linux-kernel - Re: [PATCH] Revert "venus: firmware: Correct non-pix start and end addresses"

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Date:   Wed, 15 Feb 2023 14:18:29 +0100
From:   "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Vikash Garodia <vgarodia@....qualcomm.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mka@...omium.org" <mka@...omium.org>,
        Albert Esteve <aesteve@...hat.com>,
        "stanimir.varbanov@...aro.org" <stanimir.varbanov@...aro.org>,
        Enric Balletbo i Serra <eballetb@...hat.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        "Vikash Garodia (QUIC)" <quic_vgarodia@...cinc.com>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        Fritz Koenig <frkoenig@...gle.com>,
        "Dikshita Agarwal (QUIC)" <quic_dikshita@...cinc.com>,
        "Rajeshwar Kurapaty (QUIC)" <quic_rkurapat@...cinc.com>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Linux regressions mailing list <regressions@...ts.linux.dev>
Subject: Re: [PATCH] Revert "venus: firmware: Correct non-pix start and end
 addresses"

On 15.02.23 11:57, Javier Martinez Canillas wrote:
> On Wed, Feb 15, 2023 at 11:53 AM Linux regression tracking (Thorsten
> Leemhuis) <regressions@...mhuis.info> wrote:
>> On 11.02.23 15:27, Linux regression tracking (Thorsten Leemhuis) wrote:
>>> On 10.02.23 11:07, Javier Martinez Canillas wrote:
>>>> On 2/10/23 10:22, Vikash Garodia wrote:
>>>>
>>>>>> So what should we do about this folks? Since not allowing the driver to probe on
>>>>>> at least SC7180 is a quite serious regression, can we revert for now until a proper
>>>>>> fix is figured out?
>>>>> I am able to repro this issue on sc7180 and discussing with firmware team on the cause
>>>>> of reset failure. The original patch was raised for fixing rare SMMU faults during warm
>>>>> boot of video hardware. Hence looking to understand the regressing part before we
>>>>> proceed to revert.
>>>> Great, if you are working on a proper fix then that would be much better indeed.
>>> Yeah, that's great, but OTOH: there is almost certainly just one week
>>> before 6.2 will be released. Ideally this should be fixed by then.
>>> Vikash, do you think that's in the cards? If not: why not revert this
>>> now to make sure 6.2 works fine?
>> Hmm, no reply. And we meanwhile have Wednesday and 6.2 is almost
>> certainly going to be out on Sunday. And the problem was called "a quite
>> serious regression" above. So why not quickly fix this with the revert,
>> as proposed earlier?
>> Vikash? Javier?
>
> I agree with you, that we should land this revert and then properly
> fix the page fault issue in v6.3.
> 
> But it's not my call, the v4l2/media folks have to decide that.

In that case: Mauro, what's your opinion here?

Thread starts here:
https://lore.kernel.org/lkml/20230207102254.1446461-1-javierm@redhat.com/

Regression report:
https://lore.kernel.org/lkml/Y9LSMap%2BjRxbtpC8@google.com/

Ciao, Thorsten