diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 22b8b27..9d41208 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -192,7 +192,7 @@
 {
 	int err = -EBADRQC;
 
-	gru_dbg(grudev, "file %p\n", file);
+	gru_dbg(grudev, "file %p, req 0x%x, 0x%lx\n", file, req, arg);
 
 	switch (req) {
 	case GRU_CREATE_CONTEXT: