* thread #1: tid = 0x1c03, 0x00007fff91fad0fa libsystem_kernel.dylib`__psynch_cvwait + 10, stop reason = signal SIGSTOP
    frame #0: 0x00007fff91fad0fa libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0x00007fff92caefe9 libsystem_c.dylib`_pthread_cond_wait + 869
    frame #2: 0x000000010612c2d2 _lldb.so`lldb_private::Condition::Wait(lldb_private::Mutex&, lldb_private::TimeValue const*, bool*) + 146 at Condition.cpp:92
    frame #3: 0x0000000105fc68e8 _lldb.so`lldb_private::Predicate<bool>::WaitForValueEqualTo(bool, lldb_private::TimeValue const*, bool*) + 200 at Predicate.h:338
    frame #4: 0x0000000105fca3c9 _lldb.so`lldb_private::Listener::WaitForEventsInternal(lldb_private::TimeValue const*, lldb_private::Broadcaster*, lldb_private::ConstString const*, unsigned int, unsigned int, std::__1::shared_ptr<lldb_private::Event>&) + 841 at Listener.cpp:433
    frame #5: 0x0000000105fca6bc _lldb.so`lldb_private::Listener::WaitForEventForBroadcasterWithType(lldb_private::TimeValue const*, lldb_private::Broadcaster*, unsigned int, std::__1::shared_ptr<lldb_private::Event>&) + 92 at Listener.cpp:464
    frame #6: 0x0000000106431674 _lldb.so`lldb_private::Process::WaitForStateChangedEvents(lldb_private::TimeValue const*, std::__1::shared_ptr<lldb_private::Event>&) + 132 at Process.cpp:1315
    frame #7: 0x000000010643128a _lldb.so`lldb_private::Process::WaitForProcessToStop(lldb_private::TimeValue const*, std::__1::shared_ptr<lldb_private::Event>*) + 570 at Process.cpp:1220
    frame #8: 0x0000000105f4cace _lldb.so`CommandObjectThreadStepWithTypeAndScope::DoExecute(lldb_private::Args&, lldb_private::CommandReturnObject&) + 2958 at CommandObjectThread.cpp:542
    frame #9: 0x00000001061a655b _lldb.so`lldb_private::CommandObjectParsed::Execute(char const*, lldb_private::CommandReturnObject&) + 715 at CommandObject.cpp:969
    frame #10: 0x000000010618042b _lldb.so`lldb_private::CommandInterpreter::HandleCommand(char const*, lldb_private::LazyBool, lldb_private::CommandReturnObject&, lldb_private::ExecutionContext*, bool, bool) + 22779 at CommandInterpreter.cpp:1810
    frame #11: 0x0000000104beec14 _lldb.so`lldb::SBCommandInterpreter::HandleCommand(char const*, lldb::SBCommandReturnObject&, bool) + 292 at SBCommandInterpreter.cpp:122
    frame #12: 0x0000000104d09725 _lldb.so`_wrap_SBCommandInterpreter_HandleCommand__SWIG_1 + 661 at LLDBWrapPython.cpp:9191
    frame #13: 0x0000000104c50636 _lldb.so`_wrap_SBCommandInterpreter_HandleCommand + 518 at LLDBWrapPython.cpp:9226