Re: CMA allocation failure and Latency issue

2019-03-07 Thread Michal Hocko
[Cc linux-mm and lkml] Please do not use html emails, thanks! On Thu 07-03-19 13:28:59, Pankaj Suryawanshi wrote: > Hello, > > I am facing issue related to CMA allocation failure of large size buffer. > > I am beginner in Linux memory management. So I need your help to de

CMA allocation failure

2018-01-27 Thread Skidanov, Alexey
Hello, I enabled CMA global area to be 8GB. Immediately after boot, I'm able to allocate the really big contiguous chunks of memory (about 8GB). But several minutes after the boot, there is some degradation in an ability of CMA to allocate contiguous memory buffers: [ 2333.037004] cma:

CMA allocation failure

2018-01-27 Thread Skidanov, Alexey
Hello, I enabled CMA global area to be 8GB. Immediately after boot, I'm able to allocate the really big contiguous chunks of memory (about 8GB). But several minutes after the boot, there is some degradation in an ability of CMA to allocate contiguous memory buffers: [ 2333.037004] cma: