[ 3203.528343][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 3203.528735][ C3] CPU: 3 PID: 16378 Comm: perl Not tainted 6.8.0-rc5-virtme #1
[ 3203.529000][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 3203.529370][ C3] Call Trace:
[ 3203.529508][ C3]
[ 3203.529607][ C3] dump_stack_lvl+0x64/0xb0
[ 3203.529789][ C3] __report_bad_irq+0x5f/0x180
[ 3203.529963][ C3] note_interrupt+0x6b3/0x860
[ 3203.530142][ C3] handle_irq_event+0x16d/0x1c0
[ 3203.530311][ C3] handle_edge_irq+0x1fa/0xb60
[ 3203.530485][ C3] __common_interrupt+0x7c/0x180
[ 3203.530659][ C3] common_interrupt+0x7e/0x90
[ 3203.530824][ C3]
[ 3203.530920][ C3]
[ 3203.531012][ C3] asm_common_interrupt+0x26/0x40
[ 3203.531178][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 3203.531399][ C3] Code: 10 e8 c1 e7 a3 fd 48 89 ef e8 d9 6f a4 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 65 49 95 56 <74> 0e 5b 5d c3 cc cc cc cc e8 df 2e c6 fd eb dc 0f 1f 44 00 00 5b
[ 3203.532019][ C3] RSP: 0018:ffffc90002f3fa88 EFLAGS: 00000286
[ 3203.532241][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff5993da4
[ 3203.532489][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa98a6d71
[ 3203.532775][ C3] RBP: ffffffffad638820 R08: 0000000000000001 R09: fffffbfff598d684
[ 3203.533026][ C3] R10: ffffffffacc6b427 R11: 0000000000000000 R12: 00000000000009e6
[ 3203.533291][ C3] R13: ffffffffad638930 R14: ffffffffad638820 R15: ffff8880053b0000
[ 3203.533555][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 3203.533792][ C3] uart_write+0x220/0x440
[ 3203.533926][ C3] process_output_block+0x13e/0x790
[ 3203.534095][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 3203.534314][ C3] n_tty_write+0x414/0x7a0
[ 3203.534493][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 3203.534665][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 3203.534836][ C3] ? lock_acquire+0x1c1/0x220
[ 3203.535002][ C3] ? iterate_tty_write+0x95/0x540
[ 3203.535177][ C3] iterate_tty_write+0x229/0x540
[ 3203.535363][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 3203.535536][ C3] vfs_write+0x9e9/0x10a0
[ 3203.535667][ C3] ? lock_acquire+0x1c1/0x220
[ 3203.535840][ C3] ? __pfx_vfs_write+0x10/0x10
[ 3203.536012][ C3] ? __might_fault+0xc6/0x180
[ 3203.536197][ C3] ? kvm_clock_get_cycles+0x18/0x30
[ 3203.536378][ C3] ? __fget_light+0x54/0x1e0
[ 3203.536557][ C3] ksys_write+0xf5/0x1e0
[ 3203.536688][ C3] ? __pfx_ksys_write+0x10/0x10
[ 3203.536864][ C3] do_syscall_64+0xc9/0x1e0
[ 3203.537036][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 3203.537242][ C3] RIP: 0033:0x7f9d190ab957
[ 3203.537423][ 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
[ 3203.538012][ C3] RSP: 002b:00007ffe6ee5d7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 3203.538272][ C3] RAX: ffffffffffffffda RBX: 000056096fe931b0 RCX: 00007f9d190ab957
[ 3203.538532][ C3] RDX: 0000000000000001 RSI: 000056096fe931b0 RDI: 0000000000000001
[ 3203.538791][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 3203.539046][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000056096fe7f590
[ 3203.539297][ C3] R13: 000056096fe602a0 R14: 0000000000000001 R15: 000056096fe7f590
[ 3203.539559][ C3]
[ 3203.539685][ C3] handlers:
[ 3203.539828][ C3] [] serial8250_interrupt
[ 3203.540185][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr