Just wanted to link to Dylan's blog post from a couple weeks ago
detailing his fix for an old memory leak in BMO:
http://dylanwh.tumblr.com/post/147319029597/bmo-memory-leaks
Although the memory leak wasn't (yet) causing user-visible errors, it
was resulting in the web server restarting worker processes extremely
often (usually several hundred times an hour), which unsurprisingly
caused some performance issues. These problems would have only gotten
worse as more people switch to the new modal UI.
Thanks Dylan!
Mark