``--socket-limit`` command-line option, for a simple way to limit maximum amount
of memory that can be used by DPDK application.
+.. warning::
+ Memory subsystem uses DPDK IPC internally, so memory allocations/callbacks
+ and IPC must not be mixed: it is not safe to allocate/free memory inside
+ memory-related or IPC callbacks, and it is not safe to use IPC inside
+ memory-related callbacks. See chapter
+ :ref:`Multi-process Support <Multi-process_Support>` for more details about
+ DPDK IPC.
+
+ Legacy memory mode
This mode is enabled by specifying ``--legacy-mem`` command-line switch to the