[Bug 96781] [skl dp-mst] oops in atomic commit

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96781

--- Comment #26 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Jim Rees from comment #25)
> Is there some reason not to revert ea0000f0 while we debug this? It's
> clearly causing problems, is a regression from previous working behavior,
> and we have a fix that works. ea0000f0 was applied before it was ready, has
> broken previously working configurations, and should be reverted.

We can only *backport* commits to stable. We can't apply commits to stable
kernels unless the commits are present in Linus' master. So we need to have
this debugged and fixed upstream first. Unfortunately, the revert working for
you in v4.9 does not get us any closer to having this fixed upstream. The
commit also doesn't cleanly revert on v4.10-rc1 anymore.

Can you please try v4.10-rc1 and/or drm-tip branch of
https://cgit.freedesktop.org/drm-tip, plus
https://patchwork.freedesktop.org/patch/128918/ on top?

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