* Remove KTR_CPUMASK, it is not correct to set this
* Remove KTR_CPUMASK, it is not correct to set this

* Explain why 32768 entries is usually not enough

* Increase the scaling ratio to 10 to deal with 32-bit overflows that
  can occur in calculating the canvas offsets

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