#define EBADCALL (_SIGN 102) /* illegal system call number */
#define EBADSRCDST (_SIGN 103) /* bad source or destination process */
#define ECALLDENIED (_SIGN 104) /* no permission for system call */
-#define EDEADDST (_SIGN 105) /* send destination is not alive */
+#define EDEADSRCDST (_SIGN 105) /* source or destination is not alive */
#define ENOTREADY (_SIGN 106) /* source or destination is not ready */
#define EBADREQUEST (_SIGN 107) /* destination cannot handle request */
#define EDONTREPLY (_SIGN 201) /* pseudo-code: don't send a reply */