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From: Rich <forums@artfulrobot.uk>
To: git@vger.kernel.org
Subject: Segfault during fsck and spreading brokenness
Date: Fri, 25 Sep 2020 16:48:39 +0100	[thread overview]
Message-ID: <2aa62ff7-0780-8e20-e87d-387152524971@artfulrobot.uk> (raw)

I was encouraged by a couple of people on stackoverflow to post to this 
list. Apols in advance if it's not the right place.


I encountered a Segfault during fsck on a damaged bare repo (probably 
due to a powercut. Possibly during an operation, although not sure):

git --version
git version 2.11.0

git fsck --full -v
Checking HEAD link
Checking object directory
Checking tree 11bbc847cf1b4422b3e37830a9eac2e7af6559de
Checking tree 11be4abeb20314de6145dfc0e6180807a74c03dc
--->8 snip 8<---------------------------------------------------------------
Checking tree 14a4423e86f06c7ad75bf391d138e0cf7790508f
Checking tree 147aeaec72b2f29bf1813494c942fbce497be679
zsh: segmentation fault  git fsck --full -v

Host: Debian 10. Linux 4.9.0-13-amd64 #1 SMP Debian 4.9.228-1 
(2020-07-05) x86_64 GNU/Linux

FS: BTRFS


I learnt about the damage while trying to `git push`  from my dev 
working tree. I think I did a `git pull` when the `git push` failed. The 
result of this was that my *local* repo was also damaged: there was an 
empty file created that would stop git operations and on deleting that I 
got a page full of errors.

Original SO question: 
https://stackoverflow.com/questions/64044995/can-one-corrupt-git-repo-corrupt-another?noredirect=1


Unfortunately I don't think I'm at liberty to give access to the repo as 
it possibly contains sensitive info/personal data.

I have solved the problem for myself (took a morning to do it!) but 
reporting here in case it's useful to do so. I use git all the time and 
I'm grateful for it. I'm not a systems-level coder, so not sure what use 
I'll be, but happy to answer any Qs or try things on the broken copies.


Thanks,

Rich


             reply	other threads:[~2020-09-25 16:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-25 15:48 Rich [this message]
2020-09-25 17:47 ` Segfault during fsck and spreading brokenness Jeff King
2020-09-28  6:43   ` Rich

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