[  539.267768] tc (6452) used greatest stack depth: 11592 bytes left
[  547.911968] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1736018351 wd_nsec: 1736017717
[  651.407047] irq 51: nobody cared (try booting with the "irqpoll" option)
[  651.407146] CPU: 0 UID: 0 PID: 2516 Comm: perl Not tainted 6.19.0-rc5-virtme #1 PREEMPT(voluntary) 
[  651.407149] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  651.407150] Call Trace:
[  651.407154]  <IRQ>
[  651.407157]  dump_stack_lvl+0x4d/0x70
[  651.407163]  __report_bad_irq+0x35/0xb8
[  651.407165]  note_interrupt.cold+0x28/0x66
[  651.407167]  handle_irq_event+0x6e/0x80
[  651.407170]  handle_edge_irq+0xbc/0x180
[  651.407171]  __common_interrupt+0x40/0xd0
[  651.407174]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  651.407176]  common_interrupt+0x7a/0x90
[  651.407180]  </IRQ>
[  651.407180]  <TASK>
[  651.407180]  asm_common_interrupt+0x26/0x40
[  651.407183] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  651.407186] Code: 00 66 90 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d e4 a2 e8 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
[  651.407187] RSP: 0018:ff35d48b80effd38 EFLAGS: 00000286
[  651.407189] RAX: 00000000ffffffff RBX: ff1aa56281d84000 RCX: 0000000000000017
[  651.407190] RDX: ffffffff9f9cedb5 RSI: 0000000000000282 RDI: ffffffffa0cc1680
[  651.407190] RBP: 0000000000000001 R08: 0000000000000001 R09: ff1aa56282fc0400
[  651.407191] R10: ff35d48b80effe68 R11: 0000000000000001 R12: ffffffffa0cc1680
[  651.407191] R13: ff35d48b8034d000 R14: ff1aa56282fc0400 R15: 0000000000000282
[  651.407192]  ? rpm_suspend+0x185/0x5e0
[  651.407196]  uart_write+0xb4/0x270
[  651.407199]  n_tty_write+0x155/0x560
[  651.407201]  ? swake_up_all+0xd0/0xd0
[  651.407203]  file_tty_write.isra.0+0x15b/0x2a0
[  651.407205]  vfs_write+0x258/0x4d0
[  651.407208]  ? __hrtimer_run_queues+0x161/0x2a0
[  651.407210]  ksys_write+0x73/0xe0
[  651.407211]  do_syscall_64+0xa4/0xfc0
[  651.407213]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  651.407214] RIP: 0033:0x7f7cbba20c5e
[  651.407216] Code: 4d 89 d8 e8 14 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 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[  651.407216] RSP: 002b:00007ffd682c0a20 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  651.407217] RAX: ffffffffffffffda RBX: 00005601c8d781a0 RCX: 00007f7cbba20c5e
[  651.407218] RDX: 0000000000000001 RSI: 00005601c8d781a0 RDI: 0000000000000001
[  651.407218] RBP: 00007ffd682c0a30 R08: 0000000000000000 R09: 0000000000000000
[  651.407218] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  651.407219] R13: 00005601c8d39010 R14: 0000000000000001 R15: 00005601c8d781a0
[  651.407219]  </TASK>
[  651.407220] handlers:
[  651.408970] [<000000003c785a5e>] serial8250_interrupt
[  651.409014] Disabling IRQ #51