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

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Message-ID: <9a0bfef8-0b5d-f4d0-a8a5-4bbcacc5c0fb@leemhuis.info>
Date:   Tue, 21 Feb 2023 16:03:11 +0100
From:   Thorsten Leemhuis <regressions@...mhuis.info>
To:     Vikash Garodia <vgarodia@....qualcomm.com>
Cc:     "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>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Subject: Re: [PATCH] Revert "venus: firmware: Correct non-pix start and end
 addresses"

On 15.02.23 14:18, Linux regression tracking (Thorsten Leemhuis) wrote:
> 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/

No reply from Mauro and Linus chose to not apply the revert I pointed
him to. That at this point leads to the question:

Vikash, did you or somebody else make any progress to fix this properly?

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.

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