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

[Mathieu Desnoyers]

* Mathieu Desnoyers (compudj@xxxxxxxxxxxxxxxxxx) wrote:
> * Ingo Molnar (mingo@xxxxxxx) 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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