Thank you. In fact, the crash does not always happen when matrix size >= 10x10. Exactly, in my situation, for the 82x82 matrix "a" in the attach file "a.txt", it will crash. And I also have tried "for n=1:82 inv(a(1:n,1:n)); end", it will crash when n = 43. So, would you please have a try of the attach data file "a.txt" with the following script? > load a.txt > inv(a) ------------------ Original ------------------ From: "Rafael Laboissiere"<rafael@laboissiere.net>; Date: Mon, Aug 3, 2015 03:40 PM To: "Wang S"<wangshuo@inhand.com.cn>; "794443"<794443@bugs.debian.org>; Subject: Re: [Pkg-octave-devel] Bug#794443: octave: should not recommendlibopenblas-base Control: fixed -1 4.0.0-3 * Wang S <wangshuo@inhand.com.cn> [2015-08-03 14:39]: > Package: octave > Version: 3.8.2-4 > Severity: normal > > Octave crashes when inverting matrices sized 10x10 or bigger > if libopenblas-base is installed. > And after I remove libopenblas-base, octave does not crash. > > Additional info: GNU Octave bug #45651 > http://savannah.gnu.org/bugs/?45651#comment4 I cannot reproduce this bug in Octave 4.0: $ dpkg -l libopenblas-base | grep ^ii ii libopenblas-base 0.2.14-1 i386 Optimized BLAS (linear algebra) library (shared library) $ octave-cli --version | grep version GNU Octave, version 4.0.0 $ echo 'inv(randn(12)); printf("Got here\n")' | octave-cli -q Got here I am hereby marking this bug as fixed in version 4.0.0-3. Should we actually close it? Rafael
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a.txt
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