diff --git a/src/ca/getDoneThread.cpp b/src/ca/getDoneThread.cpp
index ae01f1a..46777fe 100644
--- a/src/ca/getDoneThread.cpp
+++ b/src/ca/getDoneThread.cpp
@@ -48,7 +48,7 @@ void GetDoneThread::start()
     thread =  std::tr1::shared_ptr<epicsThread>(new epicsThread(
         *this,
         "getDoneThread",
-        epicsThreadGetStackSize(epicsThreadStackSmall),
+        epicsThreadGetStackSize(epicsThreadStackBig),
         epicsThreadPriorityLow));
     thread->start(); 
 }
diff --git a/src/ca/monitorEventThread.cpp b/src/ca/monitorEventThread.cpp
index d74cbd1..e2734b1 100644
--- a/src/ca/monitorEventThread.cpp
+++ b/src/ca/monitorEventThread.cpp
@@ -47,7 +47,7 @@ void MonitorEventThread::start()
     thread =  std::tr1::shared_ptr<epicsThread>(new epicsThread(
         *this,
         "monitorEventThread",
-        epicsThreadGetStackSize(epicsThreadStackSmall),
+        epicsThreadGetStackSize(epicsThreadStackBig),
         epicsThreadPriorityLow));
     thread->start();  
 }
diff --git a/src/ca/putDoneThread.cpp b/src/ca/putDoneThread.cpp
index 79eb6e9..1aa65d4 100644
--- a/src/ca/putDoneThread.cpp
+++ b/src/ca/putDoneThread.cpp
@@ -48,7 +48,7 @@ void PutDoneThread::start()
     thread =  std::tr1::shared_ptr<epicsThread>(new epicsThread(
         *this,
         "putDoneThread",
-        epicsThreadGetStackSize(epicsThreadStackSmall),
+        epicsThreadGetStackSize(epicsThreadStackBig),
         epicsThreadPriorityLow));
     thread->start(); 
 }
diff --git a/src/remote/blockingTCPAcceptor.cpp b/src/remote/blockingTCPAcceptor.cpp
index 9fb1d76..b1511c7 100644
--- a/src/remote/blockingTCPAcceptor.cpp
+++ b/src/remote/blockingTCPAcceptor.cpp
@@ -36,7 +36,7 @@ BlockingTCPAcceptor::BlockingTCPAcceptor(
     _destroyed(false),
     _thread(*this, "TCP-acceptor",
             epicsThreadGetStackSize(
-                epicsThreadStackMedium),
+                epicsThreadStackBig),
             epicsThreadPriorityMedium)
 {
     memset(&_bindAddress, 0, sizeof(_bindAddress));
@@ -57,7 +57,7 @@ BlockingTCPAcceptor::BlockingTCPAcceptor(Context::shared_pointer const & context
     _destroyed(false),
     _thread(*this, "TCP-acceptor",
             epicsThreadGetStackSize(
-                epicsThreadStackMedium),
+                epicsThreadStackBig),
             epicsThreadPriorityMedium)
 {
     _bindAddress = addr;
diff --git a/src/remote/blockingUDPTransport.cpp b/src/remote/blockingUDPTransport.cpp
index 0293806..6e9c2de 100644
--- a/src/remote/blockingUDPTransport.cpp
+++ b/src/remote/blockingUDPTransport.cpp
@@ -107,7 +107,7 @@ void BlockingUDPTransport::start() {
     }
 
     _thread.reset(new epicsThread(*this, threadName.c_str(),
-                                  epicsThreadGetStackSize(epicsThreadStackSmall),
+                                  epicsThreadGetStackSize(epicsThreadStackBig),
                                   epicsThreadPriorityMedium));
     _thread->start();
 }
diff --git a/src/rpcService/rpcServer.cpp b/src/rpcService/rpcServer.cpp
index 8b8c4a8..e097dd3 100644
--- a/src/rpcService/rpcServer.cpp
+++ b/src/rpcService/rpcServer.cpp
@@ -466,7 +466,7 @@ void RPCServer::runInNewThread(int seconds)
 
     epicsThreadCreate("RPCServer thread",
                       epicsThreadPriorityMedium,
-                      epicsThreadGetStackSize(epicsThreadStackSmall),
+                      epicsThreadGetStackSize(epicsThreadStackBig),
                       threadRunner, param.get());
 
     // let the thread delete 'param'
diff --git a/testApp/remote/testADCSim.cpp b/testApp/remote/testADCSim.cpp
index 2abb194..569416a 100644
--- a/testApp/remote/testADCSim.cpp
+++ b/testApp/remote/testADCSim.cpp
@@ -202,7 +202,7 @@ epicsThreadOnceId sim_mute_once = EPICS_THREAD_ONCE_INIT;
 
 SimADC::SimADC()
     :runner(*this, "Runner",
-            epicsThreadGetStackSize(epicsThreadStackSmall),
+            epicsThreadGetStackSize(epicsThreadStackBig),
             epicsThreadPriorityMedium)
     ,runner_stop(false)
 {
diff --git a/testCa/testCaProvider.cpp b/testCa/testCaProvider.cpp
index b92c462..ef22498 100644
--- a/testCa/testCaProvider.cpp
+++ b/testCa/testCaProvider.cpp
@@ -719,7 +719,7 @@ void TestIoc::start()
     thread =  std::auto_ptr<epicsThread>(new epicsThread(
         *this,
         "testIoc",
-        epicsThreadGetStackSize(epicsThreadStackSmall),
+        epicsThreadGetStackSize(epicsThreadStackBig),
         epicsThreadPriorityLow));
     thread->start();  
 #endif