[  318.867528] irq 4: nobody cared (try booting with the "irqpoll" option)
[  318.867638] CPU: 3 PID: 3206 Comm: perl Not tainted 6.9.0-rc3-virtme #1
[  318.867687] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  318.867763] Call Trace:
[  318.867787]  <IRQ>
[  318.867809]  dump_stack_lvl+0x55/0x70
[  318.867846]  __report_bad_irq+0x2b/0xc0
[  318.867879]  note_interrupt+0x2a7/0x2f0
[  318.867908]  handle_irq_event+0x72/0x80
[  318.867940]  handle_edge_irq+0x8b/0x230
[  318.867969]  __common_interrupt+0x3e/0xb0
[  318.868002]  common_interrupt+0x81/0xa0
[  318.868034]  </IRQ>
[  318.868052]  <TASK>
[  318.868074]  asm_common_interrupt+0x26/0x40
[  318.868115] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  318.868156] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d dc 14 8e 68 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  318.868267] RSP: 0018:ffffb351405fbd38 EFLAGS: 00000286
[  318.868309] RAX: 0000000000000000 RBX: ffffffff98ace240 RCX: 0000000000000017
[  318.868361] RDX: ffffffff97349ede RSI: 0000000000000282 RDI: ffffffff98ace240
[  318.868411] RBP: 0000000000000001 R08: 0000004a506d1c97 R09: 0000000000000001
[  318.868462] R10: ffffa0ea424fd1f8 R11: 0000000000000000 R12: 0000000000000001
[  318.868514] R13: 0000000000000000 R14: ffffa0ea424fcc01 R15: ffffa0ea41dd4000
[  318.868566]  ? rpm_suspend+0x1ae/0x5e0
[  318.868603]  uart_write+0x103/0x1d0
[  318.868635]  n_tty_write+0x1a4/0x520
[  318.868668]  ? __pfx_woken_wake_function+0x10/0x10
[  318.868708]  file_tty_write.constprop.0+0x15b/0x340
[  318.868744]  vfs_write+0x336/0x460
[  318.868777]  ksys_write+0x63/0xe0
[  318.868805]  do_syscall_64+0xa8/0x1b0
[  318.868834]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  318.868872] RIP: 0033:0x7f7a4fb0c957
[  318.868902] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[  318.869016] RSP: 002b:00007ffdaf532f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  318.869069] RAX: ffffffffffffffda RBX: 000055a3c0eece70 RCX: 00007f7a4fb0c957
[  318.869121] RDX: 0000000000000001 RSI: 000055a3c0eece70 RDI: 0000000000000001
[  318.869172] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  318.869225] R10: 0000000000000001 R11: 0000000000000246 R12: 000055a3c0ed9530
[  318.869280] R13: 000055a3c0eba2a0 R14: 0000000000000001 R15: 000055a3c0ed9530
[  318.869331]  </TASK>
[  318.869352] handlers:
[  318.869373] [<000000007830fae6>] serial8250_interrupt
[  318.869414] Disabling IRQ #4

WAIT TIMEOUT stderr

Ctrl-C stderr

Ctrl-C stderr

WAIT TIMEOUT stderr