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    SubjectRe: [git pull] drm main pull for 3.4-rc1
    On Tue, Mar 27, 2012 at 09:31:24PM +0200, Daniel Vetter wrote:
    > On Mon, Mar 26, 2012 at 03:44:33PM +0100, Tony Vroon wrote:
    > > -----BEGIN PGP SIGNED MESSAGE-----
    > > Hash: SHA1
    > >
    > > On 26/03/12 15:32, Daniel Vetter wrote:
    > > > Also, can you check whether disabling vt-d does work around the
    > > > issue?
    > >
    > > Yes, that does appear to stay operational for longer on:
    > > Linux adrastea 3.3.0-06972-ge22057c #1 SMP PREEMPT Mon Mar 26 11:29:21
    > > BST 2012 x86_64 Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz GenuineIntel
    > > GNU/Linux
    > >
    > > Obviously I would like to have x2apic and my IOMMU back...
    >
    > Can you try out the for-chainsaw branch from
    >
    > git://people.freedesktop.org/~danvet/drm
    >
    > Afaics it seems to help here on my snb with VT-d enabled. But that means
    > it'll still crash eventually with tons of DMAR fault message (like yours).
    > But compared to previous kernels it now doesn't insta-die for me. So no
    > high hopes, please, but it would be interesting to know how this fares for
    > you.
    >
    > Meanwhile I'll be trying a few other funky tricks.

    Yet another thing to try: Can you append intel_iommu=igfx_off to your
    kernel cmdline? If you can, try this both on mainline kernels and with my
    additional patches.
    -Daniel
    --
    Daniel Vetter
    Mail: daniel@ffwll.ch
    Mobile: +41 (0)79 365 57 48


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