<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>287572</bug_id>
          
          <creation_ts>2025-02-12 11:18:09 -0800</creation_ts>
          <short_desc>[WPE] Unexpected failures that happen with WEBKIT_SKIA_ENABLE_CPU_RENDERING=1</short_desc>
          <delta_ts>2025-02-14 08:04:50 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>WPE WebKit</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=287573</see_also>
    
    <see_also>https://bugs.webkit.org/show_bug.cgi?id=287632</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Carlos Alberto Lopez Perez">clopez</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>bugs-noreply</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2094197</commentid>
    <comment_count>0</comment_count>
    <who name="Carlos Alberto Lopez Perez">clopez</who>
    <bug_when>2025-02-12 11:18:09 -0800</bug_when>
    <thetext>On the WPE bots we enabled WEBKIT_SKIA_ENABLE_CPU_RENDERING=1 on the environment

Since we did that we observed around ~140 new unexpected failures/crashes

We enabled that at around 289932@main

This are two runs at 289932@main with the two options:

https://build.webkit.org/#/builders/40/builds/19480 -&gt; Skia GPU: 54 new passes 46 flakes 116 failures
https://build.webkit.org/#/builders/40/builds/19484 -&gt; Skia CPU: 96 new passes 26 flakes 254 failures


This is the list of tests that fail with Skia CPU but pass with Skia GPU

compositing/clipping/border-radius-async-overflow-stacking.html [ ImageOnlyFailure ]
compositing/overlap-blending/reflection-opacity-huge.html [ ImageOnlyFailure ]
css3/background/background-repeat-space-border.html [ ImageOnlyFailure ]
css3/background/background-repeat-space-padding.html [ ImageOnlyFailure ]
css3/filters/backdrop/backdrop-filter-with-border-radius-and-reflection-add.html [ ImageOnlyFailure ]
css3/filters/backdrop/backdrop-filter-with-border-radius-and-reflection.html [ ImageOnlyFailure ]
fast/backgrounds/opaque-background-bleed-avoidance.html [ ImageOnlyFailure ]
fast/canvas/canvas-bg.html [ Crash ]
fast/css/cascade/box-shadow-and-webkit-box-shadow-cascade-order.html [ ImageOnlyFailure ]
fast/css/sticky/sticky-overflowing.html [ ImageOnlyFailure ]
fast/filter-image/clipped-filter.html [ ImageOnlyFailure ]
fast/images/large-image-webkit-canvas.html [ Crash ]
fast/inline/out-of-flow-with-static-position-in-ifc.html [ ImageOnlyFailure ]
fast/lists/list-marker-before-float-nested-rtl.html [ ImageOnlyFailure ]
fast/lists/list-marker-before-float-rtl.html [ ImageOnlyFailure ]
fast/multicol/border-radius-overflow-columns.html [ ImageOnlyFailure ]
fast/multicol/client-rects.html [ ImageOnlyFailure ]
fast/multicol/multicol-with-child-renderLayer-for-input.html [ ImageOnlyFailure ]
fast/text/empty-shadow.html [ ImageOnlyFailure ]
fast/text/multiple-text-shadow-overflow-layout-rect.html [ ImageOnlyFailure ]
imported/mozilla/svg/filters-and-group-opacity-01.svg [ ImageOnlyFailure ]
imported/mozilla/svg/markers-and-group-opacity-01.svg [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/compositing/mix-blend-mode/mix-blend-mode-canvas-parent.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/compositing/mix-blend-mode/mix-blend-mode-canvas-sibling.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/compositing/mix-blend-mode/mix-blend-mode-iframe-parent.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/compositing/mix-blend-mode/mix-blend-mode-iframe-sibling.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/compositing/mix-blend-mode/mix-blend-mode-plus-lighter-basic.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/compositing/root-element-background-image-transparency-003.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-backgrounds/background-repeat/background-repeat-round-roundup.xht [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-backgrounds/border-top-right-radius-004.xht [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-images/image-orientation/image-orientation-background-properties-border-radius.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-images/image-orientation/image-orientation-background-properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-borderBox-1e.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-ellipse-closest-farthest-corner.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-masking/clip-path/clip-path-xywh-003.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-scrollbars/textarea-scrollbar-width-none.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-transforms/transform-background-005.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/css-transforms/transform-percent-008.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/filter-effects/root-element-with-opacity-filter-001.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/motion/offset-path-shape-circle-001.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/motion/offset-path-shape-circle-008.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/css/selectors/focus-within-004.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/html/canvas/element/manual/drawing-images-to-the-canvas/image-orientation/drawImage-from-blob.tentative.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/html/canvas/element/manual/fill-and-stroke-styles/conic-gradient.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/html/canvas/element/manual/fill-and-stroke-styles/conic-gradient-rotation.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/html/canvas/element/manual/imagebitmap/imageBitmapRendering-transferFromImageBitmap-flipped.html [ Crash ]
imported/w3c/web-platform-tests/html/canvas/element/manual/imagebitmap/imageBitmapRendering-transferFromImageBitmap.html [ Crash ]
imported/w3c/web-platform-tests/html/canvas/element/manual/imagebitmap/imageBitmapRendering-transferFromImageBitmap-webgl.html [ Crash ]
imported/w3c/web-platform-tests/html/canvas/element/manual/imagebitmap/imagebitmap-replication-exif-orientation.html [ Crash ]
imported/w3c/web-platform-tests/svg/geometry/reftests/percentage-attribute.svg [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/svg/geometry/reftests/percentage.svg [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/svg/painting/reftests/percentage-attribute.svg [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/svg/painting/reftests/percentage.svg [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/svg/text/reftests/opacity.svg [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down.html [ Timeout ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up.html [ Timeout ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style.html [ ImageOnlyFailure ]
imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style.html [ ImageOnlyFailure ]
scrollbars/scrollbar-parts-opacity.html [ ImageOnlyFailure ]
svg/animations/animateMotion-accumulate-2a.svg [ ImageOnlyFailure ]
svg/animations/animateMotion-accumulate-2b.svg [ ImageOnlyFailure ]
svg/canvas/canvas-global-alpha-svg.html [ ImageOnlyFailure ]
svg/clip-path/clip-opacity.html [ ImageOnlyFailure ]
svg/clip-path/clip-opacity-translate.svg [ ImageOnlyFailure ]
svg/compositing/outermost-svg-directly-composited-transformed-group-child.html [ ImageOnlyFailure ]
svg/compositing/outermost-svg-with-border.html [ ImageOnlyFailure ]
svg/compositing/outermost-svg-with-border-overflow-visible.html [ ImageOnlyFailure ]
svg/compositing/outermost-svg-with-border-padding-margin.html [ ImageOnlyFailure ]
svg/compositing/svg-poster-circle.html [ ImageOnlyFailure ]
svg/filters/filter-on-root-tile-boundary.html [ ImageOnlyFailure ]
svg/W3C-SVG-1.2-Tiny/struct-use-recursion-01-t.svg [ ImageOnlyFailure ]</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2094204</commentid>
    <comment_count>1</comment_count>
    <who name="Carlos Alberto Lopez Perez">clopez</who>
    <bug_when>2025-02-12 11:34:29 -0800</bug_when>
    <thetext>Gardening commit landed on https://commits.webkit.org/290283@main</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2094776</commentid>
    <comment_count>2</comment_count>
    <who name="Carlos Alberto Lopez Perez">clopez</who>
    <bug_when>2025-02-14 08:04:50 -0800</bug_when>
    <thetext>In the end we decided to rework this to not have two split environments (developers vs bots)

So I reverted the changes on all the bots, they are not longer setting up that variable on the environment

And instead I landed https://commits.webkit.org/290397@main which sets that variable from the python tooling for everyone (bots and developers).</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>