notify_page_fault() problem

[Quentin Barnes]

On Tue, May 01, 2007 at 11:40:29AM -0400, Frank Ch. Eigler wrote:
>Quentin Barnes <qbarnes@urbana.css.mot.com> writes:
>
>> [...]  That doesn't matter.  Just having the kprobes and kretprobes
>> data structures being in module memory is all that matters.  [...]
>
>I recall thinking of extending the systemtap startup code sequence to
>force mapping of the entire module data/text memory, hoping to prevent
>vmalloc faults during execution.  Does this sound like a plausible
>hack around such problems?

That would be a workaround for the bug for Systemtap modules, but it's
a Kprobe implementation problem, not a Systemtap problem.  I'd rather
not hide the problem, but to see it get addressed directly like it has
on x86_64 and i386.

>- FChE

Quentin