Jeremiah Jahn <jeremiah(at)goodinassociates(dot)com> writes:
> I have multiple instances of the server running on different ports.
> 5432-5438 and adding more all the time. They all seem to have gotten
> corrupted somehow.
Hmm. A dropped bit in one of the executable files maybe? Hard to see
what else would affect several instances simultaneously. Try
reinstalling the executable files, and also the libraries they depend
on (libz is clearly something to suspect here).
regards, tom lane