Re: [PATCH v3 Bugfix 0/6] xstate/fpu bug fixes

From: Ingo Molnar
Date: Sat May 09 2015 - 02:10:21 EST

* Fenghua Yu <fenghua.yu@xxxxxxxxx> wrote:

> From: Fenghua Yu <fenghua.yu@xxxxxxxxx>
> This patchset is supposed to fix some xsave/xsaves/fpu related issues.

So as I mentioned it to Dave Hansen already yesterday, I think the
right, easily backportable fix would be to switch the kernel to
'standard format'. It's very close to the compacted format and its
behavior is much more obvious and it doesn't change the context size
on us.

Then, on top of a known working kernel, we can re-introduce compacted
format without pressure, with all the necessary signal frame
conversion problems solved properly.


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