Original ticket http://projects.scipy.org/numpy/ticket/497 on 2007-04-10 by @charris, assigned to unknown.

The problem is easy to exhibit:

In [2]: dot(eye(1000),eye(1000))
Illegal instruction

The products work for smaller arrays, so I suspect either the output array or a work array is being created with the wrong size, probably a 64bit integer thing in the cblas interface. The example works on 32 bit linux.

This ticket replaces #1030