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-rw-r--r--erts/doc/src/erlang.xml30
1 files changed, 27 insertions, 3 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 92e979c046..e78ded4ae1 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -4174,9 +4174,16 @@ RealSystem = system + MissedSystem</code>
</item>
<tag><c>badarg</c></tag>
<item>
- If the port driver so decides for any reason (probably
+ <p>If the port driver so decides for any reason (probably
something wrong with <c><anno>Operation</anno></c>
- or <c><anno>Data</anno></c>).
+ or <c><anno>Data</anno></c>).</p>
+ <warning>
+ <p>Do not call <c>port_call</c> with an unknown
+ <c><anno>Port</anno></c> identifier and expect <c>badarg</c>
+ exception. Any undefined behavior is possible (including node
+ crash) depending on how the port driver interprets the supplied
+ arguments.</p>
+ </warning>
</item>
</taglist>
</desc>
@@ -4266,6 +4273,11 @@ RealSystem = system + MissedSystem</code>
<p>If <c><anno>Data</anno></c> is an invalid I/O list.</p>
</item>
</taglist>
+ <warning>
+ <p>Do not send data to an unknown port. Any undefined behavior is
+ possible (including node crash) depending on how the port driver
+ interprets the data.</p>
+ </warning>
</desc>
</func>
@@ -4325,6 +4337,11 @@ RealSystem = system + MissedSystem</code>
a busy port.
</item>
</taglist>
+ <warning>
+ <p>Do not send data to an unknown port. Any undefined behavior is
+ possible (including node crash) depending on how the port driver
+ interprets the data.</p>
+ </warning>
</desc>
</func>
@@ -4429,6 +4446,13 @@ RealSystem = system + MissedSystem</code>
If the port driver so decides for any reason (probably
something wrong with <c><anno>Operation</anno></c> or
<c><anno>Data</anno></c>).
+ <warning>
+ <p>Do not call <c>port_control/3</c> with an unknown
+ <c><anno>Port</anno></c> identifier and expect <c>badarg</c>
+ exception. Any undefined behavior is possible (including node
+ crash) depending on how the port driver interprets the supplied
+ arguments.</p>
+ </warning>
</item>
</taglist>
</desc>
@@ -8363,7 +8387,7 @@ Metadata = #{ pid => pid(),
system time</seealso> that is used by the runtime system.</p>
<p>The list contains two-tuples with <c>Key</c>s
as first element, and <c>Value</c>s as second element. The
- order if these tuples is undefined. The following
+ order of these tuples is undefined. The following
tuples can be part of the list, but more tuples can be
introduced in the future:</p>
<taglist>