Re: Unhelpful debug tools on OS X :-(

Tom Lane wrote:
> Dunno if anyone's noticed, but buildfarm member jackal has been crashing
> intermittently in the "cluster" regression test.  I found out that I can
> reproduce that here on a Mac Mini (apparently the same or nearly same
> hardware/software as jackal) --- just repeat the parallel tests often
> enough, and it'll fail once in awhile.  I've got a core file but gdb
> is being no help at all:
> 
> mini:~/pgsql/src/test/regress tgl$ gdb /Users/tgl/testversion/bin/postmaster /cores/core.23609
> GNU gdb 6.3.50-20050815 (Apple version gdb-563) (Wed Jul 19 05:10:58 GMT 2006)
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i386-apple-darwin"...Reading symbols for shared libraries .. done
> 
> Core was generated by `/Users/tgl/testversion/bin/postmaster'.
> Core file contained no thread-specific data
> 
> (gdb) bt
> #0  0x00000000 in ?? ()
> (gdb)
> 
> Any suggestions how to extract some info out of this?

no idea on that one - but clownfish managed to fail the cluster test
once too lately:

http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=clownfish&dt=2007-04-09%2023:03:03


Stefan