[ 949.387394][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 949.387774][ C3] CPU: 3 PID: 9434 Comm: perl Not tainted 6.9.0-rc2-virtme #1
[ 949.388031][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 949.388408][ C3] Call Trace:
[ 949.388539][ C3]
[ 949.388637][ C3] dump_stack_lvl+0x82/0xd0
[ 949.388824][ C3] __report_bad_irq+0x5f/0x180
[ 949.389006][ C3] note_interrupt+0x6b3/0x860
[ 949.389180][ C3] handle_irq_event+0x16d/0x1c0
[ 949.389352][ C3] handle_edge_irq+0x1fa/0xb60
[ 949.389526][ C3] __common_interrupt+0x7c/0x180
[ 949.389699][ C3] common_interrupt+0x7e/0x90
[ 949.389872][ C3]
[ 949.389961][ C3]
[ 949.390051][ C3] asm_common_interrupt+0x26/0x40
[ 949.390222][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 949.390449][ C3] Code: 10 e8 b1 27 9b fd 48 89 ef e8 e9 97 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 85 9e cf 65 <74> 0e 5b 5d c3 cc cc cc cc e8 af 93 be fd eb dc 0f 1f 44 00 00 5b
[ 949.391059][ C3] RSP: 0018:ffffc9000131fa80 EFLAGS: 00000286
[ 949.391280][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff3aa8722
[ 949.391539][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9a342991
[ 949.391805][ C3] RBP: ffffffff9de241a0 R08: 0000000000000001 R09: fffffbfff3aa38b0
[ 949.392065][ C3] R10: ffffffff9d51c587 R11: 0000000000000000 R12: 0000000000000453
[ 949.392341][ C3] R13: ffffffff9de242a8 R14: ffffffff9de241a0 R15: ffff888003fc0000
[ 949.392605][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 949.392831][ C3] uart_write+0x224/0x450
[ 949.392973][ C3] process_output_block+0x13e/0x790
[ 949.393154][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 949.393372][ C3] n_tty_write+0x412/0x7a0
[ 949.393552][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 949.393725][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 949.393894][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 949.394063][ C3] ? iterate_tty_write+0x95/0x540
[ 949.394247][ C3] ? lock_acquire+0x32/0xc0
[ 949.394418][ C3] ? iterate_tty_write+0x95/0x540
[ 949.394593][ C3] iterate_tty_write+0x228/0x540
[ 949.394765][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 949.394939][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 949.395117][ C3] vfs_write+0x9e5/0x10a0
[ 949.395254][ C3] ? __pfx___lock_release+0x10/0x10
[ 949.395424][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 949.395594][ C3] ? lock_acquire+0x32/0xc0
[ 949.395763][ C3] ? __pfx_vfs_write+0x10/0x10
[ 949.395940][ C3] ? __might_fault+0x11b/0x170
[ 949.396116][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 949.396325][ C3] ? __fget_light+0x53/0x1e0
[ 949.396498][ C3] ksys_write+0xf5/0x1e0
[ 949.396633][ C3] ? __pfx_ksys_write+0x10/0x10
[ 949.396810][ C3] do_syscall_64+0xc6/0x1e0
[ 949.396981][ C3] entry_SYSCALL_64_after_hwframe+0x72/0x7a
[ 949.397188][ C3] RIP: 0033:0x7fd2b1a95957
[ 949.397367][ 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
[ 949.397954][ C3] RSP: 002b:00007ffe11ee5628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 949.398213][ C3] RAX: ffffffffffffffda RBX: 00005592c9c2e070 RCX: 00007fd2b1a95957
[ 949.398468][ C3] RDX: 0000000000000001 RSI: 00005592c9c2e070 RDI: 0000000000000001
[ 949.398722][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 949.398971][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005592c9c1a590
[ 949.399219][ C3] R13: 00005592c9bfb2a0 R14: 0000000000000001 R15: 00005592c9c1a590
[ 949.399490][ C3]
[ 949.399624][ C3] handlers:
[ 949.399755][ C3] [] serial8250_interrupt
[ 949.400128][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr