[mythtv-users] PVR-350 (hard) lockups, Fixed!
jerome.lacoste at gmail.com
Fri Mar 11 21:15:05 UTC 2005
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.
> 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
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.
More information about the mythtv-users