[Intel-gfx] intel-drm-nightly 3.13rc3 broke i830 - more debug

[Daniel Vetter]

On Thu, Dec 19, 2013 at 04:46:17PM +0100, Daniel Vetter wrote:
> On Thu, Dec 19, 2013 at 04:07:35PM +0100, Thomas Richter wrote:
> > Hi Daniel, hi folks,
> > 
> > here is more debug output from the blank screen/hang on the i830
> > based laptop:
> 
> Quick shot in the dark: Can you please try the below diff?
> 
> If that doesn't work please remove the locking in that function completely
> (i.e. remove the calls to drm_modset_lock|unlock_all).

If that doesn't help please compile a pristine -nightly with lockdep
(CONFIG_PROVE_LOCKING) rehang the machine and grab the complete dmesg.
Please make sure that you don't line-wrap it for easier reading. Lockdep
should be able to tell us who's blocking on what exactly here ...
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch