ORA Database Error Messages ORA-09769: osnmbr: cannot send break message July 24, 2015 mpbod ORA-09769: osnmbr: cannot send break message Cause: The Mach driver could not send a break message to the ORACLE shadow process break thread. Action: Internal error. Contact your customer support representative. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)