[PATCH][2/2] NX: Triple fault with 4k kernel mappings and PAE

[Zwane Mwaikambo]

Booting with NX, CONFIG_X86_PAE and CONFIG_DEBUG_PAGEALLOC or 
mem=nopentium triple faults really early during boot as it appears to be 
tripping over pages from PAGE_OFFSET -> PAGE_OFFSET + 0x100000 not being 
marked as executable.

Signed-off-by: Zwane Mwaikambo <zwane@xxxxxxxxxxxxxxxx>

Index: linux-2.6.10-rc2/arch/i386/mm/init.c
===================================================================
RCS file: /home/cvsroot/linux-2.6.10-rc2/arch/i386/mm/init.c,v
retrieving revision 1.1.1.1
diff -u -p -B -r1.1.1.1 init.c
--- linux-2.6.10-rc2/arch/i386/mm/init.c	25 Nov 2004 19:45:32 -0000	1.1.1.1
+++ linux-2.6.10-rc2/arch/i386/mm/init.c	5 Dec 2004 05:41:19 -0000
@@ -126,7 +126,7 @@ static void __init page_table_range_init
 
 static inline int is_kernel_text(unsigned long addr)
 {
-	if (addr >= (unsigned long)_stext && addr <= (unsigned long)__init_end)
+	if (addr >= PAGE_OFFSET && addr <= (unsigned long)__init_end)
 		return 1;
 	return 0;
 }
 
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