diff --git a/test/jdk/ProblemList.txt b/test/jdk/ProblemList.txt
index 65635d03014..cc0680d07b3 100644
--- a/test/jdk/ProblemList.txt
+++ b/test/jdk/ProblemList.txt
@@ -506,9 +506,10 @@ java/lang/management/MemoryMXBean/Pending.java                  8158837 generic-
 java/lang/management/MemoryMXBean/PendingAllGC.sh               8158837 generic-all
 java/lang/management/ThreadMXBean/ThreadMXBeanStateTest.java    8247426 generic-all
 
-sun/management/jdp/JdpDefaultsTest.java                         8241865 linux-aarch64,macosx-all
-sun/management/jdp/JdpJmxRemoteDynamicPortTest.java             8241865 macosx-all
-sun/management/jdp/JdpSpecificAddressTest.java                  8241865 macosx-all
+sun/management/jdp/JdpDefaultsTest.java                         8241865,8308807 linux-aarch64,macosx-all,aix-ppc64
+sun/management/jdp/JdpJmxRemoteDynamicPortTest.java             8241865,8308807 macosx-all,aix-ppc64
+sun/management/jdp/JdpSpecificAddressTest.java                  8241865,8308807 macosx-all,aix-ppc64
+sun/management/jdp/JdpOffTest.java                              8308807 aix-ppc64
 
 ############################################################################
 
@@ -528,13 +529,16 @@ javax/management/remote/mandatory/subjectDelegation/SubjectDelegation1Test.java
 
 # jdk_net
 
-java/net/MulticastSocket/NoLoopbackPackets.java                 7122846 macosx-all
-java/net/MulticastSocket/SetLoopbackMode.java                   7122846 macosx-all
+java/net/MulticastSocket/NoLoopbackPackets.java                 7122846,8308807 macosx-all,aix-ppc64
+java/net/MulticastSocket/SetLoopbackMode.java                   7122846,8308807 macosx-all,aix-ppc64
 
-java/net/MulticastSocket/Test.java                              7145658 macosx-all
+java/net/MulticastSocket/Test.java                              7145658,8308807 macosx-all,aix-ppc64
 
 java/net/ServerSocket/AcceptInheritHandle.java                  8211854 aix-ppc64
 
+java/net/MulticastSocket/B6427403.java                          8308807 aix-ppc64
+java/net/MulticastSocket/SetOutgoingIf.java                     8308807 aix-ppc64
+
 ############################################################################
 
 # jdk_nio
@@ -547,6 +551,8 @@ java/nio/channels/DatagramChannel/Unref.java                    8233437 generic-
 
 jdk/nio/zipfs/TestLocOffsetFromZip64EF.java                     8301183 linux-all
 
+java/nio/channels/DatagramChannel/AfterDisconnect.java          8308807 aix-ppc64
+
 ############################################################################
 
 # jdk_rmi