Re: CX25821 driver in kernel 3.4.4 problem

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On Mon, Jul 23, 2012 at 3:40 AM, Radek Mašín <radek@xxxxxxxx> wrote:
> Hello,
> may be one more problem. I use Zoneminder software for capturing pictures from card and occasionally
> I get corrupted picture. Please take a look for attached files.

Looks like the IRQ handler wasn't servicing fast enough, causing parts
of a frame to get dropped.  Does this only happen when you have a
bunch of streams running in parallel?

This sort of performance issue would be very difficult to debug
without one of the developers having a board.  From what I understand
the code provided by Conexant was merged essentially as-is (with some
codingstyle cleanups and zero testing), with no upstream developers
actually having the hardware.

You're probably out of luck unless you're willing to pay somebody to
get a board and debug the problem.

Devin

-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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