[mythtv-users] defunct mythfrontend children processes

Michael T. Dean mtdean at thirdcontact.com
Wed Nov 18 20:25:33 UTC 2009

On 11/18/2009 03:18 PM, Johnny Walker wrote:
> On Wed, Nov 18, 2009 at 2:13 PM, hERB wrote:
>> On Wed, Nov 18, 2009 at 8:05 PM, Mark Greenwood wrote:
>>> On Tuesday 17 Nov 2009 20:22:04 Seth Daniel wrote:
>>>> On Tue, Nov 17, 2009 at 10:31:07AM -0500, Johnny wrote:
>>>>> While looking into another problem I have noticed that I usually have
>>>>> from 1 to 3 defunct mythfrontend processes running. They are listed as
>>>>> children of the active mythfrontend process. I never noticed this
>>>>> before in the past. The defunct children are there immediately after
>>>>> mythfrontend starts. I have only seen it since I upgraded to Ubuntu
>>>>> 9.10 and mythtv .22. Is anybody else seeing this? Is this a bug of
>>>>> some sort? Or is this normal and of no concern?
>>>> I believe it has to do with MythWeather.  MythWeather launches a number
>>>> of scripts at the startup of the frontend that query whatever weather
>>>> site it queries.  As best I can tell when those scripts end the process
>>>> that was spawned to run that script is not cleaned up (i.e. wait()ed
>>>> for).
>>>> Are all people reporting this running MythWeather?
>>>> I'm not a Myth dev, but this doesn't seem like a big issue to me (I'm
>>>> not
>>>> advocating that it go unresolved).
>>> Yes I'm running Mythweather altough I didn't actually realise it.. must
>>> have clicked something by accident :) I'll remove it and report back if the
>>> problem persists.
>>> I think zombie processes are always a big issue.
>> Another "me too", with no MythWeather and no MythWelcome.
>> Are people using LiveTV? I think I was able to create a zombie by entering
>> Watch TV when tuner(s) were in use, or certain other tuner conditions, but I
>> would have to check when I am home...
> My 3 zombie pids appear wihout me actually doing anything. It's
> immediately after boot.

You know, Paul wasn't lying when he told you it's a) a known issue and 
b) due to problems with the media monitor code, as discussed in  
http://svn.mythtv.org/trac/ticket/7135 .

We don't have a fix for it, yet.  If you're interested in fixing it, 
please read that ticket so you're not wasting time looking at 
MythWeather.  :)


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