[Intel-gfx] [PATCH] drm/i915/selftests: Prevent selecting 0 for our random width/align

[Intel-gfx] [PATCH] drm/i915/selftests: Prevent selecting 0 for our random width/align

[Chris Wilson]

When igt_random_offset() is a given a range of [0, PAGE_SIZE], it is
allowed to return 0. However, attempting to use a size of 0 for the
igt_lmem_write_cpu() byte poking, leads to call igt_random_offset() with
a range of [offset, offset + 0] and ask it to find a length of 4 within
it. This triggers the bug on that the requested length should fit within
the range!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
---
 drivers/gpu/drm/i915/selftests/intel_memory_region.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..32a199b8df8a 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -522,9 +522,10 @@ static int igt_lmem_write_cpu(void *arg)
 		goto out_unpin;
 	}
 
-	/* We want to throw in a random width/align */
-	bytes[0] = igt_random_offset(&prng, 0, PAGE_SIZE, sizeof(u32),
-				     sizeof(u32));
+	/* A random multiple of u32, picked between [64, PAGE_SIZE - 64] */
+	bytes[0] = prandom_u32_state(&prng);
+	bytes[0] = round_up(bytes[0], 64) & (PAGE_SIZE - 1);
+	GEM_BUG_ON(!IS_ALIGNED(bytes[0], sizeof(u32)));
 
 	i = 0;
 	do {
-- 
2.20.1

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[Intel-gfx] [PATCH] drm/i915/selftests: Prevent selecting 0 for our random width/align

[Chris Wilson]

When igt_random_offset() is a given a range of [0, PAGE_SIZE], it is
allowed to return 0. However, attempting to use a size of 0 for the
igt_lmem_write_cpu() byte poking, leads to call igt_random_offset() with
a range of [offset, offset + 0] and ask it to find a length of 4 within
it. This triggers the bug on that the requested length should fit within
the range!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
---
I feel into the same trap of not fixing up the random return of 0
---
 drivers/gpu/drm/i915/selftests/intel_memory_region.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..54e683bb220b 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -522,9 +522,10 @@ static int igt_lmem_write_cpu(void *arg)
 		goto out_unpin;
 	}
 
-	/* We want to throw in a random width/align */
-	bytes[0] = igt_random_offset(&prng, 0, PAGE_SIZE, sizeof(u32),
-				     sizeof(u32));
+	/* A random multiple of u32, picked between [64, PAGE_SIZE - 64] */
+	bytes[0] = 1 + prandom_u32_state(&prng);
+	bytes[0] = round_up(bytes[0], 64) & (PAGE_SIZE - 1);
+	GEM_BUG_ON(!IS_ALIGNED(bytes[0], sizeof(u32)));
 
 	i = 0;
 	do {
-- 
2.20.1

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Re: [Intel-gfx] [PATCH] drm/i915/selftests: Prevent selecting 0 for our random width/align

[Chris Wilson]

Quoting Chris Wilson (2020-08-06 15:35:36)
> When igt_random_offset() is a given a range of [0, PAGE_SIZE], it is
> allowed to return 0. However, attempting to use a size of 0 for the
> igt_lmem_write_cpu() byte poking, leads to call igt_random_offset() with
> a range of [offset, offset + 0] and ask it to find a length of 4 within
> it. This triggers the bug on that the requested length should fit within
> the range!
> 
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld@intel.com>
> ---
> I feel into the same trap of not fixing up the random return of 0
> ---
>  drivers/gpu/drm/i915/selftests/intel_memory_region.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
> index 6e80d99048e4..54e683bb220b 100644
> --- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
> +++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
> @@ -522,9 +522,10 @@ static int igt_lmem_write_cpu(void *arg)
>                 goto out_unpin;
>         }
>  
> -       /* We want to throw in a random width/align */
> -       bytes[0] = igt_random_offset(&prng, 0, PAGE_SIZE, sizeof(u32),
> -                                    sizeof(u32));
> +       /* A random multiple of u32, picked between [64, PAGE_SIZE - 64] */
> +       bytes[0] = 1 + prandom_u32_state(&prng);

But what about if it returns -1.

Gah.
-Chris
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[Intel-gfx] [PATCH] drm/i915/selftests: Prevent selecting 0 for our random width/align

[Chris Wilson]

When igt_random_offset() is a given a range of [0, PAGE_SIZE], it is
allowed to return 0. However, attempting to use a size of 0 for the
igt_lmem_write_cpu() byte poking, leads to call igt_random_offset() with
a range of [offset, offset + 0] and ask it to find a length of 4 within
it. This triggers the bug on that the requested length should fit within
the range!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
---
I feel into the same trap of not fixing up the random return of 0.
And then the trap of it returning -1.
---
 drivers/gpu/drm/i915/selftests/intel_memory_region.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 6e80d99048e4..741270fcb6b9 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -522,9 +522,9 @@ static int igt_lmem_write_cpu(void *arg)
 		goto out_unpin;
 	}
 
-	/* We want to throw in a random width/align */
-	bytes[0] = igt_random_offset(&prng, 0, PAGE_SIZE, sizeof(u32),
-				     sizeof(u32));
+	/* A random multiple of u32, picked between [64, PAGE_SIZE - 64] */
+	bytes[0] = igt_random_offset(&prng, 64, PAGE_SIZE - 64, 0, sizeof(u32));
+	GEM_BUG_ON(!IS_ALIGNED(bytes[0], sizeof(u32)));
 
 	i = 0;
 	do {
-- 
2.20.1

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[Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915/selftests: Prevent selecting 0 for our random width/align (rev3)

[Patchwork]

== Series Details ==

Series: drm/i915/selftests: Prevent selecting 0 for our random width/align (rev3)
URL   : https://patchwork.freedesktop.org/series/80348/
State : warning

== Summary ==

$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.0
Fast mode used, each commit won't be checked separately.


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Re: [Intel-gfx] [PATCH] drm/i915/selftests: Prevent selecting 0 for our random width/align

[Matthew Auld]

On 06/08/2020 15:57, Chris Wilson wrote:
> When igt_random_offset() is a given a range of [0, PAGE_SIZE], it is
> allowed to return 0. However, attempting to use a size of 0 for the
> igt_lmem_write_cpu() byte poking, leads to call igt_random_offset() with
> a range of [offset, offset + 0] and ask it to find a length of 4 within
> it. This triggers the bug on that the requested length should fit within
> the range!
> 
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld@intel.com>

Reviewed-by: Matthew Auld <matthew.auld@intel.com>
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[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/selftests: Prevent selecting 0 for our random width/align (rev3)

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 5521 bytes --]

== Series Details ==

Series: drm/i915/selftests: Prevent selecting 0 for our random width/align (rev3)
URL   : https://patchwork.freedesktop.org/series/80348/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8848 -> Patchwork_18315
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/index.html

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

  Here are the changes found in Patchwork_18315 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_module_load@reload:
    - fi-apl-guc:         [PASS][1] -> [DMESG-WARN][2] ([i915#1635] / [i915#1982])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-apl-guc/igt@i915_module_load@reload.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-apl-guc/igt@i915_module_load@reload.html

  * igt@i915_selftest@live@execlists:
    - fi-icl-y:           [PASS][3] -> [INCOMPLETE][4] ([i915#2276])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-icl-y/igt@i915_selftest@live@execlists.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-icl-y/igt@i915_selftest@live@execlists.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-icl-u2:          [PASS][5] -> [DMESG-WARN][6] ([i915#1982])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-icl-u2/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-icl-u2/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2:
    - fi-skl-guc:         [PASS][7] -> [DMESG-WARN][8] ([i915#2203])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-skl-guc/igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-skl-guc/igt@kms_flip@basic-flip-vs-wf_vblank@c-hdmi-a2.html

  
#### Possible fixes ####

  * igt@i915_module_load@reload:
    - fi-byt-j1900:       [DMESG-WARN][9] ([i915#1982]) -> [PASS][10] +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-byt-j1900/igt@i915_module_load@reload.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-byt-j1900/igt@i915_module_load@reload.html
    - fi-tgl-u2:          [DMESG-WARN][11] ([i915#1982]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-tgl-u2/igt@i915_module_load@reload.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-tgl-u2/igt@i915_module_load@reload.html

  * igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1:
    - fi-icl-u2:          [DMESG-WARN][13] ([i915#1982]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1.html

  
#### Warnings ####

  * igt@kms_flip@basic-flip-vs-modeset@a-dp1:
    - fi-kbl-x1275:       [DMESG-WARN][15] ([i915#62] / [i915#92]) -> [DMESG-WARN][16] ([i915#62] / [i915#92] / [i915#95]) +1 similar issue
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-kbl-x1275/igt@kms_flip@basic-flip-vs-modeset@a-dp1.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-kbl-x1275/igt@kms_flip@basic-flip-vs-modeset@a-dp1.html

  * igt@kms_force_connector_basic@force-edid:
    - fi-kbl-x1275:       [DMESG-WARN][17] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][18] ([i915#62] / [i915#92]) +4 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html

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

  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2100]: https://gitlab.freedesktop.org/drm/intel/issues/2100
  [i915#2203]: https://gitlab.freedesktop.org/drm/intel/issues/2203
  [i915#2276]: https://gitlab.freedesktop.org/drm/intel/issues/2276
  [i915#541]: https://gitlab.freedesktop.org/drm/intel/issues/541
  [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 (44 -> 38)
------------------------------

  Additional (1): fi-tgl-y 
  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
-------------

  * Linux: CI_DRM_8848 -> Patchwork_18315

  CI-20190529: 20190529
  CI_DRM_8848: f39035176cb854c6d620af7614a60a485ee26818 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5760: 53d2ddd2f5f7beb98a996d7f2c3976c87d4da01f @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18315: c336a5012f0f1f5b93e83d27a4c577a3c1bc1d1d @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

c336a5012f0f drm/i915/selftests: Prevent selecting 0 for our random width/align

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/index.html

[-- Attachment #1.2: Type: text/html, Size: 6937 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

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[Intel-gfx] ✗ Fi.CI.IGT: failure for drm/i915/selftests: Prevent selecting 0 for our random width/align (rev3)

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 13917 bytes --]

== Series Details ==

Series: drm/i915/selftests: Prevent selecting 0 for our random width/align (rev3)
URL   : https://patchwork.freedesktop.org/series/80348/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_8848_full -> Patchwork_18315_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_18315_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_18315_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  

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

  Here are the unknown changes that may have been introduced in Patchwork_18315_full:

### IGT changes ###

#### Possible regressions ####

  * igt@kms_flip@flip-vs-suspend@a-edp1:
    - shard-skl:          [PASS][1] -> [INCOMPLETE][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl1/igt@kms_flip@flip-vs-suspend@a-edp1.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl6/igt@kms_flip@flip-vs-suspend@a-edp1.html

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

  Here are the changes found in Patchwork_18315_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_ctx_engines@execute-allforone:
    - shard-snb:          [PASS][3] -> [TIMEOUT][4] ([i915#1958]) +2 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-snb6/igt@gem_ctx_engines@execute-allforone.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-snb5/igt@gem_ctx_engines@execute-allforone.html

  * igt@gem_ctx_isolation@preservation-s3@vecs0:
    - shard-kbl:          [PASS][5] -> [DMESG-WARN][6] ([i915#180]) +6 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-kbl4/igt@gem_ctx_isolation@preservation-s3@vecs0.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-kbl4/igt@gem_ctx_isolation@preservation-s3@vecs0.html

  * igt@gem_ctx_persistence@legacy-engines-mixed-process@render:
    - shard-skl:          [PASS][7] -> [FAIL][8] ([i915#1528])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl7/igt@gem_ctx_persistence@legacy-engines-mixed-process@render.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl6/igt@gem_ctx_persistence@legacy-engines-mixed-process@render.html

  * igt@gem_ctx_shared@q-smoketest-all:
    - shard-glk:          [PASS][9] -> [DMESG-WARN][10] ([i915#118] / [i915#95]) +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-glk2/igt@gem_ctx_shared@q-smoketest-all.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-glk5/igt@gem_ctx_shared@q-smoketest-all.html

  * igt@gem_exec_whisper@basic-contexts-forked:
    - shard-iclb:         [PASS][11] -> [DMESG-WARN][12] ([i915#1982]) +1 similar issue
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-iclb4/igt@gem_exec_whisper@basic-contexts-forked.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-iclb2/igt@gem_exec_whisper@basic-contexts-forked.html

  * igt@gen9_exec_parse@allowed-all:
    - shard-glk:          [PASS][13] -> [DMESG-WARN][14] ([i915#1436] / [i915#716])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-glk3/igt@gen9_exec_parse@allowed-all.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-glk8/igt@gen9_exec_parse@allowed-all.html

  * igt@i915_suspend@debugfs-reader:
    - shard-skl:          [PASS][15] -> [INCOMPLETE][16] ([i915#198])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl1/igt@i915_suspend@debugfs-reader.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl5/igt@i915_suspend@debugfs-reader.html

  * igt@kms_big_fb@linear-64bpp-rotate-180:
    - shard-glk:          [PASS][17] -> [DMESG-FAIL][18] ([i915#118] / [i915#95])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-glk4/igt@kms_big_fb@linear-64bpp-rotate-180.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html

  * igt@kms_cursor_edge_walk@pipe-b-256x256-left-edge:
    - shard-skl:          [PASS][19] -> [DMESG-WARN][20] ([i915#1982]) +17 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl1/igt@kms_cursor_edge_walk@pipe-b-256x256-left-edge.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl7/igt@kms_cursor_edge_walk@pipe-b-256x256-left-edge.html

  * igt@kms_cursor_edge_walk@pipe-b-64x64-top-edge:
    - shard-glk:          [PASS][21] -> [DMESG-WARN][22] ([i915#1982])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-glk7/igt@kms_cursor_edge_walk@pipe-b-64x64-top-edge.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-glk3/igt@kms_cursor_edge_walk@pipe-b-64x64-top-edge.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1:
    - shard-skl:          [PASS][23] -> [FAIL][24] ([i915#79]) +2 similar issues
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl3/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html

  * igt@kms_flip@flip-vs-expired-vblank@c-hdmi-a1:
    - shard-glk:          [PASS][25] -> [FAIL][26] ([i915#79])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-glk8/igt@kms_flip@flip-vs-expired-vblank@c-hdmi-a1.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-glk4/igt@kms_flip@flip-vs-expired-vblank@c-hdmi-a1.html

  * igt@kms_frontbuffer_tracking@fbc-1p-indfb-fliptrack:
    - shard-tglb:         [PASS][27] -> [DMESG-WARN][28] ([i915#1982]) +3 similar issues
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-tglb5/igt@kms_frontbuffer_tracking@fbc-1p-indfb-fliptrack.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-tglb8/igt@kms_frontbuffer_tracking@fbc-1p-indfb-fliptrack.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [PASS][29] -> [FAIL][30] ([fdo#108145] / [i915#265])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl1/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl7/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_psr2_su@page_flip:
    - shard-iclb:         [PASS][31] -> [SKIP][32] ([fdo#109642] / [fdo#111068])
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-iclb2/igt@kms_psr2_su@page_flip.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-iclb5/igt@kms_psr2_su@page_flip.html

  * igt@kms_psr@psr2_sprite_plane_move:
    - shard-iclb:         [PASS][33] -> [SKIP][34] ([fdo#109441]) +3 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-iclb2/igt@kms_psr@psr2_sprite_plane_move.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-iclb5/igt@kms_psr@psr2_sprite_plane_move.html

  
#### Possible fixes ####

  * igt@gem_exec_balancer@nop:
    - shard-iclb:         [INCOMPLETE][35] ([i915#2268]) -> [PASS][36]
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-iclb2/igt@gem_exec_balancer@nop.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-iclb8/igt@gem_exec_balancer@nop.html

  * igt@kms_cursor_crc@pipe-a-cursor-suspend:
    - shard-kbl:          [DMESG-WARN][37] ([i915#180]) -> [PASS][38] +2 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-kbl7/igt@kms_cursor_crc@pipe-a-cursor-suspend.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-kbl1/igt@kms_cursor_crc@pipe-a-cursor-suspend.html

  * igt@kms_flip@flip-vs-absolute-wf_vblank-interruptible@a-dp1:
    - shard-kbl:          [DMESG-WARN][39] ([i915#1982]) -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-kbl4/igt@kms_flip@flip-vs-absolute-wf_vblank-interruptible@a-dp1.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-kbl1/igt@kms_flip@flip-vs-absolute-wf_vblank-interruptible@a-dp1.html

  * igt@kms_frontbuffer_tracking@fbc-shrfb-scaledprimary:
    - shard-iclb:         [DMESG-WARN][41] ([i915#1982]) -> [PASS][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-iclb3/igt@kms_frontbuffer_tracking@fbc-shrfb-scaledprimary.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-iclb6/igt@kms_frontbuffer_tracking@fbc-shrfb-scaledprimary.html

  * igt@kms_plane@plane-panning-bottom-right-pipe-a-planes:
    - shard-skl:          [DMESG-WARN][43] ([i915#1982]) -> [PASS][44] +7 similar issues
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl1/igt@kms_plane@plane-panning-bottom-right-pipe-a-planes.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl5/igt@kms_plane@plane-panning-bottom-right-pipe-a-planes.html

  * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
    - shard-skl:          [FAIL][45] ([fdo#108145] / [i915#265]) -> [PASS][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl1/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl5/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html

  * igt@kms_psr@psr2_cursor_render:
    - shard-iclb:         [SKIP][47] ([fdo#109441]) -> [PASS][48] +1 similar issue
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-iclb4/igt@kms_psr@psr2_cursor_render.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-iclb2/igt@kms_psr@psr2_cursor_render.html

  
#### Warnings ####

  * igt@gem_exec_reloc@basic-concurrent16:
    - shard-snb:          [FAIL][49] ([i915#1930]) -> [TIMEOUT][50] ([i915#1958])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-snb6/igt@gem_exec_reloc@basic-concurrent16.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-snb5/igt@gem_exec_reloc@basic-concurrent16.html

  * igt@i915_pm_dc@dc5-psr:
    - shard-snb:          [SKIP][51] ([fdo#109271]) -> [INCOMPLETE][52] ([i915#82])
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-snb1/igt@i915_pm_dc@dc5-psr.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-snb5/igt@i915_pm_dc@dc5-psr.html

  * igt@i915_pm_dc@dc6-psr:
    - shard-skl:          [FAIL][53] ([i915#1899]) -> [DMESG-FAIL][54] ([i915#1982])
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl10/igt@i915_pm_dc@dc6-psr.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl3/igt@i915_pm_dc@dc6-psr.html

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min:
    - shard-skl:          [DMESG-WARN][55] ([i915#1982]) -> [FAIL][56] ([fdo#108145] / [i915#265])
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-skl3/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-skl6/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html

  * igt@kms_plane_lowres@pipe-a-tiling-yf:
    - shard-snb:          [SKIP][57] ([fdo#109271]) -> [TIMEOUT][58] ([i915#1958]) +2 similar issues
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8848/shard-snb6/igt@kms_plane_lowres@pipe-a-tiling-yf.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/shard-snb5/igt@kms_plane_lowres@pipe-a-tiling-yf.html

  
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [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
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#1528]: https://gitlab.freedesktop.org/drm/intel/issues/1528
  [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#198]: https://gitlab.freedesktop.org/drm/intel/issues/198
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2268]: https://gitlab.freedesktop.org/drm/intel/issues/2268
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


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

  * Linux: CI_DRM_8848 -> Patchwork_18315

  CI-20190529: 20190529
  CI_DRM_8848: f39035176cb854c6d620af7614a60a485ee26818 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5760: 53d2ddd2f5f7beb98a996d7f2c3976c87d4da01f @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18315: c336a5012f0f1f5b93e83d27a4c577a3c1bc1d1d @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18315/index.html

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