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SubjectRe: 2.6.38.2 breaks suspend to disk
Date
On Thursday, March 31, 2011, Stefano Stabellini wrote:
> On Thu, 31 Mar 2011, Michael Leun wrote:
> > Nope, unfortunately this does not change anything (neither when
> > applying ontop of the tree resulting from bisecting, nor ontop
> > 2.6.38.2).
> >
> > Just to make shure there was no mistake when bisecting I did
> >
> > patch -R -p1 <~/linux-2.6.38.y.git-ff518ea26654e05d325d996f6e3a7f5f569cc2d5.txt
> >
> > and then indeed it worked again.
>
> This patch fixes it for me.
>
>
> ---
>
> save cr4 to mmu_cr4_features at boot time
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Acked-by: Rafael J. Wysocki <rjw@sisk.pl>

Peter, Ingo, please regard this as urgent, it breaks -stable.

Thanks,
Rafael


> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 5a0484a..0943eb2 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -891,6 +891,7 @@ void __init setup_arch(char **cmdline_p)
> max_low_pfn = max_pfn;
>
> high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
> + mmu_cr4_features = read_cr4();
> #endif
>
> /*
> --
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