======================================
| [   10.842165][  T237] softirqs last disabled at (20250): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.842167][  T237] Preemption disabled at:
| [   10.842168][  T237] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.842177][  T237] Tainted: [W]=WARN
[   10.842178][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.842180][  T237] Call Trace:
[   10.842182][  T237]  <TASK>
[   10.842183][  T237]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.842189][  T237]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.842192][  T237]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.842196][  T237]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.842200][  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)
[   10.842205][  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))
[   10.842208][  T237]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.842213][  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)
[   10.842216][  T237]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.842219][  T237]  put_chars (drivers/char/virtio_console.c:1176)
[   10.842222][  T237]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.842226][  T237]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.842229][  T237]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.842232][  T237]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.842234][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842236][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842240][  T237]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.842242][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.842245][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842249][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.842253][  T237]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.842257][  T237]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.842259][  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))
[   10.842262][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842264][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.842268][  T237]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.842272][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.842274][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842279][  T237]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.842281][  T237]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.842283][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842286][  T237]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.842290][  T237]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.842292][  T237]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.842295][  T237]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.842299][  T237]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.842301][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.842303][  T237]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.842307][  T237]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.842311][  T237]  _printk (kernel/printk/printk.c:2504)
[   10.842314][  T237]  ? snapshot_read.cold (user.c:?)
[   10.842318][  T237]  ? br_multicast_flood (??:?) bridge
[   10.842330][  T237]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.842332][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.842333][  T237]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.842338][  T237] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.842348][  T237] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.842356][  T237] new_nbp (net/bridge/br_if.c:449) bridge
[   10.842365][  T237] br_add_if (net/bridge/br_if.c:592) bridge
[   10.842373][  T237]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.842377][  T237]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.842380][  T237]  ? __kernel_text_address (kernel/extable.c:79)
[   10.842384][  T237]  do_set_master (net/core/rtnetlink.c:3071)
[   10.842388][  T237]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.842391][  T237]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.842394][  T237]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.842396][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.842398][  T237]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.842401][  T237]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.842404][  T237]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.842406][  T237]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.842408][  T237]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.842411][  T237]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.842413][  T237]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.842416][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842418][  T237]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.842420][  T237]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.842425][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.842427][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.842429][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842432][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.842433][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842435][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842437][  T237]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.842441][  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)
[   10.842443][  T237]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.842445][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.842448][  T237]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.842450][  T237]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.842455][  T237]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.842460][  T237]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.842465][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.842467][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842471][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.842473][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.842475][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.842477][  T237]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.842481][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.842483][  T237]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.842486][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.842487][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842492][  T237]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.842494][  T237]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.842497][  T237]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.842499][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.842502][  T237]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.842508][  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))
[   10.842510][  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))
[   10.842514][  T237]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.842518][  T237]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.842520][  T237]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.842525][  T237]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.842528][  T237]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.842532][  T237]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.842538][  T237]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.842540][  T237]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.842542][  T237]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.842544][  T237]  ? move_addr_to_kernel (net/socket.c:258)
[   10.842551][  T237]  ___sys_sendmsg (net/socket.c:2767)
[   10.842554][  T237]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.842570][  T237]  __sys_sendmsg (net/socket.c:2799)
[   10.842573][  T237]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.842580][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.842583][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.842586][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.842589][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.842591][  T237] RIP: 0033:0x7fc4d0c0554e
[   10.842594][  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
[   10.842596][  T237] RSP: 002b:00007ffe52a6a030 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.842599][  T237] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc4d0c0554e
[   10.842601][  T237] RDX: 0000000000000000 RSI: 00007ffe52a6a0e0 RDI: 0000000000000005
[   10.842602][  T237] RBP: 00007ffe52a6a040 R08: 0000000000000000 R09: 0000000000000000
[   10.842602][  T237] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91103b
[   10.842603][  T237] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe52a6a7a0
| [   16.615516][  T276] softirqs last disabled at (38887): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.615518][  T276] Preemption disabled at:
| [   16.615519][  T276] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.615528][  T276] Tainted: [W]=WARN
[   16.615529][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.615530][  T276] Call Trace:
[   16.615532][  T276]  <TASK>
[   16.615534][  T276]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.615539][  T276]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.615542][  T276]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.615546][  T276]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.615550][  T276]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.615555][  T276]  __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))
[   16.615557][  T276]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.615563][  T276]  ? 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)
[   16.615566][  T276]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.615569][  T276]  put_chars (drivers/char/virtio_console.c:1176)
[   16.615571][  T276]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   16.615573][  T276]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.615576][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.615580][  T276]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.615584][  T276]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.615586][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.615588][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.615593][  T276]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.615594][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.615597][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.615600][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.615604][  T276]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.615608][  T276]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.615610][  T276]  ? 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))
[   16.615613][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.615615][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.615619][  T276]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.615624][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.615625][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.615631][  T276]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.615633][  T276]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.615635][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.615637][  T276]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.615641][  T276]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.615643][  T276]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.615646][  T276]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.615650][  T276]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.615656][  T276]  ? 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
[   16.615660][  T276]  _printk (kernel/printk/printk.c:2504)
[   16.615663][  T276]  ? snapshot_read.cold (user.c:?)
[   16.615670][  T276]  ? 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)
[   16.615673][  T276] gact_init_module (net/sched/act_gact.c:180) act_gact
[   16.615675][  T276]  do_one_initcall (init/main.c:1357)
[   16.615678][  T276]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   16.615683][  T276]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   16.615687][  T276]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   16.615691][  T276]  do_init_module (kernel/module/main.c:3117)
[   16.615695][  T276]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   16.615700][  T276]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   16.615703][  T276]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   16.615707][  T276]  load_module (kernel/module/main.c:3593)
[   16.615715][  T276]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   16.615719][  T276]  ? __ia32_sys_fsconfig (??:?)
[   16.615721][  T276]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   16.615725][  T276]  ? backing_file_read_iter (fs/backing-file.c:211)
[   16.615728][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.615732][  T276]  init_module_from_file (kernel/module/main.c:3790)
[   16.615736][  T276]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   16.615744][  T276]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.615748][  T276]  ? 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)
[   16.615751][  T276]  idempotent_init_module (kernel/module/main.c:3802)
[   16.615757][  T276]  ? init_module_from_file (kernel/module/main.c:3791)
[   16.615764][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.615767][  T276]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   16.615773][  T276]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   16.615776][  T276]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.615780][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.615781][  T276]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.615785][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.615787][  T276] RIP: 0033:0x7fc2f199437d
[   16.615791][  T276] 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
[   16.615792][  T276] RSP: 002b:00007ffd7b893878 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.615795][  T276] RAX: ffffffffffffffda RBX: 00005637456ee810 RCX: 00007fc2f199437d
[   16.615796][  T276] RDX: 0000000000000000 RSI: 0000563709c22ffd RDI: 0000000000000000
[   16.615797][  T276] RBP: 00007ffd7b893910 R08: 0000000000000000 R09: 0000000000000000
[   16.615798][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563709c22ffd
[   16.615799][  T276] R13: 00005637456ee960 R14: 0000000000040000 R15: 0000000000000000
| [   21.748325][  T609] softirqs last disabled at (20266): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73) bridge
| [   21.748332][  T609] Preemption disabled at:
| [   21.748333][  T609] 0x0
| [   21.748343][  T609] Tainted: [W]=WARN
[   21.748344][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.748346][  T609] Call Trace:
[   21.748347][  T609]  <TASK>
[   21.748349][  T609]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.748355][  T609]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.748360][  T609]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.748364][  T609]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.748369][  T609]  __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))
[   21.748372][  T609]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.748377][  T609]  ? 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)
[   21.748380][  T609]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.748383][  T609]  put_chars (drivers/char/virtio_console.c:1176)
[   21.748385][  T609]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   21.748388][  T609]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.748391][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.748394][  T609]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.748399][  T609]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.748401][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748403][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748408][  T609]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.748409][  T609]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.748412][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748415][  T609]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.748419][  T609]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.748423][  T609]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.748425][  T609]  ? 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))
[   21.748428][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748430][  T609]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.748434][  T609]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.748438][  T609]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.748440][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748446][  T609]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.748448][  T609]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.748450][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748453][  T609]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.748456][  T609]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.748458][  T609]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.748462][  T609]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.748465][  T609]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.748469][  T609]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.748471][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.748475][  T609]  _printk (kernel/printk/printk.c:2504)
[   21.748478][  T609]  ? snapshot_read.cold (user.c:?)
[   21.748486][  T609] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   21.748497][  T609] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   21.748506][  T609] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[   21.748514][  T609] br_dev_stop (net/bridge/br_device.c:193) bridge
[   21.748523][  T609]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.748526][  T609]  __dev_close_many (net/core/dev.c:1798)
[   21.748530][  T609]  ? netif_open (net/core/dev.c:1755)
[   21.748532][  T609]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.748534][  T609]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.748538][  T609]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   21.748542][  T609]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   21.748545][  T609]  ? __kernel_text_address (kernel/extable.c:79)
[   21.748547][  T609]  ? write_profile (profile.c:?)
[   21.748549][  T609]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   21.748554][  T609]  netif_change_flags (net/core/dev.c:9877)
[   21.748558][  T609]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   21.748562][  T609]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.748564][  T609]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.748565][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.748567][  T609]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.748570][  T609]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.748573][  T609]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.748575][  T609]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.748577][  T609]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.748580][  T609]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.748582][  T609]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.748585][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748586][  T609]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   21.748589][  T609]  ? ___sys_sendmsg (net/socket.c:2757)
[   21.748594][  T609]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.748596][  T609]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.748598][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748601][  T609]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.748603][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748605][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748607][  T609]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.748611][  T609]  ? __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)
[   21.748614][  T609]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.748616][  T609]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.748619][  T609]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.748625][  T609]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.748630][  T609]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.748635][  T609]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.748637][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748642][  T609]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.748644][  T609]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.748646][  T609]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.748647][  T609]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.748651][  T609]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.748653][  T609]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.748656][  T609]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.748658][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748662][  T609]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.748664][  T609]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.748668][  T609]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.748670][  T609]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.748672][  T609]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.748679][  T609]  ? 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))
[   21.748680][  T609]  ? 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))
[   21.748684][  T609]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.748688][  T609]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.748691][  T609]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.748695][  T609]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.748699][  T609]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.748703][  T609]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   21.748709][  T609]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   21.748711][  T609]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.748713][  T609]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   21.748715][  T609]  ? move_addr_to_kernel (net/socket.c:258)
[   21.748722][  T609]  ___sys_sendmsg (net/socket.c:2767)
[   21.748725][  T609]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.748741][  T609]  __sys_sendmsg (net/socket.c:2799)
[   21.748744][  T609]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.748750][  T609]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.748758][  T609]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.748760][  T609]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.748764][  T609]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.748767][  T609] RIP: 0033:0x7f18cad3e54e
[   21.748769][  T609] 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
[   21.748771][  T609] RSP: 002b:00007ffca03d8cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.748774][  T609] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f18cad3e54e
[   21.748775][  T609] RDX: 0000000000000000 RSI: 00007ffca03d8d60 RDI: 0000000000000005
[   21.748776][  T609] RBP: 00007ffca03d8cc0 R08: 0000000000000000 R09: 0000000000000000
[   21.748777][  T609] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911046


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