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Date: Thu, 17 May 2012 19:36:08 +0800
From: myrice <qqlddg@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Myrice: Weekly Report #5
On Thu, May 17, 2012 at 8:29 AM, Solar Designer <solar@...nwall.com> wrote:
> By "violate", do you mean "volatile"?
Yes, I misspell this..
> Like Frank suggested, can you generate a simple testcase? Not only for
> posting to AMD forums, but also to let others on our team test it on
> other GPUs. From Samuele's test of your entire XSHA512 kernel, it is
> unclear whether the self-test failed for the same reason or maybe for
> another reason. A smaller testcase with some debugging output would
> make this clearer.
>
The bug is so strange. I have two printf(SWAP64(a)) before[1] the 80
loops and at the first line[2] inside the 80 loops of SHA512 and . The
[1] gave the right result. The [2] lost high 32bit with 0. I will try
to reproduce the bug.
Thanks
myrice
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