Hi Andrew, It's probably a bug fix that unveils the link errors. tree: git://git.cmpxchg.org/linux-mmotm.git master head: c7d9284ee4a63d6419a16b75fe101bad8235b98b commit: 9b66564f7a0bd9063f56f209606c046c52fecde9 [206/224] linux-next-git-rejects config: i386-allmodconfig (attached as .config) reproduce: git checkout 9b66564f7a0bd9063f56f209606c046c52fecde9 # save the attached .config to linux build tree make ARCH=i386 All error/warnings: >> ERROR: "__udivdi3" undefined! --- 0-DAY kernel test infrastructure Open Source Technology Center http://lists.01.org/mailman/listinfo/kbuild Intel Corporation