vrouter crash in contrail::sandesh::transport::TMemoryBuffer::~TMemoryBuffer

[vageesan]

vrouter crashed with following backtrace in solution test run.

3.0.2.0-26~juno

core file is in 10.84.5.112:/cs-shared/bugs/<bug-id>/

#0 0x00007f0bbb8accc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#0 0x00007f0bbb8accc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007f0bbb8b00d8 in __GI_abort () at abort.c:89
#2 0x00007f0bbb8e9394 in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f0bbb9f7b28 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#3 0x00007f0bbb8f566e in malloc_printerr (ptr=<optimized out>, str=0x7f0bbb9f7c58 "double free or corruption (out)", action=1) at malloc.c:4996
#4 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
#5 0x00000000011235ca in contrail::sandesh::transport::TMemoryBuffer::~TMemoryBuffer() ()
#6 0x0000000000829ffe in boost::detail::sp_counted_base::release() ()
#7 0x00000000010f00e6 in SandeshWriter::SendMsg(Sandesh*, bool) ()
#8 0x00000000010f0b28 in SandeshSession::SendMsg(SandeshElement) ()
#9 0x00000000010f16e0 in boost::detail::function::function_obj_invoker1<boost::_bi::bind_t<bool, boost::_mfi::mf1<bool, SandeshSession, SandeshElement>, boost::_bi::list2<boost::_bi::value<SandeshSession*>, boost::arg<1> > >, bool, SandeshElement>::invoke(boost::detail::function::function_buffer&, SandeshElement) ()
#10 0x00000000010cd6f0 in QueueTaskRunner<SandeshElement, WorkQueue<SandeshElement> >::Run() ()
#11 0x0000000001186b3c in TaskImpl::execute() ()
#12 0x00007f0bbc47bb3a in ?? () from /usr/lib/libtbb.so.2
#13 0x00007f0bbc477816 in ?? () from /usr/lib/libtbb.so.2
#14 0x00007f0bbc476f4b in ?? () from /usr/lib/libtbb.so.2
#15 0x00007f0bbc4730ff in ?? () from /usr/lib/libtbb.so.2
#16 0x00007f0bbc4732f9 in ?? () from /usr/lib/libtbb.so.2
#17 0x00007f0bbc697182 in start_thread (arg=0x7f0bafbfe700) at pthread_create.c:312
#18 0x00007f0bbb97047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111