[  443.999695] irq 4: nobody cared (try booting with the "irqpoll" option)
[  443.999807] CPU: 3 UID: 0 PID: 5452 Comm: perl Not tainted 6.11.0-virtme #1
[  443.999865] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  443.999942] Call Trace:
[  443.999964]  <IRQ>
[  443.999985]  dump_stack_lvl+0x55/0x70
[  444.000019]  __report_bad_irq+0x2b/0xc0
[  444.000049]  note_interrupt+0x2a7/0x2f0
[  444.000075]  handle_irq_event+0x72/0x80
[  444.000100]  handle_edge_irq+0x8b/0x230
[  444.000125]  __common_interrupt+0x3c/0xb0
[  444.000154]  common_interrupt+0x80/0x90
[  444.000182]  </IRQ>
[  444.000200]  <TASK>
[  444.000219]  asm_common_interrupt+0x26/0x40
[  444.000251] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  444.000286] 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 cc 6b 68 49 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  444.000382] RSP: 0018:ffffaf160063bd60 EFLAGS: 00000286
[  444.000417] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
[  444.000462] RDX: ffffffffb659d67d RSI: 0000000000000282 RDI: ffffffffb7f08120
[  444.000507] RBP: ffff8eb4c1de0000 R08: 00000067729f1346 R09: 0000000000000001
[  444.000552] R10: ffff8eb4c26dcdf8 R11: 0000000000000000 R12: 0000000000000001
[  444.000597] R13: ffffffffb7f08120 R14: 0000000000000282 R15: ffff8eb4c26dcc00
[  444.000640]  ? rpm_suspend+0x1ad/0x5e0
[  444.000675]  uart_write+0xb2/0x270
[  444.000703]  n_tty_write+0x1a3/0x520
[  444.000731]  ? __pfx_woken_wake_function+0x10/0x10
[  444.000764]  file_tty_write.constprop.0+0x147/0x330
[  444.000805]  vfs_write+0x335/0x470
[  444.000836]  ksys_write+0x63/0xe0
[  444.000859]  do_syscall_64+0x9e/0x1a0
[  444.000887]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.000920] RIP: 0033:0x7f20a9230957
[  444.000946] 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
[  444.001043] RSP: 002b:00007ffedb097df8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  444.001087] RAX: ffffffffffffffda RBX: 000055838cf911f0 RCX: 00007f20a9230957
[  444.001132] RDX: 0000000000000001 RSI: 000055838cf911f0 RDI: 0000000000000001
[  444.001177] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  444.001222] R10: 0000000000000001 R11: 0000000000000246 R12: 000055838cf7d580
[  444.001267] R13: 000055838cf5e2a0 R14: 0000000000000001 R15: 000055838cf7d580
[  444.001313]  </TASK>
[  444.001330] handlers:
[  444.001348] [<0000000010a729b8>] serial8250_interrupt
[  444.001384] Disabling IRQ #4
[  480.714809] tc (6676) used greatest stack depth: 11992 bytes left