curious regression failures (was Re: [PATCHES] PL/TCL Patch to prevent postgres from becoming multithreaded)

Stefan Kaltenbrunner <stefan@kaltenbrunner.cc> writes:
> Tom Lane wrote:
>> Stefan Kaltenbrunner <stefan@kaltenbrunner.cc> writes:
>>> ! ERROR:  could not read block 2 of relation 1663/16384/2606: read only 0 of 8192 bytes
>> 
>> Is that repeatable?  What sort of filesystem are you testing on?
>> (soft-mounted NFS by any chance?)

> doesn't seem to be repeatable :-(

Hmm ... 
http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=luna_moth&dt=2007-09-19%2013:10:01

Exact same error --- is it at the same place in the tests where you saw it?

Now that I think about it, there have been similar transient failures
("read only 0 of 8192 bytes") in the buildfarm before.  It would be
helpful to collect a list of exactly which build reports contain
that string, but AFAIK there's no very easy way to do that; Andrew,
any suggestions?
        regards, tom lane