K 10 svn:author V 7 davidxu K 8 svn:date V 27 2003-10-30T02:55:43.000000Z K 7 svn:log V 194 Try to fetch thread mailbox address in page fault trap, so when thread blocks in page fault hanlder, and upcall thread can be scheduled. It is useful if process is doing lots of mmap based I/O. END