Re: frequent lockups in 3.18rc4

From: Peter Zijlstra
Date: Wed Dec 17 2014 - 12:14:51 EST


On Wed, Dec 17, 2014 at 12:01:39PM -0500, Konrad Rzeszutek Wilk wrote:
> > Linus, do you have a pointer to whatever version of the patch you tried?
>
> The patch was this:
>
> a) http://article.gmane.org/gmane.linux.kernel/1835331
>
> Then Jurgen had a patch:
> https://lkml.kernel.org/g/CA+55aFxSRujj=cM1NkXYvxmo=Y1hb1e3tgLhdh1JDphzV6WKRw@xxxxxxxxxxxxxx
> which was one fix for one bug that ended up being fixed in QEMU - so
> it can be ignored.
>
> But my understanding of that thread was that it said patch 'a)' did not
> fix Dave's issues - and the conversation went off on NMI watchdog?
>
> I will look up the giant thread to make sense.

No, you're right in that the patch didn't solve the issue at hand and
that the conversation moved on into a different direction.

But I would very much like to see it (or something very much like it)
happen, because it does make the code much saner.
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