The following bug has been logged online:
Bug reference: 2967
Logged by: Mika Vimpari
Email address: dj02(at)dj02(dot)net
PostgreSQL version: 8.2.1
Operating system: Windows XP Pro, SP 2, Fin, 5.1.2600
Description: BUG #2881: FATAL: could not reattach to shared memory
(Win32)
Details:
I checked release notes of v8.2.1 and still the bug:
http://archives.postgresql.org/pgsql-bugs/2007-01/msg00043.php
isn't fixed.
I've seen that when after computer restart i stop and start the postgresql
service again the problem doesn't appear anymore before next computer
restart.