diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 6fbd766289..a92080e414 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2004-03-09  Daniel Jacobowitz  <drow@mvista.com>
+
+	* gdb.texinfo (Debugging Output): Document values for "set debug
+	target".
+
 2004-02-28  Andrew Cagney  <cagney@redhat.com>
 
 	* gdb.texinfo (Contributors): Mention GDB 6.1 release engineer.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 77b96a067e..dac02de0ef 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -13434,7 +13434,9 @@ info.
 @item set debug target
 Turns on or off display of @value{GDBN} target debugging info. This info
 includes what is going on at the target level of GDB, as it happens. The
-default is off.
+default is 0.  Set it to 1 to track events, and to 2 to also track the
+value of large memory transfers.  Changes to this flag do not take effect
+until the next time you connect to a target or use the @code{run} command.
 @kindex show debug target
 @item show debug target
 Displays the current state of displaying @value{GDBN} target debugging