On Wed, Aug 15, 2018 at 10:11:20AM +1000, Stephen Rothwell wrote: > Hi Bruce, > > On Tue, 14 Aug 2018 13:50:20 -0700 Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote: > > > > On Tue, Aug 14, 2018 at 12:11 PM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote: > > > On Mon, Aug 13, 2018 at 06:33:02AM -0700, syzbot wrote: > > >> syzbot has found a reproducer for the following crash on: > > >> > > >> HEAD commit: 5ed5da74de9e Add linux-next specific files for 20180813 > > >> git tree: linux-next > > > > > > I fetched linux-next but don't have 5ed5da74de9e. > > > > +Stephen for the disappeared linux-next commit. > > That is just the HEAD commit on linux-next that day. If you fetched > linux-next after I released next-20180814 yesterday, then it would have > a different HEAD commit. If you check out the tag next-20180813, you > will get the above HEAD commit. > > > On the dashboard link you can see that it also happened on a more > > recent commit 4e8b38549b50459a22573d756dd1f4e1963c2a8d that I do see > > now in linux-next. > > Which is just the HEAD commit of next-20180814. > > Linux-next is rebuilt every day based on Linus' tree of the day, > followed by merging all the other branches, so its HEAD is different > every day. I new it was rebuilt every day, but for some reason I expected git to fetch all new tags. But that's wrong, it just fetches whatever branch(es) you request and then only tags that happen to reference stuff on that branch; from git-fetch(1): "By default, any tag that points into the histories being fetched is also fetched; the effect is to fetch tags that point at branches that you are interested in. This default behavior can be changed by using the --tags or --no-tags options or by configuring remote.<name>.tagOpt. By using a refspec that fetches tags explicitly, you can fetch tags that do not point into branches you are interested in as well." Sorry for the confusion! --b.
