Index: kernel/generic/src/proc/thread.c
===================================================================
--- kernel/generic/src/proc/thread.c	(revision feeac0d8cd6e0ce736779bc5f1dc701c5cf42ba6)
+++ kernel/generic/src/proc/thread.c	(revision 181c32f5d68a9d9647d8d5d9a027f5c3b67d0d18)
@@ -193,5 +193,5 @@
 	
 	thread->kstack = (uint8_t *)
-	    PA2KA(frame_alloc(STACK_FRAMES, kmflags, 0));
+	    PA2KA(frame_alloc(STACK_FRAMES, kmflags, STACK_SIZE - 1));
 	if (!thread->kstack) {
 #ifdef CONFIG_FPU