XSPRESS3 hdf5 problems

[John Dobbins via Tech-talk <tech-talk@aps.anl.gov>]

All,

I have a new 5 channel Quantum Xspress3 data readout unit which when taking multiple frames will start generating hdf5 related error messages at what seems like random (will acquire between a few or thousands of frames before generating errors).  Once these messages start they seem to continue until the IOC segfaults. 

repeating pair of error messages on the IOC console:

 HDF5-DIAG: Error detected in HDF5 (1.8.12) thread 0:

  #000: ../../src/H5Dio.c line 231 in H5Dwrite(): can't prepare for writing data

    major: Dataset

    minor: Write failed

  #001: ../../src/H5Dio.c line 348 in H5D__pre_write(): file selection+offset not within extent

    major: Dataspace

    minor: Out of range

This IOC is a binary that comes with the detector. 

I have contacted Quantum.  I thought that while waiting to hear from them it would make sense to build an IOC from source. On github I see

epics-modules/xspress3

and

quantumdetectors/xspress3-epics  forked from the above.

Any advice on which i should go with? Any suspicions regarding the hdf5 errors?

Thanks,

John Dobbins

Research Support Specialist

Cornell High Energy Synchrotron Source

Cornell University

www.chess.cornell.edu