Fallback to regular op when fp8 op throws exception. (comfyanonymous#8761)

Author: comfyanonymous

comfy/ops.py

@@ -336,9 +336,12 @@ def reset_parameters(self):
             return None
 
         def forward_comfy_cast_weights(self, input):
-            out = fp8_linear(self, input)
-            if out is not None:
-                return out
+            try:
+                out = fp8_linear(self, input)
+                if out is not None:
+                    return out
+            except Exception as e:
+                logging.info("Exception during fp8 op: {}".format(e))
 
             weight, bias = cast_bias_weight(self, input)
             return torch.nn.functional.linear(input, weight, bias)