Prior to r188331 a map entry's last read offset was only updated by a hard fault.  In r188331 this update was relocated because of synchronization changes to a place where it would occur on both hard and soft faults.  This change again restricts the update to hard faults.
Prior to r188331 a map entry's last read offset was only updated by a hard
fault.  In r188331 this update was relocated because of synchronization
changes to a place where it would occur on both hard and soft faults.  This
change again restricts the update to hard faults.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase