1521477 - Crash in shutdownhang | mozilla::SpinEventLoopUntil<T> | mozilla::dom::StorageObserver::Observe

Status: NEW

(Core :: Storage: localStorage & sessionStorage, defect, P3)

Description

[Gabriele Svelto [:gsvelto] (PTO)]

This bug is for crash report bp-ecfd2f43-f171-4698-bcb7-10a430190120.

Top 10 frames of crashing thread:

0 ntdll.dll NtWaitForAlertByThreadId 
1 ntdll.dll RtlSleepConditionVariableSRW 
2 kernelbase.dll SleepConditionVariableSRW 
3 mozglue.dll mozilla::detail::ConditionVariableImpl::wait mozglue/misc/ConditionVariable_windows.cpp:50
4 xul.dll mozilla::ThreadEventQueue<mozilla::PrioritizedEventQueue<mozilla::EventQueue> >::GetEvent xpcom/threads/ThreadEventQueue.cpp:152
5 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1091
6 xul.dll NS_ProcessNextEvent xpcom/threads/nsThreadUtils.cpp:468
7 xul.dll static bool mozilla::SpinEventLoopUntil<mozilla::ProcessFailureBehavior::ReportToCaller, `lambda at z:/build/build/src/dom/storage/StorageObserver.cpp:409:7'> xpcom/threads/nsThreadUtils.h:335
8 xul.dll mozilla::dom::StorageObserver::Observe dom/storage/StorageObserver.cpp:409
9 xul.dll nsObserverService::NotifyObservers xpcom/ds/nsObserverService.cpp:286

This seems to have been around for a while but I couldn't find it on file.

Comment 2

[Jens Stutte [:jstutte]]

This seems to have a similar root cause as bug 1542485. Also here we spin the event loop instead of using shutdown blockers.

Comment 3

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

Since the crash volume is low (less than 5 per week), the severity is downgraded to S3. Feel free to change it back if you think the bug is still critical.

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