print errno number

sonic-net · Dec 20, 2017 · 44cf94f · 44cf94f
1 parent 446d36d
commit 44cf94f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/vslib/src/sai_vs_hostintf.cpp b/vslib/src/sai_vs_hostintf.cpp
@@ -202,7 +202,7 @@ void veth2tap_fun(std::shared_ptr<hostif_info_t> info)
 
         if (write(info->tapfd, buffer, size) < 0)
         {
-            SWSS_LOG_ERROR("failed to write to tap device %d", info->tapfd);
+            SWSS_LOG_ERROR("failed to write to tap device %d, errno %d", info->tapfd, errno);
             break;
         }
     }