[ 939.338249][ T4416] Mirror/redirect action on
[ 980.875804][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 980.876203][ C3] CPU: 3 PID: 4271 Comm: perl Not tainted 6.8.0-rc7-virtme #1
[ 980.876457][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 980.876826][ C3] Call Trace:
[ 980.876960][ C3]
[ 980.877051][ C3] dump_stack_lvl+0x64/0xb0
[ 980.877232][ C3] __report_bad_irq+0x5f/0x180
[ 980.877405][ C3] note_interrupt+0x6b3/0x860
[ 980.877578][ C3] handle_irq_event+0x16d/0x1c0
[ 980.877747][ C3] handle_edge_irq+0x1fa/0xb60
[ 980.877923][ C3] __common_interrupt+0x7c/0x180
[ 980.878093][ C3] common_interrupt+0x7e/0x90
[ 980.878260][ C3]
[ 980.878348][ C3]
[ 980.878433][ C3] asm_common_interrupt+0x26/0x40
[ 980.878601][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 980.878827][ C3] Code: 10 e8 c1 61 a3 fd 48 89 ef e8 e9 cd a3 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 35 f3 18 72 <74> 0e 5b 5d c3 cc cc cc cc e8 8f 8a c5 fd eb dc 0f 1f 44 00 00 5b
[ 980.879409][ C3] RSP: 0018:ffffc9000486fa88 EFLAGS: 00000286
[ 980.879625][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff22198d1
[ 980.879858][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8deabfa1
[ 980.880094][ C3] RBP: ffffffff919aabe0 R08: 0000000000000001 R09: fffffbfff2214a78
[ 980.880325][ C3] R10: ffffffff910a53c7 R11: 0000000000000000 R12: 0000000000000329
[ 980.880561][ C3] R13: ffffffff919aace8 R14: ffffffff919aabe0 R15: ffff888004910000
[ 980.880799][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 980.881005][ C3] uart_write+0x220/0x440
[ 980.881128][ C3] process_output_block+0x13e/0x790
[ 980.881282][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 980.881476][ C3] n_tty_write+0x414/0x7a0
[ 980.881655][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 980.881811][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 980.881966][ C3] ? lock_acquire+0x1c1/0x220
[ 980.882117][ C3] ? iterate_tty_write+0x95/0x540
[ 980.882279][ C3] iterate_tty_write+0x229/0x540
[ 980.882436][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 980.882593][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 980.882751][ C3] vfs_write+0x9e9/0x10a0
[ 980.882875][ C3] ? lock_acquire+0x1c1/0x220
[ 980.883038][ C3] ? __pfx_vfs_write+0x10/0x10
[ 980.883194][ C3] ? __might_fault+0xc6/0x180
[ 980.883360][ C3] ? kvm_clock_get_cycles+0x18/0x30
[ 980.883516][ C3] ? __fget_light+0x54/0x1e0
[ 980.883688][ C3] ksys_write+0xf5/0x1e0
[ 980.883807][ C3] ? __pfx_ksys_write+0x10/0x10
[ 980.883982][ C3] do_syscall_64+0xc9/0x1e0
[ 980.884141][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 980.884334][ C3] RIP: 0033:0x7f34d1456957
[ 980.884490][ 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
[ 980.885051][ C3] RSP: 002b:00007ffcc089be18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 980.885296][ C3] RAX: ffffffffffffffda RBX: 0000558d156521b0 RCX: 00007f34d1456957
[ 980.885524][ C3] RDX: 0000000000000001 RSI: 0000558d156521b0 RDI: 0000000000000001
[ 980.885766][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 980.885998][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558d1563e590
[ 980.886231][ C3] R13: 0000558d1561f2a0 R14: 0000000000000001 R15: 0000558d1563e590
[ 980.886477][ C3]
[ 980.886593][ C3] handlers:
[ 980.886712][ C3] [] serial8250_interrupt
[ 980.887026][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr