Tom,
Could it possibly be this?:
http://postgresql.1045698.n5.nabble.com/BUG-5731-postmaster-sometimes-dumps-core-when-handling-local-connections-td3239029.html
Sam
-----Original Message-----
From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
Sent: Friday, 10 December 2010 2:17 PM
To: Samuel Stearns
Cc: Shoaib Mir; pgsql-admin@postgresql.org
Subject: Re: [ADMIN] Postgres Crash
Samuel Stearns <SStearns@internode.com.au> writes:
> Tom, no useful messages in the log prior. I do have a 47M core dump. What should I do with that?
If you use gdb, try
$ gdb /path/to/postmaster /path/to/corefile
gdb> bt
... useful info here ...
gdb> quit
I think the preferred debugger on Solaris might not be gdb, but if so
you'll need to consult its docs to find out how to get a stack trace.
regards, tom lane