Index: kernel/generic/src/proc/thread.c
===================================================================
--- kernel/generic/src/proc/thread.c	(revision 58093d99e8de3e461cadfcbc02a56288a1c5a2d6)
+++ kernel/generic/src/proc/thread.c	(revision 12bdbcc6c84d5d9ed87e608479b389e608f2cc74)
@@ -352,5 +352,5 @@
 	irq_spinlock_unlock(&tidlock, true);
 
-	context_save(&thread->saved_context);
+	memset(&thread->saved_context, 0, sizeof(thread->saved_context));
 	context_set(&thread->saved_context, FADDR(cushion),
 	    (uintptr_t) thread->kstack, STACK_SIZE);