[ 902.918514][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 902.918894][ C3] CPU: 3 PID: 9786 Comm: perl Not tainted 6.9.0-rc2-virtme #1
[ 902.919169][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 902.919525][ C3] Call Trace:
[ 902.919649][ C3]
[ 902.919739][ C3] dump_stack_lvl+0x82/0xd0
[ 902.919914][ C3] __report_bad_irq+0x5f/0x180
[ 902.920083][ C3] note_interrupt+0x6b3/0x860
[ 902.920243][ C3] handle_irq_event+0x16d/0x1c0
[ 902.920407][ C3] handle_edge_irq+0x1fa/0xb60
[ 902.920578][ C3] __common_interrupt+0x7c/0x180
[ 902.920740][ C3] common_interrupt+0x7e/0x90
[ 902.920905][ C3]
[ 902.920993][ C3]
[ 902.921073][ C3] asm_common_interrupt+0x26/0x40
[ 902.921239][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 902.921445][ C3] Code: 10 e8 11 f8 9a fd 48 89 ef e8 49 68 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 e5 6e cf 7b <74> 0e 5b 5d c3 cc cc cc cc e8 0f 64 be fd eb dc 0f 1f 44 00 00 5b
[ 902.922043][ C3] RSP: 0018:ffffc90000a1fa80 EFLAGS: 00000286
[ 902.922254][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff0ea8b22
[ 902.922495][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84345931
[ 902.922731][ C3] RBP: ffffffff87e261a0 R08: 0000000000000001 R09: fffffbfff0ea3cb0
[ 902.922966][ C3] R10: ffffffff8751e587 R11: 0000000000000000 R12: 0000000000000533
[ 902.923202][ C3] R13: ffffffff87e262a8 R14: ffffffff87e261a0 R15: ffff888002b00000
[ 902.923446][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 902.923646][ C3] uart_write+0x224/0x450
[ 902.923794][ C3] process_output_block+0x13e/0x790
[ 902.923960][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 902.924168][ C3] n_tty_write+0x412/0x7a0
[ 902.924332][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 902.924488][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 902.924641][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 902.924802][ C3] ? iterate_tty_write+0x95/0x540
[ 902.924961][ C3] ? lock_acquire+0x32/0xc0
[ 902.925123][ C3] ? iterate_tty_write+0x95/0x540
[ 902.925286][ C3] iterate_tty_write+0x228/0x540
[ 902.925446][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 902.925606][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 902.925770][ C3] vfs_write+0x9e5/0x10a0
[ 902.925897][ C3] ? __pfx___lock_release+0x10/0x10
[ 902.926051][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 902.926214][ C3] ? lock_acquire+0x32/0xc0
[ 902.926371][ C3] ? __pfx_vfs_write+0x10/0x10
[ 902.926534][ C3] ? __might_fault+0x11b/0x170
[ 902.926695][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 902.926891][ C3] ? __fget_light+0x53/0x1e0
[ 902.927054][ C3] ksys_write+0xf5/0x1e0
[ 902.927175][ C3] ? __pfx_ksys_write+0x10/0x10
[ 902.927335][ C3] do_syscall_64+0xc6/0x1e0
[ 902.927492][ C3] entry_SYSCALL_64_after_hwframe+0x72/0x7a
[ 902.927684][ C3] RIP: 0033:0x7f4d0658a957
[ 902.927851][ 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
[ 902.928395][ C3] RSP: 002b:00007ffc1a272a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 902.928636][ C3] RAX: ffffffffffffffda RBX: 0000563b651ff1b0 RCX: 00007f4d0658a957
[ 902.928878][ C3] RDX: 0000000000000001 RSI: 0000563b651ff1b0 RDI: 0000000000000001
[ 902.929134][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 902.929366][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000563b651eb590
[ 902.929613][ C3] R13: 0000563b651cc2a0 R14: 0000000000000001 R15: 0000563b651eb590
[ 902.929854][ C3]
[ 902.929969][ C3] handlers:
[ 902.930085][ C3] [] serial8250_interrupt
[ 902.930400][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr