fix release upon IMSI Detach

In case of an IMSI Detach, we don't have a conn_fsm, yet we still need to send
release messages. Hence directly release the conn in msc_subscr_conn_close()
when there is no conn_fsm present.

Move the conn release actions from the conn_fsm cleanup function to new
function msc_subscr_conn_release_all(). From the FSM cleanup, call
msc_subscr_conn_close(), and invoke msc_subscr_conn_release_all() from there.

Document msc_subscr_conn_close() behavior.

Change-Id: Ied6981099605ad803f8ffed38f23ed8203a97727

11 files changed, 161 insertions, 37 deletions

diff --git a/openbsc/src/libmsc/osmo_msc.c b/openbsc/src/libmsc/osmo_msc.c
index 2b91f010e..1429ca988 100644
--- a/openbsc/src/libmsc/osmo_msc.c
+++ b/openbsc/src/libmsc/osmo_msc.c
@@ -262,8 +262,35 @@ struct bsc_api *msc_bsc_api() {
 	return &msc_handler;
 }
 
-/* Signal the connection's FSM to gracefully terminate the connection by a
- * SUBSCR_CONN_E_CN_CLOSE event.
+void msc_subscr_conn_release_all(struct gsm_subscriber_connection *conn, uint32_t cause)
+{
+	if (conn->in_release)
+		return;
+	conn->in_release = true;
+
+	/* If we're closing in a middle of a trans, we need to clean up */
+	trans_conn_closed(conn);
+
+	switch (conn->via_ran) {
+	case RAN_UTRAN_IU:
+		iu_tx_release(conn->iu.ue_ctx, NULL);
+		/* FIXME: keep the conn until the Iu Release Outcome is
+		 * received from the UE, or a timeout expires. For now, the log
+		 * says "unknown UE" for each release outcome. */
+		break;
+	case RAN_GERAN_A:
+		a_iface_tx_clear_cmd(conn);
+		break;
+	default:
+		LOGP(DMM, LOGL_ERROR, "%s: Unknown RAN type, cannot tx release/clear\n",
+		     vlr_subscr_name(conn->vsub));
+		break;
+	}
+}
+
+/* If the conn->conn_fsm is still present, dispatch SUBSCR_CONN_E_CN_CLOSE
+ * event to gracefully terminate the connection. If the conn_fsm is already
+ * cleared, call msc_subscr_conn_release_all() to take release actions.
  * \param cause  a GSM_CAUSE_* constant, e.g. GSM_CAUSE_AUTH_FAILED.
  */
 void msc_subscr_conn_close(struct gsm_subscriber_connection *conn,
@@ -279,8 +306,11 @@ void msc_subscr_conn_close(struct gsm_subscriber_connection *conn,
 	}
 	if (!conn->conn_fsm) {
 		DEBUGP(DMM, "msc_subscr_conn_close(vsub=%s, cause=%u): no conn fsm,"
-		       " ignore.\n",
+		       " releasing directly without release event.\n",
 		       vlr_subscr_name(conn->vsub), cause);
+		/* In case of an IMSI Detach, we don't have conn_fsm. Release
+		 * anyway to ensure a timely Iu Release / BSSMAP Clear. */
+		msc_subscr_conn_release_all(conn, cause);
 		return;
 	}
 	if (conn->conn_fsm->state == SUBSCR_CONN_S_RELEASED) {
diff --git a/openbsc/src/libmsc/subscr_conn.c b/openbsc/src/libmsc/subscr_conn.c
index 5219944d9..249de7ddf 100644
--- a/openbsc/src/libmsc/subscr_conn.c
+++ b/openbsc/src/libmsc/subscr_conn.c
@@ -225,25 +225,9 @@ static void subscr_conn_fsm_cleanup(struct osmo_fsm_inst *fi,
 
 	if (!conn)
 		return;
-
-	if (conn->in_release)
-		return;
-	conn->in_release = true;
 	conn->conn_fsm = NULL;
 
-	/* If we're closing in a middle of a trans, we need to clean up */
-	trans_conn_closed(conn);
-
-	if (conn->via_ran == RAN_UTRAN_IU)
-		iu_tx_release(conn->iu.ue_ctx, NULL);
-		/* FIXME: keep the conn until the Iu Release Outcome is
-		 * received from the UE, or a timeout expires. For now, the log
-		 * says "unknown UE" for each release outcome. */
-
-	/* Clear A-Interface connection */
-	if (conn->via_ran == RAN_GERAN_A)
-		a_iface_tx_clear_cmd(conn);
-
+	msc_subscr_conn_close(conn, cause);
 
 	msc_subscr_conn_put(conn);
 }
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_gsm_authen.err b/openbsc/tests/msc_vlr/msc_vlr_test_gsm_authen.err
index 2cff2981c..73fd5d131 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_gsm_authen.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_gsm_authen.err
@@ -149,6 +149,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -262,6 +263,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -408,6 +410,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -431,7 +434,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -622,6 +627,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -740,6 +746,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = O
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(50462976)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -886,6 +893,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = O
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(50462976)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1046,6 +1054,7 @@ DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(5046
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1075,7 +1084,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1264,6 +1275,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1291,7 +1303,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1511,6 +1525,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1538,7 +1553,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1679,6 +1696,7 @@ DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 0
@@ -1792,6 +1810,7 @@ DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 1
@@ -1938,6 +1957,7 @@ DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 1
@@ -1961,7 +1981,9 @@ DMM IMSI DETACH for MSISDN:42342
 DREF VLR subscr MSISDN:42342 usage decreases to: 1
 DREF VLR subscr MSISDN:42342 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:42342
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_gsm_ciph.err b/openbsc/tests/msc_vlr/msc_vlr_test_gsm_ciph.err
index da8c5fe16..469bd816d 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_gsm_ciph.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_gsm_ciph.err
@@ -149,6 +149,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -279,6 +280,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -442,6 +444,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -465,7 +468,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -657,6 +662,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -792,6 +798,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = O
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(50462976)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -955,6 +962,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = O
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(50462976)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -978,7 +986,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1167,6 +1177,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1194,7 +1205,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1385,6 +1398,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -1409,7 +1423,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1629,6 +1645,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1656,7 +1673,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_hlr_reject.err b/openbsc/tests/msc_vlr/msc_vlr_test_hlr_reject.err
index 7ae371b8e..4b16ac113 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_hlr_reject.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_hlr_reject.err
@@ -55,6 +55,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
@@ -130,6 +131,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
@@ -282,6 +284,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -429,6 +432,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -581,6 +585,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -654,6 +659,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -806,6 +812,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -880,6 +887,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -954,6 +962,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
@@ -1032,6 +1041,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
@@ -1131,6 +1141,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_hlr_timeout.err b/openbsc/tests/msc_vlr/msc_vlr_test_hlr_timeout.err
index e43766f0f..0fb328e30 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_hlr_timeout.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_hlr_timeout.err
@@ -63,6 +63,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
@@ -164,6 +165,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_ms_timeout.err b/openbsc/tests/msc_vlr/msc_vlr_test_ms_timeout.err
index 90f3228ac..5422bec3b 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_ms_timeout.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_ms_timeout.err
@@ -83,6 +83,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000004620, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF IMSI:901700000004620: MSC conn use - 1 == 0
@@ -234,6 +235,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -316,6 +318,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_WAIT_RESP}: Deallocated
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_no_authen.err b/openbsc/tests/msc_vlr/msc_vlr_test_no_authen.err
index 2940318a4..a2f001e42 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_no_authen.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_no_authen.err
@@ -102,6 +102,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -176,6 +177,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -284,6 +286,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -307,7 +310,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -451,6 +456,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -530,6 +536,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = O
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(50462976)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -637,6 +644,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = O
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(50462976)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -781,6 +789,7 @@ DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(5046
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -810,7 +819,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -952,6 +963,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -979,7 +991,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1145,6 +1159,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1173,7 +1188,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_reject_concurrency.err b/openbsc/tests/msc_vlr/msc_vlr_test_reject_concurrency.err
index a6ff7261b..ae3c87b78 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_reject_concurrency.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_reject_concurrency.err
@@ -63,6 +63,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=unknown, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF unknown: MSC conn use - 1 == 1
@@ -133,6 +134,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -256,6 +258,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -385,6 +388,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -509,6 +513,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -622,6 +627,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -699,6 +705,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -812,6 +819,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -891,6 +899,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1004,6 +1013,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -1091,6 +1101,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1202,6 +1213,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -1314,6 +1326,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1426,6 +1439,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -1554,6 +1568,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
@@ -1667,6 +1682,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -1778,6 +1794,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 1
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_rest.err b/openbsc/tests/msc_vlr/msc_vlr_test_rest.err
index 18db13134..d9da8ba5d 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_rest.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_rest.err
@@ -27,6 +27,8 @@ msc_subscr_conn_is_accepted() == true
 DMM Subscr_Conn(test){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_CN_CLOSE
 DMM Subscr_Conn(test){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(test){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DMM msc_subscr_conn_close(vsub=unknown, cause=2): no conn fsm, releasing directly without release event.
+DMM unknown: Unknown RAN type, cannot tx release/clear
 DREF unknown: MSC conn use - 1 == 0
 DRLL subscr unknown: Freeing subscriber connection
 DREF VLR subscr unknown usage decreases to: 0
@@ -67,6 +69,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000004620)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=unknown, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF unknown: MSC conn use - 1 == 1
@@ -185,6 +188,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -299,6 +303,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
@@ -323,7 +328,9 @@ DMM IMSI DETACH for MSISDN:46071
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -461,6 +468,7 @@ DVLR vlr_lu_fsm(591536962){VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(591
 DVLR vlr_lu_fsm(591536962){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(591536962){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(591536962){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:46071: MSC conn use - 1 == 0
diff --git a/openbsc/tests/msc_vlr/msc_vlr_test_umts_authen.err b/openbsc/tests/msc_vlr/msc_vlr_test_umts_authen.err
index 791bc8cbe..a40fbd7e8 100644
--- a/openbsc/tests/msc_vlr/msc_vlr_test_umts_authen.err
+++ b/openbsc/tests/msc_vlr/msc_vlr_test_umts_authen.err
@@ -163,6 +163,7 @@ DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 1
@@ -275,6 +276,7 @@ DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 1
@@ -422,6 +424,7 @@ DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 1
@@ -445,7 +448,9 @@ DMM IMSI DETACH for MSISDN:42342
 DREF VLR subscr MSISDN:42342 usage decreases to: 1
 DREF VLR subscr MSISDN:42342 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:42342
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Sending clear command to BSC (conn_id=0)
+
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -632,6 +637,7 @@ DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Iu Release --RAN_UTRAN_IU--> MS
 DREF MSISDN:42342: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Freeing instance
@@ -754,6 +760,7 @@ DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Iu Release --RAN_UTRAN_IU--> MS
 DREF MSISDN:42342: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Freeing instance
@@ -911,6 +918,7 @@ DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (ca
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Iu Release --RAN_UTRAN_IU--> MS
 DREF MSISDN:42342: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Freeing instance
@@ -933,7 +941,8 @@ DMM IMSI DETACH for MSISDN:42342
 DREF VLR subscr MSISDN:42342 usage decreases to: 1
 DREF VLR subscr MSISDN:42342 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:42342
-DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, ignore.
+DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- Iu Release --RAN_UTRAN_IU--> MS
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
   llist_count(&net->subscr_conns) == 0
@@ -1137,6 +1146,7 @@ DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Sending clear command to BSC (conn_id=0)
 
 DREF MSISDN:42342: MSC conn use - 1 == 1
@@ -1361,6 +1371,7 @@ DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Co
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=MSISDN:42342, cause=2): no conn fsm, releasing directly without release event.
 - Iu Release --RAN_UTRAN_IU--> MS
 DREF MSISDN:42342: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Freeing instance