More debug spew for sorting mochitest-plain hang.

ipc/glue/AsyncChannel.cpp

@@ -158,9 +158,29 @@ AsyncChannel::Close()
         mIOLoop->PostTask(
             FROM_HERE, NewRunnableMethod(this, &AsyncChannel::OnCloseChannel));
 
+
+
+#ifdef OS_LINUX
+        printf("TEST-UNEXPECTED-FAIL | process %d | posted OnCloseChannel, awaiting notify\n", getpid());
+#endif
+
+
+
         while (ChannelClosing == mChannelState)
             mCvar.Wait();
 
+
+
+
+#ifdef OS_LINUX
+        printf("TEST-UNEXPECTED-FAIL | process %d | received notify\n", getpid());
+#endif
+
+
+
+
+
+
         // TODO sort out Close() on this side racing with Close() on the
         // other side
         mChannelState = ChannelClosed;
@@ -408,6 +428,18 @@ AsyncChannel::OnChannelError()
 {
     AssertIOThread();
 
+
+
+
+#ifdef OS_LINUX
+        printf("TEST-UNEXPECTED-FAIL | process %d | channel error detected\n", getpid());
+#endif
+
+
+
+
+
+
     MutexAutoLock lock(mMutex);
 
     // NB: this can race with the `Goodbye' event being processed by
@@ -437,9 +469,28 @@ AsyncChannel::OnCloseChannel()
 
     mTransport->Close();
 
+
+
+#ifdef OS_LINUX
+        printf("TEST-UNEXPECTED-FAIL | process %d | OnCloseChannel: closing\n", getpid());
+#endif
+
+
+
+
+
     MutexAutoLock lock(mMutex);
     mChannelState = ChannelClosed;
     mCvar.Notify();
+
+
+
+#ifdef OS_LINUX
+        printf("TEST-UNEXPECTED-FAIL | process %d | OnCloseChannel: notified worker\n", getpid());
+#endif
+
+
+
 }