linux-kernel - Re: Oops/Warning report for the week of March 28th 2008

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Message-Id: <1206740581.22530.83.camel@johannes.berg>
Date:	Fri, 28 Mar 2008 22:43:01 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Arjan van de Ven <arjan@...ux.intel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	NetDev <netdev@...r.kernel.org>, Dmitry Torokhov <dtor@...l.ru>
Subject: Re: Oops/Warning report for the week of March 28th 2008


> > That I've seen before, analysed a bit and posted:
> > http://permalink.gmane.org/gmane.linux.kernel.input/4281
> 
> Ahh.. And this is presumably triggered either by some new Xorg behavior in 
> fc9 or just the scheduler timing changes that caused other things too?

I tend to think it's actually a regression, I've done exactly what I
described there dozens of times before on older kernels and it doesn't
seem to be a race condition, X always locks the input device and I never
had trouble with that before.

> Your suggested solution sounds ok, but I'm also wondering why those things 
> aren't properly refcounted? It does sound like a bug to free the thing 
> before all users are gone - regardless of anything else. Hmm?

I have to admit to not understanding the depths of the input code, I
just took a quick look when I posted that. Mind you, that was 5 weeks
ago!

> But the ungrab sounds like the best short-term fix. Do we have a patch for 
> testing? Please? It's pretty late in the 2.6.25 cycle for these kinds of 
> things..

I don't. I think Dmitry just said in the other mail that he did, but I
haven't seen that yet.

johannes

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