[mythtv] Lockup on Mac OS X wake from sleep

[Dan Wilga]

At 1:50 PM +1100 1/10/07, Nigel Pearson wrote:
>>The problem is that if I close the lid of the laptop, putting it to
>>sleep, without first quitting MFE, then MFE locks up with the
>>infamous "spinning pizza of death" when I wake the machine. I have to
>>force MFE to quit.
>
>Could you maybe run it with -v all to see what happens
>just before, and just after, the sleep?

I did this, and found that precisely nothing was added to the logs. 
The last thing logged occurred shortly before I shut the lid of the 
laptop (a schedule update event), and there was nothing afterward.

I confirmed that the lockup doesn't happen until something in MFE 
needs to use the network. In my test, I had left it sitting at a 
particular menu screen when I put the machine to sleep. Upon waking I 
was able to move the cursor between menu entries, but as soon as I 
pressed Return on the keyboard to go to Watch Recordings, the pizza 
started to spin.

I also confirmed that the problem does not happen if I awaken the 
laptop shortly after putting it to sleep (my test was about 60 
seconds later.) I have usually left it asleep overnight when the 
problem occurs.

Perhaps it has something to do with my wireless router? Perhaps it 
handles a connection that is briefly interrupted differently from one 
that has been disconnected for longer periods of time? It sort of 
makes sense that it might, meaning a connection that is only briefly 
lost isn't closed, but one that goes away for longer periods is 
completely severed.

What happens in the case where you are using a hardwired connection, 
start MFE, use it for a bit, and then pull your ethernet cable out? 
Does MFE recover (and give an appropriate error) in a reasonable 
amount of time? If not, that might be a good way to reproduce the 
problem I'm having.
-- 
Dan Wilga                                                        "Ook."