======================================
| [    9.052494][  T187] softirqs last disabled at (19126): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [    9.052500][  T187] Preemption disabled at:
| [    9.052501][  T187] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.052510][  T187] Tainted: [W]=WARN
[    9.052511][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.052513][  T187] Call Trace:
[    9.052515][  T187]  <TASK>
[    9.052516][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.052521][  T187]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.052524][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.052528][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.052532][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.052537][  T187]  __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))
[    9.052540][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.052545][  T187]  ? 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)
[    9.052548][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.052551][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[    9.052554][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.052561][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.052568][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.052571][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.052575][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.052578][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.052580][  T187]  ? 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))
[    9.052583][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.052588][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.052591][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.052596][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.052597][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.052603][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.052605][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.052607][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.052610][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.052613][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.052615][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.052618][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.052622][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.052624][  T187]  ? kasan_save_stack (mm/kasan/common.c:58)
[    9.052627][  T187]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.052629][  T187]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.052630][  T187]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[    9.052632][  T187]  ? hsr_add_port (./include/linux/slab.h:991 (discriminator 1) ./include/linux/slab.h:1312 (discriminator 1) net/hsr/hsr_slave.c:201 (discriminator 1))
[    9.052636][  T187]  ? hsr_dev_finalize (net/hsr/hsr_device.c:826)
[    9.052638][  T187]  ? hsr_newlink (net/hsr/hsr_netlink.c:127)
[    9.052641][  T187]  _printk (kernel/printk/printk.c:2504)
[    9.052644][  T187]  ? snapshot_read.cold (user.c:?)
[    9.052646][  T187]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.052650][  T187]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[    9.052654][  T187]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[    9.052657][  T187]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[    9.052659][  T187]  ? netdev_notice (net/core/dev.c:13194)
[    9.052666][  T187]  ? 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)
[    9.052670][  T187]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[    9.052674][  T187]  netif_set_promiscuity (net/core/dev.c:9699)
[    9.052679][  T187]  dev_set_promiscuity (net/core/dev_api.c:288)
[    9.052682][  T187]  hsr_add_port (net/hsr/hsr_slave.c:155 net/hsr/hsr_slave.c:213)
[    9.052685][  T187]  ? hsr_port_exists (net/hsr/hsr_slave.c:97)
[    9.052688][  T187]  ? timer_init_key (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 ./include/linux/lockdep.h:148 kernel/time/timer.c:861 kernel/time/timer.c:881)
[    9.052693][  T187]  hsr_dev_finalize (net/hsr/hsr_device.c:826)
[    9.052695][  T187]  ? alloc_netdev_mqs (net/core/dev.c:12198 (discriminator 10))
[    9.052700][  T187]  ? alloc_netdev_mqs (net/core/dev.c:12209)
[    9.052702][  T187]  hsr_newlink (net/hsr/hsr_netlink.c:127)
[    9.052705][  T187]  ? hsr_dellink (net/hsr/hsr_netlink.c:147)
[    9.052707][  T187]  ? rtnl_create_link (net/core/rtnetlink.c:3785)
[    9.052709][  T187]  ? nla_strscpy (lib/nlattr.c:795)
[    9.052714][  T187]  rtnl_newlink_create (net/core/rtnetlink.c:3969)
[    9.052718][  T187]  ? rtnl_create_link (net/core/rtnetlink.c:3756)
[    9.052719][  T187]  ? __dev_get_by_name (net/core/dev.c:905)
[    9.052721][  T187]  ? rtnl_dev_get (net/core/rtnetlink.c:3538)
[    9.052730][  T187]  __rtnl_newlink (net/core/rtnetlink.c:4098)
[    9.052736][  T187]  rtnl_newlink (net/core/rtnetlink.c:4215)
[    9.052742][  T187]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.052744][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.052751][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.052754][  T187]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[    9.052757][  T187]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[    9.052760][  T187]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.052761][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.052766][  T187]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.052768][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.052771][  T187]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[    9.052775][  T187]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.052778][  T187]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.052784][  T187]  ? 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))
[    9.052786][  T187]  ? 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))
[    9.052791][  T187]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.052795][  T187]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.052798][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.052802][  T187]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[    9.052806][  T187]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[    9.052810][  T187]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.052816][  T187]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[    9.052819][  T187]  ? copy_msghdr_from_user (net/socket.c:2650)
[    9.052822][  T187]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[    9.052824][  T187]  ? move_addr_to_kernel (net/socket.c:258)
[    9.052828][  T187]  ? do_fault_around (./include/linux/rcupdate.h:882 mm/memory.c:5961)
[    9.052830][  T187]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.052834][  T187]  ___sys_sendmsg (net/socket.c:2767)
[    9.052836][  T187]  ? do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[    9.052839][  T187]  ? copy_msghdr_from_user (net/socket.c:2619)
[    9.052841][  T187]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[    9.052856][  T187]  __sys_sendmsg (net/socket.c:2799)
[    9.052859][  T187]  ? __sys_sendmsg_sock (net/socket.c:2780)
[    9.052865][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.052867][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.052871][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.052874][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.052877][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.052879][  T187] RIP: 0033:0x7fd8906ba54e
[    9.052883][  T187] 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
[    9.052885][  T187] RSP: 002b:00007ffd1077b560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.052887][  T187] RAX: ffffffffffffffda RBX: 00007ffd1077bd10 RCX: 00007fd8906ba54e
[    9.052889][  T187] RDX: 0000000000000000 RSI: 00007ffd1077b610 RDI: 0000000000000005
[    9.052889][  T187] RBP: 00007ffd1077b570 R08: 0000000000000000 R09: 0000000000000000
[    9.052890][  T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9172a9
[    9.052891][  T187] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd1077bce0
| [   14.292505][  T249] softirqs last disabled at (29367): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.292508][  T249] Preemption disabled at:
| [   14.292508][  T249] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.292517][  T249] Tainted: [W]=WARN
[   14.292518][  T249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.292519][  T249] Call Trace:
[   14.292521][  T249]  <TASK>
[   14.292526][  T249]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.292531][  T249]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.292534][  T249]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.292538][  T249]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.292542][  T249]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.292547][  T249]  __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))
[   14.292549][  T249]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.292555][  T249]  ? 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)
[   14.292557][  T249]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.292560][  T249]  put_chars (drivers/char/virtio_console.c:1176)
[   14.292564][  T249]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.292565][  T249]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.292570][  T249]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.292572][  T249]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.292576][  T249]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.292579][  T249]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.292584][  T249]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.292587][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.292592][  T249]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.292595][  T249]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.292597][  T249]  ? 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))
[   14.292600][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.292602][  T249]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.292606][  T249]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.292610][  T249]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.292612][  T249]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.292617][  T249]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.292619][  T249]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.292621][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.292623][  T249]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.292627][  T249]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.292628][  T249]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.292632][  T249]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.292635][  T249]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.292641][  T249]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   14.292644][  T249]  _printk (kernel/printk/printk.c:2504)
[   14.292648][  T249]  ? snapshot_read.cold (user.c:?)
[   14.292654][  T249]  ? 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)
[   14.292657][  T249] 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
[   14.292660][  T249]  do_one_initcall (init/main.c:1357)
[   14.292663][  T249]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   14.292667][  T249]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   14.292670][  T249]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   14.292675][  T249]  do_init_module (kernel/module/main.c:3117)
[   14.292678][  T249]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   14.292682][  T249]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   14.292685][  T249]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   14.292689][  T249]  load_module (kernel/module/main.c:3593)
[   14.292695][  T249]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   14.292699][  T249]  ? __ia32_sys_fsconfig (??:?)
[   14.292702][  T249]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[   14.292707][  T249]  init_module_from_file (kernel/module/main.c:3790)
[   14.292710][  T249]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   14.292717][  T249]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   14.292721][  T249]  ? 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)
[   14.292724][  T249]  idempotent_init_module (kernel/module/main.c:3802)
[   14.292727][  T249]  ? init_module_from_file (kernel/module/main.c:3791)
[   14.292733][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.292735][  T249]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   14.292741][  T249]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   14.292743][  T249]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.292747][  T249]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.292750][  T249]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.292752][  T249]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.292754][  T249] RIP: 0033:0x7f9b982c237d
[   14.292757][  T249] 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
[   14.292759][  T249] RSP: 002b:00007ffde3456528 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   14.292762][  T249] RAX: ffffffffffffffda RBX: 0000561a20499810 RCX: 00007f9b982c237d
[   14.292763][  T249] RDX: 0000000000000000 RSI: 0000561a11753ffd RDI: 0000000000000000
[   14.292764][  T249] RBP: 00007ffde34565c0 R08: 0000000000000000 R09: 0000000000000000
[   14.292765][  T249] R10: 0000000000000000 R11: 0000000000000246 R12: 0000561a11753ffd
[   14.292765][  T249] R13: 0000561a20499960 R14: 0000000000040000 R15: 0000000000000000
| [   19.351976][   T71] softirqs last disabled at (14421): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.351979][   T71] Preemption disabled at:
| [   19.351979][   T71] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.351989][   T71] Tainted: [W]=WARN
[   19.351990][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.351991][   T71] Workqueue: netns cleanup_net
[   19.351994][   T71] Call Trace:
[   19.351996][   T71]  <TASK>
[   19.351998][   T71]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.352004][   T71]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.352006][   T71]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.352010][   T71]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.352014][   T71]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.352019][   T71]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.352021][   T71]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.352028][   T71]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.352031][   T71]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.352034][   T71]  put_chars (drivers/char/virtio_console.c:1176)
[   19.352037][   T71]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   19.352039][   T71]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.352042][   T71]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   19.352047][   T71]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.352054][   T71]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.352056][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.352060][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.352064][   T71]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.352068][   T71]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.352070][   T71]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   19.352073][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.352075][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.352079][   T71]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.352084][   T71]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.352085][   T71]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.352091][   T71]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.352094][   T71]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.352095][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.352098][   T71]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.352101][   T71]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.352103][   T71]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.352106][   T71]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.352110][   T71]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.352113][   T71]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   19.352115][   T71]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   19.352118][   T71]  ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369)
[   19.352119][   T71]  ? finish_task_switch.isra.0 (kernel/sched/sched.h:1698 kernel/sched/core.c:5251 kernel/sched/core.c:5369)
[   19.352123][   T71]  _printk (kernel/printk/printk.c:2504)
[   19.352126][   T71]  ? snapshot_read.cold (user.c:?)
[   19.352129][   T71]  ? synchronize_rcu_expedited (kernel/rcu/tree_exp.h:985)
[   19.352132][   T71]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.352135][   T71]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.352138][   T71]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.352141][   T71]  ? netdev_notice (net/core/dev.c:13194)
[   19.352144][   T71]  ? synchronize_rcu_expedited (kernel/rcu/tree_exp.h:985)
[   19.352146][   T71]  ? netif_set_mtu_ext (net/core/dev.c:9910 (discriminator 2))
[   19.352148][   T71]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   19.352152][   T71]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.352155][   T71]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   19.352158][   T71]  ? sync_rcu_exp_select_cpus (./include/linux/list.h:54 (discriminator 2))
[   19.352161][   T71]  netif_set_promiscuity (net/core/dev.c:9699)
[   19.352165][   T71]  dev_set_promiscuity (net/core/dev_api.c:288)
[   19.352168][   T71]  hsr_del_port (net/hsr/hsr_slave.c:244)
[   19.352173][   T71]  hsr_del_ports (net/hsr/hsr_device.c:498)
[   19.352176][   T71]  hsr_dellink (net/hsr/hsr_netlink.c:141)
[   19.352179][   T71]  default_device_exit_batch (net/core/dev.c:13280)
[   19.352182][   T71]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   19.352185][   T71]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.352187][   T71]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.352191][   T71]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   19.352195][   T71]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   19.352197][   T71]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   19.352198][   T71]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.352201][   T71]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   19.352206][   T71]  cleanup_net (net/core/net_namespace.c:706)
[   19.352209][   T71]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.352213][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.352215][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.352219][   T71]  process_one_work (kernel/workqueue.c:3387)
[   19.352225][   T71]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   19.352228][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.352236][   T71]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   19.352240][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   19.352242][   T71]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.352245][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   19.352248][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   19.352250][   T71]  kthread (kernel/kthread.c:436)
[   19.352252][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.352255][   T71]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.352258][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.352262][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   19.352265][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.352268][   T71]  ? kthread_affine_preferred (kernel/kthread.c:857)


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