FYI, I found this on the MySQL web site: The STACK_SIZE constant in LinuxThreads controls the spacing of thread stacks in the address space. It needs to be large enough so that there will be plenty of room for the stack of each individual thread, but small enough to keep the stack of some thread from running into the global mysqld data. Unfortunately, the Linux implementation of mmap(), as we have experimentally discovered, will successfully unmap an already mapped region if you ask it to map out an address already in use, zeroing out the data on the entire page, instead of returning an error.
This link will take you to the section with this... http://www.mysql.com/documentation/mysql/bychapter/manual_Installing.html#Li nux Billy Rose [EMAIL PROTECTED]
