I've run across a bug in pg_hba.conf routines which is repeatable in both 32bit intel on Linux and 64bit AMD on FreeBSD with both 7.4.5 and 7.4.6. It results in the postmaster crashing which is quite annoying when it leaves behind it's children.
create a file dev.users within the data directory such as the attached. Edit pg_hba.conf to have a line like: host db @dev.users 127.0.0.1 255.255.255.255 trust Hup the postmaster,. --
anatoly astrope chris dragos geantap kishore rbt
---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster