======================================
| [   11.168898][  T236] softirqs last disabled at (12676): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.168901][  T236] Preemption disabled at:
| [   11.168901][  T236] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.168910][  T236] Tainted: [W]=WARN
[   11.168911][  T236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.168913][  T236] Call Trace:
[   11.168915][  T236]  <TASK>
[   11.168916][  T236]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.168922][  T236]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.168924][  T236]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.168929][  T236]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.168933][  T236]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.168938][  T236]  __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))
[   11.168940][  T236]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.168946][  T236]  ? 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)
[   11.168949][  T236]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.168952][  T236]  put_chars (drivers/char/virtio_console.c:1176)
[   11.168955][  T236]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.168959][  T236]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.168962][  T236]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.168965][  T236]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.168967][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.168969][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.168973][  T236]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.168975][  T236]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.168978][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.168982][  T236]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.168986][  T236]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.168989][  T236]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.168991][  T236]  ? 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))
[   11.168994][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.168996][  T236]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.169000][  T236]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.169004][  T236]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.169006][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.169011][  T236]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.169014][  T236]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.169015][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.169018][  T236]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.169021][  T236]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.169023][  T236]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.169026][  T236]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.169030][  T236]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.169033][  T236]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.169035][  T236]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.169039][  T236]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.169043][  T236]  _printk (kernel/printk/printk.c:2504)
[   11.169046][  T236]  ? snapshot_read.cold (user.c:?)
[   11.169050][  T236]  ? br_multicast_flood (??:?) bridge
[   11.169063][  T236]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.169064][  T236]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.169065][  T236]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.169069][  T236] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.169079][  T236] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.169087][  T236] new_nbp (net/bridge/br_if.c:449) bridge
[   11.169096][  T236] br_add_if (net/bridge/br_if.c:592) bridge
[   11.169103][  T236]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.169107][  T236]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.169110][  T236]  ? __kernel_text_address (kernel/extable.c:79)
[   11.169114][  T236]  do_set_master (net/core/rtnetlink.c:3071)
[   11.169119][  T236]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.169122][  T236]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.169125][  T236]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.169126][  T236]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.169129][  T236]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.169132][  T236]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.169135][  T236]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.169137][  T236]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.169139][  T236]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.169142][  T236]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.169144][  T236]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.169146][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.169148][  T236]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.169151][  T236]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.169155][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.169157][  T236]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.169160][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.169162][  T236]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.169164][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.169165][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.169168][  T236]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.169171][  T236]  ? __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)
[   11.169173][  T236]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.169175][  T236]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.169178][  T236]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.169180][  T236]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.169185][  T236]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.169190][  T236]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.169195][  T236]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.169197][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.169201][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.169203][  T236]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.169205][  T236]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.169207][  T236]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.169210][  T236]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.169212][  T236]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.169215][  T236]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.169217][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.169221][  T236]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.169223][  T236]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.169226][  T236]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.169228][  T236]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.169231][  T236]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.169237][  T236]  ? 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))
[   11.169238][  T236]  ? 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))
[   11.169242][  T236]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.169246][  T236]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.169248][  T236]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.169253][  T236]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.169256][  T236]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.169260][  T236]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.169265][  T236]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.169267][  T236]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.169269][  T236]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.169271][  T236]  ? move_addr_to_kernel (net/socket.c:258)
[   11.169278][  T236]  ___sys_sendmsg (net/socket.c:2767)
[   11.169281][  T236]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.169296][  T236]  __sys_sendmsg (net/socket.c:2799)
[   11.169299][  T236]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.169305][  T236]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.169309][  T236]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.169311][  T236]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.169314][  T236]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.169317][  T236] RIP: 0033:0x7ffbd667c54e
[   11.169320][  T236] 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
[   11.169321][  T236] RSP: 002b:00007ffc8f8ffb50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.169324][  T236] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ffbd667c54e
[   11.169326][  T236] RDX: 0000000000000000 RSI: 00007ffc8f8ffc00 RDI: 0000000000000005
[   11.169327][  T236] RBP: 00007ffc8f8ffb60 R08: 0000000000000000 R09: 0000000000000000
[   11.169327][  T236] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91848f
[   11.169328][  T236] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8f9002c0
| [   17.014556][  T274] softirqs last disabled at (21083): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.014559][  T274] Preemption disabled at:
| [   17.014560][  T274] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.014572][  T274] Tainted: [W]=WARN
[   17.014573][  T274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.014575][  T274] Call Trace:
[   17.014577][  T274]  <TASK>
[   17.014579][  T274]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.014586][  T274]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.014589][  T274]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.014595][  T274]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.014600][  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)
[   17.014607][  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))
[   17.014611][  T274]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.014626][  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)
[   17.014629][  T274]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.014634][  T274]  put_chars (drivers/char/virtio_console.c:1176)
[   17.014636][  T274]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   17.014640][  T274]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.014645][  T274]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.014649][  T274]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.014656][  T274]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.014659][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.014662][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.014669][  T274]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.014671][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.014676][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.014680][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.014687][  T274]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.014692][  T274]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.014695][  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))
[   17.014700][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.014703][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.014709][  T274]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.014716][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.014718][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.014727][  T274]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.014731][  T274]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.014734][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.014737][  T274]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.014743][  T274]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.014746][  T274]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.014751][  T274]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.014757][  T274]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.014767][  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
[   17.014772][  T274]  _printk (kernel/printk/printk.c:2504)
[   17.014779][  T274]  ? snapshot_read.cold (user.c:?)
[   17.014789][  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)
[   17.014794][  T274] gact_init_module (net/sched/act_gact.c:180) act_gact
[   17.014798][  T274]  do_one_initcall (init/main.c:1357)
[   17.014802][  T274]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   17.014809][  T274]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   17.014812][  T274]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   17.014819][  T274]  do_init_module (kernel/module/main.c:3117)
[   17.014824][  T274]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.014830][  T274]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   17.014834][  T274]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   17.014840][  T274]  load_module (kernel/module/main.c:3593)
[   17.014851][  T274]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   17.014857][  T274]  ? __ia32_sys_fsconfig (??:?)
[   17.014860][  T274]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   17.014865][  T274]  ? backing_file_read_iter (fs/backing-file.c:211)
[   17.014869][  T274]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.014875][  T274]  init_module_from_file (kernel/module/main.c:3790)
[   17.014879][  T274]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   17.014891][  T274]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   17.014896][  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)
[   17.014901][  T274]  idempotent_init_module (kernel/module/main.c:3802)
[   17.014906][  T274]  ? init_module_from_file (kernel/module/main.c:3791)
[   17.014915][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.014918][  T274]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   17.014926][  T274]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   17.014929][  T274]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.014934][  T274]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.014936][  T274]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.014940][  T274]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.014943][  T274] RIP: 0033:0x7f316b9f337d
[   17.014947][  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
[   17.014949][  T274] RSP: 002b:00007fff99c7a238 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   17.014953][  T274] RAX: ffffffffffffffda RBX: 000055b1dc8d0810 RCX: 00007f316b9f337d
[   17.014955][  T274] RDX: 0000000000000000 RSI: 000055b1c90e6ffd RDI: 0000000000000000
[   17.014956][  T274] RBP: 00007fff99c7a2d0 R08: 0000000000000000 R09: 0000000000000000
[   17.014957][  T274] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b1c90e6ffd
[   17.014958][  T274] R13: 000055b1dc8d0960 R14: 0000000000040000 R15: 0000000000000000
| [   22.281560][  T608] softirqs last disabled at (13450): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73) bridge
| [   22.281568][  T608] Preemption disabled at:
| [   22.281569][  T608] 0x0
| [   22.281580][  T608] Tainted: [W]=WARN
[   22.281581][  T608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.281583][  T608] Call Trace:
[   22.281584][  T608]  <TASK>
[   22.281586][  T608]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.281592][  T608]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.281597][  T608]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.281602][  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)
[   22.281607][  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))
[   22.281609][  T608]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.281615][  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)
[   22.281618][  T608]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.281621][  T608]  put_chars (drivers/char/virtio_console.c:1176)
[   22.281623][  T608]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   22.281625][  T608]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.281635][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.281638][  T608]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.281643][  T608]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.281645][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281647][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281652][  T608]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.281653][  T608]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.281656][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.281659][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.281663][  T608]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.281667][  T608]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.281669][  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))
[   22.281672][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.281675][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.281679][  T608]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.281683][  T608]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.281685][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281690][  T608]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.281693][  T608]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.281695][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.281697][  T608]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.281701][  T608]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.281703][  T608]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.281706][  T608]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.281710][  T608]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.281713][  T608]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.281716][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.281719][  T608]  _printk (kernel/printk/printk.c:2504)
[   22.281723][  T608]  ? snapshot_read.cold (user.c:?)
[   22.281731][  T608] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   22.281742][  T608] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   22.281750][  T608] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   22.281758][  T608] br_dev_stop (net/bridge/br_device.c:193) bridge
[   22.281768][  T608]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.281771][  T608]  __dev_close_many (net/core/dev.c:1798)
[   22.281777][  T608]  ? netif_open (net/core/dev.c:1755)
[   22.281779][  T608]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.281782][  T608]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.281787][  T608]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   22.281790][  T608]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   22.281793][  T608]  ? __kernel_text_address (kernel/extable.c:79)
[   22.281795][  T608]  ? write_profile (profile.c:?)
[   22.281798][  T608]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.281803][  T608]  netif_change_flags (net/core/dev.c:9877)
[   22.281807][  T608]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   22.281810][  T608]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.281812][  T608]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.281814][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.281815][  T608]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.281819][  T608]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.281821][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.281823][  T608]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.281826][  T608]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.281829][  T608]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.281830][  T608]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.281833][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281835][  T608]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   22.281838][  T608]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.281842][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.281844][  T608]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.281847][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.281849][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.281851][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.281853][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.281855][  T608]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.281859][  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)
[   22.281862][  T608]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.281864][  T608]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.281868][  T608]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.281873][  T608]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.281878][  T608]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.281884][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.281886][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281890][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.281892][  T608]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.281894][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.281896][  T608]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.281900][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.281902][  T608]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.281905][  T608]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.281906][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281911][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.281913][  T608]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.281916][  T608]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.281918][  T608]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.281921][  T608]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.281927][  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))
[   22.281929][  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))
[   22.281933][  T608]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.281937][  T608]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.281939][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.281944][  T608]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.281947][  T608]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.281951][  T608]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.281957][  T608]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.281959][  T608]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.281961][  T608]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.281963][  T608]  ? move_addr_to_kernel (net/socket.c:258)
[   22.281970][  T608]  ___sys_sendmsg (net/socket.c:2767)
[   22.281973][  T608]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.281989][  T608]  __sys_sendmsg (net/socket.c:2799)
[   22.281992][  T608]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.281999][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.282003][  T608]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.282005][  T608]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.282008][  T608]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.282010][  T608] RIP: 0033:0x7fd2d4ded54e
[   22.282013][  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
[   22.282014][  T608] RSP: 002b:00007ffc2edddb80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.282017][  T608] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd2d4ded54e
[   22.282018][  T608] RDX: 0000000000000000 RSI: 00007ffc2edddc30 RDI: 0000000000000005
[   22.282019][  T608] RBP: 00007ffc2edddb90 R08: 0000000000000000 R09: 0000000000000000
[   22.282020][  T608] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91849a


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