[PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Matthew Auld]

The first tracepoint for a request is trace_dma_fence_init which is
called in the ctor before we have properly setup the request->engine. So
if it's a non-recycled request the rq->engine might be NULL, or some
garbage value, which leads to a crash.

Since we are not permitted to use kmem_cache_zalloc() here with
SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME. We
can then revisit this later if we decide to get rid of
SLAB_TYPESAFE_BY_RCU.

Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Michael Mason <michael.w.mason@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 1014c71cf7f5..55fa94bde22e 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -61,7 +61,7 @@ static struct i915_global_request {
 
 static const char *i915_fence_get_driver_name(struct dma_fence *fence)
 {
-	return dev_name(to_request(fence)->engine->i915->drm.dev);
+	return DRIVER_NAME;
 }
 
 static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
-- 
2.26.3

[Intel-gfx] [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Matthew Auld]

The first tracepoint for a request is trace_dma_fence_init which is
called in the ctor before we have properly setup the request->engine. So
if it's a non-recycled request the rq->engine might be NULL, or some
garbage value, which leads to a crash.

Since we are not permitted to use kmem_cache_zalloc() here with
SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME. We
can then revisit this later if we decide to get rid of
SLAB_TYPESAFE_BY_RCU.

Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Michael Mason <michael.w.mason@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 1014c71cf7f5..55fa94bde22e 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -61,7 +61,7 @@ static struct i915_global_request {
 
 static const char *i915_fence_get_driver_name(struct dma_fence *fence)
 {
-	return dev_name(to_request(fence)->engine->i915->drm.dev);
+	return DRIVER_NAME;
 }
 
 static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
-- 
2.26.3

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Re: [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Daniel Vetter]

On Wed, Jun 16, 2021 at 01:28:33PM +0100, Matthew Auld wrote:
> The first tracepoint for a request is trace_dma_fence_init which is
> called in the ctor before we have properly setup the request->engine. So
> if it's a non-recycled request the rq->engine might be NULL, or some
> garbage value, which leads to a crash.

I'd hammer it more in here that we cannot move the dma_fence_init out of
the slab constructor (aka ctor), because that breaks the magic request
recycling through SLAB_TYPESAFE_BY_RCU. You do explain it all, but in a
rather dense fashion. More verbosity here would be good.

> Since we are not permitted to use kmem_cache_zalloc() here with

This part I'm not really clear on ... what would zalloc break? Ideally
references to the commits/bugs/functions in the code that would blow up
would be good here.

> SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME. We
> can then revisit this later if we decide to get rid of
> SLAB_TYPESAFE_BY_RCU.
> 
> Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Michael Mason <michael.w.mason@intel.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>

As a stop-gab the code change looks reasonable, but I think the commit
message needs work and much more of the history/background we're hitting
here.

Thanks, Daniel

> ---
>  drivers/gpu/drm/i915/i915_request.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
> index 1014c71cf7f5..55fa94bde22e 100644
> --- a/drivers/gpu/drm/i915/i915_request.c
> +++ b/drivers/gpu/drm/i915/i915_request.c
> @@ -61,7 +61,7 @@ static struct i915_global_request {
>  
>  static const char *i915_fence_get_driver_name(struct dma_fence *fence)
>  {
> -	return dev_name(to_request(fence)->engine->i915->drm.dev);
> +	return DRIVER_NAME;
>  }
>  
>  static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
> -- 
> 2.26.3
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [Intel-gfx] [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Daniel Vetter]

On Wed, Jun 16, 2021 at 01:28:33PM +0100, Matthew Auld wrote:
> The first tracepoint for a request is trace_dma_fence_init which is
> called in the ctor before we have properly setup the request->engine. So
> if it's a non-recycled request the rq->engine might be NULL, or some
> garbage value, which leads to a crash.

I'd hammer it more in here that we cannot move the dma_fence_init out of
the slab constructor (aka ctor), because that breaks the magic request
recycling through SLAB_TYPESAFE_BY_RCU. You do explain it all, but in a
rather dense fashion. More verbosity here would be good.

> Since we are not permitted to use kmem_cache_zalloc() here with

This part I'm not really clear on ... what would zalloc break? Ideally
references to the commits/bugs/functions in the code that would blow up
would be good here.

> SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME. We
> can then revisit this later if we decide to get rid of
> SLAB_TYPESAFE_BY_RCU.
> 
> Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Michael Mason <michael.w.mason@intel.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>

As a stop-gab the code change looks reasonable, but I think the commit
message needs work and much more of the history/background we're hitting
here.

Thanks, Daniel

> ---
>  drivers/gpu/drm/i915/i915_request.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
> index 1014c71cf7f5..55fa94bde22e 100644
> --- a/drivers/gpu/drm/i915/i915_request.c
> +++ b/drivers/gpu/drm/i915/i915_request.c
> @@ -61,7 +61,7 @@ static struct i915_global_request {
>  
>  static const char *i915_fence_get_driver_name(struct dma_fence *fence)
>  {
> -	return dev_name(to_request(fence)->engine->i915->drm.dev);
> +	return DRIVER_NAME;
>  }
>  
>  static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
> -- 
> 2.26.3
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: return DRIVER_NAME for the fence driver name

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 2283 bytes --]

== Series Details ==

Series: drm/i915: return DRIVER_NAME for the fence driver name
URL   : https://patchwork.freedesktop.org/series/91573/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_10230 -> Patchwork_20388
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/index.html

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

  Here are the changes found in Patchwork_20388 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_basic@cs-gfx:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][1] ([fdo#109271]) +5 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/fi-kbl-soraka/igt@amdgpu/amd_basic@cs-gfx.html

  * igt@runner@aborted:
    - fi-bdw-5557u:       NOTRUN -> [FAIL][2] ([i915#1602] / [i915#2029])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/fi-bdw-5557u/igt@runner@aborted.html

  
#### Possible fixes ####

  * igt@dmabuf@all@dma_fence:
    - fi-pnv-d510:        [FAIL][3] -> [PASS][4]
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/fi-pnv-d510/igt@dmabuf@all@dma_fence.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/fi-pnv-d510/igt@dmabuf@all@dma_fence.html

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


Participating hosts (43 -> 38)
------------------------------

  Missing    (5): fi-ilk-m540 fi-hsw-4200u fi-bsw-cyan fi-ctg-p8600 fi-bdw-samus 


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

  * Linux: CI_DRM_10230 -> Patchwork_20388

  CI-20190529: 20190529
  CI_DRM_10230: 03937139a4149d1cb76e7677e5da15bc414d56dc @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6109: 61ba2ed489540e6a8a649be38abb075b3ab4d28a @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_20388: 1b20c87251a72547fda1b1a3597b196a86d0813d @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

1b20c87251a7 drm/i915: return DRIVER_NAME for the fence driver name

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/index.html

[-- Attachment #1.2: Type: text/html, Size: 2936 bytes --]

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

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.IGT: success for drm/i915: return DRIVER_NAME for the fence driver name

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 29783 bytes --]

== Series Details ==

Series: drm/i915: return DRIVER_NAME for the fence driver name
URL   : https://patchwork.freedesktop.org/series/91573/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_10230_full -> Patchwork_20388_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

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

  Here are the changes found in Patchwork_20388_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@api_intel_bb@blit-noreloc-purge-cache-random:
    - shard-snb:          NOTRUN -> [SKIP][1] ([fdo#109271]) +197 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-snb5/igt@api_intel_bb@blit-noreloc-purge-cache-random.html

  * igt@drm_mm@all@insert_range:
    - shard-skl:          NOTRUN -> [INCOMPLETE][2] ([i915#2485])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl7/igt@drm_mm@all@insert_range.html

  * igt@gem_ctx_isolation@preservation-s3@vecs0:
    - shard-skl:          [PASS][3] -> [INCOMPLETE][4] ([i915#198])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl6/igt@gem_ctx_isolation@preservation-s3@vecs0.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl6/igt@gem_ctx_isolation@preservation-s3@vecs0.html

  * igt@gem_ctx_param@set-priority-not-supported:
    - shard-tglb:         NOTRUN -> [SKIP][5] ([fdo#109314])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@gem_ctx_param@set-priority-not-supported.html

  * igt@gem_ctx_persistence@legacy-engines-cleanup:
    - shard-snb:          NOTRUN -> [SKIP][6] ([fdo#109271] / [i915#1099]) +1 similar issue
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-snb2/igt@gem_ctx_persistence@legacy-engines-cleanup.html

  * igt@gem_eio@in-flight-contexts-1us:
    - shard-tglb:         [PASS][7] -> [TIMEOUT][8] ([i915#3063])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-tglb1/igt@gem_eio@in-flight-contexts-1us.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@gem_eio@in-flight-contexts-1us.html

  * igt@gem_eio@unwedge-stress:
    - shard-tglb:         [PASS][9] -> [TIMEOUT][10] ([i915#2369] / [i915#3063])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-tglb1/igt@gem_eio@unwedge-stress.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb2/igt@gem_eio@unwedge-stress.html

  * igt@gem_exec_fair@basic-none-rrul@rcs0:
    - shard-glk:          [PASS][11] -> [FAIL][12] ([i915#2842])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-glk5/igt@gem_exec_fair@basic-none-rrul@rcs0.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-glk4/igt@gem_exec_fair@basic-none-rrul@rcs0.html

  * igt@gem_exec_reloc@basic-wide-active@bcs0:
    - shard-apl:          NOTRUN -> [FAIL][13] ([i915#2389]) +3 similar issues
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl7/igt@gem_exec_reloc@basic-wide-active@bcs0.html

  * igt@gem_exec_reloc@basic-wide-active@rcs0:
    - shard-snb:          NOTRUN -> [FAIL][14] ([i915#2389]) +2 similar issues
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-snb5/igt@gem_exec_reloc@basic-wide-active@rcs0.html

  * igt@gem_exec_reloc@basic-wide-active@vcs1:
    - shard-iclb:         NOTRUN -> [FAIL][15] ([i915#2389])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb1/igt@gem_exec_reloc@basic-wide-active@vcs1.html

  * igt@gem_mmap_gtt@big-copy-xy:
    - shard-glk:          [PASS][16] -> [FAIL][17] ([i915#307])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-glk3/igt@gem_mmap_gtt@big-copy-xy.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-glk6/igt@gem_mmap_gtt@big-copy-xy.html

  * igt@gem_pwrite@basic-exhaustion:
    - shard-apl:          NOTRUN -> [WARN][18] ([i915#2658])
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl7/igt@gem_pwrite@basic-exhaustion.html
    - shard-tglb:         NOTRUN -> [WARN][19] ([i915#2658])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@gem_pwrite@basic-exhaustion.html

  * igt@gen9_exec_parse@unaligned-jump:
    - shard-tglb:         NOTRUN -> [SKIP][20] ([fdo#112306])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@gen9_exec_parse@unaligned-jump.html

  * igt@kms_big_fb@x-tiled-32bpp-rotate-180:
    - shard-glk:          [PASS][21] -> [DMESG-WARN][22] ([i915#118] / [i915#95])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-glk7/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-glk2/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html

  * igt@kms_big_fb@x-tiled-64bpp-rotate-90:
    - shard-tglb:         NOTRUN -> [SKIP][23] ([fdo#111614])
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_big_fb@x-tiled-64bpp-rotate-90.html

  * igt@kms_big_fb@yf-tiled-addfb-size-overflow:
    - shard-tglb:         NOTRUN -> [SKIP][24] ([fdo#111615]) +1 similar issue
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_big_fb@yf-tiled-addfb-size-overflow.html

  * igt@kms_chamelium@vga-hpd:
    - shard-apl:          NOTRUN -> [SKIP][25] ([fdo#109271] / [fdo#111827]) +16 similar issues
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl7/igt@kms_chamelium@vga-hpd.html

  * igt@kms_color_chamelium@pipe-b-ctm-0-5:
    - shard-tglb:         NOTRUN -> [SKIP][26] ([fdo#109284] / [fdo#111827]) +3 similar issues
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_color_chamelium@pipe-b-ctm-0-5.html

  * igt@kms_color_chamelium@pipe-c-ctm-green-to-red:
    - shard-snb:          NOTRUN -> [SKIP][27] ([fdo#109271] / [fdo#111827]) +10 similar issues
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-snb5/igt@kms_color_chamelium@pipe-c-ctm-green-to-red.html

  * igt@kms_color_chamelium@pipe-c-ctm-negative:
    - shard-kbl:          NOTRUN -> [SKIP][28] ([fdo#109271] / [fdo#111827]) +1 similar issue
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl6/igt@kms_color_chamelium@pipe-c-ctm-negative.html

  * igt@kms_content_protection@legacy:
    - shard-apl:          NOTRUN -> [TIMEOUT][29] ([i915#1319])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@kms_content_protection@legacy.html

  * igt@kms_cursor_crc@pipe-a-cursor-32x10-offscreen:
    - shard-tglb:         NOTRUN -> [SKIP][30] ([i915#3359])
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_cursor_crc@pipe-a-cursor-32x10-offscreen.html

  * igt@kms_cursor_crc@pipe-b-cursor-32x32-rapid-movement:
    - shard-tglb:         NOTRUN -> [SKIP][31] ([i915#3319])
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_cursor_crc@pipe-b-cursor-32x32-rapid-movement.html

  * igt@kms_cursor_crc@pipe-d-cursor-512x170-onscreen:
    - shard-tglb:         NOTRUN -> [SKIP][32] ([fdo#109279] / [i915#3359]) +2 similar issues
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_cursor_crc@pipe-d-cursor-512x170-onscreen.html

  * igt@kms_flip@flip-vs-suspend-interruptible@c-edp1:
    - shard-skl:          [PASS][33] -> [INCOMPLETE][34] ([i915#146] / [i915#198])
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl1/igt@kms_flip@flip-vs-suspend-interruptible@c-edp1.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl6/igt@kms_flip@flip-vs-suspend-interruptible@c-edp1.html

  * igt@kms_flip@plain-flip-ts-check-interruptible@a-edp1:
    - shard-skl:          [PASS][35] -> [FAIL][36] ([i915#2122])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl3/igt@kms_flip@plain-flip-ts-check-interruptible@a-edp1.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl10/igt@kms_flip@plain-flip-ts-check-interruptible@a-edp1.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytileccs:
    - shard-tglb:         NOTRUN -> [SKIP][37] ([i915#2587])
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytileccs.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile:
    - shard-apl:          NOTRUN -> [SKIP][38] ([fdo#109271] / [i915#2642])
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile.html

  * igt@kms_frontbuffer_tracking@fbc-2p-scndscrn-pri-indfb-draw-mmap-wc:
    - shard-skl:          NOTRUN -> [SKIP][39] ([fdo#109271]) +3 similar issues
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl1/igt@kms_frontbuffer_tracking@fbc-2p-scndscrn-pri-indfb-draw-mmap-wc.html

  * igt@kms_frontbuffer_tracking@fbc-suspend:
    - shard-kbl:          [PASS][40] -> [DMESG-WARN][41] ([i915#180]) +4 similar issues
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-suspend.html

  * igt@kms_frontbuffer_tracking@fbcpsr-2p-primscrn-pri-indfb-draw-blt:
    - shard-tglb:         NOTRUN -> [SKIP][42] ([fdo#111825]) +14 similar issues
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_frontbuffer_tracking@fbcpsr-2p-primscrn-pri-indfb-draw-blt.html

  * igt@kms_frontbuffer_tracking@fbcpsr-2p-scndscrn-pri-indfb-draw-render:
    - shard-kbl:          NOTRUN -> [SKIP][43] ([fdo#109271]) +18 similar issues
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl6/igt@kms_frontbuffer_tracking@fbcpsr-2p-scndscrn-pri-indfb-draw-render.html

  * igt@kms_hdr@bpc-switch-dpms:
    - shard-skl:          [PASS][44] -> [FAIL][45] ([i915#1188])
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl4/igt@kms_hdr@bpc-switch-dpms.html
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl1/igt@kms_hdr@bpc-switch-dpms.html

  * igt@kms_pipe_crc_basic@disable-crc-after-crtc-pipe-d:
    - shard-apl:          NOTRUN -> [SKIP][46] ([fdo#109271] / [i915#533]) +1 similar issue
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl7/igt@kms_pipe_crc_basic@disable-crc-after-crtc-pipe-d.html

  * igt@kms_plane_alpha_blend@pipe-a-alpha-basic:
    - shard-apl:          NOTRUN -> [FAIL][47] ([fdo#108145] / [i915#265]) +2 similar issues
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html

  * igt@kms_plane_alpha_blend@pipe-b-alpha-opaque-fb:
    - shard-kbl:          NOTRUN -> [FAIL][48] ([fdo#108145] / [i915#265])
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl6/igt@kms_plane_alpha_blend@pipe-b-alpha-opaque-fb.html

  * igt@kms_plane_alpha_blend@pipe-b-alpha-transparent-fb:
    - shard-apl:          NOTRUN -> [FAIL][49] ([i915#265])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl7/igt@kms_plane_alpha_blend@pipe-b-alpha-transparent-fb.html

  * igt@kms_plane_lowres@pipe-d-tiling-x:
    - shard-tglb:         NOTRUN -> [SKIP][50] ([i915#3536])
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_plane_lowres@pipe-d-tiling-x.html

  * igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-5:
    - shard-apl:          NOTRUN -> [SKIP][51] ([fdo#109271] / [i915#658]) +5 similar issues
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-5.html

  * igt@kms_psr2_su@frontbuffer:
    - shard-tglb:         NOTRUN -> [SKIP][52] ([i915#1911])
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@kms_psr2_su@frontbuffer.html

  * igt@kms_psr@psr2_cursor_mmap_cpu:
    - shard-iclb:         [PASS][53] -> [SKIP][54] ([fdo#109441]) +1 similar issue
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb2/igt@kms_psr@psr2_cursor_mmap_cpu.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb1/igt@kms_psr@psr2_cursor_mmap_cpu.html

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-kbl:          [PASS][55] -> [DMESG-WARN][56] ([i915#180] / [i915#295])
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl3/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl7/igt@kms_vblank@pipe-a-ts-continuation-suspend.html

  * igt@kms_writeback@writeback-pixel-formats:
    - shard-apl:          NOTRUN -> [SKIP][57] ([fdo#109271] / [i915#2437])
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@kms_writeback@writeback-pixel-formats.html

  * igt@nouveau_crc@pipe-b-source-outp-complete:
    - shard-tglb:         NOTRUN -> [SKIP][58] ([i915#2530])
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@nouveau_crc@pipe-b-source-outp-complete.html

  * igt@prime_nv_api@i915_nv_reimport_twice_check_flink_name:
    - shard-apl:          NOTRUN -> [SKIP][59] ([fdo#109271]) +168 similar issues
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@prime_nv_api@i915_nv_reimport_twice_check_flink_name.html

  * igt@prime_nv_test@nv_i915_sharing:
    - shard-tglb:         NOTRUN -> [SKIP][60] ([fdo#109291])
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@prime_nv_test@nv_i915_sharing.html

  * igt@sysfs_clients@busy:
    - shard-tglb:         NOTRUN -> [SKIP][61] ([i915#2994])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@sysfs_clients@busy.html

  * igt@sysfs_clients@fair-1:
    - shard-apl:          NOTRUN -> [SKIP][62] ([fdo#109271] / [i915#2994]) +2 similar issues
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl7/igt@sysfs_clients@fair-1.html

  
#### Possible fixes ####

  * igt@gem_exec_endless@dispatch@bcs0:
    - shard-iclb:         [INCOMPLETE][63] -> [PASS][64]
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb2/igt@gem_exec_endless@dispatch@bcs0.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb8/igt@gem_exec_endless@dispatch@bcs0.html

  * igt@gem_exec_fair@basic-none-share@rcs0:
    - shard-iclb:         [FAIL][65] ([i915#2842]) -> [PASS][66]
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb8/igt@gem_exec_fair@basic-none-share@rcs0.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb2/igt@gem_exec_fair@basic-none-share@rcs0.html

  * igt@gem_exec_fair@basic-pace-share@rcs0:
    - shard-tglb:         [FAIL][67] ([i915#2842]) -> [PASS][68]
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-tglb7/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb2/igt@gem_exec_fair@basic-pace-share@rcs0.html

  * igt@gem_exec_fair@basic-pace-solo@rcs0:
    - shard-kbl:          [FAIL][69] ([i915#2842]) -> [PASS][70] +1 similar issue
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl3/igt@gem_exec_fair@basic-pace-solo@rcs0.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl7/igt@gem_exec_fair@basic-pace-solo@rcs0.html

  * igt@gem_exec_fair@basic-pace@vcs0:
    - shard-kbl:          [SKIP][71] ([fdo#109271]) -> [PASS][72]
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl6/igt@gem_exec_fair@basic-pace@vcs0.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl2/igt@gem_exec_fair@basic-pace@vcs0.html

  * igt@gem_exec_fair@basic-throttle@rcs0:
    - shard-glk:          [FAIL][73] ([i915#2842]) -> [PASS][74]
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-glk8/igt@gem_exec_fair@basic-throttle@rcs0.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-glk7/igt@gem_exec_fair@basic-throttle@rcs0.html

  * igt@gem_mmap_gtt@cpuset-big-copy-odd:
    - shard-iclb:         [FAIL][75] ([i915#307]) -> [PASS][76]
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb3/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb8/igt@gem_mmap_gtt@cpuset-big-copy-odd.html

  * igt@gem_vm_create@destroy-race:
    - shard-tglb:         [FAIL][77] ([i915#2822]) -> [PASS][78]
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-tglb5/igt@gem_vm_create@destroy-race.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@gem_vm_create@destroy-race.html

  * igt@kms_async_flips@alternate-sync-async-flip:
    - shard-skl:          [FAIL][79] ([i915#2521]) -> [PASS][80]
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl6/igt@kms_async_flips@alternate-sync-async-flip.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl7/igt@kms_async_flips@alternate-sync-async-flip.html

  * igt@kms_cursor_edge_walk@pipe-b-256x256-top-edge:
    - shard-skl:          [DMESG-WARN][81] ([i915#1982]) -> [PASS][82] +1 similar issue
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl7/igt@kms_cursor_edge_walk@pipe-b-256x256-top-edge.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl8/igt@kms_cursor_edge_walk@pipe-b-256x256-top-edge.html

  * igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled:
    - shard-skl:          [FAIL][83] -> [PASS][84]
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl5/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl5/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html

  * igt@kms_flip@flip-vs-suspend-interruptible@c-dp1:
    - shard-apl:          [DMESG-WARN][85] ([i915#180]) -> [PASS][86] +2 similar issues
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl8/igt@kms_flip@flip-vs-suspend-interruptible@c-dp1.html
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl6/igt@kms_flip@flip-vs-suspend-interruptible@c-dp1.html

  * igt@kms_flip@flip-vs-suspend@b-dp1:
    - shard-kbl:          [DMESG-WARN][87] ([i915#180]) -> [PASS][88]
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl3/igt@kms_flip@flip-vs-suspend@b-dp1.html
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl6/igt@kms_flip@flip-vs-suspend@b-dp1.html

  * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-render:
    - shard-iclb:         [FAIL][89] ([i915#49]) -> [PASS][90]
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb3/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-render.html
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb4/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-render.html

  * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
    - shard-skl:          [FAIL][91] ([fdo#108145] / [i915#265]) -> [PASS][92] +1 similar issue
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl8/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl5/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html

  * igt@kms_psr@psr2_basic:
    - shard-iclb:         [SKIP][93] ([fdo#109441]) -> [PASS][94] +1 similar issue
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb1/igt@kms_psr@psr2_basic.html
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb2/igt@kms_psr@psr2_basic.html

  * igt@perf@oa-exponents:
    - shard-tglb:         [INCOMPLETE][95] -> [PASS][96]
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-tglb6/igt@perf@oa-exponents.html
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-tglb5/igt@perf@oa-exponents.html

  * igt@perf@polling:
    - shard-skl:          [FAIL][97] ([i915#1542]) -> [PASS][98]
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-skl1/igt@perf@polling.html
   [98]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-skl6/igt@perf@polling.html

  
#### Warnings ####

  * igt@gem_exec_fair@basic-throttle@rcs0:
    - shard-iclb:         [FAIL][99] ([i915#2849]) -> [FAIL][100] ([i915#2842])
   [99]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb1/igt@gem_exec_fair@basic-throttle@rcs0.html
   [100]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb6/igt@gem_exec_fair@basic-throttle@rcs0.html

  * igt@i915_pm_rc6_residency@rc6-fence:
    - shard-iclb:         [WARN][101] ([i915#2684]) -> [WARN][102] ([i915#1804] / [i915#2684])
   [101]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb5/igt@i915_pm_rc6_residency@rc6-fence.html
   [102]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb7/igt@i915_pm_rc6_residency@rc6-fence.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-3:
    - shard-iclb:         [SKIP][103] ([i915#2920]) -> [SKIP][104] ([i915#658])
   [103]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb2/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-3.html
   [104]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb8/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-3.html

  * igt@kms_psr2_sf@plane-move-sf-dmg-area-3:
    - shard-iclb:         [SKIP][105] ([i915#658]) -> [SKIP][106] ([i915#2920])
   [105]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-iclb6/igt@kms_psr2_sf@plane-move-sf-dmg-area-3.html
   [106]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-iclb2/igt@kms_psr2_sf@plane-move-sf-dmg-area-3.html

  * igt@runner@aborted:
    - shard-kbl:          ([FAIL][107], [FAIL][108], [FAIL][109], [FAIL][110], [FAIL][111], [FAIL][112]) ([i915#1436] / [i915#180] / [i915#3002] / [i915#3363]) -> ([FAIL][113], [FAIL][114], [FAIL][115], [FAIL][116], [FAIL][117], [FAIL][118], [FAIL][119], [FAIL][120], [FAIL][121]) ([fdo#109271] / [i915#1436] / [i915#180] / [i915#1814] / [i915#3002] / [i915#3363] / [i915#602])
   [107]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl1/igt@runner@aborted.html
   [108]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl1/igt@runner@aborted.html
   [109]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl1/igt@runner@aborted.html
   [110]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl1/igt@runner@aborted.html
   [111]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl4/igt@runner@aborted.html
   [112]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-kbl3/igt@runner@aborted.html
   [113]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl4/igt@runner@aborted.html
   [114]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl7/igt@runner@aborted.html
   [115]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl7/igt@runner@aborted.html
   [116]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl2/igt@runner@aborted.html
   [117]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl3/igt@runner@aborted.html
   [118]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl2/igt@runner@aborted.html
   [119]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl1/igt@runner@aborted.html
   [120]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl2/igt@runner@aborted.html
   [121]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-kbl2/igt@runner@aborted.html
    - shard-apl:          ([FAIL][122], [FAIL][123], [FAIL][124], [FAIL][125], [FAIL][126], [FAIL][127]) ([fdo#109271] / [i915#180] / [i915#3002] / [i915#3363]) -> ([FAIL][128], [FAIL][129], [FAIL][130]) ([i915#180] / [i915#3002] / [i915#3363])
   [122]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl2/igt@runner@aborted.html
   [123]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl8/igt@runner@aborted.html
   [124]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl3/igt@runner@aborted.html
   [125]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl2/igt@runner@aborted.html
   [126]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl6/igt@runner@aborted.html
   [127]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10230/shard-apl2/igt@runner@aborted.html
   [128]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl1/igt@runner@aborted.html
   [129]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl1/igt@runner@aborted.html
   [130]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20388/shard-apl3/igt@runner@aborted.html

  
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109279]: https://bugs.freedesktop.org/show_bug.cgi?id=109279
  [fdo#109284]: https://bugs.freedesktop.org/show_bug.cgi?id=109284
  [fdo#109291]: https://bugs.freedesktop.org/show_bug.cgi?id=109291
  [fdo#109314]: https://bugs.freedesktop.org/show_bug.cgi?id=109314
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#111614]: https://bugs.freedesktop.org/show_bug.cgi?id=111614
  [fdo#111615]: https://bugs.freedesktop.org/show_bug.cgi?id=111615
  [fdo#111825]: https://bugs.freedesktop.org/show_bug.cgi?id=111825
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [fdo#112306]: https://bugs.freedesktop.org/show_bug.cgi?id=112306
  [i915#1099]: https://gitlab.freedesktop.org/drm/intel/issues/1099
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#146]: https://gitlab.freedesktop.org/drm/intel/issues/146
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1804]: https://gitlab.freedesktop.org/drm/intel/issues/1804
  [i915#1814]: https://gitlab.freedesktop.org/drm/intel/issues/1814
  [i915#1911]: https://gitlab.freedesktop.org/drm/intel/issues/1911
  [i915#198]: https://gitlab.freedesktop.org/drm/intel/issues/198
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2122]: https://gitlab.freedesktop.org/drm/intel/issues/2122
  [i915#2369]: https://gitlab.freedesktop.org/drm/intel/issues/2369
  [i915#2389]: https://gitlab.freedesktop.org/drm/intel/issues/2389
  [i915#2437]: https://gitlab.freedesktop.org/drm/intel/issues/2437
  [i915#2485]: https://gitlab.freedesktop.org/drm/intel/issues/2485
  [i915#2521]: https://gitlab.freedesktop.org/drm/intel/issues/2521
  [i915#2530]: https://gitlab.freedesktop.org/drm/intel/issues/2530
  [i915#2587]: https://gitlab.freedesktop.org/drm/intel/issues/2587
  [i915#2642]: https://gitlab.freedesktop.org/drm/intel/issues/2642
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#2658]: https://gitlab.freedesktop.org/drm/intel/issues/2658
  [i915#2684]: https://gitlab.freedesktop.org/drm/intel/issues/2684
  [i915#2822]: https://gitlab.freedesktop.org/drm/intel/issues/2822
  [i915#2842]: https://gitlab.freedesktop.org/drm/intel/issues/2842
  [i915#2849]: https://gitlab.freedesktop.org/drm/intel/issues/2849
  [i915#2920]: https://gitlab.freedesktop.org/drm/intel/issues/2920
  [i915#295]: https://gitlab.freedesktop.org/drm/intel/issues/295
  [i915#2994]: https://gitlab.freedesktop.org/drm/intel/issues/2994
  [i915#3002]: https://gitlab.freedesktop.org/drm/intel/issues/3002
  [i915#3063]: https://gitlab.freedesktop.org/drm/intel/issues/3063
  [i915#307]: https://gitlab.freedesktop.org/drm/intel/issues/307
  [i915#3319]: https://gitlab.freedesktop.org/drm/intel/issues/3319
  [i915#3359]: https://gitlab.freedesktop.org/drm/intel/issues/3359
  [i915#3363]: https://gitlab.freedesktop.org/drm/intel/issues/3363
  [i915#3536]: https://gitlab.freedesktop.org/drm/intel/issues/3536
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#533]: https://gitlab.freedesktop.org/drm/intel/issues/533
  [i915#602]: https://gitlab.freedesktop.org/drm/intel/issues/602
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (10 -> 10)
------------------------------

  No changes in participating hosts


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

  * Linux: CI_DRM_10230 -> Patchwork_20388

  CI-20190529: 20190529
  CI_DRM_10230: 03937139a4149d1cb76e7677e5da15bc414d56dc @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6109: 61ba2ed489540e6a8a649be38abb075b3ab4d28a @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_20388: 1b20c87251a72547fda1b1a3597b196a86d0813d @ 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_20388/index.html

[-- Attachment #1.2: Type: text/html, Size: 36261 bytes --]

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

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

RE: [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Mason, Michael W]

This fixes the NULL pointer dereference in i915_fence_get_driver_name(), 
but now it crashes in i915_fence_get_timeline with another NULL pointer
dereference. It attempts to use i915_gem_context.name, which apparently
also hasn't been initialized

static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
{
    const struct i915_gem_context *ctx;

    /*
     * The timeline struct (as part of the ppgtt underneath a context)
     * may be freed when the request is no longer in use by the GPU.
     * We could extend the life of a context to beyond that of all
     * fences, possibly keeping the hw resource around indefinitely,
     * or we just give them a false name. Since
     * dma_fence_ops.get_timeline_name is a debug feature, the occasional
     * lie seems justifiable.
     */
    if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
        return "signaled";

    ctx = i915_request_gem_context(to_request(fence));
    if (!ctx)
        return "[" DRIVER_NAME "]";

    return ctx->name;
}

<1>[  414.327761] BUG: kernel NULL pointer dereference, address: 0000000000000020
<1>[  414.327766] #PF: supervisor read access in kernel mode
<1>[  414.327768] #PF: error_code(0x0000) - not-present page
<6>[  414.327769] PGD 0 P4D 0
<4>[  414.327772] Oops: 0000 [#1] PREEMPT SMP NOPTI
<4>[  414.327774] CPU: 3 PID: 1866 Comm: chrome Tainted: G     U            5.4.125 #2
<4>[  414.327776] Hardware name: Google Voxel/Voxel, BIOS Google_Voxel.13913.0.0 04/12/2021
<4>[  414.327781] RIP: 0010:i915_fence_get_timeline_name+0x1d/0x37
<4>[  414.327783] Code: 55 48 89 e5 48 c7 c0 ee d1 72 bd 5d c3 0f 1f 44 00 00 55 48 89 e5 48 8b 4f 30 48 c7 c0 b4 49 72 bd f6 c1 01 75 1c 48 8b 47 60 <48> 8b 40 20 48 85 c0 74 08 48 05 30 01 00 00 eb 07 48 c7 c0 79 7b
<4>[  414.327785] RSP: 0018:ffffa4a300d177b8 EFLAGS: 00010246
<4>[  414.327787] RAX: 0000000000000000 RBX: ffffffffbd7a8680 RCX: 0000000000000000
<4>[  414.327788] RDX: ffff9c27b3b0f4c0 RSI: ffff9c27b3b0f480 RDI: ffff9c27b3b0f480
<4>[  414.327789] RBP: ffffa4a300d177b8 R08: 0000000000000000 R09: 0000000000000004
<4>[  414.327791] R10: 0000000000000001 R11: ffffffffbca45536 R12: 0000000000000005
<4>[  414.327792] R13: 0000000000000004 R14: ffff9c27b6c79bb0 R15: ffff9c27b3b0f480
<4>[  414.327794] FS:  00007898a2965e00(0000) GS:ffff9c27b7f80000(0000) knlGS:0000000000000000
<4>[  414.327795] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[  414.327797] CR2: 0000000000000020 CR3: 000000022ded2006 CR4: 0000000000762ee0
<4>[  414.327798] PKRU: 55555554
<4>[  414.327799] Call Trace:
<4>[  414.327804]  trace_event_raw_event_dma_fence+0xc9/0x1e5
<4>[  414.327807]  dma_fence_init+0xa6/0xca
<4>[  414.327809]  __i915_request_ctor+0x7f/0xa9
<4>[  414.327812]  setup_object+0x88/0x8a
<4>[  414.327815]  new_slab+0x22e/0x429
<4>[  414.327817]  ___slab_alloc+0x2c8/0x42e
<4>[  414.327820]  ? __i915_request_create+0x68/0x238
<4>[  414.327822]  ? __i915_request_create+0x68/0x238
<4>[  414.327824]  __slab_alloc+0x3c/0x5f
<4>[  414.327826]  kmem_cache_alloc+0x19b/0x201
<4>[  414.327828]  __i915_request_create+0x68/0x238
<4>[  414.327830]  i915_request_create+0x8a/0xca
<4>[  414.327833]  i915_gem_do_execbuffer+0x12f9/0x1830
<4>[  414.327837]  i915_gem_execbuffer2_ioctl+0x157/0x398
<4>[  414.327839]  ? i915_gem_do_execbuffer+0x1830/0x1830
<4>[  414.327840]  drm_ioctl_kernel+0x94/0xf6
<4>[  414.327842]  drm_ioctl+0x276/0x39b
<4>[  414.327845]  ? i915_gem_do_execbuffer+0x1830/0x1830
<4>[  414.327847]  do_vfs_ioctl+0x4f4/0x771
<4>[  414.327849]  ksys_ioctl+0x58/0x83
<4>[  414.327851]  __x64_sys_ioctl+0x1a/0x1e
<4>[  414.327853]  do_syscall_64+0x54/0x7e
<4>[  414.327856]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4>[  414.327859] RIP: 0033:0x7898a2f88f07

> -----Original Message-----
> From: Auld, Matthew <matthew.auld@intel.com>
> Sent: Wednesday, June 16, 2021 5:29 AM
> To: intel-gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org; Mason, Michael W
> <michael.w.mason@intel.com>; Daniel Vetter <daniel@ffwll.ch>
> Subject: [PATCH] drm/i915: return DRIVER_NAME for the fence driver name
> 
> The first tracepoint for a request is trace_dma_fence_init which is called in
> the ctor before we have properly setup the request->engine. So if it's a non-
> recycled request the rq->engine might be NULL, or some garbage value,
> which leads to a crash.
> 
> Since we are not permitted to use kmem_cache_zalloc() here with
> SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME.
> We can then revisit this later if we decide to get rid of
> SLAB_TYPESAFE_BY_RCU.
> 
> Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring
> seqno")
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Michael Mason <michael.w.mason@intel.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> ---
>  drivers/gpu/drm/i915/i915_request.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_request.c
> b/drivers/gpu/drm/i915/i915_request.c
> index 1014c71cf7f5..55fa94bde22e 100644
> --- a/drivers/gpu/drm/i915/i915_request.c
> +++ b/drivers/gpu/drm/i915/i915_request.c
> @@ -61,7 +61,7 @@ static struct i915_global_request {
> 
>  static const char *i915_fence_get_driver_name(struct dma_fence *fence)  {
> -	return dev_name(to_request(fence)->engine->i915->drm.dev);
> +	return DRIVER_NAME;
>  }
> 
>  static const char *i915_fence_get_timeline_name(struct dma_fence
> *fence)
> --
> 2.26.3

Re: [Intel-gfx] [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Mason, Michael W]

This fixes the NULL pointer dereference in i915_fence_get_driver_name(), 
but now it crashes in i915_fence_get_timeline with another NULL pointer
dereference. It attempts to use i915_gem_context.name, which apparently
also hasn't been initialized

static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
{
    const struct i915_gem_context *ctx;

    /*
     * The timeline struct (as part of the ppgtt underneath a context)
     * may be freed when the request is no longer in use by the GPU.
     * We could extend the life of a context to beyond that of all
     * fences, possibly keeping the hw resource around indefinitely,
     * or we just give them a false name. Since
     * dma_fence_ops.get_timeline_name is a debug feature, the occasional
     * lie seems justifiable.
     */
    if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
        return "signaled";

    ctx = i915_request_gem_context(to_request(fence));
    if (!ctx)
        return "[" DRIVER_NAME "]";

    return ctx->name;
}

<1>[  414.327761] BUG: kernel NULL pointer dereference, address: 0000000000000020
<1>[  414.327766] #PF: supervisor read access in kernel mode
<1>[  414.327768] #PF: error_code(0x0000) - not-present page
<6>[  414.327769] PGD 0 P4D 0
<4>[  414.327772] Oops: 0000 [#1] PREEMPT SMP NOPTI
<4>[  414.327774] CPU: 3 PID: 1866 Comm: chrome Tainted: G     U            5.4.125 #2
<4>[  414.327776] Hardware name: Google Voxel/Voxel, BIOS Google_Voxel.13913.0.0 04/12/2021
<4>[  414.327781] RIP: 0010:i915_fence_get_timeline_name+0x1d/0x37
<4>[  414.327783] Code: 55 48 89 e5 48 c7 c0 ee d1 72 bd 5d c3 0f 1f 44 00 00 55 48 89 e5 48 8b 4f 30 48 c7 c0 b4 49 72 bd f6 c1 01 75 1c 48 8b 47 60 <48> 8b 40 20 48 85 c0 74 08 48 05 30 01 00 00 eb 07 48 c7 c0 79 7b
<4>[  414.327785] RSP: 0018:ffffa4a300d177b8 EFLAGS: 00010246
<4>[  414.327787] RAX: 0000000000000000 RBX: ffffffffbd7a8680 RCX: 0000000000000000
<4>[  414.327788] RDX: ffff9c27b3b0f4c0 RSI: ffff9c27b3b0f480 RDI: ffff9c27b3b0f480
<4>[  414.327789] RBP: ffffa4a300d177b8 R08: 0000000000000000 R09: 0000000000000004
<4>[  414.327791] R10: 0000000000000001 R11: ffffffffbca45536 R12: 0000000000000005
<4>[  414.327792] R13: 0000000000000004 R14: ffff9c27b6c79bb0 R15: ffff9c27b3b0f480
<4>[  414.327794] FS:  00007898a2965e00(0000) GS:ffff9c27b7f80000(0000) knlGS:0000000000000000
<4>[  414.327795] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[  414.327797] CR2: 0000000000000020 CR3: 000000022ded2006 CR4: 0000000000762ee0
<4>[  414.327798] PKRU: 55555554
<4>[  414.327799] Call Trace:
<4>[  414.327804]  trace_event_raw_event_dma_fence+0xc9/0x1e5
<4>[  414.327807]  dma_fence_init+0xa6/0xca
<4>[  414.327809]  __i915_request_ctor+0x7f/0xa9
<4>[  414.327812]  setup_object+0x88/0x8a
<4>[  414.327815]  new_slab+0x22e/0x429
<4>[  414.327817]  ___slab_alloc+0x2c8/0x42e
<4>[  414.327820]  ? __i915_request_create+0x68/0x238
<4>[  414.327822]  ? __i915_request_create+0x68/0x238
<4>[  414.327824]  __slab_alloc+0x3c/0x5f
<4>[  414.327826]  kmem_cache_alloc+0x19b/0x201
<4>[  414.327828]  __i915_request_create+0x68/0x238
<4>[  414.327830]  i915_request_create+0x8a/0xca
<4>[  414.327833]  i915_gem_do_execbuffer+0x12f9/0x1830
<4>[  414.327837]  i915_gem_execbuffer2_ioctl+0x157/0x398
<4>[  414.327839]  ? i915_gem_do_execbuffer+0x1830/0x1830
<4>[  414.327840]  drm_ioctl_kernel+0x94/0xf6
<4>[  414.327842]  drm_ioctl+0x276/0x39b
<4>[  414.327845]  ? i915_gem_do_execbuffer+0x1830/0x1830
<4>[  414.327847]  do_vfs_ioctl+0x4f4/0x771
<4>[  414.327849]  ksys_ioctl+0x58/0x83
<4>[  414.327851]  __x64_sys_ioctl+0x1a/0x1e
<4>[  414.327853]  do_syscall_64+0x54/0x7e
<4>[  414.327856]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4>[  414.327859] RIP: 0033:0x7898a2f88f07

> -----Original Message-----
> From: Auld, Matthew <matthew.auld@intel.com>
> Sent: Wednesday, June 16, 2021 5:29 AM
> To: intel-gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org; Mason, Michael W
> <michael.w.mason@intel.com>; Daniel Vetter <daniel@ffwll.ch>
> Subject: [PATCH] drm/i915: return DRIVER_NAME for the fence driver name
> 
> The first tracepoint for a request is trace_dma_fence_init which is called in
> the ctor before we have properly setup the request->engine. So if it's a non-
> recycled request the rq->engine might be NULL, or some garbage value,
> which leads to a crash.
> 
> Since we are not permitted to use kmem_cache_zalloc() here with
> SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME.
> We can then revisit this later if we decide to get rid of
> SLAB_TYPESAFE_BY_RCU.
> 
> Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring
> seqno")
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Michael Mason <michael.w.mason@intel.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> ---
>  drivers/gpu/drm/i915/i915_request.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_request.c
> b/drivers/gpu/drm/i915/i915_request.c
> index 1014c71cf7f5..55fa94bde22e 100644
> --- a/drivers/gpu/drm/i915/i915_request.c
> +++ b/drivers/gpu/drm/i915/i915_request.c
> @@ -61,7 +61,7 @@ static struct i915_global_request {
> 
>  static const char *i915_fence_get_driver_name(struct dma_fence *fence)  {
> -	return dev_name(to_request(fence)->engine->i915->drm.dev);
> +	return DRIVER_NAME;
>  }
> 
>  static const char *i915_fence_get_timeline_name(struct dma_fence
> *fence)
> --
> 2.26.3

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Thomas Zimmermann]

[-- Attachment #1.1: Type: text/plain, Size: 1811 bytes --]

Hi

Am 16.06.21 um 14:28 schrieb Matthew Auld:
> The first tracepoint for a request is trace_dma_fence_init which is
> called in the ctor before we have properly setup the request->engine. So
> if it's a non-recycled request the rq->engine might be NULL, or some
> garbage value, which leads to a crash.
> 
> Since we are not permitted to use kmem_cache_zalloc() here with
> SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME. We
> can then revisit this later if we decide to get rid of
> SLAB_TYPESAFE_BY_RCU.
> 
> Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Michael Mason <michael.w.mason@intel.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> ---
>   drivers/gpu/drm/i915/i915_request.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
> index 1014c71cf7f5..55fa94bde22e 100644
> --- a/drivers/gpu/drm/i915/i915_request.c
> +++ b/drivers/gpu/drm/i915/i915_request.c
> @@ -61,7 +61,7 @@ static struct i915_global_request {
>   
>   static const char *i915_fence_get_driver_name(struct dma_fence *fence)
>   {
> -	return dev_name(to_request(fence)->engine->i915->drm.dev);
> +	return DRIVER_NAME;

There was recently a discussion about using struct drm_driver.name 
consistently throughout the source code. I'd like to suggest to do this 
here.

Best regards
Thomas

>   }
>   
>   static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer


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Re: [Intel-gfx] [PATCH] drm/i915: return DRIVER_NAME for the fence driver name

[Thomas Zimmermann]

[-- Attachment #1.1.1: Type: text/plain, Size: 1811 bytes --]

Hi

Am 16.06.21 um 14:28 schrieb Matthew Auld:
> The first tracepoint for a request is trace_dma_fence_init which is
> called in the ctor before we have properly setup the request->engine. So
> if it's a non-recycled request the rq->engine might be NULL, or some
> garbage value, which leads to a crash.
> 
> Since we are not permitted to use kmem_cache_zalloc() here with
> SLAB_TYPESAFE_BY_RCU, one approach is simply to return DRIVER_NAME. We
> can then revisit this later if we decide to get rid of
> SLAB_TYPESAFE_BY_RCU.
> 
> Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Michael Mason <michael.w.mason@intel.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> ---
>   drivers/gpu/drm/i915/i915_request.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
> index 1014c71cf7f5..55fa94bde22e 100644
> --- a/drivers/gpu/drm/i915/i915_request.c
> +++ b/drivers/gpu/drm/i915/i915_request.c
> @@ -61,7 +61,7 @@ static struct i915_global_request {
>   
>   static const char *i915_fence_get_driver_name(struct dma_fence *fence)
>   {
> -	return dev_name(to_request(fence)->engine->i915->drm.dev);
> +	return DRIVER_NAME;

There was recently a discussion about using struct drm_driver.name 
consistently throughout the source code. I'd like to suggest to do this 
here.

Best regards
Thomas

>   }
>   
>   static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer


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