Bug#699470: crystalhd-dkms: Kernel null pointer BUG in crystalhd_dioq_fetch_wait()

thomas schorpp thomas.schorpp at gmail.com
Thu Feb 28 21:52:16 UTC 2013


On 28.02.2013 20:41, Julien Cristau wrote:
> On Thu, Jan 31, 2013 at 19:25:50 +0100, tom schorpp wrote:
>
>> Package: crystalhd-dkms
>> Version: 1:0.0~git20110715.fdd2f19-7
>> Severity: critical
>> Tags: patch
>> Justification: breaks the whole system
>>
>> Reproducible NULL pointer BUG at crystalhd-0.0~git20110715.fdd2f19/driver/linux/crystalhd_misc.c:515,
>> triggered by adobe flash plugin from dmo repo, ffmpeg, mplayer, bino or other, mostly on heavy ioq usage
>> or after FETCH_TIMEOUT and/or unclosed driver HANDLEs.
>>
> Does the maintainer or somebody on pkg-multimedia plan on fixing this RC
> bug?  If not I'll consider a NMU removing the dkms package from
> crystalhd source.
>
> Cheers,
> Julien
>

Known linux-media Maintainers

STAGING - CRYSTAL HD VIDEO DECODER
M:    Naren Sankar <nsankar at broadcom.com>
M:    Jarod Wilson <jarod at wilsonet.com>
M:    Scott Davilla <davilla at 4pi.com>
M:    Manu Abraham <abraham.manu at gmail.com>

seem to have left the Broadcom's legacy driver code, focusing on the new linux-media staging driver, but limited time,
one stated lately on the linux-media/LKML, nothing read from the others.
I could adapt it to new kernel releases the next 2-3 years, but nothing more, not a experienced kernel driver coder,
no debian package/policy maintaining motivation because I do not use dkms or debian kernels packages.

If my last patch applies to Your codebase in the debian git repository (mine is from git.linuxtv.org, according to the
git changelog more advanced in the gstreamer plugin, merge?) You may consider it

"hotfixed"

and release with known multithreading (gstreamer based transcoders/matroska demuxers) and PM ACPI S3 issues?
Has not crashed here any more, nor notable side effects with usual playback use cases, including Totem (gstreamer).

y
tom



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