Hi Frank,
Thanks for the report.
On Thursday 12 July 2012 21:07:56 Frank Schäfer wrote:
> Hi,
>
> when I start capturing from the UVC-webcam 2232:1005 ("WebCam
> SCB-0385N") of my netbook, I get a kernel panic.
> You can find a screenshot of the backtrace here:
>
> http://imageshack.us/photo/my-images/9/img125km.jpg/
>
>
> This is a regression which has been introduced between kernel 3.2-rc2
> and 3.2-rc3 with the following commit:
>
>
> 3afedb95858bcc117b207a7c0a6767fe891bdfe9 is the first bad commit
> commit 3afedb95858bcc117b207a7c0a6767fe891bdfe9
> Author: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Date: Thu Nov 3 07:24:34 2011 -0300
>
> [media] uvcvideo: Don't skip erroneous payloads
>
> Instead of skipping the payload completely, which would make the
> resulting image corrupted anyway, store the payload normally and mark
> the buffer as erroneous. If the no_drop module parameter is set to 1 the
> buffer will then be passed to userspace, and tt will then be up to the
> application to decide what to do with the buffer.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
I'm puzzled. Your screenshot shows the uvc_video_stats_decode() function in
the stack trace, but that function wasn't present in
3afedb95858bcc117b207a7c0a6767fe891bdfe9. Could you please send me a stack
trace corresponding to 3afedb95858bcc117b207a7c0a6767fe891bdfe9 ?
Your stack trace looks similar to the problem reported in
https://bugzilla.redhat.com/show_bug.cgi?id=836742.
3afedb95858bcc117b207a7c0a6767fe891bdfe9 might have introduced a different
bug, possibly fixed in a later commit.
--
Regards,
Laurent Pinchart
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