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From: "brian m. carlson" <sandals@crustytoothpaste•net>
To: Patrick Steinhardt <ps@pks•im>
Cc: git@vger•kernel.org, Junio C Hamano <gitster@pobox•com>
Subject: Re: [PATCH] fsck: do not loop infinitely when processing packs
Date: Tue, 24 Feb 2026 22:23:32 +0000	[thread overview]
Message-ID: <aZ4k5C_i_rK_yq68@fruit.crustytoothpaste.net> (raw)
In-Reply-To: <aZwTPfmyrFp-QAPq@pks.im>

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On 2026-02-23 at 08:43:41, Patrick Steinhardt wrote:
> Typically, we don't execute `find_pack_entry()` at all when verifying
> packfiles as we iterate through objects in packfile order. We thus don't
> have to look up objects via their object ID, but instead we do so by
> using their packfile offset. And this mechanism will not end up in
> `find_pack_entry()`, and thus we wouldn't update the MRU.

If you're thinking about `nth_packed_object_id`, that is index (object
ID) order, not packfile order.  I actually made this mistake when
writing the interop code and having that function operate in pack order
breaks a surprising number of things in very subtle ways, notably
generating multi-pack indexes.

I will be sending a patch in the future documenting that requirement
clearly.

> I've got a couple patches in the making that'll fix this.

I'm happy to drop this patch in favour of yours.  Thanks for a quick
response.
-- 
brian m. carlson (they/them)
Toronto, Ontario, CA

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  parent reply	other threads:[~2026-02-24 22:23 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-22 18:37 [PATCH] fsck: do not loop infinitely when processing packs brian m. carlson
2026-02-22 22:39 ` Junio C Hamano
2026-02-22 23:07   ` brian m. carlson
2026-02-23  7:12     ` Jeff King
2026-02-23  8:46       ` Patrick Steinhardt
2026-02-23  9:25         ` Jeff King
2026-02-23  9:36           ` Patrick Steinhardt
2026-02-23  9:46             ` Jeff King
2026-02-23 15:49       ` Junio C Hamano
2026-02-23  8:43 ` Patrick Steinhardt
2026-02-23  9:27   ` Jeff King
2026-02-23  9:53   ` Patrick Steinhardt
2026-02-24 22:23   ` brian m. carlson [this message]
2026-02-24 22:32     ` Junio C Hamano

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