Re: [PATCH v4 3/3] drm/i915/gt: Timeout when waiting for idle in suspending

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On Tue, 2023-11-14 at 12:36 -0500, Vivi, Rodrigo wrote:
> On Tue, Nov 14, 2023 at 05:27:18PM +0000, Tvrtko Ursulin wrote:
> > 
> > On 13/11/2023 17:57, Teres Alexis, Alan Previn wrote:
> > > On Wed, 2023-10-25 at 13:58 +0100, Tvrtko Ursulin wrote:
> > > > On 04/10/2023 18:59, Teres Alexis, Alan Previn wrote:
> > > > > On Thu, 2023-09-28 at 13:46 +0100, Tvrtko Ursulin wrote:
> > > > > > On 27/09/2023 17:36, Teres Alexis, Alan Previn wrote:
> 
> That's a good point.
> Well, current code is already bad and buggy on suspend-resume. We could get
> suspend stuck forever without any clue of what happened.
> At least the proposed patch add some gt_warn. But, yes, the right thing
> to do should be entirely abort the suspend in case of timeout, besides the
> gt_warn.
alan: yes - thats was the whole idea for Patch #3. Only after putting such
code did we have much better debuggability on real world production platforms
+ config that may not have serial-port or ramoops-dump by default.

Btw, as per previous comments by Tvrtko - which i agreed with, I have
moved this one single patch into a separate patch on its own.
See here: https://patchwork.freedesktop.org/series/126414/
(I also maintained the RB from you Rodrigo because the patch did not changed).
And yes, the gt_warn is still in place :)




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