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SubjectRe: 2.6.0 kernel: Bind interrupt question.
On Tue, 11 Nov 2003, Anton Blanchard wrote:

> > Have you seen any problems with interrupt binding on 2.6.0-drv45003 ?
> > I tried this command to bind interrupt, but it does not work:
> > ============================
> > cat /proc/irq/165/smp_affinity
> > ffffffff00000000
> > echo 01 > /proc/irq/165/smp_affinity
> > cat /proc/irq/165/smp_affinity
> > ffffffff00000000
>
> This is probably a ppc64 specific issue, we can continue this on
> linuxppc64-dev@lists.linuxppc.org
>
> > There is nothing changed after binding.
> > One thing I see is it shows 16 digits "ffffffff00000000" on 2.6.0 while
> > only 8 digits in 2.4 .
>
> Its part of the support for > 32way machines, but it looks like its
> broken for some configurations (Im guessing you have CONFIG_NR_CPUS set
> to 32).

There was a fix which went in for something similar on i386 a while back.
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