diff --git a/src/raspberrypi/controllers/sasidev_ctrl.cpp b/src/raspberrypi/controllers/sasidev_ctrl.cpp
index 6fc5987c..caa0aa54 100644
--- a/src/raspberrypi/controllers/sasidev_ctrl.cpp
+++ b/src/raspberrypi/controllers/sasidev_ctrl.cpp
@@ -54,7 +54,7 @@ SASIDEV::SASIDEV(Device *dev)
 #ifdef RASCSI
 	ctrl.execstart = 0;
 #endif	// RASCSI
-	ctrl.bufsize = ETH_FRAME_LEN + 16 + ETH_FCS_LEN;
+	ctrl.bufsize = std::max(0x800, ETH_FRAME_LEN + 16 + ETH_FCS_LEN);
 	ctrl.buffer = (BYTE *)malloc(ctrl.bufsize);
 	memset(ctrl.buffer, 0x00, ctrl.bufsize);
 	ctrl.blocks = 0;
diff --git a/src/raspberrypi/gpiobus.h b/src/raspberrypi/gpiobus.h
index 943e3f5b..a3f64bec 100644
--- a/src/raspberrypi/gpiobus.h
+++ b/src/raspberrypi/gpiobus.h
@@ -645,7 +645,7 @@ private:
 	DWORD signals;						// All bus signals
 
 #if defined(USE_SEL_EVENT_ENABLE) && !defined(BAREMETAL)
-	struct gpioevent_request selevreq;	// SEL signal event request
+	struct gpioevent_request selevreq = {};	// SEL signal event request
 
 	int epfd;							// epoll file descriptor
 #endif	// USE_SEL_EVENT_ENABLE && !BAREMETAL