android_kernel_xiaomi_sm8350/arch/ia64/mm
KAMEZAWA Hiroyuki 83d2cd3de4 [IA64] bugfix stack layout upside-down
ia64 expects following vm layout:

== low memory
[register-stack grows up]
[memory-stack grows down]
== high memory

But the code assigns the base of the register stack at the
maximum stack size offset from the fixed address where the
stack *might* start.  Stack randomization will result in the
memory stack starting at a lower address than this, and if the
user has set a low stack limit with "ulimit -s", then you can
end up with the register stack above the memory stack (or if
you were very unlucky right on top of it!).

Fix: Calculate the base address for the register stack starting
from the actual address of the memory stack.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-29 15:15:24 -07:00
..
contig.c [IA64] min_low_pfn and max_low_pfn calculation fix 2007-03-20 13:41:57 -07:00
discontig.c [IA64] min_low_pfn and max_low_pfn calculation fix 2007-03-20 13:41:57 -07:00
extable.c
fault.c
hugetlbpage.c
init.c [IA64] bugfix stack layout upside-down 2007-03-29 15:15:24 -07:00
ioremap.c
Makefile
numa.c
tlb.c