--- linux/arch/i386/kernel/process.c.old	2005-08-07 21:58:25.000000000 +0400
+++ linux/arch/i386/kernel/process.c	2006-01-01 03:03:10.000000000 +0300
@@ -573,7 +573,9 @@
 	struct pt_regs ptregs;
 	
 	ptregs = *(struct pt_regs *)
-		((unsigned long)tsk->thread_info+THREAD_SIZE - sizeof(ptregs));
+		((unsigned long)tsk->thread_info +
+		/* see comments in copy_thread() about -8 */
+		THREAD_SIZE - sizeof(ptregs) - 8);
 	ptregs.xcs &= 0xffff;
 	ptregs.xds &= 0xffff;
 	ptregs.xes &= 0xffff;