2014/1/9 Michal Nazarewicz <mina86@xxxxxxxxxx>: > On Thu, Jan 09 2014, Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> wrote: >> Third, there is the problem on buddy allocator. It doesn't consider >> migratetype when merging buddy, so pages from cma or isolate region can >> be moved to other migratetype freelist. It makes CMA failed over and over. >> To prevent it, the buddy allocator should consider migratetype if >> CMA/ISOLATE is enabled. > > There should never be situation where a CMA page shares a pageblock (or > a max-order page) with a non-CMA page though, so this should never be an > issue. Right... It never happens. When I ported CMA region reservation code to my own code for testing, I made a mistake. Sorry for noise. Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>