diff --git a/man2/mmap.2 b/man2/mmap.2
index 1c1b73f6e..48f41db49 100644
--- a/man2/mmap.2
+++ b/man2/mmap.2
@@ -342,9 +342,17 @@ SVr4, POSIX.1b (formerly POSIX.4), 4.4BSD, SUSv2.
 SVr4 documents additional error codes ENXIO and ENODEV.
 SUSv2 documents additional error codes EMFILE and EOVERFLOW.
 .SH BUGS
-On Linux there are no guarantees like those suggested above
-under MAP_NORESERVE. By default, any process can be killed
+On Linux there are no guarantees like those suggested above under 
+.BR MAP_NORESERVE . 
+By default, any process can be killed
 at any moment when the system runs out of memory.
+
+In kernels before 2.6.7, the
+.B MAP_POPULATE
+flag only has effect if
+.I prot
+is specified as
+.BR PROT_NONE .
 .SH "SEE ALSO"
 .BR getpagesize (2),
 .BR mlock (2),