rados/test: adding debug message for forker task

Adding debug message in case fork failed and output the error message.

Signed-off-by: Nitzan Mordechai <nmordec@redhat.com>
(cherry picked from commit 9b1d1b1ef39d822cffa04ff349293e86f4f01085)

diff --git a/src/test/system/systest_runnable.cc b/src/test/system/systest_runnable.cc
index f7342aa7ded00a5727b6e2ea6d9fd926b5524b63..40f94c4036fb102fa6868137fa25b82d86dc96ef 100644 (file)
--- a/src/test/system/systest_runnable.cc
+++ b/src/test/system/systest_runnable.cc
@@ -97,8 +97,10 @@ start()
     #else
     std::string err_msg;
     ret = preforker.prefork(err_msg);
-    if (ret < 0)
-      preforker.exit(ret);
+    if (ret < 0) {
+      printf("prefork failed: %s\n", err_msg.c_str());
+      return ret;
+    }
 
     if (preforker.is_child()) {
       m_started = true;