--- thin-provisioning-tools-0.2.8/persistent-data/buffer.h.orig

+++ thin-provisioning-tools-0.2.8/persistent-data/buffer.h

@@ -41,7 +41,7 @@ namespace persistent_data {

 	// guarantees.

 	//

 	// Alignment must be a power of two.

-	template <uint32_t Size = DEFAULT_BUFFER_SIZE, uint32_t Alignment = 512>

+	template <uint32_t Size = DEFAULT_BUFFER_SIZE, uint32_t Alignment = 4096>

 	class buffer : private boost::noncopyable {

 	public:

 		BOOST_STATIC_ASSERT((Alignment > 1) & !(Alignment & (Alignment - 1)));