[Bug 88716] [HSW GT1] trying to flip between 2 buffers of different strides

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88716

--- Comment #4 from dhead666 <myfoolishgames at gmail.com> ---
* 1st test: xf86-video-intel-2.99.916 with flag --enable-debug=full
It looks like adding the flag created another issue, X on vt1 crashing when I
change to vt2.
This test is just to show the X is crashing.
logs:
20150123-01-xorg_fast_crash-journal.log
20150123-01-xorg_fast_crash-Xorg.0.log.log (7MB on Dropbox)

* 2nd test: xf86-video-intel-2.99.916 with flag --enable-debug=full
In this test I opened multiple tabs in Chromium with allot of images that I
hope overloaded the GPU and generated the wanted debug info.
logs:
20150123-02-gpu_slowdown-journal.log
20150123-02-gpu_slowdown-Xorg.3.log.log (100MB)

* 3rd test: xf86-video-intel-2.99.916 with flag --enable-debug=full and with
patch 0001-sna-dri2-Only-preserve-back-buffers-with-the-same-pi.patch
Same as 2nd test but with the patch added.
20150123-03_with_patch-gpu_slowdown-journal.log
20150123-03_with_patch-gpu_slowdown-Xorg.0.log.log (50MB)

I just archived the logs and uploaded the archive to Dropbox as even compressed
the larger log still was above 3MB.
https://www.dropbox.com/s/ve6oxegs21u22um/20150123-logs.tar.gz?dl=0

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