[Bug 93862] [Bisected] "drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2" is bad
https://bugs.freedesktop.org/show_bug.cgi?id=93862
Bug ID: 93862 Summary: [Bisected] "drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2" is bad Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: ernstp@gmail.com
Updating to the latest drm-next-4.6-wip I could no longer log in to Gnome through GDM, I just got a black screen after entering my passwd. startx + gnome-session worked though.
However if I ran Unigine Heaven with Tessellation there, I saw I got the frames in the wrong order sometimes. This doesn't happen otherwise.
Bisecting was easy and pointed to: 78d0e182b6c1f5336f6e8cbb197f403276dabc7f drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
Reverting that commit on top of drm-next-4.6-wip also solved the problem.
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #1 from Michel Dänzer michel@daenzer.net --- (In reply to Ernst Sjöstrand from comment #0)
Updating to the latest drm-next-4.6-wip I could no longer log in to Gnome through GDM, I just got a black screen after entering my passwd. startx + gnome-session worked though.
Please attach the Xorg log and output of dmesg captured after getting the black screen.
Please also attach the output of glxinfo.
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #2 from Ernst Sjöstrand ernstp@gmail.com --- Created attachment 121290 --> https://bugs.freedesktop.org/attachment.cgi?id=121290&action=edit Xorg.0.log
Full of [ 40.002] (WW) AMDGPU(0): flip queue failed: Invalid argument [ 40.002] (WW) AMDGPU(0): Page flip failed: Invalid argument [ 40.002] (EE) AMDGPU(0): present flip failed
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #3 from Ernst Sjöstrand ernstp@gmail.com --- Created attachment 121291 --> https://bugs.freedesktop.org/attachment.cgi?id=121291&action=edit glxinfo
Glxinfo is identical before and after the revert.
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #4 from Ernst Sjöstrand ernstp@gmail.com --- Created attachment 121292 --> https://bugs.freedesktop.org/attachment.cgi?id=121292&action=edit dmesg
Full of: [ 240.780604] amdgpu 0000:01:00.0: ffff8800a8c31c00 pin failed [ 240.780630] [drm:amdgpu_crtc_page_flip [amdgpu]] *ERROR* failed to pin new rbo buffer before flip [ 240.859165] amdgpu 0000:01:00.0: ffff8800a8c31c00 pin failed [ 240.859186] [drm:amdgpu_crtc_page_flip [amdgpu]] *ERROR* failed to pin new rbo buffer before flip
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #5 from Michel Dänzer michel@daenzer.net --- The kernel change is correct, it merely exposed bugs in Mesa (https://patchwork.freedesktop.org/patch/71628/) and xf86-video-amdgpu (http://lists.x.org/archives/xorg-driver-ati/2016-January/028475.html).
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #6 from Michel Dänzer michel@daenzer.net --- Note that if you apply the Mesa fix, you also need to apply the xf86-video-amdgpu fix, or Xorg will fail to start up as you reported on IRC.
https://bugs.freedesktop.org/show_bug.cgi?id=93862
--- Comment #7 from Ernst Sjöstrand ernstp@gmail.com --- Michael: thanks. Could hurt future bisects? Could only get past it without the mesa changes but perhaps I messed something up. Lots of big changes right now!
https://bugs.freedesktop.org/show_bug.cgi?id=93862
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|NEW |RESOLVED
--- Comment #8 from Michel Dänzer michel@daenzer.net --- Fixed in Mesa and xf86-video-amdgpu master. Both fixes are required.
Module: Mesa Branch: master Commit: 62f837e2ea7b854215efb2e110b176dad61c2af0 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=62f837e2ea7b854215efb2e110b...
Author: Michel Dänzer michel.daenzer@amd.com Date: Tue Jan 26 16:15:59 2016 +0900
winsys/amdgpu: Handle RADEON_FLAG_NO_CPU_ACCESS
commit a3eac85d812ecc605436e6bd5b9ee7ebf307e3d3 Author: Michel Dänzer michel.daenzer@amd.com Date: Tue Jan 26 16:12:28 2016 +0900
Only map front buffer if glamor acceleration is disabled (v2)
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