On Fri June 22 2012 10:50:23 Laurent Pinchart wrote:
> Hi Hans,
>
> On Friday 22 June 2012 09:50:44 Hans Verkuil wrote:
> > On 22/06/12 05:39, Prabhakar Lad wrote:
> > > Hi Federico,
> > >
> > > Recent patch from you (commit id a8f3c203e19b702fa5e8e83a9b6fb3c5a6d1cce4)
> > > which added cached buffer support to videobuf dma contig, is causing my
> > > driver to crash.
> > > Has this patch being tested for 'uncached' buffers ? If I replace this
> > > mapping logic with remap_pfn_range() my driver works without any crash.
> > >
> > > Or is that I am missing somewhere ?
> >
> > No, I had the same problem this week with vpif_capture. Since I was running
> > an unusual setup (a 3.0 kernel with the media subsystem patched to 3.5-rc1)
> > I didn't know whether it was caused by a mismatch between 3.0 and a 3.5
> > media subsystem.
> >
> > I intended to investigate this next week, but now it is clear that it is
> > this patch that is causing the problem.
>
> Time to port the driver to videobuf2 ? ;-)
>
>
That's actually something on my todo list...
Regards,
Hans
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