Re: aarch64 kernel oops during mmap

On Thu, 2014-01-16 at 18:28 +0000, Ryan Harkin wrote:

On 16 January 2014 16:59, Tom Gall tom.gall@linaro.org wrote:

...

Now on the real bit of fun that I want to get to the bottom of.

This is from startx on the model.

I have -C cache_state_modelled=0 set. Would that have an affect here?

​No. This doesn't effect the functionality of the model. From memory, this is a debugging option that tells the user (via output to the terminal where you launched the model) if there have been any cache state violations.

I think it's a bit more than that and tells the model to emulate the cache in a similar way to how hardware works, so if the running code doesn't perform cache maintenance correctly it will go horribly wrong as on real hardware.