Re: BUG #4892: postmaster died and didn't restart

"Rikard Pavelic" <rikard.pavelic@zg.htnet.hr> writes:
> %t FATAL:  could not create shared memory segment: 1455
> %t DETAIL:  Failed system call was CreateFileMapping(size=37044224,
> name=Global/PostgreSQL:C:/Program Files/PostgreSQL/8.4/data).

I know little about Windows, but according to Google code 1455 is
"ERROR_COMMITMENT_LIMIT: The paging file is too small for this operation
to complete".  Which seems to be an out-of-memory kind of problem.
Perhaps you've got shared_buffers set to an unreasonably high value
for your machine?

            regards, tom lane