Re: Segfault on exclusion constraint violation

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: Dennis Pozzi <dpozzi(at)adobe(dot)com>
Cc: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Pg Bugs <pgsql-bugs(at)postgresql(dot)org>, "David Gould (daveg(at)sonic(dot)net)" <daveg(at)sonic(dot)net>, Saravanakumar T R <satr(at)adobe(dot)com>
Subject: Re: Segfault on exclusion constraint violation
Date: 2015-03-18 05:42:11
Message-ID: CAB7nPqSmJQTDx8Eq49HOdGQXLJs_sCwNQYurDWA=k6VGdsce2A@mail.gmail.com
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On Wed, Mar 18, 2015 at 12:15 AM, Dennis Pozzi <dpozzi(at)adobe(dot)com> wrote:
> We have not been able to reproduce the error, but we are testing scenarios in our staging environment now.

If this is the same problem, this will be fixed in the next minor
release as the fix has been committed here after 9.4.1 was released:
commit: 57fe246890ad51e166fb6a8da937e41c35d7a279
author: Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi>
date: Wed, 4 Feb 2015 16:00:34 +0200
Fix reference-after-free when waiting for another xact due to constraint.

Now, if you are able to produce a self-contained test case that fails
even on HEAD, well that's another story...
Regards,
--
Michael

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