[  485.117077] tc (4721) used greatest stack depth: 11992 bytes left
[  492.844645] irq 4: nobody cared (try booting with the "irqpoll" option)
[  492.844784] CPU: 3 UID: 0 PID: 3871 Comm: perl Not tainted 6.11.0-rc6-virtme #1
[  492.844855] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  492.844956] Call Trace:
[  492.844990]  <IRQ>
[  492.845024]  dump_stack_lvl+0x55/0x70
[  492.845074]  __report_bad_irq+0x2b/0xc0
[  492.845120]  note_interrupt+0x2a7/0x2f0
[  492.845156]  handle_irq_event+0x72/0x80
[  492.845192]  handle_edge_irq+0x8b/0x230
[  492.845227]  __common_interrupt+0x3c/0xb0
[  492.845266]  common_interrupt+0x80/0x90
[  492.845309]  </IRQ>
[  492.845334]  <TASK>
[  492.845362]  asm_common_interrupt+0x26/0x40
[  492.845412] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  492.845469] 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 3c 87 29 48 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  492.845622] RSP: 0018:ffffaa2140e7bd60 EFLAGS: 00000286
[  492.845677] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  492.845749] RDX: ffffffffb798748d RSI: 0000000000000286 RDI: ffffffffb92f9360
[  492.845814] RBP: ffff9b8c81ec8000 R08: 00000072d10c3753 R09: 0000000000000001
[  492.845879] R10: ffff9b8c81efa5f8 R11: 0000000000000000 R12: ffffffffb92f9360
[  492.845942] R13: 0000000000000286 R14: ffff9b8c81efa000 R15: ffff9b8c81efa400
[  492.846007]  ? rpm_suspend+0x1ad/0x5e0
[  492.846053]  uart_write+0x89/0x150
[  492.846098]  n_tty_write+0x1a6/0x520
[  492.846142]  ? __pfx_woken_wake_function+0x10/0x10
[  492.846194]  file_tty_write.constprop.0+0x14d/0x330
[  492.846251]  vfs_write+0x332/0x460
[  492.846300]  ksys_write+0x63/0xe0
[  492.846335]  do_syscall_64+0x9e/0x1a0
[  492.846373]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  492.846426] RIP: 0033:0x7f403e3bf957
[  492.846465] 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
[  492.846619] RSP: 002b:00007ffc9e6c0518 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  492.846689] RAX: ffffffffffffffda RBX: 00005611549651f0 RCX: 00007f403e3bf957
[  492.846752] RDX: 0000000000000001 RSI: 00005611549651f0 RDI: 0000000000000001
[  492.846823] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  492.846894] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561154951580
[  492.846965] R13: 00005611549322a0 R14: 0000000000000001 R15: 0000561154951580
[  492.847037]  </TASK>
[  492.847077] handlers:
[  492.847098] [<000000003cc87a9c>] serial8250_interrupt
[  492.847155] Disabling IRQ #4