[ 642.378454] irq 4: nobody cared (try booting with the "irqpoll" option) [ 642.378574] CPU: 3 PID: 7089 Comm: perl Not tainted 6.10.0-virtme #1 [ 642.378621] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 642.378706] Call Trace: [ 642.378728] [ 642.378751] dump_stack_lvl+0x55/0x70 [ 642.378798] __report_bad_irq+0x2b/0xc0 [ 642.378835] note_interrupt+0x2a7/0x2f0 [ 642.378863] handle_irq_event+0x72/0x80 [ 642.378895] handle_edge_irq+0x8b/0x230 [ 642.378929] __common_interrupt+0x3c/0xb0 [ 642.378958] common_interrupt+0x80/0x90 [ 642.378995] [ 642.379017] [ 642.379036] asm_common_interrupt+0x26/0x40 [ 642.379074] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30 [ 642.379110] 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 fc 27 0a 6f <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90 [ 642.379211] RSP: 0018:ffffb2b48036fd60 EFLAGS: 00000286 [ 642.379247] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017 [ 642.379301] RDX: ffffffff90b7db2d RSI: 0000000000000282 RDI: ffffffff924f7580 [ 642.379359] RBP: ffff9dea41f8c000 R08: 00000095a4dd7e33 R09: 0000000000000001 [ 642.379416] R10: ffff9dea4200b1f8 R11: 0000000000000000 R12: ffffffff924f7580 [ 642.379468] R13: 0000000000000282 R14: ffff9dea4200b400 R15: ffff9dea4200b000 [ 642.379524] ? rpm_suspend+0x1ad/0x5e0 [ 642.379564] uart_write+0x89/0x150 [ 642.379623] n_tty_write+0x1a6/0x520 [ 642.379655] ? __pfx_woken_wake_function+0x10/0x10 [ 642.379690] file_tty_write.constprop.0+0x14d/0x330 [ 642.379723] vfs_write+0x332/0x460 [ 642.379755] ksys_write+0x63/0xe0 [ 642.379782] do_syscall_64+0x9e/0x1a0 [ 642.379808] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 642.379841] RIP: 0033:0x7f271e01b957 [ 642.379868] 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 [ 642.379967] RSP: 002b:00007ffe907aeaa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 642.380013] RAX: ffffffffffffffda RBX: 000055a59a653110 RCX: 00007f271e01b957 [ 642.380058] RDX: 0000000000000001 RSI: 000055a59a653110 RDI: 0000000000000001 [ 642.380098] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 642.380138] R10: 0000000000000001 R11: 0000000000000246 R12: 000055a59a63f560 [ 642.380183] R13: 000055a59a6202a0 R14: 0000000000000001 R15: 000055a59a63f560 [ 642.380224] [ 642.380242] handlers: [ 642.380261] [<00000000faaeeb1c>] serial8250_interrupt [ 642.380293] Disabling IRQ #4