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Brown, Len wrote: > > >>>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 > > > My experience yesterday: Server with 'noapic' cannot boot, kernel reports something like "Lost interrupt: hde" ( it was said by my college, server is not in my physical control ) . With 'acpi=off' it boots, but errors appear again. Brief datasheet about the board is here: http://www.abclinuxu.cz/images/hosting/sr1200.pdf Vladimir - 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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