1249514 - Intermittent DevToolsUtils.assert threw an exception: Error: Assertion failure: threadActor should exist when creating sources.

Status: RESOLVED WONTFIX

(DevTools :: Debugger, defect, P3)

Description

[Hiroyuki Ikezoe (:hiro)]

https://treeherder.mozilla.org/logviewer.html#?job_id=16913166&repo=try

Comment 1

[Phil Ringnalda (:philor)]

This isn't actually intermittent or a failure, it's noise which occurs in every run, green or orange. The problem with having it filed as an intermittent-failure is that people will just star it, and ignore the actual failure in the run.

Comment 2

[Hiroyuki Ikezoe (:hiro)]

philor, thanks for the correction.  I did not notice that the error happens on greens.

Comment 3

[Eddy Bruel [:ejpbruel]]

This doesn't seem to be actually breaking anything, but it's definitely a bug. The problem seems to be caused by the fact that TabSources are scoped by TabActor, but the SourceActors it stores are actually scoped by ThreadActor. As a result, we have several tests that try to access TabSource on TabActor without ever creating a ThreadActor, which leads to this assertion.

Comment 4

[Jason Laster [:jlast]]

closing as this is an exception that no longer fires