I seem to remember this error message a long time ago on my dual opteron, but then it went away. Now it has reappeared with the latest kernel update: Checking aperture... CPU 0: aperture @ c000000 size 32 MB Aperture too small (32 MB) No AGP bridge found Your BIOS doesn't leave a aperture memory hole Please enable the IOMMU option in the BIOS setup This costs you 64 MB of RAM Mapping aperture over 65536 KB of RAM @ c000000 Memory: 6129976k/7340032k available (2491k kernel code, 161028k reserved, 1390k data, 332k init) SLUB: Genslabs=12, HWalign=64, Order=0-1, MinObjects=4, CPUs=4, Nodes=2 Calibrating delay using timer specific routine.. 4021.83 BogoMIPS (lpj=2010919) lspci output --> http://consultcsg.com/lspci.out full dmesg output --> http://consultcsg.com/dmesg.out
