Bug 111748

Summary: [SKL/Iris] Random asserts in SynMark Multithread test: "pipe_reference_described: Assertion `count != -1' failed"
Product: Mesa Reporter: Eero Tamminen <eero.t.tamminen>
Component: Drivers/Gallium/IrisAssignee: Intel 3D Bugs Mailing List <intel-3d-bugs>
Status: RESOLVED MOVED QA Contact: Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity: not set    
Priority: not set Keywords: regression
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
See Also: https://bugs.freedesktop.org/show_bug.cgi?id=111385
Whiteboard:
i915 platform: i915 features:

Description Eero Tamminen 2019-09-19 11:11:50 UTC 
Setup:
* HW: SKL GT2 i5-6600K
* OS: Ubuntu 18.04
* SW: Git versions of drm-tip kernel, X server, SynMark2 v7.0
* Mesa: 68820007fddbb5b79f1b2b08e66ef14092053a95 (2019-09-18 15:16:36 radv: fix loading 64-bit GS inputs)

Test-case:
* Run multiple times:
  ./synmark2 OglMultithread

Expected outcome:
* Works fine, as with i965 driver

Actual outcome:
* Half of the runs hit following assert:
  src/gallium/auxiliary/util/u_inlines.h:87:pipe_reference_described: Assertion `count != -1' failed.

Because of bug 111385, I don't know when this issue started.  That may also have been affected by enabling VT-d (which allows kernel to enable GPU IOMMU).
Comment 1 GitLab Migration User 2019-09-25 18:47:57 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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