[mythtv-users] Backend Crapping Out

[Poobah]

the-Jer,
    Normally I run mythbackend in my startup scripts, and invoke it using: 
 
    /usr/local/bin/mythbackend -d -l /var/log/mythbackend.log
 
    This uses the -d option to daemonize it and run it in the background.  When mine segfaults like that, there's no indication on the console or in the system logs.  
 
    If I run it at a console prompt without the -d option, it displays everything that's normally in the log on the console, and will display anything the system needs to tell you after the backend dies (like a segfault message) that isn't in any log.  
 
    I'm running 2 PVR-250's on a Intel Chipset (Compaq Evo workstation)  I've got 2 ethernet cards in the backend (my frontend boots off the network - I need a seperate DHCP segment from my Windows workstations).  I'm also running Linux From Scratch, and build Myth from the source (0.14)
 
    I've had IRQ problems if I'm recording, watching something (through 1 NIC), and hit the web page (through the other NIC) all at the same time.  Those usually show up in the backend log as "No more data, game over man' and ivtv complains about "DMA clear" when I kill mythbackend.  I'm going to use 802.1Q in the kernel and remove a netcard to solve that one, when I get around to it.
 
Let me know if you do find it.  I'd be interested to see if it might be the same on mine.
 
Mark

	-----Original Message----- 
	From: the Jer on behalf of the Jer 
	Sent: Tue 5/4/2004 7:41 AM 
	To: Discussion about mythtv 
	Cc: 
	Subject: RE: [mythtv-users] Backend Crapping Out
	
	
	Mark;
	 
	I don't understand completely, you want me to run mythbackend with some command line switches?
	 
	Also, what kind of motherboard and capture card are you using.  I think I have found my problem.  I'm going to try and fix it tonight when I get home.
	 
	the-Jer
	-------
	I had no shoes and I pitied myself.
	Then I met a man who had no feet,
	so I took his shoes. -- Dave Barry

  _____  

	From: mythtv-users-bounces at mythtv.org on behalf of Poobah
	Sent: Tue 5/4/2004 9:08 AM
	To: Discussion about mythtv
	Subject: RE: [mythtv-users] Backend Crapping Out
	
	

	I've had the same problem, and narrowed it down to a segmentation fault.
	I've posted the trace dump here and the -dev list, but never got a
	response.
	
	Try starting at a prompt without the -d and let it run there.  If you do
	get a segfault, you can create a trace using gdb.  I'd be interested to
	see if our traces are similar.  I'll also set mine back up to catch
	another one and post it again.
	
	Mark Hanson
	

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