There is a job with IMS call, which is failing with above user abend.
It throws the error as in BMC utility. The description is 'BMC UTILITY DRIVER ABENDED. ABEND CODE IS U3923'
It is error indicates an expansion error. May be your database is a compressed one and it is using BMC data packer utility to uncompress the segment.
Please refer the preceding BMCxxxx error message for further information.
