[SLE] Suse 9.0 and Mantel's kernel 2.6.4 Oops at boot !!

I am using kraxel's 2.6.4 kernel without problem, as mentionned in Kraxel's page i came to Mantel's kernel and I get an Oops at boot while loading scsi tape module st.ko. What has to be done? I reported to Mantel and Kraxel. Thanks for help. Michel