I am getting error from clients ora - 12500 and on server mprotect error fatal and it is showing the file in this directory
$ORACLE_HOME/lib/libjox8.so. Resource on available
Even I tried to reload the oracle8i but I couldn't rectify it.

O.S is := Sun Solaris8(pentium III,256 mb ram & 20 gb hdd)
Oracle database is := oracle 8.1.5
clients are 40 and it is development database

Please get me the solution it is urgent.