======================================
| [   11.180766][  T235] softirqs last disabled at (33484): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.180768][  T235] Preemption disabled at:
| [   11.180769][  T235] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.180778][  T235] Tainted: [W]=WARN
[   11.180779][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.180780][  T235] Call Trace:
[   11.180782][  T235]  <TASK>
[   11.180784][  T235]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.180790][  T235]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.180792][  T235]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.180796][  T235]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.180800][  T235]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.180806][  T235]  __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))
[   11.180808][  T235]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.180813][  T235]  ? 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)
[   11.180816][  T235]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.180819][  T235]  put_chars (drivers/char/virtio_console.c:1176)
[   11.180822][  T235]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.180827][  T235]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.180830][  T235]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.180833][  T235]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.180835][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.180837][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.180840][  T235]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.180842][  T235]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.180846][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.180850][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.180854][  T235]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.180857][  T235]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.180859][  T235]  ? 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))
[   11.180862][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.180864][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.180868][  T235]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.180872][  T235]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.180874][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.180879][  T235]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.180882][  T235]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.180884][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.180886][  T235]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.180889][  T235]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.180891][  T235]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.180894][  T235]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.180898][  T235]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.180901][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.180902][  T235]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.180907][  T235]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.180910][  T235]  _printk (kernel/printk/printk.c:2504)
[   11.180914][  T235]  ? snapshot_read.cold (user.c:?)
[   11.180917][  T235]  ? br_multicast_flood (??:?) bridge
[   11.180931][  T235]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.180932][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.180933][  T235]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.180938][  T235] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.180948][  T235] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.180957][  T235] new_nbp (net/bridge/br_if.c:449) bridge
[   11.180967][  T235] br_add_if (net/bridge/br_if.c:592) bridge
[   11.180974][  T235]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.180978][  T235]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.180981][  T235]  ? __kernel_text_address (kernel/extable.c:79)
[   11.180985][  T235]  do_set_master (net/core/rtnetlink.c:3071)
[   11.180990][  T235]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.180993][  T235]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.180996][  T235]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.180997][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.181000][  T235]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.181003][  T235]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.181006][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.181008][  T235]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.181010][  T235]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.181014][  T235]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.181015][  T235]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.181018][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.181019][  T235]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.181022][  T235]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.181027][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.181029][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.181031][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.181034][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.181035][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.181037][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.181039][  T235]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.181043][  T235]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.181045][  T235]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.181047][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.181050][  T235]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.181052][  T235]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.181057][  T235]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.181062][  T235]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.181068][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.181070][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.181074][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.181076][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.181078][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.181080][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.181084][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.181086][  T235]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.181089][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.181090][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.181095][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.181097][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.181100][  T235]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.181102][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.181105][  T235]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.181111][  T235]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.181113][  T235]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.181117][  T235]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.181121][  T235]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.181123][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.181128][  T235]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.181131][  T235]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.181135][  T235]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.181141][  T235]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.181143][  T235]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.181145][  T235]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.181147][  T235]  ? move_addr_to_kernel (net/socket.c:258)
[   11.181155][  T235]  ___sys_sendmsg (net/socket.c:2767)
[   11.181157][  T235]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.181174][  T235]  __sys_sendmsg (net/socket.c:2799)
[   11.181176][  T235]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.181183][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.181187][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.181189][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.181192][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.181194][  T235] RIP: 0033:0x7ff75f14f54e
[   11.181198][  T235] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.181200][  T235] RSP: 002b:00007ffd870e9720 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.181202][  T235] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff75f14f54e
[   11.181204][  T235] RDX: 0000000000000000 RSI: 00007ffd870e97d0 RDI: 0000000000000005
[   11.181205][  T235] RBP: 00007ffd870e9730 R08: 0000000000000000 R09: 0000000000000000
[   11.181205][  T235] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd9f
[   11.181206][  T235] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd870e9e90
| [   16.915115][  T274] softirqs last disabled at (27897): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.915118][  T274] Preemption disabled at:
| [   16.915119][  T274] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.915131][  T274] Tainted: [W]=WARN
[   16.915132][  T274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.915134][  T274] Call Trace:
[   16.915136][  T274]  <TASK>
[   16.915138][  T274]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.915145][  T274]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.915148][  T274]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.915154][  T274]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.915159][  T274]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.915166][  T274]  __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))
[   16.915169][  T274]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.915177][  T274]  ? 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)
[   16.915180][  T274]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.915185][  T274]  put_chars (drivers/char/virtio_console.c:1176)
[   16.915187][  T274]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.915190][  T274]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.915195][  T274]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.915199][  T274]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.915206][  T274]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.915209][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.915211][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.915218][  T274]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.915220][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.915225][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.915229][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.915235][  T274]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.915241][  T274]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.915243][  T274]  ? 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))
[   16.915247][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.915250][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.915256][  T274]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.915262][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.915265][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.915273][  T274]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.915276][  T274]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.915279][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.915282][  T274]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.915288][  T274]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.915290][  T274]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.915295][  T274]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.915301][  T274]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.915310][  T274]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   16.915314][  T274]  _printk (kernel/printk/printk.c:2504)
[   16.915319][  T274]  ? snapshot_read.cold (user.c:?)
[   16.915328][  T274]  ? 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)
[   16.915333][  T274] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.915337][  T274]  do_one_initcall (init/main.c:1357)
[   16.915341][  T274]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.915348][  T274]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.915352][  T274]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.915358][  T274]  do_init_module (kernel/module/main.c:3117)
[   16.915364][  T274]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.915369][  T274]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.915374][  T274]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.915380][  T274]  load_module (kernel/module/main.c:3593)
[   16.915396][  T274]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.915401][  T274]  ? __ia32_sys_fsconfig (??:?)
[   16.915404][  T274]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   16.915410][  T274]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.915414][  T274]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.915420][  T274]  init_module_from_file (kernel/module/main.c:3790)
[   16.915424][  T274]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.915437][  T274]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.915442][  T274]  ? 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)
[   16.915447][  T274]  idempotent_init_module (kernel/module/main.c:3802)
[   16.915451][  T274]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.915461][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.915464][  T274]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.915472][  T274]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.915475][  T274]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.915480][  T274]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.915482][  T274]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.915486][  T274]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.915489][  T274] RIP: 0033:0x7fda0c4e437d
[   16.915494][  T274] 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
[   16.915497][  T274] RSP: 002b:00007ffe73a5d388 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.915500][  T274] RAX: ffffffffffffffda RBX: 00005560413bf810 RCX: 00007fda0c4e437d
[   16.915502][  T274] RDX: 0000000000000000 RSI: 000055603c1aaffd RDI: 0000000000000000
[   16.915503][  T274] RBP: 00007ffe73a5d420 R08: 0000000000000000 R09: 0000000000000000
[   16.915504][  T274] R10: 0000000000000000 R11: 0000000000000246 R12: 000055603c1aaffd
[   16.915508][  T274] R13: 00005560413bf960 R14: 0000000000040000 R15: 0000000000000000
| [   22.086186][  T608] softirqs last disabled at (11750): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73) bridge
| [   22.086193][  T608] Preemption disabled at:
| [   22.086194][  T608] 0x0
| [   22.086204][  T608] Tainted: [W]=WARN
[   22.086205][  T608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.086207][  T608] Call Trace:
[   22.086208][  T608]  <TASK>
[   22.086210][  T608]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.086217][  T608]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.086222][  T608]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.086226][  T608]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.086231][  T608]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.086233][  T608]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.086239][  T608]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.086242][  T608]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.086245][  T608]  put_chars (drivers/char/virtio_console.c:1176)
[   22.086247][  T608]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   22.086249][  T608]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.086252][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.086256][  T608]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.086260][  T608]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.086263][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086265][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086270][  T608]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.086271][  T608]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.086274][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086277][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.086281][  T608]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.086285][  T608]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.086287][  T608]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.086290][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086293][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.086297][  T608]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.086301][  T608]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.086303][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086308][  T608]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.086311][  T608]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.086313][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086316][  T608]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.086320][  T608]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.086321][  T608]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.086325][  T608]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.086329][  T608]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.086332][  T608]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.086335][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.086339][  T608]  _printk (kernel/printk/printk.c:2504)
[   22.086342][  T608]  ? snapshot_read.cold (user.c:?)
[   22.086350][  T608] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   22.086361][  T608] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   22.086369][  T608] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   22.086377][  T608] br_dev_stop (net/bridge/br_device.c:193) bridge
[   22.086387][  T608]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.086389][  T608]  __dev_close_many (net/core/dev.c:1798)
[   22.086393][  T608]  ? netif_open (net/core/dev.c:1755)
[   22.086395][  T608]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.086397][  T608]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.086402][  T608]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   22.086405][  T608]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   22.086408][  T608]  ? __kernel_text_address (kernel/extable.c:79)
[   22.086411][  T608]  ? write_profile (profile.c:?)
[   22.086419][  T608]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.086424][  T608]  netif_change_flags (net/core/dev.c:9877)
[   22.086428][  T608]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   22.086432][  T608]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.086434][  T608]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.086435][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.086437][  T608]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.086440][  T608]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.086443][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.086445][  T608]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.086448][  T608]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.086451][  T608]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.086452][  T608]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.086455][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086457][  T608]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   22.086460][  T608]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.086465][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.086467][  T608]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.086469][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086472][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.086473][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086475][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086478][  T608]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.086481][  T608]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.086484][  T608]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.086487][  T608]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.086490][  T608]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.086495][  T608]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.086501][  T608]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.086508][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.086510][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086515][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.086516][  T608]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.086519][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.086520][  T608]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.086524][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.086526][  T608]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.086529][  T608]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.086531][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086535][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.086537][  T608]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.086541][  T608]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.086542][  T608]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.086545][  T608]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.086552][  T608]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.086553][  T608]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.086557][  T608]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.086561][  T608]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.086564][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.086568][  T608]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.086572][  T608]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.086576][  T608]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.086582][  T608]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.086584][  T608]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.086586][  T608]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.086588][  T608]  ? move_addr_to_kernel (net/socket.c:258)
[   22.086595][  T608]  ___sys_sendmsg (net/socket.c:2767)
[   22.086598][  T608]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.086614][  T608]  __sys_sendmsg (net/socket.c:2799)
[   22.086617][  T608]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.086623][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.086627][  T608]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.086630][  T608]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.086633][  T608]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.086635][  T608] RIP: 0033:0x7ff34d95854e
[   22.086637][  T608] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.086639][  T608] RSP: 002b:00007ffc180e5ee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.086642][  T608] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff34d95854e
[   22.086643][  T608] RDX: 0000000000000000 RSI: 00007ffc180e5f90 RDI: 0000000000000005
[   22.086644][  T608] RBP: 00007ffc180e5ef0 R08: 0000000000000000 R09: 0000000000000000
[   22.086645][  T608] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ddaa


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