Jan Beulich
2007-Jan-05 16:56 UTC
[Xen-devel] [PATCH] x86/PAE linux: don''t restrict upper half of page table entries to 3 bits
.. when dumping the page table contents during an oops.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Index: head-2006-12-01/arch/i386/mm/fault-xen.c
==================================================================---
head-2006-12-01.orig/arch/i386/mm/fault-xen.c 2007-01-05 17:14:18.000000000
+0100
+++ head-2006-12-01/arch/i386/mm/fault-xen.c 2007-01-05 17:17:54.000000000 +0100
@@ -225,7 +225,7 @@ static void dump_fault_path(unsigned lon
p += (address >> 30) * 2;
printk(KERN_ALERT "%08lx -> *pde = %08lx:%08lx\n", page, p[1],
p[0]);
if (p[0] & 1) {
- mfn = (p[0] >> PAGE_SHIFT) | ((p[1] & 0x7) << 20);
+ mfn = (p[0] >> PAGE_SHIFT) | (p[1] << 20);
page = mfn_to_pfn(mfn) << PAGE_SHIFT;
p = (unsigned long *)__va(page);
address &= 0x3fffffff;
@@ -234,7 +234,7 @@ static void dump_fault_path(unsigned lon
page, p[1], p[0]);
#ifndef CONFIG_HIGHPTE
if (p[0] & 1) {
- mfn = (p[0] >> PAGE_SHIFT) | ((p[1] & 0x7) << 20);
+ mfn = (p[0] >> PAGE_SHIFT) | (p[1] << 20);
page = mfn_to_pfn(mfn) << PAGE_SHIFT;
p = (unsigned long *) __va(page);
address &= 0x001fffff;
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