Greetings All If you're developing a VFS plug-in and you have problems unmounting your volumes on Panther, you should read the following. We've made changes in Panther that cause the VFS layer to hold extra references to your volume's root vnode. Depending on how your xxx_unmount VOP is implemented, you may find that an attempt to unmount your volume fails with the error EBUSY. Specifically, you xxx_unmount VOP should call vflush *before* checking the v_usecount of the root vnode. For example, your code might previous have looked like this... if (rootvp->v_usecount > 1 && !(flags & FORCECLOSE)) { return (EBUSY); } error = vflush(mp, rootvp, flags); if (error) { return (error); } You should make sure that it looks like this... error = vflush(mp, rootvp, flags); if (error) { return (error); } if (rootvp->v_usecount > 1 && !(flags & FORCECLOSE)) { return (EBUSY); } S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.