Bug#680096: libblas3: Shared library for BLAS level3 (dgemm) is broken on WHEEZY/powerpc

Sébastien Villemot sebastien.villemot at ens.fr
Tue Jul 3 14:36:44 UTC 2012


reassign 680096 libatlas3-base
tags 680096 + moreinfo
thanks

Dima Sorkin <dima at minignu.minidns.net> writes:

> $ ./try_dgemm
[...]
> Program received signal SIGILL, Illegal instruction.
> 0x0fc7f55c in ATL_dptgemm_nt () from /usr/lib/libblas.so.3

The crash actually occurs in Atlas (package libatlas3-base), not in
RefBLAS (package libblas3). Please check that the crash disappears if
you select RefBLAS using the alternative system:

# update-alternatives --config libblas.so.3

In order to investigate this bug, I would like you to do two other
things:

- dump the contents of your /proc/cpuinfo

- recompile locally an Atlas package (as documented in README.Debian of
  libatlas3-base), and check whether the resulting package still
  exhibits the bug (don't forget to make sure that the BLAS alternative
  points to Altas before making the test)

Thanks,

-- 
Sébastien Villemot
Researcher in Economics & Debian Maintainer
http://www.dynare.org/sebastien
Phone: +33-1-40-77-84-04 - GPG Key: 4096R/381A7594
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