K 10 svn:author V 4 jeff K 8 svn:date V 27 2003-05-25T18:18:32.000000Z K 7 svn:log V 224 - Create a new lock, umtx_lock, for use instead of the proc lock for protecting the umtx queues. We can't use the proc lock because we need to hold the lock across calls to casuptr, which can fault. Approved by: re END