934752 - Don't CollectWhite JS in the cycle collector

Status: RESOLVED DUPLICATE of bug 1087799

(Core :: XPCOM, defect)

Comment 1

[Andrew McCreight [:mccr8]]

Attachment: Don't collect white JS objects, WIP

JS objects don't do anything in their Root, Unlink, or Unroot callbacks, and we are already detecting them by looking at their refcounts, so we should just skip them entirely.  I should also assert that they are using either the JS or JSCompartment participant.  It would also be nice to figure this out earlier in the process, so we don't need to allocate quite so large of a white nodes buffer.

Comment 2

[Andrew McCreight [:mccr8]]

This probably isn't a big deal until I make CollectWhite incremental, which will requiring the set of white nodes on the heap rather than the stack.