======================================
| [   10.974252][  T225] softirqs last disabled at (34307): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.974254][  T225] Preemption disabled at:
| [   10.974255][  T225] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.974265][  T225] Tainted: [W]=WARN
[   10.974266][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.974267][  T225] Call Trace:
[   10.974269][  T225]  <TASK>
[   10.974271][  T225]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.974276][  T225]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.974278][  T225]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.974283][  T225]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.974287][  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)
[   10.974292][  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))
[   10.974294][  T225]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.974300][  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)
[   10.974303][  T225]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.974306][  T225]  put_chars (drivers/char/virtio_console.c:1176)
[   10.974309][  T225]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.974311][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.974315][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.974318][  T225]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.974322][  T225]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.974325][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.974330][  T225]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.974333][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.974338][  T225]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.974342][  T225]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.974343][  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))
[   10.974347][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.974349][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.974353][  T225]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.974357][  T225]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.974359][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.974364][  T225]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.974367][  T225]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.974369][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.974372][  T225]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.974375][  T225]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.974377][  T225]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.974380][  T225]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.974384][  T225]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.974390][  T225]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.974394][  T225]  _printk (kernel/printk/printk.c:2504)
[   10.974397][  T225]  ? snapshot_read.cold (user.c:?)
[   10.974404][  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)
[   10.974407][  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
[   10.974410][  T225]  do_one_initcall (init/main.c:1357)
[   10.974413][  T225]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.974417][  T225]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.974420][  T225]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.974425][  T225]  do_init_module (kernel/module/main.c:3117)
[   10.974429][  T225]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.974433][  T225]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.974436][  T225]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.974441][  T225]  load_module (kernel/module/main.c:3593)
[   10.974448][  T225]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.974452][  T225]  ? __ia32_sys_fsconfig (??:?)
[   10.974455][  T225]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.974459][  T225]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.974462][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.974466][  T225]  init_module_from_file (kernel/module/main.c:3790)
[   10.974469][  T225]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.974477][  T225]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.974481][  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)
[   10.974484][  T225]  idempotent_init_module (kernel/module/main.c:3802)
[   10.974488][  T225]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.974494][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.974497][  T225]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.974502][  T225]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.974505][  T225]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.974508][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.974510][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.974513][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.974516][  T225] RIP: 0033:0x7f6dad04437d
[   10.974519][  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
[   10.974521][  T225] RSP: 002b:00007ffd944d6f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.974524][  T225] RAX: ffffffffffffffda RBX: 0000563f3b2a8810 RCX: 00007f6dad04437d
[   10.974525][  T225] RDX: 0000000000000000 RSI: 0000563f0c539ffd RDI: 0000000000000000
[   10.974526][  T225] RBP: 00007ffd944d6fa0 R08: 0000000000000000 R09: 0000000000000000
[   10.974527][  T225] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563f0c539ffd
[   10.974528][  T225] R13: 0000563f3b2a8960 R14: 0000000000040000 R15: 0000000000000000
| [   12.425212][  T270] softirqs last disabled at (21060): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.425216][  T270] Preemption disabled at:
| [   12.425216][  T270] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.425229][  T270] Tainted: [W]=WARN
[   12.425230][  T270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.425232][  T270] Call Trace:
[   12.425235][  T270]  <TASK>
[   12.425237][  T270]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.425244][  T270]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.425248][  T270]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.425254][  T270]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.425260][  T270]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.425268][  T270]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.425271][  T270]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.425280][  T270]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.425284][  T270]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.425289][  T270]  put_chars (drivers/char/virtio_console.c:1176)
[   12.425294][  T270]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.425302][  T270]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.425309][  T270]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.425313][  T270]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.425316][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425318][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425325][  T270]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.425329][  T270]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.425335][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425340][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.425347][  T270]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.425353][  T270]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.425356][  T270]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.425361][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425365][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.425372][  T270]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.425379][  T270]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.425382][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425392][  T270]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.425396][  T270]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.425399][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425403][  T270]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.425410][  T270]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.425412][  T270]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.425418][  T270]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.425425][  T270]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.425428][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.425431][  T270]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.425441][  T270]  _printk (kernel/printk/printk.c:2504)
[   12.425446][  T270]  ? snapshot_read.cold (user.c:?)
[   12.425453][  T270]  ? br_multicast_flood (??:?) bridge
[   12.425471][  T270]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.425473][  T270]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.425475][  T270]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.425484][  T270] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.425502][  T270] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.425516][  T270] new_nbp (net/bridge/br_if.c:449) bridge
[   12.425532][  T270] br_add_if (net/bridge/br_if.c:592) bridge
[   12.425545][  T270]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.425550][  T270]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.425555][  T270]  ? __kernel_text_address (kernel/extable.c:79)
[   12.425562][  T270]  do_set_master (net/core/rtnetlink.c:3071)
[   12.425569][  T270]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.425575][  T270]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.425582][  T270]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.425584][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.425588][  T270]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.425593][  T270]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.425597][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.425600][  T270]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.425604][  T270]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.425608][  T270]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.425611][  T270]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.425615][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425618][  T270]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.425622][  T270]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.425630][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.425633][  T270]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.425637][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425641][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.425644][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425646][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425650][  T270]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.425656][  T270]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.425658][  T270]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.425662][  T270]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.425668][  T270]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.425671][  T270]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.425680][  T270]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.425690][  T270]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.425700][  T270]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.425703][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425711][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.425714][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.425717][  T270]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.425721][  T270]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.425727][  T270]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.425731][  T270]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.425737][  T270]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.425739][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425747][  T270]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.425750][  T270]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.425755][  T270]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.425758][  T270]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.425763][  T270]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.425774][  T270]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.425777][  T270]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.425784][  T270]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.425791][  T270]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.425795][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.425803][  T270]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.425810][  T270]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.425817][  T270]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.425825][  T270]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.425829][  T270]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.425833][  T270]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.425835][  T270]  ? move_addr_to_kernel (net/socket.c:258)
[   12.425849][  T270]  ___sys_sendmsg (net/socket.c:2767)
[   12.425854][  T270]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.425885][  T270]  __sys_sendmsg (net/socket.c:2799)
[   12.425890][  T270]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.425901][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.425908][  T270]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.425911][  T270]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.425916][  T270]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.425920][  T270] RIP: 0033:0x7fb17e75854e
[   12.425924][  T270] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.425927][  T270] RSP: 002b:00007ffee3fa8cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.425931][  T270] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb17e75854e
[   12.425933][  T270] RDX: 0000000000000000 RSI: 00007ffee3fa8da0 RDI: 0000000000000005
[   12.425934][  T270] RBP: 00007ffee3fa8d00 R08: 0000000000000000 R09: 0000000000000000
[   12.425936][  T270] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9157f6
[   12.425937][  T270] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee3fa9460
| [   22.855499][  T353] softirqs last disabled at (14366): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.855501][  T353] Preemption disabled at:
| [   22.855502][  T353] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.855511][  T353] Tainted: [W]=WARN
[   22.855512][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.855514][  T353] Call Trace:
[   22.855516][  T353]  <TASK>
[   22.855517][  T353]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.855523][  T353]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.855525][  T353]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.855530][  T353]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.855534][  T353]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.855539][  T353]  __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))
[   22.855542][  T353]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.855547][  T353]  ? 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)
[   22.855550][  T353]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.855553][  T353]  put_chars (drivers/char/virtio_console.c:1176)
[   22.855556][  T353]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.855557][  T353]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.855562][  T353]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.855567][  T353]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.855574][  T353]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.855576][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855580][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.855584][  T353]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.855588][  T353]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.855590][  T353]  ? 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))
[   22.855593][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855595][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.855599][  T353]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.855603][  T353]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.855605][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.855610][  T353]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.855612][  T353]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.855614][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855616][  T353]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.855620][  T353]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.855622][  T353]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.855625][  T353]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.855628][  T353]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.855630][  T353]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.855632][  T353]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.855635][  T353]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.855637][  T353]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.855639][  T353]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.855641][  T353]  ? __sys_sendmsg (net/socket.c:2799)
[   22.855643][  T353]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.855647][  T353]  _printk (kernel/printk/printk.c:2504)
[   22.855651][  T353]  ? snapshot_read.cold (user.c:?)
[   22.855655][  T353]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.855659][  T353]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.855662][  T353]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.855665][  T353]  ? netdev_notice (net/core/dev.c:13194)
[   22.855668][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855671][  T353]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.855674][  T353]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.855675][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.855677][  T353]  ? 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)
[   22.855681][  T353]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.855685][  T353]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.855689][  T353] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   22.855702][  T353]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.855708][  T353] br_del_if (net/bridge/br_if.c:732) bridge
[   22.855716][  T353]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.855719][  T353]  do_set_master (net/core/rtnetlink.c:3055)
[   22.855723][  T353]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.855726][  T353]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.855729][  T353]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.855731][  T353]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.855733][  T353]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.855737][  T353]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.855739][  T353]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.855741][  T353]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.855744][  T353]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.855747][  T353]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.855748][  T353]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.855751][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.855753][  T353]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.855755][  T353]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.855758][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.855760][  T353]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.855762][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855765][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.855766][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855768][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855770][  T353]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.855773][  T353]  ? __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)
[   22.855775][  T353]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.855777][  T353]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.855780][  T353]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.855782][  T353]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.855787][  T353]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.855792][  T353]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.855797][  T353]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.855799][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.855803][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.855805][  T353]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.855807][  T353]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.855809][  T353]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.855813][  T353]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.855815][  T353]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.855818][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.855819][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.855823][  T353]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.855825][  T353]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.855828][  T353]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.855830][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.855833][  T353]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.855839][  T353]  ? 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))
[   22.855840][  T353]  ? 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))
[   22.855844][  T353]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.855848][  T353]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.855850][  T353]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.855854][  T353]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.855858][  T353]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.855861][  T353]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.855867][  T353]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.855869][  T353]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.855871][  T353]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.855873][  T353]  ? move_addr_to_kernel (net/socket.c:258)
[   22.855880][  T353]  ___sys_sendmsg (net/socket.c:2767)
[   22.855882][  T353]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.855897][  T353]  __sys_sendmsg (net/socket.c:2799)
[   22.855900][  T353]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.855906][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.855910][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.855911][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.855914][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.855916][  T353] RIP: 0033:0x7f543524c54e
[   22.855920][  T353] 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
[   22.855922][  T353] RSP: 002b:00007ffe2b92a0d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.855925][  T353] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f543524c54e
[   22.855926][  T353] RDX: 0000000000000000 RSI: 00007ffe2b92a180 RDI: 0000000000000005
[   22.855927][  T353] RBP: 00007ffe2b92a0e0 R08: 0000000000000000 R09: 0000000000000000
[   22.855928][  T353] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915801
[   22.855929][  T353] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe2b92a840
| [   24.989642][  T356] softirqs last disabled at (14090): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.989644][  T356] Preemption disabled at:
| [   24.989645][  T356] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.989654][  T356] Tainted: [W]=WARN
[   24.989655][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.989657][  T356] Call Trace:
[   24.989659][  T356]  <TASK>
[   24.989661][  T356]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.989667][  T356]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.989669][  T356]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.989673][  T356]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.989677][  T356]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.989682][  T356]  __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))
[   24.989685][  T356]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.989690][  T356]  ? 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)
[   24.989693][  T356]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.989696][  T356]  put_chars (drivers/char/virtio_console.c:1176)
[   24.989698][  T356]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   24.989701][  T356]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.989704][  T356]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.989708][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.989711][  T356]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.989714][  T356]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.989717][  T356]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.989719][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989721][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989724][  T356]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.989726][  T356]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   24.989729][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.989732][  T356]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.989735][  T356]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.989739][  T356]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.989741][  T356]  ? 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))
[   24.989744][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.989746][  T356]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.989750][  T356]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.989754][  T356]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.989756][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989761][  T356]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.989764][  T356]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.989765][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.989768][  T356]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.989771][  T356]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.989773][  T356]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.989776][  T356]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.989780][  T356]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.989783][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.989787][  T356]  _printk (kernel/printk/printk.c:2504)
[   24.989791][  T356]  ? snapshot_read.cold (user.c:?)
[   24.989795][  T356]  ? br_multicast_flood (??:?) bridge
[   24.989809][  T356]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.989810][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.989811][  T356]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.989816][  T356] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.989826][  T356] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   24.989834][  T356] new_nbp (net/bridge/br_if.c:449) bridge
[   24.989843][  T356] br_add_if (net/bridge/br_if.c:592) bridge
[   24.989850][  T356]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.989854][  T356]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.989857][  T356]  ? __kernel_text_address (kernel/extable.c:79)
[   24.989861][  T356]  do_set_master (net/core/rtnetlink.c:3071)
[   24.989866][  T356]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.989869][  T356]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.989872][  T356]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.989873][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.989875][  T356]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.989879][  T356]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.989881][  T356]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.989883][  T356]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.989885][  T356]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.989888][  T356]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.989890][  T356]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.989893][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989894][  T356]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   24.989898][  T356]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.989902][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.989904][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.989906][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.989909][  T356]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.989910][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.989912][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.989914][  T356]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.989918][  T356]  ? __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)
[   24.989920][  T356]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.989922][  T356]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.989925][  T356]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.989927][  T356]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.989932][  T356]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.989937][  T356]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.989942][  T356]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.989944][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989948][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.989950][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.989952][  T356]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.989954][  T356]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.989957][  T356]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.989959][  T356]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.989962][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.989963][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989968][  T356]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.989970][  T356]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.989973][  T356]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.989975][  T356]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.989978][  T356]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.989983][  T356]  ? 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))
[   24.989985][  T356]  ? 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))
[   24.989989][  T356]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.989993][  T356]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.989995][  T356]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.989999][  T356]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.990003][  T356]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.990007][  T356]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.990012][  T356]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.990014][  T356]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.990016][  T356]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.990018][  T356]  ? move_addr_to_kernel (net/socket.c:258)
[   24.990025][  T356]  ___sys_sendmsg (net/socket.c:2767)
[   24.990028][  T356]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.990043][  T356]  __sys_sendmsg (net/socket.c:2799)
[   24.990045][  T356]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.990051][  T356]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.990055][  T356]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.990057][  T356]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.990060][  T356]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.990062][  T356] RIP: 0033:0x7faffc82e54e
[   24.990066][  T356] 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
[   24.990068][  T356] RSP: 002b:00007ffee9cab730 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.990071][  T356] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007faffc82e54e
[   24.990072][  T356] RDX: 0000000000000000 RSI: 00007ffee9cab7e0 RDI: 0000000000000005
[   24.990073][  T356] RBP: 00007ffee9cab740 R08: 0000000000000000 R09: 0000000000000000
[   24.990074][  T356] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915803
[   24.990075][  T356] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee9cabea0
| [   29.645702][  T409] softirqs last disabled at (17856): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   29.645705][  T409] Preemption disabled at:
| [   29.645705][  T409] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.645714][  T409] Tainted: [W]=WARN
[   29.645715][  T409] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.645717][  T409] Call Trace:
[   29.645719][  T409]  <TASK>
[   29.645720][  T409]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.645726][  T409]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.645729][  T409]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.645733][  T409]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.645737][  T409]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.645742][  T409]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.645744][  T409]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.645750][  T409]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.645752][  T409]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.645756][  T409]  put_chars (drivers/char/virtio_console.c:1176)
[   29.645758][  T409]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.645760][  T409]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.645765][  T409]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.645769][  T409]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.645775][  T409]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.645778][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645780][  T409]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.645784][  T409]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.645788][  T409]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.645789][  T409]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.645793][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645795][  T409]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.645799][  T409]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.645803][  T409]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.645804][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.645809][  T409]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.645812][  T409]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.645814][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645816][  T409]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.645820][  T409]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.645821][  T409]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.645825][  T409]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.645828][  T409]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.645830][  T409]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.645832][  T409]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.645835][  T409]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.645836][  T409]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.645839][  T409]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.645840][  T409]  ? __sys_sendmsg (net/socket.c:2799)
[   29.645842][  T409]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.645847][  T409]  _printk (kernel/printk/printk.c:2504)
[   29.645850][  T409]  ? snapshot_read.cold (user.c:?)
[   29.645854][  T409]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.645858][  T409]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.645861][  T409]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.645864][  T409]  ? netdev_notice (net/core/dev.c:13194)
[   29.645867][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645870][  T409]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.645872][  T409]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.645873][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.645876][  T409]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.645879][  T409]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.645883][  T409]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.645887][  T409] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   29.645900][  T409]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.645906][  T409] br_del_if (net/bridge/br_if.c:732) bridge
[   29.645913][  T409]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.645916][  T409]  do_set_master (net/core/rtnetlink.c:3055)
[   29.645920][  T409]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.645923][  T409]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.645927][  T409]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.645928][  T409]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.645931][  T409]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.645934][  T409]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.645937][  T409]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.645938][  T409]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.645941][  T409]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.645944][  T409]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.645945][  T409]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.645948][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.645950][  T409]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   29.645952][  T409]  ? ___sys_sendmsg (net/socket.c:2757)
[   29.645955][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.645957][  T409]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.645959][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645962][  T409]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.645963][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645965][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.645967][  T409]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.645970][  T409]  ? __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)
[   29.645972][  T409]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.645974][  T409]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.645978][  T409]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.645979][  T409]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.645984][  T409]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.645993][  T409]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.645999][  T409]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.646001][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.646005][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.646007][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.646009][  T409]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.646011][  T409]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.646014][  T409]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.646016][  T409]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.646019][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.646021][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.646025][  T409]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.646027][  T409]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.646030][  T409]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.646031][  T409]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.646034][  T409]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.646040][  T409]  ? 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))
[   29.646041][  T409]  ? 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))
[   29.646046][  T409]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.646049][  T409]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.646052][  T409]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.646056][  T409]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.646059][  T409]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.646063][  T409]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   29.646068][  T409]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.646070][  T409]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.646073][  T409]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.646074][  T409]  ? move_addr_to_kernel (net/socket.c:258)
[   29.646081][  T409]  ___sys_sendmsg (net/socket.c:2767)
[   29.646084][  T409]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.646099][  T409]  __sys_sendmsg (net/socket.c:2799)
[   29.646102][  T409]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.646108][  T409]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.646111][  T409]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.646113][  T409]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.646116][  T409]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.646118][  T409] RIP: 0033:0x7fa3d8f4754e
[   29.646121][  T409] 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
[   29.646123][  T409] RSP: 002b:00007ffef40c0e30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.646126][  T409] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa3d8f4754e
[   29.646127][  T409] RDX: 0000000000000000 RSI: 00007ffef40c0ee0 RDI: 0000000000000005
[   29.646128][  T409] RBP: 00007ffef40c0e40 R08: 0000000000000000 R09: 0000000000000000
[   29.646129][  T409] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915808


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