Ceph » rgw

when testing unittest_rgw_lua --gtest_filter=TestRGWLua.LuaRuntimeLimit , ASan reports

Direct leak of 105 byte(s) in 1 object(s) allocated from:
    #0 0x7fc5f1921a2d in operator new(unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:86
    #1 0x563bd89144c7 in std::__new_allocator<char>::allocate(unsigned long, void const*) /usr/include/c++/15.1.1/bits/new_allocator.h:151
    #2 0x563bd89144c7 in std::allocator<char>::allocate(unsigned long) /usr/include/c++/15.1.1/bits/allocator.h:203
    #3 0x563bd89144c7 in std::allocator_traits<std::allocator<char> >::allocate(std::allocator<char>&, unsigned long) /usr/include/c++/15.1.1/bits/alloc_traits.h:614
    #4 0x563bd89144c7 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_allocate(std::allocator<char>&, unsigned long) /usr/include/c++/15.1.1/bits/basic_string.h:142
    #5 0x563bd89144c7 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_create(unsigned long&, unsigned long) /usr/include/c++/15.1.1/bits/basic_string.tcc:164
    #6 0x563bd896ae1b in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_mutate(unsigned long, unsigned long, char const*, unsigned long) /usr/include/c++/15.1.1/bits/basic_string.tcc:363
    #7 0x563bd896b256 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_append(char const*, unsigned long) /usr/include/c++/15.1.1/bits/basic_string.tcc:455
    #8 0x563bd896b2bb in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::append(char const*) /usr/include/c++/15.1.1/bits/basic_string.h:1585
    #9 0x563bd943c2f2 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > std::operator+<char, std::char_traits<char>, std::allocator<char> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, char const*) /usr/include/c++/15.1.1/bits/basic_string.h:3977
    #10 0x563bd943c2f2 in rgw::lua::lua_state_guard::runtime_hook(lua_State*, lua_Debug*) /home/kefu/dev/ceph/src/rgw/rgw_lua_utils.cc:245
    #11 0x7fc5f139f8ef  (/usr/lib/liblua.so.5.4+0xe8ef) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #12 0x7fc5f139fbfe  (/usr/lib/liblua.so.5.4+0xebfe) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #13 0x7fc5f13b26fe  (/usr/lib/liblua.so.5.4+0x216fe) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #14 0x7fc5f139f581  (/usr/lib/liblua.so.5.4+0xe581) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #15 0x7fc5f139b735  (/usr/lib/liblua.so.5.4+0xa735) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #16 0x7fc5f139ba8f  (/usr/lib/liblua.so.5.4+0xaa8f) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #17 0x7fc5f139f696 in lua_pcallk (/usr/lib/liblua.so.5.4+0xe696) (BuildId: b7533e2973d4b0d82e10fc29973ec5a8d355d2b8)
    #18 0x563bd8a925ef in rgw::lua::request::execute(rgw::sal::Driver*, RGWREST*, OpsLogSink*, req_state*, RGWOp*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) /home/kefu/dev/ceph/src/rgw/rgw_lua_request.cc:824
    #19 0x563bd8952e3d in TestRGWLua_LuaRuntimeLimit_Test::TestBody() /home/kefu/dev/ceph/src/test/rgw/test_rgw_lua.cc:1628
    #20 0x563bd8a37817 in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /home/kefu/dev/ceph/src/googletest/googletest/src/gtest.cc:2653
    #21 0x563bd8a509b5 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (/home/kefu/dev/ceph/build/bin/unittest_rgw_lua+0x11199b5) (BuildId: b2628caba5290d882d25f7bea166f058b682bc85)`

the leaks happens not only in test but also in production, if the time limit is breached.