ThreadSanitizer reports data race in LevelDB during sync

ethereum / aleth

Aleth – Ethereum C++ client, tools and libraries

GNU General Public License v3.0

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This can happen when commiting new state data to StateDB while preparing response to GetNodeDataPacket network message (looking up data in StateDB)

Data race is reported inside LevelDB, so I'm not sure yet what we should do

==================
WARNING: ThreadSanitizer: data race (pid=93740)
  Read of size 1 at 0x7b8000281001 by thread T5:
    #0 memcmp ??:? (eth+0x4bad02)
    #1 leveldb::Comparator::~Comparator() ??:? (libleveldb.so.1+0x37ced)
    #2 (anonymous namespace)::EthereumHostData::nodeData(dev::RLP const&) const /home/ethnode/cpp-ethereum/libethereum/EthereumHost.cpp:328 (eth+0x6fc045)
    #3 dev::eth::EthereumPeer::interpret(unsigned int, dev::RLP const&) /home/ethnode/cpp-ethereum/libethereum/EthereumPeer.cpp:371 (eth+0x71794e)
    #4 dev::p2p::Session::readPacket(unsigned short, dev::p2p::PacketType, dev::RLP const&) /home/ethnode/cpp-ethereum/libp2p/Session.cpp:126 (eth+0x9e855d)
    #5 operator() /home/ethnode/cpp-ethereum/libp2p/Session.cpp:384 (eth+0x9ee2c5)
    #6 boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>::operator()(boost::system::error_code const&, unsigned long, int) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/impl/read.hpp:282 (eth+0x9ee2c5)
    #7 boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>::operator()() /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/bind_handler.hpp:127 (eth+0x9ee94f)
    #8 void boost::asio::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long> >(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, ...) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/handler_invoke_hook.hpp:69 (eth+0x9ee94f)
    #9 void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>, {lambda(boost::system::error_code, unsigned long)#1}>(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, {lambda(boost::system::error_code, unsigned long)#1}&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/handler_invoke_helpers.hpp:37 (eth+0x9ee94f)
    #10 void boost::asio::detail::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, {lambda(boost::system::error_code, unsigned long)#1}>(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, {lambda(boost::system::error_code, unsigned long)#1}>*) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/impl/read.hpp:502 (eth+0x9ee94f)
    #11 void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/handler_invoke_helpers.hpp:37 (eth+0x9ee94f)
    #12 boost::asio::detail::reactive_socket_recv_op<boost::asio::mutable_buffers_1, boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}> >::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/reactive_socket_recv_op.hpp:110 (eth+0x9ee94f)
    #13 boost::asio::detail::task_io_service_operation::complete(boost::asio::detail::task_io_service&, boost::system::error_code const&, unsigned long) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/task_io_service_operation.hpp:38 (eth+0x995351)
    #14 boost::asio::detail::epoll_reactor::descriptor_state::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/impl/epoll_reactor.ipp:704 (eth+0x995351)
    #15 boost::asio::detail::task_io_service_operation::complete(boost::asio::detail::task_io_service&, boost::system::error_code const&, unsigned long) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/task_io_service_operation.hpp:38 (eth+0x98a321)
    #16 boost::asio::detail::task_io_service::do_run_one(boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex>&, boost::asio::detail::task_io_service_thread_info&, boost::system::error_code const&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/impl/task_io_service.ipp:372 (eth+0x98a321)
    #17 boost::asio::detail::task_io_service::run(boost::system::error_code&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/impl/task_io_service.ipp:149 (eth+0x989c70)
    #18 boost::asio::io_service::run() /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/impl/io_service.ipp:59 (eth+0x97571c)
    #19 dev::p2p::Host::doWork() /home/ethnode/cpp-ethereum/libp2p/Host.cpp:775 (eth+0x97571c)
    #20 dev::Worker::workLoop() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:140 (eth+0x8d346e)
    #21 operator() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:62 (eth+0x8d387b)
    #22 void std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::_M_invoke<>(std::_Index_tuple<>) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731 (eth+0x8d387b)
    #23 std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720 (eth+0x8d387b)
    #24 std::thread::_Impl<std::_Bind_simple<dev::Worker::startWorking()::$_0 ()> >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115 (eth+0x8d387b)
    #25 std::this_thread::__sleep_for(std::chrono::duration<long, std::ratio<1l, 1l> >, std::chrono::duration<long, std::ratio<1l, 1000000000l> >) ??:? (libstdc++.so.6+0xb1a5f)

  Previous write of size 1 at 0x7b8000281001 by thread T4:
    #0 memcpy ??:? (eth+0x48ed4c)
    #1 leveldb::MemTable::Add(unsigned long, leveldb::ValueType, leveldb::Slice const&, leveldb::Slice const&) ??:? (libleveldb.so.1+0x207dd)
    #2 dev::eth::Block::cleanup() /home/ethnode/cpp-ethereum/libethereum/Block.cpp:900 (eth+0x5c7693)
    #3 dev::eth::BlockChain::import(dev::eth::VerifiedBlockRef const&, dev::OverlayDB const&, bool) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:698 (eth+0x61cbd9)
    #4 dev::eth::BlockChain::sync(dev::eth::BlockQueue&, dev::OverlayDB const&, unsigned int) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:465 (eth+0x619baa)
    #5 dev::eth::Client::syncBlockQueue() /home/ethnode/cpp-ethereum/libethereum/Client.cpp:395 (eth+0x6c673c)
    #6 dev::eth::Client::doWork(bool) /home/ethnode/cpp-ethereum/libethereum/Client.cpp:665 (eth+0x6c177a)
    #7 dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:250 (eth+0x6d91d5)
    #8 non-virtual thunk to dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:? (eth+0x6d91d5)
    #9 dev::Worker::workLoop() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:140 (eth+0x8d346e)
    #10 operator() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:62 (eth+0x8d387b)
    #11 void std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::_M_invoke<>(std::_Index_tuple<>) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731 (eth+0x8d387b)
    #12 std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720 (eth+0x8d387b)
    #13 std::thread::_Impl<std::_Bind_simple<dev::Worker::startWorking()::$_0 ()> >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115 (eth+0x8d387b)
    #14 std::this_thread::__sleep_for(std::chrono::duration<long, std::ratio<1l, 1l> >, std::chrono::duration<long, std::ratio<1l, 1000000000l> >) ??:? (libstdc++.so.6+0xb1a5f)

  Location is heap block of size 4096 at 0x7b8000281000 allocated by thread T4:
    #0 operator new[](unsigned long) ??:? (eth+0x5191d3)
    #1 leveldb::Arena::AllocateNewBlock(unsigned long) ??:? (libleveldb.so.1+0x366a3)
    #2 dev::eth::Block::cleanup() /home/ethnode/cpp-ethereum/libethereum/Block.cpp:900 (eth+0x5c7693)
    #3 dev::eth::BlockChain::import(dev::eth::VerifiedBlockRef const&, dev::OverlayDB const&, bool) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:698 (eth+0x61cbd9)
    #4 dev::eth::BlockChain::sync(dev::eth::BlockQueue&, dev::OverlayDB const&, unsigned int) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:465 (eth+0x619baa)
    #5 dev::eth::Client::syncBlockQueue() /home/ethnode/cpp-ethereum/libethereum/Client.cpp:395 (eth+0x6c673c)
    #6 dev::eth::Client::doWork(bool) /home/ethnode/cpp-ethereum/libethereum/Client.cpp:665 (eth+0x6c177a)
    #7 dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:250 (eth+0x6d91d5)
    #8 non-virtual thunk to dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:? (eth+0x6d91d5)
    #9 dev::Worker::workLoop() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:140 (eth+0x8d346e)
    #10 operator() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:62 (eth+0x8d387b)
    #11 void std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::_M_invoke<>(std::_Index_tuple<>) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731 (eth+0x8d387b)
    #12 std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720 (eth+0x8d387b)
    #13 std::thread::_Impl<std::_Bind_simple<dev::Worker::startWorking()::$_0 ()> >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115 (eth+0x8d387b)
    #14 std::this_thread::__sleep_for(std::chrono::duration<long, std::ratio<1l, 1l> >, std::chrono::duration<long, std::ratio<1l, 1000000000l> >) ??:? (libstdc++.so.6+0xb1a5f)

  Thread T5 'p2p' (tid=93747, running) created by main thread at:
    #0 pthread_create ??:? (eth+0x48e416)
    #1 std::thread::_M_start_thread(std::shared_ptr<std::thread::_Impl_base>) ??:? (libstdc++.so.6+0xb1cae)
    #2 dev::p2p::Host::start() /home/ethnode/cpp-ethereum/libp2p/Host.cpp:128 (eth+0x966ca6)
    #3 dev::WebThreeDirect::startNetwork() /home/ethnode/cpp-ethereum/libwebthree/WebThree.h:202 (eth+0x5358ab)
    #4 main /home/ethnode/cpp-ethereum/eth/main.cpp:1064 (eth+0x5358ab)

  Thread T4 'eth' (tid=93746, running) created by main thread at:
    #0 pthread_create ??:? (eth+0x48e416)
    #1 std::thread::_M_start_thread(std::shared_ptr<std::thread::_Impl_base>) ??:? (libstdc++.so.6+0xb1cae)
    #2 dev::eth::Client::startWorking() /home/ethnode/cpp-ethereum/libethereum/Client.h:212 (eth+0x8a2c78)
    #3 WebThreeDirect /home/ethnode/cpp-ethereum/libwebthree/WebThree.cpp:64 (eth+0x8a2c78)
    #4 main /home/ethnode/cpp-ethereum/eth/main.cpp:874 (eth+0x532d75)

SUMMARY: ThreadSanitizer: data race ??:? in __interceptor_memcmp

================== [376/1956]WARNING: ThreadSanitizer: data race (pid=98884) Read of size 1 at 0x7b80002b6f0a by thread T5: #0 memcmp ??:? (eth+0x4bad22) #1 leveldb::(anonymous namespace)::BytewiseComparatorImpl::Compare(leveldb::Slice const&, leveldb::Slice const&) const comparator.cc:? (libleveldb.so.1+0x3e318) #2 (anonymous namespace)::EthereumHostData::nodeData(dev::RLP const&) const /home/ethnode/cpp-ethereum/libethereum/EthereumHost.cpp:328 (eth+0x6fc065) #3 dev::eth::EthereumPeer::interpret(unsigned int, dev::RLP const&) /home/ethnode/cpp-ethereum/libethereum/EthereumPeer.cpp:371 (eth+0x71796e) #4 dev::p2p::Session::readPacket(unsigned short, dev::p2p::PacketType, dev::RLP const&) /home/ethnode/cpp-ethereum/libp2p/Session.cpp:126 (eth+0x9e85dd) #5 operator() /home/ethnode/cpp-ethereum/libp2p/Session.cpp:384 (eth+0x9ee345) #6 boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>::operator()(boost::system::error_code const&, unsigned long, int) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/impl/read.hpp:282 (eth+0x9ee345) #7 boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>::operator()() /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/bind_handler.hpp:127 (eth+0x9ee9cf) #8 void boost::asio::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long> >(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, ...) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/handler_invoke_hook.hpp:69 (eth+0x9ee9cf) #9 void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>, {lambda(boost::system::error_code, unsigned long)#1}>(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, {lambda(boost::system::error_code, unsigned long)#1}&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/handler_invoke_helpers.hpp:37 (eth+0x9ee9cf) #10 void boost::asio::detail::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, {lambda(boost::system::error_code, unsigned long)#1}>(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, {lambda(boost::system::error_code, unsigned long)#1}>*) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/impl/read.hpp:502 (eth+0x9ee9cf) #11 void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>(boost::asio::detail::binder2<boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}>, boost::system::error_code, unsigned long>&, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/handler_invoke_helpers.hpp:37 (eth+0x9ee9cf) #12 boost::asio::detail::reactive_socket_recv_op<boost::asio::mutable_buffers_1, boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, dev::p2p::Session::doRead()::$_1::operator()(boost::system::error_code, unsigned long) const::{lambda(boost::system::error_code, unsigned long)#1}> >::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/reactive_socket_recv_op.hpp:110 (eth+0x9ee9cf) #13 boost::asio::detail::task_io_service_operation::complete(boost::asio::detail::task_io_service&, boost::system::error_code const&, unsigned long) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/task_io_service_operation.hpp:38 (eth+0x98a3a1) #14 boost::asio::detail::task_io_service::do_run_one(boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex>&, boost::asio::detail::task_io_service_thread_info&, boost::system::error_code const&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/impl/task_io_service.ipp:372 (eth+0x98a3a1) #15 boost::asio::detail::task_io_service::run(boost::system::error_code&) /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/detail/impl/task_io_service.ipp:149 (eth+0x989cf0) #16 boost::asio::io_service::run() /home/ethnode/.hunter/_Base/750fb1d/1a3071a/94374ad/Install/include/boost/asio/impl/io_service.ipp:59 (eth+0x97579c) #17 dev::p2p::Host::doWork() /home/ethnode/cpp-ethereum/libp2p/Host.cpp:775 (eth+0x97579c) #18 dev::Worker::workLoop() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:140 (eth+0x8d34ee) #19 operator() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:62 (eth+0x8d38fb) #20 void std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::_M_invoke<>(std::_Index_tuple<>) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731 (eth+0x8d38fb) #21 std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720 (eth+0x8d38fb) #22 std::thread::_Impl<std::_Bind_simple<dev::Worker::startWorking()::$_0 ()> >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115 (eth+0x8d38fb) #23 std::this_thread::__sleep_for(std::chrono::duration<long, std::ratio<1l, 1l> >, std::chrono::duration<long, std::ratio<1l, 1000000000l> >) ??:? (libstdc++.so.6+0xb1a5f) Previous write of size 1 at 0x7b80002b6f0a by thread T4: #0 memcpy ??:? (eth+0x48ed6c) #1 leveldb::MemTable::Add(unsigned long, leveldb::ValueType, leveldb::Slice const&, leveldb::Slice const&) ??:? (libleveldb.so.1+0x25ced) #2 dev::eth::Block::cleanup() /home/ethnode/cpp-ethereum/libethereum/Block.cpp:900 (eth+0x5c76b3) #3 dev::eth::BlockChain::import(dev::eth::VerifiedBlockRef const&, dev::OverlayDB const&, bool) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:698 (eth+0x61cbf9) #4 dev::eth::BlockChain::sync(dev::eth::BlockQueue&, dev::OverlayDB const&, unsigned int) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:465 (eth+0x619bca) #5 dev::eth::Client::syncBlockQueue() /home/ethnode/cpp-ethereum/libethereum/Client.cpp:395 (eth+0x6c675c) #6 dev::eth::Client::doWork(bool) /home/ethnode/cpp-ethereum/libethereum/Client.cpp:665 (eth+0x6c179a) #7 dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:250 (eth+0x6d91f5) #8 non-virtual thunk to dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:? (eth+0x6d91f5) #9 dev::Worker::workLoop() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:140 (eth+0x8d34ee) #10 operator() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:62 (eth+0x8d38fb) #11 void std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::_M_invoke<>(std::_Index_tuple<>) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731 (eth+0x8d38fb) #12 std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720 (eth+0x8d38fb) #13 std::thread::_Impl<std::_Bind_simple<dev::Worker::startWorking()::$_0 ()> >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115 (eth+0x8d38fb) #14 std::this_thread::__sleep_for(std::chrono::duration<long, std::ratio<1l, 1l> >, std::chrono::duration<long, std::ratio<1l, 1000000000l> >) ??:? (libstdc++.so.6+0xb1a5f) Location is heap block of size 4096 at 0x7b80002b6000 allocated by thread T4: #0 operator new[](unsigned long) ??:? (eth+0x5191f3) #1 leveldb::Arena::AllocateNewBlock(unsigned long) ??:? (libleveldb.so.1+0x3cad3) #2 dev::eth::Block::cleanup() /home/ethnode/cpp-ethereum/libethereum/Block.cpp:900 (eth+0x5c76b3) #3 dev::eth::BlockChain::import(dev::eth::VerifiedBlockRef const&, dev::OverlayDB const&, bool) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:698 (eth+0x61cbf9) #4 dev::eth::BlockChain::sync(dev::eth::BlockQueue&, dev::OverlayDB const&, unsigned int) /home/ethnode/cpp-ethereum/libethereum/BlockChain.cpp:465 (eth+0x619bca) #5 dev::eth::Client::syncBlockQueue() /home/ethnode/cpp-ethereum/libethereum/Client.cpp:395 (eth+0x6c675c) #6 dev::eth::Client::doWork(bool) /home/ethnode/cpp-ethereum/libethereum/Client.cpp:665 (eth+0x6c179a) #7 dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:250 (eth+0x6d91f5) #8 non-virtual thunk to dev::eth::Client::doWork() /home/ethnode/cpp-ethereum/libethereum/Client.h:? (eth+0x6d91f5) #9 dev::Worker::workLoop() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:140 (eth+0x8d34ee) #10 operator() /home/ethnode/cpp-ethereum/libdevcore/Worker.cpp:62 (eth+0x8d38fb) #11 void std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::_M_invoke<>(std::_Index_tuple<>) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1731 (eth+0x8d38fb) #12 std::_Bind_simple<dev::Worker::startWorking()::$_0 ()>::operator()() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/functional:1720 (eth+0x8d38fb) #13 std::thread::_Impl<std::_Bind_simple<dev::Worker::startWorking()::$_0 ()> >::_M_run() /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/thread:115 (eth+0x8d38fb) #14 std::this_thread::__sleep_for(std::chrono::duration<long, std::ratio<1l, 1l> >, std::chrono::duration<long, std::ratio<1l, 1000000000l> >) ??:? (libstdc++.so.6+0xb1a5f) Thread T5 'p2p' (tid=98891, running) created by main thread at: #0 pthread_create ??:? (eth+0x48e436) #1 std::thread::_M_start_thread(std::shared_ptr<std::thread::_Impl_base>) ??:? (libstdc++.so.6+0xb1cae) #2 dev::p2p::Host::start() /home/ethnode/cpp-ethereum/libp2p/Host.cpp:128 (eth+0x966d26) #3 dev::WebThreeDirect::startNetwork() /home/ethnode/cpp-ethereum/libwebthree/WebThree.h:202 (eth+0x5358cb) #4 main /home/ethnode/cpp-ethereum/eth/main.cpp:1064 (eth+0x5358cb) Thread T4 'eth' (tid=98889, running) created by main thread at: #0 pthread_create ??:? (eth+0x48e436) #1 std::thread::_M_start_thread(std::shared_ptr<std::thread::_Impl_base>) ??:? (libstdc++.so.6+0xb1cae) #2 dev::eth::Client::startWorking() /home/ethnode/cpp-ethereum/libethereum/Client.h:212 (eth+0x8a2cf8) #3 WebThreeDirect /home/ethnode/cpp-ethereum/libwebthree/WebThree.cpp:64 (eth+0x8a2cf8) #4 main /home/ethnode/cpp-ethereum/eth/main.cpp:874 (eth+0x532d95) SUMMARY: ThreadSanitizer: data race ??:? in __interceptor_memcmp ==================

ethereum / aleth

ThreadSanitizer reports data race in LevelDB during sync #4740