Index: trunk/ippTools/src/stacktool.c
===================================================================
--- trunk/ippTools/src/stacktool.c	(revision 24866)
+++ trunk/ippTools/src/stacktool.c	(revision 24933)
@@ -931,4 +931,10 @@
     PXOPT_COPY_S16(config->args, where, "-fault", "stackSumSkyfile.fault", "==");
 
+    if (!psListLength(where->list) && !psMetadataLookupBool(NULL, config->args, "-all")) {
+        psFree(where);
+        psError(PXTOOLS_ERR_DATA, false, "search parameters are required");
+        return false;
+    }
+
     if (!psDBTransaction(config->dbh)) {
         psError(PS_ERR_UNKNOWN, false, "database error");