psql-mail(at)freeuk(dot)com writes:
> How do i get the core files to examine? There never seem to be any
> produced, even outside the debuggers.
Most likely you have launched the postmaster under "ulimit -c 0", which
prevents core dumps. This seems to be the default state in recent Linux
releases, for reasons I cannot fathom :-(. I put "ulimit -c unlimited"
into the postmaster launch script whenever I am working on Linux.
regards, tom lane