[CC linux-mm and some usual suspects] On Tue 17-05-16 23:37:55, lunar12 lunartwix wrote: > A 4MB dma_alloc_coherent in kernel after malloc(2*1024) 40 times in > CMA region by user space will cause an error on our ARM 3.18 kernel > platform with a 32MB CMA. > > It seems that the malloc in CMA region will be aligned to > CMA_ALIGNMENT everytime even if the requested malloc size is very > small so the CMA region is not available after the malloc operations. > > Is there any configuraiton that can change this behavior?? > > Thanks > > Cheers > Ken
-- Michal Hocko SUSE Labs
