[Bug 103936] [BAT] [igt@*- timeout/system hang 4.15.0-rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103936

--- Comment #13 from Marta Löfstedt <marta.lofstedt at intel.com> ---
(In reply to Harry Wentland from comment #12)
> Are you still seeing this issue or did you find a workaround? Starting with
> that same commit ("x86/entry/64: Add missing irqflags tracing to
> native_load_gs_index()") we (AMD DC guys) also cannot resume from S3 and
> many systems.
>

We are not seeing this specific S3 related issue anymore after the revert.

> 
> I'm surprised this is not a bigger issue on lkml or elsewhere but I couldn't
> really find anything online other than this bug report and the fact that
> Greg K-H reverted it on the stable 4.14 tree.
> 
> Unfortunately even reverting this patch on our amd-staging-drm-next tree
> doesn't help, although git bisect clearly points at this being the root
> cause of the regression.

That is too bad. Are you still having S3 issues if you run drm-tip? I believe
we are still carrying some 4.14.0-rc1 related fixes on our core-for-CI branch.
But honestly, I am not convinced that all "suspend/resume" related issues that
started with 4.14.0-rc1 are smoked out yet. For example we are seeing network
adapter issues causing our system to loose contact with the machines see bug
103878 and bug 103359. Also, there are still way too many non-explained
system-hangs related to suspend-resume tests.

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