Comment 0 for bug 1572418

Agent crashed in PktFlowInfo::IngressProcess . Backtrace is as below

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/contrail-vrouter-agent'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000000000c383ad in ?? ()
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19-gdb.py", line 63, in <module>
    from libstdcxx.v6.printers import register_libstdcxx_printers
ImportError: No module named 'libstdcxx'
(gdb) bt
#0 0x0000000000c383ad in ?? ()
#1 0x0000000000c387b0 in ?? ()
#2 0x0000000000c3c354 in PktFlowInfo::IngressProcess(PktInfo const*, PktControlInfo*, PktControlInfo*) ()
#3 0x0000000000c3ce4e in PktFlowInfo::Process(PktInfo const*, PktControlInfo*, PktControlInfo*) ()
#4 0x0000000000c48ffd in FlowHandler::Run() ()
#5 0x0000000000c452d4 in Proto::ProcessProto(boost::shared_ptr<PktInfo>) ()
#6 0x0000000000c29e90 in FlowProto::FlowEventHandler(FlowEvent*, FlowTable*) ()
#7 0x0000000000c305af in QueueTaskRunner<FlowEvent*, WorkQueue<FlowEvent*> >::Run() ()
#8 0x000000000118b89c in TaskImpl::execute() ()
#9 0x00007fc2264e9b3a in ?? () from /usr/lib/libtbb.so.2
#10 0x00007fc2264e5816 in ?? () from /usr/lib/libtbb.so.2
#11 0x00007fc2264e4f4b in ?? () from /usr/lib/libtbb.so.2
#12 0x00007fc2264e10ff in ?? () from /usr/lib/libtbb.so.2
#13 0x00007fc2264e12f9 in ?? () from /usr/lib/libtbb.so.2
#14 0x00007fc226705182 in start_thread (arg=0x7fc21db9c700) at pthread_create.c:312
#15 0x00007fc2259de47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb)