1659713 - Assertion failure: mNotLost != nullptr, at /builds/worker/checkouts/gecko/dom/canvas/ClientWebGLContext.h:754

Status: NEW

(Core :: Graphics: CanvasWebGL, defect)

Description

[Jason Kratzer [:jkratzer]]

Attachment: testcase.html

Testcase found while fuzzing mozilla-central rev 1891b1e3fa34 (built with --enable-debug).

Assertion failure: mNotLost != nullptr, at /builds/worker/checkouts/gecko/dom/canvas/ClientWebGLContext.h:754

    #0 0x7f8f9f7c30ae in AnnotateMozCrashReason /builds/worker/workspace/obj-build/dist/include/mozilla/Assertions.h:42:19
    #1 0x7f8f9f7c30ae in ActualContextParameters /builds/worker/checkouts/gecko/dom/canvas/ClientWebGLContext.h:754:5
    #2 0x7f8f9f7c30ae in mozilla::dom::XRWebGLLayer::Antialias() /builds/worker/checkouts/gecko/dom/canvas/XRWebGLLayer.cpp:182:18
    #3 0x7f8f9f0825b9 in mozilla::dom::XRWebGLLayer_Binding::get_antialias(JSContext*, JS::Handle<JSObject*>, void*, JSJitGetterCallArgs) /builds/worker/workspace/obj-build/dom/bindings/WebXRBinding.cpp:9139:36
    #4 0x7f8f9f627276 in bool mozilla::dom::binding_detail::GenericGetter<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions>(JSContext*, unsigned int, JS::Value*) /builds/worker/checkouts/gecko/dom/bindings/BindingUtils.cpp:3109:13
    #5 0x7f8fa24c7961 in CallJSNative(JSContext*, bool (*)(JSContext*, unsigned int, JS::Value*), js::CallReason, JS::CallArgs const&) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:507:13
    #6 0x7f8fa24c70d2 in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:599:12
    #7 0x7f8fa24c8c9f in InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:664:10
    #8 0x7f8fa24c9c11 in js::CallGetter(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:681:8
    #9 0x7f8fa28398d4 in CallGetter /builds/worker/checkouts/gecko/js/src/vm/NativeObject.cpp:2287:12
    #10 0x7f8fa28398d4 in bool GetExistingProperty<(js::AllowGC)1>(JSContext*, js::MaybeRooted<JS::Value, (js::AllowGC)1>::HandleType, js::MaybeRooted<js::NativeObject*, (js::AllowGC)1>::HandleType, js::MaybeRooted<js::Shape*, (js::AllowGC)1>::HandleType, js::MaybeRooted<JS::Value, (js::AllowGC)1>::MutableHandleType) /builds/worker/checkouts/gecko/js/src/vm/NativeObject.cpp:2339:12
    #11 0x7f8fa283a621 in bool NativeGetPropertyInline<(js::AllowGC)1>(JSContext*, js::MaybeRooted<js::NativeObject*, (js::AllowGC)1>::HandleType, js::MaybeRooted<JS::Value, (js::AllowGC)1>::HandleType, js::MaybeRooted<JS::PropertyKey, (js::AllowGC)1>::HandleType, IsNameLookup, js::MaybeRooted<JS::Value, (js::AllowGC)1>::MutableHandleType) /builds/worker/checkouts/gecko/js/src/vm/NativeObject.cpp:2479:14
    #12 0x7f8fa24ce8cf in js::GetProperty(JSContext*, JS::Handle<JSObject*>, JS::Handle<JS::Value>, js::PropertyName*, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/ObjectOperations-inl.h:124:10
    #13 0x7f8fa24cdd3d in js::GetProperty(JSContext*, JS::Handle<JS::Value>, JS::Handle<js::PropertyName*>, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:4729:10
    #14 0x7f8fa24b9c92 in Interpret(JSContext*, js::RunState&) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:220:10
    #15 0x7f8fa24b2e93 in js::RunScript(JSContext*, js::RunState&) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:468:13
    #16 0x7f8fa24c708f in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:636:13
    #17 0x7f8fa24c8c9f in InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:664:10
    #18 0x7f8fa24c8e7f in js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:681:8
    #19 0x7f8fa28a8cd7 in js::CallSelfHostedFunction(JSContext*, JS::Handle<js::PropertyName*>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/SelfHosting.cpp:1683:10
    #20 0x7f8fa2668af9 in AsyncFunctionResume(JSContext*, JS::Handle<js::AsyncFunctionGeneratorObject*>, ResumeKind, JS::Handle<JS::Value>) /builds/worker/checkouts/gecko/js/src/vm/AsyncFunction.cpp:128:8
    #21 0x7f8fa2743d21 in PromiseReactionJob(JSContext*, unsigned int, JS::Value*) /builds/worker/checkouts/gecko/js/src/builtin/Promise.cpp:1696:12
    #22 0x7f8fa24c7961 in CallJSNative(JSContext*, bool (*)(JSContext*, unsigned int, JS::Value*), js::CallReason, JS::CallArgs const&) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:507:13
    #23 0x7f8fa24c70d2 in js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:599:12
    #24 0x7f8fa24c8c9f in InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:664:10
    #25 0x7f8fa24c8e7f in js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>, js::CallReason) /builds/worker/checkouts/gecko/js/src/vm/Interpreter.cpp:681:8
    #26 0x7f8fa25d8267 in JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) /builds/worker/checkouts/gecko/js/src/jsapi.cpp:2831:10
    #27 0x7f8f9e9938ba in mozilla::dom::PromiseJobCallback::Call(mozilla::dom::BindingCallContext&, JS::Handle<JS::Value>, mozilla::ErrorResult&) /builds/worker/workspace/obj-build/dom/bindings/PromiseBinding.cpp:28:8
    #28 0x7f8f9c2ae6bc in mozilla::dom::PromiseJobCallback::Call(mozilla::ErrorResult&, char const*, mozilla::dom::CallbackObject::ExceptionHandling, JS::Realm*) /builds/worker/workspace/obj-build/dist/include/mozilla/dom/PromiseBinding.h:91:12
    #29 0x7f8f9c2ad7b3 in Call /builds/worker/workspace/obj-build/dist/include/mozilla/dom/PromiseBinding.h:104:12
    #30 0x7f8f9c2ad7b3 in mozilla::PromiseJobRunnable::Run(mozilla::AutoSlowOperation&) /builds/worker/checkouts/gecko/xpcom/base/CycleCollectedJSContext.cpp:211:18
    #31 0x7f8f9c29be82 in mozilla::CycleCollectedJSContext::PerformMicroTaskCheckPoint(bool) /builds/worker/checkouts/gecko/xpcom/base/CycleCollectedJSContext.cpp:646:17
    #32 0x7f8f9f9d70ce in LeaveMicroTask /builds/worker/workspace/obj-build/dist/include/mozilla/CycleCollectedJSContext.h:232:7
    #33 0x7f8f9f9d70ce in ~nsAutoMicroTask /builds/worker/workspace/obj-build/dist/include/mozilla/CycleCollectedJSContext.h:382:13
    #34 0x7f8f9f9d70ce in mozilla::EventListenerManager::HandleEventSubType(mozilla::EventListenerManager::Listener*, mozilla::dom::Event*, mozilla::dom::EventTarget*) /builds/worker/checkouts/gecko/dom/events/EventListenerManager.cpp:1090:3
    #35 0x7f8f9f9d7d03 in mozilla::EventListenerManager::HandleEventInternal(nsPresContext*, mozilla::WidgetEvent*, mozilla::dom::Event**, mozilla::dom::EventTarget*, nsEventStatus*, bool) /builds/worker/checkouts/gecko/dom/events/EventListenerManager.cpp:1279:17
    #36 0x7f8f9f9cd6a4 in HandleEvent /builds/worker/workspace/obj-build/dist/include/mozilla/EventListenerManager.h:354:5
    #37 0x7f8f9f9cd6a4 in mozilla::EventTargetChainItem::HandleEvent(mozilla::EventChainPostVisitor&, mozilla::ELMCreationDetector&) /builds/worker/checkouts/gecko/dom/events/EventDispatcher.cpp:356:17
    #38 0x7f8f9f9ccc41 in mozilla::EventTargetChainItem::HandleEventTargetChain(nsTArray<mozilla::EventTargetChainItem>&, mozilla::EventChainPostVisitor&, mozilla::EventDispatchingCallback*, mozilla::ELMCreationDetector&) /builds/worker/checkouts/gecko/dom/events/EventDispatcher.cpp:558:16
    #39 0x7f8f9f9cf7f2 in mozilla::EventDispatcher::Dispatch(nsISupports*, nsPresContext*, mozilla::WidgetEvent*, mozilla::dom::Event*, nsEventStatus*, mozilla::EventDispatchingCallback*, nsTArray<mozilla::dom::EventTarget*>*) /builds/worker/checkouts/gecko/dom/events/EventDispatcher.cpp:1055:11
    #40 0x7f8fa0e89723 in nsDocumentViewer::LoadComplete(nsresult) /builds/worker/checkouts/gecko/layout/base/nsDocumentViewer.cpp:1092:7
    #41 0x7f8fa1e84750 in nsDocShell::EndPageLoad(nsIWebProgress*, nsIChannel*, nsresult) /builds/worker/checkouts/gecko/docshell/base/nsDocShell.cpp:6218:20
    #42 0x7f8fa1e8417b in nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) /builds/worker/checkouts/gecko/docshell/base/nsDocShell.cpp:5545:7
    #43 0x7f8fa1e8518f in non-virtual thunk to nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) /builds/worker/checkouts/gecko/docshell/base/nsDocShell.cpp
    #44 0x7f8f9d8de39c in nsDocLoader::DoFireOnStateChange(nsIWebProgress*, nsIRequest*, int&, nsresult) /builds/worker/checkouts/gecko/uriloader/base/nsDocLoader.cpp:1331:3
    #45 0x7f8f9d8ddbba in nsDocLoader::doStopDocumentLoad(nsIRequest*, nsresult) /builds/worker/checkouts/gecko/uriloader/base/nsDocLoader.cpp:937:14
    #46 0x7f8f9d8dbfa8 in nsDocLoader::DocLoaderIsEmpty(bool, mozilla::Maybe<nsresult> const&) /builds/worker/checkouts/gecko/uriloader/base/nsDocLoader.cpp:757:9
    #47 0x7f8f9d8dcfd8 in nsDocLoader::OnStopRequest(nsIRequest*, nsresult) /builds/worker/checkouts/gecko/uriloader/base/nsDocLoader.cpp:640:5
    #48 0x7f8f9d8dd82c in non-virtual thunk to nsDocLoader::OnStopRequest(nsIRequest*, nsresult) /builds/worker/checkouts/gecko/uriloader/base/nsDocLoader.cpp
    #49 0x7f8f9c512d36 in mozilla::net::nsLoadGroup::NotifyRemovalObservers(nsIRequest*, nsresult) /builds/worker/checkouts/gecko/netwerk/base/nsLoadGroup.cpp:615:22
    #50 0x7f8f9c514233 in mozilla::net::nsLoadGroup::RemoveRequest(nsIRequest*, nsISupports*, nsresult) /builds/worker/checkouts/gecko/netwerk/base/nsLoadGroup.cpp:522:10
    #51 0x7f8f9e2ad69f in mozilla::dom::Document::DoUnblockOnload() /builds/worker/checkouts/gecko/dom/base/Document.cpp:10825:18
    #52 0x7f8f9e28c640 in mozilla::dom::Document::UnblockOnload(bool) /builds/worker/checkouts/gecko/dom/base/Document.cpp:10755:9
    #53 0x7f8f9e29c618 in mozilla::dom::Document::DispatchContentLoadedEvents() /builds/worker/checkouts/gecko/dom/base/Document.cpp:7335:3
    #54 0x7f8f9e30c086 in applyImpl<mozilla::dom::Document, void (mozilla::dom::Document::*)()> /builds/worker/workspace/obj-build/dist/include/nsThreadUtils.h:1188:12
    #55 0x7f8f9e30c086 in apply<mozilla::dom::Document, void (mozilla::dom::Document::*)()> /builds/worker/workspace/obj-build/dist/include/nsThreadUtils.h:1194:12
    #56 0x7f8f9e30c086 in mozilla::detail::RunnableMethodImpl<mozilla::dom::Document*, void (mozilla::dom::Document::*)(), true, (mozilla::RunnableKind)0>::Run() /builds/worker/workspace/obj-build/dist/include/nsThreadUtils.h:1240:13
    #57 0x7f8f9c37e2c2 in mozilla::SchedulerGroup::Runnable::Run() /builds/worker/checkouts/gecko/xpcom/threads/SchedulerGroup.cpp:146:20
    #58 0x7f8f9c384124 in mozilla::RunnableTask::Run() /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:242:16
    #59 0x7f8f9c381eed in mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:512:26
    #60 0x7f8f9c380eb4 in mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:371:15
    #61 0x7f8f9c381067 in mozilla::TaskController::ProcessPendingMTTask(bool) /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:168:36
    #62 0x7f8f9c388c56 in operator() /builds/worker/checkouts/gecko/xpcom/threads/TaskController.cpp:83:37
    #63 0x7f8f9c388c56 in mozilla::detail::RunnableFunction<mozilla::TaskController::InitializeInternal()::$_4>::Run() /builds/worker/workspace/obj-build/dist/include/nsThreadUtils.h:577:5
    #64 0x7f8f9c39c0a8 in nsThread::ProcessNextEvent(bool, bool*) /builds/worker/checkouts/gecko/xpcom/threads/nsThread.cpp:1242:14
    #65 0x7f8f9c3a1a7a in NS_ProcessNextEvent(nsIThread*, bool) /builds/worker/checkouts/gecko/xpcom/threads/nsThreadUtils.cpp:513:10
    #66 0x7f8f9ccc07af in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) /builds/worker/checkouts/gecko/ipc/glue/MessagePump.cpp:87:21
    #67 0x7f8f9cc31043 in MessageLoop::RunInternal() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:334:10
    #68 0x7f8f9cc30f5d in RunHandler /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:327:3
    #69 0x7f8f9cc30f5d in MessageLoop::Run() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:309:3
    #70 0x7f8fa0b5de18 in nsBaseAppShell::Run() /builds/worker/checkouts/gecko/widget/nsBaseAppShell.cpp:137:27
    #71 0x7f8fa2385b03 in XRE_RunAppShell() /builds/worker/checkouts/gecko/toolkit/xre/nsEmbedFunctions.cpp:913:20
    #72 0x7f8f9ccc1577 in mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*) /builds/worker/checkouts/gecko/ipc/glue/MessagePump.cpp:237:9
    #73 0x7f8f9cc31043 in MessageLoop::RunInternal() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:334:10
    #74 0x7f8f9cc30f5d in RunHandler /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:327:3
    #75 0x7f8f9cc30f5d in MessageLoop::Run() /builds/worker/checkouts/gecko/ipc/chromium/src/base/message_loop.cc:309:3
    #76 0x7f8fa23856a2 in XRE_InitChildProcess(int, char**, XREChildData const*) /builds/worker/checkouts/gecko/toolkit/xre/nsEmbedFunctions.cpp:744:34
    #77 0x557de762409f in content_process_main /builds/worker/checkouts/gecko/browser/app/../../ipc/contentproc/plugin-container.cpp:56:28
    #78 0x557de762409f in main /builds/worker/checkouts/gecko/browser/app/nsBrowserApp.cpp:303:18
    #79 0x7f8fb7c63b96 in __libc_start_main /build/glibc-2ORdQG/glibc-2.27/csu/../csu/libc-start.c:310

Comment 1

[Jason Kratzer [:jkratzer]]

Bugmon Analysis:
Verified bug as reproducible on mozilla-central 20200818153308-c38fb352aacf.
The bug appears to have been introduced in the following build range:
> Start: 970bca14c57761d08345e428fbba0553bc6f603e (20200407191514)
> End: f377fb74e5c5ce6b42d350bbda9b7328802d5376 (20200407191618)
> Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=970bca14c57761d08345e428fbba0553bc6f603e&tochange=f377fb74e5c5ce6b42d350bbda9b7328802d5376

Comment 2

[Bugmon [:jkratzer for issues]]

Bugmon Analysis
Unable to reproduce bug 1659713 using build mozilla-central 20201205093858-7ce95b6cde26. Without a baseline, bugmon is unable to analyze this bug.
Removing bugmon keyword as no further action possible. Please review the bug and re-add the keyword for further analysis.

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

Setting regressed_by field after analyzing regression range found by bugmon.

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1614499

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1614499