From 70f23e475b23af25e2035e2b5cfe1f5a8a7ea9f9 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 20 Nov 2017 08:08:30 +0100
Subject: Clarify INTERNAL_ERROR_ARC4RANDOM_GETENTROPY_FAIL

Update #3239.
---
 c-user/fatal_error.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'c-user')

diff --git a/c-user/fatal_error.rst b/c-user/fatal_error.rst
index 396cb44..320227b 100644
--- a/c-user/fatal_error.rst
+++ b/c-user/fatal_error.rst
@@ -390,7 +390,8 @@ INTERNAL_ERROR_ILLEGAL_USE_OF_FLOATING_POINT_UNIT (38)
 
 INTERNAL_ERROR_ARC4RANDOM_GETENTROPY_FAIL (39)
     A :c:func:`getentropy` system call failed in one of the `ARC4RANDOM(3)
-    <https://man.openbsd.org/arc4random.3>`_ functions.
+    <https://man.openbsd.org/arc4random.3>`_ functions.  This fatal error can
+    only be fixed with a different implementation of :c:func:`getentropy`.
 
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