1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index ec3cc1b..ae3e118 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -25,6 +25,7 @@
 #include <stdbool.h>
 #include "glheader.h"
 #include "api_validate.h"
+#include "arrayobj.h"
 #include "bufferobj.h"
 #include "context.h"
 #include "imports.h"
@@ -119,6 +120,12 @@ check_valid_to_render(struct gl_context *ctx, const char *function)
       unreachable("Invalid API value in check_valid_to_render()");
    }
 
+   if (!_mesa_all_buffers_are_unmapped(ctx->Array.VAO)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "%s(vertex buffers are mapped)", function);
+      return false;
+   }
+
    return true;
 }