[ 1428.292861][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1428.293215][ C3] CPU: 3 PID: 11523 Comm: perl Not tainted 6.9.0-rc2-virtme #1
[ 1428.293482][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1428.293859][ C3] Call Trace:
[ 1428.293988][ C3]
[ 1428.294080][ C3] dump_stack_lvl+0x82/0xd0
[ 1428.294272][ C3] __report_bad_irq+0x5f/0x180
[ 1428.294447][ C3] note_interrupt+0x6b3/0x860
[ 1428.294621][ C3] handle_irq_event+0x16d/0x1c0
[ 1428.294795][ C3] handle_edge_irq+0x1fa/0xb60
[ 1428.294971][ C3] __common_interrupt+0x7c/0x180
[ 1428.295142][ C3] common_interrupt+0x7e/0x90
[ 1428.295312][ C3]
[ 1428.295416][ C3]
[ 1428.295505][ C3] asm_common_interrupt+0x26/0x40
[ 1428.295683][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1428.295900][ C3] Code: 10 e8 01 18 9b fd 48 89 ef e8 39 88 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 d5 8e 6f 7b <74> 0e 5b 5d c3 cc cc cc cc e8 ff 83 be fd eb dc 0f 1f 44 00 00 5b
[ 1428.296490][ C3] RSP: 0018:ffffc9000549fa80 EFLAGS: 00000286
[ 1428.296712][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff0f686f0
[ 1428.296977][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84943941
[ 1428.297228][ C3] RBP: ffffffff884241a0 R08: 0000000000000001 R09: fffffbfff0f638b0
[ 1428.297493][ C3] R10: ffffffff87b1c587 R11: 0000000000000000 R12: 0000000000000f1f
[ 1428.297757][ C3] R13: ffffffff884242a8 R14: ffffffff884241a0 R15: ffff888004b00000
[ 1428.298020][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1428.298239][ C3] uart_write+0x224/0x450
[ 1428.298380][ C3] process_output_block+0x13e/0x790
[ 1428.298550][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 1428.298766][ C3] n_tty_write+0x412/0x7a0
[ 1428.298937][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1428.299113][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 1428.299285][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1428.299455][ C3] ? iterate_tty_write+0x95/0x540
[ 1428.299621][ C3] ? lock_acquire+0x32/0xc0
[ 1428.299795][ C3] ? iterate_tty_write+0x95/0x540
[ 1428.299971][ C3] iterate_tty_write+0x228/0x540
[ 1428.300142][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1428.300314][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 1428.300488][ C3] vfs_write+0x9e5/0x10a0
[ 1428.300636][ C3] ? __pfx___lock_release+0x10/0x10
[ 1428.300814][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1428.300992][ C3] ? __fget_light+0x53/0x1e0
[ 1428.301165][ C3] ksys_write+0xf5/0x1e0
[ 1428.301303][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1428.301486][ C3] do_syscall_64+0xc6/0x1e0
[ 1428.301659][ C3] entry_SYSCALL_64_after_hwframe+0x72/0x7a
[ 1428.301866][ C3] RIP: 0033:0x7fda57d54957
[ 1428.302045][ 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
[ 1428.302623][ C3] RSP: 002b:00007ffeed667e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1428.302890][ C3] RAX: ffffffffffffffda RBX: 0000564fa8942070 RCX: 00007fda57d54957
[ 1428.303134][ C3] RDX: 0000000000000001 RSI: 0000564fa8942070 RDI: 0000000000000001
[ 1428.303379][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1428.303632][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000564fa892e590
[ 1428.303893][ C3] R13: 0000564fa890f2a0 R14: 0000000000000001 R15: 0000564fa892e590
[ 1428.304159][ C3]
[ 1428.304293][ C3] handlers:
[ 1428.304423][ C3] [] serial8250_interrupt
[ 1428.304810][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr