[Bug 108523] [CI][DRMTIP] igt at kms_vblank@pipe-b-ts-continuation-idle - dmesg-warn - WARN_ON((val & icl_dpclka_cfgcr0_clk_off(dev_priv, port)) == 0)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108523

--- Comment #8 from Imre Deak <imre.deak at intel.com> ---
(In reply to Martin Peres from comment #7)
> (In reply to Jani Saarinen from comment #6)
> > This also passes on shards today, and BIOS also was updated.
> 
> Shards is a fair point. But we got at best 200 runs out of them, and it also
> "passes" on the same machine on the drmtip_ runs... Does not mean it is
> fixed though!
> 
> Right now, we could have a bug with a reproduction rate of 1%. It's ok to
> drop the priority (just did it), but it does not warrant closing it...

This should be fixed by
commit 70332ac539c5c5dffede580fe8986dcfc0751d55
Author: Imre Deak <imre.deak at intel.com>
Date:   Thu Nov 1 16:04:27 2018 +0200

    drm/i915/icl+: Sanitize port to PLL mapping

based on that the bug can be closed.


> 
> Please at least evaluate how bad this WARN is, and if it really is not too
> impactful for our users, then we can ignore the bug again for a couple more
> month and close it.

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