1490846 - Crash in mozilla::dom::ipc::WritableSharedMap::WritableSharedMap

Status: RESOLVED WONTFIX

(Core :: IPC, defect)

Description

[Marcia Knous [:marcia]]

This bug was filed from the Socorro interface and is
report bp-c1855e2a-c5e6-4207-838d-80e580180912.
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Seen while looking at beta 63 crash stats: https://bit.ly/2p4cjyl. Crashes started in Fennec b3 and have continued into b5 in low volume. Top crashing device is SM-J700M, which is the Samsung Galaxy J7.

Moz Crash reason -> MOZ_RELEASE_ASSERT(mMap.initialized()) - that seems to have been added in Bug 1463587. ni on :kmag

Top 10 frames of crashing thread:

0 libxul.so mozilla::dom::ipc::WritableSharedMap::WritableSharedMap dom/ipc/SharedMap.cpp:280
1 libxul.so mozilla::dom::ParentProcessMessageManager_Binding::get_initialProcessData dom/bindings/MessageManagerBinding.cpp
2 libxul.so nsFrameMessageManager::SharedData dom/base/nsFrameMessageManager.cpp:1037
3 libxul.so mozilla::dom::ParentProcessMessageManager_Binding::get_initialProcessData dom/bindings/MessageManagerBinding.cpp
4 libxul.so mozilla::dom::ParentProcessMessageManager_Binding::get_sharedData dom/bindings/MessageManagerBinding.cpp:5232
5 libxul.so bool mozilla::dom::binding_detail::GenericGetter<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions> dom/bindings/BindingUtils.cpp:3172
6 libxul.so mozilla::binding_danger::TErrorResult<mozilla::binding_danger::ThreadSafeJustSuppressCleanupPolicy>::MaybeSetPendingException dom/bindings/ErrorResult.h
7 libxul.so mbrtoc32 
8 libxul.so js::InternalCallOrConstruct js/src/vm/Interpreter.cpp:449
9 libxul.so js::CallGetter js/src/vm/Interpreter.cpp:588

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Comment 1

[Kris Maglione [:kmag]]

These are essentially OOM crashes. There's nothing we can do about them.