[ 727.989033][ T6335] tc (6335) used greatest stack depth: 23440 bytes left
[ 742.553841][ C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 742.554158][ C0] CPU: 0 UID: 0 PID: 5848 Comm: perl Not tainted 6.19.0-rc8-virtme #1 PREEMPT(full)
[ 742.554162][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 742.554163][ C0] Call Trace:
[ 742.554165][ C0]
[ 742.554166][ C0] dump_stack_lvl+0x6f/0xa0
[ 742.554175][ C0] __report_bad_irq+0x66/0x161
[ 742.554180][ C0] note_interrupt.cold+0x21/0xe7
[ 742.554182][ C0] ? serial8250_get_port+0x50/0x50
[ 742.554186][ C0] ? poll_spurious_irqs+0x140/0x140
[ 742.554192][ C0] handle_irq_event+0x166/0x1c0
[ 742.554195][ C0] handle_edge_irq+0x2ec/0x880
[ 742.554199][ C0] __common_interrupt+0xae/0x270
[ 742.554203][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x3d0
[ 742.554206][ C0] common_interrupt+0xb0/0xf0
[ 742.554210][ C0]
[ 742.554211][ C0]
[ 742.554212][ C0] asm_common_interrupt+0x26/0x40
[ 742.554215][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80
[ 742.554218][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 b1 83 de fd 48 89 df e8 19 d5 de fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 f0 11 d2 fd 65 8b 05 29 44 05 02 85 c0 74 12 5b
[ 742.554219][ C0] RSP: 0018:ffa000000380fa70 EFLAGS: 00000246
[ 742.554222][ C0] RAX: 0000000000000082 RBX: ffffffff99593520 RCX: ffffffff964fdc13
[ 742.554223][ C0] RDX: ff1100001177a2c0 RSI: ffffffff96db6b31 RDI: ffffffff9686b380
[ 742.554224][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
[ 742.554225][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff99593628
[ 742.554226][ C0] R13: 0000000000000001 R14: ffffffff99593660 R15: ff110000019c4c00
[ 742.554229][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80
[ 742.554233][ C0] uart_write+0x21d/0x940
[ 742.554238][ C0] process_output_block+0x117/0x6e0
[ 742.554243][ C0] n_tty_write+0x3a8/0x8f0
[ 742.554245][ C0] ? _copy_from_iter+0x1b6/0x1580
[ 742.554250][ C0] ? n_tty_receive_signal_char+0x110/0x110
[ 742.554253][ C0] ? _mutex_trylock_nest_lock+0x21a/0x340
[ 742.554261][ C0] ? __init_waitqueue_head+0x160/0x160
[ 742.554265][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 742.554267][ C0] ? tty_ldisc_ref_wait+0x28/0x80
[ 742.554272][ C0] iterate_tty_write+0x27d/0x550
[ 742.554275][ C0] ? tty_ldisc_ref_wait+0x28/0x80
[ 742.554278][ C0] file_tty_write.isra.0+0x1a2/0x240
[ 742.554280][ C0] ? redirected_tty_write+0xd0/0xd0
[ 742.554282][ C0] new_sync_write+0x308/0x6f0
[ 742.554286][ C0] ? new_sync_read+0x3bb/0x6f0
[ 742.554289][ C0] ? new_sync_read+0x6f0/0x6f0
[ 742.554291][ C0] ? generic_atomic_write_valid+0x150/0x150
[ 742.554299][ C0] vfs_write+0x65e/0xbb0
[ 742.554301][ C0] ? vfs_read+0x3cc/0x790
[ 742.554304][ C0] ksys_write+0xff/0x200
[ 742.554308][ C0] ? __ia32_sys_read+0xc0/0xc0
[ 742.554311][ C0] ? rcu_is_watching+0x15/0xd0
[ 742.554315][ C0] do_syscall_64+0xbd/0xfc0
[ 742.554318][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 742.554319][ C0] RIP: 0033:0x7fd42f618c5e
[ 742.554322][ C0] Code: 4d 89 d8 e8 34 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 742.554323][ C0] RSP: 002b:00007ffc1a233ee0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 742.554325][ C0] RAX: ffffffffffffffda RBX: 0000564e89090320 RCX: 00007fd42f618c5e
[ 742.554326][ C0] RDX: 0000000000000001 RSI: 0000564e89090320 RDI: 0000000000000001
[ 742.554326][ C0] RBP: 00007ffc1a233ef0 R08: 0000000000000000 R09: 0000000000000000
[ 742.554327][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[ 742.554328][ C0] R13: 0000564e89051010 R14: 0000000000000001 R15: 0000564e89090320
[ 742.554334][ C0]
[ 742.554334][ C0] handlers:
[ 742.563206][ C0] [] serial8250_interrupt
[ 742.563489][ C0] Disabling IRQ #51