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Re: [mythtv-commits] Ticket #3943: Since Changeset 14460, mythtv segfaults whenever I play live TV or recordings.

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g8ecj at gilks

Sep 9, 2007, 2:15 AM

Post #1 of 2 (457 views)
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Re: [mythtv-commits] Ticket #3943: Since Changeset 14460, mythtv segfaults whenever I play live TV or recordings.

> #3943: Since Changeset 14460, mythtv segfaults whenever I play live TV or
> recordings.
> -----------------------+----------------------------------------------------
> Reporter: anonymous | Owner: ijr
> Type: defect | Status: reopened
> Priority: minor | Milestone: unknown
> Component: mythtv | Version: head
> Severity: low | Resolution:
> Mlocked: 0 |
> -----------------------+----------------------------------------------------
> Changes (by rainecc[at]gmail.com):
>
> * status: closed => reopened
> * resolution: invalid =>
>
>
> Comment:
>
> Backtrace attached - I have the exact same problem on an EPIA SP1300 with
> the CN400 video. The segfault occurs when trying to watch TV or any
> recording, so this version is hosed for me. The fault appears to be
> centred around openGL, which is not available on my system.
>
> I have tried all of the new vid- settings, standard ffmpeg, libmpeg,
> xvmc,
> etc with no change.
>

This sounds like the same problem I had. I fixed it with this patch from
-vid which applies OK to trunk.

http://svn.mythtv.org/trac/changeset/14439/

Having said that, I'm still using r14400 due to WAF issues with the latest
(skip back hangs and/or crashes). More experimentation tomorrow:-)

--
Robin Gilks

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mythtv2008 at bdam

Sep 9, 2007, 3:39 AM

Post #2 of 2 (405 views)
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Re: [mythtv-commits] Ticket #3943: Since Changeset 14460, mythtv segfaults whenever I play live TV or recordings. [In reply to]

On 9/9/07, Robin Gilks <g8ecj[at]gilks.org> wrote:

> This sounds like the same problem I had. I fixed it with this patch from
> -vid which applies OK to trunk.
>
> http://svn.mythtv.org/trac/changeset/14439/
>
> Having said that, I'm still using r14400 due to WAF issues with the latest
> (skip back hangs and/or crashes). More experimentation tomorrow:-)

Exactly what happens here after the vid-branch merge. On my remote
frontend via with a cle266 livetv always causes a segfault.
Additionally on my master backend (AMD64-3000 with Ubuntu Feisty
(32bit) with DVB-t) a full channel scan segfaults after getting a
LOCK:

Connected to database 'mythconverg' at host: 192.168.178.23
2007-09-07 17:31:23.622 SelectSetting::setValue(): invalid index: -1 size: 1
Segmentation fault (core dumped)

And here the backtrace for the crashing channel scan: http://pastebin.ca/685778

If an additional backtrace for the cle266 crash is needed please tell
me. Also for me most parts of the backtrace consist of GL messages
like _glXInitialize () from /usr/lib/libGL.so.1, glXQueryVersion ()
from /usr/lib/libGL.so.1, OpenGLContext::IsGLXSupported () from
/usr/lib/libmythtv-0.20.so.0

Regards,
Adam
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