Re: Possible race condition with git-rebase + .git/index.lock
- From
- Phillip Wood <phillip.wood123@gmail.com>
- Date
- Mar 13, 2019, 20:40 UTC
- Message-ID
- <e0e1e159-844d-c9bf-e1cc-ada05384ef76@gmail.com>
- In-Reply-To
- <8736nr6g94.fsf@sergiodj.net>
Hi Sergio
On 12/03/2019 19:32, Sergio Durigan Junior wrote:
Show 39 quoted lines
> 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.
Best Wishes
Phillip