Bug 90203

Summary: [gen3] Xorg GPU hang with 4.0 kernel
Product: DRI Reporter: John Tarin <jtarin>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED DUPLICATE QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: major    
Priority: medium CC: intel-gfx-bugs
Version: XOrg git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: G33 i915 features: GPU hang
Attachments:
Description Flags
GPU crash dump none

Description John Tarin 2015-04-27 19:44:39 UTC 
Created attachment 115386 [details]
GPU crash dump

(First occasion with 4.0 kernel running 2 weeks)

[drm] GPU HANG: ecode 3:0:0x0071e0c0, in Xorg [2106], reason: Ring hung, action: reset
Comment 1 Chris Wilson 2015-04-27 20:22:37 UTC 
The crash occurs on the instruction to set a colour buffer (with Y-tiling) that is currently being fenced with X.  It is used earlier in the batch as a Y-tiled texture. The hang could be at the pipeline stall at the end of that sampling - hard to say for sure. At any rate, that we have a dirty fence register seems to be the most likely explanation.
Comment 2 Chris Wilson 2016-08-19 09:23:40 UTC 

*** This bug has been marked as a duplicate of bug 90841 ***

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