After reading madonion's linux guide I decided to enable write combining as they said it'll improve performance.
so I did: "echo \"base=0xf8000000 size=0x12800000 type=write-combining\" >> /proc/mtrr"
I did 128 since my geforce 4 is 128 mb. Anyways, when I checked the mtrr file, I found that there were two lines with 128mb write-combining enabled:
reg00: base=0x00000000 ( 0MB), size= 512MB: write-back, count=1
reg01: base=0xe8000000 (3712MB), size= 128MB: write-combining, count=1
reg05: base=0xe0000000 (3584MB), size= 128MB: write-combining, count=1
Should I be concerned? If so, how can I fix it.