[igt-dev] [PATCH i-g-t] syncobj_timeline: Tell the compiler to read from the thread

[igt-dev] [PATCH i-g-t] syncobj_timeline: Tell the compiler to read from the thread

[Chris Wilson]

32bits-limit waits for the thread to indicate it has started by busy
spinning on a common variable. The compiler is clever and knows that the
variable cannot change within the thread, and turns it into an infinite
loop!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
---
 tests/syncobj_timeline.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/syncobj_timeline.c b/tests/syncobj_timeline.c
index be7dd2d1c..20375cdd3 100644
--- a/tests/syncobj_timeline.c
+++ b/tests/syncobj_timeline.c
@@ -1245,9 +1245,11 @@ test_32bits_limit(int fd)
 	uint64_t value, last_value;
 	int i;
 
-	igt_assert_eq(pthread_create(&thread, NULL, checker_thread_func, &thread_data), 0);
+	igt_assert_eq(pthread_create(&thread, NULL,
+				     checker_thread_func, &thread_data), 0);
 
-	while (!thread_data.started);
+	while (!READ_ONCE(thread_data.started))
+		;
 
 	for (i = 0; i < ARRAY_SIZE(points); i++) {
 		int fence = sw_sync_timeline_create_fence(timeline, i + 1);
-- 
2.28.0

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Re: [igt-dev] [PATCH i-g-t] syncobj_timeline: Tell the compiler to read from the thread

[Lionel Landwerlin]

On 06/08/2020 18:19, Chris Wilson wrote:
> 32bits-limit waits for the thread to indicate it has started by busy
> spinning on a common variable. The compiler is clever and knows that the
> variable cannot change within the thread, and turns it into an infinite
> loop!
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>


Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

> ---
>   tests/syncobj_timeline.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/tests/syncobj_timeline.c b/tests/syncobj_timeline.c
> index be7dd2d1c..20375cdd3 100644
> --- a/tests/syncobj_timeline.c
> +++ b/tests/syncobj_timeline.c
> @@ -1245,9 +1245,11 @@ test_32bits_limit(int fd)
>   	uint64_t value, last_value;
>   	int i;
>   
> -	igt_assert_eq(pthread_create(&thread, NULL, checker_thread_func, &thread_data), 0);
> +	igt_assert_eq(pthread_create(&thread, NULL,
> +				     checker_thread_func, &thread_data), 0);
>   
> -	while (!thread_data.started);
> +	while (!READ_ONCE(thread_data.started))
> +		;
>   
>   	for (i = 0; i < ARRAY_SIZE(points); i++) {
>   		int fence = sw_sync_timeline_create_fence(timeline, i + 1);


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[igt-dev] ✓ Fi.CI.BAT: success for syncobj_timeline: Tell the compiler to read from the thread

[Patchwork]

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== Series Details ==

Series: syncobj_timeline: Tell the compiler to read from the thread
URL   : https://patchwork.freedesktop.org/series/80352/
State : success

== Summary ==

CI Bug Log - changes from IGT_5762 -> IGTPW_4863
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/index.html

Known issues
------------

  Here are the changes found in IGTPW_4863 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_module_load@reload:
    - fi-byt-j1900:       [PASS][1] -> [DMESG-WARN][2] ([i915#1982]) +1 similar issue
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-byt-j1900/igt@i915_module_load@reload.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-byt-j1900/igt@i915_module_load@reload.html
    - fi-tgl-y:           [PASS][3] -> [DMESG-WARN][4] ([i915#1982])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-tgl-y/igt@i915_module_load@reload.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-tgl-y/igt@i915_module_load@reload.html

  * igt@i915_selftest@live@gt_lrc:
    - fi-tgl-u2:          [PASS][5] -> [DMESG-FAIL][6] ([i915#1233])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-tgl-u2/igt@i915_selftest@live@gt_lrc.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-tgl-u2/igt@i915_selftest@live@gt_lrc.html

  * igt@vgem_basic@setversion:
    - fi-tgl-y:           [PASS][7] -> [DMESG-WARN][8] ([i915#402]) +1 similar issue
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-tgl-y/igt@vgem_basic@setversion.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-tgl-y/igt@vgem_basic@setversion.html

  
#### Possible fixes ####

  * igt@i915_module_load@reload:
    - fi-apl-guc:         [DMESG-WARN][9] ([i915#1635] / [i915#1982]) -> [PASS][10] +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-apl-guc/igt@i915_module_load@reload.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-apl-guc/igt@i915_module_load@reload.html

  * igt@i915_pm_rpm@module-reload:
    - {fi-kbl-7560u}:     [WARN][11] ([i915#2249]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-kbl-7560u/igt@i915_pm_rpm@module-reload.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-kbl-7560u/igt@i915_pm_rpm@module-reload.html

  * igt@i915_selftest@live@coherency:
    - fi-gdg-551:         [DMESG-FAIL][13] ([i915#1748]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-gdg-551/igt@i915_selftest@live@coherency.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-gdg-551/igt@i915_selftest@live@coherency.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - {fi-kbl-7560u}:     [DMESG-WARN][15] ([i915#1982]) -> [PASS][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-kbl-7560u/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-kbl-7560u/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1:
    - fi-icl-u2:          [DMESG-WARN][17] ([i915#1982]) -> [PASS][18] +1 similar issue
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1.html

  * igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2:
    - fi-skl-guc:         [DMESG-WARN][19] ([i915#2203]) -> [PASS][20]
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-skl-guc/igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-skl-guc/igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2.html

  * igt@prime_self_import@basic-with_two_bos:
    - fi-tgl-y:           [DMESG-WARN][21] ([i915#402]) -> [PASS][22] +1 similar issue
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-tgl-y/igt@prime_self_import@basic-with_two_bos.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-tgl-y/igt@prime_self_import@basic-with_two_bos.html

  
#### Warnings ####

  * igt@kms_force_connector_basic@force-edid:
    - fi-kbl-x1275:       [DMESG-WARN][23] ([i915#62] / [i915#92]) -> [DMESG-WARN][24] ([i915#62] / [i915#92] / [i915#95]) +2 similar issues
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence:
    - fi-kbl-x1275:       [DMESG-WARN][25] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][26] ([i915#62] / [i915#92]) +1 similar issue
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/fi-kbl-x1275/igt@kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/fi-kbl-x1275/igt@kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [i915#1233]: https://gitlab.freedesktop.org/drm/intel/issues/1233
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#1748]: https://gitlab.freedesktop.org/drm/intel/issues/1748
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2203]: https://gitlab.freedesktop.org/drm/intel/issues/2203
  [i915#2249]: https://gitlab.freedesktop.org/drm/intel/issues/2249
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (45 -> 38)
------------------------------

  Missing    (7): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-ctg-p8600 fi-byt-clapper fi-bdw-samus 


Build changes
-------------

  * CI: CI-20190529 -> None
  * IGT: IGT_5762 -> IGTPW_4863

  CI-20190529: 20190529
  CI_DRM_8848: f39035176cb854c6d620af7614a60a485ee26818 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_4863: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/index.html
  IGT_5762: ec3d9a843686a618612016de9249117dd8d862a8 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/index.html

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[igt-dev] ✗ Fi.CI.IGT: failure for syncobj_timeline: Tell the compiler to read from the thread

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 19996 bytes --]

== Series Details ==

Series: syncobj_timeline: Tell the compiler to read from the thread
URL   : https://patchwork.freedesktop.org/series/80352/
State : failure

== Summary ==

CI Bug Log - changes from IGT_5762_full -> IGTPW_4863_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with IGTPW_4863_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in IGTPW_4863_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/index.html

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in IGTPW_4863_full:

### IGT changes ###

#### Possible regressions ####

  * igt@i915_pm_rpm@gem-mmap-type@gtt:
    - shard-tglb:         [PASS][1] -> [INCOMPLETE][2] +1 similar issue
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb5/igt@i915_pm_rpm@gem-mmap-type@gtt.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb8/igt@i915_pm_rpm@gem-mmap-type@gtt.html

  
Known issues
------------

  Here are the changes found in IGTPW_4863_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_sync@basic-all:
    - shard-glk:          [PASS][3] -> [DMESG-WARN][4] ([i915#118] / [i915#95]) +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk8/igt@gem_sync@basic-all.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk4/igt@gem_sync@basic-all.html

  * igt@i915_selftest@mock@contexts:
    - shard-apl:          [PASS][5] -> [INCOMPLETE][6] ([i915#1635])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl3/igt@i915_selftest@mock@contexts.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl7/igt@i915_selftest@mock@contexts.html

  * igt@kms_cursor_crc@pipe-c-cursor-256x256-sliding:
    - shard-apl:          [PASS][7] -> [FAIL][8] ([i915#1635] / [i915#54])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl2/igt@kms_cursor_crc@pipe-c-cursor-256x256-sliding.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x256-sliding.html
    - shard-kbl:          [PASS][9] -> [FAIL][10] ([i915#54])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-kbl7/igt@kms_cursor_crc@pipe-c-cursor-256x256-sliding.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-kbl1/igt@kms_cursor_crc@pipe-c-cursor-256x256-sliding.html

  * igt@kms_cursor_edge_walk@pipe-c-64x64-right-edge:
    - shard-hsw:          [PASS][11] -> [TIMEOUT][12] ([i915#1958]) +2 similar issues
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw6/igt@kms_cursor_edge_walk@pipe-c-64x64-right-edge.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw6/igt@kms_cursor_edge_walk@pipe-c-64x64-right-edge.html

  * igt@kms_cursor_legacy@flip-vs-cursor-crc-legacy:
    - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#1635] / [i915#1982]) +3 similar issues
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl3/igt@kms_cursor_legacy@flip-vs-cursor-crc-legacy.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl2/igt@kms_cursor_legacy@flip-vs-cursor-crc-legacy.html
    - shard-kbl:          [PASS][15] -> [DMESG-WARN][16] ([i915#1982])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-kbl7/igt@kms_cursor_legacy@flip-vs-cursor-crc-legacy.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-kbl1/igt@kms_cursor_legacy@flip-vs-cursor-crc-legacy.html

  * igt@kms_flip@flip-vs-suspend-interruptible@a-dp1:
    - shard-kbl:          [PASS][17] -> [DMESG-WARN][18] ([i915#180]) +4 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-kbl4/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-kbl7/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html

  * igt@kms_frontbuffer_tracking@fbc-1p-shrfb-fliptrack:
    - shard-glk:          [PASS][19] -> [FAIL][20] ([i915#49])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk2/igt@kms_frontbuffer_tracking@fbc-1p-shrfb-fliptrack.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk5/igt@kms_frontbuffer_tracking@fbc-1p-shrfb-fliptrack.html

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-indfb-draw-blt:
    - shard-tglb:         [PASS][21] -> [DMESG-WARN][22] ([i915#1982]) +4 similar issues
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb1/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-indfb-draw-blt.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb3/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-indfb-draw-blt.html

  * igt@kms_hdmi_inject@inject-audio:
    - shard-tglb:         [PASS][23] -> [SKIP][24] ([i915#433])
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb7/igt@kms_hdmi_inject@inject-audio.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb5/igt@kms_hdmi_inject@inject-audio.html

  * igt@kms_psr2_su@frontbuffer:
    - shard-iclb:         [PASS][25] -> [SKIP][26] ([fdo#109642] / [fdo#111068])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb2/igt@kms_psr2_su@frontbuffer.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb3/igt@kms_psr2_su@frontbuffer.html

  * igt@kms_psr@psr2_primary_blt:
    - shard-iclb:         [PASS][27] -> [SKIP][28] ([fdo#109441]) +1 similar issue
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb2/igt@kms_psr@psr2_primary_blt.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb1/igt@kms_psr@psr2_primary_blt.html

  * igt@perf_pmu@other-read-4:
    - shard-snb:          [PASS][29] -> [TIMEOUT][30] ([i915#1958]) +1 similar issue
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-snb5/igt@perf_pmu@other-read-4.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-snb1/igt@perf_pmu@other-read-4.html

  * igt@prime_busy@after-wait@vcs0:
    - shard-hsw:          [PASS][31] -> [FAIL][32] ([i915#2258]) +4 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw4/igt@prime_busy@after-wait@vcs0.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw2/igt@prime_busy@after-wait@vcs0.html

  
#### Possible fixes ####

  * igt@device_reset@unbind-reset-rebind:
    - shard-iclb:         [DMESG-WARN][33] ([i915#1982]) -> [PASS][34]
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb3/igt@device_reset@unbind-reset-rebind.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb7/igt@device_reset@unbind-reset-rebind.html

  * igt@gem_exec_whisper@basic-queues-priority:
    - shard-glk:          [DMESG-WARN][35] ([i915#118] / [i915#95]) -> [PASS][36]
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk4/igt@gem_exec_whisper@basic-queues-priority.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk4/igt@gem_exec_whisper@basic-queues-priority.html

  * igt@i915_pm_dc@dc5-psr:
    - shard-iclb:         [FAIL][37] ([i915#1899]) -> [PASS][38]
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb5/igt@i915_pm_dc@dc5-psr.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb7/igt@i915_pm_dc@dc5-psr.html
    - shard-tglb:         [FAIL][39] ([i915#1899]) -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb3/igt@i915_pm_dc@dc5-psr.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb8/igt@i915_pm_dc@dc5-psr.html

  * igt@kms_big_fb@y-tiled-64bpp-rotate-180:
    - shard-glk:          [DMESG-FAIL][41] ([i915#118] / [i915#95]) -> [PASS][42] +1 similar issue
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk8/igt@kms_big_fb@y-tiled-64bpp-rotate-180.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk5/igt@kms_big_fb@y-tiled-64bpp-rotate-180.html

  * igt@kms_color@pipe-a-ctm-max:
    - shard-kbl:          [FAIL][43] ([i915#168]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-kbl2/igt@kms_color@pipe-a-ctm-max.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-kbl1/igt@kms_color@pipe-a-ctm-max.html
    - shard-apl:          [FAIL][45] ([i915#1635] / [i915#168]) -> [PASS][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl3/igt@kms_color@pipe-a-ctm-max.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl6/igt@kms_color@pipe-a-ctm-max.html

  * igt@kms_flip@flip-vs-expired-vblank@a-hdmi-a2:
    - shard-glk:          [FAIL][47] ([i915#79]) -> [PASS][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk6/igt@kms_flip@flip-vs-expired-vblank@a-hdmi-a2.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk1/igt@kms_flip@flip-vs-expired-vblank@a-hdmi-a2.html

  * igt@kms_frontbuffer_tracking@fbc-2p-scndscrn-spr-indfb-draw-pwrite:
    - shard-glk:          [FAIL][49] ([i915#49]) -> [PASS][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk6/igt@kms_frontbuffer_tracking@fbc-2p-scndscrn-spr-indfb-draw-pwrite.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk5/igt@kms_frontbuffer_tracking@fbc-2p-scndscrn-spr-indfb-draw-pwrite.html

  * igt@kms_frontbuffer_tracking@fbc-stridechange:
    - shard-glk:          [DMESG-WARN][51] ([i915#1982]) -> [PASS][52] +1 similar issue
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk1/igt@kms_frontbuffer_tracking@fbc-stridechange.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk4/igt@kms_frontbuffer_tracking@fbc-stridechange.html

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-shrfb-draw-mmap-wc:
    - shard-tglb:         [DMESG-WARN][53] ([i915#1982]) -> [PASS][54] +2 similar issues
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb5/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-shrfb-draw-mmap-wc.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb3/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-pri-shrfb-draw-mmap-wc.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-kbl:          [DMESG-WARN][55] ([i915#180]) -> [PASS][56]
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-kbl2/igt@kms_hdr@bpc-switch-suspend.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-kbl2/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_panel_fitting@atomic-fastset:
    - shard-tglb:         [FAIL][57] ([i915#83]) -> [PASS][58]
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb2/igt@kms_panel_fitting@atomic-fastset.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb2/igt@kms_panel_fitting@atomic-fastset.html
    - shard-iclb:         [FAIL][59] ([i915#83]) -> [PASS][60]
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb7/igt@kms_panel_fitting@atomic-fastset.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb5/igt@kms_panel_fitting@atomic-fastset.html

  * igt@kms_psr2_su@page_flip:
    - shard-iclb:         [SKIP][61] ([fdo#109642] / [fdo#111068]) -> [PASS][62]
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb7/igt@kms_psr2_su@page_flip.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb2/igt@kms_psr2_su@page_flip.html

  * igt@kms_psr@psr2_cursor_render:
    - shard-iclb:         [SKIP][63] ([fdo#109441]) -> [PASS][64] +3 similar issues
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb5/igt@kms_psr@psr2_cursor_render.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb2/igt@kms_psr@psr2_cursor_render.html

  * igt@kms_vblank@pipe-a-ts-continuation-modeset-hang:
    - shard-hsw:          [INCOMPLETE][65] -> [PASS][66]
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw7/igt@kms_vblank@pipe-a-ts-continuation-modeset-hang.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw7/igt@kms_vblank@pipe-a-ts-continuation-modeset-hang.html

  * igt@kms_vblank@pipe-b-ts-continuation-modeset-hang:
    - shard-apl:          [DMESG-WARN][67] ([i915#1635] / [i915#1982]) -> [PASS][68]
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl8/igt@kms_vblank@pipe-b-ts-continuation-modeset-hang.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl2/igt@kms_vblank@pipe-b-ts-continuation-modeset-hang.html

  * igt@prime_busy@before-wait@rcs0:
    - shard-hsw:          [FAIL][69] ([i915#2258]) -> [PASS][70]
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw6/igt@prime_busy@before-wait@rcs0.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw7/igt@prime_busy@before-wait@rcs0.html

  * {igt@syncobj_timeline@32bits-limit}:
    - shard-hsw:          [TIMEOUT][71] ([i915#1958]) -> [PASS][72] +3 similar issues
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw7/igt@syncobj_timeline@32bits-limit.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw2/igt@syncobj_timeline@32bits-limit.html
    - shard-snb:          [TIMEOUT][73] ([i915#1958]) -> [PASS][74]
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-snb2/igt@syncobj_timeline@32bits-limit.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-snb2/igt@syncobj_timeline@32bits-limit.html
    - shard-tglb:         [TIMEOUT][75] ([i915#1958]) -> [PASS][76]
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-tglb6/igt@syncobj_timeline@32bits-limit.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-tglb2/igt@syncobj_timeline@32bits-limit.html
    - shard-glk:          [TIMEOUT][77] ([i915#1958]) -> [PASS][78]
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-glk1/igt@syncobj_timeline@32bits-limit.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-glk2/igt@syncobj_timeline@32bits-limit.html
    - shard-iclb:         [TIMEOUT][79] ([i915#1958]) -> [PASS][80]
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb4/igt@syncobj_timeline@32bits-limit.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb7/igt@syncobj_timeline@32bits-limit.html
    - shard-apl:          [TIMEOUT][81] ([i915#1635] / [i915#1958]) -> [PASS][82]
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl1/igt@syncobj_timeline@32bits-limit.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl6/igt@syncobj_timeline@32bits-limit.html
    - shard-kbl:          [TIMEOUT][83] ([i915#1958]) -> [PASS][84]
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-kbl7/igt@syncobj_timeline@32bits-limit.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-kbl4/igt@syncobj_timeline@32bits-limit.html

  
#### Warnings ####

  * igt@gem_exec_reloc@basic-concurrent16:
    - shard-snb:          [FAIL][85] ([i915#1930]) -> [TIMEOUT][86] ([i915#1958])
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-snb5/igt@gem_exec_reloc@basic-concurrent16.html
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-snb1/igt@gem_exec_reloc@basic-concurrent16.html

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-iclb:         [SKIP][87] ([i915#588]) -> [SKIP][88] ([i915#658])
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-iclb7/igt@i915_pm_dc@dc3co-vpb-simulation.html

  * igt@kms_chamelium@common-hpd-after-suspend:
    - shard-hsw:          [TIMEOUT][89] ([i915#1958]) -> [SKIP][90] ([fdo#109271] / [fdo#111827])
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw4/igt@kms_chamelium@common-hpd-after-suspend.html
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw1/igt@kms_chamelium@common-hpd-after-suspend.html

  * igt@kms_plane_lowres@pipe-c-tiling-y:
    - shard-snb:          [SKIP][91] ([fdo#109271]) -> [TIMEOUT][92] ([i915#1958]) +3 similar issues
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-snb6/igt@kms_plane_lowres@pipe-c-tiling-y.html
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-snb1/igt@kms_plane_lowres@pipe-c-tiling-y.html
    - shard-hsw:          [SKIP][93] ([fdo#109271]) -> [TIMEOUT][94] ([i915#1958]) +1 similar issue
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-hsw6/igt@kms_plane_lowres@pipe-c-tiling-y.html
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-hsw6/igt@kms_plane_lowres@pipe-c-tiling-y.html

  * igt@runner@aborted:
    - shard-apl:          [FAIL][95] ([fdo#109271] / [i915#1635] / [i915#716]) -> ([FAIL][96], [FAIL][97]) ([fdo#109271] / [i915#1635] / [i915#2110] / [i915#716])
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5762/shard-apl7/igt@runner@aborted.html
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl6/igt@runner@aborted.html
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/shard-apl7/igt@runner@aborted.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#109642]: https://bugs.freedesktop.org/show_bug.cgi?id=109642
  [fdo#111068]: https://bugs.freedesktop.org/show_bug.cgi?id=111068
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#168]: https://gitlab.freedesktop.org/drm/intel/issues/168
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1899]: https://gitlab.freedesktop.org/drm/intel/issues/1899
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2110]: https://gitlab.freedesktop.org/drm/intel/issues/2110
  [i915#2258]: https://gitlab.freedesktop.org/drm/intel/issues/2258
  [i915#433]: https://gitlab.freedesktop.org/drm/intel/issues/433
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
  [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#83]: https://gitlab.freedesktop.org/drm/intel/issues/83
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (8 -> 8)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * CI: CI-20190529 -> None
  * IGT: IGT_5762 -> IGTPW_4863

  CI-20190529: 20190529
  CI_DRM_8848: f39035176cb854c6d620af7614a60a485ee26818 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_4863: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/index.html
  IGT_5762: ec3d9a843686a618612016de9249117dd8d862a8 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4863/index.html

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