A thought, can you try the edgy kernel with "iommu=off" on the kernel command line?
** Changed in: linux-source-2.6.17 (Ubuntu) Status: Confirmed => Needs Info -- wbsd.ko hangs amd64 kernel due to wrong DMA memory allocation https://launchpad.net/bugs/75084 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs