KASan for powerpc

[KHUSHAL GUMGAONKAR]

Hi Balbir,sorry for not mentioning details.
below are the details1. What machine you tried this on?    - I am using PowerPC e500mc processor with and it's customised. Can't share much details
2. What MMU mode?    -Not sure about this.
3. What kernel?    -kernel version is 4.1.35
4. What gcc version, flags for KASAN    -gcc version 4.9.2 and KASAN_MINIMAL FLAG 
5. What was the KASAN design - how much shadow memory to real memory?
    -we have continuous 2 GB  low memory and shadow size is 256 MB


 THANKS AND REGARDS,
KHUSHAL K. GUMGAONKARM.TECH IN VISUAL INFORMATION AND EMBEDDED SYSTEM,IIT KHARAGPUR 

    On Friday, 13 October 2017 4:45 AM, Balbir Singh <bsingharora at gmail.com> wrote:
 

 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.


   
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