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SubjectRe: locked 3c905B with 2.4.5pre2


On Thu, 17 May 2001, Andrew Morton wrote:

> > eth0: Interrupt posted but not delivered -- IRQ blocked by another device?
> This is a failure of the APIC interrupt controller in
> the 2.4 kernel. You'll need to boot your kernel with
> the `noapic' LILO option. Or run -ac kernels, which
> have a software workaround which fixes the problem.

Yes, it seems noapic solved the problem with the lockup :(

> Rumour has it that the APIC fix will be merged into Linus' tree
> very soon. It needs to be - one of the more important ethernet
> drivers is basically unviable on x86 SMP in 2.4.

Agreed :) The performance sucks without apic.


Julian Anastasov <>

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