Managed to sort out the problem by booting both the installer and the installed kernel 2.6.27-X with the parameter iommu=soft. iommu=off did not work. Attached you'll find a lspci. Hope it helps. I've seen the guys at Red Hat updated their kernel in Red Hat Enterprise 9 with a workaround for this issue, which is related to MSI (IBM's Calgary implementation) and not the disk controller by LSI.
Managed to sort out the problem by booting both the installer and the installed kernel 2.6.27-X with the parameter iommu=soft. iommu=off did not work. Attached you'll find a lspci. Hope it helps. I've seen the guys at Red Hat updated their kernel in Red Hat Enterprise 9 with a workaround for this issue, which is related to MSI (IBM's Calgary implementation) and not the disk controller by LSI.