Steps to reproduce:
1. Load www.marketwatch.com
2. After the page loads, scroll to the bottom of the page
3. Note that at the end of the content is a large blank footer area
4. See screenshot
Not reproducible in Safari on 10.6.6 or in Firefox on 11A379a.
Created attachment 89067 [details]
Created attachment 89100 [details]
Fixed in r83514.
This broke fast/repaint/trailing-floats-root-line-box-overflow.html!