284812 2024-12-17 06:19:07 -0800 [GTK Debug] A few API tests times out with assertion error "ASSERTION FAILED: !didReceiveInvalidMessage" 2024-12-20 01:07:36 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 1 zsun zsun csaavedra fujii kkinnunen zsun oldest_to_newest 2082309 0 zsun 2024-12-17 06:19:07 -0800 ASSERTION FAILED: !didReceiveInvalidMessage /app/webkit/Source/WebKit/Platform/IPC/Connection.cpp(1454) : void IPC::Connection::dispatchMessage(WTF::UniqueRef<IPC::Decoder>) Affected tests - /webkit/WebKitWebView/sync-request-on-max-conns /webkit/WebKitWebView/stop-loading /webkit/WebKitWebProcessExtension/user-messages /webkit/WebKitWebView/run-async-js-functions /webkit/WebKitWebView/navigation-after-session-restore /webkit/WebKitWebsiteData/storage /webkit/WebKitWebView/stop-loading /webkit/WebKitConsoleMessage/security-error /webkit/WebKitFrame/uri /webkit/WebKitFrame/javascript-values example bots output: https://build.webkit.org/#/builders/63/builds/15096 2082617 1 kkinnunen 2024-12-18 01:41:01 -0800 Idea of the assertion is that it makes no sense that one would receive an invalid message. This is a programming error. Typically it is caused by sending a message to a receiver that does not exist at the time of the receipt, which does not typically make sense. Code should be typically organized so that the sender is the one removing the target endpoint. 2082621 2 zsun 2024-12-18 02:07:59 -0800 This issue might be related - https://bugs.webkit.org/show_bug.cgi?id=265994 The tricky part I found is that the sender is not aware that the receiver has been removed (via removeWorkQueueMessageReceiver). In the case we describe in bug 265994, any suggestions that we could inform the sender that the receiver does not exist any more? Thank you! 2082623 3 zsun 2024-12-18 02:16:00 -0800 Pull request: https://github.com/WebKit/WebKit/pull/38129 2082657 4 zsun 2024-12-18 06:28:59 -0800 Also happens to - /webkit/WebKitWebContext/languages /webkit/WebKitPolicyClient/new-window-policy 2083257 5 ews-feeder 2024-12-20 01:07:36 -0800 Test gardening commit 288155@main (146fa28a329d): <https://commits.webkit.org/288155@main> Reviewed commits have been landed. Closing PR #38129 and removing active labels.