diff --git a/tools/valgrind-webrtc/gtest_exclude/libjingle_media_unittest.gtest-tsan.txt b/tools/valgrind-webrtc/gtest_exclude/libjingle_media_unittest.gtest-tsan.txt
index ae525948f8..6390b182a2 100644
--- a/tools/valgrind-webrtc/gtest_exclude/libjingle_media_unittest.gtest-tsan.txt
+++ b/tools/valgrind-webrtc/gtest_exclude/libjingle_media_unittest.gtest-tsan.txt
@@ -1,3 +1,4 @@
 TODO(wu): issue 2380
 WebRtcVideoMediaChannelTest.TwoStreamsSendAndReceive
 WebRtcVideoMediaChannelTest.TwoStreamsReUseFirstStream
+WebRtcVideoMediaChannelTest.TwoStreamsSendAndUnsignalledRecv
diff --git a/tools/valgrind-webrtc/memcheck/suppressions.txt b/tools/valgrind-webrtc/memcheck/suppressions.txt
index a55ac1ba8e..e95abb850b 100644
--- a/tools/valgrind-webrtc/memcheck/suppressions.txt
+++ b/tools/valgrind-webrtc/memcheck/suppressions.txt
@@ -571,3 +571,20 @@
    fun:_ZN14DtlsTestClient12VerifyPacketEPKcmPj
    ...
 }
+{
+   bug_3063
+   Memcheck:Uninitialized
+   ...
+   fun:vfprintf
+   fun:__vsnprintf_chk
+   fun:_ZN6webrtc5Trace3AddENS_10TraceLevelENS_11TraceModuleEiPKcz
+   fun:_ZNK6webrtc12ViECodecImpl21GetCodecTargetBitrateEiPj
+   fun:_ZN7cricket23WebRtcVideoMediaChannel23MaybeChangeStartBitrateEiPN6webrtc10VideoCodecE
+   fun:_ZN7cricket23WebRtcVideoMediaChannel12SetSendCodecEPNS_26WebRtcVideoChannelSendInfoERKN6webrtc10VideoCodecEiii
+   fun:_ZN7cricket23WebRtcVideoMediaChannel12SetSendCodecERKN6webrtc10VideoCodecEiii
+   fun:_ZN7cricket23WebRtcVideoMediaChannel13SetSendCodecsERKSt6vectorINS_10VideoCodecESaIS2_EE
+   fun:_ZN21VideoMediaChannelTestIN7cricket17WebRtcVideoEngineENS0_23WebRtcVideoMediaChannelEE11SetOneCodecERKNS0_10VideoCodecE
+   fun:_ZN21VideoMediaChannelTestIN7cricket17WebRtcVideoEngineENS0_23WebRtcVideoMediaChannelEE4SendERKNS0_10VideoCodecE
+   fun:_ZN21VideoMediaChannelTestIN7cricket17WebRtcVideoEngineENS0_23WebRtcVideoMediaChannelEE36TwoStreamsSendAndFailUnsignalledRecvERKNS0_10VideoCodecE
+   fun:_ZN69WebRtcVideoMediaChannelTest_TwoStreamsSendAndFailUnsignalledRecv_Test8TestBodyEv
+}