On 10/11/2016 04:50 PM, Ruchi Kandoi wrote: > Any process holding a reference to these buffers will keep the kernel from > reclaiming its backing pages. mm counters don't provide a complete picture of > these allocations, since they only account for pages that are mapped into a > process's address space. This problem is especially bad for systems like > Android that use dma-buf fds to share graphics and multimedia buffers between > processes: these allocations are often large, have complex sharing patterns, > and are rarely mapped into every process that holds a reference to them. What do you end up _doing_ with all this new information that you have here? You know which processes have "pinned" these shared buffers, and exported that information in /proc. But, then what? -- 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>