Dear OCaml-List, Thanks for replies to my previous email about a crashing Objective Caml program which simulates a next generation optical storage system that crashed due to an NFS error after 2 days of running. Special thanks to Gerd Stolpmann. In the mean time the program has computed for one and a half day more, ca. 3.5 days, and gives an index out of bound error, see below. =================================================================================================== BestDelayLeadingPitEdgeInPerc = 23.0, bestAsymmetryInPerc= 10.1 1-Track ScalarDiffr. for 38.8 rawGb with 6.1 pixels/bit and 83.3 bits/spot ................Fatal error: exception Invalid_argument("index out of bounds") =================================================================================================== This is better than a C++ program giving a segmentation fault, as one now knows the reason of the crash. Of course, I am very curious in which line number of the program this exception occurs. Is there any way to get hold of this line number? Best regards, =Andries ------------------------------------------------------------------------ Dr. Ir. Andries P. Hekstra Philips Research High Tech Campus 27 (WL-1-4.15) 5656 AG Eindhoven Tel./Fax/Secr. +31 40 27 42048/42566/44051 * Good open source break software for computer users : http://www.workrave.org