| From: | Ants Aasma <ants(at)cybertec(dot)at> |
|---|---|
| To: | Florian Pflug <fgp(at)phlo(dot)org> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bruce Momjian <bruce(at)momjian(dot)us>, Jeff Davis <pgsql(at)j-davis(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Greg Smith <greg(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Enabling Checksums |
| Date: | 2013-04-18 17:24:32 |
| Message-ID: | CA+CSw_vKD+ttWet12KwFiQPo=jNd1yHt=W6tVqthL9TqhgLWBQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Apr 18, 2013 at 8:15 PM, Florian Pflug <fgp(at)phlo(dot)org> wrote:
> So either the CRC32-C polynomial isn't irreducible, or there something
> fishy going on. Could there be a bug in your CRC implementation? Maybe
> a mixup between big and little endian, or something like that?
I'm suspecting an implementation bug myself. I already checked the
test harness and that was all sane, compiler hadn't taken any
unforgivable liberties there. I will crosscheck the output with other
implementations to verify that the checksum is implemented correctly.
Regards,
Ants Aasma
--
Cybertec Schönig & Schönig GmbH
Gröhrmühlgasse 26
A-2700 Wiener Neustadt
Web: http://www.postgresql-support.de
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