On Sun, Jan 03, 2021 at 11:50:35AM -0500, Stefan Monnier wrote: > >> FWIW, I just tried it with > >> > >> git clone --shared ~otheruser/nongnu > >> > >> and got the same result. > >> I also tried with another repository, still with the same result (tho > >> different pack.idx names, of course). > > > > I've tried several times to reproduce this, but I am unable to do so. You may > > need to provide the tarball with ~otheruser/nongnu contents for someone to be > > able to properly debug this. > > OK, you can try with the following tarball: > > https://www.iro.umontreal.ca/~monnier/nongnu.tar.gz Great, thank you for providing that. At this point, I can verify the behaviour you are seeing: $ cat .git/objects/info/alternates /tmp/test/nongnu/.git/objects $ git gc Enumerating objects: 119, done. Nothing new to pack. warning: unable to unlink '/tmp/test/nongnu/.git/objects/pack/pack-0d85e74ac2f7e51ce26f281e64eb738e8182fa95.idx': Permission denied warning: unable to unlink '/tmp/test/nongnu/.git/objects/pack/pack-5fe14feff49ccdee5469af9dc94f6784e8464a6b.idx': Permission denied Notably, if I run repack/prune by themselves, this does not happen: $ git repack -Adln Enumerating objects: 119, done. Nothing new to pack. $ git prune --expire=now $ I would guess that this is happening in builtin/gc.c#686 [1], where it calls clean_pack_garbage(). Running "git count-objects -v" shows: $ git count-objects -v warning: no corresponding .pack: /tmp/test/nongnu/.git/objects/pack/pack-0d85e74ac2f7e51ce26f281e64eb738e8182fa95.idx warning: no corresponding .pack: /tmp/test/nongnu/.git/objects/pack/pack-5fe14feff49ccdee5469af9dc94f6784e8464a6b.idx count: 0 size: 0 in-pack: 0 packs: 0 size-pack: 0 prune-packable: 0 garbage: 2 size-garbage: 6573 alternate: /tmp/test/nongnu/.git/objects I agree with Stefan that this is undesired behaviour, even when it only happens when attempting to clean up garbage -- git-gc (and git-count-objects) should distinguish between garbage in the parent repository and its own repository and not attempt any modification of the parent repository during gc or any other operation. [1] https://git.kernel.org/pub/scm/git/git.git/tree/builtin/gc.c#n686 -K
