On Tue, Aug 21 2018, Jeff King wrote: > +int bitmap_has_sha1_in_uninteresting(struct bitmap_index *bitmap_git, > + const unsigned char *sha1) > +{ > + int pos; > + > + if (!bitmap_git) > + return 0; /* no bitmap loaded */ > + if (!bitmap_git->result) > + BUG("failed to perform bitmap walk before querying"); Some part of what calls this completely breaks pushing from the "next" branch when you have local bitmaps (we *really* should have some tests for this...). I don't have time to dig now, but just on my local git.git on next @ b1634b371dc2e46f9b43c45fd1857c2e2688f96e: u git (next $=) $ git repack -Ad --window=10 --depth=10 --write-bitmap-index --pack-kept-objects Enumerating objects: 616909, done. Counting objects: 100% (616909/616909), done. Delta compression using up to 8 threads Compressing objects: 100% (146475/146475), done. Writing objects: 100% (616909/616909), done. Selecting bitmap commits: 168027, done. BBuilding bitmaps: 100% (338/338), done. Total 616909 (delta 497494), reused 582609 (delta 467530) u git (next $=) $ ./git --exec-path=$PWD push avar next:avar/next-push Enumerating objects: 1330, done. BUG: pack-bitmap.c:1132: failed to perform bitmap walk before querying error: pack-objects died of signal 6 error: pack-objects died of signal 6 error: remote unpack failed: eof before pack header was fully read error: failed to push some refs to 'git@xxxxxxxxxx:avar/git.git' Removing the bitmap makes it work again: u git (next $=) $ rm .git/objects/pack/pack-496088d9464cd79dfcac50dd0d72dcd6faee8253.bitmap rm: remove write-protected regular file '.git/objects/pack/pack-496088d9464cd79dfcac50dd0d72dcd6faee8253.bitmap'? y u git (next $=) $ ./git --exec-path=$PWD push avar next:avar/next-push Enumerating objects: 2834, done. Counting objects: 100% (1799/1799), done. Delta compression using up to 8 threads Compressing objects: 100% (591/591), done. Writing objects: 100% (1390/1390), 430.11 KiB | 15.36 MiB/s, done. Total 1390 (delta 1100), reused 1072 (delta 798) remote: Resolving deltas: 100% (1100/1100), completed with 214 local objects. To github.com:avar/git.git * [new branch] next -> avar/next-push Today I deployed next + my patches @ work. Broke pushes in one place where repacks were being done manually with --write-bitmap-index.