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SubjectRe: 2.6.0-test2-mm3

On Sun, 3 Aug 2003, Marcelo Abreu wrote:

> The 4G patch has changed the 'ldt' member of mm_context_t, calling
> it 'ldt_pages'. Patch from Raphael fixes fpu_system.h for correct
> compilation, but system won't boot with 'no387' parameter. So semantics
> must have been changed too.

i sent the correct patch to Andrew already:

--- linux/arch/i386/math-emu/fpu_system.h.orig
+++ linux/arch/i386/math-emu/fpu_system.h
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <asm/atomic_kmap.h>

/* This sets the pointer FPU_info to point to the argument part
of the stack frame of math_emulate() */
@@ -22,7 +23,7 @@

/* s is always from a cpu register, and the cpu does bounds checking
* during register load --> no further bounds checks needed */
-#define LDT_DESCRIPTOR(s) (((struct desc_struct *)current->mm->context.ldt)[(s) >> 3])
+#define LDT_DESCRIPTOR(s) (((struct desc_struct *)__kmap_atomic_vaddr(KM_LDT_PAGE0))[(s) >> 3])
#define SEG_D_SIZE(x) ((x).b & (3 << 21))
#define SEG_G_BIT(x) ((x).b & (1 << 23))
#define SEG_GRANULARITY(x) (((x).b & (1 << 23)) ? 4096 : 1)

-
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