[ 1243.717198][ T5192] ncat (5192) used greatest stack depth: 23376 bytes left
[ 1265.711937][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1265.712320][ C3] CPU: 3 UID: 0 PID: 4903 Comm: perl Not tainted 6.11.0-virtme #1
[ 1265.712578][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1265.712959][ C3] Call Trace:
[ 1265.713096][ C3]
[ 1265.713189][ C3] dump_stack_lvl+0x82/0xd0
[ 1265.713377][ C3] __report_bad_irq+0x5f/0x180
[ 1265.713556][ C3] note_interrupt+0x6b3/0x860
[ 1265.713733][ C3] handle_irq_event+0x16d/0x1c0
[ 1265.713907][ C3] handle_edge_irq+0x1fa/0xb60
[ 1265.714085][ C3] __common_interrupt+0x82/0x170
[ 1265.714265][ C3] common_interrupt+0x81/0xa0
[ 1265.714440][ C3]
[ 1265.714530][ C3]
[ 1265.714619][ C3] asm_common_interrupt+0x26/0x40
[ 1265.714798][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1265.715017][ C3] Code: 10 e8 01 e9 87 fd 48 89 ef e8 b9 59 88 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 cb 7b 5e <74> 0e 5b 5d c3 cc cc cc cc e8 7f 3e ad fd eb dc 0f 1f 44 00 00 5b
[ 1265.715631][ C3] RSP: 0018:ffffc90000f3faa0 EFLAGS: 00000286
[ 1265.715847][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff497e10a
[ 1265.716099][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa187fe01
[ 1265.716363][ C3] RBP: ffffffffa54b43e0 R08: 0000000000000001 R09: fffffbfff49791d0
[ 1265.716880][ C3] R10: ffffffffa4bc8e87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1265.717138][ C3] R13: 0000000000000001 R14: ffffffffa54b44e8 R15: 00000000ffffffff
[ 1265.717399][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1265.717618][ C3] uart_write+0x220/0x920
[ 1265.717758][ C3] process_output_block+0x13e/0x790
[ 1265.717934][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1265.718149][ C3] n_tty_write+0x40c/0x790
[ 1265.718324][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1265.718496][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1265.718668][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1265.718841][ C3] ? iterate_tty_write+0x8f/0x540
[ 1265.719009][ C3] ? lock_acquire+0x32/0xc0
[ 1265.719176][ C3] ? iterate_tty_write+0x8f/0x540
[ 1265.719350][ C3] iterate_tty_write+0x222/0x540
[ 1265.719526][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1265.719700][ C3] file_tty_write.constprop.0+0x1cf/0x360
[ 1265.719870][ C3] vfs_write+0xa77/0x11d0
[ 1265.720004][ C3] ? __pfx___lock_release+0x10/0x10
[ 1265.720172][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1265.720359][ C3] ? __might_fault+0xc3/0x170
[ 1265.720534][ C3] ? lock_acquire+0x32/0xc0
[ 1265.720719][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1265.720894][ C3] ? __might_fault+0x11b/0x170
[ 1265.721068][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 1265.721283][ C3] ksys_write+0xf5/0x1e0
[ 1265.721411][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1265.721584][ C3] do_syscall_64+0xc1/0x1d0
[ 1265.721759][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1265.721974][ C3] RIP: 0033:0x7fb554873957
[ 1265.722159][ 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
[ 1265.722763][ C3] RSP: 002b:00007ffe28d4c268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1265.723031][ C3] RAX: ffffffffffffffda RBX: 000055bded9503f0 RCX: 00007fb554873957
[ 1265.723286][ C3] RDX: 0000000000000001 RSI: 000055bded9503f0 RDI: 0000000000000001
[ 1265.723533][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1265.723782][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055bded93b5e0
[ 1265.724034][ C3] R13: 000055bded91c2a0 R14: 0000000000000001 R15: 000055bded93b5e0
[ 1265.724296][ C3]
[ 1265.724423][ C3] handlers:
[ 1265.724554][ C3] [] serial8250_interrupt
[ 1265.725075][ C3] Disabling IRQ #4