[  641.569759] irq 4: nobody cared (try booting with the "irqpoll" option)
[  641.569890] CPU: 3 UID: 0 PID: 13299 Comm: perl Not tainted 6.11.0-rc1-virtme #1
[  641.569960] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  641.570064] Call Trace:
[  641.570098]  <IRQ>
[  641.570126]  dump_stack_lvl+0x55/0x70
[  641.570165]  __report_bad_irq+0x2b/0xc0
[  641.570200]  note_interrupt+0x2a7/0x2f0
[  641.570231]  handle_irq_event+0x72/0x80
[  641.570270]  handle_edge_irq+0x8b/0x230
[  641.570305]  __common_interrupt+0x3c/0xb0
[  641.570342]  common_interrupt+0x80/0x90
[  641.570377]  </IRQ>
[  641.570398]  <TASK>
[  641.570419]  asm_common_interrupt+0x26/0x40
[  641.570452] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  641.570494] 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 c8 69 6d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  641.570614] RSP: 0018:ffffad8480af3d60 EFLAGS: 00000286
[  641.570659] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  641.570718] RDX: ffffffff9258607d RSI: 0000000000000286 RDI: ffffffff93ef8560
[  641.570777] RBP: ffff9b8442098000 R08: 000000957466d875 R09: 0000000000000001
[  641.570829] R10: ffff9b84421235f8 R11: 0000000000000000 R12: ffffffff93ef8560
[  641.570880] R13: 0000000000000286 R14: ffff9b8442122c00 R15: ffff9b8442123400
[  641.570936]  ? rpm_suspend+0x1ad/0x5e0
[  641.570973]  uart_write+0x89/0x150
[  641.571008]  n_tty_write+0x1a6/0x520
[  641.571043]  ? __pfx_woken_wake_function+0x10/0x10
[  641.571084]  file_tty_write.constprop.0+0x14d/0x330
[  641.571121]  vfs_write+0x332/0x460
[  641.571160]  ksys_write+0x63/0xe0
[  641.571198]  do_syscall_64+0x9e/0x1a0
[  641.571233]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  641.571274] RIP: 0033:0x7f4e0b7c9957
[  641.571306] 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
[  641.571420] RSP: 002b:00007ffdb8957a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  641.571493] RAX: ffffffffffffffda RBX: 00005638ff9a0110 RCX: 00007f4e0b7c9957
[  641.571554] RDX: 0000000000000001 RSI: 00005638ff9a0110 RDI: 0000000000000001
[  641.571620] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  641.571678] R10: 0000000000000001 R11: 0000000000000246 R12: 00005638ff98c560
[  641.571728] R13: 00005638ff96d2a0 R14: 0000000000000001 R15: 00005638ff98c560
[  641.571781]  </TASK>
[  641.571801] handlers:
[  641.571822] [<000000009feb9b7f>] serial8250_interrupt
[  641.571858] Disabling IRQ #4