[ 780.541333][ T3630] Mirror/redirect action on
[ 831.532097][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 831.532502][ C3] CPU: 3 PID: 3480 Comm: perl Not tainted 6.8.0-virtme #1
[ 831.532710][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 831.533084][ C3] Call Trace:
[ 831.533205][ C3]
[ 831.533290][ C3] dump_stack_lvl+0x82/0xd0
[ 831.533468][ C3] __report_bad_irq+0x5f/0x180
[ 831.533631][ C3] note_interrupt+0x6b3/0x860
[ 831.533794][ C3] handle_irq_event+0x16d/0x1c0
[ 831.533951][ C3] handle_edge_irq+0x1fa/0xb60
[ 831.534113][ C3] __common_interrupt+0x7c/0x180
[ 831.534272][ C3] common_interrupt+0x7e/0x90
[ 831.534436][ C3]
[ 831.534525][ C3]
[ 831.534607][ C3] asm_common_interrupt+0x26/0x40
[ 831.534765][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 831.534968][ C3] Code: 10 e8 91 d9 9b fd 48 89 ef e8 c9 49 9c 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 4b f0 62 <74> 0e 5b 5d c3 cc cc cc cc e8 ef 42 bf fd eb dc 0f 1f 44 00 00 5b
[ 831.535518][ C3] RSP: 0018:ffffc9000289fa80 EFLAGS: 00000286
[ 831.535737][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff4067d09
[ 831.535975][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9d1378a1
[ 831.536216][ C3] RBP: ffffffffa0c1f1a0 R08: 0000000000000001 R09: fffffbfff4062eb0
[ 831.536529][ C3] R10: ffffffffa0317587 R11: 0000000000000000 R12: 0000000000000986
[ 831.536760][ C3] R13: ffffffffa0c1f2a8 R14: ffffffffa0c1f1a0 R15: ffff888003a40000
[ 831.536995][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 831.537196][ C3] uart_write+0x224/0x450
[ 831.537323][ C3] process_output_block+0x13e/0x790
[ 831.537481][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 831.537685][ C3] n_tty_write+0x412/0x7a0
[ 831.537848][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 831.538001][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 831.538156][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 831.538339][ C3] ? iterate_tty_write+0x95/0x540
[ 831.538495][ C3] ? lock_acquire+0x32/0xc0
[ 831.538649][ C3] ? iterate_tty_write+0x95/0x540
[ 831.538818][ C3] iterate_tty_write+0x228/0x540
[ 831.538977][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 831.539136][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 831.539302][ C3] vfs_write+0x9e5/0x10a0
[ 831.539424][ C3] ? __pfx___lock_release+0x10/0x10
[ 831.539578][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 831.539732][ C3] ? lock_acquire+0x32/0xc0
[ 831.539893][ C3] ? __pfx_vfs_write+0x10/0x10
[ 831.540054][ C3] ? __might_fault+0x11b/0x170
[ 831.540216][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 831.540418][ C3] ? __fget_light+0x53/0x1e0
[ 831.540599][ C3] ksys_write+0xf5/0x1e0
[ 831.540720][ C3] ? __pfx_ksys_write+0x10/0x10
[ 831.540881][ C3] do_syscall_64+0xc6/0x1e0
[ 831.541040][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 831.541234][ C3] RIP: 0033:0x7f0567ba4957
[ 831.541397][ 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
[ 831.541929][ C3] RSP: 002b:00007fff81257ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 831.542165][ C3] RAX: ffffffffffffffda RBX: 000055875a85c1b0 RCX: 00007f0567ba4957
[ 831.542397][ C3] RDX: 0000000000000001 RSI: 000055875a85c1b0 RDI: 0000000000000001
[ 831.542624][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 831.542848][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055875a848590
[ 831.543087][ C3] R13: 000055875a8292a0 R14: 0000000000000001 R15: 000055875a848590
[ 831.543343][ C3]
[ 831.543460][ C3] handlers:
[ 831.543589][ C3] [] serial8250_interrupt
[ 831.543943][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr