1315638 - Crash in xul.dll@0x2c78630 | mozilla::mscom::MainThreadHandoff::FixArrayElements

Status: RESOLVED FIXED

(Core :: DOM: Content Processes, defect)

Description

[Marco Zehe (:MarcoZ)]

This bug was filed from the Socorro interface and is 
report bp-ffc491ee-af55-4c76-87cb-2d7aa2161107.
=============================================================

First time I'm seeing this crash. Updated from the 2016-11-03 to the 2016-11-06 Nightly build and see this and similar crashes when viewing crash reports with NVDA Next Snapshot running and accessibility therefore on. However, don't see accessibility itself in the stack, so am filing it against the general E10S component for now, but CC'ing aklotz. Tabs crash, and I had to disable E10S to even be able to file this bug.

More reports:
bp-dda64d7b-aba7-45b7-b4a8-bab932161107
bp-137c5a81-d72d-4c1b-b288-c692d2161107
bp-c223af2b-00ef-475b-a227-21ab32161107

Comment 1

[(No longer employed by Mozilla) Aaron Klotz]

This is fallout from bug 1311748.

Looks ArrayData needs special annotations so that we know when a method's array is allocated by the server, thus requiring an extra level of indirection.

Comment 2

[(No longer employed by Mozilla) Aaron Klotz]

Attachment: Bug 1315638: Modify MainThreadHandoff::FixArrayElements to be able to distinguish between outparams with different levels of indirection;

Review commit: https://reviewboard.mozilla.org/r/91186/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/91186/

Comment 3

[(No longer employed by Mozilla) Aaron Klotz]

Comment on attachment 8808368 [details]
Bug 1315638: Modify MainThreadHandoff::FixArrayElements to be able to distinguish between outparams with different levels of indirection;

Review request updated; see interdiff: https://reviewboard.mozilla.org/r/91186/diff/1-2/

Comment 4

[Jim Mathies [:jimm]]

Comment on attachment 8808368 [details]
Bug 1315638: Modify MainThreadHandoff::FixArrayElements to be able to distinguish between outparams with different levels of indirection;

https://reviewboard.mozilla.org/r/91186/#review91256

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d5a021318c9a
Modify MainThreadHandoff::FixArrayElements to be able to distinguish between outparams with different levels of indirection; r=jimm

Comment 6

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/d5a021318c9a