From: "Luca Ceresoli" <luca.ceresoli@bootlin.com>
To: "Naresh Kamboju" <naresh.kamboju@linaro.org>,
<dri-devel@lists.freedesktop.org>,
"open list" <linux-kernel@vger.kernel.org>,
<lkft-triage@lists.linaro.org>,
"Linux Regressions" <regressions@lists.linux.dev>
Cc: "Dmitry Baryshkov" <dmitry.baryshkov@oss.qualcomm.com>,
"Simona Vetter" <simona@ffwll.ch>,
"David Airlie" <airlied@gmail.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Dan Carpenter" <dan.carpenter@linaro.org>,
"Anders Roxell" <anders.roxell@linaro.org>,
"Ben Copeland" <benjamin.copeland@linaro.org>
Subject: Re: next-20251014: Internal error: Oops: drm_bridge_connector_hdmi_cec_init drmm_connector_hdmi_cec_register
Date: Thu, 16 Oct 2025 15:36:00 +0200 [thread overview]
Message-ID: <DDJSBQRQJTMZ.X1W4I5YOURPK@bootlin.com> (raw)
In-Reply-To: <CA+G9fYv_mGoDzFv33v7Y5+6yz6z=xp9FJRiFUBYDapvE_rrBXA@mail.gmail.com>
Hello Naresh,
On Thu Oct 16, 2025 at 12:52 PM CEST, Naresh Kamboju wrote:
> On Thu, 16 Oct 2025 at 16:14, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>>
>> While booting and loading kernel modules on dragonboard 410c board
>> with Linux next
>> kernel next-20251014 and next-20251015 the following crash noticed,
>>
>> First seen on next-20251014
>> Good: next-20251013
>> Bad: next-20251014
>>
>> Regression Analysis:
>> - New regression? yes
>> - Reproducibility? yes
>>
>> Boot regressions: next-20251014: Internal error: Oops:
>> drm_bridge_connector_hdmi_cec_init drmm_connector_hdmi_cec_register
Thanks for the report.
This looks like the same issue reported here:
https://lore.kernel.org/all/336fbfdd-c424-490e-b5d1-8ee84043dc80@samsung.com/
I'm writing a fix right now, will send it today if all goes well.
> These three patches landed recently,
> $ git log --oneline next-20251013..next-20251014
> drivers/gpu/drm/display/drm_bridge_connector.c
> 2be300f9a0b6f drm/display: bridge_connector: get/put the stored bridges
^ This is the commit introducing the bug.
Best regards,
Luca
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2025-10-16 13:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-16 10:44 next-20251014: Internal error: Oops: drm_bridge_connector_hdmi_cec_init drmm_connector_hdmi_cec_register Naresh Kamboju
2025-10-16 10:52 ` Naresh Kamboju
2025-10-16 13:36 ` Luca Ceresoli [this message]
2025-10-17 16:21 ` Luca Ceresoli
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