[mythtv] [mythtv-commits] Ticket #10236: Systemd Mythbackend startup does not check for existing process

[R. G. Newbury]

On 01/05/2012 06:16 PM, Karl Dietz wrote:
> On 03.01.2012 22:33, Karl Dietz wrote:
>> On 03.01.2012 18:28,  MythTV wrote:
>>> #10236: Systemd Mythbackend startup does not check for existing process
>>> ----------------------------------+-----------------------------
>>>     Reporter:  newbury@…             |          Owner:
>>>         Type:  Patch - Bug Fix       |         Status:  new
>>>     Priority:  minor                 |      Milestone:  unknown
>>> Component:  MythTV - General      |        Version:  Unspecified
>>>     Severity:  medium                |     Resolution:
>>>     Keywords:                        |  Ticket locked:  0
>>> ----------------------------------+-----------------------------
>>>
>>> Comment (by wagnerrp):
>>>
>>>     Is this actually a MythTV problem?  The only two init scripts we host are
>>>     ones in the Gentoo and rpm sections of the packaging repo, and neither of
>>>     them seem to line up with what you're talking about.  What file needs to
>>>     be changed?
>>>
>>
>> it appears as if mythbackend needs to be changed to actually exit when
>> it received the corresponding signal... ;)
>>
>> I have the same issue every now and then on mythbuntu 11.04 with
>> master PPA
>
> here's a backtrace http://paste.ubuntu.com/794362/
> mythbackend is keeping one cpu busy at that point in time and the
> recordings view in mythweb shows one recording from yesterday as still
> running, but no recorder is in use...

The backtrace might provide some insight into what has gone wrong. 
Amending the pre-start.sh script will at least kill the zombie process, 
easily, But given your symptoms, you might not realize that things had 
gone wrong, without some amount of checking.
Geoff
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