#0  0x00007f7403dedec7 in semop () from /lib/libc.so.6
#1  0x00007f7405b77d91 in PGSemaphoreLock (sema=0x7f73ff6531d0, interruptOK=0 '\000') at pg_sema.c:421
#2  0x00007f7405bd4849 in LWLockAcquireCommon (val=<optimized out>, valptr=<optimized out>, mode=<optimized out>, l=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/storage/lmgr/lwlock.c:626
#3  LWLockAcquire (l=0x7f70ecaaa1a0, mode=LW_EXCLUSIVE) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/storage/lmgr/lwlock.c:467
#4  0x00007f7405a0dcca in AdvanceXLInsertBuffer (upto=<optimized out>, opportunistic=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/transam/xlog.c:2161
#5  0x00007f7405a0e301 in GetXLogBuffer (ptr=121713318928384) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/transam/xlog.c:1848
#6  0x00007f7405a0e9c9 in CopyXLogRecordToWAL (EndPos=<optimized out>, StartPos=<optimized out>, rdata=0x7ffff1c21b90, isLogSwitch=<optimized out>, write_len=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/transam/xlog.c:1494
#7  XLogInsert (rmid=<optimized out>, info=<optimized out>, rdata=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/transam/xlog.c:1200
#8  0x00007f74059df207 in _bt_insertonpg (rel=<optimized out>, buf=<optimized out>, cbuf=<optimized out>, stack=<optimized out>, itup=<optimized out>, newitemoff=<optimized out>, split_only_page=0 '\000') at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/nbtree/nbtinsert.c:911
#9  0x00007f74059e0e39 in _bt_doinsert (rel=0x7f70ec1cc980, itup=<optimized out>, checkUnique=<optimized out>, heapRel=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/nbtree/nbtinsert.c:191
#10 0x00007f74059e4840 in btinsert (fcinfo=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/nbtree/nbtree.c:251
#11 0x00007f7405ccc424 in FunctionCall6Coll (flinfo=0xfffffffffffffffc, collation=4056029632, arg1=<optimized out>, arg2=18446744073709551615, arg3=2, arg4=18160564840727824, arg5=140122974360512, arg6=1) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/utils/fmgr/fmgr.c:1437
#12 0x00007f74059ddc14 in index_insert (indexRelation=0x7f70ec1cc980, values=0x7ffff1c225c0, isnull=0x7ffff1c226c0 "", heap_t_ctid=0x7f740798680c, heapRelation=<optimized out>, checkUnique=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/index/indexam.c:226
#13 0x00007f7405af1b25 in ExecInsertIndexTuples (slot=<optimized out>, tupleid=<optimized out>, estate=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/executor/execUtils.c:1106
#14 0x00007f7405affcb3 in ExecInsert (canSetTag=<optimized out>, estate=<optimized out>, planSlot=<optimized out>, slot=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/executor/nodeModifyTable.c:274
#15 ExecModifyTable (node=0x7f740791cf68) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/executor/nodeModifyTable.c:1025
#16 0x00007f7405ae8058 in ExecProcNode (node=0x7f740791cf68) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/executor/execProcnode.c:377
#17 0x00007f7405ae69f7 in ExecutePlan (dest=<optimized out>, direction=<optimized out>, numberTuples=<optimized out>, sendTuples=<optimized out>, operation=<optimized out>, planstate=<optimized out>, estate=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/executor/execMain.c:1490
#18 standard_ExecutorRun (queryDesc=0x7f74079206e0, direction=-238937664, count=0) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/executor/execMain.c:319
#19 0x00007f7405be5eb4 in ProcessQuery (plan=0x7f74079ab610, sourceText=0x7f74079204c0 "   INSERT INTO measurement_events   (measurement_source_id, measurement_time, event_reception_time,          measurement_value, quality)   VALUES ($1, $2, $3, $4, $5)", params=<optimized out>, dest=0x7f74060b2f40, completionTag=0x7ffff1c22d10 "") at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/tcop/pquery.c:185
#20 0x00007f7405be60ee in PortalRunMulti (portal=0x7f74078d5c20, isTopLevel=1 '\001', dest=<optimized out>, altdest=<optimized out>, completionTag=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/tcop/pquery.c:1279
#21 0x00007f7405be69bd in PortalRun (portal=<optimized out>, count=<optimized out>, isTopLevel=-64 '\300', dest=<optimized out>, altdest=<optimized out>, completionTag=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/tcop/pquery.c:816
#22 0x00007f7405be49e8 in exec_execute_message (max_rows=140737249417664, portal_name=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/tcop/postgres.c:1957
#23 PostgresMain (argc=<optimized out>, argv=<optimized out>, dbname=0x7f740780a720 "ifms_db", username=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/tcop/postgres.c:4137
#24 0x00007f7405b8c0f5 in BackendRun (port=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/postmaster.c:4164
#25 BackendStartup (port=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/postmaster.c:3829
#26 ServerLoop () at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/postmaster.c:1597
#27 PostmasterMain (argc=<optimized out>, argv=<optimized out>) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/postmaster.c:1244
#28 0x00007f7405b1e474 in main (argc=5, argv=0x7f7407809910) at /tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/main/main.c:228
Detaching from program: /usr/lib/postgresql/9.4/bin/postgres, process 8276
