diff --git a/test/hotspot/jtreg/ProblemList.txt b/test/hotspot/jtreg/ProblemList.txt
index d41f1e3818d..41a93a8b10b 100644
--- a/test/hotspot/jtreg/ProblemList.txt
+++ b/test/hotspot/jtreg/ProblemList.txt
@@ -86,10 +86,6 @@ gc/TestAllocHumongousFragment.java#aggressive 8298781 generic-all
 gc/TestAllocHumongousFragment.java#g1 8298781 generic-all
 gc/TestAllocHumongousFragment.java#static 8298781 generic-all
 gc/shenandoah/oom/TestAllocOutOfMemory.java#large 8344312 linux-ppc64le
-gc/stress/jfr/TestStressAllocationGCEventsWithShenandoah.java#generational 8382335 generic-all
-gc/stress/jfr/TestStressAllocationGCEventsWithShenandoah.java#default 8382335 generic-all
-gc/stress/jfr/TestStressBigAllocationGCEventsWithShenandoah.java#generational 8382335 generic-all
-gc/stress/jfr/TestStressBigAllocationGCEventsWithShenandoah.java#default 8382335 generic-all
 
 #############################################################################
 
diff --git a/test/hotspot/jtreg/gc/stress/jfr/TestStressAllocationGCEventsWithShenandoah.java b/test/hotspot/jtreg/gc/stress/jfr/TestStressAllocationGCEventsWithShenandoah.java
index 743e59bca61..3c49f94428b 100644
--- a/test/hotspot/jtreg/gc/stress/jfr/TestStressAllocationGCEventsWithShenandoah.java
+++ b/test/hotspot/jtreg/gc/stress/jfr/TestStressAllocationGCEventsWithShenandoah.java
@@ -30,7 +30,7 @@ package jdk.jfr.event.gc.detailed;
  * @requires vm.hasJFR
  * @requires vm.gc.Shenandoah
  * @library /test/lib /test/jdk
- * @run main/othervm -XX:+UseShenandoahGC -Xmx64m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressAllocationGCEventsWithShenandoah
+ * @run main/othervm -XX:+UseShenandoahGC -Xmx128m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressAllocationGCEventsWithShenandoah
  */
 
  /**
@@ -39,7 +39,7 @@ package jdk.jfr.event.gc.detailed;
   * @requires vm.hasJFR
   * @requires vm.gc.Shenandoah
   * @library /test/lib /test/jdk
-  * @run main/othervm -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx64m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressAllocationGCEventsWithShenandoah
+  * @run main/othervm -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx128m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressAllocationGCEventsWithShenandoah
   */
 public class TestStressAllocationGCEventsWithShenandoah {
 
diff --git a/test/hotspot/jtreg/gc/stress/jfr/TestStressBigAllocationGCEventsWithShenandoah.java b/test/hotspot/jtreg/gc/stress/jfr/TestStressBigAllocationGCEventsWithShenandoah.java
index cb7e4b5d1ee..94fdc83bffc 100644
--- a/test/hotspot/jtreg/gc/stress/jfr/TestStressBigAllocationGCEventsWithShenandoah.java
+++ b/test/hotspot/jtreg/gc/stress/jfr/TestStressBigAllocationGCEventsWithShenandoah.java
@@ -30,7 +30,7 @@ package jdk.jfr.event.gc.detailed;
  * @requires vm.hasJFR
  * @requires vm.gc.Shenandoah
  * @library /test/lib /test/jdk
- * @run main/othervm -XX:+UseShenandoahGC -Xmx256m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressBigAllocationGCEventsWithShenandoah 1048576
+ * @run main/othervm -XX:+UseShenandoahGC -Xmx512m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressBigAllocationGCEventsWithShenandoah 1048576
  */
 
  /**
@@ -39,7 +39,7 @@ package jdk.jfr.event.gc.detailed;
   * @requires vm.hasJFR
   * @requires vm.gc.Shenandoah
   * @library /test/lib /test/jdk
-  * @run main/othervm -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx256m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressBigAllocationGCEventsWithShenandoah 1048576
+  * @run main/othervm -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational -Xmx512m -XX:ActiveProcessorCount=1 jdk.jfr.event.gc.detailed.TestStressBigAllocationGCEventsWithShenandoah 1048576
   */
 public class TestStressBigAllocationGCEventsWithShenandoah {