Re: [PATCH] Linux Kernel Markers 0.5 for Linux 2.6.17 (with probe management)

Mathieu Desnoyers
2006-09-21T21:54:26Z

* Mathieu Desnoyers (compudj@krystal.dyndns.org) wrote:
> * Ingo Molnar (mingo@elte.hu) wrote:
>
> > "As an example, LTTng traces the page fault handler, when kprobes just
> > can't instrument it."
> >
> > but tracing a raw pagefault at the arch level is a bad idea anyway, we
> > want to trace __handle_mm_fault(). That way you can avoid having to
> > modify every architecture's pagefault handler ...
> >
>
> Then you lose the ability to trace in-kernel minor page faults.
>
But I agree with you that an upstream MARKER makes more sense in
__handle_mm_fault(). :-)

Regards,

Mathieu

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