K 10 svn:author V 7 davidxu K 8 svn:date V 27 2003-08-05T12:00:55.000000Z K 7 svn:log V 342 Introduce a thread mailbox flag TMF_NOUPCALL. On some architectures other than i386 or AMD64, TP register points to thread mailbox, and they can not atomically clear km_curthread in kse mailbox, in this case, thread retrieves its thread pointer from TP register and sets flag TMF_NOUPCALL in its thread mailbox to indicate a critical region. END