Comment 3 for bug 1928207

Unfortunately, I don't see anything that looks wrong in the files you pasted. I'm not sure what the problem is and I'm unable to support that old of an openwrt distro kernel at this time.

I suggest testing different ciphers and different key lengths to see if there's any difference. Judging by the log messages you pasted (are those complete? are you sure there wasn't one more messages before what you pasted?), then the error is coming from the crypto API's crypto_ablkcipher_encrypt() function which eCryptfs uses to encrypt a page of data.

Were you using eCryptfs previously and it broke when upgrading to a new kernel version or is this the first time you're trying to set up eCryptfs?