From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
---|---|
To: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: uninitialized values in revised prepared xact code |
Date: | 2014-10-24 14:40:04 |
Message-ID: | 20141024144004.GL5790@alap3.anarazel.de |
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Lists: | pgsql-hackers |
On 2014-10-24 17:13:49 +0300, Heikki Linnakangas wrote:
> Yeah. The padding bytes in TwoPhaseFileHeader were not initialized.
>
> That's simple enough to fix, but when I run valgrind, I get a lot whole
> bunch of similar messages. A few are from pgstat: the padding bytes in the
> pgstat messages are not initialized. One comes from
> write_relcache_init_file(); again I believe it's padding bytes being
> uninitialized (in FormData_pg_attribute). And one from the XLogInsert from
> heap_insert; there's an uninitialized padding byte in xl_heap_insert. And so
> forth.. Is it worthwhile to hunt down all of these? If there aren't many
> more than these, it probably is worth it, but I fear this might be an
> endless effort. Have we been clean of these warnings at any point in the
> past?
Did you use the valgrind suppression file in src/tools? It suppresses
some "known harmless" cases.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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