Comment 88 for bug 207072

ok. I can reproduce the lockup problem; it appears that something related to the bookmarks is triggering constant attempts to remount the bookmarked resource when the mount fails, and unlike in earlier versions of gvfs, the patched version will return a failure when the mount fails - before it would just fail silently.

What's not clear to me is why the same problem doesn't occur if you create a bookmark pointing to an smb /share/ as opposed to an smb /server/. Evidently there is some key difference between the smb and smbbrowse backends that has been overlooked.