Protecting few deadline timers with mutex #241
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WARNING: ThreadSanitizer: data race (pid=18054)
Read of size 1 at 0x7b1000014d90 by thread T11:
#8 opflexagent::InterfaceStatsManager::on_timer(boost::system::error_code const&) ovs/InterfaceStatsManager.cpp:105 (libopflex_agent_renderer_openvswitch.so+0x1e74e1)
#14 operator() lib/Agent.cpp:605 (libopflex_agent.so.0+0x275439)
#15 __invoke_impl<void, opflexagent::Agent::start()::<lambda()> > /usr/include/c++/9/bits/invoke.h:60 (libopflex_agent.so.0+0x275439)
#16 __invoke<opflexagent::Agent::start()::<lambda()> > /usr/include/c++/9/bits/invoke.h:95 (libopflex_agent.so.0+0x275439)
#17 _M_invoke<0> /usr/include/c++/9/thread:244 (libopflex_agent.so.0+0x275439)
#18 operator() /usr/include/c++/9/thread:251 (libopflex_agent.so.0+0x275439)
#19 _M_run /usr/include/c++/9/thread:195 (libopflex_agent.so.0+0x275439)
#20 <null> <null> (libstdc++.so.6+0xd086f)
Previous write of size 1 at 0x7b1000014d90 by main thread (mutexes: write M180):
#4 opflexagent::InterfaceStatsManager::stop() ovs/InterfaceStatsManager.cpp:91 (libopflex_agent_renderer_openvswitch.so+0x1e81af)
#5 opflexagent::OVSRenderer::stop() ovs/OVSRenderer.cpp:259 (libopflex_agent_renderer_openvswitch.so+0xcb92b)
#6 opflexagent::Agent::stop() lib/Agent.cpp:718 (libopflex_agent.so.0+0x273368)
#7 AgentLauncher::run() cmd/opflex_agent.cpp:128 (opflex_agent+0x3a4a7)
#8 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Location is heap block of size 64 at 0x7b1000014d80 allocated by main thread:
#0 operator new(unsigned long) <null> (libtsan.so.0+0x77cf2)
#1 opflexagent::InterfaceStatsManager::start() ovs/InterfaceStatsManager.cpp:73 (libopflex_agent_renderer_openvswitch.so+0x1e9646)
#2 opflexagent::OVSRenderer::start() ovs/OVSRenderer.cpp:187 (libopflex_agent_renderer_openvswitch.so+0xd5508)
#3 opflexagent::Agent::start() lib/Agent.cpp:601 (libopflex_agent.so.0+0x27937a)
#4 AgentLauncher::run() cmd/opflex_agent.cpp:120 (opflex_agent+0x3a438)
#5 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Mutex M180 (0x7ffc4bcb7548) created at:
#0 pthread_mutex_lock <null> (libtsan.so.0+0x41d5b)
#1 __gthread_mutex_lock /usr/include/x86_64-linux-gnu/c++/9/bits/gthr-default.h:749 (opflex_agent+0x3a3f0)
#2 std::mutex::lock() /usr/include/c++/9/bits/std_mutex.h:100 (opflex_agent+0x3a3f0)
#3 std::unique_lock<std::mutex>::lock() /usr/include/c++/9/bits/unique_lock.h:141 (opflex_agent+0x3a3f0)
#4 std::unique_lock<std::mutex>::unique_lock(std::mutex&) /usr/include/c++/9/bits/unique_lock.h:71 (opflex_agent+0x3a3f0)
#5 AgentLauncher::run() cmd/opflex_agent.cpp:115 (opflex_agent+0x3a3f0)
#6 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Thread T11 (tid=18066, running) created by main thread at:
#0 pthread_create <null> (libtsan.so.0+0x2d3be)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xd0b04)
#2 AgentLauncher::run() cmd/opflex_agent.cpp:120 (opflex_agent+0x3a438)
#3 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Signed-off-by: Gautam Venkataramanan <gautam.chennai@gmail.com>
tomflynn
approved these changes
Sep 11, 2020
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WARNING: ThreadSanitizer: data race (pid=18054)
Read of size 1 at 0x7b1000014d90 by thread T11:
#8 opflexagent::InterfaceStatsManager::on_timer(boost::system::error_code const&) ovs/InterfaceStatsManager.cpp:105 (libopflex_agent_renderer_openvswitch.so+0x1e74e1)
#14 operator() lib/Agent.cpp:605 (libopflex_agent.so.0+0x275439)
#15 __invoke_impl<void, opflexagent::Agent::start()::<lambda()> > /usr/include/c++/9/bits/invoke.h:60 (libopflex_agent.so.0+0x275439)
#16 __invoke<opflexagent::Agent::start()::<lambda()> > /usr/include/c++/9/bits/invoke.h:95 (libopflex_agent.so.0+0x275439)
#17 _M_invoke<0> /usr/include/c++/9/thread:244 (libopflex_agent.so.0+0x275439)
#18 operator() /usr/include/c++/9/thread:251 (libopflex_agent.so.0+0x275439)
#19 _M_run /usr/include/c++/9/thread:195 (libopflex_agent.so.0+0x275439)
#20 (libstdc++.so.6+0xd086f)
Previous write of size 1 at 0x7b1000014d90 by main thread (mutexes: write M180):
#4 opflexagent::InterfaceStatsManager::stop() ovs/InterfaceStatsManager.cpp:91 (libopflex_agent_renderer_openvswitch.so+0x1e81af)
#5 opflexagent::OVSRenderer::stop() ovs/OVSRenderer.cpp:259 (libopflex_agent_renderer_openvswitch.so+0xcb92b)
#6 opflexagent::Agent::stop() lib/Agent.cpp:718 (libopflex_agent.so.0+0x273368)
#7 AgentLauncher::run() cmd/opflex_agent.cpp:128 (opflex_agent+0x3a4a7)
#8 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Location is heap block of size 64 at 0x7b1000014d80 allocated by main thread:
#0 operator new(unsigned long) (libtsan.so.0+0x77cf2)
#1 opflexagent::InterfaceStatsManager::start() ovs/InterfaceStatsManager.cpp:73 (libopflex_agent_renderer_openvswitch.so+0x1e9646)
#2 opflexagent::OVSRenderer::start() ovs/OVSRenderer.cpp:187 (libopflex_agent_renderer_openvswitch.so+0xd5508)
#3 opflexagent::Agent::start() lib/Agent.cpp:601 (libopflex_agent.so.0+0x27937a)
#4 AgentLauncher::run() cmd/opflex_agent.cpp:120 (opflex_agent+0x3a438)
#5 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Mutex M180 (0x7ffc4bcb7548) created at:
#0 pthread_mutex_lock (libtsan.so.0+0x41d5b)
#1 __gthread_mutex_lock /usr/include/x86_64-linux-gnu/c++/9/bits/gthr-default.h:749 (opflex_agent+0x3a3f0)
#2 std::mutex::lock() /usr/include/c++/9/bits/std_mutex.h:100 (opflex_agent+0x3a3f0)
#3 std::unique_lockstd::mutex::lock() /usr/include/c++/9/bits/unique_lock.h:141 (opflex_agent+0x3a3f0)
#4 std::unique_lockstd::mutex::unique_lock(std::mutex&) /usr/include/c++/9/bits/unique_lock.h:71 (opflex_agent+0x3a3f0)
#5 AgentLauncher::run() cmd/opflex_agent.cpp:115 (opflex_agent+0x3a3f0)
#6 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Thread T11 (tid=18066, running) created by main thread at:
#0 pthread_create (libtsan.so.0+0x2d3be)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_deletestd::thread::_State >, void (*)()) (libstdc++.so.6+0xd0b04)
#2 AgentLauncher::run() cmd/opflex_agent.cpp:120 (opflex_agent+0x3a438)
#3 main cmd/opflex_agent.cpp:322 (opflex_agent+0x16dc2)
Signed-off-by: Gautam Venkataramanan gautam.chennai@gmail.com