Segmentation Faults on Mac OS X Lion

From: Arvind Kannan (
Date: Mon Jul 25 2011 - 16:48:21 CDT

Hello all,

I recently upgraded my Mac OS from 10.6 to 10.7, and namd no longer runs without crashing. Any call to namd2 results in an instant segfault with no generated output. The problem occurs regardless of the number of cores used in the run, and namd is the only process that segfaults on the new OS for me. Are there any known workarounds to this problem, or is the current version of namd simply incompatible with Lion?

Arvind Kannan
California Institute of Technology

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