[ 3133.703525][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 3133.703962][ C3] CPU: 3 PID: 15796 Comm: perl Not tainted 6.8.0-rc5-virtme #1
[ 3133.704226][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 3133.704582][ C3] Call Trace:
[ 3133.704707][ C3]
[ 3133.704794][ C3] dump_stack_lvl+0x64/0xb0
[ 3133.704969][ C3] __report_bad_irq+0x5f/0x180
[ 3133.705136][ C3] note_interrupt+0x6b3/0x860
[ 3133.705302][ C3] handle_irq_event+0x16d/0x1c0
[ 3133.705461][ C3] handle_edge_irq+0x1fa/0xb60
[ 3133.705628][ C3] __common_interrupt+0x7c/0x180
[ 3133.705792][ C3] common_interrupt+0x7e/0x90
[ 3133.705951][ C3]
[ 3133.706037][ C3]
[ 3133.706124][ C3] asm_common_interrupt+0x26/0x40
[ 3133.706295][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 3133.706498][ C3] Code: 10 e8 f1 15 a4 fd 48 89 ef e8 19 82 a4 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 15 a8 d9 67 <74> 0e 5b 5d c3 cc cc cc cc e8 3f 3e c6 fd eb dc 0f 1f 44 00 00 5b
[ 3133.707050][ C3] RSP: 0018:ffffc90003fffa88 EFLAGS: 00000286
[ 3133.707257][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff3698d03
[ 3133.707512][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff982a0ac1
[ 3133.707751][ C3] RBP: ffffffff9bda4d20 R08: 0000000000000001 R09: fffffbfff3693e78
[ 3133.707989][ C3] R10: ffffffff9b49f3c7 R11: 0000000000000000 R12: 0000000000000502
[ 3133.708227][ C3] R13: ffffffff9bda4e28 R14: ffffffff9bda4d20 R15: ffff888005280000
[ 3133.708489][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 3133.708696][ C3] uart_write+0x220/0x440
[ 3133.708824][ C3] process_output_block+0x13e/0x790
[ 3133.708981][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 3133.709186][ C3] n_tty_write+0x414/0x7a0
[ 3133.709355][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 3133.709522][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 3133.709677][ C3] ? lock_acquire+0x1c1/0x220
[ 3133.709841][ C3] ? iterate_tty_write+0x95/0x540
[ 3133.710001][ C3] iterate_tty_write+0x229/0x540
[ 3133.710161][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 3133.710334][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 3133.710503][ C3] vfs_write+0x9e9/0x10a0
[ 3133.710624][ C3] ? lock_acquire+0x1c1/0x220
[ 3133.710781][ C3] ? __pfx_vfs_write+0x10/0x10
[ 3133.710935][ C3] ? __might_fault+0xc6/0x180
[ 3133.711108][ C3] ? __fget_light+0x54/0x1e0
[ 3133.711270][ C3] ksys_write+0xf5/0x1e0
[ 3133.711396][ C3] ? __pfx_ksys_write+0x10/0x10
[ 3133.711561][ C3] do_syscall_64+0xc9/0x1e0
[ 3133.711719][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 3133.711914][ C3] RIP: 0033:0x7f14fc404957
[ 3133.712087][ C3] 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
[ 3133.712621][ C3] RSP: 002b:00007ffd16edd8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 3133.712948][ C3] RAX: ffffffffffffffda RBX: 0000560ee094e0f0 RCX: 00007f14fc404957
[ 3133.713174][ C3] RDX: 0000000000000001 RSI: 0000560ee094e0f0 RDI: 0000000000000001
[ 3133.713404][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 3133.713637][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560ee093a590
[ 3133.713869][ C3] R13: 0000560ee091b2a0 R14: 0000000000000001 R15: 0000560ee093a590
[ 3133.714105][ C3]
[ 3133.714224][ C3] handlers:
[ 3133.714350][ C3] [] serial8250_interrupt
[ 3133.715125][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr