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SubjectRe: [RFC/PATCH, 2/4] readX_check() performance evaluation


On Wed, 28 Jan 2004, Andi Kleen wrote:
>
> On Wed, 28 Jan 2004 11:33:33 -0800 (PST)
> Linus Torvalds <torvalds@osdl.org> wrote:
>
> > For example, if checking for an error involves actually reading a value
> > from a bridge register, then that implies some _serious_ amount of
> > serialization and external CPU stuff.
>
> Which is _extremly_ hard to do from an MCE handler ...

So don't do it in the MCE handler.

Just set a flag aka "may need checking", and let the check be done by the
actual "read_pcix_error()" code.

Linus
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