The bug appears to have been caused by no tuning values being set on 32 bit
machines. Apparently we didn't have any users with 32 bit Linux when we
asked for tuning values a couple of years back, so none have been set for
x86/nehalem for example.

The bug goes away if they are set.

Bill.

On 12 September 2015 at 16:10, Bill Hart <goodwillh...@googlemail.com>
wrote:

> Hi Brian (and others),
>
> is it possible to reproduce this bug on Windows 32?
>
> I don't have access to a 32 bit machine at the moment and I'm working
> night and day on a big software release, so just can look into this bug for
> about 2 weeks.
>
> Can anyone else see what's going wrong? It should be in the basecase range.
>
> http://trac.sagemath.org/ticket/18546#comment:21
>
> I'd have thought that code was pretty bulletproof...
>
> Bill.
>

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