(gdb) thread apply all bt

Thread 2 (Thread 0x7f17c2875700 (LWP 12512)):
#0  0x00007f17c44fc89c in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f17c44f8080 in _L_lock_903 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f17c44f7f19 in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00000000004244e2 in Load (pModName=0x7f17c28749c0 "lmnsd_ptcp") at modules.c:782
#4  0x00000000004225b2 in UseObj (srcFile=0x7f17c2a7b405 "netstrms.c", pObjName=0x7f17c28749c2 "nsd_ptcp",
    pObjFile=0x7f17c28749c0 "lmnsd_ptcp", pIf=0x7f17bc002838) at obj.c:1157
#5  0x00007f17c2a7a4a5 in loadDrvr (pThis=0x7f17bc002800) at netstrms.c:81
#6  netstrmsConstructFinalize (pThis=0x7f17bc002800) at netstrms.c:126
#7  0x00000000004100ff in TCPSendInit (pvData=0xd5bcf0) at omfwd.c:333
#8  0x000000000041021f in doTryResume (pData=0xd5bcf0) at omfwd.c:393
#9  0x0000000000410550 in doAction (ppString=0xd5d390, iMsgOpts=<optimized out>, pData=0xd5bcf0) at omfwd.c:419
#10 0x0000000000437d9e in actionCallDoAction (pThis=0xd5be40, pMsg=0x7f17bc000980, actParams=0xd5d390) at ../action.c:831
#11 0x0000000000438208 in actionProcessMessage (actParams=0xd5d390, pbShutdownImmediate=<optimized out>, pMsg=0x7f17bc000980,
    pThis=0xd5be40) at ../action.c:878
#12 tryDoAction (pnElem=<synthetic pointer>, pBatch=0xd5d188, pAction=0xd5be40) at ../action.c:973
#13 submitBatch (pAction=0xd5be40, pBatch=0xd5d188, nElem=8) at ../action.c:1049
#14 0x000000000043869b in processAction (pBatch=0xd5d188, pAction=0xd5be40) at ../action.c:1139
#15 processBatchMain (pAction=0xd5be40, pBatch=0xd5d188, pbShutdownImmediate=<optimized out>) at ../action.c:1173
#16 0x000000000043165b in ConsumerReg (pThis=0xd5ce70, pWti=0xd5d160) at queue.c:1705
#17 0x000000000042b413 in wtiWorker (pThis=0xd5d160) at wti.c:315
#18 0x000000000042a68a in wtpWorker (arg=0xd5d160) at wtp.c:387
#19 0x00007f17c44f5e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#20 0x00007f17c3e16cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#21 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f17c4b37700 (LWP 12505)):
#0  0x00007f17c44fc89c in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f17c44f8080 in _L_lock_903 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f17c44f7f19 in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00000000004224d0 in UseObj (srcFile=0x7f17c1e7328f "imudp.c", pObjName=0x7f17c1e73288 "errmsg", pObjFile=0x0,
    pIf=0x7f17c2074100) at obj.c:1133
#4  0x00007f17c1e73039 in modInit (iIFVersRequested=<optimized out>, ipIFVersProvided=0xd5e2f0, pQueryEtryPt=0xd5e318,
    pHostQueryEtryPt=0x4249a0 <queryHostEtryPt>, pModInfo=<optimized out>) at imudp.c:663
#5  0x0000000000423f71 in doModInit (modInit=0x7f17c1e72f80 <modInit>, name=0x7fff6cb0eaa0 "imudp", pModHdlr=0xd61f10)
    at modules.c:432
#6  0x000000000042478f in Load (pModName=0x7fff6cb0eaa0 "imudp") at modules.c:899
#7  0x00000000004175af in doModLoad (pp=0x7fff6cb0ece8, pVal=<optimized out>) at conf.c:281
#8  0x0000000000435611 in cslchCallHdlr (ppConfLine=0x7fff6cb0ece8, pThis=<optimized out>) at cfsysline.c:724
#9  processCfSysLineCommand (pCmdName=<optimized out>, p=0x7fff6cb0ed28) at cfsysline.c:936
#10 0x00000000004165b1 in cfsysline (p=0x7fff6cb0ee29 "imudp") at conf.c:371
#11 0x0000000000416929 in cfline (line=0x7fff6cb0ee21 "ModLoad imudp", pfCurr=0x7fff6cb0ee10) at conf.c:1204
#12 0x00000000004170a5 in processConfFile (pConfFile=0xd4dd20 "/etc/rsyslog.d/04-open-sockets.conf") at conf.c:464
#13 0x0000000000417486 in doIncludeLine (pp=<optimized out>, pVal=<optimized out>) at conf.c:234
#14 0x0000000000435611 in cslchCallHdlr (ppConfLine=0x7fff6cb10958, pThis=<optimized out>) at cfsysline.c:724
#15 processCfSysLineCommand (pCmdName=<optimized out>, p=0x7fff6cb10998) at cfsysline.c:936
#16 0x00000000004165b1 in cfsysline (p=0x7fff6cb10a9f "/etc/rsyslog.d/*.conf") at conf.c:371
#17 0x0000000000416929 in cfline (line=0x7fff6cb10a91 "IncludeConfig /etc/rsyslog.d/*.conf", pfCurr=0x7fff6cb10a80) at conf.c:1204
#18 0x00000000004170a5 in processConfFile (pConfFile=0x441ee6 "/etc/rsyslog.conf") at conf.c:464
#19 0x000000000040a9c3 in init () at syslogd.c:1620
#20 0x000000000040dfce in mainThread () at syslogd.c:2179
#21 realMain (argc=<optimized out>, argv=<optimized out>) at syslogd.c:2907
#22 0x00007f17c3d4476d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#23 0x000000000040af39 in _start ()