diff --git a/base/src/platform/_main.cc b/base/src/platform/_main.cc
index 82527ab644..a6120ef4ec 100644
--- a/base/src/platform/_main.cc
+++ b/base/src/platform/_main.cc
@@ -236,6 +236,12 @@ extern "C" int _main()
 	/* initialize exception handling */
 	init_exception_handling();
 
+	/*
+	 * We create the thread-context area as early as possible to prevent other
+	 * mappings from occupying the predefined virtual-memory region.
+	 */
+	env_context_area_rm_session();
+
 	/*
 	 * Trigger first exception. This step has two purposes.
 	 * First, it enables us to detect problems related to exception handling as
@@ -261,9 +267,6 @@ extern "C" int _main()
 
 	/* now, it is save to call printf */
 
-	/* create the thread context area RM session */
-	env_context_area_rm_session();
-
 	/* enable tracing support */
 	inhibit_tracing = false;