======================================
| [   11.881726][   T86] softirqs last disabled at (442280): unix_release_sock (./include/net/sock.h:2138 net/unix/af_unix.c:678)
| [   11.881728][   T86] Preemption disabled at:
| [   11.881729][   T86] 0x0
| [   11.881739][   T86] Tainted: [W]=WARN
[   11.881740][   T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.881741][   T86] Call Trace:
[   11.881743][   T86]  <TASK>
[   11.881744][   T86]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.881750][   T86]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.881754][   T86]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.881758][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881762][   T86]  __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))
[   11.881766][   T86]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.881769][   T86]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.881774][   T86]  ? 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)
[   11.881776][   T86]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.881778][   T86]  put_chars (drivers/char/virtio_console.c:1176)
[   11.881781][   T86]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.881783][   T86]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.881786][   T86]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   11.881788][   T86]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   11.881790][   T86]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.881795][   T86]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.881797][   T86]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.881799][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881800][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881802][   T86]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.881805][   T86]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.881807][   T86]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.881809][   T86]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   11.881811][   T86]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   11.881813][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881815][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881817][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881819][   T86]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.881821][   T86]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   11.881823][   T86]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.881825][   T86]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.881828][   T86]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.881830][   T86]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.881831][   T86]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.881833][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881835][   T86]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   11.881836][   T86]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   11.881838][   T86]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:96)
[   11.881840][   T86]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.881842][   T86]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.881844][   T86]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.881847][   T86]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.881849][   T86]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   11.881851][   T86]  ? forget_original_parent (kernel/exit.c:635 kernel/exit.c:740)
[   11.881854][   T86]  _printk (kernel/printk/printk.c:2504)
[   11.881857][   T86]  ? snapshot_read.cold (user.c:?)
[   11.881859][   T86]  ? 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)
[   11.881861][   T86]  ? 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)
[   11.881863][   T86]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.881865][   T86]  ? 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)
[   11.881867][   T86]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.881870][   T86]  ? exit_notify (kernel/exit.c:780)
[   11.881871][   T86]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3))
[   11.881874][   T86]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.881877][   T86]  do_group_exit (kernel/exit.c:1151)
[   11.881878][   T86]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.881880][   T86]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.881882][   T86]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.881884][   T86]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.881887][   T86]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.881889][   T86] RIP: 0033:0x7f30340271b8
[   11.881891][   T86] Code: Unable to access opcode bytes at 0x7f303402718e.

Code starting with the faulting instruction
===========================================
[   11.881892][   T86] RSP: 002b:00007ffdab7b6828 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7
[   11.881896][   T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f30340271b8
[   11.881898][   T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000
[   11.881899][   T86] RBP: 00007ffdab7b69b0 R08: 00005571ccbdd388 R09: 0000000000000000
[   11.881900][   T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000


Finger prints:
unix_release_sock:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print