Re: 3.2-rc1 and nvidia drivers

[Thomas Schauss <schauss@tum.de>]

On 11/30/2011 04:20 PM, Steven Rostedt wrote:
> On Wed, 2011-11-30 at 16:07 +0100, Thomas Schauss wrote:
>
>> On 3.0.9-rt25 (which I have been using here) patch 30765b92 is already
>> applied. And it is also present in patch-3.0.10-rt27.patch.
>
> I'm such a fscking idiot!
>
> I've been working on a port of a patch in 2.6.33-rt, and I didn't
> realize that I was still in that kernel, applying these patches. As I
> said, I thought the one Peter had was already applied. It was, I'm the
> idiot that didn't realize I was in the wrong kernel!
>
>>
>> So the original patch from Peter
>> (http://article.gmane.org/gmane.linux.kernel.mm/70863/match=) applies
>> cleanly here.
>
> Yeah, thanks. That's the patch you want.
>
> -- Steve
>
>
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Hello,

this patch does indeed get rid of the lockdep-splat.

Regarding the original subject of the post:

Running startx with the nvidia binary driver fails on 3.0.9-rt25 and 
3.2-rc2-rt3 when CONFIG_PREEMPT_RT_FULL=y and works fine for 
CONFIG_PREEMPT_RTB=y. There is no lockdep-warning, kernel oops/bug, 
etc., neither in any log-files nor on the serial console.

This happens on several machines which ran fine with 2.6.33-rt29.

I know many people here are no big fans of the nvidia driver (and 
rightly so). Unfortunately we really need this.

If anyone has any further ideas on debugging this issue I would be 
really thankful.

Best Regards,
Thomas