Re: [HACKERS] SIGSEGV in 'select * from pg_user'

From: "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
To: t-ishii(at)sra(dot)co(dot)jp, Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>, Jeroen van Vianen <jeroenv(at)design(dot)nl>, pgsql-hackers(at)hub(dot)org
Subject: Re: [HACKERS] SIGSEGV in 'select * from pg_user'
Date: 1998-09-07 16:47:24
Message-ID: 35F40E1C.7201871D@alumni.caltech.edu
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> I see the same behavior, with a simple "select * from pg_user" enough
> to crash the backend

The segfault is coming from a call to free() after the command has
executed and while the "CommitTransactionCommand" phase is running.
Putting the query inside a begin/end block does not help. Presumably
there is a bad pointer or something getting free'd twice.

Any ideas?

- Tom

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