[  502.910486] irq 4: nobody cared (try booting with the "irqpoll" option)
[  502.910599] CPU: 3 UID: 0 PID: 19687 Comm: perl Not tainted 6.12.0-rc2-virtme #1
[  502.910650] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  502.910736] Call Trace:
[  502.910758]  <IRQ>
[  502.910781]  dump_stack_lvl+0x55/0x70
[  502.910816]  __report_bad_irq+0x2b/0xc0
[  502.910847]  note_interrupt+0x2a7/0x2f0
[  502.910874]  handle_irq_event+0x72/0x80
[  502.910900]  handle_edge_irq+0x8b/0x230
[  502.910925]  __common_interrupt+0x3c/0xb0
[  502.910954]  common_interrupt+0x80/0x90
[  502.910983]  </IRQ>
[  502.911001]  <TASK>
[  502.911014]  asm_common_interrupt+0x26/0x40
[  502.911043] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  502.911088] 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 0c 7b 48 5b <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  502.911202] RSP: 0018:ffffb25680ef3d60 EFLAGS: 00000286
[  502.911238] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
[  502.911282] RDX: ffffffffa479b89d RSI: 0000000000000282 RDI: ffffffffa6109120
[  502.911327] RBP: ffffa05641fc4000 R08: 000000752bad6eba R09: 0000000000000001
[  502.911372] R10: ffffa0564192e9f8 R11: 0000000000000000 R12: 0000000000000001
[  502.911418] R13: ffffffffa6109120 R14: 0000000000000282 R15: ffffa0564192e800
[  502.911470]  ? rpm_suspend+0x1ad/0x5e0
[  502.911512]  uart_write+0xb2/0x270
[  502.911554]  n_tty_write+0x1a3/0x520
[  502.911582]  ? __pfx_woken_wake_function+0x10/0x10
[  502.911616]  file_tty_write.constprop.0+0x147/0x330
[  502.911649]  vfs_write+0x335/0x470
[  502.911680]  ksys_write+0x63/0xe0
[  502.911706]  do_syscall_64+0x9e/0x1a0
[  502.911735]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  502.911768] RIP: 0033:0x7f17cde73957
[  502.911794] 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
[  502.911912] RSP: 002b:00007ffc9db64c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  502.911957] RAX: ffffffffffffffda RBX: 000055ee676381f0 RCX: 00007f17cde73957
[  502.912003] RDX: 0000000000000001 RSI: 000055ee676381f0 RDI: 0000000000000001
[  502.912048] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  502.912100] R10: 0000000000000001 R11: 0000000000000246 R12: 000055ee67624580
[  502.912156] R13: 000055ee676052a0 R14: 0000000000000001 R15: 000055ee67624580
[  502.912225]  </TASK>
[  502.912246] handlers:
[  502.912266] [<00000000d623c1f5>] serial8250_interrupt
[  502.912302] Disabling IRQ #4