HI Balbir, On Thu, Feb 2, 2017 at 2:41 PM, Balbir Singh <bsinghar...@gmail.com> wrote: >> @@ -100,6 +132,8 @@ config PPC >> select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && >> POWER7_CPU) >> select HAVE_KPROBES >> select HAVE_ARCH_KGDB >> + select HAVE_ARCH_MMAP_RND_BITS >> + select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT > > COMPAT is on for ppc64 by default, so we'll end up with COMPAT_BITS same > as before all the time.
No, actually the 'ARCH_MMAP_RND_COMPAT_BITS' values can be changed after boot using the '/proc/sys/vm/mmap_rnd_compat_bits' tunable: http://lxr.free-electrons.com/source/arch/Kconfig#L624 Regards, Bhupesh
