Clean up /dev/mem now that pmap handles illegal aliases properly.  Don't allow access to device memory through /dev/mem, or try to make modifying kernel text through /dev/mem safe (it is not).
Clean up /dev/mem now that pmap handles illegal aliases properly.  Don't
allow access to device memory through /dev/mem, or try to make modifying
kernel text through /dev/mem safe (it is not).

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