From: Junio C Hamano <gitster@pobox•com>
To: Jeff King <peff@peff•net>
Cc: "René Scharfe" <l.s.r@web•de>,
git@vger•kernel.org, "Michael Haggerty" <mhagger@alum•mit.edu>
Subject: Re: [PATCH 0/16] make prune mtime-checking more careful
Date: Wed, 08 Oct 2014 10:03:21 -0700 [thread overview]
Message-ID: <xmqq38aycx46.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <20141008083109.GA3767@peff.net> (Jeff King's message of "Wed, 8 Oct 2014 04:31:09 -0400")
Jeff King <peff@peff•net> writes:
> So that explains that bug (as a side note, you might think that if we
> are flipping return values, lots of things would fail when they ask "do
> we have this packed object" and it erroneously says "yes". But that does
> not happen. The wrong return value comes from freshening the file, so we
> only flip "yes" to "no", and never the opposite).
> ...
> When dt/cache-tree-repair is merged, we have a valid cache tree when we
> run "git commit", and we realize that we do not need to write out the
> tree object at all. Thus we never hit the buggy code, the object isn't
> created, and the subsequent prune reports that there is nothing to
> prune.
Wow, that is a tricky "bug" (rather the series with the bug failed
to fail when applied to 'master', so it is an "unbug" that hides a
bug) to hunt down. Thanks for digging.
prev parent reply other threads:[~2014-10-08 17:03 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-03 20:20 [PATCH 0/16] make prune mtime-checking more careful Jeff King
2014-10-03 20:21 ` [PATCH 01/16] foreach_alt_odb: propagate return value from callback Jeff King
2014-10-03 22:55 ` René Scharfe
2014-10-04 0:31 ` Jeff King
2014-10-03 20:22 ` [PATCH 02/16] isxdigit: cast input to unsigned char Jeff King
2014-10-03 20:22 ` [PATCH 03/16] object_array: factor out slopbuf-freeing logic Jeff King
2014-10-07 11:25 ` Michael Haggerty
2014-10-08 7:36 ` Jeff King
2014-10-08 8:40 ` Michael Haggerty
2014-10-08 8:55 ` Jeff King
2014-10-03 20:22 ` [PATCH 04/16] object_array: add a "clear" function Jeff King
2014-10-03 20:23 ` [PATCH 05/16] clean up name allocation in prepare_revision_walk Jeff King
2014-10-03 20:24 ` [PATCH 06/16] reachable: clear pending array after walking it Jeff King
2014-10-03 20:25 ` [PATCH 07/16] t5304: use test_path_is_* instead of "test -f" Jeff King
2014-10-03 22:12 ` Junio C Hamano
2014-10-03 20:27 ` [PATCH 08/16] t5304: use helper to report failure of "test foo = bar" Jeff King
2014-10-03 22:17 ` Junio C Hamano
2014-10-04 0:13 ` Jeff King
2014-10-07 13:21 ` Michael Haggerty
2014-10-07 17:29 ` Junio C Hamano
2014-10-07 20:18 ` Jeff King
2014-10-07 20:35 ` Junio C Hamano
2014-10-07 21:29 ` Jeff King
2014-10-07 21:53 ` Junio C Hamano
2014-10-07 22:17 ` Michael Haggerty
2014-10-08 1:13 ` Jeff King
2014-10-08 16:58 ` Junio C Hamano
2014-10-07 21:16 ` Junio C Hamano
2014-10-03 20:29 ` [PATCH 09/16] prune: factor out loose-object directory traversal Jeff King
2014-10-03 22:19 ` Junio C Hamano
2014-10-04 0:24 ` Jeff King
2014-10-07 14:07 ` Michael Haggerty
2014-10-08 7:33 ` Jeff King
2014-10-03 20:31 ` [PATCH 10/16] count-objects: do not use xsize_t when counting object size Jeff King
2014-10-03 20:31 ` [PATCH 11/16] count-objects: use for_each_loose_file_in_objdir Jeff King
2014-10-03 20:32 ` [PATCH 12/16] sha1_file: add for_each iterators for loose and packed objects Jeff King
2014-10-05 8:15 ` René Scharfe
2014-10-05 10:47 ` Ramsay Jones
2014-10-03 20:39 ` [PATCH 13/16] prune: keep objects reachable from recent objects Jeff King
2014-10-03 21:47 ` Junio C Hamano
2014-10-04 0:09 ` Jeff King
2014-10-04 0:30 ` Jeff King
2014-10-04 3:04 ` Junio C Hamano
2014-10-07 16:29 ` Michael Haggerty
2014-10-08 7:19 ` Jeff King
2014-10-08 10:37 ` Michael Haggerty
2014-10-03 20:39 ` [PATCH 14/16] pack-objects: refactor unpack-unreachable expiration check Jeff King
2014-10-03 20:40 ` [PATCH 15/16] pack-objects: match prune logic for discarding objects Jeff King
2014-10-03 20:41 ` [PATCH 16/16] write_sha1_file: freshen existing objects Jeff King
2014-10-03 21:29 ` Junio C Hamano
2014-10-04 0:01 ` Jeff King
2014-10-05 9:12 ` René Scharfe
2014-10-03 22:20 ` [PATCH 0/16] make prune mtime-checking more careful Junio C Hamano
2014-10-04 22:22 ` Junio C Hamano
2014-10-05 9:19 ` René Scharfe
2014-10-06 1:42 ` Jeff King
2014-10-08 8:31 ` Jeff King
2014-10-08 17:03 ` Junio C Hamano [this message]
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