dmesg | grep -i mtrr
me renvoie :
[ 0.005817] MTRR default type: uncachable
[ 0.005818] MTRR fixed ranges enabled:
[ 0.005823] MTRR variable ranges enabled:
[ 0.243589] mtrr: your CPUs had inconsistent variable MTRR settings
[ 0.243589] mtrr: probably your BIOS does not setup all CPUs.
[ 0.243589] mtrr: corrected configuration.