Index: sys/amd64/linux/linux_sysvec.c
===================================================================
--- sys/amd64/linux/linux_sysvec.c
+++ sys/amd64/linux/linux_sysvec.c
@@ -343,6 +343,14 @@
 	 */
 	vectp -= imgp->args->argc + 1 + imgp->args->envc + 1;
 
+	if ((unsigned long)vectp % 16 == 0) {
+	//	printf("guziec: %p", vectp);
+#if 1
+		vectp = (void *)((unsigned long)vectp - 24);
+#endif
+	//	printf("-> %p\n", vectp);
+	}
+
 	/* vectp also becomes our initial stack base. */
 	stack_base = (register_t *)vectp;