[docs 3/5] c-user: INTERNAL_ERROR_NO_MEMORY_FOR_IDLE_TASK_STACK

[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 3bc170f..6b47ab3 100644
--- a/c-user/fatal-error/background.rst
+++ b/c-user/fatal-error/background.rst
@@ -361,3 +361,8 @@ INTERNAL_ERROR_RTEMS_INIT_TASK_CONSTRUCT_FAILED (42)
     The construction of the RTEMS initialization task failed.  This fatal error
     may occur during system initialization.  It is an application configuration
     error.
+
+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.
-- 
2.35.3