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    SubjectRe: [git pull] drm for rc1
    From
    On Tue, Jan 11, 2011 at 2:16 PM, Linus Torvalds
    <torvalds@linux-foundation.org> wrote:
    > On Mon, Jan 10, 2011 at 2:59 PM, Dave Airlie <airlied@linux.ie> wrote:
    >> Highlights:
    >> core/drivers: add support for high precision vblank timestamps
    >> radeon: pageflipping support, Gen2 PCIE support
    >> nouveau: reworked VRAM and VM support
    >> intel: better ILK/SNB powersaving support, Full GTT support
    >
    > Lowlights: it's broken.
    >
    > I get millions of messages like:
    >
    >  ...
    >  [ 8482.000414] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
    > timer elapsed... render ring idle [waiting on 30938, at 30938], missed
    > IRQ?
    >  [ 8485.918124] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
    > timer elapsed... render ring idle [waiting on 31068, at 31068], missed
    > IRQ?
    >  [ 8487.926963] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
    > timer elapsed... render ring idle [waiting on 31129, at 31129], missed
    > IRQ?
    >  ...
    >
    > and everything is very choppy. I assume it's the power saving thing
    > that broke again, but that's just a total random guess, I have nothing
    > to actually back that up with.
    >
    > It worked fine after boot, but those problems began at 8287.139375
    > (about two hours after boot - it may have coincided with screen saver,
    > but who knows?)  and have been happening constantly since. The machine
    > is not really usable, I'm writing this with annoying 2-second pauses
    > every once in a while.

    Okay I'll try and reproduce and curse Chris and Jesse, does booting with
    i915.powersave=0 help any?

    Dave.
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