On Thu 26-02-15 14:35:34, Michal Hocko wrote: > Hi, > I have just encountered an old kernel git commit: > commit c854363e80b49dd04a4de18ebc379eb8c8806674 > Author: Dave Chinner <david@xxxxxxxxxxxxx> > Date: Sat Feb 6 12:39:36 2010 +1100 > > xfs: Use delayed write for inodes rather than async V2 > [...] OK, I've managed to recreate this in a simple repo with 3 commits: $ git log --format="%H %cd" ab0efec2b697f2f9f864bb0e2cd77308d1f04561 Thu Feb 26 15:18:36 2015 +0100 d63972e4e4e7eda0444e56739ad09bfbc476b9bd Wed Feb 26 15:18:30 2014 +0100 108a0d5972fd2e5f25b2f38cfd2fee73031ff9d3 Thu Feb 26 14:57:29 2015 +0100 The commit in the middle was ammended to have committer date in the past. $ git describe --contains d63972e4e4e7eda0444e56739ad09bfbc476b9bd tag~1 but $ git describe --contains 108a0d5972fd2e5f25b2f38cfd2fee73031ff9d3 fatal: cannot describe '108a0d5972fd2e5f25b2f38cfd2fee73031ff9d3' I guess this is the same issue reported previously here: http://git.661346.n2.nabble.com/git-describe-contains-fails-on-given-tree-td5448286.html Can this be fixed somehow or it would lead to other kind of issues? -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html