1433045 - Crash in mozilla::PresShell::DoFlushPendingNotifications

Status: RESOLVED DUPLICATE of bug 1433056

(Core :: CSS Parsing and Computation, defect)

Description

[Calixte Denizet (:calixte)]

This bug was filed from the Socorro interface and is
report bp-0430a810-7a4f-4f3b-9c4a-a0a050180125.
=============================================================

Top 10 frames of crashing thread:

0 xul.dll mozilla::PresShell::DoFlushPendingNotifications layout/base/PresShell.cpp:4105
1 xul.dll mozilla::PresShell::DoFlushPendingNotifications layout/base/PresShell.cpp:4088
2 xul.dll nsPresShellEventCB::HandleEvent layout/base/PresShell.cpp:486
3 xul.dll mozilla::EventTargetChainItem::HandleEventTargetChain dom/events/EventDispatcher.cpp:542
4 xul.dll mozilla::EventDispatcher::Dispatch dom/events/EventDispatcher.cpp:865
5 xul.dll mozilla::PresShell::DispatchEventToDOM layout/base/PresShell.cpp:7985
6 xul.dll mozilla::PresShell::HandleEventInternal layout/base/PresShell.cpp:7779
7 xul.dll mozilla::PresShell::HandleEvent layout/base/PresShell.cpp:7394
8 xul.dll nsViewManager::DispatchEvent view/nsViewManager.cpp:812
9 xul.dll nsView::HandleEvent view/nsView.cpp:1139

=============================================================

There are 32 crashes (from are 20 installations) in nightly 60 with buildid 20180124220129. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1431474.

[1] https://hg.mozilla.org/mozilla-central/rev?node=60d339bdf87e

Comment 1

[Calixte Denizet (:calixte)]

:emilio, could you investigate please ?

Comment 2

[Cristina Badescu [:cbadescu], Experiments QA]

I've managed to reproduce this when performing automatically selections using Firefox Screenshots.

I've filed this issue here: bug 1433056.

Comment 3

[Emilio Cobos Álvarez (:emilio)]

Yup, let's dupe it to bug 1433056, I'm investigating using those STR.

As I said there, if this is very frequent I can downgrade the assertions to debug assertions for now.