diff -r bbf8bed59bcb -r 2bb754abd467 kernel/eka/kernel/sipc.cpp
--- a/kernel/eka/kernel/sipc.cpp	Wed Jun 09 11:10:19 2010 +0300
+++ b/kernel/eka/kernel/sipc.cpp	Mon Jun 21 17:12:14 2010 +0300
@@ -1144,7 +1144,7 @@
 
 		if(m->IsDelivered() || m->IsAccepted())
 			{
-			if (!IsClosing())
+			if (!IsClosing() && t->iMState != DThread::EDead)
 				{
 				m->SetCompleting();
 				Kern::QueueRequestComplete(t, m, aReason);
@@ -1750,7 +1750,7 @@
 		s->iConnectMsgPtr = NULL;
 
 	__KTRACE_OPT(KIPC,Kern::Printf("MsgCo: M:%d r:%d %O->%O", m.iFunction, aReason, TheCurrentThread, m.iClient));
-	if (!s->IsClosing())
+	if (!s->IsClosing() && m.iClient->iMState != DThread::EDead)
 		{
 		m.SetCompleting();
 		Kern::QueueRequestComplete(m.iClient, &m, aReason);