1560377 - Crash in [@ mozilla::dom::ContentChild::RecvWindowPostMessage]

Status: RESOLVED WORKSFORME

(Core :: DOM: Core & HTML, defect, P3)

Description

[Marcia Knous [:marcia]]

This bug is for crash report bp-09b707cd-f28a-4df9-96f6-6683d0190620.

Seen while looking at nightly crash stats - small volume crash which affects Windows and Mac so far: https://bit.ly/2N1UHSB. Crashes started in 20190619214046.

Moz crash reason: content (webIsolated=https://cbc.ca)

Top 10 frames of crashing thread:

0 xul.dll mozilla::dom::ContentChild::RecvWindowPostMessage dom/ipc/ContentChild.cpp:3994
1 xul.dll mozilla::dom::ContentChild::RecvWindowPostMessage dom/ipc/ContentChild.cpp:3992
2 xul.dll mozilla::dom::PContentChild::OnMessageReceived ipc/ipdl/PContentChild.cpp:12357
3 xul.dll void mozilla::ipc::MessageChannel::DispatchMessage ipc/glue/MessageChannel.cpp:2082
4 xul.dll nsresult mozilla::ipc::MessageChannel::MessageTask::Run ipc/glue/MessageChannel.cpp:1970
5 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1225
6 xul.dll NS_ProcessNextEvent xpcom/threads/nsThreadUtils.cpp:486
7 xul.dll void mozilla::ipc::MessagePump::Run ipc/glue/MessagePump.cpp:88
8 xul.dll MessageLoop::RunHandler ipc/chromium/src/base/message_loop.cc:308
9 xul.dll nsBaseAppShell::Run widget/nsBaseAppShell.cpp:137

Comment 1

[Neha Kochar [:neha]]

content (webIsolated=https://cbc.ca)
indicates it happened with fission enabled

Comment 2

[Neha Kochar [:neha]]

No reports after 6/27

Comment 3

[Andrew McCreight [:mccr8]]

Presumably fixed by one of the null check for post message bugs.