On Sunday 23 August 2009 21:58:03 Jeroen Roos wrote:
> Andy Walls wrote:
> > 1. Find that latest kernel that still works and the earliest kernel
> > that does not.
> >
> > A binary search will terminate in a few trials, e.g. .30, .26, .24,
> > .23. (I suspect this could be painful on a Gentoo system, if you have
> > to rebuild each kernel.)
>
> I have done this in the past, unfortunately not down to patchlevel, but
> I have found that linux-2.6.22-gentoo-r8 works and
> linux-2.6.23-gentoo-r3 not. I have just booted from the first and did
> not have the reboot issue there. Unfortunately I no longer have a
> compiled version of the .23 release, and I cannot compile them anymore
> since they cannot be compiled with gcc 4.3
>
> > 2. Diff the source tree of the two kernels.
>
> video src # diff -r linux-2.6.22-gentoo-r9 linux-2.6.23-gentoo-r3 | wc -l
> 472301
>
> ....mmmmm little bit too much
>
> > 3. Analyze the diff for the change that may have caused the problem.
> >
> > That will narrow the cause down from "anything" to "one of these
> > changes". That changeset still could be rather large.
>
> Indeed, but if I just check the ivtv part, it goes down:
>
> video ~ # cd /usr/src/linux-2.6.22-gentoo-r9/drivers/media/video/
> video video # diff -r ivtv
> /usr/src/linux-2.6.23-gentoo-r3/drivers/media/video/ivtv | wc -l
> 556
>
> Also, a reasonable part of that is changes in comments and printed text.
>
> I think it's a bit too big to include in or attach to the mail, but for
> anyone interested, there's a unified diff (diff -uN) at
> http://thuis.tuxinet.nl/ivtv.patch.
I don't think any of these changes can have caused this. All changes are
either logging/comment changes, or they are related to PVR-350 MPEG decoder
support, neither of which has anything to do with the PVR-500.
I suspect it is elsewhere in the kernel and to find that will require a
proper (and time consuming) binary search.
You might also google first to see if anyone else has reported problems with
your chipset/motherboard. I.e., not ivtv-related but with pci devices and
reboots on your boards in general since kernel 2.6.23 and up.
Regards,
Hans
--
Hans Verkuil - video4linux developer - sponsored by TANDBERG
_______________________________________________
ivtv-users mailing list
[email protected]
http://ivtvdriver.org/mailman/listinfo/ivtv-users
