> >> > >> echo "base=0xf8000000 size=0x40000000 type=write-combining" >| /proc/mtrr > > Sorry if i'm saying something stupid, but did you check if /proc/mterr > can actually be written? > > You could check by invoking "touch /proc/mterr" You mean /proc/mtrr right? 'touch /proc/mtrr' executes without any output. - Grant