1646437 - Crash in [@ mozilla::a11y::SessionAccessibility::SendScrollingEvent]

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect, P1)

Description

[Christian Sadilek [:csadilek]]

STRs in this Fenix ticket:
https://github.com/mozilla-mobile/fenix/issues/11696

This bug is for crash report bp-16dc8b06-1e7b-49f0-9b13-33b950200617.

Top 10 frames of crashing thread:

0 libxul.so mozilla::a11y::SessionAccessibility::SendScrollingEvent accessible/android/SessionAccessibility.cpp:217
1 libxul.so mozilla::a11y::DocAccessibleParent::RecvScrollingEvent accessible/ipc/DocAccessibleParent.cpp:442
2 libxul.so mozilla::a11y::PDocAccessibleParent::OnMessageReceived ipc/ipdl/PDocAccessibleParent.cpp
3 libxul.so mozilla::dom::PContentParent::OnMessageReceived ipc/ipdl/PContentParent.cpp:6276
4 libxul.so mozilla::ipc::MessageChannel::DispatchMessage ipc/glue/MessageChannel.cpp:2190
5 libxul.so mozilla::ipc::MessageChannel::MessageTask::Run ipc/glue/MessageChannel.cpp:1993
6 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1211
7 libxul.so NS_ProcessNextEvent xpcom/threads/nsThreadUtils.cpp:501
8 libxul.so mozilla::ipc::MessagePump::Run ipc/glue/MessagePump.cpp:87
9 libxul.so MessageLoop::Run ipc/chromium/src/base/message_loop.cc:290

Comment 1

[James Teh [:Jamie]]

Probably an event for a DocAccessibleParent which is dying. Should be fixed by part 2 of bug 1630208, which drops scrolling (and other) events for dying DocAccessibleParents.

Comment 2

[James Teh [:Jamie]]

Seems to be fixed by bug 1630208 as I suspected.