1749278 - Crash in [@ mozilla::widget::WinWindowOcclusionTracker::UpdateOcclusionState]

Status: RESOLVED DUPLICATE of bug 1741452

(Core :: Widget: Win32, defect)

Description

[Gabriele Svelto [:gsvelto]]

Crash report: https://crash-stats.mozilla.org/report/index/84b2dce3-0384-4ca3-8b1f-9745d0220110

Reason: EXCEPTION_ACCESS_VIOLATION_READ

Top 10 frames of crashing thread:

0 xul.dll mozilla::widget::WinWindowOcclusionTracker::UpdateOcclusionState widget/windows/WinWindowOcclusionTracker.cpp:626
1 xul.dll mozilla::detail::RunnableFunction<`lambda at /builds/worker/checkouts/gecko/widget/windows/WinWindowOcclusionTracker.cpp:968:35'>::Run xpcom/threads/nsThreadUtils.h:531
2 xul.dll mozilla::widget::SerializedTaskDispatcher::HandleTasks widget/windows/WinWindowOcclusionTracker.cpp:263
3 xul.dll mozilla::detail::runnable_args_base<mozilla::detail::NoResult>::Run dom/media/webrtc/transport/runnable_utils.h:41
4 xul.dll mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal xpcom/threads/TaskController.cpp:771
5 xul.dll mozilla::TaskController::ProcessPendingMTTask xpcom/threads/TaskController.cpp:391
6 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1195
7 xul.dll mozilla::ipc::MessagePump::Run ipc/glue/MessagePump.cpp:107
8 xul.dll MessageLoop::RunHandler ipc/chromium/src/base/message_loop.cc:324
9 xul.dll MessageLoop::Run ipc/chromium/src/base/message_loop.cc:306

At least one of these crashes appears to be stack corruption, but IIUC this code is pref'd off so these crashes must be coming from users who are deliberately enabling this code.

Comment 1

[Andrew McCreight [:mccr8]]

Is this a dupe of bug 1741452? Thanks.

Comment 2

[Sotaro Ikeda [:sotaro]]

(In reply to Andrew McCreight [:mccr8] from comment #1)

Is this a dupe of bug 1741452? Thanks.

Yes, it is dupe of bug 1741452.