• Andrew McCreight's avatar
    Bug 1663315 - Don't load new JSMs during shutdown. r=kmag, a=RyanVM · 3df83ae2
    Andrew McCreight authored
    Under unknown circumstances, we can end up running chrome
    JS during thread manager shutdown. Sometimes this ends up
    trying to load new JSMs, but gJarHandler has already been
    cleared, leading to a crash.
    To avoid this and other issues, this patch forbids the
    importing of new JSMs after we're late enough in shutdown
    to have cleared the ClearOnShutdown pointers. I allow the
    importing of JSMs that have already been loaded, as that
    seems like it should be okay.
    Differential Revision: https://phabricator.services.mozilla.com/D89477