On Tue, 2005-04-26 at 12:35 -0500, Chris Kennedy wrote:
> Does this fix if you grab the ivtv-irq.c from 3.3 too?, Trying to figure
> out which version changed, can't be 3.2z, because that version would only
> affect VBI DMA which you are not using, so has to be a newer version than 
> those two between 3.2z and 3.3.  It's odd because I don't know if others
> are having the problem, (if so please speak up and help with which versions
> broke), at least all my test systems are not having this problem.  So
> really need to figure out which version this broke at and so can narrow
> down the search area, it has to be after 3.3 sometime.

I was having the issue as well. Turning off the VBI in myth seems to
stop it for me. I just got the card the other week and have not gotten
everything setup on my machine yet. I have one load of 0.3.2z that did
not seem to have the problem, but I don't know if I did any viewing
durning that run.

I changed the print around to this:
IVTV_DEBUG(IVTV_DEBUG_ERR,
   "ENC IRQ OVERFLOW: #%d Stealing a Buffer, %d currently allocated Type
%d %d/%d\n",
   atomic_read(&st->stolen_bufs),
   atomic_read(&st->allocated_buffers),
   st->type,
   st->buf_total, st->buf_max);

The result was this:
ivtv: ENC IRQ OVERFLOW: #0 Stealing a Buffer, 2 currently allocated Type
2 4225104/4194304

The strange thing is that there are only 2 buffers allocated, when it
seems like there should be 121, from the init prinit at startup.

ivtv: Create DMA stream 2 using 121 34632 byte buffers  0 kbytes total
ivtv: Allocate DMA stream 2 using 121 34632 byte buffers  4194304 kbytes
total

Also for the above print do you really want the stolen_bufs count? If it
was removed then the kernel could do the "repeat" event thing for it and
cut down on the logs.



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