git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Elijah Newren <newren@gmail.com>
To: Sergio Durigan Junior <sergiodj@sergiodj.net>
Cc: Duy Nguyen <pclouds@gmail.com>, Git Mailing List <git@vger.kernel.org>
Subject: Re: Possible race condition with git-rebase + .git/index.lock
Date: Tue, 12 Mar 2019 12:39:04 -0700	[thread overview]
Message-ID: <CABPp-BH2k2yz-MrEvN2dX1jLVJydxOBv-bu-H5M_SXO_aLK8hw@mail.gmail.com> (raw)
In-Reply-To: <8736nr6g94.fsf@sergiodj.net>

On Tue, Mar 12, 2019 at 12:32 PM Sergio Durigan Junior
<sergiodj@sergiodj.net> wrote:
>
> On Tuesday, March 12 2019, Elijah Newren wrote:
>
> > On Tue, Mar 12, 2019 at 9:48 AM Sergio Durigan Junior
> > <sergiodj@sergiodj.net> wrote:
> >> On Tuesday, March 12 2019, Duy Nguyen wrote:
> >>
> >> > On Tue, Mar 12, 2019 at 5:18 AM Sergio Durigan Junior
> >> > <sergiodj@sergiodj.net> wrote:
> >> >> This works without problems most of the time (well, usually there are
> >> >> conflicts and all, but that's a burden I have to carry).  However,
> >> >> sometimes I notice that git fails with:
> >> >>
> >> >>   # git rebase origin/master
> >> >>   ...
> >> >>   Applying: commitX
> >> >>   Applying: commitY
> >> >>   Applying: commitZ
> >> >>   fatal: Unable to create '/home/xyz/dir1/dir2/.git/index.lock': File exists.
> >> >>
> >> >> The first thing I did was to check whether the index.lock file existed,
> >> >> but it doesn't.
> >> >
> >> > Is the output this clean? What I'm looking for is signs of automatic
> >> > garbage collection kicking in the middle of the rebase. Something like
> >> > "Auto packing the repository blah blah for optimum performance".
> >>
> >> Yeah, this is the exact output.  I also thought about "git gc", but I
> >> don't see any output related to it.  Is it possible that it's being
> >> executed in the background and not printing anything?
> >
> > Any chance you have a cronjob or other task execution mechanism that
> > is running git commands in various directories (even simple commands
> > like 'git status' since it's not read-only contrary to what some
> > expect, or 'git fetch' which might trigger a background gc)?
>
> Nope, nothing like this.  AFAIK, nothing is touching that repository at
> the same time that I am.  Besides, even if I wait some minutes before
> trying again, the bug manifests again.

Well, even though you didn't see the output Duy was looking for, if
you set gc.auto to 0 and gc.autoPackLimit to 0 (and maybe
gc.autoDetach to false just for good measure), does the problem still
occur?

  reply	other threads:[~2019-03-12 19:39 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-11 21:38 Possible race condition with git-rebase + .git/index.lock Sergio Durigan Junior
2019-03-11 22:50 ` Eric Sunshine
2019-03-11 22:53   ` Sergio Durigan Junior
2019-03-12 10:28 ` Duy Nguyen
2019-03-12 16:45   ` Sergio Durigan Junior
2019-03-12 19:23     ` Elijah Newren
2019-03-12 19:32       ` Sergio Durigan Junior
2019-03-12 19:39         ` Elijah Newren [this message]
2019-03-12 19:58           ` Sergio Durigan Junior
2019-03-13 20:40         ` Phillip Wood
2019-03-13 20:48           ` Sergio Durigan Junior
2019-03-13 20:59             ` Jeff King
2019-03-13 21:07               ` Sergio Durigan Junior
2022-10-28 16:04                 ` Possible race condition with git-rebase + .git/index.lock - probably a gettext issue Mingun

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=CABPp-BH2k2yz-MrEvN2dX1jLVJydxOBv-bu-H5M_SXO_aLK8hw@mail.gmail.com \
    --to=newren@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=pclouds@gmail.com \
    --cc=sergiodj@sergiodj.net \
    /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).