On Thursday 15 February 2007, Mike Panetta wrote: > I did try that. The BIOS only allows me to either allocate an IRQ to be > a PCI interrupt, or reserve it (for what I have no idea). The IRQ's > listed in the BIOS are also different from the ones Linux sees. I think > the BIOS is seeing the XT-PIC IRQ numbers and Linux is seeing the APIC > numbers. For example the little bios blurb that prints before the > system boots says the USB controller I am interested in is > assigned/using IRQ 10, Linux sees it using IRQ 18. > > I have found that I can keep Linux from using the APIC by disabling it > with a kernel command line switch, but that does not help, it just makes > Linux use the XT-PIC instead of the IO-APIC to do IRQ routing. > > So I guess I'm back to my original question of 'Would changing the > vector numbers do what I want?' and if the answer is 'yes', how would I > do it?
With XT-PIC, there was a way to change the priotrities used by the IRQ. It was called irqtune iirc. Ah ya, http://cae.best.vwh.net/irqtune/ Dunno if there's something similar available for APIC.. Regards, Flo -- Palimm Palimm! http://tapas.affenbande.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
