--- linux-2.2.26/include/asm-i386/processor.h~	Thu Jun 17 17:19:57 2004
+++ linux-2.2.26/include/asm-i386/processor.h	Thu Jun 17 17:32:36 2004
@@ -426,6 +426,7 @@
 
 #define clear_fpu(tsk) do { \
 	if (tsk->flags & PF_USEDFPU) { \
+		asm volatile("fnclex ; fwait"); \
 		tsk->flags &= ~PF_USEDFPU; \
 		stts(); \
 	} \