ORA-09939: Restoration of signal handlers failed.

ORA-09939
ORA-09939: Restoration of signal handlers failed.
Cause: ORACLE was unable to restore the previous values of selected signal
handlers.
Action: This is an internal error. Contact ORACLE support.
More details : Viste http://www.high-oracle.com/ora-09939/
More details : Viste http://www.high-oracle.com/ora-09939/
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Your source for help on all Oracle database error codes :
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Error Oracle : ora-36672 http://www.high-oracle.com/ora-36672/
Error Oracle : ora-28291 http://www.high-oracle.com/ora-28291/
Error Oracle : ora-28559 http://www.high-oracle.com/ora-28559/
Error Oracle : ora-22851 http://www.high-oracle.com/ora-22851/
Error Oracle : ora-31615 http://www.high-oracle.com/ora-31615/
Error Oracle : ora-13050 http://www.high-oracle.com/ora-13050/
Error Oracle : ora-08209 http://www.high-oracle.com/ora-08209/
Error Oracle : ora-32403 http://www.high-oracle.com/ora-32403/
Error Oracle : ora-01286 http://www.high-oracle.com/ora-01286/
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Error Oracle : ora-40001 http://www.high-oracle.com/ora-40001/
Error Oracle : ora-29394 http://www.high-oracle.com/ora-29394/
Error Oracle : ora-16119 http://www.high-oracle.com/ora-16119/
Error Oracle : ora-15101 http://www.high-oracle.com/ora-15101/
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