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Creating and initializing Oracle on Linux - Documentation for TrueSight Middleware and Transaction Monitor 8.1
Note
Oracle 11g and 12c include a feature to catch runtime errors in user code. This feature intercepts process signals, then creates diagnostic information in the user's home directory. This feature is on by default. BMC recommends that it be turned off. Consult your Oracle documentation for information about Controlling ADR Creation and Disabling Fault Diagnosability Using sqlnet.ora.