[ 917.238273][ T3487] Mirror/redirect action on
[ 957.975046][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 957.975464][ C3] CPU: 3 PID: 3340 Comm: perl Not tainted 6.9.0-virtme #1
[ 957.975683][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 957.976065][ C3] Call Trace:
[ 957.976202][ C3]
[ 957.976293][ C3] dump_stack_lvl+0x82/0xd0
[ 957.976480][ C3] __report_bad_irq+0x5f/0x180
[ 957.976655][ C3] note_interrupt+0x6b3/0x860
[ 957.976830][ C3] handle_irq_event+0x16d/0x1c0
[ 957.977003][ C3] handle_edge_irq+0x1fa/0xb60
[ 957.977178][ C3] __common_interrupt+0x82/0x170
[ 957.977354][ C3] common_interrupt+0x7e/0x90
[ 957.977536][ C3]
[ 957.977627][ C3]
[ 957.977718][ C3] asm_common_interrupt+0x26/0x40
[ 957.977903][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 957.978122][ C3] Code: 10 e8 e1 d5 93 fd 48 89 ef e8 59 46 94 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 f5 2c c8 7a <74> 0e 5b 5d c3 cc cc cc cc e8 cf b9 b7 fd eb dc 0f 1f 44 00 00 5b
[ 957.978709][ C3] RSP: 0018:ffffc90004e7fa88 EFLAGS: 00000286
[ 957.978931][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff10ae765
[ 957.979182][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff853b9b21
[ 957.979450][ C3] RBP: ffffffff88e54580 R08: 0000000000000001 R09: fffffbfff10a98a8
[ 957.979700][ C3] R10: ffffffff8854c547 R11: 0000000000000000 R12: 00000000000000a1
[ 957.979959][ C3] R13: ffffffff88e54688 R14: ffffffff88e54580 R15: ffff888004bf0000
[ 957.980220][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 957.980441][ C3] uart_write+0x224/0x450
[ 957.980584][ C3] process_output_block+0x13e/0x790
[ 957.980761][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 957.980984][ C3] n_tty_write+0x412/0x7a0
[ 957.981164][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 957.981339][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 957.981516][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 957.981692][ C3] ? iterate_tty_write+0x95/0x540
[ 957.981863][ C3] ? lock_acquire+0x32/0xc0
[ 957.982069][ C3] ? iterate_tty_write+0x95/0x540
[ 957.982249][ C3] iterate_tty_write+0x228/0x540
[ 957.982421][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 957.982594][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 957.982771][ C3] vfs_write+0x9dc/0x1070
[ 957.982906][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 957.983081][ C3] ? __pfx_vfs_write+0x10/0x10
[ 957.983256][ C3] ? clockevents_program_event+0xf6/0x300
[ 957.983451][ C3] ? __fget_light+0x53/0x1e0
[ 957.983643][ C3] ? clockevents_program_event+0x1ea/0x300
[ 957.983887][ C3] ksys_write+0xf5/0x1e0
[ 957.984032][ C3] ? __pfx_ksys_write+0x10/0x10
[ 957.984224][ C3] do_syscall_64+0xc3/0x1d0
[ 957.984416][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 957.984650][ C3] RIP: 0033:0x7f63f4779957
[ 957.984839][ 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
[ 957.985502][ C3] RSP: 002b:00007ffed79c6e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 957.985787][ C3] RAX: ffffffffffffffda RBX: 0000557674f63320 RCX: 00007f63f4779957
[ 957.986069][ C3] RDX: 0000000000000001 RSI: 0000557674f63320 RDI: 0000000000000001
[ 957.986339][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 957.986611][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000557674f4f5c0
[ 957.986896][ C3] R13: 0000557674f302a0 R14: 0000000000000001 R15: 0000557674f4f5c0
[ 957.987181][ C3]
[ 957.987321][ C3] handlers:
[ 957.987462][ C3] [] serial8250_interrupt
[ 957.988183][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr