======================================
| [   11.878660][  T228] softirqs last disabled at (46674): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   11.878663][  T228] Preemption disabled at:
| [   11.878663][  T228] 0x0
| [   11.878674][  T228] Tainted: [W]=WARN
[   11.878675][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.878677][  T228] Call Trace:
[   11.878678][  T228]  <TASK>
[   11.878680][  T228]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.878686][  T228]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.878691][  T228]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.878695][  T228]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.878699][  T228]  __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))
[   11.878701][  T228]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.878707][  T228]  ? 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)
[   11.878710][  T228]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.878714][  T228]  put_chars (drivers/char/virtio_console.c:1176)
[   11.878716][  T228]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.878717][  T228]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.878721][  T228]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.878726][  T228]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.878734][  T228]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.878736][  T228]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.878738][  T228]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.878742][  T228]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.878746][  T228]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.878748][  T228]  ? 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))
[   11.878751][  T228]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.878753][  T228]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.878757][  T228]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.878761][  T228]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.878763][  T228]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.878768][  T228]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.878770][  T228]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.878772][  T228]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.878774][  T228]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.878778][  T228]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.878779][  T228]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.878782][  T228]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.878785][  T228]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.878788][  T228]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.878792][  T228]  _printk (kernel/printk/printk.c:2504)
[   11.878795][  T228]  ? snapshot_read.cold (user.c:?)
[   11.878798][  T228]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.878800][  T228]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.878804][  T228]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.878807][  T228]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.878811][  T228]  ? exit_notify (kernel/exit.c:780)
[   11.878812][  T228]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.878815][  T228]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.878818][  T228]  do_group_exit (kernel/exit.c:1151)
[   11.878821][  T228]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.878823][  T228]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.878825][  T228]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.878829][  T228]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.878832][  T228]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.878834][  T228] RIP: 0033:0x7fc4753cf1b8
[   11.878836][  T228] Code: Unable to access opcode bytes at 0x7fc4753cf18e.

Code starting with the faulting instruction
===========================================
[   11.878837][  T228] RSP: 002b:00007fffbc9dfc88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.878840][  T228] RAX: ffffffffffffffda RBX: 00007fc4754fff88 RCX: 00007fc4753cf1b8
[   11.878841][  T228] RDX: 00007fc475119fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.878842][  T228] RBP: 00007fffbc9dfce0 R08: 0000000000000000 R09: 0000000000000000
[   11.878843][  T228] R10: 00007fffbc9dfaa0 R11: 0000000000000246 R12: 0000000000000001


Finger prints:
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print