RESOLVED FIXED310739
[WPE] imported/w3c/web-platform-tests/editing/other/copy-elements-with-css-vars.tentative.html is a flaky crash 
https://bugs.webkit.org/show_bug.cgi?id=310739
Summary [WPE] imported/w3c/web-platform-tests/editing/other/copy-elements-with-css-va...
Nikolas Zimmermann
Reported 2026-03-25 15:59:26 PDT
309900@main UNKNOWN 309901@main TEXT CRASH (Expected: PASS) 309902@main UNKNOWN 309903@main TEXT CRASH (Expected: PASS) [309904@main-309906@main] UNKNOWN [309907@main-309908@main] CRASH (Expected: PASS) [309909@main-309911@main] UNKNOWN 309912@main CRASH (Expected: PASS) 309913@main TEXT CRASH (Expected: PASS) 309914@main CRASH (Expected: PASS) [309915@main-309917@main] UNKNOWN 309918@main CRASH (Expected: PASS) [309919@main-309921@main] UNKNOWN 309922@main CRASH (Expected: PASS) The bot wpe-release completed 1456 runs on the interval [305922@main-309922@main] Frequency of results for test: imported/w3c/web-platform-tests/editing/other/copy-elements-with-css-vars.tentative.html 1445 times [99.2%] -> NOERROR 4 times [0.3%] -> TEXT CRASH 7 times [0.5%] -> CRASH Of those 1456 runs it didn't match the expectation 11 times [0.8%] Details of the type and frequency of unmatched expectations: 4 times [0.3%] -> TEXT CRASH (Expected: PASS) 7 times [0.5%] -> CRASH (Expected: PASS) Flakiness factor: 0.5% - This test was flaky on 0.5% of the 1456 runs analyzed, either giving different results within a single run, or a different result than in the previous run.
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Fujii Hironori
Comment 1 2026-04-17 00:35:28 PDT
https://build.webkit.org/results/WPE-Linux-64-bit-Release-Tests/311425@main%20(26695)/imported/w3c/web-platform-tests/editing/other/copy-elements-with-css-vars.tentative-crash-log.txt Thread 1 (Thread 0x7fa99487bac0 (LWP 1570505)): #0 g_logv (log_domain=0x7fa9a742200e "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7ffd4437b370) at ../../../../../jhbuild/checkout/glib/glib/gmessages.c:1277 #1 0x00007fa9a73cad73 in g_log (log_domain=log_domain@entry=0x7fa9a742200e "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7fa9a742408e "%s: assertion '%s' failed") at ../../../../../jhbuild/checkout/glib/glib/gmessages.c:1315 #2 0x00007fa9a73cbd7d in g_return_if_fail_warning (log_domain=log_domain@entry=0x7fa9a742200e "GLib", pretty_function=pretty_function@entry=0x7fa9a74391d8 <__func__.7> "g_strv_length", expression=expression@entry=0x7fa9a7424ca3 "str_array != NULL") at ../../../../../jhbuild/checkout/glib/glib/gmessages.c:3000 #3 0x00007fa9a73e723e in g_strv_length (str_array=0x0) at ../../../../../jhbuild/checkout/glib/glib/gstrfuncs.c:2988 #4 g_strv_length (str_array=<optimized out>) at ../../../../../jhbuild/checkout/glib/glib/gstrfuncs.c:2984 #5 0x00007fa9a0dbc896 in WebKit::clipboardFormats(_WPEClipboard*) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #6 0x00007fa9a0dbe9d5 in WebKit::WebPasteboardProxy::getTypes(WTF::String const&, WTF::CompletionHandler<void (WTF::Vector<WTF::String, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #7 0x00007fa9a047dab2 in void IPC::handleMessageSynchronous<Messages::WebPasteboardProxy::GetTypes, WebKit::WebPasteboardProxy, WebKit::WebPasteboardProxy, void (WTF::String const&, WTF::CompletionHandler<void (WTF::Vector<WTF::String, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&)>(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&, WebKit::WebPasteboardProxy*, void (WebKit::WebPasteboardProxy::*)(WTF::String const&, WTF::CompletionHandler<void (WTF::Vector<WTF::String, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&)) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #8 0x00007fa9a09d09d4 in IPC::MessageReceiverMap::dispatchSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #9 0x00007fa9a0b78250 in WebKit::WebProcessProxy::dispatchSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #10 0x00007fa9a048760c in WebKit::WebProcessProxy::didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #11 0x00007fa9a09c8df0 in IPC::Connection::dispatchSyncMessage(IPC::Decoder&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #12 0x00007fa9a09c90ed in IPC::Connection::dispatchMessage(WTF::UniqueRef<IPC::Decoder>) [clone .part.0] () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #13 0x00007fa9a09cae08 in IPC::Connection::SyncMessageState::dispatchMessages(WTF::Function<void (IPC::MessageName, unsigned long)>&&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #14 0x00007fa9a09cbcd5 in IPC::Connection::waitForSyncReply(WTF::ObjectIdentifierGeneric<IPC::SyncRequestIDType, WTF::ObjectIdentifierThreadSafeAccessTraits<unsigned long>, unsigned long>, IPC::MessageName, IPC::Timeout, WTF::OptionSet<IPC::SendSyncOption, (WTF::ConcurrencyTag)0>) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #15 0x00007fa9a09cc200 in IPC::Connection::sendSyncMessage(WTF::ObjectIdentifierGeneric<IPC::SyncRequestIDType, WTF::ObjectIdentifierThreadSafeAccessTraits<unsigned long>, unsigned long>, WTF::UniqueRef<IPC::Encoder>&&, IPC::Timeout, WTF::OptionSet<IPC::SendSyncOption, (WTF::ConcurrencyTag)0>) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #16 0x00007fa9a09c8878 in IPC::Connection::sendMessageImpl(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption, (WTF::ConcurrencyTag)0>, std::optional<WTF::Thread::QOS>) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #17 0x00007fa9a0a543d2 in WebKit::AuxiliaryProcessProxy::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption, (WTF::ConcurrencyTag)0>, std::optional<IPC::ConnectionAsyncReplyHandler>, WebKit::AuxiliaryProcessProxy::ShouldStartProcessThrottlerActivity) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #18 0x00007fa9a0ada883 in bool WebKit::AuxiliaryProcessProxy::send<Messages::WebPage::KeyEvent>(Messages::WebPage::KeyEvent&&, unsigned long, WTF::OptionSet<IPC::SendOption, (WTF::ConcurrencyTag)0>) [clone .isra.0] () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #19 0x00007fa9a0af1663 in WebKit::WebPageProxy::sendKeyEvent(WebKit::NativeWebKeyboardEvent const&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #20 0x00007fa9a0b2c2ab in WebKit::WebPageProxy::handleKeyboardEvent(WebKit::NativeWebKeyboardEvent const&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #21 0x00007fa9a0c92289 in WKWPE::ViewPlatform::handleEvent(_WPEEvent*) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #22 0x00007fa9a71edb16 in ?? () from /lib/x86_64-linux-gnu/libffi.so.8 #23 0x00007fa9a71ea3ef in ?? () from /lib/x86_64-linux-gnu/libffi.so.8 #24 0x00007fa9a71ed0be in ffi_call () from /lib/x86_64-linux-gnu/libffi.so.8 #25 0x00007fa9a729cb92 in g_cclosure_marshal_generic (closure=<optimized out>, return_gvalue=<optimized out>, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=<optimized out>) at ../../../../../jhbuild/checkout/glib/gobject/gclosure.c:1537 #26 0x00007fa9a729c120 in g_closure_invoke (closure=0x560f35c4cec0, return_value=0x7ffd4437c130, n_param_values=2, param_values=0x7ffd4437c1c0, invocation_hint=0x7ffd4437c110) at ../../../../../jhbuild/checkout/glib/gobject/gclosure.c:833 #27 0x00007fa9a72b1449 in signal_emit_unlocked_R (node=node@entry=0x7ffd4437c290, detail=detail@entry=0, instance=instance@entry=0x560f35c1cc50, emission_return=emission_return@entry=0x7ffd4437c310, instance_and_params=instance_and_params@entry=0x7ffd4437c1c0) at ../../../../../jhbuild/checkout/glib/gobject/gsignal.c:3960 #28 0x00007fa9a72b2321 in signal_emit_valist_unlocked (instance=instance@entry=0x560f35c1cc50, signal_id=signal_id@entry=10, detail=detail@entry=0, var_args=var_args@entry=0x7ffd4437c3f0) at ../../../../../jhbuild/checkout/glib/gobject/gsignal.c:3532 #29 0x00007fa9a72b8816 in g_signal_emit_valist (instance=0x560f35c1cc50, signal_id=10, detail=0, var_args=0x7ffd4437c3f0) at ../../../../../jhbuild/checkout/glib/gobject/gsignal.c:3262 #30 0x00007fa9a72b88d3 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../../../../../jhbuild/checkout/glib/gobject/gsignal.c:3582 #31 0x00007fa9a02d02fa in wpe_view_event () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #32 0x0000560f1c615332 in WTR::EventSenderProxyClientWPE::rawKeyDown(OpaqueWKString const*, unsigned int, unsigned int) () #33 0x0000560f1c5f1ba0 in WTR::TestController::didReceiveSynchronousMessageFromInjectedBundle(OpaqueWKString const*, void const*, OpaqueWKMessageListener const*) () #34 0x00007fa9a0ae8194 in WebKit::WebPageInjectedBundleClient::didReceiveSynchronousMessageFromInjectedBundle(WebKit::WebPageProxy*, WTF::String const&, API::Object*, WTF::CompletionHandler<void (WTF::RefPtr<API::Object, WTF::RawPtrTraits<API::Object>, WTF::DefaultRefDerefTraits<API::Object> >)>&&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #35 0x00007fa9a0aee1b7 in WebKit::WebPageProxy::handleSynchronousMessage(IPC::Connection&, WTF::String const&, WebKit::UserData const&, WTF::CompletionHandler<void (WebKit::UserData&&)>&&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #36 0x00007fa9a046025d in void IPC::handleMessageSynchronous<Messages::WebPageProxy::HandleSynchronousMessage, WebKit::WebPageProxy, WebKit::WebPageProxy, void (IPC::Connection&, WTF::String const&, WebKit::UserData const&, WTF::CompletionHandler<void (WebKit::UserData&&)>&&)>(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&, WebKit::WebPageProxy*, void (WebKit::WebPageProxy::*)(IPC::Connection&, WTF::String const&, WebKit::UserData const&, WTF::CompletionHandler<void (WebKit::UserData&&)>&&)) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #37 0x00007fa9a046b48b in WebKit::WebPageProxy::didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #38 0x00007fa9a09d09d4 in IPC::MessageReceiverMap::dispatchSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #39 0x00007fa9a0b78250 in WebKit::WebProcessProxy::dispatchSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #40 0x00007fa9a048760c in WebKit::WebProcessProxy::didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, WTF::UniqueRef<IPC::Encoder>&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #41 0x00007fa9a09c8df0 in IPC::Connection::dispatchSyncMessage(IPC::Decoder&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #42 0x00007fa9a09c90ed in IPC::Connection::dispatchMessage(WTF::UniqueRef<IPC::Decoder>) [clone .part.0] () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #43 0x00007fa9a09ca500 in IPC::Connection::SyncMessageState::dispatchMessagesAndResetDidScheduleDispatchMessagesForConnection(IPC::Connection&) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #44 0x00007fa9a09ca9dd in WTF::Detail::CallableWrapper<IPC::Connection::SyncMessageState::processIncomingMessage(IPC::Connection&, WTF::UniqueRef<IPC::Decoder>&)::{lambda()#1}, void>::call() () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #45 0x00007fa9a2eec2a9 in WTF::RunLoop::performWork() () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #46 0x00007fa9a2fd3b0d in WTF::RunLoop::RunLoop()::{lambda(void*)#1}::_FUN(void*) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #47 0x00007fa9a2fd75ad in WTF::RunLoop::{lambda(_GSource*, int (*)(void*), void*)#1}::_FUN(_GSource*, int (*)(void*), void*) () from /sdk/webkit/WebKitBuild/WPE/Release/lib/libWPEWebKit-2.0.so.1 #48 0x00007fa9a73bff7f in g_main_dispatch (context=context@entry=0x560f35b40e20) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:3357 #49 0x00007fa9a73c208f in g_main_context_dispatch_unlocked (context=0x560f35b40e20) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:4208 #50 g_main_context_iterate_unlocked (context=context@entry=0x560f35b40e20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:4273 #51 0x00007fa9a73c27a0 in g_main_context_iteration (context=0x560f35b40e20, may_block=1) at ../../../../../jhbuild/checkout/glib/glib/gmain.c:4338 #52 0x0000560f1c615e7d in WTR::TestController::platformRunUntil(bool&, WTF::Seconds) () #53 0x0000560f1c5fc0e4 in WTR::TestInvocation::invoke() () #54 0x0000560f1c5ec66f in WTR::TestController::runTest(char const*) () #55 0x0000560f1c5eca9d in WTR::TestController::runTestingServerLoop() () #56 0x0000560f1c5ed216 in WTR::TestController::TestController(int, char const**) () #57 0x0000560f1c617bb6 in main ()
Fujii Hironori
Comment 3 2026-04-19 18:12:42 PDT
Although crash has happened after 309896@main, This is a regression of 306624@main. 309428@main added the test case.
Fujii Hironori
Comment 4 2026-04-19 18:28:18 PDT
Pull request: https://github.com/WebKit/WebKit/pull/63085
EWS
Comment 5 2026-04-20 00:48:49 PDT
Committed 311564@main (5a7b2c171b5d): <https://commits.webkit.org/311564@main> Reviewed commits have been landed. Closing PR #63085 and removing active labels.
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