Re: PS2 mouse going nuts during cdparanoia session.

From: Vojtech Pavlik (vojtech@suse.cz)
Date: Wed Jul 16 2003 - 18:47:11 EST


On Thu, Jul 17, 2003 at 12:31:24AM +0100, Dave Jones wrote:
> On Wed, Jul 16, 2003 at 10:53:19PM +0200, Vojtech Pavlik wrote:
> > > > Dave, can you please enable the DEBUG in i8042.c so that I can see
> > > > whether the bytes really get lost or if the unsync check is just
> > > > triggering by mistake?
> > >
> > > Intriguing. With DEBUG enabled, I get a few gig of logs, but
> > > I can't trigger the dancing mouse pointer any more. With it
> > > disabled, I can reproduce it within a minute or two.
> > >
> > > Seems to be a timing related bug.
> >
> > Ouch.
>
> Finally managed to recreate it.
> http://www.codemonkey.org.uk/cruft/dancingmouse.txt
>
> >From 00:01:33 to 00:01:40 the box was having a fit.
> Then things returned to normal.

Thanks! This is very interesting. Most likely the problem started with
the "aux, 0" byte ...

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR
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