Messages in this thread Patch in this message | | | From | Ian Campbell <> | Subject | [PATCH] xen: correct size of level2_kernel_pgt | Date | Fri, 29 Oct 2010 16:56:19 +0100 |
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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
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 + -- 1.5.6.5
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