The most common reason of Signal 11 :
If you FTP a report file (RDF) developed on client using Reports 2.5 without setting BINARY mode to UNIX server.

Problem with Running Bit Map Reports (Formatter Error)

Do the following steps :
 1.  While registering the report set program options to
     VERSION=2.0b.
 2.  Add the following line at the end of
     $ORACLE_HOME/guicommon2/tk23/admin/uiprint.txt file:

     ljcrp1:PostScript:1:The default printer if $PRINTER is not set:default.ppd:

PS: Change ljcrp1 with your network printer name.

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