From dc26283463c191d2b892dedf1b31771ba9d11ca6 Mon Sep 17 00:00:00 2001
From: Christian Heinrich <franz-christian.heinrich@inria.fr>
Date: Wed, 26 Apr 2017 13:27:56 +0200
Subject: [PATCH] [SMPI] Add errno and strerror to SMPI memory error msg

---
 src/smpi/smpi_memory.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/smpi/smpi_memory.cpp b/src/smpi/smpi_memory.cpp
index f21f5dcfaa..8091464761 100644
--- a/src/smpi/smpi_memory.cpp
+++ b/src/smpi/smpi_memory.cpp
@@ -101,7 +101,7 @@ void smpi_really_switch_data_segment(int dest)
   void* tmp =
       mmap(TOPAGE(smpi_start_data_exe), smpi_size_data_exe, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED, current, 0);
   if (tmp != TOPAGE(smpi_start_data_exe))
-    xbt_die("Couldn't map the new region");
+    xbt_die("Couldn't map the new region (errno %d): %s", errno, strerror(errno));
   smpi_loaded_page = dest;
 #endif
 }
-- 
2.20.1