[Bug 80157] Buffer Overflow in xf86-video-intel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80157

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #7)
> I haven't been able to reproduce the buffer overflow, but I did see the
> following in the logs (compiled without valgrind or debug from git commit
> 83c0f03):
> 
>   X: sna_dri2.c:2142: chain_flip: Assertion `chain ==
> dri2_chain(chain->draw)' failed.

Hmm. I hope you can trigger that again. It's actually likely bogus now with the
recent triple buffering overhaul, but it would be nice to read through a debug
log and make sure there is not a glaring error.

> I'm getting the following build error when recompiling from head (83c0f03)
> with full debug and valgrind.

Compiles again, thanks for the warning.

commit 273c82a574896885f9f4a78a7463cc4620803624
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Jun 18 18:47:14 2014 +0100

    sna: Fix DBG compilation

    Missed updaing the DBG message in

    commit 83c0f034454ef0f474126a3398e5e790ac5ef842
    Author: Chris Wilson <chris at chris-wilson.co.uk>
    Date:   Wed Jun 18 16:51:46 2014 +0100

        sna: Pass desired CRTC viewport for completing single CRTC flips

    References: https://bugs.freedesktop.org/show_bug.cgi?id=80157
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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