[ 848.210172][ T4420] Mirror/redirect action on
[ 919.652728][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 919.653144][ C3] CPU: 3 PID: 4275 Comm: perl Not tainted 6.8.0-virtme #1
[ 919.653375][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 919.653767][ C3] Call Trace:
[ 919.653921][ C3]
[ 919.654022][ C3] dump_stack_lvl+0x64/0xb0
[ 919.654209][ C3] __report_bad_irq+0x5f/0x180
[ 919.654385][ C3] note_interrupt+0x6b3/0x860
[ 919.654566][ C3] handle_irq_event+0x16d/0x1c0
[ 919.654750][ C3] handle_edge_irq+0x1fa/0xb60
[ 919.654933][ C3] __common_interrupt+0x7c/0x180
[ 919.655111][ C3] common_interrupt+0x7e/0x90
[ 919.655283][ C3]
[ 919.655379][ C3]
[ 919.655470][ C3] asm_common_interrupt+0x26/0x40
[ 919.655643][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 919.655870][ C3] Code: 10 e8 31 9f a0 fd 48 89 ef e8 59 0b a1 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 15 8a f5 59 <74> 0e 5b 5d c3 cc cc cc cc e8 af cc c3 fd eb dc 0f 1f 44 00 00 5b
[ 919.656468][ C3] RSP: 0018:ffffc9000139fa80 EFLAGS: 00000286
[ 919.656689][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff525cb3b
[ 919.656961][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa60e3a81
[ 919.657220][ C3] RBP: ffffffffa9bc3f60 R08: 0000000000000001 R09: fffffbfff5257cb0
[ 919.657479][ C3] R10: ffffffffa92be587 R11: 0000000000000000 R12: 00000000000009be
[ 919.657738][ C3] R13: ffffffffa9bc4068 R14: ffffffffa9bc3f60 R15: ffff8880045d0000
[ 919.658010][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 919.658229][ C3] uart_write+0x224/0x450
[ 919.658372][ C3] process_output_block+0x13e/0x790
[ 919.658543][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 919.658757][ C3] n_tty_write+0x412/0x7a0
[ 919.658933][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 919.659106][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 919.659278][ C3] ? lock_acquire+0x1c1/0x220
[ 919.659449][ C3] ? iterate_tty_write+0x95/0x540
[ 919.659631][ C3] iterate_tty_write+0x228/0x540
[ 919.659812][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 919.659990][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 919.660167][ C3] vfs_write+0x9e5/0x10a0
[ 919.660297][ C3] ? lock_acquire+0x1c1/0x220
[ 919.660471][ C3] ? __pfx_vfs_write+0x10/0x10
[ 919.660642][ C3] ? __might_fault+0xc3/0x170
[ 919.660822][ C3] ? __fget_light+0x53/0x1e0
[ 919.660996][ C3] ksys_write+0xf5/0x1e0
[ 919.661125][ C3] ? __pfx_ksys_write+0x10/0x10
[ 919.661306][ C3] do_syscall_64+0xc6/0x1e0
[ 919.661477][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 919.661685][ C3] RIP: 0033:0x7f8195970957
[ 919.661866][ 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
[ 919.662453][ C3] RSP: 002b:00007ffd4f273358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 919.662720][ C3] RAX: ffffffffffffffda RBX: 000055c522f5d1b0 RCX: 00007f8195970957
[ 919.662973][ C3] RDX: 0000000000000001 RSI: 000055c522f5d1b0 RDI: 0000000000000001
[ 919.663221][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 919.663477][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055c522f49590
[ 919.663730][ C3] R13: 000055c522f2a2a0 R14: 0000000000000001 R15: 000055c522f49590
[ 919.664002][ C3]
[ 919.664138][ C3] handlers:
[ 919.664277][ C3] [] serial8250_interrupt
[ 919.664642][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr