KASan for powerpc

[Balbir Singh]

On Tue, Oct 10, 2017 at 11:51 PM, KHUSHAL GUMGAONKAR
<khushaluniversal at yahoo.com> wrote:
>  Hi Aneesh,
>
> I am facing unknown error in printk  during boot and after that kernel Hangs
> on powerpc with KASan changes.
>

This is probably the worst way to reach out. The reason being

You describe the crash your seeing, there is no description of

1. What machine you tried this on?
2. What MMU mode?
3. What kernel?
4. What gcc version, flags for KASAN
5. What was the KASAN design - how much shadow memory to real memory?

Unless you can work out those details, this is just noise on the list.
I posted an RFC for radix -
http://linuxppc.10917.n7.nabble.com/RFC-PATCH-v1-powerpc-radix-kasan-KASAN-support-for-Radix-td125864.html

It needs work, please read the implementations so far, discuss your
design/understanding. Then we can discuss what issues you are running
into, otherwise it's just noise without effort.

Balbir Singh.