diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 466c92982d6..73d583648f6 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2004-11-08  Randolph Chung  <tausq@debian.org>
+
+	* gdb.texinfo (inferior_debugging info): Document "set debug infrun"
+	and "show debug infrun".  Add index entries.
+
 2004-10-23  Eli Zaretskii  <eliz@gnu.org>
 
 	* gdb.texinfo (SVR4 Process Information): Document subcommands of
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index b78e7b77d87..cabcbce2f7a 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -13879,6 +13879,13 @@ default is off.
 @item show debug frame
 Displays the current state of displaying @value{GDBN} frame debugging
 info.
+@item set debug infrun
+@cindex inferior debugging info
+Turns on or off display of @value{GDBN} debugging info for running the inferior.
+The default is off.  @file{infrun.c} contains GDB's runtime state machine used 
+for implementing operations such as single-stepping the inferior.
+@item show debug infrun
+Displays the current state of @value{GDBN} inferior debugging.
 @item set debug observer
 @cindex observer debugging info
 Turns on or off display of @value{GDBN} observer debugging.  This