I have this error when I started an oracle instance on Linux Suse 10
SQL*Plus: Release 10.2.0.4.0 - Production on Tue May 12 17:05:35 2009
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Connected to an idle instance.
SQL> startup pfile='/data/OPT/Init/init.ora'
ORA-03113: end-of-file on communication channel
ORA-00822: MMAN process terminated with error