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I have a Intel Xeon Mac Pro running OSX 10.5.7 and IRAF 2.14.1. I am trying to do something very standard -- that is, run ccdproc on a list of images to overscan subtract and trim. So, my input file is @fits.list and my output file is @proc.list, and only overscan and trim are set to "yes" with appropriate sections specified.After some number of files that varies (from three to a few more), IRAF ceases processing files (that is, I get the first few output files and the no more) and hangs. No prompt or error message is returned. Within seconds, I can no longer do anything on my computer, and I mean anything. No commands at the command line work, not ps, not kill, not anything. And the Finder is hung as well. All I can do is use the power button to shut off the whole computer.The exact same files are processing just fine on my laptop, which is still running IRAF 2.12.2a.Any suggestions would be most welcome! Thanks.

I havent' got a system to test this on, but you might see an earlier report of a similar problem athttps://iraf.net/phpBB2/viewtopic.php?t=87313It could indeed be a hardware problem of some kind, e.g. a bad memory chip, but if the data are mounted from a remote disk it might also be a network issue. Are these exceptionally large images? Can you process one at a time or identify that every Nth image reliably causes the problem (a painful exercise to determine I know)? After reboot, do the crash logs show any useful information?-Mike