From: Ingo Molnar Date: Wed, 30 Jan 2008 12:32:57 +0000 (+0100) Subject: x86: fix pte_modify() bug X-Git-Tag: v2.6.25-rc1~1143^2~355 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7fff536d0ad45c4810f9b99845c707ceadc3afc;p=linux-2.6 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 Signed-off-by: Thomas Gleixner --- diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index 3a00d0d9df..91920565a5 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))