[ 1004.225454][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1004.225795][ C3] CPU: 3 PID: 3397 Comm: perl Not tainted 6.9.0-rc7-virtme #1
[ 1004.226055][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1004.226419][ C3] Call Trace:
[ 1004.226543][ C3]
[ 1004.226635][ C3] dump_stack_lvl+0x82/0xd0
[ 1004.226820][ C3] __report_bad_irq+0x5f/0x180
[ 1004.226985][ C3] note_interrupt+0x6b3/0x860
[ 1004.227154][ C3] handle_irq_event+0x16d/0x1c0
[ 1004.227317][ C3] handle_edge_irq+0x1fa/0xb60
[ 1004.227511][ C3] __common_interrupt+0x7c/0x180
[ 1004.227778][ C3] common_interrupt+0x7e/0x90
[ 1004.228045][ C3]
[ 1004.228182][ C3]
[ 1004.228321][ C3] asm_common_interrupt+0x26/0x40
[ 1004.228530][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1004.228857][ C3] Code: 10 e8 01 63 99 fd 48 89 ef e8 39 d3 99 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 75 a6 ed 60 <74> 0e 5b 5d c3 cc cc cc cc e8 4f cd bc fd eb dc 0f 1f 44 00 00 5b
[ 1004.229663][ C3] RSP: 0018:ffffc90000b3fa80 EFLAGS: 00000286
[ 1004.229877][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff4469f54
[ 1004.230119][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9f1621a1
[ 1004.230379][ C3] RBP: ffffffffa2c30220 R08: 0000000000000001 R09: fffffbfff44650b0
[ 1004.230623][ C3] R10: ffffffffa2328587 R11: 0000000000000000 R12: 0000000000000d50
[ 1004.230868][ C3] R13: ffffffffa2c30328 R14: ffffffffa2c30220 R15: ffff888004ec0000
[ 1004.231145][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1004.231369][ C3] uart_write+0x224/0x450
[ 1004.231515][ C3] process_output_block+0x13e/0x790
[ 1004.231675][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 1004.231880][ C3] n_tty_write+0x412/0x7a0
[ 1004.232054][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1004.232213][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 1004.232385][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1004.232546][ C3] ? iterate_tty_write+0x95/0x540
[ 1004.232711][ C3] ? lock_acquire+0x32/0xc0
[ 1004.232881][ C3] ? iterate_tty_write+0x95/0x540
[ 1004.233046][ C3] iterate_tty_write+0x228/0x540
[ 1004.233220][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1004.233392][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 1004.233565][ C3] vfs_write+0x9e5/0x10a0
[ 1004.233707][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 1004.233907][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1004.234084][ C3] ? __fget_light+0xcd/0x1e0
[ 1004.234255][ C3] ? __fget_light+0x53/0x1e0
[ 1004.234415][ C3] ? clockevents_program_event+0x1ea/0x300
[ 1004.234620][ C3] ksys_write+0xf5/0x1e0
[ 1004.234746][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1004.234915][ C3] do_syscall_64+0xc3/0x1d0
[ 1004.235073][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1004.235268][ C3] RIP: 0033:0x7f0df3210957
[ 1004.235462][ 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
[ 1004.236023][ C3] RSP: 002b:00007ffde3bfe1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1004.236276][ C3] RAX: ffffffffffffffda RBX: 00005630d46d4310 RCX: 00007f0df3210957
[ 1004.236509][ C3] RDX: 0000000000000001 RSI: 00005630d46d4310 RDI: 0000000000000001
[ 1004.236744][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1004.236971][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005630d46c05c0
[ 1004.237216][ C3] R13: 00005630d46a12a0 R14: 0000000000000001 R15: 00005630d46c05c0
[ 1004.237472][ C3]
[ 1004.237596][ C3] handlers:
[ 1004.237726][ C3] [] serial8250_interrupt
[ 1004.238092][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr