[ 1458.142739][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1458.143113][ C3] CPU: 3 PID: 7849 Comm: perl Not tainted 6.9.0-rc1-virtme #1
[ 1458.143370][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1458.143737][ C3] Call Trace:
[ 1458.143866][ C3]
[ 1458.143958][ C3] dump_stack_lvl+0x82/0xd0
[ 1458.144148][ C3] __report_bad_irq+0x5f/0x180
[ 1458.144329][ C3] note_interrupt+0x6b3/0x860
[ 1458.144500][ C3] handle_irq_event+0x16d/0x1c0
[ 1458.144666][ C3] handle_edge_irq+0x1fa/0xb60
[ 1458.144839][ C3] __common_interrupt+0x7c/0x180
[ 1458.145013][ C3] common_interrupt+0x7e/0x90
[ 1458.145184][ C3]
[ 1458.145273][ C3]
[ 1458.145359][ C3] asm_common_interrupt+0x26/0x40
[ 1458.145529][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1458.145750][ C3] Code: 10 e8 11 49 9b fd 48 89 ef e8 49 b9 9b 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 f5 be 8f 68 <74> 0e 5b 5d c3 cc cc cc cc e8 3f b3 be fd eb dc 0f 1f 44 00 00 5b
[ 1458.146332][ C3] RSP: 0018:ffffc900010afa80 EFLAGS: 00000286
[ 1458.146827][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff35286f0
[ 1458.147077][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff97740921
[ 1458.147325][ C3] RBP: ffffffff9b2241a0 R08: 0000000000000001 R09: fffffbfff35238b0
[ 1458.147583][ C3] R10: ffffffff9a91c587 R11: 0000000000000000 R12: 0000000000000624
[ 1458.147836][ C3] R13: ffffffff9b2242a8 R14: ffffffff9b2241a0 R15: ffff888003540000
[ 1458.148093][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1458.148313][ C3] uart_write+0x224/0x450
[ 1458.148447][ C3] process_output_block+0x13e/0x790
[ 1458.148616][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370
[ 1458.148830][ C3] n_tty_write+0x412/0x7a0
[ 1458.149010][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 1458.149175][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 1458.149343][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 1458.149509][ C3] ? iterate_tty_write+0x95/0x540
[ 1458.149678][ C3] ? lock_acquire+0x32/0xc0
[ 1458.149848][ C3] ? iterate_tty_write+0x95/0x540
[ 1458.150027][ C3] iterate_tty_write+0x228/0x540
[ 1458.150212][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 1458.150385][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 1458.150567][ C3] vfs_write+0x9e5/0x10a0
[ 1458.150698][ C3] ? __pfx___lock_release+0x10/0x10
[ 1458.150869][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1458.151042][ C3] ? __pfx_vfs_write+0x10/0x10
[ 1458.151221][ C3] ? __fget_light+0x53/0x1e0
[ 1458.151396][ C3] ksys_write+0xf5/0x1e0
[ 1458.151531][ C3] ? __pfx_ksys_write+0x10/0x10
[ 1458.151704][ C3] do_syscall_64+0xc6/0x1e0
[ 1458.151873][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.152077][ C3] RIP: 0033:0x7f08952f4957
[ 1458.152254][ 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
[ 1458.152836][ C3] RSP: 002b:00007ffdecb09f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1458.153094][ C3] RAX: ffffffffffffffda RBX: 0000562fa8c821b0 RCX: 00007f08952f4957
[ 1458.153340][ C3] RDX: 0000000000000001 RSI: 0000562fa8c821b0 RDI: 0000000000000001
[ 1458.153586][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1458.153829][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562fa8c6e590
[ 1458.154078][ C3] R13: 0000562fa8c4f2a0 R14: 0000000000000001 R15: 0000562fa8c6e590
[ 1458.154336][ C3]
[ 1458.154460][ C3] handlers:
[ 1458.154592][ C3] [] serial8250_interrupt
[ 1458.155108][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr