I noticed today that
/var/log/dmesg contains several dozen lines with information about something called
*BAD*gran_size, followed by what appears to be an instruction for me:
[ 0.000000] mtrr_cleanup: can not find optimal value [ 0.000000] please specify mtrr_gran_size/mtrr_chunk_size
Do I need to do what it says? How would I?