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SubjectRe: [BUG] 2.6.6-rc2-bk5 mm/slab.c change broke x86-64 SMP
corbet@lwn.net (Jonathan Corbet) wrote:
>
> > Does this fix?
> >
> > diff -puN include/asm-x86_64/processor.h~a include/asm-x86_64/processor.h
> > --- 25/include/asm-x86_64/processor.h~a Fri Apr 30 11:24:58 2004
> > +++ 25-akpm/include/asm-x86_64/processor.h Fri Apr 30 11:25:28 2004
> > @@ -20,6 +20,8 @@
> > #include <asm/mmsegment.h>
> > #include <linux/personality.h>
> >
> > +#define ARCH_MIN_TASKALIGN L1_CACHE_BYTES
> > +
>
> That made my x86_64 boot problem go away; with that patch the system comes
> up just fine.

OK, thanks. It broke parisc too...

> Now I have weird display problems with my Radeon card instead. Ever seen X
> running 100% in kernel space, unkillable?

I did, about a year ago. It was spinning madly in some ioctl waiting for a
bit in a device register to change state. Are you able to generate a
kernel profile while it's being silly? That will tell us where it's stuck.
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