Valgrind and shared_buffers (Was: Restore-reliability mode)

Peter Geoghegan wrote:

On Mon, Jul 27, 2015 at 7:12 AM, Alvaro Herrera
<alvherre@2ndquadrant.com> wrote:

I only tried a few tests, for lack of time, and it didn't produce any.
(To verify that the whole thing was working properly, I reduced the
range of memory made available during PinBuffer and that resulted in a
crash immediately). I am not really familiar with valgrind TBH and just
copied a recipe to run postmaster under it, so if someone with more
valgrind-fu could verify this, it would be great.

This part:

Under CLOBBER_FREED_MEMORY, wipe a shared buffer when its
global pin count falls to zero.

can be done without any valgrind, I think. Any takers?

It seems like this didn't go anywhere. Any chance that you'll find the
time to work on this soon?

No. How about you? If you or someone else with more valgrind
familiarity than me look it over and think it's correct, I can push it.

--
�lvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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