[ 1714.925972][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1714.926370][ C3] CPU: 3 UID: 0 PID: 13250 Comm: perl Not tainted 6.11.0-virtme #1
[ 1714.926643][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1714.927024][ C3] Call Trace:
[ 1714.927170][ C3]
[ 1714.927265][ C3] dump_stack_lvl+0x82/0xd0
[ 1714.927461][ C3] __report_bad_irq+0x5f/0x180
[ 1714.927638][ C3] note_interrupt+0x6b3/0x860
[ 1714.927821][ C3] handle_irq_event+0x16d/0x1c0
[ 1714.927999][ C3] handle_edge_irq+0x1fa/0xb60
[ 1714.928176][ C3] __common_interrupt+0x82/0x170
[ 1714.928362][ C3] common_interrupt+0x7e/0x90
[ 1714.928538][ C3]
[ 1714.928629][ C3]
[ 1714.928732][ C3] asm_common_interrupt+0x26/0x40
[ 1714.928906][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1714.929132][ C3] Code: 10 e8 01 1b 8d fd 48 89 ef e8 a9 8b 8d 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 35 47 41 58 <74> 0e 5b 5d c3 cc cc cc cc e8 7f 44 b1 fd eb dc 0f 1f 44 00 00 5b
[ 1714.929726][ C3] RSP: 0018:ffffc9000260fab8 EFLAGS: 00000286
[ 1714.929948][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff55f7e52
[ 1714.930204][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa7c27f61
[ 1714.930467][ C3] RBP: ffffffffab8802a0 R08: 0000000000000001 R09: fffffbfff55f2f18
[ 1714.930720][ C3] R10: ffffffffaaf978c7 R11: 0000000000000000 R12: ffffffffab8803a8
[ 1714.930972][ C3] R13: ffff8880027a9000 R14: ffffffffab8802a0 R15: 0000000000000286
[ 1714.931237][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1714.931457][ C3] uart_write+0x13e/0x320
[ 1714.931590][ C3] process_output_block+0x13e/0x790
[ 1714.931761][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1714.931989][ C3] n_tty_write+0x412/0x7a0
[ 1714.932182][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1714.932359][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1714.932534][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1714.932704][ C3] ? iterate_tty_write+0x95/0x540
[ 1714.932880][ C3] ? lock_acquire+0x32/0xc0
[ 1714.933046][ C3] ? iterate_tty_write+0x95/0x540
[ 1714.933221][ C3] iterate_tty_write+0x228/0x540
[ 1714.933391][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1714.933570][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 1714.933746][ C3] vfs_write+0xa1b/0x10b0
[ 1714.933880][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1714.934049][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1714.934221][ C3] ? clockevents_program_event+0xf6/0x300
[ 1714.934407][ C3] ? __fget_light+0x53/0x1e0
[ 1714.934580][ C3] ? clockevents_program_event+0x1ea/0x300
[ 1714.934794][ C3] ksys_write+0xf5/0x1e0
[ 1714.934935][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1714.935118][ C3] do_syscall_64+0xc1/0x1d0
[ 1714.935289][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1714.935500][ C3] RIP: 0033:0x7f3a76c5b957
[ 1714.935677][ 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
[ 1714.936276][ C3] RSP: 002b:00007ffc4fbb3798 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1714.936551][ C3] RAX: ffffffffffffffda RBX: 000056534ad7d3f0 RCX: 00007f3a76c5b957
[ 1714.936800][ C3] RDX: 0000000000000001 RSI: 000056534ad7d3f0 RDI: 0000000000000001
[ 1714.937046][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1714.937296][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000056534ad685e0
[ 1714.937541][ C3] R13: 000056534ad492a0 R14: 0000000000000001 R15: 000056534ad685e0
[ 1714.937817][ C3]
[ 1714.937942][ C3] handlers:
[ 1714.938078][ C3] [] serial8250_interrupt
[ 1714.938465][ C3] Disabling IRQ #4