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Message-ID: <0bef4bea-1404-061c-cbbf-e874302367f7@leemhuis.info>
Date:   Tue, 23 May 2023 12:35:13 +0200
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Reply-To: Linux regressions mailing list <regressions@lists.linux.dev>
Subject: Re: [PATCH v2] media: verisilicon: Fix crash when probing encoder
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To:     Diederik de Haas <didi.debian@cknow.org>,
        Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
        Benjamin Gaignard <benjamin.gaignard@collabora.com>,
        Nicolas Dufresne <nicolas.dufresne@collabora.com>
Cc:     p.zabel@pengutronix.de, mchehab@kernel.org,
        m.szyprowski@samsung.com, linux-media@vger.kernel.org,
        linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
        kernel@collabora.com,
        Linux kernel regressions list <regressions@lists.linux.dev>
References: <20230413104756.356695-1-benjamin.gaignard@collabora.com>
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 <403ea30e55a9667684cd1f8d2d3a641efda9976f.camel@collabora.com>
 <4995215.LvFx2qVVIh@bagend>
From:   "Linux regression tracking #adding (Thorsten Leemhuis)" 
        <regressions@leemhuis.info>
In-Reply-To: <4995215.LvFx2qVVIh@bagend>
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[CCing the regression list, as it should be in the loop for regressions:
https://docs.kernel.org/admin-guide/reporting-regressions.html]

[TLDR: I'm adding this report to the list of tracked Linux kernel
regressions; the text you find below is based on a few templates
paragraphs you might have encountered already in similar form.
See link in footer if these mails annoy you.]

On 20.05.23 00:34, Diederik de Haas wrote:
> 
> On Thursday, 13 April 2023 21:52:50 CEST Nicolas Dufresne wrote:
>> Le jeudi 13 avril 2023 à 10:10 -0300, Ezequiel Garcia a écrit :
> [....]
> 
> When I booted into my 6.4-rc1 (but also rc2) kernel on my
> Pine64 Quartz64 Model A, I noticed a crash which seems the same as
> above, but I didn't have such a crash with my 6.3 kernel.
> Searching for 'hantro' led me to this commit as the most likely culprit
> but when I build a new 6.4-rcX kernel with this commit reverted,
> I still had this crash.
> Do you have suggestions which commit would then be the likely culprit?
> [...]

Thanks for the report. To be sure the issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression
tracking bot:

#regzbot ^introduced db6f68b51e5c
#regzbot title media: verisilicon: null pointer dereference in try_fmt
#regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply and tell me -- ideally
while also telling regzbot about it, as explained by the page listed in
the footer of this mail.

Developers: When fixing the issue, remember to add 'Link:' tags pointing
to the report (the parent of this mail). See page linked in footer for
details.

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
That page also explains what to do if mails like this annoy you.