[ 2341.226431][ C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 2341.226821][ C3] CPU: 3 PID: 6817 Comm: perl Not tainted 6.8.0-rc5-virtme #1
[ 2341.227065][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2341.227519][ C3] Call Trace:
[ 2341.227645][ C3]
[ 2341.227738][ C3] dump_stack_lvl+0x64/0xb0
[ 2341.227920][ C3] __report_bad_irq+0x5f/0x180
[ 2341.228083][ C3] note_interrupt+0x6b3/0x860
[ 2341.228243][ C3] handle_irq_event+0x16d/0x1c0
[ 2341.228408][ C3] handle_edge_irq+0x1fa/0xb60
[ 2341.228572][ C3] __common_interrupt+0x7c/0x180
[ 2341.228742][ C3] common_interrupt+0x7e/0x90
[ 2341.228903][ C3]
[ 2341.228987][ C3]
[ 2341.229074][ C3] asm_common_interrupt+0x26/0x40
[ 2341.229229][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 2341.229439][ C3] Code: 10 e8 f1 35 a4 fd 48 89 ef e8 19 a2 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 15 c8 59 51 <74> 0e 5b 5d c3 cc cc cc cc e8 3f 5e c6 fd eb dc 0f 1f 44 00 00 5b
[ 2341.230001][ C3] RSP: 0018:ffffc900025dfa88 EFLAGS: 00000286
[ 2341.230207][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff6398ad1
[ 2341.230451][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaea9eac1
[ 2341.230686][ C3] RBP: ffffffffb25a3d20 R08: 0000000000000001 R09: fffffbfff6393c78
[ 2341.230916][ C3] R10: ffffffffb1c9e3c7 R11: 0000000000000000 R12: 0000000000000be9
[ 2341.231171][ C3] R13: ffffffffb25a3e28 R14: ffffffffb25a3d20 R15: ffff888004490000
[ 2341.231418][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 2341.231620][ C3] uart_write+0x220/0x440
[ 2341.231749][ C3] process_output_block+0x13e/0x790
[ 2341.231907][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370
[ 2341.232103][ C3] n_tty_write+0x414/0x7a0
[ 2341.232269][ C3] ? __pfx_n_tty_write+0x10/0x10
[ 2341.232426][ C3] ? __pfx_woken_wake_function+0x10/0x10
[ 2341.232587][ C3] ? lock_acquire+0x1c1/0x220
[ 2341.232748][ C3] ? iterate_tty_write+0x95/0x540
[ 2341.232921][ C3] iterate_tty_write+0x229/0x540
[ 2341.233079][ C3] ? tty_ldisc_ref_wait+0x28/0x80
[ 2341.233245][ C3] file_tty_write.constprop.0+0x1db/0x370
[ 2341.233402][ C3] vfs_write+0x9e9/0x10a0
[ 2341.233527][ C3] ? lock_acquire+0x1c1/0x220
[ 2341.233687][ C3] ? __pfx_vfs_write+0x10/0x10
[ 2341.233845][ C3] ? __might_fault+0xc6/0x180
[ 2341.234014][ C3] ? kvm_clock_get_cycles+0x18/0x30
[ 2341.234177][ C3] ? __fget_light+0x54/0x1e0
[ 2341.234337][ C3] ksys_write+0xf5/0x1e0
[ 2341.234455][ C3] ? __pfx_ksys_write+0x10/0x10
[ 2341.234619][ C3] do_syscall_64+0xc9/0x1e0
[ 2341.234796][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 2341.234994][ C3] RIP: 0033:0x7fa790119957
[ 2341.235155][ 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
[ 2341.235702][ C3] RSP: 002b:00007fff90019a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 2341.235942][ C3] RAX: ffffffffffffffda RBX: 0000563e16b91070 RCX: 00007fa790119957
[ 2341.236167][ C3] RDX: 0000000000000001 RSI: 0000563e16b91070 RDI: 0000000000000001
[ 2341.236400][ C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 2341.236643][ C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000563e16b7d590
[ 2341.236877][ C3] R13: 0000563e16b5e2a0 R14: 0000000000000001 R15: 0000563e16b7d590
[ 2341.237128][ C3]
[ 2341.237253][ C3] handlers:
[ 2341.237384][ C3] [] serial8250_interrupt
[ 2341.237768][ C3] Disabling IRQ #4
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr
WAIT TIMEOUT stderr