======================================
| [   10.587273][  T237] softirqs last disabled at (20880): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.587276][  T237] Preemption disabled at:
| [   10.587277][  T237] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.587288][  T237] Tainted: [W]=WARN
[   10.587289][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.587291][  T237] Call Trace:
[   10.587293][  T237]  <TASK>
[   10.587295][  T237]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.587302][  T237]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.587305][  T237]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.587311][  T237]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.587317][  T237]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.587324][  T237]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.587327][  T237]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.587339][  T237]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.587342][  T237]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.587347][  T237]  put_chars (drivers/char/virtio_console.c:1176)
[   10.587351][  T237]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.587358][  T237]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.587364][  T237]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.587368][  T237]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.587371][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587373][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587379][  T237]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.587383][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.587388][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587392][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.587399][  T237]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.587404][  T237]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.587407][  T237]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.587412][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587415][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.587421][  T237]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.587428][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.587430][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587439][  T237]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.587443][  T237]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.587445][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587449][  T237]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.587455][  T237]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.587457][  T237]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.587462][  T237]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.587468][  T237]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.587471][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.587474][  T237]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.587479][  T237]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.587485][  T237]  _printk (kernel/printk/printk.c:2504)
[   10.587489][  T237]  ? snapshot_read.cold (user.c:?)
[   10.587495][  T237]  ? br_multicast_flood (??:?) bridge
[   10.587512][  T237]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.587514][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.587516][  T237]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.587523][  T237] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.587539][  T237] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.587553][  T237] new_nbp (net/bridge/br_if.c:449) bridge
[   10.587568][  T237] br_add_if (net/bridge/br_if.c:592) bridge
[   10.587580][  T237]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.587585][  T237]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.587589][  T237]  ? __kernel_text_address (kernel/extable.c:79)
[   10.587596][  T237]  do_set_master (net/core/rtnetlink.c:3071)
[   10.587603][  T237]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.587608][  T237]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.587612][  T237]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.587614][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.587617][  T237]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.587622][  T237]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.587626][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.587628][  T237]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.587632][  T237]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.587636][  T237]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.587639][  T237]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.587643][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587646][  T237]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   10.587650][  T237]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.587656][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.587659][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.587663][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587667][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.587669][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587671][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587675][  T237]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.587680][  T237]  ? __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)
[   10.587682][  T237]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.587686][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.587691][  T237]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.587694][  T237]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.587702][  T237]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.587711][  T237]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.587720][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.587723][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587731][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.587733][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.587736][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.587739][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.587745][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.587749][  T237]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.587753][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.587755][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587763][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.587765][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.587771][  T237]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.587773][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.587778][  T237]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.587789][  T237]  ? 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))
[   10.587791][  T237]  ? 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))
[   10.587798][  T237]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.587804][  T237]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.587808][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.587815][  T237]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.587821][  T237]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.587827][  T237]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.587835][  T237]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.587839][  T237]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.587842][  T237]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.587844][  T237]  ? move_addr_to_kernel (net/socket.c:258)
[   10.587857][  T237]  ___sys_sendmsg (net/socket.c:2767)
[   10.587862][  T237]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.587890][  T237]  __sys_sendmsg (net/socket.c:2799)
[   10.587894][  T237]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.587904][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.587910][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.587913][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.587917][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.587921][  T237] RIP: 0033:0x7f2aa4c4f54e
[   10.587925][  T237] 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
[   10.587927][  T237] RSP: 002b:00007ffcf490ff50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.587930][  T237] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2aa4c4f54e
[   10.587932][  T237] RDX: 0000000000000000 RSI: 00007ffcf4910000 RDI: 0000000000000005
[   10.587934][  T237] RBP: 00007ffcf490ff60 R08: 0000000000000000 R09: 0000000000000000
[   10.587935][  T237] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ae67
[   10.587936][  T237] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf49106c0
| [   16.349266][  T275] softirqs last disabled at (17763): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.349268][  T275] Preemption disabled at:
| [   16.349269][  T275] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.349278][  T275] Tainted: [W]=WARN
[   16.349279][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.349280][  T275] Call Trace:
[   16.349282][  T275]  <TASK>
[   16.349284][  T275]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.349289][  T275]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.349291][  T275]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.349296][  T275]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.349300][  T275]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.349305][  T275]  __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))
[   16.349307][  T275]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.349313][  T275]  ? 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)
[   16.349316][  T275]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.349319][  T275]  put_chars (drivers/char/virtio_console.c:1176)
[   16.349321][  T275]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.349323][  T275]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.349326][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.349333][  T275]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.349338][  T275]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.349341][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.349342][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.349347][  T275]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.349348][  T275]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.349351][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.349354][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.349358][  T275]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.349362][  T275]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.349364][  T275]  ? 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))
[   16.349367][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.349369][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.349373][  T275]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.349377][  T275]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.349379][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.349384][  T275]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.349387][  T275]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.349389][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.349391][  T275]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.349395][  T275]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.349396][  T275]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.349400][  T275]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.349404][  T275]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.349409][  T275]  ? 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
[   16.349413][  T275]  _printk (kernel/printk/printk.c:2504)
[   16.349416][  T275]  ? snapshot_read.cold (user.c:?)
[   16.349423][  T275]  ? 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)
[   16.349426][  T275] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.349429][  T275]  do_one_initcall (init/main.c:1357)
[   16.349431][  T275]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.349436][  T275]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.349439][  T275]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.349444][  T275]  do_init_module (kernel/module/main.c:3117)
[   16.349447][  T275]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.349451][  T275]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.349455][  T275]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.349459][  T275]  load_module (kernel/module/main.c:3593)
[   16.349466][  T275]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.349469][  T275]  ? __ia32_sys_fsconfig (??:?)
[   16.349472][  T275]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   16.349476][  T275]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.349479][  T275]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.349483][  T275]  init_module_from_file (kernel/module/main.c:3790)
[   16.349486][  T275]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.349495][  T275]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.349498][  T275]  ? 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)
[   16.349501][  T275]  idempotent_init_module (kernel/module/main.c:3802)
[   16.349505][  T275]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.349511][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.349513][  T275]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.349519][  T275]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.349521][  T275]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.349525][  T275]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.349527][  T275]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.349529][  T275]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.349532][  T275] RIP: 0033:0x7fe045cb337d
[   16.349535][  T275] 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
[   16.349537][  T275] RSP: 002b:00007ffe933f6e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.349540][  T275] RAX: ffffffffffffffda RBX: 00005594c1862810 RCX: 00007fe045cb337d
[   16.349541][  T275] RDX: 0000000000000000 RSI: 00005594bddc1ffd RDI: 0000000000000000
[   16.349542][  T275] RBP: 00007ffe933f6f20 R08: 0000000000000000 R09: 0000000000000000
[   16.349543][  T275] R10: 0000000000000000 R11: 0000000000000246 R12: 00005594bddc1ffd
[   16.349544][  T275] R13: 00005594c1862960 R14: 0000000000040000 R15: 0000000000000000
| [   21.183664][  T608] softirqs last disabled at (14382): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73) bridge
| [   21.183671][  T608] Preemption disabled at:
| [   21.183672][  T608] 0x0
| [   21.183681][  T608] Tainted: [W]=WARN
[   21.183682][  T608] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.183684][  T608] Call Trace:
[   21.183686][  T608]  <TASK>
[   21.183687][  T608]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.183693][  T608]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.183698][  T608]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.183702][  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)
[   21.183707][  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))
[   21.183709][  T608]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.183714][  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)
[   21.183717][  T608]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.183720][  T608]  put_chars (drivers/char/virtio_console.c:1176)
[   21.183722][  T608]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   21.183725][  T608]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.183728][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.183731][  T608]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.183735][  T608]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.183738][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.183739][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.183744][  T608]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.183745][  T608]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.183748][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.183751][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.183755][  T608]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.183759][  T608]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.183761][  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))
[   21.183764][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.183766][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.183770][  T608]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.183774][  T608]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.183776][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.183781][  T608]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.183784][  T608]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.183785][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.183788][  T608]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.183791][  T608]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.183793][  T608]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.183796][  T608]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.183800][  T608]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.183803][  T608]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.183806][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.183809][  T608]  _printk (kernel/printk/printk.c:2504)
[   21.183813][  T608]  ? snapshot_read.cold (user.c:?)
[   21.183820][  T608] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.183830][  T608] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   21.183839][  T608] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   21.183846][  T608] br_dev_stop (net/bridge/br_device.c:193) bridge
[   21.183855][  T608]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.183858][  T608]  __dev_close_many (net/core/dev.c:1798)
[   21.183861][  T608]  ? netif_open (net/core/dev.c:1755)
[   21.183865][  T608]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   21.183870][  T608]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   21.183873][  T608]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   21.183876][  T608]  ? __kernel_text_address (kernel/extable.c:79)
[   21.183878][  T608]  ? write_profile (profile.c:?)
[   21.183881][  T608]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   21.183885][  T608]  netif_change_flags (net/core/dev.c:9877)
[   21.183889][  T608]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   21.183892][  T608]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.183894][  T608]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.183895][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.183897][  T608]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.183901][  T608]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.183903][  T608]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.183905][  T608]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.183907][  T608]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.183911][  T608]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.183913][  T608]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.183915][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.183917][  T608]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   21.183920][  T608]  ? ___sys_sendmsg (net/socket.c:2757)
[   21.183924][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.183926][  T608]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.183929][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.183931][  T608]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.183933][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.183934][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.183937][  T608]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.183941][  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)
[   21.183944][  T608]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.183946][  T608]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.183949][  T608]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.183955][  T608]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.183960][  T608]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.183965][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.183967][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.183972][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.183973][  T608]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.183976][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.183978][  T608]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.183981][  T608]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.183983][  T608]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.183986][  T608]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.183988][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.183992][  T608]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.183994][  T608]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.183997][  T608]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.183999][  T608]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.184002][  T608]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.184008][  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))
[   21.184010][  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))
[   21.184014][  T608]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.184018][  T608]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.184020][  T608]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.184024][  T608]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.184028][  T608]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.184032][  T608]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   21.184037][  T608]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   21.184039][  T608]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.184042][  T608]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   21.184043][  T608]  ? move_addr_to_kernel (net/socket.c:258)
[   21.184051][  T608]  ___sys_sendmsg (net/socket.c:2767)
[   21.184053][  T608]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.184069][  T608]  __sys_sendmsg (net/socket.c:2799)
[   21.184072][  T608]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.184078][  T608]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.184082][  T608]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.184084][  T608]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.184087][  T608]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.184090][  T608] RIP: 0033:0x7f2714dbc54e
[   21.184092][  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
[   21.184094][  T608] RSP: 002b:00007ffc63b21e60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.184096][  T608] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2714dbc54e
[   21.184098][  T608] RDX: 0000000000000000 RSI: 00007ffc63b21f10 RDI: 0000000000000005
[   21.184099][  T608] RBP: 00007ffc63b21e70 R08: 0000000000000000 R09: 0000000000000000
[   21.184099][  T608] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ae71


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