Hi, Firstly, this is a coreboot issue rather than kernel issue. I don't know how to deal with it so come here to ask for help. I am debugging coreboot which is an open source bios on a mainboard now. the mainboard is tyan s8226, which has two CPUs and each CPU has 8 cores. the details of s8226 could be googled. I can't insert link. I encountered a problem these days. The dmesg has such error: do_IRQ: X 55 No irq handler for vector (irq -1) where X is from 1 to 10 this message is printed by do_IRQ() in arch/x86/kernel/irq.c this is my coreboot issue, because other bios doesn't have this dmesg error. it seems that this error has no effect to the system. Linux works well now. But I want to resolve this issue. I am not familiar with linux kernel, so I don't know how to locate the problem. would anybody give me some suggestion? thank you! I can't send the whole dmesg, because it is rejected. I don't know why. -- WANG Siyuan -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html