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<!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>280334</bug_id>
          
          <creation_ts>2024-09-25 05:46:02 -0700</creation_ts>
          <short_desc>REGRESSION(284072@main): [GStreamer] A lot of media tests crash with Assertion &quot;SHOULD NEVER BE REACHED&quot;</short_desc>
          <delta_ts>2024-09-27 05:59:31 -0700</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>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=275683</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>zsun</reporter>
          <assigned_to name="Enrique Ocaña">eocanha</assigned_to>
          <cc>bugs-noreply</cc>
    
    <cc>eocanha</cc>
    
    <cc>philn</cc>
    
    <cc>vitaly</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2063005</commentid>
    <comment_count>0</comment_count>
    <who name="">zsun</who>
    <bug_when>2024-09-25 05:46:02 -0700</bug_when>
    <thetext>Thread 1 (LWP 975952):
    #0  0x00007f1a13c69494 in ?? ()
    Backtrace stopped: Cannot access memory at address 0x7ffeb75ee488
     
    STDERR: webkitpy.common.system.logutils: [DEBUG] Debug logging enabled.
    STDERR: flatpakutils: [DEBUG] Using flatpak user dir: /home/ziran/WebKit/WebKitBuild/UserFlatpak
    STDERR: flatpakutils: [DEBUG] Building WPE port in /home/ziran/WebKit/WebKitBuild/WPE/Release
    STDERR: flatpakutils: [DEBUG] Running flatpak --version
    STDERR: flatpakutils: [DEBUG] Running flatpak remote-list --help
    STDERR: flatpakutils: [DEBUG] Running flatpak remote-list --user --columns=name,title,url
    STDERR: flatpakutils: [DEBUG] Running flatpak list --help
    STDERR: flatpakutils: [DEBUG] Running flatpak list --user --columns=application,arch,branch,origin -a
    STDERR: flatpakutils: [DEBUG] Running: coredumpctl --since=@1727255832.101814 dump
    STDERR:
    STDERR: flatpakutils: [DEBUG] Found a11y address b&apos;unix:abstract=/tmp/dbus-huaGs8qfVA,guid=74b91fe39c2901f2a3f2f7f666c47c54&apos;
    STDERR: flatpakutils: [DEBUG] Running: flatpak run --user --die-with-parent --filesystem=host --allow=devel --share=network --talk-name=org.gtk.vfs --talk-name=org.gtk.vfs.* --session-bus --no-a11y-bus --filesystem=/tmp/webkit-flatpak-a11y-sockets-ybu4p9mo --env=AT_SPI_BUS_ADDRESS=unix:path=/tmp/webkit-flatpak-a11y-sockets-ybu4p9mo/tmpqqosvj6r --device=all --device=dri --share=ipc --socket=pulseaudio --socket=session-bus --socket=system-bus --socket=wayland --socket=x11 --system-talk-name=org.a11y.Bus --system-talk-name=org.freedesktop.GeoClue2 --talk-name=org.freedesktop.Flatpak --talk-name=org.freedesktop.secrets --env=TEST_RUNNER_INJECTED_BUNDLE_FILENAME=/app/webkit/WebKitBuild/Release/lib/libTestRunnerInjectedBundle.so --env=PATH=/usr/lib/sdk/llvm18/bin:/usr/bin:/usr/lib/sdk/rust-stable/bin/ --env=TZ=America/Los_Angeles --env=GTK_MODULES=gail:atk-bridge --env=DISPLAY=:1 --env=WEBKIT_FLATPAK_USER_DIR=/home/ziran/WebKit/WebKitBuild/UserFlatpak --env=WEBKIT_FLATPAK_LD_PRELOAD=/home/ziran/WebKit/WebKitBuild/WPE/Release/lib/libsigaction-disabler.so --command=gdb org.webkit.Sdk -ex thread apply all backtrace --batch /app/webkit/WebKitBuild/WPE/Release/bin/WPEWebProcess /run/host//tmp/tmpaejy6n0n
    STDERR:
    STDERR: BFD: warning: /run/host//tmp/tmpaejy6n0n has a segment extending past end of file
    STDERR:
    STDERR: warning: Can&apos;t open file /tmp/WebKitTestRunners-sy82aai3/appcache/mesa_shader_cache_db/index during file-backed mapping note processing
    STDERR:
    STDERR: warning: Can&apos;t open file /memfd:mesa-shared (deleted) during file-backed mapping note processing
    STDERR:
    STDERR: warning: Can&apos;t open file /memfd:WebKitSharedMemory (deleted) during file-backed mapping note processing
    STDERR:
    STDERR: warning: Error reading shared library list entry at 0xdaa6893d68844591
    STDERR: Cannot access memory at address 0x7f46b08099d67834
    STDERR: Cannot access memory at address 0x7f46b08099d6782c
    STDERR: Failed to read a valid object file image from memory.
    STDERR: SHOULD NEVER BE REACHED
    STDERR: /app/webkit/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp(1360) : std::optional&lt;int&gt; WebCore::MediaPlayerPrivateGStreamer::queryBufferingPercentage()
    STDERR: 1   0x7f1a16e7b64f WebCore::MediaPlayerPrivateGStreamer::queryBufferingPercentage()
    STDERR: 2   0x7f1a16ea4e05 WebCore::MediaPlayerPrivateGStreamer::fillTimerFired()
    STDERR: 3   0x7f1a16c6e5eb WebCore::ThreadTimers::sharedTimerFiredInternal()
    STDERR: 4   0x7f1a13d7aa25 WTF::RunLoop::TimerBase::TimerBase(WTF::Ref&lt;WTF::RunLoop, WTF::RawPtrTraits&lt;WTF::RunLoop&gt;, WTF::DefaultRefDerefTraits&lt;WTF::RunLoop&gt; &gt;&amp;&amp;)::{lambda(void*)#1}::_FUN(void*)
    STDERR: 5   0x7f1a13d7b46f WTF::RunLoop::{lambda(_GSource*, int (*)(void*), void*)#1}::_FUN(_GSource*, int (*)(void*), void*)
    STDERR: 6   0x7f1a0cafcd36 g_main_context_dispatch
    STDERR: 7   0x7f1a0cb5a2b8 g_main_context_iterate.isra.0
    STDERR: 8   0x7f1a0cafc3ff g_main_loop_run
    STDERR: 9   0x7f1a13d7b658 WTF::RunLoop::run()
    STDERR: 10  0x7f1a11f79f5f int WebKit::AuxiliaryProcessMain&lt;WebKit::WebProcessMainWPE&gt;(int, char**)
    STDERR: 11  0x7f1a0c30908a __libc_start_call_main
    STDERR: 12  0x7f1a0c30914b __libc_start_main
    STDERR: 13  0x55c42783a7e5 _start
    STDERR: WPEWebProcess terminated (pid 975952) for reason: crash</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2063006</commentid>
    <comment_count>1</comment_count>
    <who name="">zsun</who>
    <bug_when>2024-09-25 05:52:03 -0700</bug_when>
    <thetext>Possibly affected tests -

media/audio-concurrent-supported.html
media/audio-constructor-src.html
+media/audio-controls-hidden-display-none.html
+media/audio-data-url.html
+media/audio-mpeg-supported.html
+media/audio-mpeg4-supported.html
+media/audio-play-with-video-element-interrupted.html
+media/audio-playback-restriction-autoplay.html
+media/audio-playback-restriction-play-muted.html
+media/audio-playback-restriction-play.html
+media/audio-playback-restriction-removed-muted.html
+media/audio-playback-restriction-removed-track-enabled.html
+media/auto-play-in-sandbox-with-allow-scripts.html
+media/auto-play-video-in-about-blank-iframe.html
+media/context-menu-actions.html
+media/controls-should-not-trigger-isolates-blending.html
+media/data-url-cross-origin.html
+media/event-attributes.html
+media/event-queue-crash.html
+media/fullscreen-when-muted.html
+media/loadedmetadata-fires-without-user-gesture-when-setRequiresUserGestureToLoadVideo-false.html
+media/media-can-load-when-hidden.html
+media/media-captions-no-controls.html
+media/media-continues-playing-after-replace-source.html
+media/media-controller-play-then-pause.html
+media/media-controller-playback.html	
+media/media-controller-playbackrate.html
+media/media-controller-time-clamp.html
+media/media-controller-time-constant.html
+media/media-controller-time.html
+media/media-controller-timeupdate.html
+media/media-controller-unpause.html
+media/media-css-muted.html
+media/media-element-play-after-eos.html
+media/media-ended-fired-once.html
+media/media-ended.html
+media/media-event-listeners.html
+media/media-extension-with-fragment.html
+media/media-fragments/TC0003.html
+media/media-fragments/TC0005.html
+media/media-fragments/TC0009.html
+media/media-fragments/TC0012.html
+media/media-fragments/TC0014.html
+media/media-fragments/TC0015.html
+media/media-fragments/TC0017.html
+media/media-fragments/TC0024.html
+media/media-fragments/TC0027.html
+media/media-fragments/TC0028.html
+media/media-fragments/TC0029.html
+media/media-fragments/TC0030.html
+media/media-fragments/TC0031.html
+media/media-fragments/TC0032.html
+media/media-fragments/TC0033.html
+media/media-fragments/TC0034.html
+media/media-fragments/TC0035.html
+media/media-fragments/TC0036.html
+media/media-fragments/TC0037.html
+media/media-fragments/TC0038.html
+media/media-fragments/TC0039.html
+media/media-fragments/TC0044.html
+media/media-fragments/TC0051.html
+media/media-fragments/TC0052.html
+media/media-fragments/TC0053.html
+media/media-fragments/TC0054.html
+media/media-fragments/TC0055.html
+media/media-fragments/TC0058.html
+media/media-fragments/TC0059.html
+media/media-fragments/TC0061.html
+media/media-fragments/TC0062.html
+media/media-fragments/TC0063.html
+media/media-fragments/TC0064.html
+media/media-fragments/TC0065.html
+media/media-fragments/TC0066.html
+media/media-fragments/TC0067.html
+media/media-fragments/TC0068.html
+media/media-fragments/TC0069.html
+media/media-fragments/TC0070.html
+media/media-fragments/TC0071.html
+media/media-fragments/TC0072.html
+media/media-fragments/TC0073.html
+media/media-fragments/TC0074.html
+media/media-fragments/TC0075.html
+media/media-fragments/TC0076.html
+media/media-fragments/TC0077.html
+media/media-fragments/TC0078.html
+media/media-fragments/TC0079.html
+media/media-fragments/TC0080.html
+media/media-fragments/TC0081.html
+media/media-fragments/TC0082.html
+media/media-fragments/TC0083.html
+media/media-fragments/TC0084.html
+media/media-fragments/TC0085.html
+media/media-fragments/TC0086.html
+media/media-fragments/TC0087.html
+media/media-fragments/TC0088.html
+media/media-fragments/TC0089.html
+media/media-fragments/TC0090.html
+media/media-fragments/TC0091.html
+media/media-fragments/TC0092.html
+media/media-fragments/TC0093.html
+media/media-fragments/TC0094.html
+media/media-fragments/TC0095.html
+media/media-fullscreen-inline.html
+media/media-fullscreen-not-in-document.html
+media/media-load-event.html
+media/media-play-promise-reject-load-abort.html
+media/media-play-promise-reject-play-notallowed-audio.html
+media/media-play-promise-reject-play-notallowed.html
+media/media-play-promise-resolve-when-playing.html
+media/media-play-promise-resolve.html
+media/media-playback-page-visibility.html
+media/media-session/default-actionHandlers.html
+media/media-sources-selection.html
+media/media-vp8-hiddenframes.html
+media/media-vp8-webm-error.html
+media/media-vp8-webm-seek-to-start.html
+media/media-vp8-webm-with-poster.html
+media/media-vp8-webm.html
+media/media-webm-opus-buffered.html
+media/media-webm-opus-error.html
+media/media-webm-opus-variable-length.html
+media/modern-media-controls/controls-visibility-support/controls-visibility-support-controls-off.html
+media/modern-media-controls/controls-visibility-support/controls-visibility-support-controls-on.html

and more in media/</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2063008</commentid>
    <comment_count>2</comment_count>
    <who name="Enrique Ocaña">eocanha</who>
    <bug_when>2024-09-25 06:02:25 -0700</bug_when>
    <thetext>This was caused by my https://commits.webkit.org/284072@main patch. A video can work in two modes: streaming mode (GstQueue2 element is used, GST_MESSAGE_BUFFERING is relied upon to get buffering info) or download mode (GstDownloadBuffer element is used, fillTimer is used to poll its buffering percentage). The [failing ASSERT_NOT_REACHED()](https://github.com/WebKit/WebKit/blob/main/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp#L1363) is hinting about a mismatch in these assumptions, which needs to be debugged.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2063009</commentid>
    <comment_count>3</comment_count>
    <who name="">zsun</who>
    <bug_when>2024-09-25 06:18:39 -0700</bug_when>
    <thetext>Just to update, this also happens to some other tests that are not in media/ directory. For example, 

+accessibility/video-element-url-attribute.html
+compositing/geometry/clipped-video-controller.html
+compositing/geometry/video-fixed-scrolling.html
+compositing/geometry/video-opacity-overlay.html
+compositing/layers-inside-overflow-scroll.html	
+compositing/overflow/overflow-compositing-descendant.html
+compositing/overflow/scroll-ancestor-update.html
+compositing/reflections/load-video-in-reflection.html
+compositing/self-painting-layers.html
+compositing/self-painting-layers2.html
+compositing/shared-backing/clipping-and-shared-backing.html
+compositing/video-page-visibility.html
+compositing/video/poster.html
+compositing/video/video-border-radius-clipping.html
+compositing/video/video-border-radius.html
+compositing/video/video-clip-change-src.htm
+compositing/video/video-object-fit.html
+compositing/video/video-object-position.html
+compositing/video/video-poster.html
+compositing/video/video-reflection.html
+compositing/video/video-update-rendering.html
+compositing/visibility/visibility-simple-video-layer.html
+fast/canvas/canvas-createPattern-video-loading.html
+fast/canvas/canvas-createPattern-video-modify.html
+fast/canvas/webgl/tex-image-and-sub-image-2d-with-video-rgb565.html
+fast/canvas/webgl/tex-image-and-sub-image-2d-with-video-rgba4444.html
+fast/canvas/webgl/tex-image-and-sub-image-2d-with-video-rgba5551.html
+fast/canvas/webgl/tex-image-and-sub-image-2d-with-video.html

And more...</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2063070</commentid>
    <comment_count>4</comment_count>
    <who name="Enrique Ocaña">eocanha</who>
    <bug_when>2024-09-25 11:43:58 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/34235</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2063723</commentid>
    <comment_count>5</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2024-09-27 05:59:28 -0700</bug_when>
    <thetext>Committed 284353@main (ae4d384da8af): &lt;https://commits.webkit.org/284353@main&gt;

Reviewed commits have been landed. Closing PR #34235 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>