[mythtv-users] SUID root would allow some threads to run with realtime priority?

Brad Benson bbenso1 at gmail.com
Thu Nov 18 07:58:05 UTC 2004


In order to allow mythfrontend to run as SUID root you'll need to
change the permissions and ownership of the mythfrontend file.  This
will require you to have root privilege only long enough to make the
actual changes.  As root, just run

chown root.root /usr/bin/mythfrontend
chmod 6755 /usr/bin/mythfrontend

Make sure you replace /usr/bin/mythfrontend with the full path to
wherever your mythfrontend file lives.  You can find out where that is
by running this command as your normal user:

which mythfrontend


After you make that change you can just start myth normally and that
log message should disappear.

Brad


On Wed, 17 Nov 2004 23:32:09 -0800, BS <fx at kyi.sytes.net> wrote:
> So i have googled this and looked into the mailing lists.  But  i have not
> see much in the name of a  non-root user  using  mythfrontend  to correct
> the  SUID root  problem?
> 
> any pointers would be great.
> 
> I also looked at this post  
> 
> Post:
> Well this has been mentioned quite a bit but it's just as easy to go ahead
> and tell you. In the frontend setup under TV playback, have you checked off
> experimental A/V Sync, jitter reduction and extra audio buffer? These are
> more or less a must have in MythTV. 
> 
> 
> log print out from my  mythtv:
> 
> 2004-11-17 23:19:32 Changing from None to WatchingLiveTV
> pthread_setschedparam: Operation not permitted
> 2004-11-17 23:19:33 Running as SUID root would allow some threads to run
> with realtime priority, improving video smoothness.
> 2004-11-17 23:19:34 prebuffering pause
> 2004-11-17 23:19:35 Audio buffer overflow, audio data lost!
> 2004-11-17 23:19:35 prebuffering pause
> 2004-11-17 23:19:38 prebuffering pause
> 2004-11-17 23:19:40 prebuffering pause
> 
> 
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> 
> 
>


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