I am attempting to produce files of 100 events of approximately 250kB per event. When I test it on small events (a couple of particles per event for a handful of events), all is well and the read-back structures appear perfect. When I run on the bigger events on AIX, I get an 'illegal instruction' abort, apparently in tree->fill(). My tree consists of 5 branches: 4 TClonesArrays and 1 TMap. The TMap 'value' objects themselves contain a TMap*. One of the TClonesArrays is of MC particles. The other TClonesArrays objects contain pointers to those MC particles. The TMaps contained in the top TMap also contain pointers to the MC particles. split=0; bufsize=512000. The crashes appear to be history-dependent: if I excise a failing event and run it by itself, all is well. I am wondering about event cleanup. I do ->Delete's on all the TClonesArrays and the top TMap (not DeleteAll on the TMap - there are many complaints about already removed objects if I do(?)) after each tree->Fill(). All of the objects contained are created on the heap. I don't do any other cleanup nor have I done anything special for destructors for the contained objects. Should I be doing anything differently for cleanup or in setup of the root file? Of course, I could simply have a bug in the code! Thanks, Richard -- Richard Dubois SLD, Stanford Linear Accelerator Center Richard@slac.stanford.edu http://www.slac.stanford.edu/~richard/ 650-926-3824 650-926-2923 (FAX)
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