[ 425.917387] Mirror/redirect action on [ 436.321137] irq 4: nobody cared (try booting with the "irqpoll" option) [ 436.321251] CPU: 3 PID: 8049 Comm: perl Not tainted 6.10.0-rc6-virtme #1 [ 436.321293] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 436.321359] Call Trace: [ 436.321384] [ 436.321405] dump_stack_lvl+0x55/0x70 [ 436.321440] __report_bad_irq+0x2b/0xc0 [ 436.321469] note_interrupt+0x2a7/0x2f0 [ 436.321493] handle_irq_event+0x72/0x80 [ 436.321518] handle_edge_irq+0x8b/0x230 [ 436.321543] __common_interrupt+0x3c/0xb0 [ 436.321571] common_interrupt+0x80/0x90 [ 436.321599] [ 436.321617] [ 436.321637] asm_common_interrupt+0x26/0x40 [ 436.321677] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 436.321714] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d ec 15 6b 6c <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 436.321808] RSP: 0018:ffffb37608633d60 EFLAGS: 00000286 [ 436.321842] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 436.321889] RDX: ffffffff9357040d RSI: 0000000000000286 RDI: ffffffff94ee7300 [ 436.321929] RBP: ffff902501ecc000 R08: 00000065a627e7d0 R09: 0000000000000001 [ 436.321973] R10: ffff9025025905f8 R11: 0000000000000000 R12: ffffffff94ee7300 [ 436.322017] R13: 0000000000000286 R14: ffff902502591000 R15: ffff902502590400 [ 436.322062] ? rpm_suspend+0x1ad/0x5e0 [ 436.322095] uart_write+0x89/0x150 [ 436.322131] n_tty_write+0x1a6/0x520 [ 436.322159] ? __pfx_woken_wake_function+0x10/0x10 [ 436.322194] file_tty_write.constprop.0+0x14d/0x330 [ 436.322228] vfs_write+0x332/0x460 [ 436.322257] ksys_write+0x63/0xe0 [ 436.322283] do_syscall_64+0x9e/0x1a0 [ 436.322311] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 436.322345] RIP: 0033:0x7f486159a957 [ 436.322371] 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 [ 436.322469] RSP: 002b:00007fff00558be8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 436.322513] RAX: ffffffffffffffda RBX: 00005641d5118fd0 RCX: 00007f486159a957 [ 436.322557] RDX: 0000000000000001 RSI: 00005641d5118fd0 RDI: 0000000000000001 [ 436.322601] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 436.322656] R10: 0000000000000001 R11: 0000000000000246 R12: 00005641d5105560 [ 436.322700] R13: 00005641d50e62a0 R14: 0000000000000001 R15: 00005641d5105560 [ 436.322745] [ 436.322762] handlers: [ 436.322780] [<00000000b10c9ac8>] serial8250_interrupt [ 436.322817] Disabling IRQ #4