1387702 - Crash in mozilla::AbstractThread::DispatchDirectTask

Status: RESOLVED FIXED

(Core :: XPCOM, defect, P1)

Description

[Calixte Denizet (:calixte)]

This bug was filed from the Socorro interface and is 
report bp-63c050d3-12cc-41df-b810-401990170804.
=============================================================

There are 149 crashes in nightly 57 with buildids 20170804193801 and 20170804180018. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1364821.
This signature is ranked #4 in top-crashers.

[1] https://hg.mozilla.org/mozilla-central/rev?node=4e19186dac46084035078ab79b636b4f172d411d

Comment 1

[Nicholas Nethercote [inactive]]

This has occurred 911 times on Fennec across 651 installations in the past 7 days. These are off-the-charts number for Fennec Nightly, making it probably 10 or 20 times more crashy than normal.

billm, please address this ASAP! Backing out is probably the best immediate option, unless the problem is obvious.

Comment 2

[JW Wang [:jwwang] [:jw_wang]]

Attachment: Bug 1387702 - be sure to enter the AbstractThread context for state-mirroring to be usable.

Review commit: https://reviewboard.mozilla.org/r/165578/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/165578/

Comment 5

[Bill McCloskey [inactive unless it's an emergency] (:billm)]

Comment on attachment 8894389 [details]
Bug 1387702 - be sure to enter the AbstractThread context for state-mirroring to be usable.

https://reviewboard.mozilla.org/r/165578/#review170802

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/c2deb51eca9b
be sure to enter the AbstractThread context for state-mirroring to be usable. r=billm

Comment 7

[Bill McCloskey [inactive unless it's an emergency] (:billm)]

I think it would be good to add a test here. Could you put one together, JW?

Comment 8

[JW Wang [:jwwang] [:jw_wang]]

We have dom/media/test/test_playback_hls.html which however is not run by Try by default. We have bug 1375389 to enable the tests on AutoPhone.

Comment 9

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/c2deb51eca9b