Does someone know how to debug this error message please?%IPRT-3-RIB_LOOP: Resolution loop formed by routes in RIBThis error message spread everywhere inside my network.thanks!!

hello,I meet a very strange problem about the cisco 7600 ES20 line card.I use: - Sup 720-3BXL(MSFC3) - ES20(20x1GE) 3CXLServices: -EVC 400(production) -SVI terminate the EVC links - MPLS VPN(20-30)The problem we met was that the ES20 crash very frequ...