diff --git a/platform/src/tcp_stream.cpp b/platform/src/tcp_stream.cpp
index 3e9e170..450c2bd 100644
--- a/platform/src/tcp_stream.cpp
+++ b/platform/src/tcp_stream.cpp
@@ -208,11 +208,11 @@ struct tfe_stream_write_ctx * tfe_stream_write_frag_start(const struct tfe_strea
 
 int tfe_stream_write_frag(struct tfe_stream_write_ctx * w_ctx, const unsigned char * data, size_t size)
 {
-	if(w_ctx->_stream == NULL)
-	{ 
+	if (w_ctx->_stream == NULL)
+	{
 		return -EPIPE;
 	}
-	
+
 	struct tfe_conn_private * this_conn = __this_conn(w_ctx->_stream, w_ctx->dir);
 	int ret = 0;
 	if (this_conn != NULL)
@@ -254,7 +254,7 @@ void tfe_stream_write_frag_end(struct tfe_stream_write_ctx * w_ctx)
 		w_ctx->_stream->w_ctx_upstream = NULL;
 	}
 
-__out:	
+__out:
 	free(w_ctx);
 }
 
@@ -503,6 +503,11 @@ static void __stream_bev_readcb(struct bufferevent * bev, void * arg)
 			plug_ctx->is_plugin_opened = 1;
 		}
 
+		if (plug_ctx->state == PLUG_STATE_DETACHED)
+		{
+			continue;
+		}
+
 		if (p_info_iter->on_data != NULL)
 		{
 			action_tmp = p_info_iter->on_data(&_stream->head, _stream->thread_ref->thread_id,
@@ -677,11 +682,11 @@ __close_connection:
 	if (*ref_this_conn != NULL)
 	{
 		/* There is a frag writter setted, need to clear the reference of stream in the writter to indicate the connection is closed */
-		if(*ref_this_write_ctx != NULL)
+		if (*ref_this_write_ctx != NULL)
 		{
 			(*ref_this_write_ctx)->_stream = NULL;
 		}
-		
+
 		__conn_private_destory_with_ssl(ev_base, *ref_this_conn, *ref_this_ssl_stream);
 		*ref_this_conn = NULL;
 		*ref_this_ssl_stream = NULL;
@@ -972,15 +977,15 @@ int __fd_ttl_option_setup(struct tfe_stream_private * _stream, evutil_socket_t f
 	struct sockaddr_storage sk_storage;
 	socklen_t sk_storage_len = sizeof(sk_storage);
 
-	if (getsockname(fd, (struct sockaddr *)&sk_storage, &sk_storage_len) < 0)
+	if (getsockname(fd, (struct sockaddr *) &sk_storage, &sk_storage_len) < 0)
 	{
 		TFE_STREAM_LOG_ERROR(_stream, "getsockname(fd = %d) failed: %s", fd, strerror(errno));
 		return -1;
 	}
 
 	/* For IPv4, set TTL */
-	unsigned int __ttl = (unsigned int)ttl;
-	const char  * __str_family = NULL;
+	unsigned int __ttl = (unsigned int) ttl;
+	const char * __str_family = NULL;
 	int ret = 0;
 
 	if (sk_storage.ss_family == AF_INET)
@@ -995,10 +1000,11 @@ int __fd_ttl_option_setup(struct tfe_stream_private * _stream, evutil_socket_t f
 	}
 	else { assert(0); }
 
-	if(ret < 0)
+	if (ret < 0)
 	{
 		TFE_STREAM_LOG_ERROR(_stream, "setsockopt(ttl = %u, fd = %d, family = %s) failed: %s",
-			__ttl, fd, __str_family, strerror(errno)); return -2;
+			__ttl, fd, __str_family, strerror(errno));
+		return -2;
 	}
 
 	return 0;
@@ -1080,7 +1086,7 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 	}
 
 	int __ttl = (dir == CONN_DIR_UPSTREAM) ? tcp_options->tcp_ttl_upstream : tcp_options->tcp_ttl_downstream;
-	if(__ttl > 0 && __fd_ttl_option_setup(_stream, fd, __ttl) < 0)
+	if (__ttl > 0 && __fd_ttl_option_setup(_stream, fd, __ttl) < 0)
 	{
 		TFE_STREAM_LOG_ERROR(stream, "Failed at setup FD's ttl option, ttl = %d, fd = %d", __ttl, fd);
 	}
diff --git a/plugin/protocol/http/src/http_entry.cpp b/plugin/protocol/http/src/http_entry.cpp
index e29e6b4..eaf20dd 100644
--- a/plugin/protocol/http/src/http_entry.cpp
+++ b/plugin/protocol/http/src/http_entry.cpp
@@ -89,7 +89,7 @@ int http_plugin_init(struct tfe_proxy * proxy)
 		plugin_ctx->gc_event_hs_private[thread_id] = gc_event;
 	}
 
-	plugin_ctx->access_logger = MESA_create_runtime_log_handle("log/http-access.log", RLOG_LV_INFO);
+	plugin_ctx->access_logger = MESA_create_runtime_log_handle("log/http.log", RLOG_LV_INFO);
 	assert(plugin_ctx->access_logger != NULL);
 
 	return 0;
@@ -419,6 +419,11 @@ enum tfe_stream_action http_connection_entry(const struct tfe_stream * stream, e
 		return ACTION_DEFER_DATA;
 	}
 
+	if (hf_private_in->is_upgrade || hf_private_in->is_passthrough)
+	{
+		goto __passthrough;
+	}
+
 	/* Need more data, no boundary touched */
 	if (ret == 0)
 	{
@@ -431,18 +436,14 @@ enum tfe_stream_action http_connection_entry(const struct tfe_stream * stream, e
 		return hf_private_in->stream_action;
 	}
 
-	if (ret == -1 && hf_private_in->is_passthrough)
-	{
-		goto __passthrough;
-	}
-
 	/* Some kind of error happened, write log and detach the stream */
 	if (ret == -1)
 	{
-		TFE_STREAM_LOG_ERROR(stream, "Failed at parsing stream as HTTP: %u, %s, %s",
-			hf_private_in->parse_errno, http_errno_name(hf_private_in->parse_errno),
+		TFE_LOG_ERROR(g_http_plugin->access_logger, "%s: Failed at parsing stream as HTTP, %u, %s, %s",
+			stream->str_stream_info, hf_private_in->parse_errno, http_errno_name(hf_private_in->parse_errno),
 			http_errno_description(hf_private_in->parse_errno));
 
+		tfe_hexdump2file(stderr, "Failed at parsing stream as HTTP", data, (unsigned int)len);
 		goto __passthrough;
 	}