Reduce MAX and Default DATA Segment sizes to leave more MMAP space for use by mmap_malloc.
Reduce MAX and Default DATA Segment sizes to leave more MMAP space for
use by mmap_malloc.

This change and MMAP(2) malloc need some care to rebuild the system.
I definitely suggest using a snapshot when it appears in the coming days.

For the daring people :
- update src
- build and install new kernel, no reboot yet
- build and install new libc
- build and install new gcc
- build and install new make
- build and install new binutils
- reboot
- make build
(thanks martin@)

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars