Bug#655586: libatlas3gf-base and "Illegal instruction"

[Stefano Lattarini]

Package: libatlas3gf-base
Version: 3.8.3-27
Severity: serious

-- System Information:
Debian Release: wheezy/sid
Architecture: i386 (i686)

Kernel: Linux 2.6.30-2-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libatlas3gf-base depends on:
ii  libc6                         2.13-21    Embedded GNU C Library: Shared lib
ii  libgcc1                       1:4.6.2-11 GCC support library
ii  libgfortran3                  4.6.2-11   Runtime library for GNU Fortran ap

libatlas3gf-base recommends no packages.

Versions of packages libatlas3gf-base suggests:
ii  libblas3gf                1.2.20110419-2 Basic Linear Algebra Reference imp
ii  liblapack3gf              3.3.1-1        library of linear algebra routines

-*-*-*-

Programs linked with libatlas3gf-base unexpectedly die with an
"Illegal instruction" signal:

  $ cat > foo.c <<'END'
  #include <atlas/cblas.h>
  int main (void)
  {
      static double a[2*2];
      static double b[2*2];
      static double c[2*2];
      double alpha = 1.0, beta = 0.0;
      cblas_dgemm (CblasRowMajor, CblasNoTrans, CblasNoTrans, 2, 2, 2,
                   alpha, a, 2, b, 2, beta, c, 2);
      return 0;
  }
  END
  $ gcc -lcblas foo.c
  $ ./a.out; echo status = $?
  Illegal instruction
  status = 132

-*-*-*-

JFTR, I tripped on the above issue while trying to install a hand-compiled
version of numpy; in fact, the problem is there also for the version of
numpy installed by the package manager:

  $ dpkg --status python-numpy
  Package: python-numpy
  ...
  Source: python-numpy (1:1.3.0-3)
  Version: 1:1.3.0-3+b2
  ...
  Homepage: http://numpy.scipy.org/
  Python-Version: 2.5, 2.6

  $ python -c 'import numpy; numpy.test()'; echo status = $?
  Running unit tests for numpy
  NumPy version 1.3.0
  NumPy is installed in /usr/lib/python2.6/dist-packages/numpy
  Python version 2.6.6 (r266:84292, Apr 20 2011, 11:58:30) [GCC 4.5.2]
  nose version 1.0.0
  Illegal instruction
  status = 132

-*-*-*-

Regards,
  Stefano