[ 1104.919667][T22549] tc (22549) used greatest stack depth: 23696 bytes left
[ 1121.437442][ C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1121.437788][ C0] CPU: 0 UID: 0 PID: 22085 Comm: perl Not tainted 6.19.0-rc6-virtme #1 PREEMPT(full)
[ 1121.437792][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1121.437794][ C0] Call Trace:
[ 1121.437796][ C0]
[ 1121.437797][ C0] dump_stack_lvl+0x6f/0xa0
[ 1121.437807][ C0] __report_bad_irq+0x66/0x161
[ 1121.437812][ C0] note_interrupt.cold+0x21/0xe7
[ 1121.437814][ C0] ? serial8250_get_port+0x50/0x50
[ 1121.437818][ C0] ? poll_spurious_irqs+0x140/0x140
[ 1121.437831][ C0] handle_irq_event+0x166/0x1c0
[ 1121.437833][ C0] handle_edge_irq+0x2ec/0x880
[ 1121.437837][ C0] __common_interrupt+0xae/0x270
[ 1121.437841][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x3d0
[ 1121.437844][ C0] common_interrupt+0xb0/0xf0
[ 1121.437848][ C0]
[ 1121.437849][ C0]
[ 1121.437850][ C0] asm_common_interrupt+0x26/0x40
[ 1121.437853][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80
[ 1121.437857][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 f1 68 de fd 48 89 df e8 59 ba de fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 f0 f1 d1 fd 65 8b 05 29 34 05 02 85 c0 74 12 5b
[ 1121.437858][ C0] RSP: 0018:ffa00000049bfa70 EFLAGS: 00000246
[ 1121.437862][ C0] RAX: 0000000000000082 RBX: ffffffff9c993520 RCX: ffffffff998fec13
[ 1121.437863][ C0] RDX: ff11000014f9c540 RSI: ffffffff9a1b67f7 RDI: ffffffff99c6b280
[ 1121.437864][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
[ 1121.437865][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff9c993628
[ 1121.437865][ C0] R13: 0000000000000001 R14: ffffffff9c993660 R15: ff1100000217b400
[ 1121.437869][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80
[ 1121.437873][ C0] uart_write+0x21d/0x940
[ 1121.437878][ C0] process_output_block+0x117/0x6e0
[ 1121.437883][ C0] n_tty_write+0x3a8/0x8f0
[ 1121.437885][ C0] ? _copy_from_iter+0x1b6/0x1580
[ 1121.437890][ C0] ? n_tty_receive_signal_char+0x110/0x110
[ 1121.437893][ C0] ? _mutex_trylock_nest_lock+0x21a/0x340
[ 1121.437895][ C0] ? __init_waitqueue_head+0x160/0x160
[ 1121.437899][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 1121.437901][ C0] ? tty_ldisc_ref_wait+0x28/0x80
[ 1121.437906][ C0] iterate_tty_write+0x27d/0x550
[ 1121.437909][ C0] ? tty_ldisc_ref_wait+0x28/0x80
[ 1121.437912][ C0] file_tty_write.isra.0+0x1a2/0x240
[ 1121.437914][ C0] ? redirected_tty_write+0xd0/0xd0
[ 1121.437916][ C0] new_sync_write+0x308/0x6f0
[ 1121.437919][ C0] ? new_sync_read+0x3bb/0x6f0
[ 1121.437923][ C0] ? new_sync_read+0x6f0/0x6f0
[ 1121.437924][ C0] ? generic_atomic_write_valid+0x150/0x150
[ 1121.437928][ C0] ? __lock_release.isra.0+0x59/0x170
[ 1121.437933][ C0] vfs_write+0x65e/0xbb0
[ 1121.437935][ C0] ? vfs_read+0x3cc/0x790
[ 1121.437939][ C0] ksys_write+0xff/0x200
[ 1121.437942][ C0] ? __ia32_sys_read+0xc0/0xc0
[ 1121.437945][ C0] ? rcu_is_watching+0x15/0xd0
[ 1121.437949][ C0] do_syscall_64+0xbd/0xfc0
[ 1121.437951][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1121.437953][ C0] RIP: 0033:0x7f9922ec2c5e
[ 1121.437957][ C0] Code: 4d 89 d8 e8 34 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 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 1121.437958][ C0] RSP: 002b:00007ffef761b200 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1121.437959][ C0] RAX: ffffffffffffffda RBX: 000056144c80f430 RCX: 00007f9922ec2c5e
[ 1121.437960][ C0] RDX: 0000000000000001 RSI: 000056144c80f430 RDI: 0000000000000001
[ 1121.437961][ C0] RBP: 00007ffef761b210 R08: 0000000000000000 R09: 0000000000000000
[ 1121.437962][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[ 1121.437962][ C0] R13: 000056144c7d0010 R14: 0000000000000001 R15: 000056144c80f430
[ 1121.437968][ C0]
[ 1121.437969][ C0] handlers:
[ 1121.446746][ C0] [] serial8250_interrupt
[ 1121.447047][ C0] Disabling IRQ #51