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Re: pgsql: Fix portalmem.c to avoid keeping a dangling pointer to a cached

From: Tatsuo Ishii <ishii(at)postgresql(dot)org>
To: tgl(at)postgresql(dot)org
Cc: pgsql-committers(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pgsql: Fix portalmem.c to avoid keeping a dangling pointer to a cached
Date: 2010-01-18 03:44:18
Message-ID: 20100118.124418.62367192.t-ishii@sraoss.co.jp (view raw or flat)
Thread:
Lists: pgsql-committerspgsql-hackers
> Log Message:
> -----------
> Fix portalmem.c to avoid keeping a dangling pointer to a cached plan list
> after it's released its reference count for the cached plan.  There are
> code paths that might try to examine the plan list before noticing that
> the portal is already in aborted state.  Report and diagnosis by Tatsuo
> Ishii, though this isn't exactly his proposed patch.
> 
> Modified Files:
> --------------
>     pgsql/src/backend/utils/mmgr:
>         portalmem.c (r1.115 -> r1.116)
>         (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mmgr/portalmem.c?r1=1.115&r2=1.116)

Thanks. I confirmed the problem goes away. BTW, are we going to back
patch to 8.2 or before?
--
Tatsuo Ishii
SRA OSS, Inc. Japan

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