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Date: Tue, 08 Nov 2011 20:21:02 +0100
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: floating-point math after MMX
2011-11-08 20:04, Solar Designer wrote:
> I expect that
> 0022-j7-Fix-for-huge-figures-in-MPI-sum-avg-cps-64-bit-ov.patch and
> 0027-j7-Optionally-output-number-of-candidates-tried.patch would cause
> misreporting when running MMX-using builds (and formats for which MMX
> specifically is actually used) on certain CPUs. I previously observed
> this on Pentium 3, for which there's now a workaround in -jumbo's
> status.c: status_get_ETA() and status_get_totalETA(), but not in other
> functions. Basically, we only issue the EMMS instruction right before
> doing floating-point math.
>
> Is this something you can test for (on a P3) and patch now or should I?
I have no idea where to find a P3... I guess you get to do it.
magnum
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