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SubjectRe: [2.6.25-git18 => 2.6.26-rc1-git1] Xorg crash with xf86MapVidMem error
On Thu, May 08, 2008 at 01:08:01PM -0700, Rufus & Azrael wrote:
> Venki Pallipadi a ecrit :
> >
> > Use UC_MINUS in reserve_memtype call with -1, when MTRR lookup fails for
> any
> > reason.
> >
> > Change the logic in mtrr_type_lookup to just get the type from the start
> > address. Using start and end adddress is not right/complete as start and
> > end can be covered by different mtrr (where old code will fail) or
> > start and end can be in same mtrr, but still have some different
> > memory type region in between. Using only start is less restrictive and
> > deterministic.
> >
> > Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
> >
> > ---
> > arch/x86/kernel/cpu/mtrr/generic.c | 7 ++-----
> > arch/x86/mm/pat.c | 8 +-------
> > 2 files changed, 3 insertions(+), 12 deletions(-)
> >
>
> Hi Venki,
>
> Patch applied on 2.6.26-rc1-git5 and all works fine in X server with
> CONFIG_X86_PAT=y.
>
> See dmesg and mtrr files attached.
>

Thanks for reporting the problem and testing the fix.
ingo/thomas/hpa: Can you please pick up this patch. Fixes the PAT regression
reported on this thread.

Thanks,
Venki



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