On Thu, 18 Aug 2005, Hans Verkuil wrote:
> On Thursday 18 August 2005 02:40, Chase Douglas wrote:
> > I've been trying to get the pvr-500 to work in my mythtv backend and,
> > unfortunately, whenever I try to use the card, it reboots after a few
> > seconds. I have seen where some people have suggested that it is a hardware
> > issue. I am using the 0.3.7 drivers configured as shown in the QuickStart
> > file, excepting a few params for the cx and wm modules which are no longer
> > present. Everything looks good in the log when I modprobe ivtv. Does anyone
> > know how to fix this? If it's a hardware problem, where should I start to
> > try to figure this out?
>
> I came across a NULL pointer bug in the driver yesterday (see also the kernel
> OOPS mail that just came in on the list). I wonder if this is the same
> problem that's bugging you. The patch against 0.3.7f (driver/ivtv-fileops.c)
> is attached. I'm curious if this fixes the problem.
>
> If not, then see if there are some error messages in your kernel log file
> (/var/log/kernel.log or something similar).

Just as a reminder, there are long-time DMA issues under certain VIA
chipsets that seem more likely to occur when using some tv cards during
high I/O (network or disk) situations.  I'd search the archives for
"via" and "bios".

-brendan


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