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diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 37427e4..08af9db 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2553,6 +2553,11 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
 
 	mutex_lock(&dev->struct_mutex);
 
+	/* We don't get the flushing right for these chipsets, use the
+	 * big hamer for now to avoid random crashiness. */
+	if (IS_I855(dev) || IS_I865G(dev))
+		wbinvd();
+
 	i915_verify_inactive(dev, __FILE__, __LINE__);
 
 	if (dev_priv->mm.wedged) {