Horton

valgrind vs. shared typmod registry

Tomas Vondra <tomas.vondra@2ndquadrant.com>

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From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-09-16T12:30:19Z
Lists: pgsql-hackers

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Hi,

I've been running some regression tests under valgrind, and it seems
select_parallel triggers some uses of uninitialized values in dshash. If
I'm reading the reports right, it complains about hashtable->size_log2
being not being initialized in ensure_valid_bucket_pointers.

I've been running tests under valgrind not too long ago and I don't
recall such failures, so perhaps something broke it in the past few days.


regards

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

Commits

  1. Fix uninitialized variable in dshash.c.