Re: linux-next: slab shrinkers: BUG at mm/list_lru.c:92

[Andrew Morton]

On Mon, 8 Jul 2013 14:53:52 +0200 Michal Hocko <mhocko@xxxxxxx> wrote:

> > Good news! The test was running since morning and it didn't hang nor
> > crashed. So this really looks like the right fix. It will run also
> > during weekend to be 100% sure. But I guess it is safe to say
> 
> Hmm, it seems I was too optimistic or we have yet another issue here (I
> guess the later is more probable).
> 
> The weekend testing got stuck as well. 
> 
> The dmesg shows there were some hung tasks:

That looks like the classic "we lost an IO completion" trace.

I think it would be prudent to defer these patches into 3.12.
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