|Message: Re: Anaphe/AIDA w. Redhat 9.0||Not Logged In (login)|
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without a stack-trace this is hard to diagnose, but this looks to me as if your "tree" is going out of scope after creating/booking the histograms and therefore the histograms are deleted before the first fill call (which then causes the segv). To verify (and repair) this, could you please make sure that the pointer to the tree you are using is a memeber of a class which "lives" to the end of your simulation programme ? Examples for how to do this are in the advanced examples in Geant-4 ...
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