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From: Todd Zullinger <tmz@pobox.com>
To: git@vger.kernel.org
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Junio C Hamano" <gitster@pobox.com>,
	"Petr Šplíchal" <psplicha@redhat.com>
Subject: [BUG] builtin/checkout.c:1098: should be able to skip past 'refs/heads/'
Date: Thu, 20 Jan 2022 11:51:37 -0500	[thread overview]
Message-ID: <YemTGQZ97vAPUPY0@pobox.com> (raw)

Hi,

A bug was filed in the Fedora/Red Hat bugzilla today for the
git 2.35.0 rc (rc1, but it's the same in rc2).  Petr (Cc'd),
ran the following

    git clone https://github.com/psss/fmf /tmp/fmf
    cd /tmp/fmf
    cp .git/refs/remotes/origin/HEAD .git/refs/heads/__DEFAULT__
    git checkout -f __DEFAULT__
    git checkout -f __DEFAULT__

The second git checkout call runs into the BUG() call added
in 9081a421a6 (checkout: fix "branch info" memory leaks,
2021-11-16):

    BUG: builtin/checkout.c:1098: should be able to skip
    past 'refs/heads/' in 'refs/remotes/origin/master'!
    Aborted (core dumped)

This worked in 2.34.1, so it's new to 2.35.0.  Should this
work or does the manual copy to setup a branch fall into a
new category of "don't do that"?

(It's novel to get a bug report from rc testing of a distro
build -- that doesn't happen often.)

-- 
Todd

             reply	other threads:[~2022-01-20 16:51 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-20 16:51 Todd Zullinger [this message]
2022-01-20 17:04 ` [BUG] builtin/checkout.c:1098: should be able to skip past 'refs/heads/' Todd Zullinger
2022-01-20 21:26 ` [PATCH] checkout: fix BUG() case in 9081a421a6 Ævar Arnfjörð Bjarmason
2022-01-20 22:29   ` Junio C Hamano
2022-01-20 22:33     ` Junio C Hamano
2022-01-21 11:14     ` Ævar Arnfjörð Bjarmason
2022-01-21 14:29       ` Petr Šplíchal
2022-01-21 21:58         ` Todd Zullinger
2022-01-21 21:19       ` Junio C Hamano
2022-01-20 22:33   ` Todd Zullinger
2022-01-22  0:33   ` Junio C Hamano
2022-01-22  0:45   ` Junio C Hamano
2022-01-22  0:58     ` [PATCH] checkout: avoid BUG() when hitting a broken repository Junio C Hamano
2022-01-22  8:10       ` Johannes Sixt
2022-01-22 11:55       ` Ævar Arnfjörð Bjarmason
2022-01-23 16:38       ` Johannes Schindelin

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