480748 - FF hang on print or print preview

Status: RESOLVED DUPLICATE of bug 470851

(Firefox :: General, defect)

Description

[Bob Bonomo]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.6) Gecko/2009011913 Firefox/3.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.6) Gecko/2009011913 Firefox/3.0.6

I realise that the page is very badly coded (1500+ errors in tidy) but it still should not hang.

Names and accounts have been XXed in the test case

What I found that works is to remove
line 28 column 1  (starting <table>)
up to line 65 col 27 (ending </table>)
but this removes an unequal number of <table></table> entries

test case for not hang:
http://ca.geocities.com/mydumbsite/stuff/nothangprint.html

Reproducible: Always

Steps to Reproduce:
1. go to page
2.print preview
3.
Actual Results:  
hang

Expected Results:  
print preview

This does not occur in IE6.x and IE7. (UGH)

Littlefox theme and standard theme

Comment 1

[Bob Bonomo]

Also occurs on XP fr patched up-to-date

Comment 2

[Arie Paap [:wildmyron]]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2a1pre) Gecko/20090225 Minefield/3.2a1pre ID:20090225033705

hangs on trunk as well with 100% cpu usage

Comment 3

[Arie Paap [:wildmyron]]

Attachment: Partially reduced testcase

This is a partially reduced testcase. It is standalone and contains only three tables but still has a way to go.

Comment 4

[Arie Paap [:wildmyron]]

Attachment: Reduced testcase

I've minimised this about as far as I can go, however I suspect the hang depends on a page break occuring part way through one of the cells (last or second last) so some adjustment to cell contents might be needed to get this to hang depending on Page layout, fonts, etc.

The hang is in nsBlockFrame::CollectFloats

Comment 5

[Arie Paap [:wildmyron]]

This is pretty much the same thing as bug 470851. 

That testcase hangs at nsBlockFrame::CollectFloats for me as well.