Bug 94005

Summary: [KBL] igt/gem_ctx_thrash subtests are crash
Product: DRI Reporter: Olivier Berthier <olivierx.berthier>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: DRI git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg log none

Description Olivier Berthier 2016-02-04 17:05:34 UTC 
Created attachment 121525 [details]
dmesg log

Setup:
------
Hardware
Platform: KABY LAKE-U 
CPU : Intel(R) Core(TM) @ 2.60GHz
MCP : KBL-U G0 2+2 (ou ULT-G0)
QDF : QYQ8
Chipset PCH: SPT-LP C1 
CRB : KABY LAKE U DDR3L RVP7 CRB FAB1
Software
BIOS : KBLSE2R1.R00.X015.B01.1511271314
ME FW : 11.5.0.1008
Ksc (EC FW): 1.20
Linux distribution: Ubuntu 15.10 64 bits
Kernel: drm-intel-nightly 4.5.0-rc1 5d3deb0 from http://cgit.freedesktop.org/drm-intel/
commit 5d3deb0902a962218ad9b0e583e4d1bbdec29f9a
Author: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date:   Mon Feb 1 12:05:18 2016 -0800

    drm-intel-nightly: 2016y-02m-01d-20h-05m-03s UTC integration manifest

drm: tag libdrm-2.4.66 e342c0f
intel-gpu-tool: intel-gpu-tools-1.13-179-g3005665


Steps:
------
run the command :
#  ./gem_ctx_thrash

Actual result:
---------------
The subtests crash.

Expected result:
----------------
The results are pass or skip.
Comment 1 Chris Wilson 2016-02-05 09:13:15 UTC 
Replace the integer overflow with a scaling issue instead!

commit e7faf33ec791b78b2bf1ebb81be228364c3439c4
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Feb 4 22:18:33 2016 +0000

    igt/gem_ctx_thrash: Rewrite to avoid extraneous allocations
    
    The goal of the test is to exercise what happens when we fill the Global
    GTT with the contexts. To that end, we only need to allocate 2/4GiB of
    context objects, and can forgo filling each context with buffers.
    
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94005
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Comment 2 Jari Tahvanainen 2017-07-03 15:39:24 UTC 
Closing >1 year old resolved+fixed.

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