Disable TestUdpReadyToSendIPv4 under MSan.

webrtc/base/physicalsocketserver_unittest.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 193 matching lines @@
 #define MAYBE_TestUdpIPv6 DISABLED_TestUdpIPv6
 #else
 #define MAYBE_TestUdpIPv6 TestUdpIPv6
 #endif
 TEST_F(PhysicalSocketTest, MAYBE_TestUdpIPv6) {
   SocketTest::TestUdpIPv6();
 }
 
 // Disable for TSan v2, see
 // https://code.google.com/p/webrtc/issues/detail?id=3498 for details.
-#if !defined(THREAD_SANITIZER)
+// Also disable for MSan, see:
+// https://code.google.com/p/webrtc/issues/detail?id=4958
+// TODO(deadbeef): Enable again once test is reimplemented to be unflaky.
+#if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER)
 
 TEST_F(PhysicalSocketTest, TestUdpReadyToSendIPv4) {
   SocketTest::TestUdpReadyToSendIPv4();
 }
 
-#endif // if !defined(THREAD_SANITIZER)
+#endif // if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER)
 
 TEST_F(PhysicalSocketTest, TestUdpReadyToSendIPv6) {
   SocketTest::TestUdpReadyToSendIPv6();
 }
 
 TEST_F(PhysicalSocketTest, TestGetSetOptionsIPv4) {
   SocketTest::TestGetSetOptionsIPv4();
 }
 
 TEST_F(PhysicalSocketTest, TestGetSetOptionsIPv6) {
@@ skipping 119 matching lines @@
   thread->Start(runnable.get());
   EXPECT_TRUE(ss_->Wait(1500, true));
   EXPECT_TRUE(ExpectSignal(SIGTERM));
   EXPECT_EQ(Thread::Current(), signaled_thread_);
   EXPECT_TRUE(ExpectNone());
 }
 
 #endif
 
 }  // namespace rtc