Am 27.06.2014 03:03, schrieb Michel Dänzer:
On 27.06.2014 09:53, Dieter Nützel wrote:
Am 26.06.2014 12:39, schrieb Christian König:
Am 26.06.2014 11:29, schrieb Michel Dänzer:
From: Michel Dänzer michel.daenzer@amd.com
Prevents radeon_crtc_handle_flip() from running before radeon_flip_work_func(), resulting in a kernel panic due to the BUG_ON() in drm_vblank_put().
Tested-by: Dieter Nützel Dieter@nuetzel-hh.de Signed-off-by: Michel Dänzer michel.daenzer@amd.com
Does patch #2 alone fixes the problem as well?
With #2 alone I get this during boot up (before plymouth):
[...]
[ 15.259867] [drm:radeon_crtc_handle_flip] *ERROR* radeon_crtc->flip_status = 0 != RADEON_FLIP_SUBMITTED(2)
That's the original patch I sent to you along with two others for testing. The patch I submitted in this series has these messages downgraded to debugging messages, as they just show the patch preventing bad stuff from happening as designed.
The question is, can you reproduce the panic or the 'impossible msc' lines in the Xorg log with only patch #2?
Oh, shit sorry. I'll redo in a minute before I went to bed!
-Dieter
But with Michel's #1+2 and 3 I got this in Xorg.0.log: (See Xorg.0.log.old.xz)
(EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed.
That may not be directly related to the page flipping issues.