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    SubjectRe: [patch 0/6] x86, PAT, CPA: Cleanups and minor bug fixes

    * Eric Anholt <> wrote:

    > On Thu, 2009-04-09 at 14:26 -0700, wrote:
    > > This patchset contains cleanups and minor bug fixes in x86 PAT and CPA
    > > related code. The bugs were mostly found by code inspection. There
    > > should not be any functionality changes with this patchset.
    > I've been curious, what are you using to test PAT changes for
    > regressions? I've got some regression tests at:
    > Requires KMS enabled and master of libdrm, but after that you can
    > sudo make check, and it tests execution of several DRM paths
    > without requiring X. In benchmarks/ there are a few
    > microbenchmarks of various mapping types, which has been useful in
    > making sure that we're ending up with the right PTEs.

    Looks really nice! Regarding libdrm, is there a version cutoff from
    where it is expected to work just fine? I've got this version:


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