======================================
| [   12.526440][   T89] softirqs last disabled at (427652): unix_release_sock (./include/net/sock.h:2138 net/unix/af_unix.c:678)
| [   12.526442][   T89] Preemption disabled at:
| [   12.526442][   T89] 0x0
| [   12.526452][   T89] Tainted: [W]=WARN
[   12.526453][   T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.526455][   T89] Call Trace:
[   12.526456][   T89]  <TASK>
[   12.526457][   T89]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.526463][   T89]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.526467][   T89]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.526471][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526475][   T89]  __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))
[   12.526479][   T89]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.526481][   T89]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.526486][   T89]  ? 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)
[   12.526487][   T89]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.526490][   T89]  put_chars (drivers/char/virtio_console.c:1176)
[   12.526492][   T89]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.526494][   T89]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.526497][   T89]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   12.526499][   T89]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   12.526501][   T89]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.526505][   T89]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.526507][   T89]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.526508][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526510][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526512][   T89]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.526514][   T89]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.526516][   T89]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.526518][   T89]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   12.526519][   T89]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   12.526521][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526523][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526524][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526526][   T89]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.526528][   T89]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   12.526530][   T89]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.526532][   T89]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.526534][   T89]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.526536][   T89]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.526537][   T89]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.526539][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526541][   T89]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   12.526542][   T89]  ? 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))
[   12.526543][   T89]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:96)
[   12.526546][   T89]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.526547][   T89]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.526549][   T89]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.526552][   T89]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.526553][   T89]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   12.526555][   T89]  ? forget_original_parent (kernel/exit.c:635 kernel/exit.c:740)
[   12.526558][   T89]  _printk (kernel/printk/printk.c:2504)
[   12.526561][   T89]  ? snapshot_read.cold (user.c:?)
[   12.526562][   T89]  ? 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)
[   12.526564][   T89]  ? 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)
[   12.526566][   T89]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.526568][   T89]  ? 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)
[   12.526569][   T89]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   12.526572][   T89]  ? exit_notify (kernel/exit.c:780)
[   12.526573][   T89]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3))
[   12.526576][   T89]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.526578][   T89]  do_group_exit (kernel/exit.c:1151)
[   12.526580][   T89]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   12.526581][   T89]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   12.526583][   T89]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.526585][   T89]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.526587][   T89]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.526590][   T89] RIP: 0033:0x7fd6f78271b8
[   12.526592][   T89] Code: Unable to access opcode bytes at 0x7fd6f782718e.

Code starting with the faulting instruction
===========================================
[   12.526593][   T89] RSP: 002b:00007fff61ecc3f8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7
[   12.526596][   T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd6f78271b8
[   12.526597][   T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000
[   12.526598][   T89] RBP: 00007fff61ecc580 R08: 00005595e37e79e8 R09: 0000000000000000
[   12.526599][   T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000


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