Re: Assert failure found in 8.1RC1

From: Robert Creager <Robert(dot)Creager(at)Sun(dot)com>
To: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
Cc: "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Creager <Robert(dot)Creager(at)Sun(dot)com>, PGHackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Assert failure found in 8.1RC1
Date: 2005-11-08 21:09:35
Message-ID: 20051108140935.0000615b@C118181.stortek.com
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On Tue, 08 Nov 2005 14:09:58 -0600
"Jim C. Nasby" <jnasby(at)pervasive(dot)com> wrote:

> On Fri, Nov 04, 2005 at 08:46:27PM -0400, Marc G. Fournier wrote:
> > On Fri, 4 Nov 2005, Jim C. Nasby wrote:
> > For all the talk about "couldn't it be part of regression", I haven't seen
> > anyone submit a patch that would test for it ... since I believe both you
> > and Tom have both stated that "for things like race conditions, I don't
> > know that you can create reproducable cases", can you submit a patch for
> > how you propose this should be added to the regression tests?
>
> I have an idea, but it might be better if Robert could produce a test
> case since it would cover both a context storm issue as well as this
> race condition.
>

Actually, I have a test case. I just sent it out to Tom a couple of hours ago.
The quick and dirty is that it shows the problem after running for about 20
minutes on my Xenon system with 8.1.0... I cannot get it to fail on my AMD
system with a much higher load...

I can send it to others who are interested. The e-mail with dump, module and
script is just over 1Mb.

Cheers,
Rob

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