[Flac-dev] Re: Need AMD debugging help

Mike Wren mikew at etree.org
Wed Aug 14 14:27:03 PDT 2002


Great call, Jason.  The trouble may also be from overclocking their CPU's.
We ran into some similar bug reports in the Furthur project with people
swearing up and down that random application hangs and glitches was our
software (which in part it was).  However, as soon as they brought their
CPU's and video cards back to spec, their problems magically went away.

I would follow this one up with those people... like Jason said, FLAC is
very cpu intensive, and if overheating would occur, it would be during a
FLAC encode/decode/verify pass.


MW




On Wed, 14 Aug 2002, Jason Lunz wrote:

> xflac at yahoo.com said:
> > I have gotten a few similar bug reports about encoding
> > errors with FLAC.  The common features are:
> >
> > - Repeatedly encoding the same file with verify will have
> >   verify errors some of the time (looks like aroung 50%) and
> >   the verify errors will occur in different places each time.
> >
> > - This is happening on AMD PCs running Windows.  More reports
> >   come from Athlon systems but there has been one from a Duron.
> >   More reports come from win2k but there has been one from
> >   win98se and XP.
> >
> > - Some people are using only the win32 binary flac release but
> >   a couple have compiled from source, even under cygwin, with
> >   similar results (see links at the end).
>
> These attributes (especially their randomness) are all consistent with
> slight overheating or memory problems in the hardware. Overheating is
> common with AMD systems and will often only show up when doing something
> like FLAC encoding. If the problem is overheating, just opening up the
> case will often drop the system's temperature several degrees and make
> these kinds of problems go away. If it's slighly bad memory, then
> memtest86 will likely find it: http://www.memtest86.com/
>
> Jason
>
>
>
>
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