CBR7102I General purpose registers at time of error:

Explanation
 An abnormal end has occurred in one of the OAM
tasks. The general purpose registers at the time of the error are
displayed in the following four messages: CBR7103I, CBR7104I, CBR7105I
and CBR7106I. This message only appears if a system diagnostic work
area (SDWA) was provided by the MVS™ recovery
termination manager (RTM) to the ESTAI recovery routine.

System action
 See description for message CBR7100I.

Operator response
 Notify the system programmer.

System programmer response
 For information on normal and abnormal
program end see z/OS MVS Programming: Authorized Assembler Services Guide. 

Source
 Object Access Method (OAM)

Routing Code
 10

Descriptor Code
 4