--- src/usr.bin/kdump/kdump.1	2006/06/01 18:18:00	1.3
+++ src/usr.bin/kdump/kdump.1	2006/07/20 22:57:47	1.4
@@ -70,7 +70,10 @@ more data.
 Display at most
 .Ar maxdata
 bytes when decoding
-.Tn I/O .
+.Tn I/O ;
+set to
+.Cm 0
+to disable the size limit.
 .It Fl p Ar pid
 Display only records for process
 .Ar pid .