[RFC, PATCHv2 29/29] mm, x86: introduce RLIMIT_VADDR

On Tue, Jan 03, 2017 at 10:27:22AM -0800, Andy Lutomirski wrote:

On Tue, Jan 3, 2017 at 8:04 AM, Kirill A. Shutemov [off-list ref] wrote:

quoted

And what about stack? I'm not sure that everybody would be happy with
stack in the middle of address space.

I would, personally.  I think that, for very large address spaces, we
should allocate a large block of stack and get rid of the "stack grows
down forever" legacy idea.  Then we would never need to worry about
the stack eventually hitting some other allocation.  And 2^57 bytes is
hilariously large for a default stack.

The stack in the middle of address space can prevent creating other huuuge
contiguous mapping. Databases may want this.

-- 
 Kirill A. Shutemov