[ 920.119239][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 920.119638][ C3] CPU: 3 PID: 5980 Comm: perl Not tainted 6.9.0-rc1-virtme #1
[ 920.119903][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 920.120290][ C3] Call Trace:
[ 920.120429][ C3]
[ 920.120522][ C3] dump_stack_lvl+0x82/0xd0
[ 920.120712][ C3] __report_bad_irq+0x5f/0x180
[ 920.120900][ C3] note_interrupt+0x6b3/0x860
[ 920.121078][ C3] handle_irq_event+0x16d/0x1c0
[ 920.121253][ C3] handle_edge_irq+0x1fa/0xb60
[ 920.121433][ C3] __common_interrupt+0x7c/0x180
[ 920.121610][ C3] common_interrupt+0x7e/0x90
[ 920.121787][ C3]
[ 920.121893][ C3]
[ 920.121988][ C3] asm_common_interrupt+0x26/0x40
[ 920.122161][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 920.122392][ C3] Code: 10 e8 61 39 9b fd 48 89 ef e8 99 a9 9b 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 45 af 8f 61 <74> 0e 5b 5d c3 cc cc cc cc e8 8f a3 be fd eb dc 0f 1f 44 00 00 5b
[ 920.122989][ C3] RSP: 0018:ffffc90002cafa80 EFLAGS: 00000286
[ 920.123205][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff43284f0
[ 920.123473][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9e7418d1
[ 920.123755][ C3] RBP: ffffffffa22231a0 R08: 0000000000000001 R09: fffffbfff43236b0
[ 920.124017][ C3] R10: ffffffffa191b587 R11: 0000000000000000 R12: 0000000000000ea8
[ 920.124275][ C3] R13: ffffffffa22232a8 R14: ffffffffa22231a0 R15: ffff8880027b0000
[ 920.124540][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 920.124766][ C3] uart_write+0x224/0x450
[ 920.124916][ C3] process_output_block+0x13e/0x790
[ 920.125106][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 920.125340][ C3] n_tty_write+0x412/0x7a0
[ 920.125527][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 920.125725][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 920.125909][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 920.126095][ C3] ? iterate_tty_write+0x95/0x540
[ 920.126274][ C3] ? lock_acquire+0x32/0xc0
[ 920.126455][ C3] ? iterate_tty_write+0x95/0x540
[ 920.126646][ C3] iterate_tty_write+0x228/0x540
[ 920.126835][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 920.127017][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 920.127206][ C3] vfs_write+0x9e5/0x10a0
[ 920.127350][ C3] ? __pfx___lock_release+0x10/0x10
[ 920.127535][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 920.127730][ C3] ? __pfx_vfs_write+0x10/0x10
[ 920.127920][ C3] ? clockevents_program_event+0xf6/0x300
[ 920.128119][ C3] ? ktime_get+0xb3/0x190
[ 920.128271][ C3] ? __fget_light+0x53/0x1e0
[ 920.128454][ C3] ? clockevents_program_event+0x1ea/0x300
[ 920.128693][ C3] ksys_write+0xf5/0x1e0
[ 920.128829][ C3] ? __pfx_ksys_write+0x10/0x10
[ 920.129022][ C3] do_syscall_64+0xc6/0x1e0
[ 920.129210][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 920.129432][ C3] RIP: 0033:0x7fa20c9d9957
[ 920.129619][ 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
[ 920.130244][ C3] RSP: 002b:00007ffee88bf8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 920.130519][ C3] RAX: ffffffffffffffda RBX: 000055bf855fb1b0 RCX: 00007fa20c9d9957
[ 920.130790][ C3] RDX: 0000000000000001 RSI: 000055bf855fb1b0 RDI: 0000000000000001
[ 920.131065][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 920.131335][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055bf855e7590
[ 920.131598][ C3] R13: 000055bf855c82a0 R14: 0000000000000001 R15: 000055bf855e7590
[ 920.131888][ C3]
[ 920.132025][ C3] handlers:
[ 920.132163][ C3] [] serial8250_interrupt
[ 920.132558][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr