Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH] [29/50] x86: honor _PAGE_PSE bit on page walks | Date | Sat, 22 Sep 2007 00:32:28 +0200 (CEST) |
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From: "Jan Beulich" <jbeulich@novell.com> Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
arch/i386/mm/fault.c | 3 ++- arch/x86_64/mm/fault.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-)
Index: linux/arch/i386/mm/fault.c =================================================================== --- linux.orig/arch/i386/mm/fault.c +++ linux/arch/i386/mm/fault.c @@ -569,7 +569,8 @@ no_context: * it's allocated already. */ if ((page >> PAGE_SHIFT) < max_low_pfn - && (page & _PAGE_PRESENT)) { + && (page & _PAGE_PRESENT) + && !(page & _PAGE_PSE)) { page &= PAGE_MASK; page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)]; Index: linux/arch/x86_64/mm/fault.c =================================================================== --- linux.orig/arch/x86_64/mm/fault.c +++ linux/arch/x86_64/mm/fault.c @@ -175,7 +175,7 @@ void dump_pagetable(unsigned long addres pmd = pmd_offset(pud, address); if (bad_address(pmd)) goto bad; printk("PMD %lx ", pmd_val(*pmd)); - if (!pmd_present(*pmd)) goto ret; + if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret; pte = pte_offset_kernel(pmd, address); if (bad_address(pte)) goto bad; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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