Bug#1075770: linux-image-6.9.7-amd64: adlp_tc_phy_connect [i915] fills logs with drm_WARN_ON(tc->mode == TC_PORT_LEGACY) call traces
Hi Francesco,
On Thu, Jul 04, 2024 at 07:36:21PM +0200, Francesco Poli (wintermute) wrote:
> Package: src:linux
> Version: 6.9.7-1
> Severity: normal
> X-Debbugs-Cc: invernomuto@paranoici.org
>
> Hello,
> on a laptop where I installed Debian testing some 6 months ago,
> I noticed that the logs are continuously filled with call traces
> like the attached snippet (taken from /var/log/kern.log ).
>
> It seems to me that it also used to happen with previous versions
> of the Linux kernel, but I am under the impression that, with linux/6.9.7-1,
> it got worse.
>
> I see 12 of these call traces just after boot, before even starting X
> (with 'startx').
> More of these call traces are sent to the logs after starting X, or
> after invoking 'xrandr', or after locking the X session (with
> XScreenSaver), ...
>
> They seem to correspond to no actual issue, as far as I can tell,
> but they are filling the logs with a significant flow of text...
> which is worrying by itself.
>
> What's wrong?
> How can I stop this log-filling flood?
We discussed your case in the last kernel-team meeting and came to the
conclusion that if possible you report your issue upstream and keep us
here in the loop about progressm. I was not clear though if you need
some guidance to do so.
The get the correct contact addresses for reporting the issue you can
use the get_maintainers.pl script in the upstream source. I would
suggest to approach the following people:
$ ./scripts/get_maintainer.pl drivers/gpu/drm/i915/display/intel_tc.c
Jani Nikula <jani.nikula@linux.intel.com> (supporter:INTEL DRM DISPLAY FOR XE AND I915 DRIVERS)
Rodrigo Vivi <rodrigo.vivi@intel.com> (supporter:INTEL DRM DISPLAY FOR XE AND I915 DRIVERS)
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (supporter:INTEL DRM I915 DRIVER (Meteor Lake, DG2 and old...)
Tvrtko Ursulin <tursulin@ursulin.net> (supporter:INTEL DRM I915 DRIVER (Meteor Lake, DG2 and old...)
David Airlie <airlied@gmail.com> (maintainer:DRM DRIVERS)
Daniel Vetter <daniel@ffwll.ch> (maintainer:DRM DRIVERS)
intel-gfx@lists.freedesktop.org (open list:INTEL DRM DISPLAY FOR XE AND I915 DRIVERS)
intel-xe@lists.freedesktop.org (open list:INTEL DRM DISPLAY FOR XE AND I915 DRIVERS)
dri-devel@lists.freedesktop.org (open list:DRM DRIVERS)
linux-kernel@vger.kernel.org (open list)
Regards,
Salvatore
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