From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Michael Haggerty <mhagger@alum.mit.edu>,
Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH v2 0/25] prune-safety
Date: Fri, 17 Oct 2014 00:49:11 -0400 [thread overview]
Message-ID: <20141017044910.GA12624@peff.net> (raw)
In-Reply-To: <CAPc5daX0AFv9jDrFyd_OnupW5AfZW9Je_rgzaViX_xxs3SG5zg@mail.gmail.com>
On Thu, Oct 16, 2014 at 09:13:39PM -0700, Junio C Hamano wrote:
> Just being curious, but would the same bug, if allowed to be triggered
> cutting repacking of your repository, have corrupted the resulting bitmap?
I didn't test, but yes, almost certainly. The bug was in list-objects.c,
which is used by pack-objects to generate the list of objects to pack,
as well as to build the bitmaps. So not only would it have corrupted the
bitmaps, a `git repack -ad`[1] would have dropped the object completely,
corrupting the repository!
-Peff
[1] git-gc uses `repack -Ad`, of course. So assuming you had packed more
recently than 2 weeks ago, it would have just been ejected to a
loose object. Small comfort. :)
-Peff
next prev parent reply other threads:[~2014-10-17 4:49 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-15 22:32 [PATCH v2 0/25] prune-safety Jeff King
2014-10-15 22:33 ` [PATCH v2 01/25] foreach_alt_odb: propagate return value from callback Jeff King
2014-10-15 22:34 ` [PATCH v2 02/25] isxdigit: cast input to unsigned char Jeff King
2014-10-16 17:16 ` Junio C Hamano
2014-10-15 22:34 ` [PATCH v2 03/25] object_array: factor out slopbuf-freeing logic Jeff King
2014-10-16 17:39 ` Junio C Hamano
2014-10-17 0:33 ` git-bundle rev handling and de-duping Jeff King
2014-10-17 21:03 ` Philip Oakley
2014-10-17 22:41 ` Junio C Hamano
2014-10-15 22:34 ` [PATCH v2 04/25] object_array: add a "clear" function Jeff King
2014-10-15 22:35 ` [PATCH v2 05/25] clean up name allocation in prepare_revision_walk Jeff King
2014-10-15 22:37 ` [PATCH v2 06/25] reachable: use traverse_commit_list instead of custom walk Jeff King
2014-10-16 17:53 ` Junio C Hamano
2014-10-15 22:38 ` [PATCH v2 07/25] reachable: reuse revision.c "add all reflogs" code Jeff King
2014-10-15 22:38 ` [PATCH v2 08/25] prune: factor out loose-object directory traversal Jeff King
2014-10-15 22:40 ` [PATCH v2 09/25] reachable: mark index blobs as SEEN Jeff King
2014-10-15 22:40 ` [PATCH v2 10/25] prune-packed: use for_each_loose_file_in_objdir Jeff King
2014-10-15 22:40 ` [PATCH v2 11/25] count-objects: do not use xsize_t when counting object size Jeff King
2014-10-15 22:41 ` [PATCH v2 12/25] count-objects: use for_each_loose_file_in_objdir Jeff King
2014-10-15 22:41 ` [PATCH v2 13/25] sha1_file: add for_each iterators for loose and packed objects Jeff King
2014-10-15 22:41 ` [PATCH v2 14/25] prune: keep objects reachable from recent objects Jeff King
2014-10-15 22:41 ` [PATCH v2 15/25] pack-objects: refactor unpack-unreachable expiration check Jeff King
2014-10-15 22:42 ` [PATCH v2 16/25] pack-objects: match prune logic for discarding objects Jeff King
2014-10-15 22:42 ` [PATCH v2 17/25] write_sha1_file: freshen existing objects Jeff King
2014-10-15 22:42 ` [PATCH v2 18/25] make add_object_array_with_context interface more sane Jeff King
2014-10-15 22:43 ` [PATCH v2 19/25] traverse_commit_list: support pending blobs/trees with paths Jeff King
2014-10-15 22:43 ` [PATCH v2 20/25] rev-list: document --reflog option Jeff King
2014-10-15 22:44 ` [PATCH v2 21/25] rev-list: add --index-objects option Jeff King
2014-10-16 18:41 ` Junio C Hamano
2014-10-17 0:12 ` Jeff King
2014-10-17 0:43 ` Jeff King
2014-10-17 0:44 ` [PATCH v3 22/26] rev-list: add --indexed-objects option Jeff King
2014-10-17 0:44 ` [PATCH v3 23/26] reachable: use revision machinery's --indexed-objects code Jeff King
2014-10-17 0:44 ` [PATCH v3 24/26] pack-objects: use argv_array Jeff King
2014-10-17 0:44 ` [PATCH v3 25/26] repack: pack objects mentioned by the index Jeff King
2014-10-17 0:44 ` [PATCH v3 26/26] pack-objects: double-check options before discarding objects Jeff King
2014-10-15 22:44 ` [PATCH v2 22/25] reachable: use revision machinery's --index-objects code Jeff King
2014-10-15 22:45 ` [PATCH v2 23/25] pack-objects: use argv_array Jeff King
2014-10-15 22:46 ` [PATCH v2 24/25] repack: pack objects mentioned by the index Jeff King
2014-10-15 22:48 ` [PATCH v2 25/25] pack-objects: double-check options before discarding objects Jeff King
2014-10-16 21:07 ` [PATCH v2 0/25] prune-safety Junio C Hamano
2014-10-16 21:10 ` Junio C Hamano
2014-10-16 21:21 ` Jeff King
2014-10-16 21:39 ` Jeff King
2014-10-16 22:18 ` Junio C Hamano
2014-10-17 0:03 ` Jeff King
[not found] ` <CAPc5daX0AFv9jDrFyd_OnupW5AfZW9Je_rgzaViX_xxs3SG5zg@mail.gmail.com>
2014-10-17 4:49 ` Jeff King [this message]
2014-10-18 12:31 ` Jeff King
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