[  282.196345] irq 4: nobody cared (try booting with the "irqpoll" option)
[  282.196493] CPU: 3 PID: 3752 Comm: perl Not tainted 6.9.0-rc2-virtme #1
[  282.196553] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  282.196645] Call Trace:
[  282.196677]  <IRQ>
[  282.196704]  dump_stack_lvl+0x55/0x70
[  282.196747]  __report_bad_irq+0x2b/0xc0
[  282.196784]  note_interrupt+0x2a7/0x2f0
[  282.196819]  handle_irq_event+0x72/0x80
[  282.196855]  handle_edge_irq+0x8b/0x230
[  282.196890]  __common_interrupt+0x3e/0xb0
[  282.196925]  common_interrupt+0x81/0xa0
[  282.196964]  </IRQ>
[  282.196988]  <TASK>
[  282.197007]  asm_common_interrupt+0x26/0x40
[  282.197042] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  282.197089] 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 bc 54 ee 7d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  282.197223] RSP: 0018:ffff970bc05e3d38 EFLAGS: 00000286
[  282.197268] RAX: 0000000000000000 RBX: ffffffff834cb240 RCX: 0000000000000017
[  282.197330] RDX: ffffffff81d46b1e RSI: 0000000000000282 RDI: ffffffff834cb240
[  282.197382] RBP: 0000000000000001 R08: 00000041c468d371 R09: 0000000000000001
[  282.197434] R10: ffff8881020875f8 R11: 0000000000000000 R12: 0000000000000001
[  282.197486] R13: 0000000000000000 R14: ffff888102086801 R15: ffff888102060000
[  282.197547]  ? rpm_suspend+0x1ae/0x5e0
[  282.197590]  uart_write+0x103/0x1d0
[  282.197625]  n_tty_write+0x1a4/0x520
[  282.197661]  ? __pfx_woken_wake_function+0x10/0x10
[  282.197704]  file_tty_write.constprop.0+0x15b/0x340
[  282.197750]  vfs_write+0x336/0x460
[  282.197784]  ksys_write+0x63/0xe0
[  282.197818]  do_syscall_64+0xad/0x1b0
[  282.197853]  entry_SYSCALL_64_after_hwframe+0x72/0x7a
[  282.197910] RIP: 0033:0x7fc766e92957
[  282.197941] 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
[  282.198070] RSP: 002b:00007ffc9e428d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  282.198131] RAX: ffffffffffffffda RBX: 0000556d06b08e70 RCX: 00007fc766e92957
[  282.198190] RDX: 0000000000000001 RSI: 0000556d06b08e70 RDI: 0000000000000001
[  282.198244] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  282.198303] R10: 0000000000000001 R11: 0000000000000246 R12: 0000556d06af5530
[  282.198358] R13: 0000556d06ad62a0 R14: 0000000000000001 R15: 0000556d06af5530
[  282.198414]  </TASK>
[  282.198439] handlers:
[  282.198459] [<00000000c910675a>] serial8250_interrupt
[  282.198512] Disabling IRQ #4

WAIT TIMEOUT stderr

Ctrl-C stderr

Ctrl-C stderr

WAIT TIMEOUT stderr