[ 1408.264054][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1408.264401][ C3] CPU: 3 UID: 0 PID: 7370 Comm: perl Not tainted 6.12.0-rc4-virtme #1
[ 1408.264640][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1408.264994][ C3] Call Trace:
[ 1408.265121][ C3]
[ 1408.265205][ C3] dump_stack_lvl+0x82/0xd0
[ 1408.265381][ C3] __report_bad_irq+0x5f/0x180
[ 1408.265543][ C3] note_interrupt+0x6b3/0x860
[ 1408.265707][ C3] handle_irq_event+0x16d/0x1c0
[ 1408.265868][ C3] handle_edge_irq+0x1fa/0xb60
[ 1408.266039][ C3] __common_interrupt+0x82/0x170
[ 1408.266199][ C3] common_interrupt+0x81/0xa0
[ 1408.266364][ C3]
[ 1408.266448][ C3]
[ 1408.266538][ C3] asm_common_interrupt+0x26/0x40
[ 1408.266695][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1408.266904][ C3] Code: 10 e8 71 6b 87 fd 48 89 ef e8 89 dc 87 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 85 d5 1a 45 <74> 0e 5b 5d c3 cc cc cc cc e8 9f ae ac fd eb dc 0f 1f 44 00 00 5b
[ 1408.267454][ C3] RSP: 0018:ffffc9000111faa0 EFLAGS: 00000286
[ 1408.267658][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff7c3ead8
[ 1408.267899][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffbae8f351
[ 1408.268133][ C3] RBP: ffffffffbeab9420 R08: 0000000000000001 R09: fffffbfff7c39bd0
[ 1408.268371][ C3] R10: ffffffffbe1cde87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1408.268618][ C3] R13: 0000000000000001 R14: ffffffffbeab9528 R15: 00000000ffffffff
[ 1408.268863][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1408.269065][ C3] uart_write+0x220/0x920
[ 1408.269194][ C3] process_output_block+0x13e/0x790
[ 1408.269352][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1408.269547][ C3] n_tty_write+0x40c/0x790
[ 1408.269707][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1408.269867][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1408.270025][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1408.270182][ C3] ? iterate_tty_write+0x8f/0x540
[ 1408.270335][ C3] ? lock_acquire+0x32/0xc0
[ 1408.270490][ C3] ? iterate_tty_write+0x8f/0x540
[ 1408.270651][ C3] iterate_tty_write+0x222/0x540
[ 1408.270810][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1408.270968][ C3] file_tty_write.constprop.0+0x1cf/0x360
[ 1408.271132][ C3] vfs_write+0xa77/0x11d0
[ 1408.271254][ C3] ? __schedule+0x153f/0x1dc0
[ 1408.271412][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1408.271579][ C3] ? __rseq_handle_notify_resume+0x354/0x4e0
[ 1408.271802][ C3] ksys_write+0xf5/0x1e0
[ 1408.271921][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1408.272110][ C3] do_syscall_64+0xc1/0x1d0
[ 1408.272271][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1408.272466][ C3] RIP: 0033:0x7f410d517957
[ 1408.272640][ 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
[ 1408.273174][ C3] RSP: 002b:00007ffc3ebe8048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1408.273415][ C3] RAX: ffffffffffffffda RBX: 0000560adc8873f0 RCX: 00007f410d517957
[ 1408.273648][ C3] RDX: 0000000000000001 RSI: 0000560adc8873f0 RDI: 0000000000000001
[ 1408.273880][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1408.274117][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000560adc8725e0
[ 1408.274350][ C3] R13: 0000560adc8532a0 R14: 0000000000000001 R15: 0000560adc8725e0
[ 1408.274600][ C3]
[ 1408.274717][ C3] handlers:
[ 1408.274835][ C3] [] serial8250_interrupt
[ 1408.275181][ C3] Disabling IRQ #4