Created attachment 57036 [details]
Screenshot of the page in WebKit r60144
The right sidebar on this page is 131,097px high for no apparent reason.
Only seeing it on WebKit r60144, no other browsers (inc. Safari).
Confirmed with r60144. Looks like a 64 bit issue only - are you sure that you are testing on Mac OS X 10.5, as Platform field above indicates?
Sorry, no; Snow Leopard. Updated the system info.
Fixed in <http://trac.webkit.org/changeset/60247>.
http://trac.webkit.org/changeset/60247 might have broken Chromium Mac Release