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[Monotone-devel] Re: Re: Re: Re: Re: monotone on alpha, possibly only De


From: Pavel Cahyna
Subject: [Monotone-devel] Re: Re: Re: Re: Re: monotone on alpha, possibly only Debian (was Re: ikiwiki monotone support)
Date: Fri, 18 Jan 2008 00:10:10 +0100
User-agent: mutt-ng/devel-r529 (NetBSD)

On Thu, Jan 17, 2008 at 05:54:06PM -0500, Jack Lloyd wrote:
> On Thu, Jan 17, 2008 at 11:42:53PM +0100, Pavel Cahyna wrote:
> 
> > It compiles; ./check output is attached. I interrupted it after 7 minutes
> > when it did not seem to make any progress.
> 
> If division/modulo is broken as badly as the tests suggest, it's
> highly likely that one of the power_mod algorithms had gone into an
> infinte loop. In particular it looks like it is possible with this bug
> for a % n > n -- that is going to cause problems.
> 
> The most likely files to be miscompiled that would break things in
> this way are mp_misc.cpp, divide.cpp, then the other mp_* files, then
> the big_* files (in order of likelyhood).

I compiled mp_misc.cpp with -O0, relinked with the rest and all test now
pass.

Have a look at
http://colabti.de/irclogger/irclogger_log/monotone?date=2007-06-15,Fri#l165
too, there is a talk about other compilers mis-optimising botan.

Pavel




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