git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Stefan Beller <sbeller@google.com>
To: shentino@gmail.com
Cc: "Duy Nguyen" <pclouds@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	git <git@vger.kernel.org>
Subject: Re: [BUG] Segfault in "git submodule"
Date: Mon, 1 Oct 2018 12:19:42 -0700	[thread overview]
Message-ID: <CAGZ79kYX3ZgmE3S-2cq0F_27Ctq_wwuSo53znRrBquik3ODXew@mail.gmail.com> (raw)
In-Reply-To: <CAGDaZ_oS4bjzd67T5atJrJ6_x2Cfr8JgnoGWePzA53mb2ObdNg@mail.gmail.com>

On Sat, Sep 29, 2018 at 9:43 AM Raymond Jennings <shentino@gmail.com> wrote:
>
> I have a repo, but it appears to be specific to staging area state.
> It only segfaults when I have a certain file deleted.
>
> Where do you want me to upload it?
> On Sat, Sep 29, 2018 at 8:34 AM Duy Nguyen <pclouds@gmail.com> wrote:
> >
> > On Sat, Sep 29, 2018 at 5:31 PM Ævar Arnfjörð Bjarmason
> > <avarab@gmail.com> wrote:
> > > > #1  refs_resolve_ref_unsafe (refs=0x0,
> > > > refname=refname@entry=0x55e863062253 "HEAD",
> > > > resolve_flags=resolve_flags@entry=1, oid=oid@entry=0x7ffdc834b1c0,
> > > > flags=flags@entry=0x7ffdc834b1bc) at refs.c:1493
> >
> > refs is NULL. It looks like somebody fails to get the right submodule
> > ref store (or tries to get it but fails to check if it may return
> > NULL)

This is spot on.

Raymond, are you on Git v2.16.0 by any chance?
(and if now which version are you on).

I suspect 2.16, as that is a version of Git, in which there happens to be
a call into the refs subsystem in submodule--helper.c in line 624.

Is it possible to upgrade Git (to v2.18.0 or later) or cherry-pick
74b6bda32f (submodule: check for NULL return of get_submodule_ref_store(),
2018-03-28) into your copy of Git?

Thanks,
Stefan

  reply	other threads:[~2018-10-01 19:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-29 15:22 [BUG] Segfault in "git submodule" Raymond Jennings
2018-09-29 15:29 ` Ævar Arnfjörð Bjarmason
2018-09-29 15:33   ` Duy Nguyen
2018-09-29 16:43     ` Raymond Jennings
2018-10-01 19:19       ` Stefan Beller [this message]
2018-10-01 21:31         ` Raymond Jennings
2018-10-02  4:10           ` Raymond Jennings

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: http://vger.kernel.org/majordomo-info.html

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAGZ79kYX3ZgmE3S-2cq0F_27Ctq_wwuSo53znRrBquik3ODXew@mail.gmail.com \
    --to=sbeller@google.com \
    --cc=avarab@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=pclouds@gmail.com \
    --cc=shentino@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).