https://bugs.freedesktop.org/show_bug.cgi?id=40103
--- Comment #7 from Patrik Kullman <[email protected]> 2011-09-07 05:21:25 PDT --- Created an attachment (id=50959) --> (https://bugs.freedesktop.org/attachment.cgi?id=50959) dmesg with ttm dma pool 1.7 patchset After discussion with Dave Airlie he concluded that the chipset (Intel G31 in my case) doesn't have DMAR / IOMMU and that systems with 4GB or more memory enabled SWIOTLB in those cases, which was the problem. However, booting with mem=3G or with physical memory below 4GB did not solve the problem. Disabling iommu with iommu=off only disabled the SATA-support without solving the Radeon-issue. Booting with less than 4GB of memory and iommu=off did not disable SATA-support but did not solve the issue either. I finally tried compiling the Oneiric kernel with the TTM DMA Pool 1.7 patchset from Konrad for Xen, but the ring test still failed. Reading the source I can conclude that the test writes "0xDEADBEEF" but reads "0xCAFEDEAD". Not sure how to proceed. Attaching dmesg from boot with TTM DMA Pool 1.7 patchset. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
