cosmetic: rename conn_fsm "bump" event to "release_when_unused"

The naming of "bump" was short and made sense to me at the time of writing, but
it is keeping pretty much everyone else at a distance, no-one intuitively gets
what it is supposed to mean.

Clarify by renaming to "release_when_unused".

Adjust test expectations.

Change-Id: I4dcc55f536f63b13a3da29fff1df5fe16751f83a

1 files changed, 68 insertions, 68 deletions

diff --git a/tests/msc_vlr/msc_vlr_test_gsm_ciph.err b/tests/msc_vlr/msc_vlr_test_gsm_ciph.err
index 49c00ec36..2d60ae9a7 100644
--- a/tests/msc_vlr/msc_vlr_test_gsm_ciph.err
+++ b/tests/msc_vlr/msc_vlr_test_gsm_ciph.err
@@ -27,7 +27,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000004026f0
 DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
@@ -67,7 +67,7 @@ DMM -> CIPHER MODE COMMAND IMSI:901700000004620
 - ...perm algo: 2
 - ...key: 61855fb81fc2a800
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_WAIT_CIPH
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - dtap == 1 (0x4)
   lu_result_sent == 0
 - needs ciph, not yet accepted
@@ -145,8 +145,8 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -195,7 +195,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_WAIT_RESP}: got auth tuple: us
 - ...rand=12aca96fb4ffdea5c985cbafa9b6e18b
 - ...expecting sres=20bde240
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - compl_l3 == 1 (0x4)
   auth_request_sent == 1
   cm_service_result_sent == 0
@@ -234,7 +234,7 @@ DMSC CLASSMARK 1 unknown, assuming MS supports A5/1
 - ...perm algo: 2
 - ...key: 07fa7502e07e1c00
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_WAIT_AUTH}: state_chg to PR_ARQ_S_WAIT_CIPH
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - dtap == 1 (0x4)
   cm_service_result_sent == 0
   cipher_mode_cmd_sent == 1
@@ -265,8 +265,8 @@ DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_CM_SERVICE_REQ
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: received_cm_service_request = true
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: still awaiting first request after a CM Service Request
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: still awaiting first request after a CM Service Request
   cm_service_result_sent == 0
 - a USSD request is serviced
   expecting USSD:
@@ -282,8 +282,8 @@ DMM MSISDN:46071: MSISDN = 46071
 DMSC msc_tx 43 bytes to MSISDN:46071 via RAN_GERAN_A
 - DTAP --RAN_GERAN_A--> MS: NCSS:0x2a: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
 - DTAP matches expected message
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -345,7 +345,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_WAIT_RESP}: got auth tuple: us
 - ...rand=e7c03ba7cf0e2fde82b2dc4d63077d42
 - ...expecting sres=a29514ae
 DREF VLR subscr MSISDN:46071 usage decreases to: 4
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - compl_l3 == 1 (0x4)
   auth_request_sent == 1
 - needs auth, not yet accepted
@@ -383,7 +383,7 @@ DMSC CLASSMARK 1 unknown, assuming MS supports A5/1
 - ...perm algo: 2
 - ...key: e2b234f807886400
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_WAIT_AUTH}: state_chg to PR_ARQ_S_WAIT_CIPH
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - dtap == 1 (0x4)
   cipher_mode_cmd_sent == 1
 - needs ciph, not yet accepted
@@ -421,8 +421,8 @@ DMSC msc_tx 91 bytes to MSISDN:46071 via RAN_GERAN_A
 - DTAP --RAN_GERAN_A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 4
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: connection still has active transaction: SMS
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: connection still has active transaction: SMS
   dtap_tx_confirmed == 1
   paging_stopped == 1
 - SMS was delivered, no requests pending for subscr
@@ -437,8 +437,8 @@ DREF MSISDN:46071: MSC conn use + dtap == 3 (0x16)
 DRLL Dispatching 04.08 message SMS:0x04 (0x9:0x4)
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: bump: connection still has active transaction: SMS
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: connection still has active transaction: SMS
 DREF MSISDN:46071: MSC conn use - dtap == 2 (0x14)
   llist_count(&net->subscr_conns) == 1
 - MS also sends RP-ACK, MSC in turn sends CP-ACK for that
@@ -452,8 +452,8 @@ DMSC msc_tx 2 bytes to MSISDN:46071 via RAN_GERAN_A
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
 DREF MSISDN:46071: MSC conn use - trans_sms == 2 (0x6)
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -524,7 +524,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000004026f0
 DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
@@ -564,7 +564,7 @@ DMM -> CIPHER MODE COMMAND IMSI:901700000004620
 - ...perm algo: 2
 - ...key: 61855fb81fc2a800
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_WAIT_CIPH
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - dtap == 1 (0x4)
   lu_result_sent == 0
   auth_request_sent == 1
@@ -674,8 +674,8 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -729,7 +729,7 @@ DVLR VLR_Authenticate(50462976){VLR_SUB_AS_WAIT_RESP}: got auth tuple: use_count
 - ...rand=12aca96fb4ffdea5c985cbafa9b6e18b
 - ...expecting sres=20bde240
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - compl_l3 == 1 (0x4)
   auth_request_sent == 1
   cm_service_result_sent == 0
@@ -768,7 +768,7 @@ DMSC CLASSMARK 1 unknown, assuming MS supports A5/1
 - ...perm algo: 2
 - ...key: 07fa7502e07e1c00
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_WAIT_AUTH}: state_chg to PR_ARQ_S_WAIT_CIPH
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - dtap == 1 (0x4)
   cm_service_result_sent == 0
   cipher_mode_cmd_sent == 1
@@ -799,8 +799,8 @@ DMM Subscr_Conn(50462976){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEP
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_CM_SERVICE_REQ
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: received_cm_service_request = true
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: bump: still awaiting first request after a CM Service Request
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: still awaiting first request after a CM Service Request
   cm_service_result_sent == 0
 - a USSD request is serviced
   expecting USSD:
@@ -816,8 +816,8 @@ DMM MSISDN:46071: MSISDN = 46071
 DMSC msc_tx 43 bytes to MSISDN:46071 via RAN_GERAN_A
 - DTAP --RAN_GERAN_A--> MS: NCSS:0x2a: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
 - DTAP matches expected message
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -879,7 +879,7 @@ DVLR VLR_Authenticate(50462976){VLR_SUB_AS_WAIT_RESP}: got auth tuple: use_count
 - ...rand=e7c03ba7cf0e2fde82b2dc4d63077d42
 - ...expecting sres=a29514ae
 DREF VLR subscr MSISDN:46071 usage decreases to: 4
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - compl_l3 == 1 (0x4)
   auth_request_sent == 1
 - needs auth, not yet accepted
@@ -917,7 +917,7 @@ DMSC CLASSMARK 1 unknown, assuming MS supports A5/1
 - ...perm algo: 2
 - ...key: e2b234f807886400
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_WAIT_AUTH}: state_chg to PR_ARQ_S_WAIT_CIPH
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - dtap == 1 (0x4)
   cipher_mode_cmd_sent == 1
 - needs ciph, not yet accepted
@@ -955,8 +955,8 @@ DMSC msc_tx 91 bytes to MSISDN:46071 via RAN_GERAN_A
 - DTAP --RAN_GERAN_A--> MS: SMS:0x01: 09015801000791447758100650004c0005806470f1000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
 DREF VLR subscr MSISDN:46071 usage decreases to: 4
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: bump: connection still has active transaction: SMS
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: connection still has active transaction: SMS
   dtap_tx_confirmed == 1
   paging_stopped == 1
 - SMS was delivered, no requests pending for subscr
@@ -971,8 +971,8 @@ DREF MSISDN:46071: MSC conn use + dtap == 3 (0x16)
 DRLL Dispatching 04.08 message SMS:0x04 (0x9:0x4)
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: bump: connection still has active transaction: SMS
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: connection still has active transaction: SMS
 DREF MSISDN:46071: MSC conn use - dtap == 2 (0x14)
   llist_count(&net->subscr_conns) == 1
 - MS also sends RP-ACK, MSC in turn sends CP-ACK for that
@@ -986,8 +986,8 @@ DMSC msc_tx 2 bytes to MSISDN:46071 via RAN_GERAN_A
 DREF VLR subscr MSISDN:46071 usage decreases to: 3
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
 DREF MSISDN:46071: MSC conn use - trans_sms == 2 (0x6)
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1058,7 +1058,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000004026f0
 DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
@@ -1098,7 +1098,7 @@ DMM -> CIPHER MODE COMMAND IMSI:901700000004620
 - ...perm algo: 2
 - ...key: 61855fb81fc2a800
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_WAIT_CIPH
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - dtap == 1 (0x4)
   lu_result_sent == 0
 - needs ciph, not yet accepted
@@ -1205,8 +1205,8 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1282,7 +1282,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000004026f0
 DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
@@ -1322,7 +1322,7 @@ DMM -> CIPHER MODE COMMAND IMSI:901700000004620
 - ...perm algo: 2
 - ...key: 61855fb81fc2a800
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_WAIT_CIPH
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - dtap == 1 (0x4)
   cipher_mode_cmd_sent == 1
   cipher_mode_cmd_sent_with_imeisv == 1
@@ -1421,8 +1421,8 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1495,7 +1495,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000004026f0
 DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
@@ -1535,7 +1535,7 @@ DMM -> CIPHER MODE COMMAND IMSI:901700000004620
 - ...perm algo: 2
 - ...key: 61855fb81fc2a800
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_WAIT_CIPH
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - dtap == 1 (0x4)
   lu_result_sent == 0
 - needs ciph, not yet accepted
@@ -1633,7 +1633,7 @@ DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: Received
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: lu_compl_vlr_new_tmsi()
 DVLR lu_compl_vlr_fsm(901700000004620){LU_COMPL_VLR_S_WAIT_IMEI_TMSI}: state_chg to LU_COMPL_VLR_S_WAIT_TMSI_CNF
 - sending LU Accept for MSISDN:46071, with TMSI 0x03020100
-DMM MSISDN:46071: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:46071: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:46071: MSC conn use - dtap == 1 (0x4)
 - a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl
   llist_count(&net->subscr_conns) == 1
@@ -1673,8 +1673,8 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: bump: releasing conn
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1750,7 +1750,7 @@ DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000000156f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000000156f0
 DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000010650: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000010650: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000010650: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends *UMTS AKA* Auth Req to MS
@@ -1791,7 +1791,7 @@ DMM -> CIPHER MODE COMMAND IMSI:901700000010650
 - ...perm algo: 2
 - ...key: 7a75f0ac9b844400
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_WAIT_CIPH
-DMM IMSI:901700000010650: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000010650: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000010650: MSC conn use - dtap == 1 (0x4)
   lu_result_sent == 0
 - MS sends Ciphering Mode Complete, VLR accepts and sends GSUP LU Req to HLR
@@ -1857,8 +1857,8 @@ DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: bump: releasing conn
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -1908,7 +1908,7 @@ DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: got auth tuple: us
 - ...autn=78cdd96c60840000322f421b3bb778b1
 - ...expecting res=ed3ebf9cb6ea48ed
 DREF VLR subscr MSISDN:42342 usage decreases to: 2
-DMM MSISDN:42342: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:42342: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:42342: MSC conn use - compl_l3 == 1 (0x4)
   cm_service_result_sent == 0
   auth_request_sent == 1
@@ -1947,7 +1947,7 @@ DMSC CLASSMARK 1 unknown, assuming MS supports A5/1
 - ...perm algo: 2
 - ...key: da149b11d473f400
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_WAIT_AUTH}: state_chg to PR_ARQ_S_WAIT_CIPH
-DMM MSISDN:42342: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:42342: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:42342: MSC conn use - dtap == 1 (0x4)
   cm_service_result_sent == 0
   cipher_mode_cmd_sent == 1
@@ -1967,8 +1967,8 @@ DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_CM_SERVICE_REQ
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: received_cm_service_request = true
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: bump: still awaiting first request after a CM Service Request
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: still awaiting first request after a CM Service Request
   cm_service_result_sent == 0
 - a USSD request is serviced
   expecting USSD:
@@ -1984,8 +1984,8 @@ DMM MSISDN:42342: MSISDN = 42342
 DMSC msc_tx 43 bytes to MSISDN:42342 via RAN_GERAN_A
 - DTAP --RAN_GERAN_A--> MS: NCSS:0x2a: 8b2a1c27a225020100302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d273104d36a3c91a0d
 - DTAP matches expected message
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -2048,7 +2048,7 @@ DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: got auth tuple: us
 - ...autn=53f3e5632b3d00008865dd54d49663f2
 - ...expecting res=86e848a9e7ad8cd5
 DREF VLR subscr MSISDN:42342 usage decreases to: 4
-DMM MSISDN:42342: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:42342: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:42342: MSC conn use - compl_l3 == 1 (0x4)
   auth_request_sent == 1
 - needs auth, not yet accepted
@@ -2086,7 +2086,7 @@ DMSC CLASSMARK 1 unknown, assuming MS supports A5/1
 - ...perm algo: 2
 - ...key: 26ec67fad3073000
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_WAIT_AUTH}: state_chg to PR_ARQ_S_WAIT_CIPH
-DMM MSISDN:42342: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM MSISDN:42342: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF MSISDN:42342: MSC conn use - dtap == 1 (0x4)
   cipher_mode_cmd_sent == 1
 - MS sends Ciphering Mode Complete, VLR accepts and sends pending SMS
@@ -2113,8 +2113,8 @@ DMSC msc_tx 91 bytes to MSISDN:42342 via RAN_GERAN_A
 - DTAP --RAN_GERAN_A--> MS: SMS:0x01: 09015801000791447758100650004c0005802443f2000007101000000000445079da1e1ee7416937485e9ea7c965373d1d6683c270383b3d0ed3d36ff71c949e83c22072799e9687c5ec32a81d96afcbf4b4fb0c7ac3e9e9b7db05
 - DTAP matches expected message
 DREF VLR subscr MSISDN:42342 usage decreases to: 4
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: bump: connection still has active transaction: SMS
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_release_when_unused: connection still has active transaction: SMS
   dtap_tx_confirmed == 1
   paging_stopped == 1
 - SMS was delivered, no requests pending for subscr
@@ -2129,8 +2129,8 @@ DREF MSISDN:42342: MSC conn use + dtap == 3 (0x16)
 DRLL Dispatching 04.08 message SMS:0x04 (0x9:0x4)
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: bump: connection still has active transaction: SMS
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: connection still has active transaction: SMS
 DREF MSISDN:42342: MSC conn use - dtap == 2 (0x14)
   llist_count(&net->subscr_conns) == 1
 - MS also sends RP-ACK, MSC in turn sends CP-ACK for that
@@ -2144,8 +2144,8 @@ DMSC msc_tx 2 bytes to MSISDN:42342 via RAN_GERAN_A
 DREF VLR subscr MSISDN:42342 usage decreases to: 3
 DREF VLR subscr MSISDN:42342 usage decreases to: 2
 DREF MSISDN:42342: MSC conn use - trans_sms == 2 (0x6)
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_BUMP
-DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: bump: releasing conn
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_RELEASE_WHEN_UNUSED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: subscr_conn_fsm_release_when_unused: releasing conn
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASED
 DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
 DVLR Process_Access_Request_VLR(901700000010650){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
@@ -2216,7 +2216,7 @@ DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: Received Event VL
 DVLR GSUP tx: 08010809710000004026f0
 GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000004026f0
 DVLR VLR_Authenticate(901700000004620){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
-DMM IMSI:901700000004620: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DMM IMSI:901700000004620: subscr_conn_release_when_unused: conn still being established (SUBSCR_CONN_S_NEW)
 DREF IMSI:901700000004620: MSC conn use - compl_l3 == 1 (0x4)
   lu_result_sent == 0
 - from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS