vlr_subscr: use osmo_use_count

Depends: Ife31e6798b4e728a23913179e346552a7dd338c0 (libosmocore)
Change-Id: Ib06d030e8464abe415ff597d462ed40eeddef475

1 files changed, 197 insertions, 197 deletions

diff --git a/tests/msc_vlr/msc_vlr_test_reject_concurrency.err b/tests/msc_vlr/msc_vlr_test_reject_concurrency.err
index 125d14f39..7dc039dbf 100644
--- a/tests/msc_vlr/msc_vlr_test_reject_concurrency.err
+++ b/tests/msc_vlr/msc_vlr_test_reject_concurrency.err
@@ -15,12 +15,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -52,7 +52,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + _lu_fsm_associate_vsub: now used by 2 (conn,_lu_fsm_associate_vsub)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: A Location Updating process is already pending for this subscriber. Aborting.
 - sending LU Reject for unknown, cause 22
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_DONE
@@ -60,7 +60,7 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Received Event
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_RELEASING
 DREF unknown: MSC conn use + release == 2 (0x101: compl_l3,release)
 - BSSAP Clear --GERAN-A--> MS
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DBSSAP RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_RELEASING}: internal error during Location Updating attempt
 DREF unknown: MSC conn use - compl_l3 == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -82,19 +82,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocate
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -108,7 +108,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -120,11 +120,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -139,7 +139,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
@@ -162,12 +162,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -202,19 +202,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -228,7 +228,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -240,11 +240,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -259,7 +259,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
@@ -282,12 +282,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -328,19 +328,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -354,7 +354,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -366,11 +366,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -385,7 +385,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
@@ -408,12 +408,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -448,19 +448,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -474,7 +474,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -486,11 +486,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -505,7 +505,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
@@ -530,12 +530,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -557,19 +557,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -583,7 +583,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -595,11 +595,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -614,7 +614,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -630,8 +630,8 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){P
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 2 (attached,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 3 (attached,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -648,7 +648,7 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CON
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + cm_service == 2 (0x9: compl_l3,cm_service)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: still awaiting first request after a CM Service Request
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 2 (attached,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x8: cm_service)
   cm_service_result_sent == 1
@@ -667,18 +667,18 @@ DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x8: cm_servic
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + dtap == 2 (0xa: dtap,cm_service)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 3 (attached,conn,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,conn,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 2 (conn,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 1 (conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 3 (0x10a: dtap,cm_service,release)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - cm_service == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 2 (conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 1 (conn)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -691,7 +691,7 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_S
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
@@ -716,12 +716,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -743,19 +743,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -769,7 +769,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -781,11 +781,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -800,7 +800,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -816,8 +816,8 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){P
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 2 (attached,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 3 (attached,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -834,7 +834,7 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CON
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + cm_service == 2 (0x9: compl_l3,cm_service)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: still awaiting first request after a CM Service Request
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 2 (attached,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x8: cm_service)
   cm_service_result_sent == 1
@@ -857,18 +857,18 @@ DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x8: cm_servic
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + dtap == 2 (0xa: dtap,cm_service)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 3 (attached,conn,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,conn,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 2 (conn,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 1 (conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 3 (0x10a: dtap,cm_service,release)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - cm_service == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 2 (conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 1 (conn)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -881,7 +881,7 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_S
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
@@ -906,12 +906,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -933,19 +933,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -959,7 +959,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -971,11 +971,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -990,7 +990,7 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
@@ -1006,8 +1006,8 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){P
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 2 (attached,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 3 (attached,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -1024,7 +1024,7 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CON
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + cm_service == 2 (0x9: compl_l3,cm_service)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: still awaiting first request after a CM Service Request
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 2 (attached,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x8: cm_service)
   cm_service_result_sent == 1
@@ -1044,8 +1044,8 @@ DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - cm_service == 0 (0x0: )
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   bssap_clear_sent == 1
 - all requests serviced, conn has been released
@@ -1058,7 +1058,7 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_S
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
@@ -1083,12 +1083,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -1110,19 +1110,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1136,7 +1136,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -1148,11 +1148,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -1167,17 +1167,17 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
 - an SMS is sent, MS is paged
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + _page: now used by 2 (attached,_page)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS-receiver: now used by 3 (attached,_page,SMS-receiver)
 DLSMS Going to send a MT SMS
 DCC (ti 00 sub IMSI-901700000004620:MSISDN-46071 callref 40000001) New transaction
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS: now used by 4 (attached,_page,SMS-receiver,SMS)
 DLSMS SMC(0) instance created for network
 DLSMS SMR(0) instance created for network.
 DLSMS SMR(0) message SM-RL-DATA_REQ received in state IDLE
@@ -1189,9 +1189,9 @@ DLSMS Initiating Paging procedure for IMSI-901700000004620:MSISDN-46071 due to M
 DMM Subscriber IMSI-901700000004620:MSISDN-46071 not paged yet, start paging.
   GERAN-A sends out paging request to IMSI 901700000004620, TMSI 0xffffffff, LAC 23
   strcmp(paging_expecting_imsi, imsi) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + Paging: now used by 5 (attached,_page,SMS-receiver,SMS,Paging)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - _page: now used by 4 (attached,SMS-receiver,SMS,Paging)
   paging_sent == 1
   paging_stopped == 0
 - MS replies with Paging Response, we deliver the SMS
@@ -1206,8 +1206,8 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_A
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 6
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 5 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 6 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -1232,10 +1232,10 @@ DLSMS GSM4.11 TX 09 01 58 01 00 07 91 44 77 58 10 06 50 00 4c 00 05 80 64 70 f1
 DMSC msc_tx 91 bytes to IMSI-901700000004620:MSISDN-46071 via GERAN-A
 - DTAP --GERAN-A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - Paging: now used by 5 (attached,SMS-receiver,SMS,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: connection still has active transaction: SMS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 4 (attached,SMS-receiver,SMS,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x20: trans_sms)
   dtap_tx_confirmed == 1
@@ -1281,21 +1281,21 @@ DLSMS SMR(0) message MNSMS-DATA-IND received in state WAIT_FOR_RP_ACK
 DLSMS SMR(0) RX SMS RP-ACK
 DLSMS SMR(0) new RP state WAIT_FOR_RP_ACK -> IDLE
 DLSMS RX SMS RP-ACK (MO)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS-receiver: now used by 3 (attached,SMS,conn)
 DLSMS SMR(0) TX: MNSMS-REL-REQ
 DLSMS SMC(0) message MNSMS-REL-REQ received in state MM_ESTABLISHED
 DLSMS SMC(0) new CP state MM_ESTABLISHED -> IDLE
 DLSMS Got MMSMS_REL_REQ, destroying transaction.
 DLSMS SMR(0) clearing SMR instance
 DLSMS SMC(0) clearing instance
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS: now used by 2 (attached,conn)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - trans_sms == 1 (0x2: dtap)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 0 (0x0: )
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   dtap_tx_confirmed == 1
   bssap_clear_sent == 1
@@ -1308,7 +1308,7 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGI
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
 - SMS is done
   llist_count(&net->ran_conns) == 0
@@ -1334,12 +1334,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -1361,19 +1361,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1387,7 +1387,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -1399,11 +1399,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -1418,17 +1418,17 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
 - an SMS is sent, MS is paged
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + _page: now used by 2 (attached,_page)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS-receiver: now used by 3 (attached,_page,SMS-receiver)
 DLSMS Going to send a MT SMS
 DCC (ti 00 sub IMSI-901700000004620:MSISDN-46071 callref 40000002) New transaction
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS: now used by 4 (attached,_page,SMS-receiver,SMS)
 DLSMS SMC(0) instance created for network
 DLSMS SMR(0) instance created for network.
 DLSMS SMR(0) message SM-RL-DATA_REQ received in state IDLE
@@ -1440,9 +1440,9 @@ DLSMS Initiating Paging procedure for IMSI-901700000004620:MSISDN-46071 due to M
 DMM Subscriber IMSI-901700000004620:MSISDN-46071 not paged yet, start paging.
   GERAN-A sends out paging request to IMSI 901700000004620, TMSI 0xffffffff, LAC 23
   strcmp(paging_expecting_imsi, imsi) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + Paging: now used by 5 (attached,_page,SMS-receiver,SMS,Paging)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - _page: now used by 4 (attached,SMS-receiver,SMS,Paging)
   paging_sent == 1
   paging_stopped == 0
 - MS replies with Paging Response, we deliver the SMS
@@ -1457,8 +1457,8 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_A
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 6
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 5 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 6 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -1483,10 +1483,10 @@ DLSMS GSM4.11 TX 09 01 58 01 00 07 91 44 77 58 10 06 50 00 4c 00 05 80 64 70 f1
 DMSC msc_tx 91 bytes to IMSI-901700000004620:MSISDN-46071 via GERAN-A
 - DTAP --GERAN-A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - Paging: now used by 5 (attached,SMS-receiver,SMS,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: connection still has active transaction: SMS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 4 (attached,SMS-receiver,SMS,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x20: trans_sms)
   dtap_tx_confirmed == 1
@@ -1538,14 +1538,14 @@ DLSMS SMR(0) message MNSMS-DATA-IND received in state WAIT_FOR_RP_ACK
 DLSMS SMR(0) RX SMS RP-ACK
 DLSMS SMR(0) new RP state WAIT_FOR_RP_ACK -> IDLE
 DLSMS RX SMS RP-ACK (MO)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS-receiver: now used by 3 (attached,SMS,conn)
 DLSMS SMR(0) TX: MNSMS-REL-REQ
 DLSMS SMC(0) message MNSMS-REL-REQ received in state MM_ESTABLISHED
 DLSMS SMC(0) new CP state MM_ESTABLISHED -> IDLE
 DLSMS Got MMSMS_REL_REQ, destroying transaction.
 DLSMS SMR(0) clearing SMR instance
 DLSMS SMC(0) clearing instance
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS: now used by 2 (attached,conn)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - trans_sms == 2 (0xa: dtap,cm_service)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x8: cm_service)
   dtap_tx_confirmed == 1
@@ -1557,18 +1557,18 @@ DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x8: cm_servic
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + dtap == 2 (0xa: dtap,cm_service)
 DRLL Dispatching 04.08 message GSM48_MT_MM_IMSI_DETACH_IND (0x5:0x1)
 DMM IMSI DETACH INDICATION: MI(IMSI)=901700000004620
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + gsm48_rx_mm_imsi_detach_ind: now used by 3 (attached,conn,gsm48_rx_mm_imsi_detach_ind)
 DMM IMSI DETACH for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (attached,conn,gsm48_rx_mm_imsi_detach_ind,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - attached: now used by 2 (conn,gsm48_rx_mm_imsi_detach_ind)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - gsm48_rx_mm_imsi_detach_ind: now used by 1 (conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_COMMUNICATING}: Received Event RAN_CONN_E_CN_CLOSE
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_COMMUNICATING}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 3 (0x10a: dtap,cm_service,release)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - cm_service == 2 (0x102: dtap,release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 2 (conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 1 (conn)
 - BSSAP Clear --GERAN-A--> MS
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 1 (0x100: release)
   bssap_clear_sent == 1
@@ -1581,7 +1581,7 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_S
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 0
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 0 (-)
 DREF freeing VLR subscr IMSI-901700000004620:MSISDN-46071
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:CM_SERVICE_REQ){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
@@ -1606,12 +1606,12 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Allocated
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:LU)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
-DREF VLR subscr unknown usage increases to: 1
+DREF VLR subscr unknown + _lu_fsm_associate_vsub: now used by 1 (_lu_fsm_associate_vsub)
 DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
 DVLR New subscr, IMSI: 901700000004620
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + conn: now used by 2 (_lu_fsm_associate_vsub,conn)
 DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_NEW}: Updated ID
-DREF VLR subscr IMSI-901700000004620 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (conn)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A-0:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
@@ -1633,19 +1633,19 @@ DMM RAN_conn(IMSI-901700000004620:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Awaiting
 - HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
 DVLR GSUP rx 17: 10010809710000004026f00804036470f1
-DREF VLR subscr IMSI-901700000004620 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR IMSI:901700000004620 has MSISDN:46071
-DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
+DVLR SUBSCR(IMSI-901700000004620:MSISDN-46071) VLR: update for IMSI=901700000004620 (MSISDN=46071)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIPH}: Updated ID
 DVLR GSUP tx: 12010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 1 (conn)
 <-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
   lu_result_sent == 0
 - HLR also sends GSUP _UPDATE_LOCATION_RESULT
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
 DVLR GSUP rx 11: 06010809710000004026f0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_gsupc_read_cb: now used by 2 (conn,vlr_gsupc_read_cb)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
@@ -1659,7 +1659,7 @@ DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_V
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
 - sending LU Accept for IMSI-901700000004620:MSISDN-46071
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + attached: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
 DVLR lu_compl_vlr_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){LU_COMPL_VLR_S_DONE}: Terminating in cascade, depth 2 (cause = OSMO_FSM_TERM_PARENT, caused by: upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU))
@@ -1671,11 +1671,11 @@ DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_AUTH_CIP
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_ACCEPTED}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 4 (conn,vlr_gsupc_read_cb,attached,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 3 (conn,vlr_gsupc_read_cb,attached)
 - BSSAP Clear --GERAN-A--> MS
 DVLR upd_hlr_vlr_fsm(IMSI-901700000004620:GERAN-A-0:LU){UPD_HLR_VLR_S_DONE}: Deallocated, including all deferred deallocations
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_gsupc_read_cb: now used by 2 (conn,attached)
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
   bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
@@ -1690,17 +1690,17 @@ DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}:
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){VLR_ULA_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:LU){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
   llist_count(&net->ran_conns) == 0
 ---
 - an SMS is sent, MS is paged
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + _page: now used by 2 (attached,_page)
   llist_count(&vsub->cs.requests) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS-receiver: now used by 3 (attached,_page,SMS-receiver)
 DLSMS Going to send a MT SMS
 DCC (ti 00 sub IMSI-901700000004620:MSISDN-46071 callref 40000003) New transaction
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + SMS: now used by 4 (attached,_page,SMS-receiver,SMS)
 DLSMS SMC(0) instance created for network
 DLSMS SMR(0) instance created for network.
 DLSMS SMR(0) message SM-RL-DATA_REQ received in state IDLE
@@ -1712,9 +1712,9 @@ DLSMS Initiating Paging procedure for IMSI-901700000004620:MSISDN-46071 due to M
 DMM Subscriber IMSI-901700000004620:MSISDN-46071 not paged yet, start paging.
   GERAN-A sends out paging request to IMSI 901700000004620, TMSI 0xffffffff, LAC 23
   strcmp(paging_expecting_imsi, imsi) == 0
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + Paging: now used by 5 (attached,_page,SMS-receiver,SMS,Paging)
   llist_count(&vsub->cs.requests) == 1
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - _page: now used by 4 (attached,SMS-receiver,SMS,Paging)
   paging_sent == 1
   paging_stopped == 0
 - MS replies with Paging Response, we deliver the SMS
@@ -1729,8 +1729,8 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_A
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: is child of RAN_conn(IMSI-901700000004620:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 5
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 6
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + proc_arq_vlr_fn_init: now used by 5 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + conn: now used by 6 (attached,SMS-receiver,SMS,Paging,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: Updated ID
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
@@ -1755,10 +1755,10 @@ DLSMS GSM4.11 TX 09 01 58 01 00 07 91 44 77 58 10 06 50 00 4c 00 05 80 64 70 f1
 DMSC msc_tx 91 bytes to IMSI-901700000004620:MSISDN-46071 via GERAN-A
 - DTAP --GERAN-A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 5
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - Paging: now used by 5 (attached,SMS-receiver,SMS,proc_arq_vlr_fn_init,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_NEW}: state_chg to RAN_CONN_S_ACCEPTED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: ran_conn_fsm_has_active_transactions: connection still has active transaction: SMS
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 4
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - proc_arq_vlr_fn_init: now used by 4 (attached,SMS-receiver,SMS,conn)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_ACCEPTED}: Received Event RAN_CONN_E_COMPLETE_LAYER_3
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - compl_l3 == 1 (0x20: trans_sms)
   dtap_tx_confirmed == 1
@@ -1802,21 +1802,21 @@ DLSMS SMR(0) message MNSMS-DATA-IND received in state WAIT_FOR_RP_ACK
 DLSMS SMR(0) RX SMS RP-ACK
 DLSMS SMR(0) new RP state WAIT_FOR_RP_ACK -> IDLE
 DLSMS RX SMS RP-ACK (MO)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 3
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS-receiver: now used by 3 (attached,SMS,conn)
 DLSMS SMR(0) TX: MNSMS-REL-REQ
 DLSMS SMC(0) message MNSMS-REL-REQ received in state MM_ESTABLISHED
 DLSMS SMC(0) new CP state MM_ESTABLISHED -> IDLE
 DLSMS Got MMSMS_REL_REQ, destroying transaction.
 DLSMS SMR(0) clearing SMR instance
 DLSMS SMC(0) clearing instance
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - SMS: now used by 2 (attached,conn)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - trans_sms == 1 (0x2: dtap)
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use - dtap == 0 (0x0: )
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: Received Event RAN_CONN_E_UNUSED
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_COMMUNICATING}: state_chg to RAN_CONN_S_RELEASING
 DREF IMSI-901700000004620:MSISDN-46071: MSC conn use + release == 1 (0x100: release)
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage increases to: 3
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 2
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 + vlr_subscr_cancel_attach_fsm: now used by 3 (attached,conn,vlr_subscr_cancel_attach_fsm)
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - vlr_subscr_cancel_attach_fsm: now used by 2 (attached,conn)
 - BSSAP Clear --GERAN-A--> MS
   dtap_tx_confirmed == 1
   bssap_clear_sent == 1
@@ -1829,7 +1829,7 @@ DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGI
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Removing from parent RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP)
 DVLR Process_Access_Request_VLR(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){PR_ARQ_S_DONE}: Deferring: will deallocate with RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP)
 DRLL IMSI-901700000004620:MSISDN-46071: Freeing RAN connection
-DREF VLR subscr IMSI-901700000004620:MSISDN-46071 usage decreases to: 1
+DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - conn: now used by 1 (attached)
 DMM RAN_conn(IMSI-901700000004620:MSISDN-46071:GERAN-A-0:PAGING_RESP){RAN_CONN_S_RELEASED}: Deallocated, including all deferred deallocations
 - SMS is done
   llist_count(&net->ran_conns) == 0