Re: AtAbort_Portsl problem

From: Tatsuo Ishii <ishii(at)postgresql(dot)org>
To: tgl(at)sss(dot)pgh(dot)pa(dot)us
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: AtAbort_Portsl problem
Date: 2010-01-18 00:49:46
Message-ID: 20100118.094946.85395994.t-ishii@sraoss.co.jp
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> Tatsuo Ishii <ishii(at)postgresql(dot)org> writes:
> > While ago, I reported a problem regarding exec_execute_message crash
> > in transaction abort state if sync message issued right after parse,
> > bind and execute message (which is normal if used with pgpool). After
> > further investigation, I concluded that there's a serious problem with
> > unnamed portal handling.
>
> I was never able to get your test case to work (or, rather, crash).
> Does this patch address the original issue, or is this something
> different?

The patch addresses the original issue. The reason why you didn't see
crash was just you were lucky, I believe. I'm sure that your
exec_execute_message looks into already-freed-memory.
--
Tatsuo Ishii
SRA OSS, Inc. Japan

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