Quote from https://capsule8.com/blog/kernel-configuration-glossary/:
> Significance: Critical
> In support of Kernel Address Space Layout Randomization (KASLR) this randomizes
> the physical address at which the kernel image is decompressed and the virtual
> address where the kernel image is mapped as a security feature that deters
> exploit attempts relying on knowledge of the location of kernel code internals.
IMHO this is safe to be enabled on any architecture.
Patch for aarch64: https://patchwork.ipfire.org/patch/3162/
@Arne: Since I am not sure on whether enabling this on armv5tel, I would like to assign this bug to you.
Patch for armv5tel: https://patchwork.ipfire.org/patch/3172/
build fails on aarch64!
Short test on an RPi3 works now.