42970 - [MLK] Various objects leaked viewing tables

Status: VERIFIED DUPLICATE of bug 17390

(Core :: XUL, defect, P2)

Description

[rusty.lynch]

I've been experimenting with my current Linux build, and have found that we are
leaking all kinds of objects when viewing a large html table, and if I scroll
through the whole page then we leak many times more objects.  One interesting
note is that this is only true for 'mozilla-bin'. Doing the same test of
'viewer' results in only a small amount of leaks.

I've captured some bloatview logs (sorted for the largest leaks on top.)  For my
test case, I am viewing a huge html table generated by bloatblame.

My test case is:
  * http://www.linux86.com/testcases/bigtable.html

this is a bloatview log for viewing bigtable without scrolling: (~ 0.6M leaked)
  * http://www.linux86.com/bloatview/nonscrolling_table_bloatview.txt

this is a bloatview log for viewing bigtable and slowly scrolling up and down
the page: ( ~ 4.4M leaked )
  * http://www.linux86.com/bloatview/scrolling_table_bloatview.txt

here is the same test case repeated twice by reloading: (~ 8.2M leaked )
  * http://www.linux86.com/bloatview/refresh_scrolling_table_bloatview.txt

and here is what it looks like if 'viewer' is used: (~ 2k leaked )
  * http://www.linux86.com/bloatview/viewer_scrolling_table_bloatview.txt

Comment 1

[rusty.lynch]

Adding mlk keyword.

Comment 2

[Yixiong Zou]

additional notes:
1. Comment out this line: 
http://lxr.mozilla.org/seamonkey/source/rdf/content/src/nsXULKeyListener.cpp#366
   the leaks associated with loading the page will all be gone. 

2. Seems to me that additional leaks during scrolling only happens when you 
scroll the page by dragging the button on the scroll bar. if you scroll the 
page by clicking on the scroll bar, there's no leak. 

Comment 3

[karnaze (gone)]

Changing the component from tables to RDF based on the last comments. 

Comment 4

[Chris Waterson]

-> XUL

Comment 5

[Chris Waterson]

no, really -> XUL!

Comment 6

[Peter Trudelle]

->Pavlov (no, really)

Comment 7

[Peter Trudelle]

nsbeta3+, p2 for M18, cc hyatt

Comment 8

[Stuart Parmenter]

adding ccs

Comment 9

[Stuart Parmenter]

this appears to have been fixed by dbaron.  marking as a duplicate of his bug

*** This bug has been marked as a duplicate of 17390 ***

Comment 10

[Stephen Koren]

vrfy dupe