Bug: Intermittent [tier 2] browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | uncaught exception - NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListe
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-10-06 07:42:59+00:00
Resolved: 2023-06-02 12:00:56+00:00

**Filed by:** ctuns [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=353820572&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/D0lGvgR5Q_i1NAvgXsvcLg/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-10-06T06:45:38.561Z] 06:45:38     INFO - TEST-PASS | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | Check that privileged pages are in the same privileged mozilla content process. - 
[task 2021-10-06T06:45:38.561Z] 06:45:38     INFO - Leaving test bound webpages_in_privileged_content_process
[task 2021-10-06T06:45:38.562Z] 06:45:38     INFO - Entering test bound process_switching_through_loading_in_the_same_tab
[task 2021-10-06T06:45:38.562Z] 06:45:38     INFO - Buffered messages finished
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | uncaught exception - NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListener] at updateBrowserRemoteness@chrome://browser/content/tabbrowser.js:1901:28
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - onBackgroundBrowserCrash@resource:///modules/ContentCrashHandlers.jsm:300:14
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - onTabCrashed@chrome://browser/content/tabbrowser.js:5823:27
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - get loadContext@chrome://global/content/elements/browser-custom-element.js:386:7
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - construct@chrome://global/content/elements/browser-custom-element.js:983:1
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:324:12
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2329:24
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - addTab@chrome://browser/content/tabbrowser.js:2811:16
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - addTab@resource://testing-common/BrowserTestUtils.jsm:2453:23
[task 2021-10-06T06:45:38.565Z] 06:45:38     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.jsm:250:61
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - switchTab@resource://testing-common/BrowserTestUtils.jsm:388:7
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.jsm:245:26
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:146:38
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - process_switching_through_loading_in_the_same_tab@chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:74:26
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1091:34
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - 
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - Stack trace:
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:simpletestOnerror:1957
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - chrome://global/content/elements/browser-custom-element.js:get loadContext:386
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - chrome://global/content/elements/browser-custom-element.js:construct:983
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - chrome://global/content/elements/browser-custom-element.js:connectedCallback:324
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - chrome://browser/content/tabbrowser.js:_insertBrowser:2329
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - chrome://browser/content/tabbrowser.js:addTab:2811
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:addTab:2453
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:openNewForegroundTab/promises<:250
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:switchTab:388
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:openNewForegroundTab:245
[task 2021-10-06T06:45:38.566Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:withNewTab:146
[task 2021-10-06T06:45:38.567Z] 06:45:38     INFO - chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:process_switching_through_loading_in_the_same_tab:74
[task 2021-10-06T06:45:38.567Z] 06:45:38     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1091
[task 2021-10-06T06:45:38.567Z] 06:45:38     INFO - GECKO(3393) | JavaScript error: chrome://browser/content/tabbrowser.js, line 1901: NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListener]
[task 2021-10-06T06:45:38.568Z] 06:45:38     INFO - GECKO(3393) | [Parent 3393, Main Thread] ###!!! ASSERTION: Couldn't create child process.: 'Error', file /builds/worker/checkouts/gecko/dom/base/nsFrameLoader.cpp:1107
[task 2021-10-06T06:45:38.568Z] 06:45:38     INFO - GECKO(3393) | #01: NS_DebugBreak [xpcom/base/nsDebugImpl.cpp:431]
[task 2021-10-06T06:45:38.568Z] 06:45:38     INFO - GECKO(3393) | #02: nsFrameLoader::ShowRemoteFrame(mozilla::gfx::IntSizeTyped<mozilla::ScreenPixel> const&, nsSubDocumentFrame*) [dom/base/nsFrameLoader.cpp:1107]
[task 2021-10-06T06:45:38.569Z] 06:45:38     INFO - GECKO(3393) | #03: nsFrameLoader::Show(nsSubDocumentFrame*) [dom/base/nsFrameLoader.cpp:983]
[task 2021-10-06T06:45:38.569Z] 06:45:38     INFO - GECKO(3393) | #04: nsSubDocumentFrame::ShowViewer() [layout/generic/nsSubDocumentFrame.cpp:196]
[task 2021-10-06T06:45:38.570Z] 06:45:38     INFO - GECKO(3393) | #05: AsyncFrameInit::Run() [layout/generic/nsSubDocumentFrame.cpp:98]
[task 2021-10-06T06:45:38.570Z] 06:45:38     INFO - GECKO(3393) | #06: nsContentUtils::RemoveScriptBlocker() [dom/base/nsContentUtils.cpp:5693]
[task 2021-10-06T06:45:38.570Z] 06:45:38     INFO - GECKO(3393) | #07: mozilla::PresShell::DoFlushPendingNotifications(mozilla::ChangesToFlush) [layout/base/PresShell.cpp:4229]
[task 2021-10-06T06:45:38.571Z] 06:45:38     INFO - GECKO(3393) | #08: mozilla::dom::Document::FlushPendingNotifications(mozilla::ChangesToFlush) [dom/base/Document.cpp:10749]
[task 2021-10-06T06:45:38.571Z] 06:45:38     INFO - GECKO(3393) | #09: nsFrameLoader::TryRemoteBrowserInternal() [dom/base/nsFrameLoader.cpp:2594]
[task 2021-10-06T06:45:38.572Z] 06:45:38     INFO - GECKO(3393) | #10: nsFrameLoader::EnsureRemoteBrowser() [dom/base/nsFrameLoader.cpp:2560]
[task 2021-10-06T06:45:38.572Z] 06:45:38     INFO - GECKO(3393) | #11: nsFrameLoader::GetBrowsingContext() [dom/base/nsFrameLoader.cpp:3515]
[task 2021-10-06T06:45:38.572Z] 06:45:38     INFO - GECKO(3393) | #12: nsFrameLoader::LoadContext() [dom/base/nsFrameLoader.cpp:3504]
[task 2021-10-06T06:45:38.573Z] 06:45:38     INFO - GECKO(3393) | #13: mozilla::dom::FrameLoader_Binding::get_loadContext(JSContext*, JS::Handle<JSObject*>, void*, JSJitGetterCallArgs) [s3:gecko-generated-sources:d844d6ec6daac2d0b2383d62068b80213896fa88f6c2ed252e7f23df106b2504a5e94fe8c7896dd4e279749afc70cc45556e7b92c040c40cd51ae1ee650e13b5/dom/bindings/FrameLoaderBinding.cpp::337]
[task 2021-10-06T06:45:38.573Z] 06:45:38     INFO - GECKO(3393) | [Parent 3393, Main Thread] WARNING: No build ID mismatch: file /builds/worker/checkouts/gecko/dom/base/nsFrameLoader.cpp:3827
[task 2021-10-06T06:45:38.574Z] 06:45:38     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | uncaught exception - NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListener] at updateBrowserRemoteness@chrome://browser/content/tabbrowser.js:1901:28
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - onBackgroundBrowserCrash@resource:///modules/ContentCrashHandlers.jsm:300:14
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - onTabCrashed@chrome://browser/content/tabbrowser.js:5823:27
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - get loadContext@chrome://global/content/elements/browser-custom-element.js:386:7
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - construct@chrome://global/content/elements/browser-custom-element.js:983:1
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:324:12
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2329:24
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - addTab@chrome://browser/content/tabbrowser.js:2811:16
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - addTab@resource://testing-common/BrowserTestUtils.jsm:2453:23
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.jsm:250:61
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - switchTab@resource://testing-common/BrowserTestUtils.jsm:388:7
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.jsm:245:26
[task 2021-10-06T06:45:38.576Z] 06:45:38     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:146:38
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - process_switching_through_loading_in_the_same_tab@chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:74:26
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1091:34
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - 
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - Stack trace:
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:simpletestOnerror:1957
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://global/content/elements/browser-custom-element.js:get loadContext:386
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://global/content/elements/browser-custom-element.js:construct:983
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://global/content/elements/browser-custom-element.js:connectedCallback:324
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://browser/content/tabbrowser.js:_insertBrowser:2329
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://browser/content/tabbrowser.js:addTab:2811
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:addTab:2453
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:openNewForegroundTab/promises<:250
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:switchTab:388
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:openNewForegroundTab:245
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - resource://testing-common/BrowserTestUtils.jsm:withNewTab:146
[task 2021-10-06T06:45:38.577Z] 06:45:38     INFO - chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:process_switching_through_loading_in_the_same_tab:74
[task 2021-10-06T06:45:38.578Z] 06:45:38     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1091
[task 2021-10-06T06:45:38.578Z] 06:45:38     INFO - GECKO(3393) | JavaScript error: chrome://browser/content/tabbrowser.js, line 1901: NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListener]
[task 2021-10-06T06:45:38.578Z] 06:45:38     INFO - GECKO(3393) | [Parent 3393, Main Thread] ###!!! ASSERTION: failed to launch child in the parent: 'Error', file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:2568
[task 2021-10-06T06:45:38.579Z] 06:45:38     INFO - GECKO(3393) | #01: NS_DebugBreak [xpcom/base/nsDebugImpl.cpp:431]
[task 2021-10-06T06:45:38.579Z] 06:45:38     INFO - GECKO(3393) | #02: mozilla::dom::ContentParent::LaunchSubprocessReject() [dom/ipc/ContentParent.cpp:2569]
[task 2021-10-06T06:45:38.580Z] 06:45:38     INFO - GECKO(3393) | #03: mozilla::dom::ContentParent::LaunchSubprocessAsync(mozilla::hal::ProcessPriority)::$_18::operator()(mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ResolveOrRejectValue const&) const [dom/ipc/ContentParent.cpp:2723]
[task 2021-10-06T06:45:38.580Z] 06:45:38     INFO - GECKO(3393) | #04: mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ThenValue<mozilla::dom::ContentParent::LaunchSubprocessAsync(mozilla::hal::ProcessPriority)::$_18>::DoResolveOrRejectInternal(mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ResolveOrRejectValue&) [xpcom/threads/MozPromise.h:914]
[task 2021-10-06T06:45:38.581Z] 06:45:38     INFO - GECKO(3393) | #05: mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ThenValueBase::ResolveOrRejectRunnable::Run() [xpcom/threads/MozPromise.h:488]
[task 2021-10-06T06:45:38.581Z] 06:45:38     INFO - GECKO(3393) | #06: mozilla::RunnableTask::Run() [xpcom/threads/TaskController.cpp:468]
[task 2021-10-06T06:45:38.582Z] 06:45:38     INFO - GECKO(3393) | #07: mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [xpcom/threads/TaskController.cpp:770]
[task 2021-10-06T06:45:38.582Z] 06:45:38     INFO - GECKO(3393) | #08: mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [xpcom/threads/TaskController.cpp:606]
[task 2021-10-06T06:45:38.582Z] 06:45:38     INFO - GECKO(3393) | #09: mozilla::TaskController::ProcessPendingMTTask(bool) [xpcom/threads/TaskController.cpp:390]
[task 2021-10-06T06:45:38.583Z] 06:45:38     INFO - GECKO(3393) | #10: mozilla::detail::RunnableFunction<mozilla::TaskController::InitializeInternal()::$_1>::Run() [xpcom/threads/nsThreadUtils.h:532]
[task 2021-10-06T06:45:38.583Z] 06:45:38     INFO - GECKO(3393) | #11: nsThread::ProcessNextEvent(bool, bool*) [xpcom/threads/nsThread.cpp:1152]
[task 2021-10-06T06:45:38.584Z] 06:45:38     INFO - GECKO(3393) | #12: nsThread::Shutdown() [xpcom/threads/nsThread.cpp:840]
[task 2021-10-06T06:45:38.584Z] 06:45:38     INFO - GECKO(3393) | #13: nsThreadPool::Shutdown() [xpcom/threads/nsThreadPool.cpp:403]
[task 2021-10-06T06:45:38.585Z] 06:45:38     INFO - GECKO(3393) | #14: {virtual override thunk({offset(-40)}, nsThreadPool::Shutdown())} [/opt/worker/tasks/task_163349877500340/build/application/Firefox NightlyDebug.app/Contents/MacOS/XUL + 0x1b023d]
[task 2021-10-06T06:45:38.585Z] 06:45:38     INFO - GECKO(3393) | #15: mozilla::detail::RunnableMethodImpl<nsCOMPtr<nsIThreadPool>, nsresult (nsIThreadPool::*)(), true, (mozilla::RunnableKind)0, >::Run() [xpcom/threads/nsThreadUtils.h:1203]
[task 2021-10-06T06:45:38.585Z] 06:45:38     INFO - GECKO(3393) | #16: mozilla::RunnableTask::Run() [xpcom/threads/TaskController.cpp:468]
[task 2021-10-06T06:45:38.586Z] 06:45:38     INFO - GECKO(3393) | #17: mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [xpcom/threads/TaskController.cpp:770]
[task 2021-10-06T06:45:38.586Z] 06:45:38     INFO - GECKO(3393) | #18: mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [xpcom/threads/TaskController.cpp:606]
[task 2021-10-06T06:45:38.587Z] 06:45:38     INFO - GECKO(3393) | #19: mozilla::TaskController::ProcessPendingMTTask(bool) [xpcom/threads/TaskController.cpp:390]
[task 2021-10-06T06:45:38.587Z] 06:45:38     INFO - GECKO(3393) | #20: mozilla::detail::RunnableFunction<mozilla::TaskController::InitializeInternal()::$_0>::Run() [xpcom/threads/nsThreadUtils.h:532]
[task 2021-10-06T06:45:38.587Z] 06:45:38     INFO - GECKO(3393) | #21: nsThread::ProcessNextEvent(bool, bool*) [xpcom/threads/nsThread.cpp:1152]
[task 2021-10-06T06:45:38.588Z] 06:45:38     INFO - GECKO(3393) | #22: NS_ProcessPendingEvents(nsIThread*, unsigned int) [xpcom/threads/nsThreadUtils.cpp:432]
[task 2021-10-06T06:45:38.588Z] 06:45:38     INFO - GECKO(3393) | #23: nsBaseAppShell::NativeEventCallback() [widget/nsBaseAppShell.cpp:88]
[task 2021-10-06T06:45:38.589Z] 06:45:38     INFO - GECKO(3393) | #24: nsAppShell::ProcessGeckoEvents(void*) [widget/cocoa/nsAppShell.mm:502]
[task 2021-10-06T06:45:38.606Z] 06:45:38     INFO - GECKO(3393) | #25: __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ [/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation + 0x847e2]
[task 2021-10-06T06:45:38.607Z] 06:45:38     INFO - GECKO(3393) | #26: __CFRunLoopDoSource0 [/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation + 0x84781]
[task 2021-10-06T06:45:38.607Z] 06:45:38     INFO - GECKO(3393) | #27: __CFRunLoopDoSources0 [/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation + 0x8459b]
[task 2021-10-06T06:45:38.608Z] 06:45:38     INFO - GECKO(3393) | #28: __CFRunLoopRun [/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation + 0x832ca]
[task 2021-10-06T06:45:38.608Z] 06:45:38     INFO - GECKO(3393) | #29: CFRunLoopRunSpecific [/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation + 0x828ce]
[task 2021-10-06T06:45:38.626Z] 06:45:38     INFO - GECKO(3393) | #30: RunCurrentEventLoopInMode [/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox + 0x2fabd]
[task 2021-10-06T06:45:38.626Z] 06:45:38     INFO - GECKO(3393) | #31: ReceiveNextEventCommon [/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox + 0x2f7d5]
[task 2021-10-06T06:45:38.626Z] 06:45:38     INFO - GECKO(3393) | #32: _BlockUntilNextEventMatchingListInModeWithFilter [/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox + 0x2f579]
[task 2021-10-06T06:45:38.706Z] 06:45:38     INFO - GECKO(3393) | #33: _DPSNextEvent [/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit + 0x41739]
[task 2021-10-06T06:45:38.707Z] 06:45:38     INFO - GECKO(3393) | #34: -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] [/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit + 0x3ff80]
[task 2021-10-06T06:45:38.707Z] 06:45:38     INFO - GECKO(3393) | #35: -[GeckoNSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] [widget/cocoa/nsAppShell.mm:173]
[task 2021-10-06T06:45:38.708Z] 06:45:38     INFO - GECKO(3393) | #36: -[NSApplication run] [/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit + 0x31c8e]
[task 2021-10-06T06:45:38.708Z] 06:45:38     INFO - GECKO(3393) | #37: nsAppShell::Run() [widget/cocoa/nsAppShell.mm:775]
[task 2021-10-06T06:45:38.708Z] 06:45:38     INFO - GECKO(3393) | #38: nsAppStartup::Run() [toolkit/components/startup/nsAppStartup.cpp:296]
[task 2021-10-06T06:45:38.709Z] 06:45:38     INFO - GECKO(3393) | #39: XREMain::XRE_mainRun() [toolkit/xre/nsAppRunner.cpp:5292]
[task 2021-10-06T06:45:38.709Z] 06:45:38     INFO - GECKO(3393) | #40: XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) [toolkit/xre/nsAppRunner.cpp:5477]
[task 2021-10-06T06:45:38.709Z] 06:45:38     INFO - GECKO(3393) | #41: XRE_main(int, char**, mozilla::BootstrapConfig const&) [toolkit/xre/nsAppRunner.cpp:5536]
[task 2021-10-06T06:45:38.710Z] 06:45:38     INFO - GECKO(3393) | #42: main [browser/app/nsBrowserApp.cpp:392]
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - Console message: [JavaScript Error: "remote browser crashed while on about:blank
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - " {file: "chrome://mochikit/content/mochitest-e10s-utils.js" line: 10}]
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - e10s_init/<@chrome://mochikit/content/mochitest-e10s-utils.js:10:10
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - get loadContext@chrome://global/content/elements/browser-custom-element.js:386:7
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - construct@chrome://global/content/elements/browser-custom-element.js:983:1
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:324:12
[task 2021-10-06T06:45:38.711Z] 06:45:38     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2329:24
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - addTab@chrome://browser/content/tabbrowser.js:2811:16
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - addTab@resource://testing-common/BrowserTestUtils.jsm:2453:23
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.jsm:250:61
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - switchTab@resource://testing-common/BrowserTestUtils.jsm:388:7
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.jsm:245:26
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:146:38
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - process_switching_through_loading_in_the_same_tab@chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:74:26
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1091:34
[task 2021-10-06T06:45:38.712Z] 06:45:38     INFO - 
[task 2021-10-06T06:45:38.713Z] 06:45:38     INFO - Console message: [JavaScript Error: "NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListener]" {file: "chrome://browser/content/tabbrowser.js" line: 1901}]
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - updateBrowserRemoteness@chrome://browser/content/tabbrowser.js:1901:28
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - onBackgroundBrowserCrash@resource:///modules/ContentCrashHandlers.jsm:300:14
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - onTabCrashed@chrome://browser/content/tabbrowser.js:5823:27
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - get loadContext@chrome://global/content/elements/browser-custom-element.js:386:7
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - construct@chrome://global/content/elements/browser-custom-element.js:983:1
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:324:12
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2329:24
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - addTab@chrome://browser/content/tabbrowser.js:2811:16
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - addTab@resource://testing-common/BrowserTestUtils.jsm:2453:23
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.jsm:250:61
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - switchTab@resource://testing-common/BrowserTestUtils.jsm:388:7
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.jsm:245:26
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:146:38
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - process_switching_through_loading_in_the_same_tab@chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:74:26
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1091:34
[task 2021-10-06T06:45:38.714Z] 06:45:38     INFO - 
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - Console message: [JavaScript Error: "remote browser crashed while on about:blank
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - " {file: "chrome://mochikit/content/mochitest-e10s-utils.js" line: 10}]
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - e10s_init/<@chrome://mochikit/content/mochitest-e10s-utils.js:10:10
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - get loadContext@chrome://global/content/elements/browser-custom-element.js:386:7
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - construct@chrome://global/content/elements/browser-custom-element.js:983:1
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:324:12
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2329:24
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - addTab@chrome://browser/content/tabbrowser.js:2811:16
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - addTab@resource://testing-common/BrowserTestUtils.jsm:2453:23
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.jsm:250:61
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - switchTab@resource://testing-common/BrowserTestUtils.jsm:388:7
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.jsm:245:26
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:146:38
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - process_switching_through_loading_in_the_same_tab@chrome://mochitests/content/browser/browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js:74:26
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - Tester_execTest/<@chrome://mochikit/content/browser-test.js:1091:34
[task 2021-10-06T06:45:38.716Z] 06:45:38     INFO - 
[task 2021-10-06T06:45:38.718Z] 06:45:38     INFO - Console message: [JavaScript Error: "NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebProgress.removeProgressListener]" {file: "chrome://browser/content/tabbrowser.js" line: 1901}]
[task 2021-10-06T06:45:38.718Z] 06:45:38     INFO - updateBrowserRemoteness@chrome://browser/content/tabbrowser.js:1901:28
[task 2021-10-06T06:45:38.718Z] 06:45:38     INFO - onBackgroundBrowserCrash@resource:///modules/ContentCrashHandlers.jsm:300:14
[task 2021-10-06T06:45:38.718Z] 06:45:38     INFO - onTabCrashed@chrome://browser/content/tabbrowser.js:5823:27
[task 2021-10-06T06:45:38.718Z] 06:45:38     INFO - get loadContext@chrome://global/content/elements/browser-custom-element.js:386:7
<...>
[task 2021-10-06T06:45:38.741Z] 06:45:38     INFO - GECKO(3393) | [Child 3884, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-10-06T06:45:38.741Z] 06:45:38     INFO - GECKO(3393) | [Child 3884, Main Thread] WARNING: IPC message discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:527
[task 2021-10-06T06:45:38.742Z] 06:45:38     INFO - GECKO(3393) | [Child 3884, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4438
[task 2021-10-06T06:45:38.742Z] 06:45:38     INFO - GECKO(3393) | Assertion failure
[task 2021-10-06T06:45:38.742Z] 06:45:38     INFO - GECKO(3393) | assert@resource:///modules/AsyncTabSwitcher.jsm:499:36
[task 2021-10-06T06:45:38.743Z] 06:45:38     INFO - GECKO(3393) | finish@resource:///modules/AsyncTabSwitcher.jsm:331:10
[task 2021-10-06T06:45:38.743Z] 06:45:38     INFO - GECKO(3393) | postActions@resource:///modules/AsyncTabSwitcher.jsm:697:12
[task 2021-10-06T06:45:38.743Z] 06:45:38     INFO - GECKO(3393) | handleEvent@resource:///modules/AsyncTabSwitcher.jsm:1116:12
[task 2021-10-06T06:45:38.744Z] 06:45:38     INFO - GECKO(3393) | JavaScript error: resource:///modules/AsyncTabSwitcher.jsm, line 503: Error: Assertion failure
[task 2021-10-06T06:45:38.744Z] 06:45:38     INFO - Console message: [JavaScript Error: "Error: Assertion failure" {file: "resource:///modules/AsyncTabSwitcher.jsm" line: 503}]
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - assert@resource:///modules/AsyncTabSwitcher.jsm:503:15
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - finish@resource:///modules/AsyncTabSwitcher.jsm:331:10
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - postActions@resource:///modules/AsyncTabSwitcher.jsm:697:12
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - handleEvent@resource:///modules/AsyncTabSwitcher.jsm:1116:12
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - 
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - GECKO(3393) | Assertion failure
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - GECKO(3393) | assert@resource:///modules/AsyncTabSwitcher.jsm:499:36
[task 2021-10-06T06:45:38.745Z] 06:45:38     INFO - GECKO(3393) | finish@resource:///modules/AsyncTabSwitcher.jsm:331:10
[task 2021-10-06T06:45:38.746Z] 06:45:38     INFO - GECKO(3393) | postActions@resource:///modules/AsyncTabSwitcher.jsm:697:12
[task 2021-10-06T06:45:38.746Z] 06:45:38     INFO - GECKO(3393) | handleEvent@resource:///modules/AsyncTabSwitcher.jsm:1116:12
[task 2021-10-06T06:45:38.746Z] 06:45:38     INFO - GECKO(3393) | unloadNonRequiredTabs/this.unloadTimer<@resource:///modules/AsyncTabSwitcher.jsm:758:20
[task 2021-10-06T06:45:38.746Z] 06:45:38     INFO - GECKO(3393) | JavaScript error: resource:///modules/AsyncTabSwitcher.jsm, line 503: Error: Assertion failure
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - Console message: [JavaScript Error: "Error: Assertion failure" {file: "resource:///modules/AsyncTabSwitcher.jsm" line: 503}]
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - assert@resource:///modules/AsyncTabSwitcher.jsm:503:15
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - finish@resource:///modules/AsyncTabSwitcher.jsm:331:10
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - postActions@resource:///modules/AsyncTabSwitcher.jsm:697:12
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - handleEvent@resource:///modules/AsyncTabSwitcher.jsm:1116:12
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - unloadNonRequiredTabs/this.unloadTimer<@resource:///modules/AsyncTabSwitcher.jsm:758:20
[task 2021-10-06T06:45:38.747Z] 06:45:38     INFO - 
<...>
[task 2021-10-06T06:45:41.058Z] 06:45:41     INFO - GECKO(3393) | [Parent 3393: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (1335a3c00) [pid = 3393] [serial = 255] [outer = 0] [url = about:blank]
[task 2021-10-06T06:45:41.059Z] 06:45:41     INFO - GECKO(3393) | [Parent 3393: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (136232000) [pid = 3393] [serial = 257] [outer = 0] [url = about:blank]
[task 2021-10-06T06:45:45.527Z] 06:45:45     INFO - GECKO(3393) | Assertion failure
[task 2021-10-06T06:45:45.528Z] 06:45:45     INFO - GECKO(3393) | assert@resource:///modules/AsyncTabSwitcher.jsm:499:36
[task 2021-10-06T06:45:45.528Z] 06:45:45     INFO - GECKO(3393) | finish@resource:///modules/AsyncTabSwitcher.jsm:331:10
[task 2021-10-06T06:45:45.528Z] 06:45:45     INFO - GECKO(3393) | postActions@resource:///modules/AsyncTabSwitcher.jsm:697:12
[task 2021-10-06T06:45:45.529Z] 06:45:45     INFO - GECKO(3393) | handleEvent@resource:///modules/AsyncTabSwitcher.jsm:1116:12
[task 2021-10-06T06:45:45.529Z] 06:45:45     INFO - GECKO(3393) | JavaScript error: resource:///modules/AsyncTabSwitcher.jsm, line 503: Error: Assertion failure
[task 2021-10-06T06:45:45.530Z] 06:45:45     INFO - Console message: [JavaScript Error: "Error: Assertion failure" {file: "resource:///modules/AsyncTabSwitcher.jsm" line: 503}]
[task 2021-10-06T06:45:45.530Z] 06:45:45     INFO - assert@resource:///modules/AsyncTabSwitcher.jsm:503:15
[task 2021-10-06T06:45:45.530Z] 06:45:45     INFO - finish@resource:///modules/AsyncTabSwitcher.jsm:331:10
[task 2021-10-06T06:45:45.530Z] 06:45:45     INFO - postActions@resource:///modules/AsyncTabSwitcher.jsm:697:12
[task 2021-10-06T06:45:45.530Z] 06:45:45     INFO - handleEvent@resource:///modules/AsyncTabSwitcher.jsm:1116:12
[task 2021-10-06T06:45:45.530Z] 06:45:45     INFO - 
[task 2021-10-06T06:46:54.185Z] 06:46:54     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-10-06T06:46:54.185Z] 06:46:54     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | Test timed out - 
[task 2021-10-06T06:46:54.192Z] 06:46:54     INFO - TEST-FAIL | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | Assertion count 3 is greater than expected range 0-0 assertions. - 
[task 2021-10-06T06:46:54.192Z] 06:46:54     INFO - GECKO(3393) | MEMORY STAT | vsize 16617MB | residentFast 604MB | heapAllocated 146MB
[task 2021-10-06T06:46:54.193Z] 06:46:54     INFO - TEST-OK | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | took 90256ms
[task 2021-10-06T06:46:54.194Z] 06:46:54     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-10-06T06:46:54.194Z] 06:46:54     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_privilegedmozilla_process_pref.js | Found a tab after previous test timed out: about:blank - 
[task 2021-10-06T06:46:54.231Z] 06:46:54     INFO - GECKO(3393) | [Child 3886: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 11a415000 == 1 [pid = 3886] [id = 0]
[task 2021-10-06T06:46:54.231Z] 06:46:54     INFO - GECKO(3393) | [Child 3886: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 1 (1110adac0) [pid = 3886] [serial = 1] [outer = 0]
[task 2021-10-06T06:46:54.232Z] 06:46:54     INFO - GECKO(3393) | [Child 3886: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 2 (119f5d400) [pid = 3886] [serial = 2] [outer = 1110adac0]
[task 2021-10-06T06:46:54.257Z] 06:46:54     INFO - checking window state
[task 2021-10-06T06:46:54.281Z] 06:46:54     INFO - TEST-START | browser/base/content/test/tabs/browser_progress_keyword_search_handling.js
```