--- old/src/jdk.jfr/share/conf/jfr/default.jfc	2020-02-26 11:26:31.905488100 +0100
+++ new/src/jdk.jfr/share/conf/jfr/default.jfc	2020-02-26 11:26:30.791874900 +0100
@@ -341,6 +341,11 @@
       <setting name="threshold">0 ms</setting>
     </event>
 
+    <event name="jdk.SystemGC">
+      <setting name="enabled">true</setting>
+      <setting name="stackTrace">true</setting>
+    </event>
+
     <event name="jdk.ParallelOldGarbageCollection">
       <setting name="enabled" control="gc-enabled-normal">true</setting>
       <setting name="threshold">0 ms</setting>