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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Samuel Stearns <SStearns@internode.com.au>
Cc: Shoaib Mir <shoaibmir@gmail.com>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: Postgres Crash
Date: Thu, 09 Dec 2010 23:21:18 -0500
Message-ID: <13889.1291954878@sss.pgh.pa.us> (raw)
In-Reply-To: <68B59BEDCD36854AADBDF17E91B2937A07844CD04A@EXCHMAIL.staff.internode.com.au>
References: <68B59BEDCD36854AADBDF17E91B2937A07844CD029@EXCHMAIL.staff.internode.com.au>
	<AANLkTikYRT15R61-ZByCzs_PoMT50JHbQFWeymeYjtjn@mail.gmail.com>
	<68B59BEDCD36854AADBDF17E91B2937A07844CD02E@EXCHMAIL.staff.internode.com.au>
	<13055.1291952802@sss.pgh.pa.us>
	<68B59BEDCD36854AADBDF17E91B2937A07844CD04A@EXCHMAIL.staff.internode.com.au>

Samuel Stearns <SStearns@internode.com.au> writes:
>  [root@udrv] # pstack /root/core 
> core '/root/core' of 771:       /opt/postgres/8.3-community/bin/postmaster -F
>  081a8562 ConnCreate (5) + b6
>  081a791b ServerLoop (8047e68, 83b7930, 2, fead58be, 8047e68, 83c28b8) + db
>  081a73f1 PostmasterMain (2, 83b7930) + ab5
>  08164e3a main     (2, 8047e44, 8047e50) + 17a
>  080891fa _start   (2, 8047ed0, 8047efb, 0, 8047efe, 8047f2e) + 7a

Hmmm ... does your build have GSS enabled (configure --with-gssapi)?
If so I think you ran into this recently-discovered issue:
http://archives.postgresql.org/pgsql-committers/2010-10/msg00253.php

I had originally thought that your log message about
setsockopt(TCP_NODELAY) failed: Invalid argument
was post-crash, but if it was pre-crash it supports that theory,
because that error would in fact lead to the core dump in ConnCreate
if you had ENABLE_GSS on.

In any case that log message is pretty odd: it's not at all clear how
the setsockopt call could have failed.  Failure to establish a socket
should bail out earlier.

			regards, tom lane



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