Index: arch/amd64/src/proc/task.c
===================================================================
--- arch/amd64/src/proc/task.c	(revision 2382d090e11b14167745fbf57d52ca43189ef508)
+++ arch/amd64/src/proc/task.c	(revision 953b0f336c4e9e8b01c3fa6bd0ac99c8d7c49909)
@@ -36,4 +36,5 @@
 void task_create_arch(task_t *t)
 {
+	t->arch.iomapver = 0;
 	bitmap_initialize(&t->arch.iomap, NULL, 0);
 }