[ 934.927287][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 934.927679][ C3] CPU: 3 PID: 3396 Comm: perl Not tainted 6.9.0-virtme #1
[ 934.927882][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 934.928238][ C3] Call Trace:
[ 934.928369][ C3]
[ 934.928455][ C3] dump_stack_lvl+0x82/0xd0
[ 934.928625][ C3] __report_bad_irq+0x5f/0x180
[ 934.928795][ C3] note_interrupt+0x6b3/0x860
[ 934.928957][ C3] handle_irq_event+0x16d/0x1c0
[ 934.929117][ C3] handle_edge_irq+0x1fa/0xb60
[ 934.929279][ C3] __common_interrupt+0x82/0x170
[ 934.929438][ C3] common_interrupt+0x7e/0x90
[ 934.929598][ C3]
[ 934.929680][ C3]
[ 934.929760][ C3] asm_common_interrupt+0x26/0x40
[ 934.929931][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 934.930140][ C3] Code: 10 e8 d1 c5 93 fd 48 89 ef e8 49 36 94 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 e5 1c c8 61 <74> 0e 5b 5d c3 cc cc cc cc e8 bf a9 b7 fd eb dc 0f 1f 44 00 00 5b
[ 934.930694][ C3] RSP: 0018:ffffc90000aefa88 EFLAGS: 00000286
[ 934.930902][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff42ae733
[ 934.931143][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9e3bab31
[ 934.931390][ C3] RBP: ffffffffa1e54580 R08: 0000000000000001 R09: fffffbfff42a98a8
[ 934.931627][ C3] R10: ffffffffa154c547 R11: 0000000000000000 R12: 00000000000008f1
[ 934.931862][ C3] R13: ffffffffa1e54688 R14: ffffffffa1e54580 R15: ffff8880029e0000
[ 934.932117][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 934.932314][ C3] uart_write+0x224/0x450
[ 934.932440][ C3] process_output_block+0x13e/0x790
[ 934.932594][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 934.932847][ C3] n_tty_write+0x412/0x7a0
[ 934.933026][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 934.933197][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 934.933365][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 934.933541][ C3] ? iterate_tty_write+0x95/0x540
[ 934.933714][ C3] ? lock_acquire+0x32/0xc0
[ 934.933882][ C3] ? iterate_tty_write+0x95/0x540
[ 934.934053][ C3] iterate_tty_write+0x228/0x540
[ 934.934223][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 934.934395][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 934.934570][ C3] vfs_write+0x9dc/0x1070
[ 934.934712][ C3] ? __pfx___lock_release+0x10/0x10
[ 934.934883][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 934.935057][ C3] ? __might_fault+0xc3/0x170
[ 934.935227][ C3] ? lock_acquire+0x32/0xc0
[ 934.935399][ C3] ? __pfx_vfs_write+0x10/0x10
[ 934.935573][ C3] ? __might_fault+0x11b/0x170
[ 934.935751][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 934.935971][ C3] ? __fget_light+0x53/0x1e0
[ 934.936147][ C3] ksys_write+0xf5/0x1e0
[ 934.936280][ C3] ? __pfx_ksys_write+0x10/0x10
[ 934.936458][ C3] do_syscall_64+0xc3/0x1d0
[ 934.936630][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 934.936845][ C3] RIP: 0033:0x7f03328f3957
[ 934.937044][ 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
[ 934.937633][ C3] RSP: 002b:00007ffe9b740618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 934.937889][ C3] RAX: ffffffffffffffda RBX: 000055b89858d1e0 RCX: 00007f03328f3957
[ 934.938137][ C3] RDX: 0000000000000001 RSI: 000055b89858d1e0 RDI: 0000000000000001
[ 934.938381][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 934.938623][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055b8985795c0
[ 934.938880][ C3] R13: 000055b89855a2a0 R14: 0000000000000001 R15: 000055b8985795c0
[ 934.939137][ C3]
[ 934.939265][ C3] handlers:
[ 934.939397][ C3] [] serial8250_interrupt
[ 934.939742][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr