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Subject: Re: Kernel 4.7: PAGE_GUARDED and _PAGE_NO_CACHE
From: Michael Ellerman <mpe@ellerman.id.au>
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On Tue, 2016-06-07 at 22:17 +0200, Christian Zigotzky wrote:
> 
> 764041e0f43cc7846f6d8eb246d65b53cc06c764 is the first bad commit
> commit 764041e0f43cc7846f6d8eb246d65b53cc06c764
> Author: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> Date:   Fri Apr 29 23:26:09 2016 +1000
> 
>      powerpc/mm/radix: Add checks in slice code to catch radix usage
> 
>      Radix doesn't need slice support. Catch incorrect usage of slice code
>      when radix is enabled.
> 
>      Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
>      Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
> 

Hmm, I find that hard to believe. But maybe I'm missing something.

Can you checkout Linus' master and then revert that commit?

cheers