futex lockup?

From: Rob Newton <robn(at)mirrabooka(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: futex lockup?
Date: 2006-02-08 06:22:30
Message-ID: 43E98E26.4000000@mirrabooka.com
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Hi,

I wrote a program using pgsql's ESQL/C. Occasionally it blocks
forever on a system call futex(), and I'm wondering if pgsql's
libraries use this futex call?? (because my code doesn't use it).

Because the problem only occurs occasionally I can't really trace
it while it's running. But when I discover it's locked up, and
then do a trace, I get the following:

Process 19893 attached - interrupt to quit
futex(0x238f20, FUTEX_WAIT, 2, NULL

I'm using psql 8.0.3 on Linux FC4 (kernel 2.6.11-1).

Thankyou,
Rob Newton

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