Re: [PATCH v2] x86/mm/pat: Fix BUG_ON in mmap_mem on QEMU/i386
From: Toshi Kani
Date: Wed Apr 13 2016 - 09:20:12 EST
On Wed, 2016-04-13 at 11:35 +0200, Ingo Molnar wrote:
> * Toshi Kani <toshi.kani@xxxxxxx> wrote:
Â:
> >
> > However, this code block, originally written for Pentiums and
> > earlier, is no longer adequate since a 32-bit Xen guest has
> > MTRRs disabled and supports ZONE_HIGHMEM.ÂÂIn this setup,
> > this code sets UC attribute for accessing RAM in high memory
> > range.
> >
> > Delete this code block as it has been unused for a long time.
> >
> > Reported-by: kernel test robot <ying.huang@xxxxxxxxxxxxxxx>
> > Link: https://lkml.org/lkml/2016/4/1/608
> > Signed-off-by: Toshi Kani <toshi.kani@xxxxxxx>
> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> > Cc: H. Peter Anvin <hpa@xxxxxxxxx>
> > Cc: Borislav Petkov <bp@xxxxxxx>
> > Cc: David Vrabel <david.vrabel@xxxxxxxxxx>
>
> So you missed the Reviewed-by tag from Boris ...
>
> I've added it, but please try to propagate tags!
Thanks Ingo!
I decided to drop the Reviewed-by tag for v1 since v2 has a different
approach.
-Toshi