Re: APIC problem or 3com 3c590 driver problem in smp kernel 2.4.x

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 2 Jun 2001 17:06:59 +0100 (BST)


> It's our own's card. so it could be the card's problem. does the pci
> device have to do some special thing to support APIC? my card won't work

Nope. APIC is invisible to a correctly built piece of hardware. It just changes
how INTA-INTD are handled at the host end of things

> properly on uni-processor with APIC enable kernel or smp kernel when the
> card is sharing IRQ with some other pci devices.

That sounds like the driver isnt testing the irq was sourced by that card. You
also see hangups on insmod/rmmod when people do

writel(ENABLE_MY_IRQ, my_card->control);

before they request the IRQ and are able to clear it
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