From: Hans-Peter Jansen <hpj@urpla.net>
To: linux-kernel@vger.kernel.org
Subject: Re: Keys get stuck
Date: Wed, 12 Mar 2008 22:22:04 +0100
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Cc: Jiri Kosina <jkosina@suse.cz>, David Newall <davidn@davidnewall.com>,
       Theodore Tso <tytso@mit.edu>, "Fred ." <eldmannen@gmail.com>
References: <f188924b0803111632h3c122ec7x1be171edd0884dee@mail.gmail.com> <47D8091E.6030906@davidnewall.com> <Pine.LNX.4.64.0803121748140.15209@jikos.suse.cz>
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Am Mittwoch, 12. M?rz 2008 schrieb Jiri Kosina:
> On Thu, 13 Mar 2008, David Newall wrote:
> > > The problem is that under heavy load the auto-repeat problem is real;
> > > I've seen it as well, and it means that I've started to try to avoid
> > > "make -j4" since that's a great way to trigger it.
> >
> > I'm sure it does suck under heavy load, although I suppose you could
> > increase the start time.  But I wonder if that is the problem this
> > time?  Modern machines are so damned fast they actually take real
> > effort to load.  Actually, "make -j4" doesn't sound particularly heavy.
> > There's huge disk i/o in a make.  Plenty of scheduling opportunities.
> > Obviously I only know what everybody else here knows; but with so many
> > recent posts suggesting a scheduling fault has been introduced, I'm
> > expecting it to be that.
>
> The problem became much more apparent during early -rc phase of 2.6.25
> for those people that have CONFIG_GROUP_SCHED turned on. This clearly
> shows that X are somehow unhappy with how kernel schedules them, but I
> don't have idea how autorepeat is implemented inside X and what could be
> the problem right now.

Just for the record, this problem started with openSUSE 10.2 for me, that's 
a 2.6.18 thingy. I'm a heavy xterm user, where the autorepeat gets a life 
of its own _occasionally_. I'm able to stop it by triggering a autorepeat 
manually (typical antidot reaction).

Pete
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