Data Cache Push Parity Error

Hi all, I am using P2020 with Linux kernel 3.8.13. Sometimes my system encounters machine check exception and it shows “Caused by (from MCSR=2000): Data Cache Push Parity Error”. Could anyone show me some hints to dig into this issue? Any comment is welcome. Thanks in advance.

MPC8548 eTsec

Dear All: I am using linux 2.6.14.5 (with many modification) and MPC8548. Sometimes(very rare) the nic will boot up with rx problem. (tx is just fine) I see pkts are all dropped in chip but no any RX or BSY interrupt are ever raised. (Receive Drop Counter is increased) If I down and up the nic, t