Re: 2.6.13-rc3 -> sluggish PS2 keyboard (was Re: [patch] Real-Time Preemption, -RT-2.6.13-rc4-V0.7.52-01)

Dmitry Torokhov
2005-08-02T15:59:25Z

On 8/2/05, Lee Revell <rlrevell@joe-job.com> wrote:
> On Tue, 2005-08-02 at 10:20 -0400, Steven Rostedt wrote:
> > On Tue, 2005-08-02 at 10:05 -0400, Lee Revell wrote:
> > > On Tue, 2005-08-02 at 09:56 -0400, Steven Rostedt wrote:
> > > > On Mon, 2005-08-01 at 00:45 -0400, Lee Revell wrote:
> > > > > On Sun, 2005-07-31 at 08:38 +0200, Ingo Molnar wrote:
> > > > > > ok - i've uploaded the -52-04 patch, does that fix it for you?
> > > > >
> > > > > Has anyone found their PS2 keyboard rather sluggish with this kernel?
> > > > > I'm not sure whether it's an -RT problem, I'll have to try rc4.
> > > >
> > > > I've just noticed this now. While I have lots of ssh sessions running,
> > > > my keyboard does get really sluggish. This hasn't happened before. I'm
> > > > currently running 2.6.13-rc3 with no RT. So this may definitely be a
> > > > mainline issue.
> > >
> > > I'm on a slower machine, and I seem to get this behavior regardless of
> > > load. Probably just running X+Gnome on this box is enough.
> > >
> > Also, I don't know if this is a kernel issue or a debian issue since I
> > updated my kernel at the same time I did a debian upgrade, and I'm using
> > debian unstable. Since debian unstable is going through some major
> > changes, this could be caused by that. I may be able to try some other
> > machines to see if they are affected, but that might take some time
> > before I can get to it.
> >
>
> Same here (s/debian/ubuntu/) but I have the exact same problem at the
> console, I don't think it could be an X issue unless X was able to wedge
> the keyboard controller.
>
> It feels like typing over a slow modem link, I can get about one word
> ahead of the cursor (X or console, regardless of load) but the delay
> seems to be constant.
>

Is this with ACPI? Have you tried playing with ec_polling parameter?

--
Dmitry