On Saturday 03 December 2005 16:45, Mark Knecht wrote:
> On 12/3/05, Hans Verkuil <[EMAIL PROTECTED]> wrote:
> > On Saturday 03 December 2005 16:17, Mark Knecht wrote:
> > > Ah, come on. No one can venture a guess?
> > >
> > > This machine has run ivtv and MythTV for months. After a recent
> > > kernel (2.6.12 to 2.6.14) upgrade this message started happening
> > > AND the machine has gotten flaky. Thisis the only message I'm
> > > getting that seems different from before the upgrade.
> > >
> > > HELP!
> > >
> > > - Mark
> > >
> > > On 12/2/05, Mark Knecht <[EMAIL PROTECTED]> wrote:
> > > > > ivtv: ==================== END INIT IVTV
> > > > > ==================== ivtv0 warning: ENC: REG_DMAXFER 2 wait
> > > > > failed
> > > > > ivtv0 warning: DEC: REG_ENCSG1LEN wait failed
> > > > >
> > > > > thanks,
> > > > > Mark
> >
> > Was the kernel upgrade the only thing that changed? For me 2.6.12
> > was flaky (spontaneous crashes, etc.) while 2.6.14 is solid.
> >
> > The messages mean that a DMA transfer didn't start. Why? Don't
> > know. But if it only happened after a kernel update and they
> > disappear when you go back to 2.6.12, then that can be interesting
> > to investigate.
> >
> > Hans
>
> Hans,
> Does this message mean DMA is completely stopped? That would
> explain some things. What I do see is that when MythTV starts
> recording a file is opened but the size never grows. If so, the
> message should be changed from a warning to a big FAIL!
That's very likely, yes.
>
> Immediately after the kernel upgrade I didn't see these messages
> and the system was working. I left my parents house and came back
> home 350 miles north. I then got a call the next day with info that
> the system was no longer working. IIRC he had rebooted for some
> reason. I've been looking at it off and on over the last week. This
> warning message is the only real clue from an ivtv perspective.
>
> I'll see about a reboot into the old kernel.
OK. I know there are other DMA problems (ticket #49) but I want to
finish a bunch of other tasks first in the next two weeks or so.
Hans
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