postgreSQL 7.3.3 crashing on server with Itanium processor...

Hi All ,

H/W Configuration - Dell 7150 Quad Itanium 1 ( 733 MHz) with 4G RAM

OS - Red Hat 7.2
- Postgresql ver 7.3.3 compiled from raw hide red hat rpms.

Problem : We were able to install postgreSQL 7.3.3 successfully on this enviornment , but server crashes randomly and throws following error :
*************************************************************************************
LOG: server process (pid 11220) was terminated by signal 11
LOG: terminating any other active server processes
LOG: all server processes terminated; reinitializing shared memory and semaphores
LOG: database system was interrupted at 2003-06-17 10:29:08 PDT
LOG: checkpoint record is at 0/83CEC8
LOG: redo record is at 0/83CEC8; undo record is at 0/0; shutdown TRUE
LOG: next transaction id: 480; next oid: 16976
LOG: database system was not properly shut down; automatic recovery in progress
LOG: ReadRecord: record with zero length at 0/83CF10
LOG: redo is not required
LOG: database system is ready
FATAL: Database "template0" is not currently accepting connections
FATAL: IDENT authentication failed for user "zippool1"
LOG: fast shutdown request
LOG: shutting down
LOG: database system is shut down
***********************************************************************************************

Any help would be highly appreciated !

Thanks in Advance !

Regards