root@vdsdev3:~/src/git/linux-2.6# git bisect good v2.6.25-rc1 You need to start by "git bisect start" Do you want me to do it for you [Y/n]? root@vdsdev3:~/src/git/linux-2.6# git bisect bad v2.6.24 0d733ddb2026683da26c1722847b99911c43ccb5 was both good and bad