[Numpy-discussion] FYI -- numpy.linalg.lstsq as distributed by Ubuntu is crashing on some inputs

Pauli Virtanen pav at iki.fi
Fri May 6 06:04:05 EDT 2011

Thu, 05 May 2011 17:41:35 -0700, Nathaniel Smith wrote:
> Probably just another standard "your BLAS is compiled wrong!" bug, but
> in this case I'm seeing it with the stock versions of ATLAS, numpy, etc.
> included in the latest Ubuntu release (11.04 Natty Narwhal):
>   https://bugs.launchpad.net/ubuntu/+source/atlas/+bug/778217
> So I thought people might like a heads up in case they run into it as
> well.

It's terminating with SIGILL, which means that Ubuntu no longer ships
a precompiled version of Atlas usable on machines without SSE3.

Pauli Virtanen

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