diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7450778..d72e681 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 	set(CMAKE_CXX_FLAGS "/std:c++latest /await /EHsc")
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-	set(CMAKE_CXX_FLAGS "-std=c++2a -fcoroutines")
+	set(CMAKE_CXX_FLAGS "-std=c++2a -fcoroutines -pthread")
 endif()
 
 message(STATUS "C++ flags: ${CMAKE_CXX_FLAGS}")
@@ -26,7 +26,7 @@ endif()
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 	option(OPT_USE_CONCEPT "Use conecpt instead of enable_if" ON)
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-	option(OPT_USE_CONCEPT "Use conecpt instead of enable_if" ON)
+	option(OPT_USE_CONCEPT "Use conecpt instead of enable_if" OFF)
 else()
 	option(OPT_USE_CONCEPT "Use conecpt instead of enable_if" OFF)
 endif()
diff --git a/benchmark/benchmark_async_mem.cpp b/benchmark/benchmark_async_mem.cpp
index 09934f3..7777609 100644
--- a/benchmark/benchmark_async_mem.cpp
+++ b/benchmark/benchmark_async_mem.cpp
@@ -9,7 +9,7 @@
 const size_t N = 2000000;
 const size_t LOOP_COUNT = 50;
 
-volatile size_t globalValue = 0;
+std::atomic<size_t> globalValue{0};
 
 void resumable_main_benchmark_mem(bool wait_key)
 {
diff --git a/benchmark/benchmark_channel_passing_next.cpp b/benchmark/benchmark_channel_passing_next.cpp
index 3e2cc76..fee5def 100644
--- a/benchmark/benchmark_channel_passing_next.cpp
+++ b/benchmark/benchmark_channel_passing_next.cpp
@@ -26,6 +26,20 @@ static future_t<> passing_next(channel_t<intptr_t> rd, channel_t<intptr_t> wr)
 	}
 }
 
+static future_t<> passing_loop_all(channel_t<intptr_t> head, channel_t<intptr_t> tail)
+{
+	for (int i = 0; i < LoopCount; ++i)
+	{
+		auto tstart = high_resolution_clock::now();
+
+		co_await(head << 0);
+		intptr_t value = co_await tail;
+
+		auto dt = duration_cast<duration<double>>(high_resolution_clock::now() - tstart).count();
+		std::cout << value << " cost time " << dt << "s" << std::endl;
+	}
+}
+
 void benchmark_main_channel_passing_next()
 {
 	channel_t<intptr_t> head{1};
@@ -39,6 +53,9 @@ void benchmark_main_channel_passing_next()
 		in = tail;
 	}
 
+#if defined(__GNUC__)
+	go passing_loop_all(head, tail);
+#else
 	GO
 	{
 		for (int i = 0; i < LoopCount; ++i)
@@ -52,6 +69,7 @@ void benchmark_main_channel_passing_next()
 			std::cout << value << " cost time " << dt << "s" << std::endl;
 		}
 	};
+#endif
 
 	this_scheduler()->run_until_notask();
 }
diff --git a/librf/librf.h b/librf/librf.h
index 535bd5a..378567e 100644
--- a/librf/librf.h
+++ b/librf/librf.h
@@ -33,7 +33,7 @@
 #include <thread>
 #include <iostream>
 #include <assert.h>
-#if defined(__clang__)
+#if defined(__clang__) || defined(__GNUC__)
 #include "src/unix/coroutine.h"     //编译器内建的协程函数，MSVC和clang不一样
 #else
 #include <experimental/coroutine>
diff --git a/librf/src/config.h b/librf/src/config.h
index b5a3737..9b03415 100644
--- a/librf/src/config.h
+++ b/librf/src/config.h
@@ -14,9 +14,9 @@
 
 #ifndef RESUMEF_ENABLE_CONCEPT
 #ifdef __cpp_lib_concepts
-#define RESUMEF_ENABLE_CONCEPT 1
+/* #undef RESUMEF_ENABLE_CONCEPT */
 #else
-#define RESUMEF_ENABLE_CONCEPT 1
+/* #undef RESUMEF_ENABLE_CONCEPT */
 #endif	//#ifdef __cpp_lib_concepts
 #endif	//#ifndef RESUMEF_ENABLE_CONCEPT
 
diff --git a/librf/src/generator.h b/librf/src/generator.h
index f3c4c05..bcb8ea0 100644
--- a/librf/src/generator.h
+++ b/librf/src/generator.h
@@ -160,7 +160,7 @@ namespace resumef
 				(void)e;
 				std::terminate();
 			}
-#ifdef __clang__
+#if defined(__clang__) || defined(__GNUC__)
 			void unhandled_exception()
 			{
 				std::terminate();
diff --git a/librf/src/mutex_v2.h b/librf/src/mutex_v2.h
index aad9710..dadced0 100644
--- a/librf/src/mutex_v2.h
+++ b/librf/src/mutex_v2.h
@@ -25,7 +25,7 @@ namespace resumef
 		 * @brief 在析构的时候自动解锁mutex_t的辅助类。
 		 */
 		template<class... _Mtxs>
-		struct [[nodiscard]] batch_unlock_t;
+		struct batch_unlock_t;
 
 		/**
 		 * @brief 支持递归的锁。
diff --git a/librf/src/mutex_v2.inl b/librf/src/mutex_v2.inl
index 6a218e4..8446700 100644
--- a/librf/src/mutex_v2.inl
+++ b/librf/src/mutex_v2.inl
@@ -475,7 +475,7 @@ namespace resumef
 				for (int cnt = rand() % (1 + _mutex.size()); cnt >= 0; --cnt)
 				{
 					std::this_thread::yield();	//还要考虑多线程里运行的情况
-					co_await ::resumef::yield();
+					co_await yield_awaitor{};
 				}
 			}
 			future_t<> _ReturnValue() const;
@@ -489,7 +489,7 @@ namespace resumef
 		};
 
 		template<class... _Mtxs>
-		struct [[nodiscard]] batch_unlock_t
+		struct batch_unlock_t
 		{
 			mutex_t::_MutexAwaitAssembleT _MAA;
 
@@ -534,13 +534,15 @@ namespace resumef
 			co_return std::move(unlock_guard);
 		}
 
+#ifndef __GNUC__
 		template<class... _Mtxs, typename>
 		inline future_t<> mutex_t::lock(adopt_manual_unlock_t, _Mtxs&... mtxs)
 		{
 			mutex_t::_MutexAwaitAssembleT _MAA{ root_state(), mtxs... };
 			co_await detail::mutex_lock_await_lock_impl::_Lock_range(_MAA);
 		}
-
+#endif
+		
 		template<class... _Mtxs, typename>
 		inline future_t<> mutex_t::unlock(_Mtxs&... mtxs)
 		{
diff --git a/librf/src/promise.h b/librf/src/promise.h
index e383920..0f88c37 100644
--- a/librf/src/promise.h
+++ b/librf/src/promise.h
@@ -30,7 +30,7 @@ namespace resumef
 		template <typename _Uty>
 		_Uty&& await_transform(_Uty&& _Whatever) noexcept;
 		void set_exception(std::exception_ptr e);
-#ifdef __clang__
+#if defined(__clang__) || defined(__GNUC__)
 		void unhandled_exception();		//If the coroutine ends with an uncaught exception, it performs the following: 
 #endif
 		future_type get_return_object() noexcept;
diff --git a/librf/src/promise.inl b/librf/src/promise.inl
index e90726d..6c825d3 100644
--- a/librf/src/promise.inl
+++ b/librf/src/promise.inl
@@ -73,7 +73,7 @@ namespace resumef
         this->get_state()->set_exception(std::move(e));
 	}
 
-#ifdef __clang__
+#if defined(__clang__) || defined(__GNUC__)
 	template <typename _Ty>
 	inline void promise_impl_t<_Ty>::unhandled_exception()
 	{
diff --git a/librf/src/scheduler.cpp b/librf/src/scheduler.cpp
index aa95e78..fa16988 100644
--- a/librf/src/scheduler.cpp
+++ b/librf/src/scheduler.cpp
@@ -27,7 +27,7 @@ namespace resumef
 	{
 		if (classname)
 		{
-#if __clang__
+#if defined(__clang__) || defined(__GNUC__)
 #define sprintf_s sprintf
 #endif
 			sprintf_s(sz_future_error_buffer, "%s, code=%s", classname, future_error_string[(size_t)(fe)]);
diff --git a/librf/src/state.h b/librf/src/state.h
index 3a214eb..ceb2d7f 100644
--- a/librf/src/state.h
+++ b/librf/src/state.h
@@ -150,7 +150,7 @@ namespace resumef
 			//msvc认为是constexpr表达式(不写还给警告)，然而，clang不这么认为。
 			//放弃constexpr，反正合格的编译器都会优化掉这个if判断的。
 			if 
-#ifndef __clang__
+#ifdef _MSC_VER
 				constexpr
 #endif
 				(_offset_of(state_future_t, _is_future) - _offset_of(state_future_t, _has_value) == 1)
diff --git a/librf/src/unix/coroutine.h b/librf/src/unix/coroutine.h
index d4ff461..e5e5241 100644
--- a/librf/src/unix/coroutine.h
+++ b/librf/src/unix/coroutine.h
@@ -52,7 +52,12 @@ template <class P> struct hash<coroutine_handle<P>>;
 #include <memory> // for hash<T*>
 #include <cstddef>
 #include <cassert>
+
+#if defined(__clang__)
 #include "clang_builtin.h"
+#elif defined(__GNUC__)
+#include "gcc_builtin.h"
+#endif
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
@@ -61,6 +66,9 @@ template <class P> struct hash<coroutine_handle<P>>;
 #ifndef _LIBCPP_HAS_NO_COROUTINES
 
 namespace std {
+#if defined(__GNUC__)
+	inline
+#endif
 	namespace experimental {
 
 		template <class _Tp, class = void>
diff --git a/librf/src/without_deadlock_assemble.inl b/librf/src/without_deadlock_assemble.inl
index f976b79..7bef438 100644
--- a/librf/src/without_deadlock_assemble.inl
+++ b/librf/src/without_deadlock_assemble.inl
@@ -19,7 +19,8 @@ struct LOCK_ASSEMBLE_NAME(lock_impl)
 		try {
 			for (; _Next != _Last; ++_Next)
 			{
-				if (!LOCK_ASSEMBLE_AWAIT(_LkN._Try_lock_ref(_LkN[_Next])))
+				auto _Result__ = LOCK_ASSEMBLE_AWAIT(_LkN._Try_lock_ref(_LkN[_Next]));
+				if (!_Result__)
 				{ // try_lock failed, backout
 					_Unlock_locks(_First, _Next, _LkN);
 					LOCK_ASSEMBLE_RETURN(_Next);
@@ -84,7 +85,8 @@ struct LOCK_ASSEMBLE_NAME(lock_impl)
 		// attempt to lock 2 locks, by first locking _Lk0, and then trying to lock _Lk1 returns whether to try again
 		LOCK_ASSEMBLE_AWAIT(_LkN._Lock_ref(_LkN[_Idx0]));
 		try {
-			if (LOCK_ASSEMBLE_AWAIT(_LkN._Try_lock_ref(_LkN[_Idx1])))
+			auto _Result__ = LOCK_ASSEMBLE_AWAIT(_LkN._Try_lock_ref(_LkN[_Idx1]));
+			if (_Result__)
 				LOCK_ASSEMBLE_RETURN(false);
 		}
 		catch (...) {
@@ -102,10 +104,20 @@ struct LOCK_ASSEMBLE_NAME(lock_impl)
 	static auto _Lock_nonmember2(_LA& _LkN) ->decltype(_LkN._ReturnValue())
 	{
 		// lock 2 locks, without deadlock, special case for better codegen and reduced metaprogramming for common case
+#if defined(__GNUC__)
+		for (;;)
+		{
+			auto _Result__ = LOCK_ASSEMBLE_AWAIT(_Lock_attempt_small2(_LkN, 0, 1));
+			if (!_Result__) break;
+			_Result__ = LOCK_ASSEMBLE_AWAIT(_Lock_attempt_small2(_LkN, 1, 0));
+			if (!_Result__) break;
+		}
+#else
 		while (LOCK_ASSEMBLE_AWAIT(_Lock_attempt_small2(_LkN, 0, 1)) && 
 			LOCK_ASSEMBLE_AWAIT(_Lock_attempt_small2(_LkN, 1, 0)))
 		{ // keep trying
 		}
+#endif
 	}
 
 	template<_LockAssembleT _LA>
diff --git a/tutorial/test_async_event.cpp b/tutorial/test_async_event.cpp
index b4e082e..0c8fca6 100644
--- a/tutorial/test_async_event.cpp
+++ b/tutorial/test_async_event.cpp
@@ -22,7 +22,8 @@ static future_t<> resumable_wait_event(const event_t & e)
 {
 	using namespace std::chrono;
 
-	if (co_await e.wait() == false)
+	auto result = co_await e.wait();
+	if (result == false)
 		std::cout << "time out!" << std::endl;
 	else
 		std::cout << "event signal!" << std::endl;
@@ -69,7 +70,8 @@ static void test_wait_three()
 
 	go[&]() -> future_t<>
 	{
-		if (co_await event_t::wait_all(std::initializer_list<event_t>{ evt1, evt2, evt3 }))
+		auto result = co_await event_t::wait_all(std::initializer_list<event_t>{ evt1, evt2, evt3 });
+		if (result)
 			std::cout << "all event signal!" << std::endl;
 		else
 			std::cout << "time out!" << std::endl;
@@ -125,7 +127,8 @@ static void test_wait_all()
 
 	go[&]() -> future_t<>
 	{
-		if (co_await event_t::wait_all(evts))
+		auto result = co_await event_t::wait_all(evts);
+		if (result)
 			std::cout << "all event signal!" << std::endl;
 		else
 			std::cout << "time out!" << std::endl;
@@ -153,7 +156,8 @@ static void test_wait_all_timeout()
 
 	go[&]() -> future_t<>
 	{
-		if (co_await event_t::wait_all_for(1000ms, evts))
+		auto result = co_await event_t::wait_all_for(1000ms, evts);
+		if (result)
 			std::cout << "all event signal!" << std::endl;
 		else
 			std::cout << "time out!" << std::endl;
diff --git a/tutorial/test_async_event_timeout.cpp b/tutorial/test_async_event_timeout.cpp
index 5c8664e..7f1d5a0 100644
--- a/tutorial/test_async_event_timeout.cpp
+++ b/tutorial/test_async_event_timeout.cpp
@@ -35,7 +35,8 @@ void test_wait_timeout_one()
 		intptr_t counter = 0;
 		for (;;)
 		{
-			if (co_await evt.wait_for(100ms))
+			auto result = co_await evt.wait_for(100ms);
+			if (result)
 				break;
 			++counter;
 			std::cout << ".";
@@ -137,7 +138,8 @@ void test_wait_timeout_all()
 		intptr_t counter = 0;
 		for (;;)
 		{
-			if (co_await event_t::wait_all_for(1500ms, evts))
+			auto result = co_await event_t::wait_all_for(1500ms, evts);
+			if (result)
 			{
 				std::cout << counter << std::endl;
 				std::cout << "all event signal!" << std::endl;
diff --git a/tutorial/test_async_event_v2.cpp b/tutorial/test_async_event_v2.cpp
index b70c56f..9c48e8c 100644
--- a/tutorial/test_async_event_v2.cpp
+++ b/tutorial/test_async_event_v2.cpp
@@ -29,7 +29,8 @@ static std::thread async_set_event_one(event_v2::event_t e, std::chrono::millise
 
 static future_t<> resumable_wait_event(event_v2::event_t e, int idx)
 {
-	if (co_await e)
+	auto result = co_await e;
+	if (result)
 		std::cout << "[" << idx << "]event signal!" << std::endl;
 	else
 		std::cout << "[" << idx << "]time out!" << std::endl;
@@ -37,7 +38,8 @@ static future_t<> resumable_wait_event(event_v2::event_t e, int idx)
 
 static future_t<> resumable_wait_timeout(event_v2::event_t e, milliseconds dt, int idx)
 {
-	if (co_await e.wait_for(dt))
+	auto result = co_await e.wait_for(dt);
+	if (result)
 		std::cout << "[" << idx << "]event signal!" << std::endl;
 	else
 		std::cout << "[" << idx << "]time out!" << std::endl;
diff --git a/tutorial/test_async_memory_layout.cpp b/tutorial/test_async_memory_layout.cpp
index 6c87046..8c1a8dd 100644
--- a/tutorial/test_async_memory_layout.cpp
+++ b/tutorial/test_async_memory_layout.cpp
@@ -51,7 +51,7 @@ future_t<int64_t> resumeable_get_long(int64_t x, int64_t y)
 	using promise_type = typename future_type::promise_type;
 	using state_type = typename future_type::state_type;
 
-	void* frame_ptr = _coro_frame_ptr();
+	void* frame_ptr = __builtin_coro_frame();
 	auto handler = coroutine_handle<promise_type>::from_address(frame_ptr);
 	promise_type* promise = &handler.promise();
 	state_type* state = handler.promise().get_state();
@@ -59,10 +59,10 @@ future_t<int64_t> resumeable_get_long(int64_t x, int64_t y)
 	std::cout << "  future size=" << sizeof(future_type) << " / " << _Align_size<future_type>() << std::endl;
 	std::cout << "  promise size=" << sizeof(promise_type) << " / " << _Align_size<promise_type>() << std::endl;
 	std::cout << "  state size=" << sizeof(state_type) << " / "<< _Align_size<state_type>() << std::endl;
-	std::cout << "  frame size=" << _coro_frame_size() << ", alloc size=" << state->get_alloc_size() << std::endl;
+	std::cout << "  frame size=" << __builtin_coro_size() << ", alloc size=" << state->get_alloc_size() << std::endl;
 
 	std::cout << "  frame ptr=" << frame_ptr << "," << (void*)&frame_ptr << std::endl;
-	std::cout << "  frame end=" << (void*)((char*)(frame_ptr)+_coro_frame_size()) << std::endl;
+	std::cout << "  frame end=" << (void*)((char*)(frame_ptr)+__builtin_coro_size()) << std::endl;
 	std::cout << "  promise ptr=" << promise << "," << (void*)&promise << std::endl;
 	std::cout << "  handle ptr=" << handler.address() << "," << (void*)&handler << std::endl;
 	std::cout << "  state ptr=" << state << "," << (void*)&state << std::endl;
@@ -90,7 +90,7 @@ future_t<> resumable_get_long_2(int64_t a, int64_t b, int64_t c)
 	using promise_type = typename future_type::promise_type;
 	using state_type = typename future_type::state_type;
 
-	void* frame_ptr = _coro_frame_ptr();
+	void* frame_ptr = __builtin_coro_frame();
 	auto handler = coroutine_handle<promise_type>::from_address(frame_ptr);
 	promise_type * promise = &handler.promise();
 	state_type * state = handler.promise().get_state();
@@ -98,10 +98,10 @@ future_t<> resumable_get_long_2(int64_t a, int64_t b, int64_t c)
 	std::cout << "  future size=" << sizeof(future_type) << " / " << _Align_size<future_type>() << std::endl;
 	std::cout << "  promise size=" << sizeof(promise_type) << " / " << _Align_size<promise_type>() << std::endl;
 	std::cout << "  state size=" << sizeof(state_type) << " / "<< _Align_size<state_type>() << std::endl;
-	std::cout << "  frame size=" << _coro_frame_size() << ", alloc size=" << state->get_alloc_size() << std::endl;
+	std::cout << "  frame size=" << __builtin_coro_size() << ", alloc size=" << state->get_alloc_size() << std::endl;
 
 	std::cout << "  frame ptr=" << frame_ptr << ","<< (void*)&frame_ptr << std::endl;
-	std::cout << "  frame end=" << (void *)((char*)(frame_ptr) + _coro_frame_size()) << std::endl;
+	std::cout << "  frame end=" << (void *)((char*)(frame_ptr) + __builtin_coro_size()) << std::endl;
 	std::cout << "  promise ptr=" << promise << "," << (void *)&promise << std::endl;
 	std::cout << "  handle ptr=" << handler.address() << "," << (void*)&handler << std::endl;
 	std::cout << "  state ptr=" << state << "," << (void*)&state << std::endl;
diff --git a/tutorial/test_async_mutex.cpp b/tutorial/test_async_mutex.cpp
index 4f48500..d7197c6 100644
--- a/tutorial/test_async_mutex.cpp
+++ b/tutorial/test_async_mutex.cpp
@@ -61,8 +61,12 @@ static future_t<> test_mutex_try_push(size_t idx)
 	for (size_t i = 0; i < N; ++i)
 	{
 		{
-			while (!co_await g_lock.try_lock())
+			for (;;)
+			{
+				auto result = co_await g_lock.try_lock();
+				if (result) break;
 				co_await yield();
+			}
 
 			++g_counter;
 			std::cout << "push:" << g_counter << " on " << idx << std::endl;
@@ -79,8 +83,12 @@ static future_t<> test_mutex_timeout_push(size_t idx)
 	for (size_t i = 0; i < N; ++i)
 	{
 		{
-			while (!co_await g_lock.try_lock_for(10ms))
+			for (;;)
+			{
+				auto result = co_await g_lock.try_lock_for(10ms);
+				if (result) break;
 				co_await yield();
+			}
 
 			++g_counter;
 			std::cout << "push:" << g_counter << " on " << idx << std::endl;
diff --git a/tutorial/test_async_routine.cpp b/tutorial/test_async_routine.cpp
index 1685da6..9910906 100644
--- a/tutorial/test_async_routine.cpp
+++ b/tutorial/test_async_routine.cpp
@@ -16,7 +16,7 @@ future_t<> test_routine_use_timer()
 	{
 		co_await resumef::sleep_for(100ms);
 		std::cout << "timer after 100ms" << std::endl;
-		std::cout << "1:frame=" << _coro_frame_ptr() << std::endl;
+		std::cout << "1:frame=" << __builtin_coro_frame() << std::endl;
 	}
 }
 
@@ -25,11 +25,11 @@ future_t<> test_routine_use_timer_2()
 	std::cout << "test_routine_use_timer_2" << std::endl;
 
 	co_await test_routine_use_timer();
-	std::cout << "2:frame=" << _coro_frame_ptr() << std::endl;
+	std::cout << "2:frame=" << __builtin_coro_frame() << std::endl;
 	co_await test_routine_use_timer();
-	std::cout << "2:frame=" << _coro_frame_ptr() << std::endl;
+	std::cout << "2:frame=" << __builtin_coro_frame() << std::endl;
 	co_await test_routine_use_timer();
-	std::cout << "2:frame=" << _coro_frame_ptr() << std::endl;
+	std::cout << "2:frame=" << __builtin_coro_frame() << std::endl;
 }
 
 void resumable_main_routine()
diff --git a/tutorial/test_async_sleep.cpp b/tutorial/test_async_sleep.cpp
index 8571019..bef06a8 100644
--- a/tutorial/test_async_sleep.cpp
+++ b/tutorial/test_async_sleep.cpp
@@ -38,7 +38,8 @@ void test_wait_all_events_with_signal_by_sleep()
 
 	go[&]() -> future_t<>
 	{
-		if (co_await event_t::wait_all(evts))
+		auto result = co_await event_t::wait_all(evts);
+		if (result)
 			std::cout << "all event signal!" << std::endl;
 		else
 			std::cout << "time out!" << std::endl;
diff --git a/tutorial/test_async_switch_scheduler.cpp b/tutorial/test_async_switch_scheduler.cpp
index 823e47a..778d885 100644
--- a/tutorial/test_async_switch_scheduler.cpp
+++ b/tutorial/test_async_switch_scheduler.cpp
@@ -88,6 +88,18 @@ static future_t<> resumable_get_long_switch_scheduler(int64_t val, channel_t<boo
 	(void)c_done.write(true);
 }
 
+static future_t<> resumable_main_switch_scheduler_fix_gcc_bugs(std::thread & other, channel_t<bool> c_done)
+{
+	co_await c_done;		//第一次等待，等待run_in_thread准备好了
+
+	std::cout << "other thread = " << other.get_id();
+	std::cout << ", sch_in_thread = " << sch_in_thread << std::endl;
+
+	go resumable_get_long_switch_scheduler(1, c_done);	//开启另外一个协程
+	//co_await resumable_get_long(3, c_done);
+	co_await c_done;		//等待新的协程运行完毕，从而保证主线程的协程不会提早退出
+}
+
 void resumable_main_switch_scheduler()
 {
 	sch_in_main = this_scheduler();
@@ -98,6 +110,9 @@ void resumable_main_switch_scheduler()
 	channel_t<bool> c_done{ 1 };
 	std::thread other(&run_in_thread, std::ref(c_done));
 
+#if defined(__GNUC__)
+	go resumable_main_switch_scheduler_fix_gcc_bugs(other, c_done);
+#else
 	go[&other, c_done]()->future_t<>
 	{
 		co_await c_done;		//第一次等待，等待run_in_thread准备好了
@@ -108,7 +123,8 @@ void resumable_main_switch_scheduler()
 		go resumable_get_long_switch_scheduler(1, c_done);	//开启另外一个协程
 		//co_await resumable_get_long(3, c_done);
 		co_await c_done;		//等待新的协程运行完毕，从而保证主线程的协程不会提早退出
-	};
+	}; //GCC: internal compiler error: in captures_temporary, at cp/coroutines.cc:2716
+#endif
 
 	sch_in_main->run_until_notask();