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)
{
struct Xgt_desc_struct gdt_desc = {0, 0};
unsigned long gdt, tss;
- __asm__ __volatile__("sgdt %0": "=m" (gdt_desc): :"memory");
+ store_gdt(&gdt_desc);
gdt = gdt_desc.address;
printk("double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);