From: Sergio Durigan Junior <sergiodj@sergiodj.net>
To: Phillip Wood <phillip.wood123@gmail.com>
Cc: Elijah Newren <newren@gmail.com>,
phillip.wood@dunelm.org.uk, Duy Nguyen <pclouds@gmail.com>,
Git Mailing List <git@vger.kernel.org>
Subject: Re: Possible race condition with git-rebase + .git/index.lock
Date: Wed, 13 Mar 2019 16:48:36 -0400 [thread overview]
Message-ID: <87pnqu4i1n.fsf@sergiodj.net> (raw)
In-Reply-To: <e0e1e159-844d-c9bf-e1cc-ada05384ef76@gmail.com> (Phillip Wood's message of "Wed, 13 Mar 2019 20:40:32 +0000")
On Wednesday, March 13 2019, Phillip Wood wrote:
> Hi Sergio
>
> On 12/03/2019 19:32, Sergio Durigan Junior 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.
>>
>
> Do you have any of the files in the repository open in an editor or
> ide while you are rebasing? I have seen this message when rebasing and
> one of the files is open in emacs which runs git status when it sees a
> file has changed which locks the index while the rebase is running.
Hey Phillip,
Huh, I do have some of the files opened in Emacs! They're in
background, but indeed, now that you mentioned I remember that Emacs
keeps track of changes and invokes "git status" sometimes. Next time I
see the bug, I'll try closing the files and see if it happens again.
Thanks for the insight!
--
Sergio
GPG key ID: 237A 54B1 0287 28BF 00EF 31F4 D0EB 7628 65FC 5E36
Please send encrypted e-mail if possible
http://sergiodj.net/
next prev parent reply other threads:[~2019-03-13 20:48 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
2019-03-12 19:58 ` Sergio Durigan Junior
2019-03-13 20:40 ` Phillip Wood
2019-03-13 20:48 ` Sergio Durigan Junior [this message]
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
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