[Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

The conversion to ww mutexes failed to address the fence code which
already returns -EDEADLK when we run out of fences. Ww mutexes on
the other hand treat -EDEADLK as an internal errno value indicating
a need to restart the operation due to a deadlock. So now when the
fence code returns -EDEADLK the higher level code erroneously
restarts everything instead of returning the error to userspace
as is expected.

To remedy this let's switch the fence code to use a different errno
value for this. -ENOBUFS seems like a semi-reasonable unique choice.
Apart from igt the only user of this I could find is sna, and even
there all we do is dump the current fence registers from debugfs
into the X server log. So no user visible functionality is affected.
If we really cared about preserving this we could of course convert
back to -EDEADLK higher up, but doesn't seem like that's worth
the hassle here.

Not quite sure which commit specifically broke this, but I'll
just attribute it to the general gem ww mutex work.

Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom@intel.com>
Testcase: igt/gem_pread/exhaustion
Testcase: igt/gem_pwrite/basic-exhaustion
Testcase: igt/gem_fenced_exec_thrash/too-many-fences
Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
index cac7f3f44642..f8948de72036 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
@@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
 	if (intel_has_pending_fb_unpin(ggtt->vm.i915))
 		return ERR_PTR(-EAGAIN);
 
-	return ERR_PTR(-EDEADLK);
+	return ERR_PTR(-ENOBUFS);
 }
 
 int __i915_vma_pin_fence(struct i915_vma *vma)
-- 
2.31.1

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[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/gt: Fix -EDEADLK handling regression

[Patchwork]

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== Series Details ==

Series: drm/i915/gt: Fix -EDEADLK handling regression
URL   : https://patchwork.freedesktop.org/series/92082/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_10295 -> Patchwork_20497
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/index.html

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

  Here are the changes found in Patchwork_20497 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_cs_nop@nop-compute0:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][1] ([fdo#109271])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/fi-kbl-soraka/igt@amdgpu/amd_cs_nop@nop-compute0.html

  * igt@i915_module_load@reload:
    - fi-kbl-soraka:      [PASS][2] -> [DMESG-WARN][3] ([i915#1982])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/fi-kbl-soraka/igt@i915_module_load@reload.html
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/fi-kbl-soraka/igt@i915_module_load@reload.html

  * igt@runner@aborted:
    - fi-bdw-5557u:       NOTRUN -> [FAIL][4] ([i915#1602] / [i915#2029])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/fi-bdw-5557u/igt@runner@aborted.html

  
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [i915#1602]: https://gitlab.freedesktop.org/drm/intel/issues/1602
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2029]: https://gitlab.freedesktop.org/drm/intel/issues/2029


Participating hosts (39 -> 36)
------------------------------

  Missing    (3): fi-ilk-m540 fi-bsw-cyan fi-bdw-samus 


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

  * Linux: CI_DRM_10295 -> Patchwork_20497

  CI-20190529: 20190529
  CI_DRM_10295: 683b7f160eb6993ccfc19e67e3c7111f12946bea @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6124: 357d5477c93f2bdd3354afe91b89ccfd4ee4fd56 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_20497: 222d1bd6e1e767781b7db298e0ff45379f78a61d @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

222d1bd6e1e7 drm/i915/gt: Fix -EDEADLK handling regression

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/index.html

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[Intel-gfx] ✗ Fi.CI.IGT: failure for drm/i915/gt: Fix -EDEADLK handling regression

[Patchwork]

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== Series Details ==

Series: drm/i915/gt: Fix -EDEADLK handling regression
URL   : https://patchwork.freedesktop.org/series/92082/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_10295_full -> Patchwork_20497_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_20497_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_20497_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_20497_full:

### IGT changes ###

#### Possible regressions ####

  * igt@kms_big_fb@yf-tiled-max-hw-stride-32bpp-rotate-180-async-flip:
    - shard-skl:          NOTRUN -> [FAIL][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl3/igt@kms_big_fb@yf-tiled-max-hw-stride-32bpp-rotate-180-async-flip.html

  
#### Suppressed ####

  The following results come from untrusted machines, tests, or statuses.
  They do not affect the overall result.

  * igt@gem_exec_fair@basic-throttle@rcs0:
    - {shard-rkl}:        NOTRUN -> [FAIL][2] +15 similar issues
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@gem_exec_fair@basic-throttle@rcs0.html

  * igt@i915_pm_dc@dc6-psr:
    - {shard-rkl}:        [FAIL][3] ([i915#2951]) -> [SKIP][4]
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@i915_pm_dc@dc6-psr.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@i915_pm_dc@dc6-psr.html

  * igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-0-hflip-async-flip:
    - {shard-rkl}:        NOTRUN -> [SKIP][5] +61 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-0-hflip-async-flip.html

  * igt@kms_ccs@pipe-a-bad-rotation-90-y_tiled_gen12_rc_ccs:
    - {shard-rkl}:        [PASS][6] -> [FAIL][7] +5 similar issues
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_ccs@pipe-a-bad-rotation-90-y_tiled_gen12_rc_ccs.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_ccs@pipe-a-bad-rotation-90-y_tiled_gen12_rc_ccs.html

  * igt@kms_ccs@pipe-a-crc-primary-rotation-180-yf_tiled_ccs:
    - {shard-rkl}:        [FAIL][8] -> [SKIP][9] +3 similar issues
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-5/igt@kms_ccs@pipe-a-crc-primary-rotation-180-yf_tiled_ccs.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-6/igt@kms_ccs@pipe-a-crc-primary-rotation-180-yf_tiled_ccs.html

  * igt@kms_ccs@pipe-c-bad-rotation-90-yf_tiled_ccs:
    - {shard-rkl}:        [SKIP][10] -> [FAIL][11] +10 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_ccs@pipe-c-bad-rotation-90-yf_tiled_ccs.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_ccs@pipe-c-bad-rotation-90-yf_tiled_ccs.html

  * igt@kms_ccs@pipe-d-crc-primary-basic-y_tiled_gen12_rc_ccs:
    - {shard-rkl}:        [SKIP][12] ([i915#533]) -> [FAIL][13] +3 similar issues
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_ccs@pipe-d-crc-primary-basic-y_tiled_gen12_rc_ccs.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_ccs@pipe-d-crc-primary-basic-y_tiled_gen12_rc_ccs.html

  * igt@kms_content_protection@atomic:
    - {shard-rkl}:        [SKIP][14] ([fdo#109300]) -> [SKIP][15] +1 similar issue
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_content_protection@atomic.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_content_protection@atomic.html

  * igt@kms_content_protection@dp-mst-type-0:
    - {shard-rkl}:        [SKIP][16] ([i915#3116]) -> [SKIP][17]
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_content_protection@dp-mst-type-0.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_content_protection@dp-mst-type-0.html

  * igt@kms_cursor_crc@pipe-a-cursor-32x10-onscreen:
    - {shard-rkl}:        [SKIP][18] ([i915#3359]) -> [SKIP][19] +4 similar issues
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_cursor_crc@pipe-a-cursor-32x10-onscreen.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_cursor_crc@pipe-a-cursor-32x10-onscreen.html

  * igt@kms_cursor_crc@pipe-b-cursor-128x42-random:
    - {shard-rkl}:        [SKIP][20] ([fdo#112022]) -> [SKIP][21] +14 similar issues
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-2/igt@kms_cursor_crc@pipe-b-cursor-128x42-random.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_cursor_crc@pipe-b-cursor-128x42-random.html

  * igt@kms_cursor_crc@pipe-c-cursor-32x32-offscreen:
    - {shard-rkl}:        [SKIP][22] ([i915#3319]) -> [SKIP][23] +1 similar issue
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_cursor_crc@pipe-c-cursor-32x32-offscreen.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_cursor_crc@pipe-c-cursor-32x32-offscreen.html

  * igt@kms_draw_crc@draw-method-rgb565-mmap-cpu-untiled:
    - {shard-rkl}:        [SKIP][24] ([fdo#111314]) -> [SKIP][25] +1 similar issue
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-2/igt@kms_draw_crc@draw-method-rgb565-mmap-cpu-untiled.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_draw_crc@draw-method-rgb565-mmap-cpu-untiled.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-64bpp-ytile:
    - {shard-rkl}:        [INCOMPLETE][26] -> [SKIP][27]
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-5/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-64bpp-ytile.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-6/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-64bpp-ytile.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile:
    - {shard-rkl}:        NOTRUN -> [INCOMPLETE][28]
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile:
    - {shard-rkl}:        [SKIP][29] -> [INCOMPLETE][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile.html

  * igt@kms_frontbuffer_tracking@fbc-2p-indfb-fliptrack-mmap-gtt:
    - {shard-rkl}:        [SKIP][31] ([fdo#111825]) -> [SKIP][32]
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_frontbuffer_tracking@fbc-2p-indfb-fliptrack-mmap-gtt.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@kms_frontbuffer_tracking@fbc-2p-indfb-fliptrack-mmap-gtt.html

  * igt@kms_frontbuffer_tracking@fbcpsr-2p-primscrn-pri-shrfb-draw-mmap-gtt:
    - {shard-rkl}:        [SKIP][33] ([fdo#111825] / [i915#1825]) -> [SKIP][34] +7 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_frontbuffer_tracking@fbcpsr-2p-primscrn-pri-shrfb-draw-mmap-gtt.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_frontbuffer_tracking@fbcpsr-2p-primscrn-pri-shrfb-draw-mmap-gtt.html

  * igt@kms_frontbuffer_tracking@psr-2p-primscrn-shrfb-plflip-blt:
    - {shard-rkl}:        [SKIP][35] ([i915#1849]) -> [SKIP][36] +54 similar issues
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-2/igt@kms_frontbuffer_tracking@psr-2p-primscrn-shrfb-plflip-blt.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_frontbuffer_tracking@psr-2p-primscrn-shrfb-plflip-blt.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-b:
    - {shard-rkl}:        [PASS][37] -> [SKIP][38] +40 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-b.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-b.html

  * igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-2:
    - {shard-rkl}:        [SKIP][39] ([i915#658]) -> [SKIP][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-5/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-2.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-6/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-2.html

  * igt@kms_psr@psr2_primary_render:
    - {shard-rkl}:        [FAIL][41] ([i915#132]) -> [SKIP][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@kms_psr@psr2_primary_render.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_psr@psr2_primary_render.html

  * igt@kms_psr@sprite_mmap_cpu:
    - {shard-rkl}:        [SKIP][43] ([i915#1072]) -> [SKIP][44] +2 similar issues
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-2/igt@kms_psr@sprite_mmap_cpu.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-1/igt@kms_psr@sprite_mmap_cpu.html

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

  Here are the changes found in Patchwork_20497_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_create@create-massive:
    - shard-snb:          NOTRUN -> [DMESG-WARN][45] ([i915#3002])
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-snb7/igt@gem_create@create-massive.html
    - shard-apl:          NOTRUN -> [DMESG-WARN][46] ([i915#3002])
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl1/igt@gem_create@create-massive.html

  * igt@gem_ctx_isolation@preservation-s3@vecs0:
    - shard-apl:          NOTRUN -> [DMESG-WARN][47] ([i915#180])
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl1/igt@gem_ctx_isolation@preservation-s3@vecs0.html

  * igt@gem_ctx_persistence@legacy-engines-hostile-preempt:
    - shard-snb:          NOTRUN -> [SKIP][48] ([fdo#109271] / [i915#1099]) +2 similar issues
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-snb6/igt@gem_ctx_persistence@legacy-engines-hostile-preempt.html

  * igt@gem_ctx_sseu@engines:
    - shard-tglb:         NOTRUN -> [SKIP][49] ([i915#280])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@gem_ctx_sseu@engines.html

  * igt@gem_eio@unwedge-stress:
    - shard-tglb:         [PASS][50] -> [TIMEOUT][51] ([i915#2369] / [i915#3063] / [i915#3648])
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-tglb7/igt@gem_eio@unwedge-stress.html
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb5/igt@gem_eio@unwedge-stress.html
    - shard-snb:          NOTRUN -> [FAIL][52] ([i915#3354])
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-snb7/igt@gem_eio@unwedge-stress.html

  * igt@gem_exec_fair@basic-none-solo@rcs0:
    - shard-kbl:          NOTRUN -> [FAIL][53] ([i915#2842])
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl6/igt@gem_exec_fair@basic-none-solo@rcs0.html

  * igt@gem_exec_fair@basic-pace-share@rcs0:
    - shard-tglb:         [PASS][54] -> [FAIL][55] ([i915#2842]) +1 similar issue
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-tglb3/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb5/igt@gem_exec_fair@basic-pace-share@rcs0.html

  * igt@gem_exec_fair@basic-pace@vcs0:
    - shard-kbl:          [PASS][56] -> [SKIP][57] ([fdo#109271])
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-kbl1/igt@gem_exec_fair@basic-pace@vcs0.html
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl3/igt@gem_exec_fair@basic-pace@vcs0.html

  * igt@gem_exec_fair@basic-throttle@rcs0:
    - shard-iclb:         [PASS][58] -> [FAIL][59] ([i915#2849])
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-iclb8/igt@gem_exec_fair@basic-throttle@rcs0.html
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-iclb5/igt@gem_exec_fair@basic-throttle@rcs0.html

  * igt@gem_huc_copy@huc-copy:
    - shard-apl:          NOTRUN -> [SKIP][60] ([fdo#109271] / [i915#2190])
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl1/igt@gem_huc_copy@huc-copy.html

  * igt@gem_mmap_gtt@big-copy-odd:
    - shard-glk:          [PASS][61] -> [FAIL][62] ([i915#307])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-glk9/igt@gem_mmap_gtt@big-copy-odd.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk2/igt@gem_mmap_gtt@big-copy-odd.html

  * igt@gem_pwrite@basic-exhaustion:
    - shard-apl:          NOTRUN -> [WARN][63] ([i915#2658])
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl7/igt@gem_pwrite@basic-exhaustion.html

  * igt@gem_userptr_blits@coherency-sync:
    - shard-tglb:         NOTRUN -> [SKIP][64] ([fdo#110542])
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@gem_userptr_blits@coherency-sync.html

  * igt@gem_userptr_blits@dmabuf-sync:
    - shard-apl:          NOTRUN -> [SKIP][65] ([fdo#109271] / [i915#3323])
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl3/igt@gem_userptr_blits@dmabuf-sync.html

  * igt@gem_userptr_blits@vma-merge:
    - shard-glk:          NOTRUN -> [FAIL][66] ([i915#3318])
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk6/igt@gem_userptr_blits@vma-merge.html

  * igt@gen7_exec_parse@oacontrol-tracking:
    - shard-glk:          NOTRUN -> [SKIP][67] ([fdo#109271]) +40 similar issues
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk6/igt@gen7_exec_parse@oacontrol-tracking.html

  * igt@gen9_exec_parse@allowed-single:
    - shard-tglb:         NOTRUN -> [SKIP][68] ([fdo#112306])
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@gen9_exec_parse@allowed-single.html

  * igt@i915_suspend@sysfs-reader:
    - shard-skl:          [PASS][69] -> [INCOMPLETE][70] ([i915#146] / [i915#198])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-skl1/igt@i915_suspend@sysfs-reader.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl5/igt@i915_suspend@sysfs-reader.html

  * igt@kms_big_fb@linear-16bpp-rotate-90:
    - shard-apl:          NOTRUN -> [SKIP][71] ([fdo#109271]) +215 similar issues
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl3/igt@kms_big_fb@linear-16bpp-rotate-90.html

  * igt@kms_big_fb@yf-tiled-64bpp-rotate-270:
    - shard-tglb:         NOTRUN -> [SKIP][72] ([fdo#111615]) +1 similar issue
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_big_fb@yf-tiled-64bpp-rotate-270.html

  * igt@kms_ccs@pipe-c-bad-rotation-90-yf_tiled_ccs:
    - shard-tglb:         NOTRUN -> [SKIP][73] ([i915#3689]) +3 similar issues
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_ccs@pipe-c-bad-rotation-90-yf_tiled_ccs.html

  * igt@kms_chamelium@hdmi-edid-read:
    - shard-snb:          NOTRUN -> [SKIP][74] ([fdo#109271] / [fdo#111827]) +15 similar issues
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-snb7/igt@kms_chamelium@hdmi-edid-read.html

  * igt@kms_chamelium@hdmi-mode-timings:
    - shard-kbl:          NOTRUN -> [SKIP][75] ([fdo#109271] / [fdo#111827]) +20 similar issues
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl6/igt@kms_chamelium@hdmi-mode-timings.html

  * igt@kms_chamelium@vga-hpd-for-each-pipe:
    - shard-glk:          NOTRUN -> [SKIP][76] ([fdo#109271] / [fdo#111827]) +3 similar issues
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk6/igt@kms_chamelium@vga-hpd-for-each-pipe.html

  * igt@kms_color@pipe-c-ctm-0-25:
    - shard-skl:          [PASS][77] -> [DMESG-WARN][78] ([i915#1982])
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-skl2/igt@kms_color@pipe-c-ctm-0-25.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl3/igt@kms_color@pipe-c-ctm-0-25.html

  * igt@kms_color_chamelium@pipe-b-degamma:
    - shard-tglb:         NOTRUN -> [SKIP][79] ([fdo#109284] / [fdo#111827]) +1 similar issue
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_color_chamelium@pipe-b-degamma.html

  * igt@kms_color_chamelium@pipe-c-ctm-0-25:
    - shard-apl:          NOTRUN -> [SKIP][80] ([fdo#109271] / [fdo#111827]) +21 similar issues
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl1/igt@kms_color_chamelium@pipe-c-ctm-0-25.html

  * igt@kms_color_chamelium@pipe-c-degamma:
    - shard-skl:          NOTRUN -> [SKIP][81] ([fdo#109271] / [fdo#111827]) +4 similar issues
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl6/igt@kms_color_chamelium@pipe-c-degamma.html

  * igt@kms_content_protection@atomic:
    - shard-kbl:          NOTRUN -> [TIMEOUT][82] ([i915#1319]) +2 similar issues
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl1/igt@kms_content_protection@atomic.html

  * igt@kms_cursor_crc@pipe-b-cursor-32x32-rapid-movement:
    - shard-tglb:         NOTRUN -> [SKIP][83] ([i915#3319])
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_cursor_crc@pipe-b-cursor-32x32-rapid-movement.html

  * igt@kms_cursor_crc@pipe-d-cursor-suspend:
    - shard-kbl:          NOTRUN -> [SKIP][84] ([fdo#109271]) +241 similar issues
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl3/igt@kms_cursor_crc@pipe-d-cursor-suspend.html

  * igt@kms_cursor_edge_walk@pipe-d-128x128-right-edge:
    - shard-snb:          NOTRUN -> [SKIP][85] ([fdo#109271]) +252 similar issues
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-snb7/igt@kms_cursor_edge_walk@pipe-d-128x128-right-edge.html

  * igt@kms_cursor_legacy@flip-vs-cursor-legacy:
    - shard-skl:          [PASS][86] -> [FAIL][87] ([i915#2346])
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-skl1/igt@kms_cursor_legacy@flip-vs-cursor-legacy.html
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl5/igt@kms_cursor_legacy@flip-vs-cursor-legacy.html

  * igt@kms_cursor_legacy@pipe-d-torture-bo:
    - shard-kbl:          NOTRUN -> [SKIP][88] ([fdo#109271] / [i915#533]) +2 similar issues
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl6/igt@kms_cursor_legacy@pipe-d-torture-bo.html

  * igt@kms_flip@flip-vs-suspend-interruptible@a-dp1:
    - shard-kbl:          [PASS][89] -> [DMESG-WARN][90] ([i915#180]) +5 similar issues
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-kbl6/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl2/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html

  * igt@kms_flip@flip-vs-suspend@a-dp1:
    - shard-apl:          [PASS][91] -> [DMESG-WARN][92] ([i915#180])
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-apl1/igt@kms_flip@flip-vs-suspend@a-dp1.html
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl2/igt@kms_flip@flip-vs-suspend@a-dp1.html

  * igt@kms_frontbuffer_tracking@psr-2p-scndscrn-spr-indfb-draw-mmap-cpu:
    - shard-tglb:         NOTRUN -> [SKIP][93] ([fdo#111825]) +3 similar issues
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_frontbuffer_tracking@psr-2p-scndscrn-spr-indfb-draw-mmap-cpu.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-d-frame-sequence:
    - shard-apl:          NOTRUN -> [SKIP][94] ([fdo#109271] / [i915#533])
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl6/igt@kms_pipe_crc_basic@read-crc-pipe-d-frame-sequence.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c:
    - shard-skl:          [PASS][95] -> [INCOMPLETE][96] ([i915#198] / [i915#2828])
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-skl9/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl1/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-d:
    - shard-skl:          NOTRUN -> [SKIP][97] ([fdo#109271] / [i915#533])
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl6/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-d.html

  * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
    - shard-skl:          [PASS][98] -> [FAIL][99] ([fdo#108145] / [i915#265])
   [98]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-skl5/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
   [99]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl8/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html

  * igt@kms_plane_alpha_blend@pipe-c-alpha-basic:
    - shard-kbl:          NOTRUN -> [FAIL][100] ([fdo#108145] / [i915#265]) +1 similar issue
   [100]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl6/igt@kms_plane_alpha_blend@pipe-c-alpha-basic.html

  * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-max:
    - shard-apl:          NOTRUN -> [FAIL][101] ([fdo#108145] / [i915#265]) +1 similar issue
   [101]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl1/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-max.html

  * igt@kms_plane_lowres@pipe-d-tiling-y:
    - shard-tglb:         NOTRUN -> [SKIP][102] ([i915#3536])
   [102]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_plane_lowres@pipe-d-tiling-y.html

  * igt@kms_plane_lowres@pipe-d-tiling-yf:
    - shard-skl:          NOTRUN -> [SKIP][103] ([fdo#109271]) +49 similar issues
   [103]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl6/igt@kms_plane_lowres@pipe-d-tiling-yf.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-2:
    - shard-apl:          NOTRUN -> [SKIP][104] ([fdo#109271] / [i915#658]) +4 similar issues
   [104]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl7/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-2.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-3:
    - shard-kbl:          NOTRUN -> [SKIP][105] ([fdo#109271] / [i915#658]) +5 similar issues
   [105]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl7/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-3.html

  * igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-5:
    - shard-glk:          NOTRUN -> [SKIP][106] ([fdo#109271] / [i915#658])
   [106]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk6/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-5.html

  * igt@kms_psr@psr2_cursor_plane_move:
    - shard-iclb:         [PASS][107] -> [SKIP][108] ([fdo#109441]) +3 similar issues
   [107]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-iclb2/igt@kms_psr@psr2_cursor_plane_move.html
   [108]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-iclb4/igt@kms_psr@psr2_cursor_plane_move.html

  * igt@kms_psr@psr2_primary_blt:
    - shard-tglb:         NOTRUN -> [FAIL][109] ([i915#132] / [i915#3467])
   [109]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@kms_psr@psr2_primary_blt.html

  * igt@kms_writeback@writeback-check-output:
    - shard-apl:          NOTRUN -> [SKIP][110] ([fdo#109271] / [i915#2437]) +1 similar issue
   [110]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl1/igt@kms_writeback@writeback-check-output.html

  * igt@kms_writeback@writeback-invalid-parameters:
    - shard-skl:          NOTRUN -> [SKIP][111] ([fdo#109271] / [i915#2437])
   [111]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl6/igt@kms_writeback@writeback-invalid-parameters.html
    - shard-kbl:          NOTRUN -> [SKIP][112] ([fdo#109271] / [i915#2437])
   [112]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl1/igt@kms_writeback@writeback-invalid-parameters.html

  * igt@kms_writeback@writeback-pixel-formats:
    - shard-glk:          NOTRUN -> [SKIP][113] ([fdo#109271] / [i915#2437])
   [113]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk6/igt@kms_writeback@writeback-pixel-formats.html

  * igt@nouveau_crc@pipe-d-source-rg:
    - shard-tglb:         NOTRUN -> [SKIP][114] ([i915#2530])
   [114]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@nouveau_crc@pipe-d-source-rg.html

  * igt@perf_pmu@rc6-suspend:
    - shard-kbl:          NOTRUN -> [DMESG-WARN][115] ([i915#180])
   [115]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl7/igt@perf_pmu@rc6-suspend.html

  * igt@prime_nv_api@i915_nv_import_vs_close:
    - shard-tglb:         NOTRUN -> [SKIP][116] ([fdo#109291])
   [116]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb2/igt@prime_nv_api@i915_nv_import_vs_close.html

  * igt@sysfs_clients@fair-0:
    - shard-apl:          NOTRUN -> [SKIP][117] ([fdo#109271] / [i915#2994]) +2 similar issues
   [117]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-apl6/igt@sysfs_clients@fair-0.html

  * igt@sysfs_clients@fair-3:
    - shard-kbl:          NOTRUN -> [SKIP][118] ([fdo#109271] / [i915#2994]) +3 similar issues
   [118]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl1/igt@sysfs_clients@fair-3.html
    - shard-skl:          NOTRUN -> [SKIP][119] ([fdo#109271] / [i915#2994])
   [119]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-skl6/igt@sysfs_clients@fair-3.html

  
#### Possible fixes ####

  * igt@fbdev@read:
    - {shard-rkl}:        [SKIP][120] ([i915#2582]) -> [PASS][121]
   [120]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-5/igt@fbdev@read.html
   [121]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-6/igt@fbdev@read.html

  * igt@feature_discovery@psr2:
    - shard-iclb:         [SKIP][122] ([i915#658]) -> [PASS][123]
   [122]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-iclb3/igt@feature_discovery@psr2.html
   [123]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-iclb2/igt@feature_discovery@psr2.html

  * igt@gem_ctx_isolation@preservation-s3@vecs0:
    - shard-kbl:          [DMESG-WARN][124] ([i915#180]) -> [PASS][125] +10 similar issues
   [124]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-kbl2/igt@gem_ctx_isolation@preservation-s3@vecs0.html
   [125]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-kbl7/igt@gem_ctx_isolation@preservation-s3@vecs0.html

  * igt@gem_eio@unwedge-stress:
    - {shard-rkl}:        [TIMEOUT][126] -> [PASS][127]
   [126]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-5/igt@gem_eio@unwedge-stress.html
   [127]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-6/igt@gem_eio@unwedge-stress.html

  * igt@gem_exec_fair@basic-pace@bcs0:
    - shard-iclb:         [FAIL][128] ([i915#2842]) -> [PASS][129]
   [128]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-iclb5/igt@gem_exec_fair@basic-pace@bcs0.html
   [129]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-iclb7/igt@gem_exec_fair@basic-pace@bcs0.html

  * igt@gem_exec_fair@basic-pace@vcs0:
    - shard-glk:          [FAIL][130] ([i915#2842]) -> [PASS][131]
   [130]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-glk1/igt@gem_exec_fair@basic-pace@vcs0.html
   [131]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-glk1/igt@gem_exec_fair@basic-pace@vcs0.html

  * igt@gem_huc_copy@huc-copy:
    - shard-tglb:         [SKIP][132] ([i915#2190]) -> [PASS][133]
   [132]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-tglb6/igt@gem_huc_copy@huc-copy.html
   [133]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-tglb1/igt@gem_huc_copy@huc-copy.html

  * igt@gem_mmap_gtt@cpuset-medium-copy:
    - {shard-rkl}:        [FAIL][134] ([i915#2428]) -> [PASS][135]
   [134]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-1/igt@gem_mmap_gtt@cpuset-medium-copy.html
   [135]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@gem_mmap_gtt@cpuset-medium-copy.html

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - {shard-rkl}:        [SKIP][136] ([fdo#109308]) -> [PASS][137] +1 similar issue
   [136]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-5/igt@i915_pm_rpm@basic-pci-d3-state.html
   [137]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-6/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@i915_pm_rpm@system-suspend-execbuf:
    - {shard-rkl}:        [FAIL][138] ([fdo#103375]) -> [PASS][139] +1 similar issue
   [138]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-rkl-6/igt@i915_pm_rpm@system-suspend-execbuf.html
   [139]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/shard-rkl-2/igt@i915_pm_rpm@system-suspend-execbuf.html

  * igt@kms_big_fb@x-tiled-32bpp-rotate-0:
    - shard-glk:          [DMESG-WARN][140] ([i915#118] / [i915#95]) -> [PASS][141] +1 similar issue
   [140]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10295/shard-glk3/igt@kms_big_fb@x-tiled-32bpp-r

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20497/index.html

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Re: [Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Maarten Lankhorst]

Op 30-06-2021 om 18:44 schreef Ville Syrjala:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> The conversion to ww mutexes failed to address the fence code which
> already returns -EDEADLK when we run out of fences. Ww mutexes on
> the other hand treat -EDEADLK as an internal errno value indicating
> a need to restart the operation due to a deadlock. So now when the
> fence code returns -EDEADLK the higher level code erroneously
> restarts everything instead of returning the error to userspace
> as is expected.
>
> To remedy this let's switch the fence code to use a different errno
> value for this. -ENOBUFS seems like a semi-reasonable unique choice.
> Apart from igt the only user of this I could find is sna, and even
> there all we do is dump the current fence registers from debugfs
> into the X server log. So no user visible functionality is affected.
> If we really cared about preserving this we could of course convert
> back to -EDEADLK higher up, but doesn't seem like that's worth
> the hassle here.
>
> Not quite sure which commit specifically broke this, but I'll
> just attribute it to the general gem ww mutex work.
>
> Cc: stable@vger.kernel.org
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Thomas Hellström <thomas.hellstrom@intel.com>
> Testcase: igt/gem_pread/exhaustion
> Testcase: igt/gem_pwrite/basic-exhaustion
> Testcase: igt/gem_fenced_exec_thrash/too-many-fences
> Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> index cac7f3f44642..f8948de72036 100644
> --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> @@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
>  	if (intel_has_pending_fb_unpin(ggtt->vm.i915))
>  		return ERR_PTR(-EAGAIN);
>  
> -	return ERR_PTR(-EDEADLK);
> +	return ERR_PTR(-ENOBUFS);
>  }
>  
>  int __i915_vma_pin_fence(struct i915_vma *vma)

Makes sense..

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Is it a slightly more reent commit? Might probably be the part that converts execbuffer to use ww locks.

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Re: [Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Ville Syrjälä]

On Thu, Jul 01, 2021 at 09:07:27AM +0200, Maarten Lankhorst wrote:
> Op 30-06-2021 om 18:44 schreef Ville Syrjala:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > The conversion to ww mutexes failed to address the fence code which
> > already returns -EDEADLK when we run out of fences. Ww mutexes on
> > the other hand treat -EDEADLK as an internal errno value indicating
> > a need to restart the operation due to a deadlock. So now when the
> > fence code returns -EDEADLK the higher level code erroneously
> > restarts everything instead of returning the error to userspace
> > as is expected.
> >
> > To remedy this let's switch the fence code to use a different errno
> > value for this. -ENOBUFS seems like a semi-reasonable unique choice.
> > Apart from igt the only user of this I could find is sna, and even
> > there all we do is dump the current fence registers from debugfs
> > into the X server log. So no user visible functionality is affected.
> > If we really cared about preserving this we could of course convert
> > back to -EDEADLK higher up, but doesn't seem like that's worth
> > the hassle here.
> >
> > Not quite sure which commit specifically broke this, but I'll
> > just attribute it to the general gem ww mutex work.
> >
> > Cc: stable@vger.kernel.org
> > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > Cc: Thomas Hellström <thomas.hellstrom@intel.com>
> > Testcase: igt/gem_pread/exhaustion
> > Testcase: igt/gem_pwrite/basic-exhaustion
> > Testcase: igt/gem_fenced_exec_thrash/too-many-fences
> > Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > ---
> >  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > index cac7f3f44642..f8948de72036 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > @@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
> >  	if (intel_has_pending_fb_unpin(ggtt->vm.i915))
> >  		return ERR_PTR(-EAGAIN);
> >  
> > -	return ERR_PTR(-EDEADLK);
> > +	return ERR_PTR(-ENOBUFS);
> >  }
> >  
> >  int __i915_vma_pin_fence(struct i915_vma *vma)
> 
> Makes sense..
> 
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> 
> Is it a slightly more reent commit? Might probably be the part that converts execbuffer to use ww locks.

No idea about the specific commit since I've not actually bisected it.
It's just been bugging CI for quite a while now so figured I need to
fix it.

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Daniel Vetter]

On Thu, Jul 1, 2021 at 9:07 AM Maarten Lankhorst
<maarten.lankhorst@linux.intel.com> wrote:
> Op 30-06-2021 om 18:44 schreef Ville Syrjala:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > The conversion to ww mutexes failed to address the fence code which
> > already returns -EDEADLK when we run out of fences. Ww mutexes on
> > the other hand treat -EDEADLK as an internal errno value indicating
> > a need to restart the operation due to a deadlock. So now when the
> > fence code returns -EDEADLK the higher level code erroneously
> > restarts everything instead of returning the error to userspace
> > as is expected.
> >
> > To remedy this let's switch the fence code to use a different errno
> > value for this. -ENOBUFS seems like a semi-reasonable unique choice.
> > Apart from igt the only user of this I could find is sna, and even
> > there all we do is dump the current fence registers from debugfs
> > into the X server log. So no user visible functionality is affected.
> > If we really cared about preserving this we could of course convert
> > back to -EDEADLK higher up, but doesn't seem like that's worth
> > the hassle here.
> >
> > Not quite sure which commit specifically broke this, but I'll
> > just attribute it to the general gem ww mutex work.
> >
> > Cc: stable@vger.kernel.org
> > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > Cc: Thomas Hellström <thomas.hellstrom@intel.com>
> > Testcase: igt/gem_pread/exhaustion
> > Testcase: igt/gem_pwrite/basic-exhaustion
> > Testcase: igt/gem_fenced_exec_thrash/too-many-fences
> > Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > ---
> >  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > index cac7f3f44642..f8948de72036 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > @@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
> >       if (intel_has_pending_fb_unpin(ggtt->vm.i915))
> >               return ERR_PTR(-EAGAIN);
> >
> > -     return ERR_PTR(-EDEADLK);
> > +     return ERR_PTR(-ENOBUFS);
> >  }
> >
> >  int __i915_vma_pin_fence(struct i915_vma *vma)
>
> Makes sense..
>
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>
> Is it a slightly more reent commit? Might probably be the part that converts execbuffer to use ww locks.

- please cc: dri-devel on anything gem/gt related.
- this should probably be ENOSPC or something like that for at least a
seeming retention of errno consistentcy:

https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#recommended-ioctl-return-values

Cheers, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Daniel Vetter]

On Tue, Jul 13, 2021 at 9:58 PM Daniel Vetter <daniel@ffwll.ch> wrote:
>
> On Thu, Jul 1, 2021 at 9:07 AM Maarten Lankhorst
> <maarten.lankhorst@linux.intel.com> wrote:
> > Op 30-06-2021 om 18:44 schreef Ville Syrjala:
> > > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > >
> > > The conversion to ww mutexes failed to address the fence code which
> > > already returns -EDEADLK when we run out of fences. Ww mutexes on
> > > the other hand treat -EDEADLK as an internal errno value indicating
> > > a need to restart the operation due to a deadlock. So now when the
> > > fence code returns -EDEADLK the higher level code erroneously
> > > restarts everything instead of returning the error to userspace
> > > as is expected.
> > >
> > > To remedy this let's switch the fence code to use a different errno
> > > value for this. -ENOBUFS seems like a semi-reasonable unique choice.
> > > Apart from igt the only user of this I could find is sna, and even
> > > there all we do is dump the current fence registers from debugfs
> > > into the X server log. So no user visible functionality is affected.
> > > If we really cared about preserving this we could of course convert
> > > back to -EDEADLK higher up, but doesn't seem like that's worth
> > > the hassle here.
> > >
> > > Not quite sure which commit specifically broke this, but I'll
> > > just attribute it to the general gem ww mutex work.
> > >
> > > Cc: stable@vger.kernel.org
> > > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > > Cc: Thomas Hellström <thomas.hellstrom@intel.com>
> > > Testcase: igt/gem_pread/exhaustion
> > > Testcase: igt/gem_pwrite/basic-exhaustion
> > > Testcase: igt/gem_fenced_exec_thrash/too-many-fences
> > > Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
> > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > ---
> > >  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > index cac7f3f44642..f8948de72036 100644
> > > --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > @@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
> > >       if (intel_has_pending_fb_unpin(ggtt->vm.i915))
> > >               return ERR_PTR(-EAGAIN);
> > >
> > > -     return ERR_PTR(-EDEADLK);
> > > +     return ERR_PTR(-ENOBUFS);
> > >  }
> > >
> > >  int __i915_vma_pin_fence(struct i915_vma *vma)
> >
> > Makes sense..
> >
> > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> >
> > Is it a slightly more reent commit? Might probably be the part that converts execbuffer to use ww locks.
>
> - please cc: dri-devel on anything gem/gt related.
> - this should probably be ENOSPC or something like that for at least a
> seeming retention of errno consistentcy:
>
> https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#recommended-ioctl-return-values

Other option would be to map that back to EDEADLK in the execbuf ioctl
somewhere, so we retain a distinct errno code.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Rodrigo Vivi]

On Tue, Jul 13, 2021 at 09:59:18PM +0200, Daniel Vetter wrote:
> On Tue, Jul 13, 2021 at 9:58 PM Daniel Vetter <daniel@ffwll.ch> wrote:
> >
> > On Thu, Jul 1, 2021 at 9:07 AM Maarten Lankhorst
> > <maarten.lankhorst@linux.intel.com> wrote:
> > > Op 30-06-2021 om 18:44 schreef Ville Syrjala:
> > > > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > >
> > > > The conversion to ww mutexes failed to address the fence code which
> > > > already returns -EDEADLK when we run out of fences. Ww mutexes on
> > > > the other hand treat -EDEADLK as an internal errno value indicating
> > > > a need to restart the operation due to a deadlock. So now when the
> > > > fence code returns -EDEADLK the higher level code erroneously
> > > > restarts everything instead of returning the error to userspace
> > > > as is expected.
> > > >
> > > > To remedy this let's switch the fence code to use a different errno
> > > > value for this. -ENOBUFS seems like a semi-reasonable unique choice.
> > > > Apart from igt the only user of this I could find is sna, and even
> > > > there all we do is dump the current fence registers from debugfs
> > > > into the X server log. So no user visible functionality is affected.
> > > > If we really cared about preserving this we could of course convert
> > > > back to -EDEADLK higher up, but doesn't seem like that's worth
> > > > the hassle here.
> > > >
> > > > Not quite sure which commit specifically broke this, but I'll
> > > > just attribute it to the general gem ww mutex work.
> > > >
> > > > Cc: stable@vger.kernel.org
> > > > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > > > Cc: Thomas Hellström <thomas.hellstrom@intel.com>
> > > > Testcase: igt/gem_pread/exhaustion
> > > > Testcase: igt/gem_pwrite/basic-exhaustion
> > > > Testcase: igt/gem_fenced_exec_thrash/too-many-fences
> > > > Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
> > > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > > ---
> > > >  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > > index cac7f3f44642..f8948de72036 100644
> > > > --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > > +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > > @@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
> > > >       if (intel_has_pending_fb_unpin(ggtt->vm.i915))
> > > >               return ERR_PTR(-EAGAIN);
> > > >
> > > > -     return ERR_PTR(-EDEADLK);
> > > > +     return ERR_PTR(-ENOBUFS);
> > > >  }
> > > >
> > > >  int __i915_vma_pin_fence(struct i915_vma *vma)
> > >
> > > Makes sense..
> > >
> > > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > >
> > > Is it a slightly more reent commit? Might probably be the part that converts execbuffer to use ww locks.
> >
> > - please cc: dri-devel on anything gem/gt related.
> > - this should probably be ENOSPC or something like that for at least a
> > seeming retention of errno consistentcy:
> >
> > https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#recommended-ioctl-return-values
> 
> Other option would be to map that back to EDEADLK in the execbuf ioctl
> somewhere, so we retain a distinct errno code.

I'm about to push this patch to drm-intel-fixes... I'm assuming if there's any fix it will
be a follow-up patch and not a revert or force push, right?!

> -Daniel
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> _______________________________________________
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Re: [Intel-gfx] [PATCH] drm/i915/gt: Fix -EDEADLK handling regression

[Ville Syrjälä]

On Tue, Jul 13, 2021 at 09:59:18PM +0200, Daniel Vetter wrote:
> On Tue, Jul 13, 2021 at 9:58 PM Daniel Vetter <daniel@ffwll.ch> wrote:
> >
> > On Thu, Jul 1, 2021 at 9:07 AM Maarten Lankhorst
> > <maarten.lankhorst@linux.intel.com> wrote:
> > > Op 30-06-2021 om 18:44 schreef Ville Syrjala:
> > > > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > >
> > > > The conversion to ww mutexes failed to address the fence code which
> > > > already returns -EDEADLK when we run out of fences. Ww mutexes on
> > > > the other hand treat -EDEADLK as an internal errno value indicating
> > > > a need to restart the operation due to a deadlock. So now when the
> > > > fence code returns -EDEADLK the higher level code erroneously
> > > > restarts everything instead of returning the error to userspace
> > > > as is expected.
> > > >
> > > > To remedy this let's switch the fence code to use a different errno
> > > > value for this. -ENOBUFS seems like a semi-reasonable unique choice.
> > > > Apart from igt the only user of this I could find is sna, and even
> > > > there all we do is dump the current fence registers from debugfs
> > > > into the X server log. So no user visible functionality is affected.
> > > > If we really cared about preserving this we could of course convert
> > > > back to -EDEADLK higher up, but doesn't seem like that's worth
> > > > the hassle here.
> > > >
> > > > Not quite sure which commit specifically broke this, but I'll
> > > > just attribute it to the general gem ww mutex work.
> > > >
> > > > Cc: stable@vger.kernel.org
> > > > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > > > Cc: Thomas Hellström <thomas.hellstrom@intel.com>
> > > > Testcase: igt/gem_pread/exhaustion
> > > > Testcase: igt/gem_pwrite/basic-exhaustion
> > > > Testcase: igt/gem_fenced_exec_thrash/too-many-fences
> > > > Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
> > > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > > ---
> > > >  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > > index cac7f3f44642..f8948de72036 100644
> > > > --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > > +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> > > > @@ -348,7 +348,7 @@ static struct i915_fence_reg *fence_find(struct i915_ggtt *ggtt)
> > > >       if (intel_has_pending_fb_unpin(ggtt->vm.i915))
> > > >               return ERR_PTR(-EAGAIN);
> > > >
> > > > -     return ERR_PTR(-EDEADLK);
> > > > +     return ERR_PTR(-ENOBUFS);
> > > >  }
> > > >
> > > >  int __i915_vma_pin_fence(struct i915_vma *vma)
> > >
> > > Makes sense..
> > >
> > > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > >
> > > Is it a slightly more reent commit? Might probably be the part that converts execbuffer to use ww locks.
> >
> > - please cc: dri-devel on anything gem/gt related.

Thought I did. Apparently got lost somewhere.

> > - this should probably be ENOSPC or something like that for at least a
> > seeming retention of errno consistentcy:

ENOSPC is already used for other things.

> >
> > https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#recommended-ioctl-return-values
> 
> Other option would be to map that back to EDEADLK in the execbuf ioctl
> somewhere, so we retain a distinct errno code.

Already mentioned in the commit msg.

-- 
Ville Syrjälä
Intel
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