Hi!
I also have a similar error with SPA-1X10GE-L-V2 but in ASR1006 and S.O. Version 16.09.06, I saw this log:
MST: %ETH_SPA_MAC-3-UNREC_ECC_ERR: SIP1/2: Marvel MAC : An unrecoverable ECC error occured in the MAC
Does anybody knows why this could happened, or if this is related to a bug or hardware failure?
BTW.- this failure was resolved by reloading SPA.