[mythtv-users] PVR-350 (hard) lockups, Fixed!

[Calvin Harrigan]

jerome lacoste wrote:

>On Fri, 11 Mar 2005 15:50:02 -0500, Maverick <mavantix at gmail.com> wrote:
>  
>
>>OK, since there seems to be a ton of people on the list lately
>>complaining about the lockup issues with PVR-350's, using TVout, I
>>    
>>
>
>the thing is that the lock ups happen even if we don't use TV Out.
>
>I don't I am on a monitor.
>
>  
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>>the system would just freeze. Having to reboot w/ the reset switch. If
>>we did it quick enough, we can bring the machines back to life by
>>causing the NIC (or maybe other PCI device?) to interrupt. So ping
>>flooding the NIC, or hitting enter at the SSH prompt on the box worked
>>magic.
>>    
>>
>
>That's interesting. I could set up a monitor from another machine to
>try to flood the machine when ping fails....
>
>Adding that to my TODO list. If someone writes one, let me know.
>  
>
>>who knows. What I do know is, it works fine on "different" hardware,
>>yes, that was our fix!
>>    
>>
>
>... I can't do that...
>
>  
>
>>My friend upgraded from the 533/VIA board to Compaq ATX board I had
>>laying around, it is a Athlon 600. He has since had no problems.
>>    
>>
>
>What chipset was handling the DMA in these boards?
>
>  
>
>>* Disable DMA on the HD I/O. It has the effect of slowing the box to a
>>crawl, beyond that, didn't "fix" the problem, because the box itself
>>was too slow...
>>    
>>
>
>I am testing this right now. About 10 hours of uptime (among which 5h
>of Live TV) without lock. That's way over the best I could do before.
>
>It's not a proof but it tends to go in the direction of those saying
>that DMA is broken...
>
>Thanks for you list.
>
>Jerome
>  
>
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>
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>  
>
Try getting a separate hard drive controller.  Those that came with the 
maxtor drives a while back can be had for a few bucks on ebay.
Something like:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=39967&item=5173703127&rd=1
http://search.ebay.com/Promise-ULTRA100-TX2_W0QQsojsZ1QQfromZR40