114219 - mark with 0xdd in PresShell::FreeFrame

Status: RESOLVED FIXED

(Core :: Layout, defect, P2)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

We should mark memory with 0xdd in DEBUG builds in PresShell::FreeFrame so that
we don't get in the habit of accessing memory we've freed back to the pres
shell's arena.

I'm going to file two dependent bugs that need to happen before this does.

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: patch

Comment 2

[Hixie (not reading bugmail)]

Seems like a comment would be good here, lest someone "optimise" this away...

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: patch with comment

Comment 4

[Hixie (not reading bugmail)]

r=hixie, fwiw

Comment 5

[Boris Zbarsky [:bzbarsky]]

Comment on attachment 81673 [details] [diff] [review]
patch with comment

sr=bzbarsky

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Fix checked in to trunk, 2002-08-06 06:57 PDT.