diff --git a/kernel/device/device.c b/kernel/device/device.c
index 4270582..a1800d1 100644
--- a/kernel/device/device.c
+++ b/kernel/device/device.c
@@ -131,7 +131,7 @@ static void debugconsole_device_init (void) {
   struct reschedule_ctx rctx;
   memset (&rctx, 0, sizeof (rctx));
 
-  device_op_func_t ops[] = {
+  static device_op_func_t ops[] = {
       [DEBUGCONSOLE_PUTSTR] = &debugconsole_putstr,
   };
   device_create (DEVICE_TYPE_DEBUGCONSOLE, "debugconsole", ops, lengthof (ops), &debugconsole_init,
@@ -142,7 +142,7 @@ static void terminal_device_init (void) {
   struct reschedule_ctx rctx;
   memset (&rctx, 0, sizeof (rctx));
 
-  device_op_func_t ops[] = {
+  static device_op_func_t ops[] = {
       [TERMINAL_PUTSTR] = &terminal_putstr,
       [TERMINAL_DIMENSIONS] = &terminal_dimensions,
   };
@@ -154,7 +154,7 @@ static void sys_device_init (void) {
   struct reschedule_ctx rctx;
   memset (&rctx, 0, sizeof (rctx));
 
-  device_op_func_t ops[] = {
+  static device_op_func_t ops[] = {
       [XDRV_GET_SIZE] = &ramdrv_get_size,
       [XDRV_GET_SECTOR_SIZE] = &ramdrv_get_sector_size,
       [XDRV_GET_DEVICE_TYPE] = &ramdrv_get_device_type,
@@ -174,7 +174,7 @@ static void sys_device_init (void) {
       break;
   }
 
-  const size_t unpack_buffer_size = 1024 * 1024 * 15;
+  const size_t unpack_buffer_size = 1024 * 1024 * 16;
   uint8_t* unpack_buffer = malloc (unpack_buffer_size);
 
   LZ4F_decompressionContext_t dctx;
@@ -201,7 +201,7 @@ static void temp_device_init (void) {
   struct reschedule_ctx rctx;
   memset (&rctx, 0, sizeof (rctx));
 
-  device_op_func_t ops[] = {
+  static device_op_func_t ops[] = {
       [XDRV_GET_SIZE] = &ramdrv_get_size,
       [XDRV_GET_SECTOR_SIZE] = &ramdrv_get_sector_size,
       [XDRV_GET_DEVICE_TYPE] = &ramdrv_get_device_type,