1756550 - Crash in [@ js::ContextChecks::check]

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect, P2)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

6 crashes from 2 installations (both Windows 10), new in Firefox 99.0a1 20220221213946

Crash report: https://crash-stats.mozilla.org/report/index/601c07d8-8703-45c2-823c-c09050220222

MOZ_CRASH Reason: *** Compartment mismatch 2ccf2ca7d80 vs. 2ccf2ce5b00 at argument 1

Top 10 frames of crashing thread:

0 xul.dll js::ContextChecks::check js/src/vm/JSContext-inl.h:79
1 xul.dll JS::FinishDynamicModuleImport js/src/vm/Modules.cpp:95
2 xul.dll static JS::loader::ModuleLoaderBase::FinishDynamicImport js/loader/ModuleLoaderBase.cpp:601
3 xul.dll JS::loader::ModuleLoaderBase::EvaluateModule js/loader/ModuleLoaderBase.cpp:805
4 xul.dll JS::loader::ModuleLoaderBase::EvaluateModule js/loader/ModuleLoaderBase.cpp:832
5 xul.dll JS::loader::ModuleLoaderBase::ProcessDynamicImport js/loader/ModuleLoaderBase.cpp:721
6 xul.dll mozilla::dom::ScriptRequestProcessor::Run dom/script/ScriptLoader.cpp:462
7 xul.dll static nsContentUtils::AddScriptRunner dom/base/nsContentUtils.cpp:5762
8 xul.dll mozilla::dom::ModuleLoader::ProcessLoadedModuleTree dom/script/ModuleLoader.cpp:425
9 xul.dll JS::loader::ModuleLoadRequest::DependenciesLoaded js/loader/ModuleLoadRequest.cpp:148

Comment 1

[Yulia Startsev [:yulia]]

This also looks related: https://crash-stats.mozilla.org/signature/?product=Firefox&signature=js%3A%3AContextChecks%3A%3Acheck

Comment 2

[Matthew Gaudet (he/him) [:mgaudet]]

So far all crashes from one build, but we should keep an eye on this...

Comment 3

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

Changing the priority to p2 as the bug is tracked by a release manager for the current nightly.
See What Do You Triage for more information

Comment 4

[Yulia Startsev [:yulia]]

Attachment: Bug 1756550 - propagate webext global to all dynamically imported modules; r=jonco

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d2647082c823
propagate webext global to all dynamically imported modules; r=jonco

Comment 6

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/d2647082c823