[mythtv-users] MythTV freezes on Fedora

[Chris Manning]

Hi there.  I find your problem interesting since I am running into a
similar problem.  This is my first Mythtv install (following Jarod's
guide which is very well done.  Thanks Jarod!)  Here is my system setup:

RH9
PVR-350
Asus A7N8X-X Nforce based mobo
Using both onboard sound and ethernet
AMD 2400+
512Mb RAM
X being displayed on the PVR-350

Latest ver of everything available by apt as of 20 mins ago.

So here's what is happening.  When I either schedule a recording, or
tape something that is currently on, it records about 2 or 3 mins
(sometimes as much as 10-15 mins,) and then stops as if it is done
recording.  I thought at first it might have been the 350 crashing the
frontend since that seems to be happening to other people.  The frontend
is still running fine.  I decide to check Mythweb, and it complains that
it can't connect to the backend server.  I decided to restart the
backend, however, that doesn't solve the problem.  Look at the
mythbackend.log files, and no errors show up.  As it turns out, when I
restart mysql, things start working again for another 10 mins.  So upon
searching through all the system logs including the mysql log, I have
only found this error in mysqld.log:

Cannot initialize InnoDB as 'innodb_data_file_path' is not set.
If you do not want to use transactional InnoDB tables, add a line
skip-innodb
to the [mysqld] section of init parameters in your my.cnf
or my.ini. If you want to use InnoDB tables, add to the [mysqld]
section, for example,
innodb_data_file_path = ibdata1:10M:autoextend
But to get good performance you should adjust for your hardware
the InnoDB startup options listed in section 2 at
http://www.innodb.com/ibman.html
/usr/libexec/mysqld: ready for connections

Now my sql settings are whatever were setup during the install, and it
isn't used for anything else.  While I'm unix and linux competant, I
know little about mysql.  Does anyone have any ideas what is going on? 
I'd be happy to provide any log files it that will help.

Thanks
Chris Manning




On Sun, 2004-03-21 at 20:56, Hector Vayanos wrote:
> Hi,
> I am encountering a very strange problem with MythTV.
> 
> My system characteristics are:
> - Tuner: Hauppauge PVR-250
> - MoBo: ASUS A7N266-VM
> - CPU: Athlong XP1800+
> - Ethernet: built in Nvidia (nvnet)
> - Audio: built in Nvidia (nvaudio - AC97 - intel8x0)
> 
> I was a very happy Mythtv 0.12 user. My installation was based on Jarod's 
> guide for RH9.0 and Axel's rpm packages. I recently tried to upgrade to 
> version 0.14 but apt got completely hosed (the dependency file 
> disappeared), so I figured it was a good opportunity to transition to 
> Fedora. I again made use of Jarod's excellent guide.
> 
> In general I am quite disappointed by Fedora. It takes extremely long both 
> to boot up and shut down compared to RH9.0 with the same services set up. I 
> did quite a bit of searching on the web but could not find any explanation 
> for this.
> 
> MythTV 0.14 on the other hand seems to be a worthwhile upgrade. I really 
> like the status information.
> 
> Everything seems to be working fine, except that after watching live TV for 
> about 3 to 4 minutes the image freezes and eventually the back-end service 
> sort of hangs. At first I thought there was a problem with the ivtv driver 
> or with the PVR firmware. By complete coincidence I found that if there is 
> network activity (http or telnet) at the time when mythtv freezes the 
> server recovers.
> 
> For scheduled recordings I only get about 9-10 minutes of the show. After 
> that the backend service hangs (it keeps reporting that the tuner is 
> already in use even after the show time is passed). I am assuming that the 
> same thing that happens for live-TV also occurs here.
> 
> I am not sure whether this is something to do with Fedora, MythTV, mplayer 
> or my ethernet adapter. I have already followed Jarod's suggestions to stop 
> DPMS. I could not find anything on the web on other power management 
> schemes (apmd is not running) that could lead to such behavior. I would be 
> very interested in hearing any suggestions on what could be causing this.
> 
> Thanks,
> Hector
> 
> 
> 
> ________________________________________________________
> Hector Vayanos
> Senior Engineer,
> Qualcomm Inc.
> 
> phone: (858) 845-3011
> pager: (858) 636-9655
> fax: (858) 658-5006
> 
> 
> 
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