8352942: jdk/jfr/startupargs/TestMemoryOptions.java fails with 32-bit build

Reviewed-by: phh

Author: tkiriyama

test/jdk/jdk/jfr/startupargs/TestMemoryOptions.java

@@ -485,6 +485,7 @@ private static void launchTestVM(TestCase tc) throws Exception {
             if (flightRecorderOptions != null) {
                 pb = ProcessTools.createTestJavaProcessBuilder("--add-exports=jdk.jfr/jdk.jfr.internal=ALL-UNNAMED",
                                                                "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
+                                                               "-Xmx256m",
                                                                flightRecorderOptions,
                                                                "-XX:StartFlightRecording",
                                                                SUT.class.getName(),
@@ -493,6 +494,7 @@ private static void launchTestVM(TestCase tc) throws Exception {
                 // default, no FlightRecorderOptions passed
                 pb = ProcessTools.createTestJavaProcessBuilder("--add-exports=jdk.jfr/jdk.jfr.internal=ALL-UNNAMED",
                                                                "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
+                                                               "-Xmx256m",
                                                                "-XX:StartFlightRecording",
                                                                SUT.class.getName(),
                                                                tc.getTestName());