Bug 84358 - [BDW Regression]igt/gem_render_copy_redux/flink-interruptible causes system hang
Summary: [BDW Regression]igt/gem_render_copy_redux/flink-interruptible causes system hang
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: Other All
: highest normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-09-26 08:45 UTC by Guo Jinxian
Modified: 2017-02-10 08:53 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments

Description Guo Jinxian 2014-09-26 08:45:17 UTC 
==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued: 648fb42d1e77cf90cddea2b1cf1f4ac4453e65e6

Non-working platforms: BSW

==kernel==
--------------------------
origin/drm-intel-nightly: 7101d84020f63f1da7e0c5d021cdd6be4d515de5(fails)
    drm-intel-nightly: 2014y-09m-25d-15h-14m-02s UTC integration manifest
origin/drm-intel-next-queued: 7ca5a41f4da201371e131fc0641033652f76bf30(fails)
    drm/i915: Avoid re-configure panel on every PSR re-enable.
origin/drm-intel-fixes: c84db77010877da6c5da119868ed54c43d59e726(fails)
    drm/i915/hdmi: fix hdmi audio state readout

==Bug detailed description==
-----------------------------
igt/gem_render_copy_redux/flink-interruptible causes system hang

unable to get dmesg because system hang.

==Reproduce steps==
---------------------------- 
1. ./gem_render_copy_redux --run-subtest flink-interruptible
Comment 1 Chris Wilson 2014-09-26 08:49:20 UTC 

*** This bug has been marked as a duplicate of bug 84207 ***
Comment 2 Guo Jinxian 2014-10-08 06:23:10 UTC 
This bug still able to reproduce on BDW


[root@x-bdw01 tests]# time ./gem_render_copy_redux --run-subtest flink-interruptible
IGT-Version: 1.8-gf33fa71 (x86_64) (Linux: 3.17.0-rc7_drm-intel-fixes_91e564_20141006+ x86_64)
Subtest flink-interruptible: SUCCESS (0.521s)



^C
Comment 3 Chris Wilson 2014-10-08 06:28:50 UTC 
The fix

commit e9681366ea9e76ab8f75e84351f2f3ca63ee542c
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Fri Sep 26 10:31:02 2014 +0100

    drm/i915: Do not store the error pointer for a failed userptr registration

is not in -fixes.
Comment 4 Jani Nikula 2014-10-08 06:57:18 UTC 
It's in drm-intel-next-fixes, queued for v3.18:

http://mid.gmane.org/20140929132041.GP4109@phenom.ffwll.local
Comment 5 Guo Jinxian 2014-10-13 03:23:10 UTC 
Verified on latest -nightly(ead7d71357628dc1231535886ec09853e9164d6d)


root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time ./gem_render_copy_redux --run-subtest flink-interruptible
IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux: 3.17.0_drm-intel-nightly_ead7d7_20141013+ x86_64)
Subtest flink-interruptible: SUCCESS (0.425s)

real    0m0.730s
user    0m0.074s
sys     0m0.270s
Comment 6 Jari Tahvanainen 2017-02-10 08:53:24 UTC 
Closing (>2 years) old Verified+Fixed.

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