[mythtv-users] Seg fault when using cle266

John Armstrong myth at ggrove.plus.com
Thu Mar 11 15:11:59 EST 2004


I wasn't and that did the job. Thanks. Works without crashing and CPU use
now down to 25%.
Doing chmod u+s mythfrontend works, rather than running the whole X session
as
root.
Maybe there should be something at the end of the install script to either
do the setuid or recommend it.

----- Original Message ----- 
From: "Adam Wood" <AdamWood at Xephi.co.uk>
To: "'Discussion about mythtv'" <mythtv-users at mythtv.org>
Sent: Thursday, March 11, 2004 2:26 PM
Subject: RE: [mythtv-users] Seg fault when using cle266


You may be doing this already but you must run mythfrontend as root for the
CLE266 to work. Atleast with the RedHat drivers you do, it might be
different for the hacked sources.

Hope that helps,

Adam

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of John Armstrong
> Sent: 11 March 2004 14:00
> To: mythtv-users at mythtv.org
> Subject: [mythtv-users] Seg fault when using cle266
>
>
> I have been trying to get my myth system up and running for a
> few weeks now, but keep hitting the same problem. With the
> cle266 lines hashed out, the system runs ok, except that
> watching live tv or recordings is unwatchably stuttery with
> prebuffering pauses. Compiles with cle266 enabled,
> mythfrontend segfaults a few seconds after selecting watch
> tv:
> ###################################################################
> 2004-03-07 20:30:51 mythfrontend version: 0.15.20040303-1
www.mythtv.org 2004-03-07 20:30:51 Enabled verbose msgs : important general
2004-03-07 20:30:51 Registering Internal as a media playback plugin.
2004-03-07 20:30:53 Connecting to backend server: 127.0.0.1:6543 (try 1 of
5)
2004-03-07 20:30:53 Using protocol version 4
2004-03-07 20:30:53 Using protocol version 4
2004-03-07 20:30:53 Using protocol version 4
Input #0, mpeg, from
'rbuf://127.0.0.1:6543/home/media/video/live/ringbuf3.nuv':
  Stream #0.0: Video: mpegvideo_via, 480x576, 25.00 fps
    Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
    2004-03-07 20:30:55 Opening OSS audio device '/dev/sound/dsp'.
    Segmentation fault

###################################################################

System is a Epia M10000 Nehemiah with a PVR350.
I originally installed using Fedora core 1 and version 0.14 and got this
problem. I have now installed gentoo, with kernel 2.4.25-epia1-r1 and
xfree-epia 4.3.99.902-r7, generally following the guide at
http://www.alterself.com/~epia/wiki/tiki-index.php
I also have libddmpeg installed from ebuild
I have installed 0.14 from ebuilds and tarballs, and now 0.15 from CVS, and
always get the same problem. Is there some step/install I am missing
somewhere? I did get the TVout on the PVR working at one point using fedora,
but really want to be able to use mythgame, etc

Why does playback use so much CPU power anyway? Playing the same recorded
file uses 30% cpu using mplayer(+libmpeg2) where mythfrontend uses 80-85%
and doesn't cope.

TIA for any pointers

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