Re: 8.0.0 gmake check fails if on disk, passes on ram disk....

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Michael Fuhr <mike(at)fuhr(dot)org>
Cc: Jeff Ross <jross-dated-1106784195(dot)b5de5a(at)openvistas(dot)net>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: 8.0.0 gmake check fails if on disk, passes on ram disk....
Date: 2005-01-24 15:24:56
Message-ID: 21305.1106580296@sss.pgh.pa.us
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Michael Fuhr <mike(at)fuhr(dot)org> writes:
> On Fri, Jan 21, 2005 at 05:03:08PM -0700, Jeff Ross wrote:
>> If I put the same source code up on a ram disk, configure and compile it
>> the same way, all 96 tests pass.

> Interesting. Is this behavior consistent? What's different 'twixt
> the RAID disk and the RAM disk?

If the problem is at bottom a too low processes-per-user limit, as it
was for Jean-Gerard, then maybe the RAM-disk case passes because of
different timing details. This theory is a bit of a stretch though.

In any case, we're being shown the wrong output. What I want to know is
what appears in the postmaster log when these failures happen?

regards, tom lane

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