TPM errors spam

[htruong]

There are a lot of tpm errors and complains. They seem to happen every two seconds in the klog.

$ dmesg | grep tpm
[    0.355647] tpm tpm0: A TPM error (256) occurred attempting get random
[    0.367915] tpm tpm0: A TPM error (256) occurred attempting get random
[    0.375008] tpm tpm0: A TPM error (256) occurred attempting get random
[    2.994841] tpm tpm0: A TPM error (256) occurred attempting get random