Octave 4.0.0-3 x86_64 segfault (suspect openblas)

[Tony Kelman]

The following works fine on 32 bit, but segfaults reliably on 64 bit:

$ octave
octave: X11 DISPLAY environment variable not set
octave: disabling GUI features
GNU Octave, version 4.0.0
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octave:1> D = 1000*(rand(1000,1000)-0.5);
octave:2> [E,F] = eig(D)
panic: Segmentation fault -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
Segmentation fault (core dumped)


I see the same when I call a mingw-w64 build of openblas 0.2.15 through 
Julia (which isn't packaged in Cygwin but shares many common dependencies 
with Octave), so this is mostly to let Marco know about the issue. I'll have 
to reduce this to the corresponding Lapack call and come up with a 
standalone C or Fortran test case to report upstream. My processor is a 
Sandy Bridge i7-2630QM.

-Tony
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