SHA256_RSA. INPUT DATA RANGE ERROR

[spidemen]

I have 300 kb data, need to be signed by SHA256RSA algorithm. I read the data from a file with 'rb' option and then use this data as input for sign method , then I got following error. Any idea how to fix this bug, what is max length of input sign data, I search some pkcs11 and find that. there is no any limit for input data length

File "/usr/local/lib/python3.7/site-packages/pkcs11/types.py", line 939, in sign return self._sign(data, **kwargs) File "pkcs11/_pkcs11.pyx", line 1072, in pkcs11._pkcs11.SignMixin._sign File "pkcs11/_pkcs11.pyx", line 1077, in pkcs11._pkcs11.SignMixin._sign File "pkcs11/_errors.pyx", line 88, in pkcs11._pkcs11.assertRV pkcs11.exceptions.DataLenRange