[Intel-gfx] freedesktop bug id: 100548, bisected to sched/clock commit

[Lofstedt, Marta]

Hi,

We have this "old" Lenovo Cantiga laptop(Intel Core 2 Duo L9400), hocked up to our i915 pre-merge CI system, that has started to give unstable results after commit:

commit 7b09cc5a9debc86c903c2eff8f8a1fdef773c649
Author: Pavel Tatashin <pasha.tatashin at oracle.com>
Date:   Wed Mar 22 16:24:17 2017 -0400

    sched/clock: Fix broken stable to unstable transfer

The issue is describe more in detail here:
https://bugs.freedesktop.org/show_bug.cgi?id=100548

We have reverted above patch and then issue is no longer reproducible.
Also, note that this issue has not been reproduced on any of our other machines,
https://intel-gfx-ci.01.org/CI/

So, why is this only affecting the Core 2 Duo?

BR,
Marta





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