diff --git a/examples/spamme.cpp b/examples/spamme.cpp
index 6c37e2e..d66942b 100644
--- a/examples/spamme.cpp
+++ b/examples/spamme.cpp
@@ -247,9 +247,9 @@ struct SpamProvider : public pva::ChannelProvider,
     virtual pva::ChannelFind::shared_pointer channelFind(std::string const & name,
                                                     pva::ChannelFindRequester::shared_pointer const & requester) OVERRIDE FINAL
     {
-        std::cerr<<"XXX "<<name<<"\n";
+        std::cerr<<"XXX '"<<name<<"'\n";
         pva::ChannelFind::shared_pointer ret;
-        if(name==this->channelName) {
+        if(name.size()>=this->channelName.size() && strncmp(name.c_str(), this->channelName.c_str(), this->channelName.size())==0) {
             ret = shared_from_this();
         }
         std::cout<<__FUNCTION__<<" "<<name<<" found="<<!!ret<<"\n";
@@ -264,7 +264,7 @@ struct SpamProvider : public pva::ChannelProvider,
                                                   short priority, std::string const & address) OVERRIDE FINAL
     {
         std::tr1::shared_ptr<SpamChannel> ret;
-        if(name==channelName) {
+        if(name.size()>=this->channelName.size() && strncmp(name.c_str(), this->channelName.c_str(), this->channelName.size())==0) {
             ret.reset(new SpamChannel(shared_from_this(), channelName, requester));
         }
         std::cout<<__FUNCTION__<<" "<<name<<" connect "<<ret.get()<<"\n";
diff --git a/pvtoolsSrc/pvlist.cpp b/pvtoolsSrc/pvlist.cpp
index f739ce6..e9840c6 100644
--- a/pvtoolsSrc/pvlist.cpp
+++ b/pvtoolsSrc/pvlist.cpp
@@ -580,7 +580,7 @@ int main (int argc, char *argv[])
         {
             const ServerEntry& entry = iter->second;
 
-            cout << "GUID 0x" << entry.guid << ", version " << (int)entry.version << ": "
+            cout << "GUID 0x" << entry.guid << " version " << (int)entry.version << ": "
                  << entry.protocol << "@[";
 
             size_t count = entry.addresses.size();
diff --git a/src/client/pvAccess.cpp b/src/client/pvAccess.cpp
index 3238b9d..e78f740 100644
--- a/src/client/pvAccess.cpp
+++ b/src/client/pvAccess.cpp
@@ -259,19 +259,39 @@ struct Get2PutProxy : public ChannelGet
     ChannelPut::shared_pointer op; // the put we wrap
     std::tr1::shared_ptr<Get2PutProxy::Req> op_request; // keep our Req alive
 
+    ChannelPut::shared_pointer OP() {
+        epicsGuard<epicsMutex> G(op_request->mutex);
+        return op;
+    }
+
     Get2PutProxy() {}
     virtual ~Get2PutProxy() {}
 
     virtual void destroy() OVERRIDE FINAL
-    { op->destroy(); }
+    {
+        ChannelPut::shared_pointer O(OP());
+        if(O) O->destroy();
+    }
     virtual std::tr1::shared_ptr<Channel> getChannel() OVERRIDE FINAL
-    { return op->getChannel(); }
+    {
+        ChannelPut::shared_pointer O(OP());
+        return O ? O->getChannel() : std::tr1::shared_ptr<Channel>();
+    }
     virtual void cancel() OVERRIDE FINAL
-    { op->cancel(); }
+    {
+        ChannelPut::shared_pointer O(OP());
+        if(O) O->cancel();
+    }
     virtual void lastRequest() OVERRIDE FINAL
-    { op->lastRequest(); }
+    {
+        ChannelPut::shared_pointer O(OP());
+        if(O) O->lastRequest();
+    }
     virtual void get() OVERRIDE FINAL
-    { op->get(); }
+    {
+        ChannelPut::shared_pointer O(OP());
+        if(O) O->get();
+    }
 };
 }// namespace
 
diff --git a/testApp/Makefile b/testApp/Makefile
index bc3a8f8..8a254a7 100644
--- a/testApp/Makefile
+++ b/testApp/Makefile
@@ -15,18 +15,22 @@ PROD_LIBS += pvAccess pvData Com
 include $(PVACCESS_TEST)/utils/Makefile
 include $(PVACCESS_TEST)/remote/Makefile
 
-# The testHarness runs all the test programs in a known working order.
+# pvAccessAllTests runs all the test programs in a known working order.
 testHarness_SRCS += pvAccessAllTests.c
 
-PROD_vxWorks = vxTestHarness
-vxTestHarness_SRCS += $(testHarness_SRCS)
-TESTSPEC_vxWorks = vxTestHarness.$(MUNCH_SUFFIX); pvAccessAllTests
+# Name the application pvaTestHarness
+pvaTestHarness_SRCS = $(testHarness_SRCS)
 
-PROD_RTEMS += rtemsTestHarness
-rtemsTestHarness_SRCS += rtemsTestHarness.c rtemsConfig.c
-rtemsTestHarness_SRCS += $(testHarness_SRCS)
-TESTSPEC_RTEMS = rtemsTestHarness.$(MUNCH_SUFFIX); pvAccessAllTests
+# Build for vxWorks
+PROD_vxWorks = pvaTestHarness
+TESTSPEC_vxWorks = pvaTestHarness.$(MUNCH_SUFFIX); pvAccessAllTests
 
+# Build for RTEMS, with harness code & configuration
+PROD_RTEMS += pvaTestHarness
+pvaTestHarness_SRCS_RTEMS += rtemsTestHarness.c rtemsConfig.c
+TESTSPEC_RTEMS = pvaTestHarness.$(MUNCH_SUFFIX); pvAccessAllTests
+
+# Build test scripts for hosts
 TESTSCRIPTS_HOST += $(TESTS:%=%.t)
 
 include $(TOP)/configure/RULES
diff --git a/testApp/pvAccessAllTests.c b/testApp/pvAccessAllTests.c
index e9a299e..c4932fc 100644
--- a/testApp/pvAccessAllTests.c
+++ b/testApp/pvAccessAllTests.c
@@ -8,6 +8,7 @@
 #include <stdio.h>
 #include <epicsThread.h>
 #include <epicsUnitTest.h>
+#include <epicsExit.h>
 
 /* utils */
 int testAtomicBoolean(void);
@@ -31,5 +32,5 @@ void pvAccessAllTests(void)
     runTest(testCodec);
     runTest(testChannelAccess);
 
+    epicsExit(0);   /* Trigger test harness */
 }
-
diff --git a/testApp/rtemsTestHarness.c b/testApp/rtemsTestHarness.c
index 0b22320..18a9120 100644
--- a/testApp/rtemsTestHarness.c
+++ b/testApp/rtemsTestHarness.c
@@ -1,37 +1,12 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <rtems/rtems_bsdnet.h>
-#include <rtems/error.h>
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
 
-#include "rtemsNetworking.h"
+extern void pvAccessAllTests(void);
 
-#include <epicsExit.h>
-#include <osdTime.h>
-
-rtems_task
-Init (rtems_task_argument ignored)
+int main(int argc, char **argv)
 {
-  rtems_bsdnet_initialize_network ();
-  //rtems_bsdnet_show_if_stats ();
-
-  rtems_time_of_day timeOfDay;
-  if (rtems_clock_get(RTEMS_CLOCK_GET_TOD,&timeOfDay) != RTEMS_SUCCESSFUL) {
-    timeOfDay.year = 2014;
-    timeOfDay.month = 1;
-    timeOfDay.day = 1;
-    timeOfDay.hour = 0;
-    timeOfDay.minute = 0;
-    timeOfDay.second = 0;
-    timeOfDay.ticks = 0;
-
-    rtems_status_code ret = rtems_clock_set(&timeOfDay);
-    if (ret != RTEMS_SUCCESSFUL) {
-      printf("**** Can't set time %s\n", rtems_status_text(ret));
-    }
-  }
-  osdTimeRegister();
-  
-  extern void pvAccessAllTests(void);
-  pvAccessAllTests();
-  epicsExit(0);
+    pvAccessAllTests();  /* calls epicsExit(0) */
+    return 0;
 }