--- old/test/hotspot/jtreg/serviceability/sa/ClhsdbCDSCore.java	2018-09-24 08:53:38.915290999 +0530
+++ new/test/hotspot/jtreg/serviceability/sa/ClhsdbCDSCore.java	2018-09-24 08:53:38.447057000 +0530
@@ -79,6 +79,7 @@
             CDSTestUtils.createArchiveAndCheck(opts);
 
             String[] jArgs = {
+                "-Xmx512m",
                 "-XX:+UnlockDiagnosticVMOptions",
                 "-XX:SharedArchiveFile=" + SHARED_ARCHIVE_NAME,
                 "-XX:+CreateCoredumpOnCrash",