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authorIngo Molnar <mingo@elte.hu>2008-01-30 13:32:57 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:32:57 +0100
commitb7fff536d0ad45c4810f9b99845c707ceadc3afc (patch)
tree3497079d8058edf9b30a01451735e1ef9462ade7
parent38472311679d8784c2934d071ddda23d9b3fe264 (diff)
x86: fix pte_modify() bug
fix sign extension bug in PTE_MASK / _PTE_CHG_MASK. this resolves the following bootup crash on PAE systems: [ 94.710726] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 [ 94.717764] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 [ 94.724772] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 [ 94.731777] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--include/asm-x86/page.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index 3a00d0d9dfd..91920565a57 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -11,7 +11,7 @@
#ifdef __KERNEL__
#define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK)
-#define PTE_MASK PHYSICAL_PAGE_MASK
+#define PTE_MASK (_AT(long, PHYSICAL_PAGE_MASK))
#define LARGE_PAGE_SIZE (_AC(1,UL) << PMD_SHIFT)
#define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1))