1686205 - Crash in [@ mozilla::ipc::FatalError | mozilla::dom::PContentChild::OnMessageReceived]

Status: RESOLVED DUPLICATE of bug 1664151

(Core :: Layout: Text and Fonts, defect)

Description

[Gabriele Svelto [:gsvelto] (PTO)]

Crash report: https://crash-stats.mozilla.org/report/index/449403e4-fdf5-4c32-be11-a25e90210109

MOZ_CRASH Reason: IPDL error: "Error deserializing 'SharedMemoryHandle[]'". abort()ing as a result.

Top 10 frames of crashing thread:

0 libxul.so mozilla::ipc::FatalError ipc/glue/ProtocolUtils.cpp:194
1 libxul.so mozilla::dom::PContentChild::OnMessageReceived ipc/ipdl/PContentChild.cpp:11398
2 libxul.so mozilla::ipc::MessageChannel::DispatchMessage ipc/glue/MessageChannel.cpp:2077
3 libxul.so mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal xpcom/threads/TaskController.cpp:739
4 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1200
5 libxul.so mozilla::ipc::MessagePump::Run ipc/glue/MessagePump.cpp:109
6 libxul.so MessageLoop::Run ipc/chromium/src/base/message_loop.cc:309
7 libxul.so nsBaseAppShell::Run widget/nsBaseAppShell.cpp:137
8 libxul.so XRE_RunAppShell toolkit/xre/nsEmbedFunctions.cpp:902
9 libxul.so MessageLoop::Run ipc/chromium/src/base/message_loop.cc:309

Lots of crash reports but mostly coming from a single user so it could be malfunctioning hardware - though it's odd that it would always fail here.

Comment 1

[Andrew McCreight [:mccr8]]

Based on a few crash reports, it looks like this is specifically the sharedFontListBlocks argument to SetXPCOMProcessAttributes.

Comment 2

[Jed Davis [:jld] ⟨⏰|UTC-7⟩ ⟦he/him⟧]

This looks like a duplicate of bug 1664151; see previous discussion there.