Cellular Network Infrastructure » Core Network (CN) » OsmoMSC

The following was observed while testing edge with single phone (no voice/sms traffic):

...
<001e> vlr_lu_fsm.c:201 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_P
RES_COMPL
<001e> vlr_lu_fsm.c:404 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_WAIT_SUB_PRES}: lu_compl_vlr_new_tmsi()
<001e> vlr_lu_fsm.c:413 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_WAIT_TM
SI_CNF
<000a> a_iface_bssap.c:699 Rx BSC DT: 01 00 02 05 9b
<001f> a_iface_bssap.c:91 Found A subscriber for conn_id 26
<000a> a_iface_bssap.c:680 BSC sends layer 3 dtap (conn_id=26)
<001e> vlr.c:941 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_NEW_TMSI_ACK
<001e> vlr_lu_fsm.c:1204 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_WAIT_TMSI_CNF}: Received Event LU_COMPL_VLR_E_NEW_
TMSI_ACK
<001e> vlr_lu_fsm.c:329 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_WAIT_TMSI_CNF}: state_chg to LU_COMPL_VLR_S_DONE
<001e> vlr_lu_fsm.c:363 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
<001e> vlr_lu_fsm.c:739 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
<001e> vlr_lu_fsm.c:739 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_DONE}: Removing from parent vlr_lu_fsm(1416361685)[
0x5592eb0160c0]
<001e> vlr_lu_fsm.c:739 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_DONE}: Freeing instance
<001e> fsm.c:287 lu_compl_vlr_fsm(1416361685)[0x5592eb015e60]{LU_COMPL_VLR_S_DONE}: Deallocated
<001e> vlr_lu_fsm.c:706 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_S_DONE
<000d> db.c:188 DBI: 1: near "AND": syntax error
<000d> backtrace.c:47 backtrace() returned 30 addresses
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0xe83f) [0x5592e93ba83f]
<000d> backtrace.c:57   /usr/lib/libdbi.so.1(_error_handler+0x183) [0x7fdf8fdb7100]
<000d> backtrace.c:57   /usr/lib/libdbi.so.1(dbi_conn_queryf+0x146) [0x7fdf8fdb6196]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0xfdd5) [0x5592e93bbdd5]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0x1d61d) [0x5592e93c961d]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(osmo_signal_dispatch+0x3c) [0x7fdf90a62bec]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_state_chg+0x1a2) [0x7fdf90a65bb2]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0x21b54) [0x5592e93cdb54]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_dispatch+0x10f) [0x7fdf90a65dbf]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_state_chg+0x1a2) [0x7fdf90a65bb2]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_dispatch+0x10f) [0x7fdf90a65dbf]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_state_chg+0x1a2) [0x7fdf90a65bb2]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_dispatch+0x10f) [0x7fdf90a65dbf]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_dispatch+0x10f) [0x7fdf90a65dbf]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0x17103) [0x5592e93c3103]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0x214dd) [0x5592e93cd4dd]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0xdd83) [0x5592e93b9d83]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0xb3dc) [0x5592e93b73dc]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(_osmo_fsm_inst_dispatch+0x10f) [0x7fdf90a65dbf]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmo-sigtran.so.0(+0x11195) [0x7fdf901db195]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmo-sigtran.so.0(+0xee03) [0x7fdf901d8e03]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmo-sigtran.so.0(+0x11cd5) [0x7fdf901dbcd5]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmo-sigtran.so.0(+0x9933) [0x7fdf901d3933]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmo-sigtran.so.0(+0x14cd3) [0x7fdf901decd3]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmonetif.so.4(+0x8873) [0x7fdf8f233873]
<000d> backtrace.c:57   /usr/lib/x86_64-linux-gnu/libosmocore.so.9(osmo_select_main+0x21f) [0x7fdf90a6294f]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0xa96c) [0x5592e93b696c]
<000d> backtrace.c:57   /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7fdf8f9f21c1]
<000d> backtrace.c:57   ./src/osmo-msc/osmo-msc(+0xabda) [0x5592e93b6bda]
<001e> subscr_conn.c:243 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
<001e> subscr_conn.c:243 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(1416361685)[0x5592eb015f90]
<001e> vlr_lu_fsm.c:1361 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
<001e> subscr_conn.c:243 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_DONE}: Freeing instance
<001e> fsm.c:287 vlr_lu_fsm(1416361685)[0x5592eb0160c0]{VLR_ULA_S_DONE}: Deallocated
<000a> a_iface.c:428 Sending clear command to BSC (conn_id=26)
<000a> a_iface_bssap.c:699 Rx BSC DT: 00 01 21
<000a> a_iface_bssap.c:629 Rx MSC DT1 BSSMAP CLEAR COMPLETE
<000a> a_iface_bssap.c:261 Releasing connection (conn_id=26)

Not sure how to reproduce this reliably, but this should be investigated by someone with more experience with OsmoMSC codebase.