It is enabled by default. If you don't see it - it probably cannot 
unwind stack

On 15-02-03 02:40 AM, Желобанов Дмитрий Владимирович wrote:
>
> Hello
>
> How to enable printing backtrace in mudflap violations?
>
> I use SDK 6.5.0
>
> Dmitry Zhelobanov.
>