[  440.228154] irq 4: nobody cared (try booting with the "irqpoll" option)
[  440.228290] CPU: 3 PID: 5018 Comm: perl Not tainted 6.9.0-rc3-virtme #1
[  440.228345] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  440.228443] Call Trace:
[  440.228470]  <IRQ>
[  440.228493]  dump_stack_lvl+0x55/0x70
[  440.228534]  __report_bad_irq+0x2b/0xc0
[  440.228573]  note_interrupt+0x2a7/0x2f0
[  440.228604]  handle_irq_event+0x72/0x80
[  440.228637]  handle_edge_irq+0x8b/0x230
[  440.228665]  __common_interrupt+0x3e/0xb0
[  440.228701]  common_interrupt+0x81/0xa0
[  440.228738]  </IRQ>
[  440.228762]  <TASK>
[  440.228781]  asm_common_interrupt+0x26/0x40
[  440.228819] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  440.228867] 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 f4 cd 7c <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  440.229008] RSP: 0018:ffff996480983d38 EFLAGS: 00000286
[  440.229054] RAX: 0000000000000000 RBX: ffffffff846ce240 RCX: 0000000000000017
[  440.229119] RDX: ffffffff82f49ece RSI: 0000000000000282 RDI: ffffffff846ce240
[  440.229176] RBP: 0000000000000001 R08: 00000066900ced08 R09: 0000000000000001
[  440.229233] R10: ffff8a2cc2db4df8 R11: 0000000000000000 R12: 0000000000000001
[  440.229289] R13: 0000000000000000 R14: ffff8a2cc2db5001 R15: ffff8a2cc1fe4000
[  440.229347]  ? rpm_suspend+0x1ae/0x5e0
[  440.229391]  uart_write+0x103/0x1d0
[  440.229426]  n_tty_write+0x1a4/0x520
[  440.229461]  ? __pfx_woken_wake_function+0x10/0x10
[  440.229508]  file_tty_write.constprop.0+0x15b/0x340
[  440.229551]  vfs_write+0x336/0x460
[  440.229590]  ksys_write+0x63/0xe0
[  440.229622]  do_syscall_64+0xa8/0x1b0
[  440.229650]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.229698] RIP: 0033:0x7fec43c9d957
[  440.229733] 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
[  440.229864] RSP: 002b:00007fff16ef3498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  440.229927] RAX: ffffffffffffffda RBX: 0000557cdeb70110 RCX: 00007fec43c9d957
[  440.229989] RDX: 0000000000000001 RSI: 0000557cdeb70110 RDI: 0000000000000001
[  440.230042] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  440.230096] R10: 0000000000000001 R11: 0000000000000246 R12: 0000557cdeb5c560
[  440.230152] R13: 0000557cdeb3d2a0 R14: 0000000000000001 R15: 0000557cdeb5c560
[  440.230211]  </TASK>
[  440.230230] handlers:
[  440.230248] [<000000000ed73412>] serial8250_interrupt
[  440.230292] Disabling IRQ #4

WAIT TIMEOUT stderr

Ctrl-C stderr

Ctrl-C stderr

WAIT TIMEOUT stderr