Messages in this thread | | | Subject | RE: APIC error on CPUx | Date | Mon, 22 May 2006 10:47:30 -0400 | From | "Brown, Len" <> |
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>The problem goes away with noapic or acpi=off, but of course that also >means you don't have IRQs > 15.
"acpi=off" is a superset of "noapic" here, presumably because the board doesn't have MPS tables that describe the IOAPIC when ACPI is off.
"noapic" is a perfectly reasonable thing to use if you don't have a lot of interrupt sources and there is no more sharing in PIC mode than IOAPIC mode.
The advantage of using IOAPIC mode is that the system has more interrupt pins availalble and this allows sharing to be avoided. It also allows the system to target the interrupts to any processor when you have more than one.
cheers, -Len - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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