When run ros2 python example, fastdds will stuck in asan in transport creating phrase.

[wddpfx]

If compile fastdds with asan, make fastdds as ros2 middleware, and run ros2 python example such as "examples_rclpy_minimal_publisher " package with environment "export LD_PRELOAD=/usr/lib/gcc/aarch64-linux-gnu/9/libasan.so", fastdds will stuck when create transport. Sometimes udp transport , sometimes SHM transport. Here is stack:

(gdb) bt
#0  0x0000ffffbb57160c in __sanitizer::atomic_load<__sanitizer::atomic_uint8_t> (mo=__sanitizer::memory_order_acquire, a=0xffffba5e3038)
    at ../../../../src/libsanitizer/sanitizer_common/sanitizer_atomic_clang_other.h:43
#1  __sanitizer::atomic_load<__sanitizer::atomic_uint8_t> (mo=__sanitizer::memory_order_acquire, a=0xffffba5e3038)
    at ../../../../src/libsanitizer/sanitizer_common/sanitizer_atomic_clang_other.h:24
#2  __asan::AsanThread::GetStackBounds (this=0xffffba5e3000) at ../../../../src/libsanitizer/asan/asan_thread.cc:162
#3  __asan::AsanThread::stack_top (this=this@entry=0xffffba5e3000) at ../../../../src/libsanitizer/asan/asan_thread.cc:178
#4  0x0000ffffbb56fadc in __asan_handle_no_return () at ../../../../src/libsanitizer/asan/asan_rtl.cc:542
#5  0x0000ffffbb4b26c4 in __interceptor___cxa_throw (a=0xffffb3d2d380, b=0xffffaa79e2a8 <typeinfo for std::system_error>, c=0xffffaa692ba0 <std::system_error::~system_error()>)
    at ../../../../src/libsanitizer/asan/asan_interceptors.cc:328
#6  0x0000ffffa254ee44 in void asio::detail::throw_exception<std::system_error>(std::system_error const&) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#7  0x0000ffffa2d305f8 in asio::detail::do_throw_error(std::error_code const&, char const*) [clone .isra.0] () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#8  0x0000ffffa2d49a1c in eprosima::fastdds::rtps::UDPv4Transport::OpenAndBindInputSocket(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, bool) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#9  0x0000ffffa2d985a8 in eprosima::fastdds::rtps::UDPTransportInterface::CreateInputChannelResource(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, eprosima::fastrtps::rtps::Locator_t const&, bool, unsigned int, eprosima::fastdds::rtps::TransportReceiverInterface*) ()
   from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#10 0x0000ffffa2dacfd8 in eprosima::fastdds::rtps::UDPTransportInterface::OpenAndBindInputSockets(eprosima::fastrtps::rtps::Locator_t const&, eprosima::fastdds::rtps::TransportReceiverInterface*, bool, unsigned int) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#11 0x0000ffffa2d45244 in eprosima::fastdds::rtps::UDPv4Transport::OpenInputChannel(eprosima::fastrtps::rtps::Locator_t const&, eprosima::fastdds::rtps::TransportReceiverInterface*, unsigned int) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#12 0x0000ffffa29aa324 in eprosima::fastrtps::rtps::ReceiverResource::ReceiverResource(eprosima::fastdds::rtps::TransportInterface&, eprosima::fastrtps::rtps::Locator_t const&, unsigned int) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#13 0x0000ffffa299e36c in eprosima::fastrtps::rtps::NetworkFactory::BuildReceiverResources(eprosima::fastrtps::rtps::Locator_t&, std::vector<std::shared_ptr<eprosima::fastrtps::rtps::ReceiverResource>, std::allocator<std::shared_ptr<eprosima::fastrtps::rtps::ReceiverResource> > >&, unsigned int) ()
   from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#14 0x0000ffffa29b45a4 in eprosima::fastrtps::rtps::RTPSParticipantImpl::createReceiverResources(eprosima::fastdds::rtps::LocatorList&, bool, bool) ()
   from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#15 0x0000ffffa29d10ac in eprosima::fastrtps::rtps::RTPSParticipantImpl::RTPSParticipantImpl(unsigned int, eprosima::fastrtps::rtps::RTPSParticipantAttributes const&, eprosima::fastrtps::rtps::GuidPrefix_t const&, eprosima::fastrtps::rtps::GuidPrefix_t const&, eprosima::fastrtps::rtps::RTPSParticipant*, eprosima::fastrtps::rtps::RTPSParticipantListener*) ()
   from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#16 0x0000ffffa2a053c4 in eprosima::fastrtps::rtps::RTPSDomainImpl::createParticipant(unsigned int, bool, eprosima::fastrtps::rtps::RTPSParticipantAttributes const&, eprosima::fastrtps::rtps::RTPSParticipantListener*) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#17 0x0000ffffa2c5091c in eprosima::fastdds::dds::DomainParticipantImpl::enable() () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#18 0x0000ffffa2c86008 in eprosima::fastdds::dds::DomainParticipant::enable() () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#19 0x0000ffffa2c12fcc in eprosima::fastdds::dds::DomainParticipantFactory::create_participant(unsigned int, eprosima::fastdds::dds::DomainParticipantQos const&, eprosima::fastdds::dds::DomainParticipantListener*, eprosima::fastdds::dds::StatusMask const&) () from /zeekr_plt/platform/ros/galactic/install/lib/libfastrtps.so.2.11
#20 0x0000ffffb40aa164 in rmw_fastrtps_shared_cpp::create_participant(char const*, unsigned long, rmw_security_options_t const*, bool, char const*, rmw_dds_common::Context*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
   from /zeekr_plt/platform/ros/galactic/install/lib/librmw_fastrtps_shared_cpp.so

Here is ros2 python example:

But if run ros2 c++ example, or make rti dds as ros2 middleware, there is not this problem.
Why ?