Hello everyone, I am still having trouble making ntuples. The details are about the same as before: Test release: ~penguin/vubrecoil/vub30 Edits: VubXlnu.cc edited to keep events even if they don't have a best lepton Record of which jobs failed/succeeded: workdir/ck3.txt CPU times for failed jobs: workdir/cputimes.txt Error message for failed jobs is always something very similar to: /nfs/farm/lsb_spool/1139883549.791383: line 8: 1222 Aborted VubRecoilUserApp VubXlnu.tcl SP-1235-BSemiExcl-R18b-2 MC I ran started a gdb session for one of the jobs. It took a few hours before it finally crashed. You can read what happened in: ~penguin/vubrecoi/vub30/workdir/gdb.txt What confuses me is that a lot of the jobs ran OK. If it was a problem with the code, I would have thought all the jobs would crash. I'm convinced it's not CPU time (see workdir/cputimes.txt). I am not sure if it could be one of those "memory leaks" because I don't understand them very well. I will look into that. But in the meantime, any help/suggestions are welcome. Thanks, sheila