On the main page (which is refreshed every 5s), each build in the build queue is
render again with a tooltip (using hudson-behavior.js#makeTooltip). This method
call YUI to create a new tooltip.
Problems comes from this widget. Each time we make a such widget, a div
(representing the tooltip) is added in the dom but never removed : DOM document
becomes bigger and bigger and (when the build queue is big), the browser
(Firefox or IE) crashes because of used memory.
A very quick fix consists in removing tooltips. But I think a better way to do
can be to create a single tooltip div in the page (without YUI) and display it
under the mouse when needed displaying the right message.
Sorry to report this issue without any patch, If I find out some time, I'll try
to attach a patch later.