--- nono/vm/virtio_base.cpp	2026/04/29 17:05:42	1.1.1.5
+++ nono/vm/virtio_base.cpp	2026/04/29 17:05:50	1.1.1.6
@@ -1069,6 +1069,7 @@ VirtIODevice::GetFeatureName(uint featur
 VirtIONoneDevice::VirtIONoneDevice()
 	: inherited(OBJ_NONE)
 {
+	SetName("VirtIONone");
 }
 
 // デストラクタ
@@ -1154,7 +1155,7 @@ VirtIOThread::~VirtIOThread()
 void
 VirtIOThread::Terminate()
 {
-	std::unique_lock<std::mutex> lock(mtx);
+	std::lock_guard<std::mutex> lock(mtx);
 	request |= REQ_TERMINATE;
 	cv.notify_one();
 }
@@ -1163,7 +1164,7 @@ VirtIOThread::Terminate()
 void
 VirtIOThread::RequestQueueNotify(uint idx)
 {
-	std::unique_lock<std::mutex> lock(mtx);
+	std::lock_guard<std::mutex> lock(mtx);
 	request |= REQ_QUEUE(idx);
 	cv.notify_one();
 }