diff --git a/src/libraries/System.Threading.Tasks/tests/Task/TaskRunSyncTests.cs b/src/libraries/System.Threading.Tasks/tests/Task/TaskRunSyncTests.cs
index 281c26d326d9c..0f5a53b21bf54 100644
--- a/src/libraries/System.Threading.Tasks/tests/Task/TaskRunSyncTests.cs
+++ b/src/libraries/System.Threading.Tasks/tests/Task/TaskRunSyncTests.cs
@@ -524,6 +524,7 @@ public static void TaskRunSyncTest14()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         [OuterLoop]
         public static void TaskRunSyncTest15()
         {
@@ -541,6 +542,7 @@ public static void TaskRunSyncTest16()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         [OuterLoop]
         public static void TaskRunSyncTest17()
         {
@@ -550,6 +552,7 @@ public static void TaskRunSyncTest17()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         [OuterLoop]
         public static void TaskRunSyncTest18()
         {
@@ -558,6 +561,7 @@ public static void TaskRunSyncTest18()
             test.RealRun();
         }
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         [OuterLoop]
         public static void TaskRunSyncTest19()
         {
@@ -567,6 +571,7 @@ public static void TaskRunSyncTest19()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         [OuterLoop]
         public static void TaskRunSyncTest20()
         {
@@ -591,6 +596,7 @@ public static void TaskRunSyncTest22()
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         [OuterLoop]
         public static void TaskRunSyncTest23()
         {
diff --git a/src/libraries/System.Threading.Tasks/tests/TaskScheduler/TaskSchedulerTests.cs b/src/libraries/System.Threading.Tasks/tests/TaskScheduler/TaskSchedulerTests.cs
index 79aaf760e05e1..6acd4be3d9331 100644
--- a/src/libraries/System.Threading.Tasks/tests/TaskScheduler/TaskSchedulerTests.cs
+++ b/src/libraries/System.Threading.Tasks/tests/TaskScheduler/TaskSchedulerTests.cs
@@ -211,6 +211,7 @@ public static void RunBuggySchedulerTests()
 
         [Fact]
         [OuterLoop]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/89921", typeof(PlatformDetection), nameof(PlatformDetection.IsAlpine), nameof(PlatformDetection.IsMonoRuntime))]
         public static void RunSynchronizationContextTaskSchedulerTests()
         {
             // Remember the current SynchronizationContext, so that we can restore it
diff --git a/src/tasks/AndroidAppBuilder/Templates/monodroid.c b/src/tasks/AndroidAppBuilder/Templates/monodroid.c
index 529ccb68cd341..ccd06557e8196 100644
--- a/src/tasks/AndroidAppBuilder/Templates/monodroid.c
+++ b/src/tasks/AndroidAppBuilder/Templates/monodroid.c
@@ -367,7 +367,7 @@ Java_net_dot_MonoRunner_initRuntime (JNIEnv* env, jobject thiz, jstring j_files_
     for (int i = 0; i < args_len; ++i)
     {
         jstring j_arg = (*env)->GetObjectArrayElement(env, j_args, i);
-        managed_argv[i + 1] = (*env)->GetStringUTFChars(env, j_arg, NULL);
+        managed_argv[i + 1] = (char*)((*env)->GetStringUTFChars(env, j_arg, NULL));
     }
 
     int res = mono_droid_runtime_init (executable, managed_argc, managed_argv, current_local_time);
diff --git a/src/tasks/AotCompilerTask/MonoAOTCompiler.cs b/src/tasks/AotCompilerTask/MonoAOTCompiler.cs
index a7c8518317d1f..ffc95c0d38f2c 100644
--- a/src/tasks/AotCompilerTask/MonoAOTCompiler.cs
+++ b/src/tasks/AotCompilerTask/MonoAOTCompiler.cs
@@ -1106,7 +1106,8 @@ private bool GenerateAotModulesTable(IEnumerable<ITaskItem> assemblies, string[]
                 {
                     writer.WriteLine($"extern void *{symbol};");
                 }
-                writer.WriteLine("void register_aot_modules ()");
+                writer.WriteLine("void register_aot_modules (void);");
+                writer.WriteLine("void register_aot_modules (void)");
                 writer.WriteLine("{");
                 foreach (var symbol in symbols)
                 {
@@ -1142,6 +1143,7 @@ private bool GenerateAotModulesTable(IEnumerable<ITaskItem> assemblies, string[]
                     writer.WriteLine($"extern void *{symbol};");
                 }
 
+                writer.WriteLine("void register_aot_modules (void);");
                 writer.WriteLine("void register_aot_modules (void)");
                 writer.WriteLine("{");
                 foreach (var symbol in symbols)