Maxime Zakharov <maxime(at)sochi(dot)net(dot)ru> writes:
> I have a problem restarting postgres 8.1.3 running on FreeBSD 5.4 after
> a crash. Just after start, postgresql core down, backtrace is following:
> Core was generated by `postgres'.
> Program terminated with signal 4, Illegal instruction.
At a guess, you have a corrupted postgres executable file. Try
reinstalling the software.
regards, tom lane