I thought I resolved this problem with an upgrade to version 1.6.3.2.306.g4f4fa I am getting this from git-gc in repositories that alternates: usage: git-pack-objects [{ -q | --progress | --all-progress }] [--max-pack-size=N] [--local] [--incremental] [--window=N] [--window-memory=N] [--depth=N] [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] [--threads=N] [--non-empty] [--revs [--unpacked | --all]*] [--reflog] [--stdout | base-name] [--include-tag] [--keep-unreachable | --unpack-unreachable] [<ref-list | <object-list] I tried running with GIT_TRACE=2 and I do not see anything glaring. sudo -u git -s 'export GIT_DIR='/docbuilder/git/repos/aimcore.git';export GIT_TRACE=2;git gc' trace: built-in: git 'gc' trace: run_command: 'reflog' 'expire' '--all' trace: exec: 'git' 'reflog' 'expire' '--all' trace: built-in: git 'reflog' 'expire' '--all' trace: run_command: 'repack' '-d' '-l' '-A' trace: exec: 'git' 'repack' '-d' '-l' '-A' trace: exec: 'git-repack' '-d' '-l' '-A' trace: built-in: git 'rev-parse' '--parseopt' '--' '-d' '-l' '-A' trace: built-in: git 'rev-parse' '--git-dir' trace: built-in: git 'config' '--bool' 'repack.usedeltabaseoffset' trace: built-in: git 'pack-objects' '--honor-pack-keep' '--non-empty' '--all' '--reflog' '--unpack-unreachable' '--local' '--delta-base-offset' '/docbuilder/git/repos/aimcore.git/objects/.tmp-13099-pack' usage: git-pack-objects [{ -q | --progress | --all-progress }] [--max-pack-size=N] [--local] [--incremental] [--window=N] [--window-memory=N] [--depth=N] [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] [--threads=N] [--non-empty] [--revs [--unpacked | --all]*] [--reflog] [--stdout | base-name] [--include-tag] [--keep-unreachable | --unpack-unreachable] [<ref-list | <object-list] error: failed to run repack -- 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