diff -r ef2a444a7410 -r b3a1d9898418 kernel/eka/memmodel/epoc/flexible/mmu/mm.cpp
--- a/kernel/eka/memmodel/epoc/flexible/mmu/mm.cpp	Mon May 03 13:47:38 2010 +0300
+++ b/kernel/eka/memmodel/epoc/flexible/mmu/mm.cpp	Fri May 14 17:13:29 2010 +0300
@@ -785,6 +785,30 @@
 	}
 
 
+DMemoryMapping* MM::FindMappingInProcess(DMemModelProcess* aProcess, TLinAddr aAddr, TUint aSize, 
+										 TUint& aOffsetInMapping, TUint& aInstanceCount)
+	{
+	if(aAddr>=KGlobalMemoryBase)
+		{
+		// Address in global region, so look it up in kernel's address space...
+		return MM::FindMappingInAddressSpace(KKernelOsAsid, aAddr, aSize, aOffsetInMapping, aInstanceCount);
+		}
+
+	// Address in thread's process address space so open a reference to its os asid
+	// so that it remains valid for FindMappingInAddressSpace() call.
+	TInt osAsid = aProcess->TryOpenOsAsid();
+	if (osAsid < 0)
+		{// The process no longer owns an address space so can't have any mappings.
+		return NULL;
+		}
+
+	DMemoryMapping* r = MM::FindMappingInAddressSpace(osAsid, aAddr, aSize, aOffsetInMapping, aInstanceCount);
+
+	aProcess->CloseOsAsid();
+	return r;
+	}
+
+
 DMemoryMapping* MM::FindMappingInAddressSpace(	TUint aOsAsid, TLinAddr aAddr, TUint aSize, 
 												TUint& aOffsetInMapping, TUint& aInstanceCount)
 	{
@@ -1117,5 +1141,3 @@
 		attr&EMemoryAttributeUseECC
 		);
 	}
-
-