profile (profile.c:?)
[   24.495956][  T376]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.495961][  T376]  netif_change_flags (net/core/dev.c:9882)
[   24.495965][  T376]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.495969][  T376]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.495971][  T376]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.495973][  T376]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.495975][  T376]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.495978][  T376]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.495981][  T376]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.495983][  T376]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.495986][  T376]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.495989][  T376]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.495990][  T376]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.495993][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.495995][  T376]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   24.495998][  T376]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.496003][  T376]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.496005][  T376]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.496008][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.496011][  T376]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.496012][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.496014][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.496017][  T376]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.496021][  T376]  ? __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)
[   24.496022][  T376]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.496025][  T376]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.496028][  T376]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.496030][  T376]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.496035][  T376]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.496041][  T376]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.496047][  T376]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.496049][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.496053][  T376]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.496055][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.496057][  T376]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.496059][  T376]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.496063][  T376]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.496065][  T376]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.496069][  T376]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.496070][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.496075][  T376]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.496077][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.496080][  T376]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.496082][  T376]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.496085][  T376]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.496092][  T376]  ? 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))
[   24.496093][  T376]  ? 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))
[   24.496098][  T376]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.496102][  T376]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.496104][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.496109][  T376]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.496113][  T376]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.496117][  T376]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.496123][  T376]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.496125][  T376]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.496127][  T376]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.496129][  T376]  ? move_addr_to_kernel (net/socket.c:258)
[   24.496137][  T376]  ___sys_sendmsg (net/socket.c:2767)
[   24.496140][  T376]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.496156][  T376]  __sys_sendmsg (net/socket.c:2799)
[   24.496159][  T376]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.496166][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.496170][  T376]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.496172][  T376]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.496175][  T376]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.496178][  T376] RIP: 0033:0x7fd13d19954e
[   24.496180][  T376] 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
[   24.496182][  T376] RSP: 002b:00007ffd7a4e7ea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.496185][  T376] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd13d19954e
[   24.496186][  T376] RDX: 0000000000000000 RSI: 00007ffd7a4e7f50 RDI: 0000000000000005
[   24.496187][  T376] RBP: 00007ffd7a4e7eb0 R08: 0000000000000000 R09: 0000000000000000
[   24.496188][  T376] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918413


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
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars