Re: Keys get stuck

From: Jiri Kosina
Date: Thu Mar 13 2008 - 07:32:01 EST


On Thu, 13 Mar 2008, Mike Galbraith wrote:

> > I'm not sure if it's the same issue or not, they don't repeat
> > "forever" for me, it just makes my speeellllliingggg llllooookkk
> > teerrriibbblle. Like that. Before this happens, letters usually stop
> > appearing on screen as I'm typing. I usually stop typing at that
> > point, since I know it will just become a mess.
> Yes, that's the symptom I was refering to. If you see that under
> reasonable CPU load, and _without_ major swapping going on, then I'd be
> suspicious of scheduler trouble. Swap can definitely keep X off the cpu
> for extended periods, and that seems to be what triggers the repeated
> keys behavior. (I've never troubleshot it, so must say _seems_)

I have a hard time calling this a kernel scheduler trouble. My
understanding is that X are sometimes unhappy how kernel schedules them
when under load, and that triggers bug in X autorepeat code.

--
Jiri Kosina
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/