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

[Richard Henderson]

On 01/03/2013 10:39 AM, Eric Johnson wrote:
> While making this change please keep in mind that newer MIPS32
> processors allow more than 31 bits of user address space (up to 3.5
> GiB) if they have Enhanced Virtual Address support.

Interesting.

Well, would you be able to help figure out exactly what's going on in:

  http://lists.gnu.org/archive/html/qemu-devel/2012-12/msg03233.html

and the thread leading up to it?

Now, I don't *know* that this is an emulation failure -- the linux-user-test
binary certainly isn't aware of enhanced virtual addresses.  So it's
possible that (older?) binaries can't cope with more than 2GB.

Alternately, it really is a translation problem somewhere...


r~