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SubjectRe: [PATCH] remove LOCK_SECTION from x86_64 spin_lock asm
On Wed, 15 Sep 2004, Andrew Morton wrote:

> Zwane Mwaikambo <zwane@fsmlabs.com> wrote:
> >
> > William spotted this stray bit, LOCK_SECTION isn't used anymore on x86_64.
>
> btw, Ingo and I were scratching heads over an x86_64 oops in curent -linus
> trees.
>
> If you enable profiling and frame pointers, profile_pc() goes splat
> dereferencing the `regs' argument when it decides that the pc refers to a
> lock section. Ingo said `regs' had a value of 0x2, iirc. Consider this a
> bug report ;)

Yeah profile_pc on x86_64 is just broken, i'll have a look.

Thanks,
Zwane

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