[docs 4/5] c-user: INTERNAL_ERROR_IDLE_THREAD_CREATE_FAILED

[Sebastian Huber]

Document this fatal error.
---
 c-user/fatal-error/background.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/c-user/fatal-error/background.rst b/c-user/fatal-error/background.rst
index 6b47ab3..3c4212e 100644
--- a/c-user/fatal-error/background.rst
+++ b/c-user/fatal-error/background.rst
@@ -366,3 +366,8 @@ INTERNAL_ERROR_NO_MEMORY_FOR_IDLE_TASK_STACK (43)
     There was not enough memory available to allocate an IDLE task stack.  This
     fatal error may occur during system initialization.  It is an application
     configuration error.
+
+INTERNAL_ERROR_IDLE_THREAD_CREATE_FAILED (44)
+    The creation of an IDLE task failed.  This fatal error may occur during
+    system initialization.  It happens if a task create extension fails for an
+    IDLE task.
-- 
2.35.3