Re: [HACKERS] Core dump in regression tests.

From: "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
To: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
Cc: emkxp01(at)mtcc(dot)demon(dot)co(dot)uk, szybist(at)boxhill(dot)com, hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] Core dump in regression tests.
Date: 1998-09-01 16:55:05
Message-ID: 35EC26E9.15E93657@alumni.caltech.edu
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> Can we try a simple -O rather than just -O2 and -O0. Could this be
> some type of optimizer bug in gcc2/Solaris?
> Everything is pointing to indexing.c, from both the initdb failure and
> the create function failure. But I can't see anything wrong in there,
> and other platforms seem to be OK.

Uh, no, Linux/i686 is showing trouble too, but not in the initdb stage.
The Sparc platforms will be more sensitive to byte alignment problems,
especially within C structures, so this may be illustrating a
cross-platform problem more clearly.

There is a repeatable indexing and (perhaps) caching problem I see in
the regression tests. Annoyingly, the problems get slightly worse at the
moment when compiling with -O0.

There is a fundamental problem lurking somewhere, and there may not be
much point in going beta unless you think that more testers will help to
track down the problem.

- Tom

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