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-rw-r--r--lib/kernel/doc/src/heart.xml11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/kernel/doc/src/heart.xml b/lib/kernel/doc/src/heart.xml
index c587e39345..864f8facac 100644
--- a/lib/kernel/doc/src/heart.xml
+++ b/lib/kernel/doc/src/heart.xml
@@ -83,6 +83,17 @@
<c><![CDATA[SIGKILL]]></c>:</p>
<pre>
% <input>erl -heart -env HEART_KILL_SIGNAL SIGABRT ...</input></pre>
+ <p> If heart should <b>not</b> kill the Erlang runtime system, this can be indicated
+ using the environment variable <c><![CDATA[HEART_NO_KILL=TRUE]]></c>.
+ This can be useful if the command executed by heart takes care of this,
+ for example as part of a specific cleanup sequence.
+ If unset, or not set to <c><![CDATA[TRUE]]></c>, the default behaviour
+ will be to kill as described above.
+ </p>
+
+ <pre>
+% <input>erl -heart -env HEART_NO_KILL 1 ...</input></pre>
+
<p>Furthermore, <c><![CDATA[ERL_CRASH_DUMP_SECONDS]]></c> has the
following behavior on <c>heart</c>:</p>
<taglist>