Hi Laura,

Thanks a lot for taking a look!

On 2016/3/3 9:25, Laura Abbott wrote:

(cc -mm and Joonsoo Kim)

[...]

I played with this a bit and can see the same problem. The sanity
check of CmaFree < CmaTotal generally triggers in
__move_zone_freepage_state in unset_migratetype_isolate.
This also seems to be present as far back as v4.0 which was the
first version to have the updated accounting from Joonsoo.

Would you mind point out the specific commit ID?

Thanks
Hanjun