Re: [ivtv-devel] 2.6.29: ivtv-vbi.c: divide-by-zero in compress_sliced_buf()

[Mark Lord]

Mark Lord wrote:
> Hans Verkuil wrote:
> > On Monday 30 March 2009 04:59:34 Mark Lord wrote:
> > > The changes to line_size in 2.6.29 now cause
> > > attempts to record from my PVR250 cards (MythTV)
> > > to die with a divide by zero error in ivtv-vbi.c.
> > >
> > > The value of "line_size" in compress_sliced_buf() is zero.
> >
> > Weird. That should never be zero. Can you mail me the ivtv 
> > initialization log from dmesg? I need the bit between 'ivtv: Start 
> > initialization' and 'ivtv: End initialization'.
> ..
>
> Sent.
..

For what it's worth, I did try patching that function to detect
a line_size of zero, and replace it on the fly with a more likely value.
This prevented the crash, but the recorded video was very dark, as if
colour controls had not be initialized.  That could be another clue.

Cheers
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