diff --git a/docs/manual/CoreTasks/chmod.html b/docs/manual/CoreTasks/chmod.html
index a87dc70cf..fd176224d 100644
--- a/docs/manual/CoreTasks/chmod.html
+++ b/docs/manual/CoreTasks/chmod.html
@@ -26,6 +26,17 @@ specified using nested <fileset> or
Starting with Ant 1.6, this task also supports nested filelists.
+By default this task will use a single invocation of the underlying
+chmod command. If you are working on a large number of files this may
+result in a command line that is too long for your operating system.
+If you encounter such problems, you should set the maxparallel
+attribute of this task to a non-zero value. The number to use highly
+depends on the length of your file names (the depth of your directory
+tree) and your operating system, so you'll have to experiment a
+little. POSIX recommends command line length limits of at least 4096
+characters, this may give you an approximation for the number you
+could use as initial value for these experiments.
+
Parameters
diff --git a/docs/manual/OptionalTasks/attrib.html b/docs/manual/OptionalTasks/attrib.html
index 79235ac11..638861c8b 100644
--- a/docs/manual/OptionalTasks/attrib.html
+++ b/docs/manual/OptionalTasks/attrib.html
@@ -23,6 +23,14 @@ href="../CoreTypes/filelist.html">FileLists can be specified using
nested <fileset>, <dirset> and
<filelist> elements.
+By default this task will use a single invocation of the underlying
+attrib command. If you are working on a large number of files this
+may result in a command line that is too long for your operating
+system. If you encounter such problems, you should set the
+maxparallel attribute of this task to a non-zero value. The number to
+use highly depends on the length of your file names (the depth of your
+directory tree), so you'll have to experiment a little.
+
Parameters
diff --git a/docs/manual/OptionalTasks/chgrp.html b/docs/manual/OptionalTasks/chgrp.html
index ecfd2072c..f701fb54d 100644
--- a/docs/manual/OptionalTasks/chgrp.html
+++ b/docs/manual/OptionalTasks/chgrp.html
@@ -23,6 +23,17 @@ href="../CoreTypes/filelist.html">FileLists can be specified using
nested <fileset>, <dirset> and
<filelist> elements.
+By default this task will use a single invocation of the underlying
+chgrp command. If you are working on a large number of files this may
+result in a command line that is too long for your operating system.
+If you encounter such problems, you should set the maxparallel
+attribute of this task to a non-zero value. The number to use highly
+depends on the length of your file names (the depth of your directory
+tree) and your operating system, so you'll have to experiment a
+little. POSIX recommends command line length limits of at least 4096
+characters, this may give you an approximation for the number you
+could use as initial value for these experiments.
+
Parameters
diff --git a/docs/manual/OptionalTasks/chown.html b/docs/manual/OptionalTasks/chown.html
index 481b4dfb4..fd7c51c5f 100644
--- a/docs/manual/OptionalTasks/chown.html
+++ b/docs/manual/OptionalTasks/chown.html
@@ -24,6 +24,17 @@ nested <fileset>, <dirset> and
<filelist> elements.
+By default this task will use a single invocation of the underlying
+chown command. If you are working on a large number of files this may
+result in a command line that is too long for your operating system.
+If you encounter such problems, you should set the maxparallel
+attribute of this task to a non-zero value. The number to use highly
+depends on the length of your file names (the depth of your directory
+tree) and your operating system, so you'll have to experiment a
+little. POSIX recommends command line length limits of at least 4096
+characters, this may give you an approximation for the number you
+could use as initial value for these experiments.
+
Parameters