I'm using midas to read data from a waveform digitizer at event rates of
10-30kHz. To accomplish this the digitizer is read via Block transfers and the
raw data put into a single MIDAS event. Thus a MIDAS event could contain upto
250 physical events and at maximum 350kBytes. In the analyzer modules I had
been analyzing the first physics event contained in a MIDAS event with no
problem. Recently I tried to analyze all the physical events. At low rates,
100hz-1khz, this was no problem, 1-5 physical events in a MIDAS event. At
higher rates 10-20kHz, where there are about 40physical events per MIDAS event,
the analyzer keeps up for a few seconds then seg faults with " 'shared object
read from target memory' has disappear; keeping it symbols". Any suggestions as
to why the analyzer is crashing would be very helpful.
Thanks,
Robert |