problem with installing postgresql

hai...
i have some problem with installing postgresql.
Following is the output of installation:
--------------------------------------------------------------------------

[praveen(at)babbage pgsql]$ initdb -D /usr/local/pgsql/Data/
The files belonging to this database system will be owned by user
"praveen".
This user must also own the server process.

The database cluster will be initialized with locale en_US.UTF-8.
The default database encoding has accordingly been set to UTF8.

fixing permissions on existing directory /usr/local/pgsql/Data ... ok
creating directory /usr/local/pgsql/Data/global ... ok
creating directory /usr/local/pgsql/Data/pg_xlog ... ok
creating directory /usr/local/pgsql/Data/pg_xlog/archive_status ... ok
creating directory /usr/local/pgsql/Data/pg_clog ... ok
creating directory /usr/local/pgsql/Data/pg_subtrans ... ok
creating directory /usr/local/pgsql/Data/pg_twophase ... ok
creating directory /usr/local/pgsql/Data/pg_multixact/members ... ok
creating directory /usr/local/pgsql/Data/pg_multixact/offsets ... ok
creating directory /usr/local/pgsql/Data/base ... ok
creating directory /usr/local/pgsql/Data/base/1 ... ok
creating directory /usr/local/pgsql/Data/pg_tblspc ... ok
selecting default max_connections ... 100
selecting default shared_buffers/max_fsm_pages ... 3500/175000
creating configuration files ... ok
creating template1 database in /usr/local/pgsql/Data/base/1 ... child
process was terminated by signal 11
initdb: removing contents of data directory "/usr/local/pgsql/Data"
-----------------------------------------------------------------------------

I have installed it with user name praveen.Earlier i installed
succesfully.but this time I am getting the above output and didnt get any
solution for this problem on net.so could you please tell me the solution
for it.

thanks in anticipation.

regards,
--
N Praveen Kumar

Imagination is more important than knowledge...
--Albert Einstein