"Pavel Stehule" <pavel.stehule@hotmail.com> writes:
> I don't see any important difference, why 8.1. have to down.
I dunno, but gdb is doing you no favors with such a silly backtrace.
It sorta looks like you have some files built with -g and some without
... or perhaps you are trying to gdb the core file against the wrong
executable?
regards, tom lane