Bug 24694

Summary: R6xx kms gloss corruption.
Product: DRI Reporter: Andy Furniss <adf.lists>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED INVALID QA Contact:
Severity: normal    
Priority: medium    
Version: XOrg git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
gloss corruption end
none
gloss corruption side none

Description Andy Furniss 2009-10-23 07:06:24 UTC 
RV670 AGP card running gits drm-next,ddx and mesa.

Repeated running of the mesa demo gloss sometimes produces rendering errors as attached. The corruption is always the same. How many runs is quite variable.

Corruption happens with kms agp and pcie gart.

I haven't managed to produce in ums or sw, but because it may take many runs and possibly a bit of browsing in between I can't be 100% sure it's just kms.

Reseting mesa git to 5e77b61e393144e76fe0a280c3c5da2d36703bbb makes the likelyhood of corruption very small (I also notice I get 320fps vs 960fps with master).

Due to the time taken to reproduce it's going to be quite hard to find a guilty commit easily, though over time, if I have time I'll try.

Perhaps someone with a PCIE card could try to reproduce - it seems easier with current master to trigger it.
Comment 1 Andy Furniss 2009-10-23 07:08:20 UTC 
Created attachment 30637 [details]
gloss corruption end
Comment 2 Andy Furniss 2009-10-23 07:09:34 UTC 
Created attachment 30638 [details]
gloss corruption side
Comment 3 Andy Furniss 2012-11-04 21:38:34 UTC 
Closing - ancient - R600 Classic long gone

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.