1387529 - Crash in js::TypeScript::Monitor / js::JitScript::MonitorBytecodeType

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect, P3)

Description

[[:philipp]]

This bug was filed from the Socorro interface and is 
report bp-82705edd-7c5b-4781-a06b-cbad60170719.
=============================================================
Crashing Thread (9)
Frame 	Module 	Signature 	Source
0 	libxul.so 	js::TypeScript::Monitor 	js/src/vm/ObjectGroup.h:126
1 	libxul.so 	js::jit::DoTypeMonitorFallback 	js/src/jit/SharedIC.cpp:2415
2 		@0x3a32ab76 	

when focusing on crashes from android this signature seems to have started there during the 55 nightly cycle and continued into 55.0b afterwards:
https://crash-stats.mozilla.com/signature/?product=FennecAndroid&_sort=-date&signature=js%3A%3ATypeScript%3A%3AMonitor&date=%3E%3D2016-11-01T00%3A00%3A00.000Z&date=%3C2017-08-04T17%3A30%3A00.000Z#graphs

on firefox desktop though the crash signature has been around with a low volume for a while already.

Comment 1

[Sylvestre Ledru [:Sylvestre]]

Small volume for now, not tracking

Comment 2

[Sylvestre Ledru [:Sylvestre]]

Moving to p3 because no activity for at least 1 year(s).
See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information

Comment 3

[Pascal Chevrel:pascalc]

Starting with 20190307215858 on Nightly, we have a spike with 20 to 30 crashes a day on Nightly while Beta 66 is around 40 crashes a day, it seems that there is a recent change that is causing this spike.

Comment 4

[Calixte Denizet (:calixte)]

I filed a new bug for this crash since it's a recent regression:
https://bugzilla.mozilla.org/show_bug.cgi?id=1534118

Comment 5

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

Closing because no crashes reported for 12 weeks.