======================================
| [   10.592650][  T223] softirqs last disabled at (29341): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.592653][  T223] Preemption disabled at:
| [   10.592653][  T223] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.592662][  T223] Tainted: [W]=WARN
[   10.592663][  T223] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.592665][  T223] Call Trace:
[   10.592667][  T223]  <TASK>
[   10.592668][  T223]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.592674][  T223]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.592676][  T223]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.592681][  T223]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.592685][  T223]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.592690][  T223]  __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))
[   10.592692][  T223]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.592698][  T223]  ? 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)
[   10.592701][  T223]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.592704][  T223]  put_chars (drivers/char/virtio_console.c:1176)
[   10.592706][  T223]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.592708][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.592712][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.592715][  T223]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.592719][  T223]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.592722][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.592726][  T223]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.592729][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.592734][  T223]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.592737][  T223]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.592739][  T223]  ? 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))
[   10.592742][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.592744][  T223]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.592748][  T223]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.592752][  T223]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.592754][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.592759][  T223]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.592762][  T223]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.592763][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.592765][  T223]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.592769][  T223]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.592771][  T223]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.592774][  T223]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.592778][  T223]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.592783][  T223]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.592786][  T223]  _printk (kernel/printk/printk.c:2504)
[   10.592790][  T223]  ? snapshot_read.cold (user.c:?)
[   10.592796][  T223]  ? 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)
[   10.592799][  T223] 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
[   10.592802][  T223]  do_one_initcall (init/main.c:1357)
[   10.592805][  T223]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.592809][  T223]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.592812][  T223]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.592817][  T223]  do_init_module (kernel/module/main.c:3117)
[   10.592821][  T223]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.592825][  T223]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.592828][  T223]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.592832][  T223]  load_module (kernel/module/main.c:3593)
[   10.592839][  T223]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.592843][  T223]  ? __ia32_sys_fsconfig (??:?)
[   10.592845][  T223]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.592849][  T223]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.592852][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.592856][  T223]  init_module_from_file (kernel/module/main.c:3790)
[   10.592859][  T223]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.592867][  T223]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.592870][  T223]  ? 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)
[   10.592873][  T223]  idempotent_init_module (kernel/module/main.c:3802)
[   10.592877][  T223]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.592883][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.592885][  T223]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.592890][  T223]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.592893][  T223]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.592896][  T223]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.592898][  T223]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.592901][  T223]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.592903][  T223] RIP: 0033:0x7f30b914e37d
[   10.592906][  T223] 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
[   10.592908][  T223] RSP: 002b:00007ffda139ab58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.592911][  T223] RAX: ffffffffffffffda RBX: 0000561968c38810 RCX: 00007f30b914e37d
[   10.592913][  T223] RDX: 0000000000000000 RSI: 000056193b18affd RDI: 0000000000000000
[   10.592913][  T223] RBP: 00007ffda139abf0 R08: 0000000000000000 R09: 0000000000000000
[   10.592914][  T223] R10: 0000000000000000 R11: 0000000000000246 R12: 000056193b18affd
[   10.592915][  T223] R13: 0000561968c38960 R14: 0000000000040000 R15: 0000000000000000
| [   11.906004][  T267] softirqs last disabled at (14356): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.906006][  T267] Preemption disabled at:
| [   11.906007][  T267] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.906016][  T267] Tainted: [W]=WARN
[   11.906017][  T267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.906018][  T267] Call Trace:
[   11.906020][  T267]  <TASK>
[   11.906022][  T267]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.906028][  T267]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.906030][  T267]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.906034][  T267]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.906039][  T267]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.906044][  T267]  __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))
[   11.906046][  T267]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.906052][  T267]  ? 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)
[   11.906055][  T267]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.906058][  T267]  put_chars (drivers/char/virtio_console.c:1176)
[   11.906061][  T267]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.906065][  T267]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.906069][  T267]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.906071][  T267]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.906073][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906075][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906079][  T267]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.906081][  T267]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.906084][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906088][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.906092][  T267]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.906096][  T267]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.906097][  T267]  ? 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))
[   11.906101][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906103][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.906107][  T267]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.906111][  T267]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.906113][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906118][  T267]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.906121][  T267]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.906122][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906125][  T267]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.906128][  T267]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.906130][  T267]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.906133][  T267]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.906137][  T267]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.906140][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.906141][  T267]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.906148][  T267]  _printk (kernel/printk/printk.c:2504)
[   11.906151][  T267]  ? snapshot_read.cold (user.c:?)
[   11.906155][  T267]  ? br_multicast_flood (??:?) bridge
[   11.906168][  T267]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.906169][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.906171][  T267]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.906175][  T267] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.906185][  T267] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.906193][  T267] new_nbp (net/bridge/br_if.c:449) bridge
[   11.906202][  T267] br_add_if (net/bridge/br_if.c:592) bridge
[   11.906209][  T267]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.906213][  T267]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.906216][  T267]  ? __kernel_text_address (kernel/extable.c:79)
[   11.906220][  T267]  do_set_master (net/core/rtnetlink.c:3071)
[   11.906224][  T267]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.906227][  T267]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.906230][  T267]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.906232][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.906234][  T267]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.906237][  T267]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.906240][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.906242][  T267]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.906244][  T267]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.906248][  T267]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.906249][  T267]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.906252][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906254][  T267]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.906259][  T267]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.906264][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.906266][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.906268][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906270][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.906272][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906274][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906276][  T267]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.906280][  T267]  ? __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)
[   11.906281][  T267]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.906283][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.906287][  T267]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.906288][  T267]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.906293][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.906298][  T267]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.906303][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.906305][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906310][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.906311][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.906313][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.906315][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.906319][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.906321][  T267]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.906324][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.906325][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906329][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.906331][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.906335][  T267]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.906337][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.906339][  T267]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.906345][  T267]  ? 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))
[   11.906347][  T267]  ? 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))
[   11.906351][  T267]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.906355][  T267]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.906357][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.906361][  T267]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.906365][  T267]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.906369][  T267]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.906374][  T267]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.906376][  T267]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.906378][  T267]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.906380][  T267]  ? move_addr_to_kernel (net/socket.c:258)
[   11.906387][  T267]  ___sys_sendmsg (net/socket.c:2767)
[   11.906390][  T267]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.906405][  T267]  __sys_sendmsg (net/socket.c:2799)
[   11.906408][  T267]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.906414][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.906418][  T267]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.906420][  T267]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.906423][  T267]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.906425][  T267] RIP: 0033:0x7f7a66cf854e
[   11.906429][  T267] 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
[   11.906430][  T267] RSP: 002b:00007ffda5b00940 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.906433][  T267] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f7a66cf854e
[   11.906435][  T267] RDX: 0000000000000000 RSI: 00007ffda5b009f0 RDI: 0000000000000005
[   11.906435][  T267] RBP: 00007ffda5b00950 R08: 0000000000000000 R09: 0000000000000000
[   11.906436][  T267] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910d91
[   11.906437][  T267] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffda5b010b0
| [   22.180100][  T352] softirqs last disabled at (15292): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.180103][  T352] Preemption disabled at:
| [   22.180103][  T352] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.180113][  T352] Tainted: [W]=WARN
[   22.180114][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.180115][  T352] Call Trace:
[   22.180117][  T352]  <TASK>
[   22.180118][  T352]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.180124][  T352]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.180126][  T352]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.180131][  T352]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.180135][  T352]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.180140][  T352]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.180142][  T352]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.180148][  T352]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.180150][  T352]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.180153][  T352]  put_chars (drivers/char/virtio_console.c:1176)
[   22.180156][  T352]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.180157][  T352]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.180162][  T352]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.180167][  T352]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.180173][  T352]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.180175][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180178][  T352]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.180181][  T352]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.180185][  T352]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.180187][  T352]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.180190][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180192][  T352]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.180196][  T352]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.180200][  T352]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.180202][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.180207][  T352]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.180210][  T352]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.180212][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180214][  T352]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.180217][  T352]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.180219][  T352]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.180222][  T352]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.180226][  T352]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.180228][  T352]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.180229][  T352]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.180232][  T352]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.180234][  T352]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.180236][  T352]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.180238][  T352]  ? __sys_sendmsg (net/socket.c:2799)
[   22.180240][  T352]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.180244][  T352]  _printk (kernel/printk/printk.c:2504)
[   22.180248][  T352]  ? snapshot_read.cold (user.c:?)
[   22.180253][  T352]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.180259][  T352]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.180262][  T352]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.180265][  T352]  ? netdev_notice (net/core/dev.c:13194)
[   22.180268][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180271][  T352]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.180273][  T352]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.180275][  T352]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.180277][  T352]  ? 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)
[   22.180280][  T352]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.180285][  T352]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.180288][  T352] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   22.180302][  T352]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.180308][  T352] br_del_if (net/bridge/br_if.c:732) bridge
[   22.180315][  T352]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.180318][  T352]  do_set_master (net/core/rtnetlink.c:3055)
[   22.180322][  T352]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.180326][  T352]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.180329][  T352]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.180330][  T352]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.180333][  T352]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.180336][  T352]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.180338][  T352]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.180340][  T352]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.180343][  T352]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.180346][  T352]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.180347][  T352]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.180350][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.180352][  T352]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.180353][  T352]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.180357][  T352]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.180359][  T352]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.180361][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180364][  T352]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.180365][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180367][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180369][  T352]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.180372][  T352]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.180374][  T352]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.180376][  T352]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.180379][  T352]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.180381][  T352]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.180386][  T352]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.180391][  T352]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.180396][  T352]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.180398][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.180402][  T352]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.180404][  T352]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.180406][  T352]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.180408][  T352]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.180411][  T352]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.180413][  T352]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.180416][  T352]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.180417][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.180422][  T352]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.180423][  T352]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.180427][  T352]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.180428][  T352]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.180431][  T352]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.180437][  T352]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.180438][  T352]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.180443][  T352]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.180446][  T352]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.180449][  T352]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.180453][  T352]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.180456][  T352]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.180460][  T352]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.180465][  T352]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.180467][  T352]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.180469][  T352]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.180471][  T352]  ? move_addr_to_kernel (net/socket.c:258)
[   22.180478][  T352]  ___sys_sendmsg (net/socket.c:2767)
[   22.180481][  T352]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.180496][  T352]  __sys_sendmsg (net/socket.c:2799)
[   22.180499][  T352]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.180505][  T352]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.180508][  T352]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.180510][  T352]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.180513][  T352]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.180520][  T352] RIP: 0033:0x7fde959c454e
[   22.180524][  T352] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.180526][  T352] RSP: 002b:00007ffeb6738260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.180529][  T352] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fde959c454e
[   22.180530][  T352] RDX: 0000000000000000 RSI: 00007ffeb6738310 RDI: 0000000000000005
[   22.180531][  T352] RBP: 00007ffeb6738270 R08: 0000000000000000 R09: 0000000000000000
[   22.180532][  T352] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910d9b
[   22.180533][  T352] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb67389d0
| [   24.301714][  T355] softirqs last disabled at (14165): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   24.301717][  T355] Preemption disabled at:
| [   24.301717][  T355] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.301727][  T355] Tainted: [W]=WARN
[   24.301728][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.301729][  T355] Call Trace:
[   24.301731][  T355]  <TASK>
[   24.301733][  T355]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.301739][  T355]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.301741][  T355]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.301746][  T355]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.301749][  T355]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.301755][  T355]  __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))
[   24.301757][  T355]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.301763][  T355]  ? 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)
[   24.301765][  T355]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.301768][  T355]  put_chars (drivers/char/virtio_console.c:1176)
[   24.301770][  T355]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   24.301773][  T355]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.301776][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.301780][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.301782][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.301786][  T355]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.301789][  T355]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.301791][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301792][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301796][  T355]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.301798][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   24.301801][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301803][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.301807][  T355]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.301811][  T355]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.301813][  T355]  ? 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))
[   24.301816][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301818][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.301822][  T355]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.301827][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.301829][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301834][  T355]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.301836][  T355]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.301838][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301841][  T355]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.301844][  T355]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.301846][  T355]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.301849][  T355]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.301853][  T355]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.301856][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.301860][  T355]  _printk (kernel/printk/printk.c:2504)
[   24.301864][  T355]  ? snapshot_read.cold (user.c:?)
[   24.301868][  T355]  ? br_multicast_flood (??:?) bridge
[   24.301881][  T355]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.301882][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.301883][  T355]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.301888][  T355] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.301898][  T355] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   24.301906][  T355] new_nbp (net/bridge/br_if.c:449) bridge
[   24.301915][  T355] br_add_if (net/bridge/br_if.c:592) bridge
[   24.301922][  T355]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062)
[   24.301925][  T355]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.301933][  T355]  do_set_master (net/core/rtnetlink.c:3071)
[   24.301937][  T355]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.301941][  T355]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.301944][  T355]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.301945][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.301947][  T355]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.301951][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.301953][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.301955][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.301958][  T355]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.301961][  T355]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.301963][  T355]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.301966][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301969][  T355]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.301972][  T355]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.301976][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.301978][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.301981][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301983][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.301985][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301986][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301989][  T355]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.301993][  T355]  ? __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)
[   24.301995][  T355]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.301997][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.302000][  T355]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.302002][  T355]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.302007][  T355]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.302012][  T355]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.302017][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.302019][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.302024][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.302026][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.302028][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.302029][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.302033][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.302035][  T355]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.302038][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.302039][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.302044][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.302045][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.302049][  T355]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.302051][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.302053][  T355]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.302060][  T355]  ? 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))
[   24.302061][  T355]  ? 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))
[   24.302065][  T355]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.302069][  T355]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.302072][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.302076][  T355]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.302079][  T355]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.302083][  T355]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.302088][  T355]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.302090][  T355]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.302093][  T355]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.302094][  T355]  ? move_addr_to_kernel (net/socket.c:258)
[   24.302102][  T355]  ___sys_sendmsg (net/socket.c:2767)
[   24.302104][  T355]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.302120][  T355]  __sys_sendmsg (net/socket.c:2799)
[   24.302123][  T355]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.302129][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.302133][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.302135][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.302138][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.302140][  T355] RIP: 0033:0x7f9b9623d54e
[   24.302144][  T355] 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
[   24.302146][  T355] RSP: 002b:00007ffff0694c00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.302148][  T355] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9b9623d54e
[   24.302150][  T355] RDX: 0000000000000000 RSI: 00007ffff0694cb0 RDI: 0000000000000005
[   24.302151][  T355] RBP: 00007ffff0694c10 R08: 0000000000000000 R09: 0000000000000000
[   24.302151][  T355] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910d9d
[   24.302152][  T355] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff0695370
| [   28.913077][  T408] softirqs last disabled at (18616): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   28.913079][  T408] Preemption disabled at:
| [   28.913080][  T408] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.913089][  T408] Tainted: [W]=WARN
[   28.913090][  T408] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.913092][  T408] Call Trace:
[   28.913093][  T408]  <TASK>
[   28.913095][  T408]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.913101][  T408]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.913103][  T408]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.913107][  T408]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.913111][  T408]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.913117][  T408]  __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))
[   28.913119][  T408]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.913125][  T408]  ? 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)
[   28.913127][  T408]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.913131][  T408]  put_chars (drivers/char/virtio_console.c:1176)
[   28.913133][  T408]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.913135][  T408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.913139][  T408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.913145][  T408]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.913151][  T408]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.913153][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913155][  T408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.913159][  T408]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.913163][  T408]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.913165][  T408]  ? 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))
[   28.913168][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913171][  T408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.913175][  T408]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.913179][  T408]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.913181][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.913186][  T408]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.913189][  T408]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.913191][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913193][  T408]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.913197][  T408]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.913198][  T408]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.913202][  T408]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.913205][  T408]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.913207][  T408]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.913209][  T408]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.913212][  T408]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.913213][  T408]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   28.913216][  T408]  ? ___sys_sendmsg (net/socket.c:2767)
[   28.913218][  T408]  ? __sys_sendmsg (net/socket.c:2799)
[   28.913220][  T408]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.913224][  T408]  _printk (kernel/printk/printk.c:2504)
[   28.913229][  T408]  ? snapshot_read.cold (user.c:?)
[   28.913233][  T408]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.913237][  T408]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.913240][  T408]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.913243][  T408]  ? netdev_notice (net/core/dev.c:13194)
[   28.913247][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913249][  T408]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.913252][  T408]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.913253][  T408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.913258][  T408]  ? 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)
[   28.913262][  T408]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.913267][  T408]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.913270][  T408] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   28.913283][  T408]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   28.913290][  T408] br_del_if (net/bridge/br_if.c:732) bridge
[   28.913297][  T408]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   28.913300][  T408]  do_set_master (net/core/rtnetlink.c:3055)
[   28.913305][  T408]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   28.913308][  T408]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.913311][  T408]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.913313][  T408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.913315][  T408]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.913319][  T408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.913322][  T408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.913323][  T408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.913326][  T408]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.913329][  T408]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.913331][  T408]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.913334][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.913336][  T408]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   28.913337][  T408]  ? ___sys_sendmsg (net/socket.c:2757)
[   28.913341][  T408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.913343][  T408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.913345][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913348][  T408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.913349][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913351][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913353][  T408]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.913356][  T408]  ? __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)
[   28.913359][  T408]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.913361][  T408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.913364][  T408]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.913366][  T408]  ? nla_get_range_signed (lib/nlattr.c:270)
[   28.913371][  T408]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.913376][  T408]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.913381][  T408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.913383][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.913387][  T408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.913389][  T408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.913392][  T408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.913393][  T408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.913397][  T408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.913399][  T408]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.913402][  T408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.913404][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.913408][  T408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.913410][  T408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.913413][  T408]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.913415][  T408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.913418][  T408]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.913424][  T408]  ? 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))
[   28.913426][  T408]  ? 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))
[   28.913430][  T408]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.913433][  T408]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.913436][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.913440][  T408]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.913444][  T408]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.913448][  T408]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   28.913453][  T408]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   28.913456][  T408]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.913458][  T408]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   28.913459][  T408]  ? move_addr_to_kernel (net/socket.c:258)
[   28.913467][  T408]  ___sys_sendmsg (net/socket.c:2767)
[   28.913469][  T408]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.913485][  T408]  __sys_sendmsg (net/socket.c:2799)
[   28.913488][  T408]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.913494][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.913498][  T408]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.913499][  T408]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.913503][  T408]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.913505][  T408] RIP: 0033:0x7fb65398e54e
[   28.913509][  T408] 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
[   28.913510][  T408] RSP: 002b:00007ffdbf13d530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.913513][  T408] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb65398e54e
[   28.913515][  T408] RDX: 0000000000000000 RSI: 00007ffdbf13d5e0 RDI: 0000000000000005
[   28.913516][  T408] RBP: 00007ffdbf13d540 R08: 0000000000000000 R09: 0000000000000000
[   28.913516][  T408] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910da2


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars