Subj : Re: SpiderMonkey GC problem? To : Lyndon Griffin From : Brendan Eich Date : Tue Jan 18 2005 09:06 pm The stack suggests you have kept a pointer to a JSObject without rooting it via JS_AddNamedRoot. You seem not to have read the API docs or gctips.html under http://www.mozilla.org/js/spidermonkey/ -- please do so. GC means you don't call free on the GC'd data structures. So don't even worry about that. /be .