======================================
| [   11.523511][  T223] softirqs last disabled at (29021): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.523513][  T223] Preemption disabled at:
| [   11.523513][  T223] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.523523][  T223] Tainted: [W]=WARN
[   11.523524][  T223] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.523526][  T223] Call Trace:
[   11.523527][  T223]  <TASK>
[   11.523529][  T223]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.523534][  T223]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.523537][  T223]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.523541][  T223]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.523545][  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)
[   11.523550][  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))
[   11.523552][  T223]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.523558][  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)
[   11.523560][  T223]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.523563][  T223]  put_chars (drivers/char/virtio_console.c:1176)
[   11.523566][  T223]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.523568][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.523572][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.523574][  T223]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.523579][  T223]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.523581][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.523586][  T223]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.523589][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.523594][  T223]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.523597][  T223]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.523599][  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))
[   11.523602][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.523604][  T223]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.523612][  T223]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.523616][  T223]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.523617][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.523622][  T223]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.523625][  T223]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.523627][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.523629][  T223]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.523632][  T223]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.523634][  T223]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.523637][  T223]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.523641][  T223]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.523647][  T223]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.523651][  T223]  _printk (kernel/printk/printk.c:2504)
[   11.523655][  T223]  ? snapshot_read.cold (user.c:?)
[   11.523661][  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)
[   11.523664][  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
[   11.523667][  T223]  do_one_initcall (init/main.c:1357)
[   11.523670][  T223]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.523674][  T223]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.523677][  T223]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.523682][  T223]  do_init_module (kernel/module/main.c:3117)
[   11.523685][  T223]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.523689][  T223]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.523692][  T223]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.523696][  T223]  load_module (kernel/module/main.c:3593)
[   11.523703][  T223]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.523707][  T223]  ? __ia32_sys_fsconfig (??:?)
[   11.523710][  T223]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.523714][  T223]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.523717][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.523720][  T223]  init_module_from_file (kernel/module/main.c:3790)
[   11.523723][  T223]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.523731][  T223]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.523735][  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)
[   11.523738][  T223]  idempotent_init_module (kernel/module/main.c:3802)
[   11.523741][  T223]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.523747][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.523749][  T223]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.523755][  T223]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.523757][  T223]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.523761][  T223]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.523763][  T223]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.523765][  T223]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.523768][  T223] RIP: 0033:0x7f9333ca137d
[   11.523771][  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
[   11.523773][  T223] RSP: 002b:00007ffe1c021fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.523776][  T223] RAX: ffffffffffffffda RBX: 0000559d3ba6f810 RCX: 00007f9333ca137d
[   11.523777][  T223] RDX: 0000000000000000 RSI: 0000559d0eb13ffd RDI: 0000000000000000
[   11.523778][  T223] RBP: 00007ffe1c022080 R08: 0000000000000000 R09: 0000000000000000
[   11.523779][  T223] R10: 0000000000000000 R11: 0000000000000246 R12: 0000559d0eb13ffd
[   11.523780][  T223] R13: 0000559d3ba6f960 R14: 0000000000040000 R15: 0000000000000000
| [   12.899827][  T267] softirqs last disabled at (11412): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.899830][  T267] Preemption disabled at:
| [   12.899830][  T267] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.899840][  T267] Tainted: [W]=WARN
[   12.899841][  T267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.899842][  T267] Call Trace:
[   12.899844][  T267]  <TASK>
[   12.899845][  T267]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.899851][  T267]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.899853][  T267]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.899858][  T267]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.899862][  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)
[   12.899867][  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))
[   12.899869][  T267]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.899875][  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)
[   12.899878][  T267]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.899881][  T267]  put_chars (drivers/char/virtio_console.c:1176)
[   12.899884][  T267]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.899888][  T267]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.899892][  T267]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.899895][  T267]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.899896][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.899898][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.899902][  T267]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.899904][  T267]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.899907][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.899911][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.899915][  T267]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.899919][  T267]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.899920][  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))
[   12.899924][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.899926][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.899930][  T267]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.899934][  T267]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.899936][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.899941][  T267]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.899944][  T267]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.899946][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.899948][  T267]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.899951][  T267]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.899953][  T267]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.899957][  T267]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.899960][  T267]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.899963][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.899964][  T267]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.899971][  T267]  _printk (kernel/printk/printk.c:2504)
[   12.899975][  T267]  ? snapshot_read.cold (user.c:?)
[   12.899978][  T267]  ? br_multicast_flood (??:?) bridge
[   12.899991][  T267]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.899993][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.899994][  T267]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.899998][  T267] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.900008][  T267] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.900017][  T267] new_nbp (net/bridge/br_if.c:449) bridge
[   12.900026][  T267] br_add_if (net/bridge/br_if.c:592) bridge
[   12.900032][  T267]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.900037][  T267]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.900039][  T267]  ? __kernel_text_address (kernel/extable.c:79)
[   12.900043][  T267]  do_set_master (net/core/rtnetlink.c:3071)
[   12.900048][  T267]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.900051][  T267]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.900054][  T267]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.900055][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.900058][  T267]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.900061][  T267]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.900064][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.900066][  T267]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.900068][  T267]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.900071][  T267]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.900073][  T267]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.900076][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.900077][  T267]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.900081][  T267]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.900085][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.900087][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.900089][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.900092][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.900093][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.900095][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.900097][  T267]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.900101][  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)
[   12.900103][  T267]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.900105][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.900108][  T267]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.900110][  T267]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.900115][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.900120][  T267]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.900125][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.900127][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.900132][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.900133][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.900135][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.900137][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.900141][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.900143][  T267]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.900146][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.900147][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.900151][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.900153][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.900157][  T267]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.900158][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.900161][  T267]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.900167][  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))
[   12.900169][  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))
[   12.900173][  T267]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.900177][  T267]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.900179][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.900183][  T267]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.900187][  T267]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.900191][  T267]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.900196][  T267]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.900199][  T267]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.900201][  T267]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.900202][  T267]  ? move_addr_to_kernel (net/socket.c:258)
[   12.900210][  T267]  ___sys_sendmsg (net/socket.c:2767)
[   12.900213][  T267]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.900229][  T267]  __sys_sendmsg (net/socket.c:2799)
[   12.900232][  T267]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.900239][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.900242][  T267]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.900244][  T267]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.900248][  T267]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.900250][  T267] RIP: 0033:0x7fa6ee64354e
[   12.900253][  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
[   12.900256][  T267] RSP: 002b:00007ffc65d4c670 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.900258][  T267] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa6ee64354e
[   12.900260][  T267] RDX: 0000000000000000 RSI: 00007ffc65d4c720 RDI: 0000000000000005
[   12.900261][  T267] RBP: 00007ffc65d4c680 R08: 0000000000000000 R09: 0000000000000000
[   12.900262][  T267] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b605
[   12.900262][  T267] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc65d4cde0
| [   23.274943][  T350] softirqs last disabled at (22326): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   23.274946][  T350] Preemption disabled at:
| [   23.274947][  T350] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.274959][  T350] Tainted: [W]=WARN
[   23.274961][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.274963][  T350] Call Trace:
[   23.274965][  T350]  <TASK>
[   23.274968][  T350]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.274975][  T350]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.274978][  T350]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.274984][  T350]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.274990][  T350]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.274997][  T350]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   23.275001][  T350]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.275009][  T350]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.275013][  T350]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.275018][  T350]  put_chars (drivers/char/virtio_console.c:1176)
[   23.275023][  T350]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.275025][  T350]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.275032][  T350]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.275041][  T350]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.275051][  T350]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.275055][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275059][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.275066][  T350]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.275072][  T350]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.275075][  T350]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   23.275080][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275083][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.275090][  T350]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.275097][  T350]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.275100][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.275110][  T350]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.275114][  T350]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.275117][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275120][  T350]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.275126][  T350]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.275129][  T350]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.275134][  T350]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.275141][  T350]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.275143][  T350]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.275146][  T350]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.275150][  T350]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.275152][  T350]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   23.275155][  T350]  ? ___sys_sendmsg (net/socket.c:2767)
[   23.275158][  T350]  ? __sys_sendmsg (net/socket.c:2799)
[   23.275160][  T350]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.275167][  T350]  _printk (kernel/printk/printk.c:2504)
[   23.275172][  T350]  ? snapshot_read.cold (user.c:?)
[   23.275180][  T350]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   23.275184][  T350]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   23.275191][  T350]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   23.275194][  T350]  ? netdev_notice (net/core/dev.c:13194)
[   23.275201][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275205][  T350]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   23.275210][  T350]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   23.275212][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.275215][  T350]  ? 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)
[   23.275221][  T350]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   23.275228][  T350]  dev_set_allmulti (net/core/dev_api.c:315)
[   23.275235][  T350] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   23.275253][  T350]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   23.275263][  T350] br_del_if (net/bridge/br_if.c:732) bridge
[   23.275275][  T350]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   23.275279][  T350]  do_set_master (net/core/rtnetlink.c:3055)
[   23.275287][  T350]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.275293][  T350]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.275297][  T350]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.275299][  T350]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.275302][  T350]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.275307][  T350]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.275311][  T350]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.275314][  T350]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.275318][  T350]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.275322][  T350]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.275325][  T350]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.275329][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.275332][  T350]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   23.275335][  T350]  ? ___sys_sendmsg (net/socket.c:2757)
[   23.275341][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.275344][  T350]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.275349][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275352][  T350]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.275354][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275357][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275361][  T350]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.275365][  T350]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   23.275368][  T350]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.275375][  T350]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.275381][  T350]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.275384][  T350]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.275393][  T350]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.275402][  T350]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.275412][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.275415][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.275423][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.275426][  T350]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.275429][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.275432][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.275438][  T350]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.275442][  T350]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.275447][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.275449][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.275457][  T350]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.275460][  T350]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.275465][  T350]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.275468][  T350]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.275473][  T350]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.275483][  T350]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   23.275485][  T350]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   23.275493][  T350]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.275499][  T350]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.275503][  T350]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.275510][  T350]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.275517][  T350]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.275523][  T350]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   23.275532][  T350]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   23.275535][  T350]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.275539][  T350]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   23.275542][  T350]  ? move_addr_to_kernel (net/socket.c:258)
[   23.275555][  T350]  ___sys_sendmsg (net/socket.c:2767)
[   23.275559][  T350]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.275589][  T350]  __sys_sendmsg (net/socket.c:2799)
[   23.275593][  T350]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.275604][  T350]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.275610][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.275613][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.275618][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.275621][  T350] RIP: 0033:0x7f7df0e7454e
[   23.275626][  T350] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   23.275629][  T350] RSP: 002b:00007fff16daba10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.275634][  T350] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7df0e7454e
[   23.275636][  T350] RDX: 0000000000000000 RSI: 00007fff16dabac0 RDI: 0000000000000005
[   23.275638][  T350] RBP: 00007fff16daba20 R08: 0000000000000000 R09: 0000000000000000
[   23.275639][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b60f
[   23.275641][  T350] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff16dac180
| [   25.450180][  T354] softirqs last disabled at (15454): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   25.450184][  T354] Preemption disabled at:
| [   25.450185][  T354] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.450197][  T354] Tainted: [W]=WARN
[   25.450198][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.450201][  T354] Call Trace:
[   25.450203][  T354]  <TASK>
[   25.450205][  T354]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.450212][  T354]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.450215][  T354]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.450221][  T354]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.450227][  T354]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.450235][  T354]  __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))
[   25.450239][  T354]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.450247][  T354]  ? 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)
[   25.450251][  T354]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.450256][  T354]  put_chars (drivers/char/virtio_console.c:1176)
[   25.450259][  T354]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   25.450262][  T354]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.450267][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.450273][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.450276][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.450282][  T354]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.450286][  T354]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   25.450289][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450291][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450298][  T354]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.450301][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   25.450306][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450310][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.450317][  T354]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.450323][  T354]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.450326][  T354]  ? 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))
[   25.450331][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450334][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.450341][  T354]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.450348][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.450350][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450360][  T354]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.450364][  T354]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.450366][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450370][  T354]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.450378][  T354]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.450381][  T354]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.450386][  T354]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.450393][  T354]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.450397][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.450405][  T354]  _printk (kernel/printk/printk.c:2504)
[   25.450411][  T354]  ? snapshot_read.cold (user.c:?)
[   25.450417][  T354]  ? br_multicast_flood (??:?) bridge
[   25.450435][  T354]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.450438][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.450440][  T354]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.450448][  T354] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   25.450465][  T354] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   25.450479][  T354] new_nbp (net/bridge/br_if.c:449) bridge
[   25.450495][  T354] br_add_if (net/bridge/br_if.c:592) bridge
[   25.450507][  T354]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   25.450512][  T354]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   25.450516][  T354]  ? __kernel_text_address (kernel/extable.c:79)
[   25.450523][  T354]  do_set_master (net/core/rtnetlink.c:3071)
[   25.450531][  T354]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.450536][  T354]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.450541][  T354]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.450543][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.450546][  T354]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.450550][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.450554][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.450557][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.450561][  T354]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.450565][  T354]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.450568][  T354]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.450572][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450575][  T354]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   25.450579][  T354]  ? ___sys_sendmsg (net/socket.c:2757)
[   25.450586][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.450589][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.450593][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450597][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.450599][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450602][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450605][  T354]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.450611][  T354]  ? __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)
[   25.450615][  T354]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.450618][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.450624][  T354]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.450627][  T354]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.450636][  T354]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.450646][  T354]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.450662][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.450665][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450673][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.450676][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.450679][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.450683][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.450689][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.450693][  T354]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.450698][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.450700][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450708][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.450711][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.450717][  T354]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.450720][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.450725][  T354]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.450736][  T354]  ? 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))
[   25.450738][  T354]  ? 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))
[   25.450746][  T354]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.450753][  T354]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.450757][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.450764][  T354]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.450771][  T354]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.450778][  T354]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   25.450786][  T354]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   25.450790][  T354]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.450793][  T354]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   25.450796][  T354]  ? move_addr_to_kernel (net/socket.c:258)
[   25.450810][  T354]  ___sys_sendmsg (net/socket.c:2767)
[   25.450814][  T354]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.450844][  T354]  __sys_sendmsg (net/socket.c:2799)
[   25.450849][  T354]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.450860][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.450867][  T354]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.450870][  T354]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.450875][  T354]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.450879][  T354] RIP: 0033:0x7f7e88fe154e
[   25.450883][  T354] 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
[   25.450886][  T354] RSP: 002b:00007ffdef3ae470 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.450890][  T354] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f7e88fe154e
[   25.450893][  T354] RDX: 0000000000000000 RSI: 00007ffdef3ae520 RDI: 0000000000000005
[   25.450894][  T354] RBP: 00007ffdef3ae480 R08: 0000000000000000 R09: 0000000000000000
[   25.450896][  T354] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b611
[   25.450897][  T354] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdef3aebe0
| [   30.255028][  T407] softirqs last disabled at (15102): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   30.255032][  T407] Preemption disabled at:
| [   30.255033][  T407] vprintk_emit (kernel/printk/printk.c:2471)
| [   30.255045][  T407] Tainted: [W]=WARN
[   30.255047][  T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.255049][  T407] Call Trace:
[   30.255051][  T407]  <TASK>
[   30.255053][  T407]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   30.255061][  T407]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   30.255065][  T407]  __might_resched.cold (kernel/sched/core.c:9234)
[   30.255071][  T407]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   30.255077][  T407]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   30.255085][  T407]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   30.255089][  T407]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.255098][  T407]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   30.255102][  T407]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   30.255107][  T407]  put_chars (drivers/char/virtio_console.c:1176)
[   30.255112][  T407]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   30.255114][  T407]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.255121][  T407]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.255130][  T407]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   30.255141][  T407]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   30.255145][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255149][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.255156][  T407]  console_emit_next_record (kernel/printk/printk.c:3183)
[   30.255163][  T407]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   30.255166][  T407]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   30.255171][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255175][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.255182][  T407]  console_flush_one_record (kernel/printk/printk.c:3268)
[   30.255190][  T407]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   30.255192][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.255202][  T407]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   30.255207][  T407]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   30.255209][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255213][  T407]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   30.255220][  T407]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   30.255223][  T407]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   30.255229][  T407]  vprintk_emit (kernel/printk/printk.c:2479)
[   30.255236][  T407]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   30.255239][  T407]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.255241][  T407]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.255245][  T407]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.255248][  T407]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   30.255251][  T407]  ? ___sys_sendmsg (net/socket.c:2767)
[   30.255254][  T407]  ? __sys_sendmsg (net/socket.c:2799)
[   30.255257][  T407]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.255264][  T407]  _printk (kernel/printk/printk.c:2504)
[   30.255269][  T407]  ? snapshot_read.cold (user.c:?)
[   30.255278][  T407]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   30.255282][  T407]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   30.255289][  T407]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   30.255293][  T407]  ? netdev_notice (net/core/dev.c:13194)
[   30.255300][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255304][  T407]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   30.255308][  T407]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   30.255311][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.255314][  T407]  ? 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)
[   30.255320][  T407]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   30.255328][  T407]  dev_set_allmulti (net/core/dev_api.c:315)
[   30.255334][  T407] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   30.255352][  T407]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   30.255362][  T407] br_del_if (net/bridge/br_if.c:732) bridge
[   30.255377][  T407]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   30.255382][  T407]  do_set_master (net/core/rtnetlink.c:3055)
[   30.255390][  T407]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   30.255396][  T407]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   30.255400][  T407]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   30.255402][  T407]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   30.255406][  T407]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   30.255411][  T407]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   30.255416][  T407]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   30.255419][  T407]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   30.255423][  T407]  ? kasan_save_stack (mm/kasan/common.c:58)
[   30.255427][  T407]  ? kasan_save_stack (mm/kasan/common.c:57)
[   30.255430][  T407]  ? kasan_save_track (mm/kasan/common.c:78)
[   30.255434][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.255437][  T407]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   30.255441][  T407]  ? ___sys_sendmsg (net/socket.c:2757)
[   30.255447][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.255450][  T407]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.255455][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255459][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   30.255461][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255463][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255467][  T407]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   30.255472][  T407]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   30.255475][  T407]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   30.255479][  T407]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   30.255485][  T407]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   30.255488][  T407]  ? nla_get_range_signed (lib/nlattr.c:270)
[   30.255497][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   30.255507][  T407]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   30.255517][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.255520][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.255529][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.255532][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.255535][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.255539][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   30.255545][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   30.255549][  T407]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   30.255555][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.255557][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.255565][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   30.255568][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   30.255575][  T407]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   30.255577][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   30.255582][  T407]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   30.255594][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   30.255596][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   30.255605][  T407]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   30.255612][  T407]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   30.255616][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   30.255624][  T407]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   30.255631][  T407]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   30.255638][  T407]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   30.255647][  T407]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   30.255650][  T407]  ? copy_msghdr_from_user (net/socket.c:2650)
[   30.255654][  T407]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   30.255657][  T407]  ? move_addr_to_kernel (net/socket.c:258)
[   30.255675][  T407]  ___sys_sendmsg (net/socket.c:2767)
[   30.255680][  T407]  ? copy_msghdr_from_user (net/socket.c:2619)
[   30.255711][  T407]  __sys_sendmsg (net/socket.c:2799)
[   30.255716][  T407]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   30.255728][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   30.255734][  T407]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   30.255737][  T407]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   30.255742][  T407]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.255746][  T407] RIP: 0033:0x7f61d9d4054e
[   30.255751][  T407] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   30.255754][  T407] RSP: 002b:00007ffc7e0749c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   30.255758][  T407] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f61d9d4054e
[   30.255760][  T407] RDX: 0000000000000000 RSI: 00007ffc7e074a70 RDI: 0000000000000005
[   30.255762][  T407] RBP: 00007ffc7e0749d0 R08: 0000000000000000 R09: 0000000000000000
[   30.255763][  T407] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91b616


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