Re: [Qemu-devel] [PATCH] linux-user: map at TARGET_UNMAPPED_BASE with reserved_va

[Paul Brook]

> When mmap()'ing memory somewhere where it's not allowed, we should not
> default to the "next free page" which could be right after brk()'ed memory,
> but rather at TARGET_UNMAPPED_BASE, which ensures that brk() can extend its
> space later on.

NACK, As discussed on IRC.

Effectively prevents mmap from allocating below TARGET_UNMAPPED_BASE.
This wastes a lot of perfectly good address space.  With small -R values it 
leaves mmap with no usable virtual address space.

Paul