Re: [Qemu-devel] [PATCH] linux-user: fix mips 32-on-64 prealloc case

[Peter Maydell]

On 3 January 2013 13:17, Alexander Graf <address@hidden> wrote:
> MIPS only supports 31 bits of virtual address space for user space, so let's
> make sure we stay within that limit with our preallocated memory block.
>
> This fixes the MIPS user space targets when executed without command line
> option.

This looks weird -- why should the guest care that we've reserved a
4GB block which it only uses half of? Or is the problem that host
mmap() ends up handing out addresses from anywhere in the 4GB
reserved area?

-- PMM