--- a/doc/sbcl.1
+++ b/doc/sbcl.1
@@ -61,7 +61,10 @@
 under Emacs. The Emacs "ilisp" mode provides many convenient features,
 like command line editing, tab completion, and various kinds of
 coupling between Common Lisp source files and the interactive SBCL
+subprocess, but can be somewhat fragile because it tries to be so
+clever and intimate in its interactions with the Lisp subprocess. In
+case of ilisp problems, running SBCL in the Emacs "shell" mode can a
+useful substitute.