diff -r 9846af5a0949 test/jdk/java/lang/instrument/PremainClass/NoPremainAgentTest.java
--- a/test/jdk/java/lang/instrument/PremainClass/NoPremainAgentTest.java	Mon Apr 19 12:47:46 2021 +0200
+++ b/test/jdk/java/lang/instrument/PremainClass/NoPremainAgentTest.java	Wed Apr 21 06:54:28 2021 +0200
@@ -41,7 +41,7 @@
     // Verify that we get the correct exception.
     public static void main(String[] a) throws Exception {
         String testArgs = String.format(
-                "-javaagent:NoPremainAgent.jar -classpath %s DummyMain",
+                "-javaagent:NoPremainAgent.jar -Xmx128m -XX:-CreateCoredumpOnCrash -classpath %s DummyMain",
                 System.getProperty("test.classes", "."));
 
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
diff -r 9846af5a0949 test/jdk/java/lang/instrument/PremainClass/ZeroArgPremainAgentTest.java
--- a/test/jdk/java/lang/instrument/PremainClass/ZeroArgPremainAgentTest.java	Mon Apr 19 12:47:46 2021 +0200
+++ b/test/jdk/java/lang/instrument/PremainClass/ZeroArgPremainAgentTest.java	Wed Apr 21 06:54:28 2021 +0200
@@ -41,7 +41,7 @@
     // Verify that we get the correct exception.
     public static void main(String[] a) throws Exception {
         String testArgs = String.format(
-                "-javaagent:ZeroArgPremainAgent.jar -classpath %s DummyMain",
+                "-javaagent:ZeroArgPremainAgent.jar -Xmx128m -XX:-CreateCoredumpOnCrash -classpath %s DummyMain",
                 System.getProperty("test.classes", "."));
 
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(