diff -r a179b74831c9 -r c1f20ce4abcf kernel/eka/memmodel/epoc/flexible/mmu/arm/xmmu.cpp
--- a/kernel/eka/memmodel/epoc/flexible/mmu/arm/xmmu.cpp	Thu Aug 19 11:14:22 2010 +0300
+++ b/kernel/eka/memmodel/epoc/flexible/mmu/arm/xmmu.cpp	Tue Aug 31 16:34:26 2010 +0300
@@ -298,7 +298,8 @@
 			// we have an L1 data cache...
 			TUint32 csir = InternalCache::SizeIdRegister(0,0);
 			TUint sets = ((csir>>13)&0x7fff)+1;
-			TUint ways = ((csir>>3)&0x3ff)+1;
+			TUint ways = ((csir>>3)&0x3ff);
+			ways+=1;
 			TUint lineSizeShift = (csir&7)+4;
 			// assume L1 data cache is VIPT and alias checks broken and so we need data cache colouring...
 			dColourCount = (sets<<lineSizeShift)>>KPageShift;
@@ -312,7 +313,8 @@
 			// we have a separate L1 instruction cache...
 			TUint32 csir = InternalCache::SizeIdRegister(1,0);
 			TUint sets = ((csir>>13)&0x7fff)+1;
-			TUint ways = ((csir>>3)&0x3ff)+1;
+			TUint ways = ((csir>>3)&0x3ff);
+			ways+=1;
 			TUint lineSizeShift = (csir&7)+4;
 			iColourCount = (sets<<lineSizeShift)>>KPageShift;
 			TRACEB(("L1ICache = 0x%x,0x%x,%d colourCount=%d",sets,ways,lineSizeShift,(sets<<lineSizeShift)>>KPageShift));
@@ -902,6 +904,15 @@
 	if(TUint(aAddr^KIPCAlias)<TUint(KIPCAliasAreaSize))
 		return KErrBadDescriptor; // prevent access to alias region
 
+#ifdef _DEBUG
+	if (KDebugNum(KFORCEKUPAGEFAULTS))
+		{
+		TInt r = ThePager.FlushRegion(aProcess, aAddr, aSize);
+		if (r != KErrNone)
+			return r;
+		}
+#endif
+	
 	// Grab the mmu lock before opening a reference on os asid so that this thread 
 	// is in an implicit critical section and therefore can't leak the reference by
 	// dying before iAliasLinAddr is set.