312631 2026-04-17 22:21:50 -0700 REGRESSION(311425@main): [GLIB] imported/w3c/web-platform-tests/html/semantics/embedded-content/the-video-element/resize-during-playback.html crashes 2026-04-20 04:01:20 -0700 1 1 1 Unclassified WebKit WPE WebKit WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 312762 P2 Normal --- 1 csaavedra webkit-unassigned bugs-noreply cgarcia vitaly zimmermann oldest_to_newest 2201774 0 csaavedra 2026-04-17 22:21:50 -0700 In post-commit bots this test is constantly crashing: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fembedded-content%2Fthe-video-element%2Fresize-during-playback.html Thread 1 (Thread 0x7f1820ff96c0 (LWP 1014702)): #0 __memcpy_avx512_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:461 #1 0x00007f1a35a37ec2 in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #2 0x00007f1a35c37804 in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #3 0x00007f1a36359b7a in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #4 0x00007f1a35651f9b in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #5 0x00007f1a35622282 in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #6 0x00007f1a356257f3 in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #7 0x00007f1a3562c1a9 in ?? () from /lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so #8 0x00007f1ababc5caa in WebCore::BitmapTexture::updateContents(void const*, WebCore::IntRect const&, WebCore::IntPoint const&, int, WebCore::PixelFormat) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #9 0x00007f1abac17e99 in WebCore::CoordinatedPlatformLayerBufferVideo::createBufferFromMappedFrameIfNeeded() [clone .part.0] () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #10 0x00007f1abac1808c in WebCore::CoordinatedPlatformLayerBufferVideo::paintToTextureMapper(WebCore::TextureMapper&, WebCore::FloatRect const&, WebCore::TransformationMatrix const&, float) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #11 0x00007f1ababdc22f in WebCore::TextureMapperLayer::paintSelf(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #12 0x00007f1ababe63c0 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #13 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #14 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #15 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #16 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #17 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #18 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #19 0x00007f1ababe6768 in WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #20 0x00007f1ababe8be0 in WebCore::TextureMapperLayer::paint(WebCore::TextureMapper&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #21 0x00007f1abab429ca in WebKit::ThreadedCompositor::paintToTextureMapper(WebCore::TransformationMatrix const&, WebCore::IntSize const&, WTF::OptionSet<WebCore::CompositionReason, (WTF::ConcurrencyTag)0> const&) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #22 0x00007f1abab46485 in WebKit::ThreadedCompositor::renderLayerTree() () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #23 0x00007f1abab3ec55 in WTF::Detail::CallableWrapper<WTF::RunLoop::Timer::Timer<WebKit::ThreadedCompositor>(WTF::Ref<WTF::RunLoop, WTF::RawPtrTraits<WTF::RunLoop>, WTF::DefaultRefDerefTraits<WTF::RunLoop> >&&, WTF::ASCIILiteral, WebKit::ThreadedCompositor*, void (WebKit::ThreadedCompositor::*)())::{lambda()#1}, void>::call() () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libwebkitgtk-6.0.so.4 #24 0x00007f1ab648d9e1 in WTF::RunLoop::TimerBase::TimerBase(WTF::Ref<WTF::RunLoop, WTF::RawPtrTraits<WTF::RunLoop>, WTF::DefaultRefDerefTraits<WTF::RunLoop> >&&, WTF::ASCIILiteral)::{lambda(void*)#1}::_FUN(void*) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1 #25 0x00007f1ab64911dd in WTF::RunLoop::{lambda(_GSource*, int (*)(void*), void*)#1}::_FUN(_GSource*, int (*)(void*), void*) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1 #26 0x00007f1ab695ff7f in g_main_dispatch (context=context@entry=0x7f17fc000b70) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:3357 #27 0x00007f1ab69626f8 in g_main_context_dispatch_unlocked (context=0x7f17fc000b70) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:4208 #28 g_main_context_dispatch (context=0x7f17fc000b70) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:4196 #29 0x00007f1ab648f594 in WTF::RunLoop::runGLibMainLoopIteration(WTF::RunLoop::MayBlock) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1 #30 0x00007f1ab648f832 in WTF::RunLoop::run() () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1 #31 0x00007f1ab640dc3d in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1 #32 0x00007f1ab649500d in WTF::wtfThreadEntryPoint(void*) () from /sdk/webkit/WebKitBuild/GTK/Release/lib/libjavascriptcoregtk-6.0.so.1 #33 0x00007f1ab7c8aaa4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447 #34 0x00007f1ab7d17c6c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78 https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/311441@main%20(24650)/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-video-element/resize-during-playback-crash-log.txt 2202189 1 csaavedra 2026-04-20 04:01:20 -0700 *** This bug has been marked as a duplicate of bug 312762 ***