Messages in this thread | | | Subject | Re: [PATCH] xen: correct size of level2_kernel_pgt | From | Ian Campbell <> | Date | Fri, 29 Oct 2010 18:37:35 +0100 |
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On Fri, 2010-10-29 at 18:22 +0100, Jeremy Fitzhardinge wrote: > On 10/29/2010 08:56 AM, Ian Campbell wrote: > > sizeof(pmd_t *) is 4 bytes on PAE leading to an allocation of only > > 2048 bytes. The correct size is sizeof(pmd_t) giving us a full page > > allocation. > > > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com> > > Cc: Jeremy Fitzhardinge <jeremy@goop.org> > > --- > > > > Applies to mainline since 2.6.36 and to xen.git 2.6.32 based trees > > This is just for 2.6.37?
2.6.36.stable too, I think. I added stable@kernel.org to my patch header but didn't "guilt refresh" so it didn't show up here.
Ian.
> > J > > > arch/x86/xen/mmu.c | 2 +- > > 1 files changed, 1 insertions(+), 1 deletions(-) > > > > diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c > > index c237b81..21ed8d7 100644 > > --- a/arch/x86/xen/mmu.c > > +++ b/arch/x86/xen/mmu.c > > @@ -2126,7 +2126,7 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, > > { > > pmd_t *kernel_pmd; > > > > - level2_kernel_pgt = extend_brk(sizeof(pmd_t *) * PTRS_PER_PMD, PAGE_SIZE); > > + level2_kernel_pgt = extend_brk(sizeof(pmd_t) * PTRS_PER_PMD, PAGE_SIZE); > > > > max_pfn_mapped = PFN_DOWN(__pa(xen_start_info->pt_base) + > > xen_start_info->nr_pt_frames * PAGE_SIZE + >
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