* Mathieu Desnoyers <[email protected]> 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.
that's wrong, minor pagefaults go through __handle_mm_fault() just as
much.
Ingo
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