Branch b1_8_gate

b=16002
i=wangdi

Add regression test for bug 13913.

lustre/include/obd_support.h

@@ -249,6 +249,7 @@ extern unsigned int obd_alloc_fail_rate;
 #define OBD_FAIL_OBD_LOGD_NET            0x602
 #define OBD_FAIL_OBD_QC_CALLBACK_NET     0x603
 #define OBD_FAIL_OBD_DQACQ               0x604
+#define OBD_FAIL_OBD_LLOG_SETUP          0x605
 
 #define OBD_FAIL_TGT_REPLY_NET           0x700
 #define OBD_FAIL_TGT_CONN_RACE           0x701