[ 839.043940][ T9884] Mirror/redirect action on
[ 879.341689][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 879.342099][ C3] CPU: 3 PID: 9727 Comm: perl Not tainted 6.9.0-rc3-virtme #1
[ 879.342372][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 879.342739][ C3] Call Trace:
[ 879.342871][ C3]
[ 879.342963][ C3] dump_stack_lvl+0x82/0xd0
[ 879.343141][ C3] __report_bad_irq+0x5f/0x180
[ 879.343311][ C3] note_interrupt+0x6b3/0x860
[ 879.343472][ C3] handle_irq_event+0x16d/0x1c0
[ 879.343633][ C3] handle_edge_irq+0x1fa/0xb60
[ 879.343794][ C3] __common_interrupt+0x7c/0x180
[ 879.343952][ C3] common_interrupt+0x7e/0x90
[ 879.344108][ C3]
[ 879.344193][ C3]
[ 879.344274][ C3] asm_common_interrupt+0x26/0x40
[ 879.344436][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 879.344657][ C3] Code: 10 e8 81 88 9a fd 48 89 ef e8 b9 f8 9a 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 a5 cd 4e 77 <74> 0e 5b 5d c3 cc cc cc cc e8 7f f5 bd fd eb dc 0f 1f 44 00 00 5b
[ 879.345214][ C3] RSP: 0018:ffffc90004effa80 EFLAGS: 00000286
[ 879.345422][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff17a9509
[ 879.345659][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88b4fa71
[ 879.345893][ C3] RBP: ffffffff8c62b1a0 R08: 0000000000000001 R09: fffffbfff17a46b0
[ 879.346128][ C3] R10: ffffffff8bd23587 R11: 0000000000000000 R12: 00000000000007d6
[ 879.346365][ C3] R13: ffffffff8c62b2a8 R14: ffffffff8c62b1a0 R15: ffff8880041c0000
[ 879.346619][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 879.346825][ C3] uart_write+0x224/0x450
[ 879.346957][ C3] process_output_block+0x13e/0x790
[ 879.347122][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 879.347333][ C3] n_tty_write+0x412/0x7a0
[ 879.347492][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 879.347658][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 879.347826][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 879.347985][ C3] ? iterate_tty_write+0x95/0x540
[ 879.348149][ C3] ? lock_acquire+0x32/0xc0
[ 879.348302][ C3] ? iterate_tty_write+0x95/0x540
[ 879.348467][ C3] iterate_tty_write+0x228/0x540
[ 879.348628][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 879.348789][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 879.348957][ C3] vfs_write+0x9e5/0x10a0
[ 879.349090][ C3] ? __pfx___lock_release+0x10/0x10
[ 879.349260][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 879.349431][ C3] ? lock_acquire+0x32/0xc0
[ 879.349609][ C3] ? __pfx_vfs_write+0x10/0x10
[ 879.349791][ C3] ? __might_fault+0x11b/0x170
[ 879.349964][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 879.350177][ C3] ? __fget_light+0x53/0x1e0
[ 879.350352][ C3] ksys_write+0xf5/0x1e0
[ 879.350484][ C3] ? __pfx_ksys_write+0x10/0x10
[ 879.350659][ C3] do_syscall_64+0xc3/0x1d0
[ 879.350840][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 879.351057][ C3] RIP: 0033:0x7f054b3c7957
[ 879.351236][ 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
[ 879.351824][ C3] RSP: 002b:00007ffc1c799de8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 879.352076][ C3] RAX: ffffffffffffffda RBX: 000055d02fe45070 RCX: 00007f054b3c7957
[ 879.352320][ C3] RDX: 0000000000000001 RSI: 000055d02fe45070 RDI: 0000000000000001
[ 879.352578][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 879.352830][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055d02fe31590
[ 879.353084][ C3] R13: 000055d02fe122a0 R14: 0000000000000001 R15: 000055d02fe31590
[ 879.353341][ C3]
[ 879.353470][ C3] handlers:
[ 879.353598][ C3] [] serial8250_interrupt
[ 879.354356][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr