stack_top         127 os/unix/ngx_freebsd_rfork_thread.c     char       *stack, *stack_top;
stack_top         153 os/unix/ngx_freebsd_rfork_thread.c     stack_top = stack + usable_stack_size;
stack_top         156 os/unix/ngx_freebsd_rfork_thread.c                    "thread stack: %p-%p", stack, stack_top);
stack_top         160 os/unix/ngx_freebsd_rfork_thread.c     id = rfork_thread(RFPROC|RFTHREAD|RFMEM, stack_top,
stack_top         170 os/unix/ngx_freebsd_rfork_thread.c         nthreads = (ngx_freebsd_kern_usrstack - stack_top)