Messages in this thread | | | From | Andrew de Quincey <> | Subject | Re: 2.6.0-test1: irq18 nobody cared! on Intel D865PERL motherboard -- found it! | Date | Sun, 27 Jul 2003 01:17:06 +0100 |
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> There is something else that is not being done by linux. I'd assumed this > was an nforce2-specific issue, but your results hint that it may be larger > than this.
Yay! I've found it. What seems to be happening is the PIC is left connected to the PCI IRQ lines, and is causing problems.. I assume pulling the lines up/down incorrectly.
My BIOS lets me define which PIC IRQs are allocated to PCI and which are "reserved". I set them all to reserved, effectively disabling any IRQs < 15 being allocated to PCI. Now everything works perfectly.
I've downloaded the manual for your motherboard, but I can't see anything like that for your board.. all you can do is the standard choose IRQ, or auto.
Anyway, now I know what is causing this, expect a patch soon.
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