diff --git a/.hgtags b/.hgtags
index 319a7c242534d4ec16808a8f0bde22bc34bed744..efd43031a06d835b597127abe552093df44eaf3b 100644
--- a/.hgtags
+++ b/.hgtags
@@ -330,3 +330,7 @@ dd23d4da3bcb2ffda58569e759feb7c119982973 DRTVWR-224
 29075f8c1abed53dcf195a59f61744e27a91108f DRTVWR-226
 fba99f381b8d4ad1b7b42fa4993b29998d95be18 DRTVWR-179
 49ed253c80bed7410e238eeab35a9f14cb034364 3.4.1-beta6
+468ca3268229011a59df99229b24315844b33d34 DRTVWR-227
+524da902713e8b60322640b9825101add4a7c497 3.4.1-beta7
+173c2809f9873499c4b9d6bc044ec941c954d3fb DRTVWR-228
+1dc94555582f52718834081e7659e973ae4521f7 3.4.1-beta8
diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index afaf36666876aac84354637155364afd3f355e4d..70ad10ad5529a3ec39228bac56a72d9b0e3a38d7 100644
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
@@ -252,21 +252,6 @@ U32 LLMemory::getAllocatedMemKB()
 	return sAllocatedMemInKB ;
 }
 
-void* ll_allocate (size_t size)
-{
-	if (size == 0)
-	{
-		llwarns << "Null allocation" << llendl;
-	}
-	void *p = malloc(size);
-	if (p == NULL)
-	{
-		LLMemory::freeReserve();
-		llerrs << "Out of memory Error" << llendl;
-	}
-	return p;
-}
-
 //----------------------------------------------------------------------------
 
 #if defined(LL_WINDOWS)
@@ -1365,7 +1350,7 @@ char* LLPrivateMemoryPool::allocate(U32 size)
 	//if the asked size larger than MAX_BLOCK_SIZE, fetch from heap directly, the pool does not manage it
 	if(size >= CHUNK_SIZE)
 	{
-		return (char*)malloc(size) ;
+		return (char*)ll_aligned_malloc_16(size) ;
 	}
 
 	char* p = NULL ;
@@ -1422,7 +1407,7 @@ char* LLPrivateMemoryPool::allocate(U32 size)
 			to_log = false ;
 		}
 
-		return (char*)malloc(size) ;
+		return (char*)ll_aligned_malloc_16(size) ;
 	}
 
 	return p ;
@@ -1441,7 +1426,7 @@ void LLPrivateMemoryPool::freeMem(void* addr)
 	
 	if(!chunk)
 	{
-		free(addr) ; //release from heap
+		ll_aligned_free_16(addr) ; //release from heap
 	}
 	else
 	{
@@ -1565,7 +1550,7 @@ LLPrivateMemoryPool::LLMemoryChunk* LLPrivateMemoryPool::addChunk(S32 chunk_inde
 
 	mReservedPoolSize += preferred_size + overhead ;
 
-	char* buffer = (char*)malloc(preferred_size + overhead) ;
+	char* buffer = (char*)ll_aligned_malloc_16(preferred_size + overhead) ;
 	if(!buffer)
 	{
 		return NULL ;
@@ -1633,7 +1618,7 @@ void LLPrivateMemoryPool::removeChunk(LLMemoryChunk* chunk)
 	mReservedPoolSize -= chunk->getBufferSize() ;
 	
 	//release memory
-	free(chunk->getBuffer()) ;
+	ll_aligned_free_16(chunk->getBuffer()) ;
 }
 
 U16 LLPrivateMemoryPool::findHashKey(const char* addr)
@@ -1977,7 +1962,7 @@ char* LLPrivateMemoryPoolManager::allocate(LLPrivateMemoryPool* poolp, U32 size,
 
 	if(!poolp)
 	{
-		p = (char*)malloc(size) ;
+		p = (char*)ll_aligned_malloc_16(size) ;
 	}
 	else
 	{
@@ -2006,7 +1991,7 @@ char* LLPrivateMemoryPoolManager::allocate(LLPrivateMemoryPool* poolp, U32 size)
 	}
 	else
 	{
-		return (char*)malloc(size) ;
+		return (char*)ll_aligned_malloc_16(size) ;
 	}
 }
 #endif
@@ -2031,7 +2016,7 @@ void  LLPrivateMemoryPoolManager::freeMem(LLPrivateMemoryPool* poolp, void* addr
 	{
 		if(!sPrivatePoolEnabled)
 		{
-			free(addr) ; //private pool is disabled.
+			ll_aligned_free_16(addr) ; //private pool is disabled.
 		}
 		else if(!sInstance) //the private memory manager is destroyed, try the dangling list
 		{
diff --git a/indra/llimage/llimage.cpp b/indra/llimage/llimage.cpp
index 4999f9886d4048ed54550085aaa03a8577c6a1f0..a88ac148efa306f98cbc2689d0c57bc971bdbeec 100644
--- a/indra/llimage/llimage.cpp
+++ b/indra/llimage/llimage.cpp
@@ -1582,6 +1582,12 @@ static void avg4_colors2(const U8* a, const U8* b, const U8* c, const U8* d, U8*
 	dst[1] = (U8)(((U32)(a[1]) + b[1] + c[1] + d[1])>>2);
 }
 
+void LLImageBase::setDataAndSize(U8 *data, S32 size)
+{ 
+	ll_assert_aligned(data, 16);
+	mData = data; mDataSize = size; 
+}	
+
 //static
 void LLImageBase::generateMip(const U8* indata, U8* mipdata, S32 width, S32 height, S32 nchannels)
 {
diff --git a/indra/llimage/llimage.h b/indra/llimage/llimage.h
index b6caa730f19a2dede856c28f6246909140fc47ac..6cb1226da09748e93d5a77c94f854767d733aba5 100644
--- a/indra/llimage/llimage.h
+++ b/indra/llimage/llimage.h
@@ -147,7 +147,7 @@ class LLImageBase : public LLThreadSafeRefCount
 
 protected:
 	// special accessor to allow direct setting of mData and mDataSize by LLImageFormatted
-	void setDataAndSize(U8 *data, S32 size) { mData = data; mDataSize = size; }	
+	void setDataAndSize(U8 *data, S32 size);
 	
 public:
 	static void generateMip(const U8 *indata, U8* mipdata, int width, int height, S32 nchannels);
diff --git a/indra/newview/lltexlayer.cpp b/indra/newview/lltexlayer.cpp
index 467115c92849b6ad9bc2c8e7d637c752ba9d6b8e..ad09af6594e7a7fdefa92f353197e921c4729d89 100644
--- a/indra/newview/lltexlayer.cpp
+++ b/indra/newview/lltexlayer.cpp
@@ -510,7 +510,13 @@ void LLTexLayerSetBuffer::doUpload()
 			BOOL valid = FALSE;
 			LLPointer<LLImageJ2C> integrity_test = new LLImageJ2C;
 			S32 file_size = 0;
-			U8* data = LLVFile::readFile(gVFS, asset_id, LLAssetType::AT_TEXTURE, &file_size);
+			
+			//data buffer MUST be allocated using LLImageBase
+			LLVFile file(gVFS, asset_id, LLAssetType::AT_TEXTURE);
+			file_size = file.getSize();
+			U8* data = integrity_test->allocateData(file_size);
+			file.read(data, file_size);
+			
 			if (data)
 			{
 				valid = integrity_test->validate(data, file_size); // integrity_test will delete 'data'