Panic while building perl on sheevaplug/armv5 freebsd 10.

[Ian Lepore]

On Fri, 2013-09-13 at 12:44 -0700, Adrian Chadd wrote:
> .. don't we have a guard page on ARM/MIPS so we can trap out whenever that
> occurs?
> 
> That way we can at least try to identify where people have made some "huh
> we're running on amd64, stack space is cheap huh" assumptions?
> 

A "page-not-mapped" fault with a stack-looking address (0xddf9d000) is
what happened -- my theory is that we hit the guard page.

-- Ian