| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
| Cc: | Christoph Berg <christoph(dot)berg(at)credativ(dot)de>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Bernd Helmle <bernd(at)oopsware(dot)de>, Andreas Seltenreich <andreas(dot)seltenreich(at)credativ(dot)de> |
| Subject: | Re: 9.3.9 and pg_multixact corruption |
| Date: | 2015-09-24 22:30:47 |
| Message-ID: | 20150924223047.GG295765@alvherre.pgsql |
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| Lists: | pgsql-hackers |
Jim Nasby wrote:
> On 9/20/15 9:23 AM, Christoph Berg wrote:
> >a short update here: the customer updated the compiler to a newer
> >version, is now compiling using -O2 instead of -O3, and the code
> >generated now looks sane, so this turned out to be a compiler issue.
> >(Though it's unclear if the upgrade fixed it, or the different -O
> >level.)
>
> Do we officially not support anything > -O2? If so it'd be nice if configure
> threw at least a warning (if not an error that you had to explicitly
> over-ride).
Keep in mind this is Sun OS C -- not one of the most popular compilers
in the world. I don't know what you suggest: have a test program that
configure runs and detects whether the compiler does the wrong thing?
It doesn't seem a sane idea to maintain test cases for all known
compiler bugs ...
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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