740525 - display zombie compartments in about:memory

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect)

Description

[Chris Pickett]

I filed a request to automatically identify zombies in Bug 740524.  I think that functionality would be useful for a bunch of user-facing things in about:memory, for example:

1) annotating which compartments are zombies in "Explicit Allocations"

2) adding a line like js-compartments-zombie to "Other Measurements" along with a count of zombies

3) summarizing a list of zombie compartments at the bottom of "Other Measurements" along with URLs 

4) if there are zombies, including a link to description somewhere of how to do add-on bisection to identify potential zombie makers.  Something along the lines of https://support.mozilla.org/en-US/kb/Troubleshooting-extensions-themes#w_test-for-faulty-extensions but more explicit than this

5) displaying if any enabled add-ons are known zombie makers along with link to bugzilla report

Comment 1

[Nicholas Nethercote [inactive]]

Have you seen the recently-added about:compartments page?

Comment 2

[Guilherme Lima]

Fixed by bug 911641?

Comment 3

[Till Schneidereit [:till]]

Yes, thank you!