Re: kernel lockups with 2.6.36

From: Thomas Fjellstrom
Date: Wed Nov 17 2010 - 02:40:08 EST


On November 14, 2010, you wrote:
> Today I experienced something odd, several kernel threads locked up in
> several different subsystems. It caused X to lock up, and not draw
> anything, access to nfs died, and trying to unmount, remount readonly, or
> do much other than ssh and copy files with scp (which may or may not have
> been in cache, might have been) locked up.
>
> I'm using a vanila 2.6.36.
>
> It looks to me like fscache/cachefiles may have started the problem, but I
> can't be sure, and I'm not entirely sure why that would cause i915 to lock
> up as well. I've disabled cachefiles for now, thinking that might make it
> go away. (its locked up twice today)
>
> here's the entire dmesg:
[snip]

Does anyone know whats going on here? Is it just a fscache bug? Or something a
little more insidious (since it seemed to cause a drm/intel_gfx lockup as
well?)

--
Thomas Fjellstrom
thomas@xxxxxxxxxxxxx
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