Vcenter-as-compute: Query-engine crashes @ std::string::compare

This seen on Vcenter-compute sanity R3.2 #33

[New LWP 16497]
[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-query-engine --conf_file /etc/contrail/contrail-query-engine.'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f1fc1783e7c in std::string::compare(std::string const&) const () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(gdb) bt
#0 0x00007f1fc1783e7c in std::string::compare(std::string const&) const () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#1 0x000000000050a140 in operator< <char, std::char_traits<char>, std::allocator<char> > (
    __rhs="default-domain:ctest-TestECMPwithSVMChangeIPv6-53059416:ctest-left_ctest-TestECMPwithSVMChangeIPv6-53059416-47773667", __lhs=...) at /usr/include/c++/4.8/bits/basic_string.h:2571
#2 operator()<std::basic_string<char> > (this=<optimized out>, rhs="default-domain:ctest-TestECMPwithSVMChangeIPv6-53059416:ctest-left_ctest-TestECMPwithSVMChangeIPv6-53059416-47773667",
    lhs=...) at /usr/include/boost/variant/variant.hpp:980
#3 operator()<std::basic_string<char> > (rhs_content="default-domain:ctest-TestECMPwithSVMChangeIPv6-53059416:ctest-left_ctest-TestECMPwithSVMChangeIPv6-53059416-47773667",
    this=<optimized out>) at /usr/include/boost/variant/variant.hpp:948
#4 internal_visit<std::basic_string<char> const> (operand="default-domain:ctest-TestECMPwithSVMChangeIPv6-53059416:ctest-left_ctest-TestECMPwithSVMChangeIPv6-53059416-47773667",
    this=0x7f1fb2bfa0b0) at /usr/include/boost/variant/variant.hpp:1017
#5 visitation_impl_invoke_impl<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::blank, std::basic_string<char>, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address>, boost::detail::variant::less_comp> >, void const*, std::basic_string<char> > (storage=0x7f1f8c014790,
    visitor=...) at /usr/include/boost/variant/detail/visitation_impl.hpp:130
#6 visitation_impl_invoke<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::blank, std::basic_string<char>, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address>, boost::detail::variant::less_comp> >, void const*, std::basic_string<char>, boost::variant<boost::blank, std::basic_string<char>, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address>::has_fallback_type_> (internal_which=1, t=0x0,
    storage=0x7f1f8c014790, visitor=...) at /usr/include/boost/variant/detail/visitation_impl.hpp:173
#7 boost::detail::variant::visitation_impl<mpl_::int_<0>, boost::detail::variant::visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<9l>, boost::blank, boost::mpl::l_item<mpl_::long_<8l>, std::string, boost::mpl::l_item<mpl_::long_<7l>, unsigned long, boost::mpl::l_item<mpl_::long_<6l>, unsigned int, boost::mpl::l_item<mpl_::long_<5l>, boost::uuids::uuid, boost::mpl::l_item<mpl_::long_<4l>, unsigned char, boost::mpl::l_item<mpl_::long_<3l>, unsigned short, boost::mpl::l_item<mpl_::long_<2l>, double, boost::mpl::l_item<mpl_::long_<1l>, boost::asio::ip::address, boost::mpl::l_end> > > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >, boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::blank, std::string, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>, boost::detail::variant::less_comp> >, void const*, boost::variant<boost::blank, std::string, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>::has_fallback_type_> (internal_which=internal_which@entry=1, logical_which=logical_which@entry=1, visitor=...,
    storage=storage@entry=0x7f1f8c014790, no_backup_flag=no_backup_flag@entry=...) at /usr/include/boost/variant/detail/visitation_impl.hpp:256
#8 0x000000000050790a in internal_apply_visitor_impl<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::blank, std::basic_string<char>, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address>, boost::detail::variant::less_comp> >, void const*> (storage=0x7f1f8c014790,
    visitor=..., logical_which=1, internal_which=1) at /usr/include/boost/variant/variant.hpp:2326
#9 internal_apply_visitor<boost::detail::variant::invoke_visitor<boost::detail::variant::comparer<boost::variant<boost::blank, std::basic_string<char>, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address>, boost::detail::variant::less_comp> > > (visitor=..., this=0x7f1f8c014788)
    at /usr/include/boost/variant/variant.hpp:2348
#10 apply_visitor<boost::detail::variant::comparer<boost::variant<boost::blank, std::basic_string<char>, unsigned long, unsigned int, boost::uuids::uuid, unsigned char, unsigned short, double, boost::asio::ip::address>, boost::detail::variant::less_comp> > (visitor=..., this=0x7f1f8c014788) at /usr/include/boost/variant/variant.hpp:2370
#11 operator< (rhs=..., this=0x7f1f8c050718) at /usr/include/boost/variant/variant.hpp:2284
#12 query_result_unit_t::operator< (this=this@entry=0x7f1f8c216320, rhs=...) at controller/src/query_engine/set_operation.cc:19
#13 0x000000000050892e in operator< (rhs=..., this=0x7f1f8c216320) at /usr/include/c++/4.8/bits/stl_algo.h:5892
#14 set_intersection<__gnu_cxx::__normal_iterator<query_result_unit_t*, std::vector<query_result_unit_t> >, __gnu_cxx::__normal_iterator<query_result_unit_t*, std::vector<query_result_unit_t> >, std::back_insert_iterator<std::vector<query_result_unit_t> > > (__result=..., __last2=..., __first2=..., __last1=..., __first1=...) at /usr/include/c++/4.8/bits/stl_algo.h:5894
#15 SetOperationUnit::op_and (qi="6cb21c1c-100a-11e7-b278-00000a540d20", res=std::vector of length 405, capacity 405 = {...}, inp=std::vector of length 2, capacity 2 = {...})
    at controller/src/query_engine/set_operation.cc:43
#16 0x000000000052abe6 in WhereQuery::subquery_processed (this=0x7f1f942d5270, subquery=<optimized out>) at controller/src/query_engine/where_query.cc:1101
#17 0x00000000004b673f in DbQueryUnit::WPCompleteCb (this=0x7f1f940e82e0, wp=0x7f1f94047250, ret_code=<optimized out>) at controller/src/query_engine/db_query.cc:252
#18 0x000000000048b97c in boost::function1<void, bool>::operator() (this=<optimized out>, a0=<optimized out>) at /usr/include/boost/function/function_template.hpp:767
#19 0x00000000004b9329 in WorkPipeline<DbQueryUnit::Input, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output>::NextStage<0, DbQueryUnit::Output> (this=0x7f1f94047250) at controller/src/base/work_pipeline-inl.h:191
#20 0x00000000004b9b5d in WorkPipeline<DbQueryUnit::Input, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output, DbQueryUnit::Output>::WorkStageCb (this=0x7f1f94047250, stage=1476403880, ret_code=24) at controller/src/base/work_pipeline-inl.h:148
---Type <return> to continue, or q <return> to quit---
#21 0x00000000004b7ba7 in operator() (a0=true, this=0x7f1f94047170) at /usr/include/boost/function/function_template.hpp:767
#22 WorkStage<DbQueryUnit::Input, DbQueryUnit::Output, std::vector<query_result_unit_t, std::allocator<query_result_unit_t> >, DbQueryUnit::Stage0Out>::Runner (this=0x7f1f94047160)
    at controller/src/base/work_pipeline-inl.h:75
#23 0x0000000000484159 in operator() (this=<optimized out>) at /usr/include/boost/function/function_template.hpp:767
#24 PipelineWorker::Run (this=<optimized out>) at controller/src/base/work_processor-inl.h:27
#25 0x000000000045c8ff in TaskImpl::execute (this=0x7f1fb9dc6740) at controller/src/base/task.cc:262
#26 0x00007f1fc1bf6b3a in ?? () from /usr/lib/libtbb.so.2
#27 0x00007f1fc1bf2816 in ?? () from /usr/lib/libtbb.so.2
#28 0x00007f1fc1bf1f4b in ?? () from /usr/lib/libtbb.so.2
#29 0x00007f1fc1bee0ff in ?? () from /usr/lib/libtbb.so.2
#30 0x00007f1fc1bee2f9 in ?? () from /usr/lib/libtbb.so.2
#31 0x00007f1fc1e12184 in start_thread (arg=0x7f1fb2bfb700) at pthread_create.c:312
#32 0x00007f1fc0ee337d in __ecvt_r (value=0, ndigit=0, decpt=0x0, sign=0x0, buf=0x7f1fb2bfb9c0 "\300\331\177\263\037\177", len=139774119622400) at efgcvt_r.c:218
#33 0x0000000000000000 in ?? ()
(gdb) quit
root@a6s32:~#
root@a6s32:~#
root@a6s32:~# ls -l /var/crashes/core.contrail-query-.15781.a6s32.1490302262
-rw------- 1 contrail contrail 259383296 Mar 23 13:51 /var/crashes/core.contrail-query-.15781.a6s32.1490302262
root@a6s32:~#