-from the kernel and protect it against being swapped to disk. On most
-systems, this requires that the pixie start with root privileges,
-although it will drop them as soon as it can (before parsing
-command-line options).
+from the kernel and protect it against being swapped to disk. On Linux
+and other systems with
+.B RLIMIT_MEMLOCK
+or similar, this should just work assuming that the limit is set
+sensibly. On other systems, this requires that the pixie start with
+root privileges, although it will drop them as soon as it can (before
+parsing command-line options, for example).