[CentOS] data corruption on AMD AM2 systems with 4GB of RAM or more

[Bart Schaefer]

On 5/30/07, Feizhou <feizhou at graffiti.net> wrote:
> Bart Schaefer wrote:
> > We have not tried building a kernel, nor installing any drivers or
> > other kernel-related software other than that available from the
> > CentOS project repos.  However, the machine is fully yum-updated.
>
> So you also do not have the IOMMU enabled in your boxes?

% dmesg | grep -i iommu
Please enable the IOMMU option in the BIOS setup
PCI-DMA: using GART IOMMU.
PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture