Bug 89000

Summary:	[BDW ppgtt Bisected]igt/gem_evict_everything/major-hang causes system hang
Product:	DRI	Reporter:	lu hua <huax.lu>
Component:	DRM/Intel	Assignee:	Nick Hoath <nicholas.hoath>
Status:	CLOSED DUPLICATE	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	critical
Priority:	high	CC:	intel-gfx-bugs
Version:	unspecified
Hardware:	All
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description lu hua 2015-02-06 03:13:29 UTC

==System Environment==
--------------------------
Regression: yes
good commit: 1d83d957e621f160dfe0f08194e9c2fdd5fa7f3e
bad commit: 93180785d44e3d417099e293b9ff6eeb4fd20aa2

no-working platforms: BDW

==kernel==
--------------------------
drm-intel-nightly/9583cb470cd82997b5f23d4acab852563f5c0047
commit 9583cb470cd82997b5f23d4acab852563f5c0047
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Feb 4 15:22:12 2015 +0100

    drm-intel-nightly: 2015y-02m-04d-14h-21m-52s UTC integration manifest

==Bug detailed description==
-----------------------------
It causes system hang, add i915.enable_ppgtt=0, it works well. bug 88652 tracks BSW, report this bug to track BDW.

output:
IGT-Version: 1.9-gbef692d (x86_64) (Linux: 3.19.0-rc7_drm-intel-nightly_75ce8a_20150206+ x86_64)
Test requirement not met in function intel_require_memory, file intel_os.c:244:
Test requirement: !(total <= required)
Estimated that we need 12884905984 bytes for the test, but only have 3915382784 bytes available (RAM)
Subtest major-hang: SKIP (0.012s)

==Reproduce steps==
---------------------------- 
1. ./gem_evict_everything --run-subtest major-hang

Comment 1 lu hua 2015-02-06 03:15:15 UTC

> ==Bug detailed description==
> -----------------------------
> It causes system hang, add i915.enable_ppgtt=0, it works well. bug 88652

Add i915.enable_execlists=0, it works well.

Comment 2 lu hua 2015-02-09 06:26:26 UTC

add  i915.enable_ppgtt=0, It works well.

Comment 3 lu hua 2015-02-09 07:02:41 UTC

Bisect shows: 6d3d8274bc45de4babb62d64562d92af984dd238 is the first bad commit.
commit 6d3d8274bc45de4babb62d64562d92af984dd238
Author:     Nick Hoath <nicholas.hoath@intel.com>
AuthorDate: Thu Jan 15 13:10:39 2015 +0000
Commit:     Daniel Vetter <daniel.vetter@ffwll.ch>
CommitDate: Tue Jan 27 09:50:53 2015 +0100

    drm/i915: Subsume intel_ctx_submit_request in to drm_i915_gem_request

    Move all remaining elements that were unique to execlists queue items
    in to the associated request.

    Issue: VIZ-4274

    v2: Rebase. Fixed issue of overzealous freeing of request.
    v3: Removed re-addition of cleanup work queue (found by Daniel Vetter)
    v4: Rebase.
    v5: Actual removal of intel_ctx_submit_request. Update both tail and postfix
    pointer in __i915_add_request (found by Thomas Daniel)
    v6: Removed unrelated changes

    Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
    Reviewed-by: Thomas Daniel <thomas.daniel@intel.com>
    [danvet: Reformat comment with strange linebreaks.]
    Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Comment 4 Jani Nikula 2015-02-10 08:18:48 UTC


*** This bug has been marked as a duplicate of bug 88652 ***

Comment 5 lu hua 2015-03-09 08:21:37 UTC

Fixed.
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./gem_evict_everything --run-subtest major-hang
IGT-Version: 1.9-g5e4fc0c (x86_64) (Linux: 4.0.0-rc2_drm-intel-nightly_c2f6e5_20150307+ x86_64)
Test requirement not met in function intel_require_memory, file intel_os.c:244:
Test requirement: !(total <= required)
Estimated that we need 12884905984 bytes for the test, but only have 3914334208 bytes available (RAM)
Subtest major-hang: SKIP (0.013s)
Received signal SIGTERM.
Received signal SIGTERM.
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# echo $?
77

Comment 6 Jari Tahvanainen 2017-08-14 08:34:13 UTC

Moving old bug from Verified to Closed.

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