[Bug sanitizer/55975] asan does not work with 46 bit address space on PowerPC64

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55975

--- Comment #28 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-23 13:05:57 UTC ---
Why doesn't it error for unlimited stack say on x86_64?  If the stack mapping
size is unlimited, it also potentially overlaps with the shadow memory.  If you
have a growsdown mapping, it simply needs to be capped by the end of the shadow
memory area resp. start of the high memory region.