During global resource serialization processing, a task critical to global resource serialization processing ended due to an abnormal condition. Global resource serialization attempted to reinstate the task, it was not able to do so because the ATTACH for the task module modname failed with a return code of RC=rc.
The system enters a non-restartable X'0A3' wait state.
Notify your system programmer.
Use the return code identified in the message to determine the cause of the ATTACH error and correct the problem. If the return code is not sufficient to determine the cause of the error, have the operator take a stand-alone dump for further problem analysis. See z/OS MVS Programming: Authorized Assembler Services Reference EDT-IXG, or z/OS MVS Programming: Sysplex Services Reference.
Global resource serialization
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