diff --git a/common/include/lima/MemUtils.h b/common/include/lima/MemUtils.h
index 00ea19444..a07142219 100644
--- a/common/include/lima/MemUtils.h
+++ b/common/include/lima/MemUtils.h
@@ -41,6 +41,8 @@ void LIMACORE_API ClearBuffer(void *ptr, int nb_concat_frames, const FrameDim& f
 
 struct LIMACORE_API Allocator
 {
+	DEB_STRUCT_NAMESPC(DebModCommon, "MemUtils", "Allocator");
+
 	struct Data {
 		virtual ~Data() = default;
 	};
@@ -54,9 +56,10 @@ struct LIMACORE_API Allocator
 
 	Allocator(Allocator&& o) : m_ref_count(0)
 	{
+		DEB_MEMBER_FUNCT();
+
 		if (o.m_ref_count != 0)
-			throw LIMA_COM_EXC(InvalidValue,
-					   "Moved-from Allocator is not empty");
+			DEB_ERROR() << "Moved-from Allocator is not empty";
 	}
 
 	// Allocate a buffer of a given size and eventually return
@@ -102,9 +105,10 @@ struct LIMACORE_API Allocator
 
 	virtual ~Allocator()
 	{
+		DEB_MEMBER_FUNCT();
+
 		if (m_ref_count != 0)
-			std::cerr << "Error: destroying non-empty Allocator"
-				  << std::endl;
+			DEB_ERROR() << "Error: destroying non-empty Allocator";
 	}
 
 	// The real resource management counter, triggered by Ref
diff --git a/common/include/lima/VideoUtils.h b/common/include/lima/VideoUtils.h
index 05f7635a8..ab30156dd 100644
--- a/common/include/lima/VideoUtils.h
+++ b/common/include/lima/VideoUtils.h
@@ -5,6 +5,7 @@
 #include <iostream>
 
 #include "lima/Constants.h"
+#include "lima/Exceptions.h"
 
 #include "processlib/Data.h"
 
@@ -35,7 +36,14 @@ namespace lima
     inline void alloc(int size)
     {
       if(!buffer || double(size) > this->size())
-	buffer = (char*)realloc(buffer,size);
+      {
+        char* tmp = (char*)realloc(buffer,size);
+        if (tmp == NULL)
+          throw LIMA_COM_EXC(Error, "Error in realloc: ")
+            << "NULL pointer returned";
+        else
+            buffer = tmp;
+      }
     }
     inline void setParams(int fNumber,int w,int h,VideoMode m)
     {
diff --git a/common/src/Exceptions.cpp b/common/src/Exceptions.cpp
index f7c29c3ef..baaa7503c 100644
--- a/common/src/Exceptions.cpp
+++ b/common/src/Exceptions.cpp
@@ -82,6 +82,9 @@ Exception::Exception(Layer layer, ErrorType err_type, const string& err_desc,
 	if (deb_proxy)
 		*deb_proxy << "Exception(" << getErrType() << "): " 
 			   << getErrDesc();
+	else
+		std::cerr << "********* Exception(" << getErrType() << "): " 
+			   << getErrDesc();
 }
 
 Layer Exception::getLayer() const
@@ -146,4 +149,3 @@ ostream& lima::operator <<(ostream& os, const Exception& e)
 {
 	return os << e.getErrMsg();
 }
-
diff --git a/common/src/MemUtils.cpp b/common/src/MemUtils.cpp
index 1ff59eb63..8e6b8a331 100644
--- a/common/src/MemUtils.cpp
+++ b/common/src/MemUtils.cpp
@@ -103,7 +103,7 @@ int lima::GetDefMaxNbBuffers(const FrameDim& frame_dim)
 void lima::ClearBuffer(void *ptr, int nb_concat_frames, 
 		       const FrameDim& frame_dim)
 {
-	memset(ptr, 0, nb_concat_frames * frame_dim.getMemSize());
+	memset(ptr, 0, nb_concat_frames * size_t(frame_dim.getMemSize()));
 }
 
 Allocator *Allocator::defaultAllocator()
diff --git a/common/src/ThreadUtils.cpp b/common/src/ThreadUtils.cpp
index 5893ab430..2942950c6 100644
--- a/common/src/ThreadUtils.cpp
+++ b/common/src/ThreadUtils.cpp
@@ -184,7 +184,7 @@ bool Cond::wait(double timeout)
       struct timeval now;
       struct timespec waitTimeout;
       gettimeofday(&now,NULL);
-      waitTimeout.tv_sec = now.tv_sec + long(timeout);
+      waitTimeout.tv_sec = now.tv_sec + time_t(timeout);
       waitTimeout.tv_nsec = (now.tv_usec * 1000) + 
 	long((timeout - long(timeout)) * 1e9);
       if(waitTimeout.tv_nsec >= 1000000000L) // Carry
@@ -241,10 +241,8 @@ Thread::ExceptionCleanUp::~ExceptionCleanUp()
 	m_thread.m_exception_handled = true;
 }
 
-Thread::Thread()
+Thread::Thread() : m_thread(NULL), m_started(false), m_finished(false), m_exception_handled(false), m_tid(0)
 {
-	m_started = m_finished = m_exception_handled = false;
-	m_tid = 0;
 	pthread_attr_init(&m_thread_attr);
 }
 
diff --git a/control/include/lima/CtAccumulation.h b/control/include/lima/CtAccumulation.h
index dc482503c..be408aaf7 100644
--- a/control/include/lima/CtAccumulation.h
+++ b/control/include/lima/CtAccumulation.h
@@ -70,7 +70,7 @@ namespace lima
 			"Control");
       friend class CtAccumulation;
     public:
-      ThresholdCallback() {};
+      ThresholdCallback() : m_max(0) {};
       virtual ~ThresholdCallback() {};
 
       int m_max;
diff --git a/control/include/lima/CtConfig.h b/control/include/lima/CtConfig.h
index f46b056d9..c8aded20e 100644
--- a/control/include/lima/CtConfig.h
+++ b/control/include/lima/CtConfig.h
@@ -103,7 +103,7 @@ namespace lima
 
   private:
     typedef std::map<std::string,ModuleTypeCallback*> ModuleMap;
-    CtConfig(const CtConfig &other): m_ctrl(other.m_ctrl) {}
+    CtConfig(const CtConfig &other): m_ctrl(other.m_ctrl), m_config(NULL) {}
 
     CtControl&		m_ctrl;
     libconfig::Config*	m_config;
diff --git a/control/include/lima/CtSaving.h b/control/include/lima/CtSaving.h
index 13b3ffc3c..ee373f61f 100644
--- a/control/include/lima/CtSaving.h
+++ b/control/include/lima/CtSaving.h
@@ -267,10 +267,10 @@ class LIMACORE_API CtSaving
 		typedef std::map<long, FrameParameters> Frame2Params;
 		struct Handler
 		{
-			Handler() : m_handler(NULL) {}
+			Handler() : m_handler(NULL), m_nb_frames(0) {}
 
 			void* m_handler;
-			int			m_nb_frames;
+			int   m_nb_frames;
 		};
 		struct cmpParameters
 		{
@@ -518,12 +518,14 @@ class LIMACORE_API CtSaving
 		void _prepare();
 
 		enum ContainerStatus {
-		      Init, Prepare, Open,
+		      Init, Preparing, Prepared, Open,
 		};
 
 		CtSaving&		m_saving;
 		int			m_idx;
 
+		// protect m_cnt_status, ensure atomic Preparing
+		Cond			m_cond;
 		ContainerStatus		m_cnt_status;
 		SaveContainer*		m_save_cnt;
 		_SaveCBK*		m_saving_cbk;
@@ -533,6 +535,7 @@ class LIMACORE_API CtSaving
 		bool			m_pars_dirty_flag;
 		bool			m_active;
 		_CompressionCBK*	m_compression_cbk;
+
 	};
 	friend class Stream;
 
diff --git a/control/include/lima/CtSaving_Compression.h b/control/include/lima/CtSaving_Compression.h
index 7d8441fb4..8893e3177 100644
--- a/control/include/lima/CtSaving_Compression.h
+++ b/control/include/lima/CtSaving_Compression.h
@@ -92,7 +92,7 @@ static const LZ4F_preferences_t lz4_preferences = {
 		  int framesPerFile,const CtSaving::HeaderMap &header);
    ~FileLz4Compression();
    virtual void process(Data &aData);
-   void _compression(const char *src,int size,ZBufferList& return_buffers);   
+   void _compression(const char *src,size_t size,ZBufferList& return_buffers);
  };
 #endif // WITH_LZ4_COMPRESSION
 
diff --git a/control/software_operation/src/SoftOpId.cpp b/control/software_operation/src/SoftOpId.cpp
index 7e2ce0d0b..e5abb3e91 100644
--- a/control/software_operation/src/SoftOpId.cpp
+++ b/control/software_operation/src/SoftOpId.cpp
@@ -864,7 +864,7 @@ void SoftOpPeakFinder::setComputingMode(ComputingMode aComputingMode)
 
 void SoftOpPeakFinder::getComputingMode(ComputingMode &aComputingMode) const
 {
-  Tasks::PeakFinderTask::ComputingMode aMode;
+  Tasks::PeakFinderTask::ComputingMode aMode = Tasks::PeakFinderTask::MAXIMUM;
   for(NameMapConstIterator i = m_task_manager.begin(); i != m_task_manager.end();++i) {
     i->second.second->getComputingMode(aMode); 
   }
diff --git a/control/src/CtControl.cpp b/control/src/CtControl.cpp
index 76fd776a1..6b9296c0a 100644
--- a/control/src/CtControl.cpp
+++ b/control/src/CtControl.cpp
@@ -172,6 +172,8 @@ class CtControl::ImageStatusThread : public Thread
   
 private:
   struct ChangeEvent {
+
+    ChangeEvent() : force(false), finished(NULL) {}
     ImageStatus status;
     bool force;
     bool *finished;
@@ -388,6 +390,14 @@ CtControl::CtControl(HwInterface *hw) :
 CtControl::~CtControl()
 {
   DEB_DESTRUCTOR();
+  
+  Status aStatus;
+  getStatus(aStatus);
+  if(aStatus.AcquisitionStatus == AcqRunning)
+  {
+    DEB_WARNING() << "Acquisition is still running, stopping acquisition";
+    stopAcq();
+  }
 
   DEB_TRACE() << "Waiting for all threads to finish their tasks";
   PoolThreadMgr& pool_thread_mgr = PoolThreadMgr::get();
diff --git a/control/src/CtSaving.cpp b/control/src/CtSaving.cpp
index 89e60ff5e..8bd4bed1b 100755
--- a/control/src/CtSaving.cpp
+++ b/control/src/CtSaving.cpp
@@ -26,7 +26,7 @@
 #include <unistd.h>
 #include <numeric>
 
-#ifdef __linux__ 
+#ifdef __linux__
 #include <dirent.h>
 #include <sys/statvfs.h>
 #else
@@ -283,10 +283,14 @@ void CtSaving::Stream::prepare()
 {
 	DEB_MEMBER_FUNCT();
 
-	if (m_cnt_status == Open)
-		m_save_cnt->close();
-
-	m_cnt_status = Init;
+	{
+		AutoMutex lock(m_cond.mutex());
+		if (m_cnt_status == Open) {
+			m_cnt_status = Init;
+			AutoMutexUnlock u(lock);
+			m_save_cnt->close();
+		}
+	}
 
 	updateParameters();
 
@@ -297,27 +301,43 @@ void CtSaving::Stream::prepare()
 void CtSaving::Stream::_prepare()
 {
 	DEB_MEMBER_FUNCT();
+
 	checkWriteAccess();
 	m_save_cnt->prepare(m_saving.m_ctrl);
-	m_cnt_status = Prepare;
+	AutoMutex lock(m_cond.mutex());
+	m_cnt_status = Prepared;
 }
 
 void CtSaving::Stream::close()
 {
 	m_save_cnt->close();
+
+	AutoMutex lock(m_cond.mutex());
 	m_cnt_status = Init;
 }
 
 void CtSaving::Stream::clear()
 {
 	m_save_cnt->clear();
+
+	AutoMutex lock(m_cond.mutex());
 	m_cnt_status = Init;
 }
 
 void CtSaving::Stream::prepareWrittingFrame(long frame_nr)
 {
-	if (m_cnt_status == Init)
-		_prepare();
+	{
+		AutoMutex lock(m_cond.mutex());
+		if (m_cnt_status == Init) {
+			m_cnt_status = Preparing;
+			{
+				AutoMutexUnlock u(lock);
+				_prepare();
+			}
+			m_cond.broadcast();
+		} else while (m_cnt_status == Preparing)
+			m_cond.wait();
+	}
 	m_save_cnt->prepareWrittingFrame(frame_nr);
 }
 
@@ -356,14 +376,14 @@ void CtSaving::Stream::createSaveContainer()
 #ifndef WITH_NXS_SAVING
 		THROW_CTL_ERROR(NotSupported) << "Lima is not compiled with the nxs "
 			"saving option, not managed";
-#endif        
+#endif
 		goto common;
 
 	case FITS:
 #ifndef WITH_FITS_SAVING
 		THROW_CTL_ERROR(NotSupported) << "Lima is not compiled with the fits "
 			"saving option, not managed";
-#endif        
+#endif
 		goto common;
 	case EDFGZ:
 #ifndef WITH_Z_COMPRESSION
@@ -473,6 +493,7 @@ void CtSaving::Stream::createSaveContainer()
 		m_save_cnt->setMaxConcurrentWritingTask(nb_writing_thread);
 	m_save_cnt->setEnableLogStat(enable_log_stat);
 
+	AutoMutex lock(m_cond.mutex());
 	m_cnt_status = Init;
 }
 
@@ -481,6 +502,8 @@ void CtSaving::Stream::writeFile(Data& data, HeaderMap& header)
 	DEB_MEMBER_FUNCT();
 
 	m_save_cnt->writeFile(data, header);
+
+	AutoMutex lock(m_cond.mutex());
 	m_cnt_status = Open;
 }
 
@@ -1040,7 +1063,7 @@ void CtSaving::_ReadImage(Data& image, int frameNumber)
 bool CtSaving::_allStreamReady(long frame_nr)
 {
 	DEB_MEMBER_FUNCT();
-	
+
 	bool ready_flag = true;
 	for (int s = 0; ready_flag && s < m_nb_stream; ++s)
 	{
@@ -1048,8 +1071,8 @@ bool CtSaving::_allStreamReady(long frame_nr)
 		if (stream.isActive())
 			ready_flag = stream.isReady(frame_nr);
 	}
-	
-	DEB_RETURN() << DEB_VAR1(ready_flag);	
+
+	DEB_RETURN() << DEB_VAR1(ready_flag);
 	return ready_flag;
 }
 void CtSaving::_waitWritingThreads()
@@ -1564,8 +1587,8 @@ void CtSaving::frameReady(Data& aData)
 
 	aLock.unlock();
 
-	TaskType task_type = m_need_compression ? Compression : Save;	
-	TaskList task_list;	
+	TaskType task_type = m_need_compression ? Compression : Save;
+	TaskList task_list;
 	_getTaskList(task_type, frame_nr, task_header, task_list);
 
 	_postTaskList(aData, task_list,
@@ -1760,7 +1783,7 @@ void CtSaving::writeFrame(int aFrameNumber, int aNbFrames, bool synchronous)
 
 		managed_mode = getManagedMode();
 	}
-	
+
 	if (managed_mode == Hardware) {
 		int hw_cap = m_hwsaving->getCapabilities();
 		if (hw_cap & HwSavingCtrlObj::MANUAL_WRITE)
@@ -1876,7 +1899,7 @@ void CtSaving::_compressionFinished(Data& aData, Stream& stream)
 	_takeHeader(header_it, header, false);
 
 	aLock.unlock();
-	
+
 	TaskList task_list;
 	_getTaskList(Save, frame_nr, header, task_list);
 
@@ -2045,7 +2068,7 @@ void CtSaving::_prepare()
 void CtSaving::_stop()
 {
 	DEB_MEMBER_FUNCT();
-	
+
 	// Get the last image acquired counter
 	CtControl::ImageStatus img_status;
 	m_ctrl.getImageStatus(img_status);
@@ -2058,7 +2081,7 @@ void CtSaving::_stop()
 			// Update the number of frames so that SaveContainer::writeFile() will properly
 			// call SaveContainer::close()
 			stream.updateNbFrames(img_status.LastImageAcquired + 1);
-			
+
 			// Clean up the frame parameters so that _allStreamReady() return true
 			stream.cleanRemainingFrames(img_status.LastImageAcquired + 1);
 		}
@@ -2070,7 +2093,7 @@ void CtSaving::_stop()
 void CtSaving::_close()
 {
 	DEB_MEMBER_FUNCT();
-	
+
 	if (_allStreamReady(-1))
 	{
 		for (int s = 0; s < m_nb_stream; ++s)
@@ -2132,7 +2155,7 @@ void CtSaving::SaveContainer::writeFile(Data& aData, HeaderMap& aHeader)
 	catch (std::ios_base::failure & error)
 	{
 		DEB_ERROR() << "Write failed :" << error.what();
-#ifdef __linux__ 
+#ifdef __linux__
 		/**       struct statvfs {
 		  unsigned long  f_bsize;    // file system block size
 		  unsigned long  f_frsize;   //fragment size
@@ -2499,7 +2522,7 @@ void CtSaving::SaveContainer::updateNbFrames(long last_acquired_frame_nr)
 {
 	DEB_MEMBER_FUNCT();
 	DEB_TRACE() << DEB_VAR1(last_acquired_frame_nr);
-	
+
 	AutoMutex lock(m_cond.mutex());
 	m_nb_frames_to_write = last_acquired_frame_nr;
 }
@@ -2531,7 +2554,7 @@ bool CtSaving::SaveContainer::isReady(long frame_nr) const
 		else if (it->second.m_threadable)
 		{
 			DEB_TRACE() << DEB_VAR2(m_running_writing_task, m_max_writing_task);
-			
+
 			ready = (m_running_writing_task + 1 <= m_max_writing_task);
 		}
 		else
@@ -2574,7 +2597,7 @@ void CtSaving::SaveContainer::setReady(long frame_nr)
 void CtSaving::SaveContainer::prepareWrittingFrame(long frame_nr)
 {
 	DEB_MEMBER_FUNCT();
-	
+
 	AutoMutex lock(m_cond.mutex());
 	Frame2Params::iterator i = m_frame_params.find(frame_nr);
 	if (i == m_frame_params.end())
diff --git a/control/src/CtSaving_Compression.cpp b/control/src/CtSaving_Compression.cpp
index 75220aacf..0d98509da 100644
--- a/control/src/CtSaving_Compression.cpp
+++ b/control/src/CtSaving_Compression.cpp
@@ -158,24 +158,24 @@ void FileLz4Compression::process(Data &aData)
   m_container._setBuffer(aData.frameNumber,std::move(aBufferListPt));
 }
 
-void FileLz4Compression::_compression(const char *src,int size,
+void FileLz4Compression::_compression(const char *src, size_t size,
 				      ZBufferList& return_buffers)
 {
   DEB_MEMBER_FUNCT();
   
-  int buffer_size = LZ4F_compressFrameBound(size,&lz4_preferences);
+  size_t buffer_size = LZ4F_compressFrameBound(size,&lz4_preferences);
   buffer_size += LZ4_HEADER_SIZE + LZ4_FOOTER_SIZE;
   
   return_buffers.emplace_back(buffer_size);
   ZBuffer& newBuffer = return_buffers.back();
   char* buffer = (char*)newBuffer.ptr();
   
-  int offset = LZ4F_compressBegin(m_ctx,buffer,
+  size_t offset = LZ4F_compressBegin(m_ctx,buffer,
 				  buffer_size,&lz4_preferences);
   if(LZ4F_isError(offset))
     THROW_CTL_ERROR(Error) << "Failed to start compression: " << DEB_VAR1(offset);
 
-  int error_code = LZ4F_compressUpdate(m_ctx,buffer + offset,buffer_size - offset,
+  size_t error_code = LZ4F_compressUpdate(m_ctx,buffer + offset,buffer_size - offset,
 				       src,size,NULL);
   if(LZ4F_isError(error_code))
     THROW_CTL_ERROR(Error) << "Compression Failed: " 
diff --git a/control/src/CtSaving_Hdf5.cpp b/control/src/CtSaving_Hdf5.cpp
index dd0e962fb..1ba0de9b5 100644
--- a/control/src/CtSaving_Hdf5.cpp
+++ b/control/src/CtSaving_Hdf5.cpp
@@ -43,6 +43,7 @@ struct SaveContainerHdf5::_File
 		m_in_append(false),
 		m_dataset_extended(false),
 		m_entry_index(0),
+		m_nb_frames(0),
 		m_frame_cnt(0)
 	{}
 
@@ -198,6 +199,9 @@ SaveContainerHdf5::~SaveContainerHdf5() {
 void SaveContainerHdf5::_prepare(CtControl& control) {
 	DEB_MEMBER_FUNCT();
 
+	// HDF5 garbage collecor
+	H5garbage_collect();
+
 	m_ct_image = control.image();
 	m_ct_acq = control.acquisition();
 	m_hw_int = control.hwInterface();
@@ -361,13 +365,13 @@ void* SaveContainerHdf5::_open(const std::string &filename, std::ios_base::openm
 			time_t now;
 			time(&now);
 			char buf[sizeof("2011-10-08T07:07:09Z")];
-#ifdef WIN32
 			struct tm gmtime_now;
+#ifdef WIN32
 			gmtime_s(&gmtime_now, &now);
-			strftime(buf, sizeof(buf), "%FT%TZ", &gmtime_now);
 #else
-			strftime(buf, sizeof(buf), "%FT%TZ", gmtime(&now));
+			gmtime_r(&now, &gmtime_now);
 #endif
+			strftime(buf, sizeof(buf), "%FT%TZ", &gmtime_now);
 			string stime = string(buf);
 			write_h5_attribute(file->m_file,"file_time",stime);
 			
@@ -526,13 +530,13 @@ void SaveContainerHdf5::_close(void* f) {
 		time_t now;
 		time(&now);
 		char buf[sizeof("2011-10-08T07:07:09Z")];
-#ifdef WIN32
 		struct tm gmtime_now;
+#ifdef WIN32
 		gmtime_s(&gmtime_now, &now);
-		strftime(buf, sizeof(buf), "%FT%TZ", &gmtime_now);
 #else
-		strftime(buf, sizeof(buf), "%FT%TZ", gmtime(&now));
+		gmtime_r(&now, &gmtime_now);
 #endif
+		strftime(buf, sizeof(buf), "%FT%TZ", &gmtime_now);
 		string etime = string(buf);
 		write_h5_dataset(file->m_entry,"end_time",etime);
 	}
diff --git a/hardware/src/HwBufferMgr.cpp b/hardware/src/HwBufferMgr.cpp
index 9bb0f59fc..7ef4007d2 100644
--- a/hardware/src/HwBufferMgr.cpp
+++ b/hardware/src/HwBufferMgr.cpp
@@ -113,8 +113,8 @@ void SoftBufferAllocMgr::allocBuffers(int nb_buffers,
 
 	try {
 		BufferList& bl = m_buffer_list;
-		if (to_alloc > 0) {
-			bl.resize(nb_buffers, MemBuffer(m_allocator));
+		bl.resize(nb_buffers, MemBuffer(m_allocator));
+		if (to_alloc > 0) {			
 			DEB_TRACE() << "Allocating " << to_alloc << " buffers";
 			for (int i = curr_nb_buffers; i < nb_buffers; i++)
 				bl[i].alloc(frame_size);