[ 848.535822][ T4469] Mirror/redirect action on
[ 876.751693][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 876.752066][ C3] CPU: 3 PID: 4312 Comm: perl Not tainted 6.9.0-rc4-virtme #1
[ 876.752302][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 876.752675][ C3] Call Trace:
[ 876.752795][ C3]
[ 876.752883][ C3] dump_stack_lvl+0x82/0xd0
[ 876.753056][ C3] __report_bad_irq+0x5f/0x180
[ 876.753224][ C3] note_interrupt+0x6b3/0x860
[ 876.753394][ C3] handle_irq_event+0x16d/0x1c0
[ 876.753554][ C3] handle_edge_irq+0x1fa/0xb60
[ 876.753722][ C3] __common_interrupt+0x7c/0x180
[ 876.753897][ C3] common_interrupt+0x7e/0x90
[ 876.754067][ C3]
[ 876.754155][ C3]
[ 876.754236][ C3] asm_common_interrupt+0x26/0x40
[ 876.754407][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 876.754622][ C3] Code: 10 e8 e1 a8 9a fd 48 89 ef e8 19 19 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 05 ee 8e 6b <74> 0e 5b 5d c3 cc cc cc cc e8 1f 15 be fd eb dc 0f 1f 44 00 00 5b
[ 876.755194][ C3] RSP: 0018:ffffc900010dfa80 EFLAGS: 00000286
[ 876.755398][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2f29109
[ 876.755627][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9474da11
[ 876.755860][ C3] RBP: ffffffff982291e0 R08: 0000000000000001 R09: fffffbfff2f242b0
[ 876.756103][ C3] R10: ffffffff97921587 R11: 0000000000000000 R12: 0000000000000588
[ 876.756339][ C3] R13: ffffffff982292e8 R14: ffffffff982291e0 R15: ffff888004a20000
[ 876.756582][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 876.756792][ C3] uart_write+0x224/0x450
[ 876.756923][ C3] process_output_block+0x13e/0x790
[ 876.757084][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 876.757293][ C3] n_tty_write+0x412/0x7a0
[ 876.757455][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 876.757613][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 876.757780][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 876.757944][ C3] ? iterate_tty_write+0x95/0x540
[ 876.758098][ C3] ? lock_acquire+0x32/0xc0
[ 876.758257][ C3] ? iterate_tty_write+0x95/0x540
[ 876.758415][ C3] iterate_tty_write+0x228/0x540
[ 876.758588][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 876.758756][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 876.758915][ C3] vfs_write+0x9e5/0x10a0
[ 876.759034][ C3] ? __pfx___lock_release+0x10/0x10
[ 876.759189][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 876.759342][ C3] ? __pfx_vfs_write+0x10/0x10
[ 876.759505][ C3] ? clockevents_program_event+0xf6/0x300
[ 876.759667][ C3] ? __fget_light+0x53/0x1e0
[ 876.759835][ C3] ksys_write+0xf5/0x1e0
[ 876.759960][ C3] ? __pfx_ksys_write+0x10/0x10
[ 876.760132][ C3] do_syscall_64+0xc3/0x1d0
[ 876.760294][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 876.760487][ C3] RIP: 0033:0x7f5868926957
[ 876.760653][ 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
[ 876.761215][ C3] RSP: 002b:00007ffc077fff38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 876.761462][ C3] RAX: ffffffffffffffda RBX: 000055ff06edd310 RCX: 00007f5868926957
[ 876.761688][ C3] RDX: 0000000000000001 RSI: 000055ff06edd310 RDI: 0000000000000001
[ 876.761926][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 876.762160][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055ff06ec95c0
[ 876.762395][ C3] R13: 000055ff06eaa2a0 R14: 0000000000000001 R15: 000055ff06ec95c0
[ 876.762637][ C3]
[ 876.762758][ C3] handlers:
[ 876.762892][ C3] [] serial8250_interrupt
[ 876.763239][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr