diff --git a/common/JackGraphManager.h b/common/JackGraphManager.h
index e2732acd..7e5337ae 100644
--- a/common/JackGraphManager.h
+++ b/common/JackGraphManager.h
@@ -33,13 +33,13 @@ namespace Jack
 /*!
 \brief Graph manager: contains the connection manager and the port array.
 */
-
+    
 class JackGraphManager : public JackShmMem, public JackAtomicState<JackConnectionManager>
 {
 
     private:
 
-        JackPort fPortArray[PORT_NUM];
+        JackPort fPortArray[];
         JackClientTiming fClientTiming[CLIENT_NUM];
 
         jack_port_id_t AllocatePortAux(int refnum, const char* port_name, const char* port_type, JackPortFlags flags);
diff --git a/common/JackServer.cpp b/common/JackServer.cpp
index 65c217a5..d316cfb3 100644
--- a/common/JackServer.cpp
+++ b/common/JackServer.cpp
@@ -47,7 +47,11 @@ JackServer::JackServer(bool sync, bool temporary, long timeout, bool rt, long pr
     JackGlobals::InitServer();
     for (int i = 0; i < CLIENT_NUM; i++)
         fSynchroTable[i] = JackGlobals::MakeSynchro();
-    fGraphManager = new JackGraphManager();
+    
+    // Use "placement" new for graph manager
+    void* shared_mem = JackShmMem::operator new(PORT_NUM * 1*sizeof(JackPort) + sizeof(JackGraphManager));
+    fGraphManager = new(shared_mem) JackGraphManager();
+    
     fEngineControl = new JackEngineControl(sync, temporary, timeout, rt, priority, verbose, server_name);
     fEngine = new JackLockedEngine(new JackEngine(fGraphManager, fSynchroTable, fEngineControl));
     fFreewheelDriver = new JackThreadedDriver(new JackFreewheelDriver("freewheel", fEngine, fSynchroTable));
diff --git a/common/JackShmMem.cpp b/common/JackShmMem.cpp
index 45be8ac9..56e838f5 100644
--- a/common/JackShmMem.cpp
+++ b/common/JackShmMem.cpp
@@ -28,6 +28,12 @@ namespace Jack
 unsigned int JackShmMem::fSegmentNum = 0;
 jack_shm_info_t JackShmMem::gInfo;
 size_t JackMem::gSize = 0;
+    
+void* JackShmMem::operator new(size_t size, void* memory)
+{
+    jack_log("JackShmMem::new placement size = %ld", size);
+    return memory;
+}
 
 void* JackShmMem::operator new(size_t size)
 {
diff --git a/common/JackShmMem.h b/common/JackShmMem.h
index 087d887c..76fe7f0c 100644
--- a/common/JackShmMem.h
+++ b/common/JackShmMem.h
@@ -105,6 +105,7 @@ class JackShmMem
     public:
 
         void* operator new(size_t size);
+        void* operator new(size_t size, void* memory);
         void operator delete(void* p, size_t size);
 
         JackShmMem()