On 03/21/11 20:31, faginbagin wrote:
On 3/21/2011 10:56 PM, Dan Serban wrote:
While I wrote an original email detailing absolutely everything I could
about my PVR-150's locking up for the past few months. I think I
should
just take this one step at a time.
It seems that the mailing list contains some posts from frustrated users
out there that have the same problem. In some cases it seems like a
patch
will be applied to handle the issue.
Is there a patch against any current kernel release?
I'll start there, but I do have a lot of time invested in gathering
possible information on this, my backend has been unusable since
November
due to this bug. I've tried many different things to alleviate the
issue,
though I feel that maybe I'm overlooking something simple. Like a
bug in
the IVTV driver.
Let me know if that's the case :).
I had what may be the same problem on a system with an AMD Athlon X2
4850e. I fixed it by disabling AMD Cool n Quiet in the BIOS. If you
see messages like this in your dmesg output:
ivtv0: DMA TIMEOUT 00000001 0
and if you've got a similar CPU, then maybe the same BIOS change will
work for you.
No, in fact my dmesg output is eerily quiet. I do believe it has
something to do with my PCI bus being saturated, as, once in a while I
do get a green recording. Though again, no dmesg output telling me
there were any DMA errors.
Cool 'n quiet is turned off for me, this is a 939 socket opteron 165
dual core.
Sometimes I do get to see things like:
[164049.321003] ivtv1: All encoder MPG stream buffers are full. Dropping
data.
[164049.325004] ivtv1: Cause: the application is not reading fast enough.
Upping the buffers via the module command line sends the system into a
non-bootable death spiral, I think the problem stems from just too many
PCI cards in the system, though I'd hate to remove what I've got :/
HTH,
Helen
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