From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Any MIPS assembly experts in the house? |
Date: | 2005-08-26 20:20:49 |
Message-ID: | 22443.1125087649@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> writes:
> Tom Lane wrote:
>> which makes it seem highly probable that this recently committed patch
>> to convert the MIPS out-of-line spinlock code into inline assembler
>> isn't right:
>> http://archives.postgresql.org/pgsql-committers/2005-08/msg00319.php
> As the owner of said machine I was about to report the problem - but on
> a subsequent run of the buildfarm-script(to get access to the compiled
> source for further debugging and testing) it completed without an error.
Unfortunately, that just says that the failure is intermittent, which is
pretty much exactly what you'd expect from not-quite-right locking code.
Try running the parallel regression tests several times in a row. (The
serial test mode is unlikely to exhibit any problem.) I tend to do this
by installing the test postmaster and then doing "make
installcheck-parallel" over and over, rather than repeating "make
check"; repeatedly building a test installation is just wasting time
for this sort of thing.
regards, tom lane
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