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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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