Re: Driver crash on kernel 2.6.32.7. Interaction between cx8800 (DVB-S) and USB HVR Hauppauge 950q

[Richard Lemieux <rlemieu@cooptel.qc.ca>]

Hi,

I tried something simple with three kernel versions:

2.6.30, 2.6.31, and 2.6.32.7.

But I can't reproduce the problem that way.

Just after booting I run alternatively

/opt/dvb-apps/bin/szap -a 0 -r "CCTV 4"
/opt/dvb-apps/bin/azap -a 1 -r "57.1"

and then I run them concurrently

and finally I disconnect the USB tuner and replug and retry the 'azap'

I did not get any crash yet.

So there is likely some other "environmental" condition that is relevant.

I will continue using 2.6.32.7.  Whenever I meet the problem I will
take note of the environment and try to reproduce the same environment with
other versions of the kernel.

Thanks

> 
> The only "major reorganization" in that time period I can think of is
> a couple of the files related to IR support were moved.
> 
> Further, the problem appears to be in the implementation of
> request_firmware() and doesn't look specific to any changes in the
> v4l-dvb tree.
> 
> All I can suggest at this point is you try to narrow down what release
> the breakage was introduced in, at which point we can take a look at
> what changed.
> 
> Devin
>