1618126 - Crash in [@ mozilla::dom::WindowGlobalParent::Init]

Status: RESOLVED DUPLICATE of bug 1617063

(Core :: DOM: Content Processes, defect)

Description

[Calixte Denizet (:calixte)]

This bug is for crash report bp-97fa7ad1-f7d3-48f7-a3b7-a885d0200221.

Top 10 frames of crashing thread:

0 XUL mozilla::dom::WindowGlobalParent::Init dom/ipc/WindowGlobalParent.cpp
1 XUL mozilla::dom::BrowserParent::RecvNewWindowGlobal dom/ipc/BrowserParent.cpp:1329
2 XUL mozilla::dom::PBrowserParent::OnMessageReceived ipc/ipdl/PBrowserParent.cpp:6248
3 XUL mozilla::dom::PContentParent::OnMessageReceived ipc/ipdl/PContentParent.cpp:6544
4 XUL mozilla::ipc::MessageChannel::DispatchMessage ipc/glue/MessageChannel.cpp:2215
5 XUL nsThread::ProcessNextEvent ipc/glue/MessageChannel.cpp:2007
6 XUL NS_ProcessPendingEvents xpcom/threads/nsThreadUtils.cpp:429
7 XUL nsBaseAppShell::NativeEventCallback widget/nsBaseAppShell.cpp:87
8 XUL nsAppShell::ProcessGeckoEvents widget/cocoa/nsAppShell.mm:440
9 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 

There are 47 crashes (from 26 installations) in nightly 75 starting with buildid 20200221095110. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1615403.

[1] https://hg.mozilla.org/mozilla-central/rev?node=be2f00ff66e6

Comment 1

[Calixte Denizet (:calixte)]

For all these crashes the moz_crash_reason is always:
MOZ_DIAGNOSTIC_ASSERT(!mBrowsingContext->GetParent() || mBrowsingContext->GetEmbedderInnerWindowId()) (When creating a non-root WindowGlobalParent, the WindowGlobalParent for our embedder should've already been created.)

Comment 2

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

:calixte, since this bug is a regression, could you fill (if possible) the regressed_by field?
For more information, please visit auto_nag documentation.

Comment 3

[Nika Layzell [:nika] (ni? for response)]

I believe this is the same issue as bug 1617063, and should be fixed by the changes in that patch.