Merge pull request #69589 from oomichi/issue/69588

Add the existence check of /proc/net/nf_conntrack

test/e2e/framework/util.go

@@ -3419,8 +3419,8 @@ func IssueSSHCommandWithResult(cmd, provider string, node *v1.Node) (*SSHResult,
 	LogSSHResult(result)
 
 	if result.Code != 0 || err != nil {
-		return nil, fmt.Errorf("failed running %q: %v (exit code %d)",
-			cmd, err, result.Code)
+		return nil, fmt.Errorf("failed running %q: %v (exit code %d, stderr %v)",
+			cmd, err, result.Code, result.Stderr)
 	}
 
 	return &result, nil