[PATCH] (was Re: HIGHMEM4G config for 1GB RAM on desktop?)

[Roland Dreier]

    > wli tells me that there are additional places in the code that
    > need fixing.

Looks like arch/i386/kernel/doublefault.c is one place in the code
that hardcodes the assumption that PAGE_OFFSET == 0xC0000000.  Here's
a patch that fixes that.

(Of course this doesn't really fix anything except debugging output)

 - Roland

Signed-off-by: Roland Dreier <roland@xxxxxxxxxxx>

Index: linux-2.6.8-rc1/arch/i386/kernel/doublefault.c
===================================================================
--- linux-2.6.8-rc1.orig/arch/i386/kernel/doublefault.c
+++ linux-2.6.8-rc1/arch/i386/kernel/doublefault.c
@@ -13,7 +13,7 @@
 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
 #define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
 
-#define ptr_ok(x) ((x) > 0xc0000000 && (x) < 0xc1000000)
+#define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + 0x1000000)
 
 static void doublefault_fn(void)
 {
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/