regress error in start up

Dear sirs

I have finished compile(no error) and install(OK), but
following error messages in regression stage.
I can't understand it, please let me any suggest.

[dbmaster(at)ws11 dbmaster]$ more regress.log
IpcMemoryCreate: shmget failed (Identifier removed) key=5432010,
size=24588, permission=700
IpcMemoryIdGet: shmget failed (Identifier removed) key=5432010,
size=24588, permission=0
IpcMemoryAttach: shmat failed (Invalid argument) id=-2
FATAL 1: AttachSLockMemory: could not attach segment

[dbmaster(at)ws11 dbmaster]$ more /usr/local/pgsql/data/PG_VERION : 6.4
OS:TurboLinux 3.0J(Linux 2.0.36)
Hardware:Pentium II, 128MB main memory, 1.5GBHDD for Linux(68% in use)

The environments and install directories are as follows;
[dbmaster(at)ws11 dbmaster]$ more .bash_profile
#
# login setting for sh family
# (C)PacificHiTech 1998.9.9
#

if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi

# User specific environment and startup programs

ENV=$HOME/.bashrc
USERNAME=""
PATH=$PATH:/usr/local/pgsql/bin
MANPATH=$$MANPATH:/usr/local/pgsql/man
PGLIB=/usr/local/pgsql/lib
PGDATA=/usr/local/pgsql/data

export USERNAME ENV PATH MANPATH PGLIB PGDATA

[dbmaster(at)ws11 dbmaster]$ ls -l /usr/src/pgsql
total 133
-rw-r--r-- 1 dbmaster nok 1111 May 10 1997 COPYRIGHT
drwxr-xr-x 2 dbmaster nok 1024 Jan 3 19:36 CVS/
-rw-r--r-- 1 dbmaster nok 52509 Jan 3 19:35 HISTORY
-rw-r--r-- 1 dbmaster nok 71071 Dec 28 21:06 INSTALL
-rw-r--r-- 1 dbmaster nok 1921 Dec 28 21:06 README
drwxr-xr-x 23 dbmaster nok 1024 Dec 30 22:25 contrib/
drwxr-xr-x 4 dbmaster nok 1024 May 7 01:47 doc/
-rw-r--r-- 1 dbmaster nok 684 Dec 28 21:06 register.txt
drwxr-xr-x 17 dbmaster nok 1024 Jun 6 22:30 src/

[dbmaster(at)ws11 dbmaster]$ ls -l /usr/local/pgsql/
total 4
drwxr-xr-x 2 dbmaster nok 1024 Jun 7 00:37 bin/
drwx------ 3 dbmaster nok 1024 Jun 8 22:47 data/
drwxr-xr-x 10 dbmaster nok 1024 Jun 6 22:32 include/
drwxr-xr-x 2 dbmaster nok 1024 Jun 6 22:32 lib/
[dbmaster(at)ws11 dbmaster]$ ls -l /usr/local/pgsql/data
total 44
-rw------- 1 dbmaster nok 4 Jun 6 23:20 PG_VERSION
drwx------ 4 dbmaster nok 1024 Jun 8 20:59 base/
-rw------- 1 dbmaster nok 8192 Jun 8 21:02 pg_database
-r-------- 1 dbmaster nok 2838 Jun 6 23:20 pg_geqo.sample
-rw------- 1 dbmaster nok 0 Jun 6 23:20 pg_group
-rw------- 1 dbmaster nok 5414 Jun 8 22:47 pg_hba.conf
-rw------- 1 dbmaster nok 8192 Jun 8 21:04 pg_log
-rw-rw-rw- 1 dbmaster nok 53 Jun 6 23:20 pg_pwd
-rw------- 1 dbmaster nok 8192 Jun 6 23:20 pg_shadow
-rw------- 1 dbmaster nok 8192 Jun 8 21:04 pg_variable

[dbmaster(at)ws11 dbmaster]$ more /usr/local/pgsql/data/pg_hba.conf
#
host all 150.26.36.0 255.255.255.0 trust
#
(Our organization's IPs are : 150.26.36.x)

[dbmaster(at)ws11 dbmaster]$ export TZ=PST8PDT
[dbmaster(at)ws11 dbmaster]$ nohup postmaster > regress.log 2>&1 &
[1] 1617
[dbmaster(at)ws11 dbmaster]$ ll
total 5
-rw-r--r-- 1 dbmaster nok 48 Jun 6 22:09 make.log
-rw------- 1 dbmaster nok 290 Jun 8 21:39 nohup.out
drwx------ 2 dbmaster nok 1024 Jun 6 22:28 nsmail/
-rw-r--r-- 1 dbmaster nok 290 Jun 8 21:49 regress.log
-rw-r--r-- 1 dbmaster nok 194 Jun 8 21:30 server.log
[1]+ Done nohup postmaster >regress.log 2>&1

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M.Suzuki : affrc : Email : msuzuki(at)inada(dot)affrc(dot)go(dot)jp
Tel : +81-255-26-3214
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