Re: pre-existing shared memory block

"Ed L." <pgsql@bluepolka.net> writes:
> FATAL:  pre-existing shared memory block (key 9812001, ID 655374)
> is still in use

> However, ipcs shows there is no shared memory block in use:

What platform is that?

Perhaps you need some non-default switches to ipcs to see all memory
segments?  Otherwise, it seems that either your kernel or ipcs is broken.

            regards, tom lane