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SubjectRe: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?


On Fri, 12 Jan 2001, Frank de Lange wrote:

> On Fri, Jan 12, 2001 at 08:33:15PM +0100, Manfred Spraul wrote:
> > Frank, the 2.4.0 contains 2 band aids that were added for ne2k smp:
> >
> > * From Ingo: focus cpu disabled, in arch/i386/kernel/apic.c
> > * From myself: TARGET_CPU = cpu_online_mask, was 0xFF.
> >
> > Could you disable both bandaids? I disabled them, no problems so far.
>
> I disabled both (I guess you meant the 'define TARGET_CPUS cpu_online' in
> io_apic.c?), and reverted my own patch, added your patch... Now running with
> the usual heavy network load, no problems so far... Also made USB produce
> interrupts (shares irq with network), no problems...
>
> Could this really be the solution?

I'd like to know _which_ of the two makes a difference (or does it only
trigger with both of them enabled)? And even then I'm not sure that it is
"the" solution - both changes to io-apic handling had some reason for
them. Ingo, what was the focus-cpu thing?

Linus

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