Comment 1 for bug 1428975

[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 0x0000000000c03c7b in ProuterUveTable::EnqueueProuterMsg(PhysicalDevice const*) ()
(gdb) bt
#0 0x0000000000c03c7b in ProuterUveTable::EnqueueProuterMsg(PhysicalDevice const*) ()
#1 0x0000000000c041c3 in ProuterUveTable::AddLogicalInterface(Interface const*, LogicalInterface const*) ()
#2 0x0000000000c044a8 in ProuterUveTable::InterfaceNotify(DBTablePartBase*, DBEntryBase*) ()
#3 0x0000000000deb412 in DBTableBase::RunNotify(DBTablePartBase*, DBEntryBase*) ()
#4 0x0000000000ded268 in DBTablePartBase::RunNotify() ()
#5 0x0000000000dea0cd in DBPartition::QueueRunner::Run() ()
#6 0x0000000000ed4b90 in TaskImpl::execute() ()
#7 0x00007fe8a816db3a in ?? () from /usr/lib/libtbb.so.2
#8 0x00007fe8a8169816 in ?? () from /usr/lib/libtbb.so.2
#9 0x00007fe8a8168f4b in ?? () from /usr/lib/libtbb.so.2
#10 0x00007fe8a81650ff in ?? () from /usr/lib/libtbb.so.2
#11 0x00007fe8a81652f9 in ?? () from /usr/lib/libtbb.so.2
#12 0x00007fe8a8389182 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007fe8a7661fbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
(gdb)