Bug - git fsck never ending on git-for-windows

Bug - git fsck never ending on git-for-windows

[Pascal Chambon]

What did you do before the bug happened? (Steps to reproduce your issue)

 > I launched "git fsck" (with various arguments)

What did you expect to happen? (Expected behavior)

 > A long run of fsck and then it's over

What happened instead? (Actual behavior)

 > A (seemingly) neverending run of fsck, exceeding the expected count 
of objects to check:
 > $ git fsck
 > Checking ref database: 100% (1/1), done.
 > Checking object directories: 100% (256/256), done.
 > Checking objects: 190% (54090/28351)        -->  (process still 
turning...)

What's different between what you expected and what actually happened?

 > Normal, finished fsck run, vs neverending checking of objects.

Anything else you want to add:

 > This is a quite old repository (from 2012) with quite heavy media 
files in it (70 GB total).
 > I've tried to "git gc --aggressive", it worked, and pack files are 
numerous and about the same size, but the fsck anomally remains.


[System Info]
git version:
git version 2.53.0.windows.2
cpu: x86_64
built from commit: e9edee0b34751bf4d7d1feda0e2535bff64d4e77
sizeof-long: 4
sizeof-size_t: 8
rust: disabled
feature: fsmonitor--daemon
gettext: enabled
libcurl: 8.18.0
OpenSSL: OpenSSL 3.5.5 27 Jan 2026
zlib: 1.3.1
SHA-1: SHA1_DC
SHA-256: SHA256_BLK
default-ref-format: files
default-hash: sha1
uname: Windows 10.0 26200 -> actually Windows 11 Professionnel 25H2
compiler info: gnuc: 15.2
libc info: no libc information available
$SHELL (typically, interactive shell): <unset>


[Enabled Hooks]
(none)

Re: Bug - git fsck never ending on git-for-windows

[Patrick Steinhardt]

On Fri, Apr 10, 2026 at 09:20:20AM +0200, Pascal Chambon wrote:
> 
> What did you do before the bug happened? (Steps to reproduce your issue)
> 
> > I launched "git fsck" (with various arguments)
> 
> What did you expect to happen? (Expected behavior)
> 
> > A long run of fsck and then it's over
> 
> What happened instead? (Actual behavior)
> 
> > A (seemingly) neverending run of fsck, exceeding the expected count of
> objects to check:
> > $ git fsck
> > Checking ref database: 100% (1/1), done.
> > Checking object directories: 100% (256/256), done.
> > Checking objects: 190% (54090/28351)        -->  (process still
> turning...)
> 
> What's different between what you expected and what actually happened?
> 
> > Normal, finished fsck run, vs neverending checking of objects.
> 
> Anything else you want to add:
> 
> > This is a quite old repository (from 2012) with quite heavy media files in
> it (70 GB total).
> > I've tried to "git gc --aggressive", it worked, and pack files are
> numerous and about the same size, but the fsck anomally remains.

This strongly reminds me of the issue fixed in 13eb65d366 (pack-check:
fix verification of large objects, 2026-02-23), which is going to be
released with Git 2.54. Could you maybe verify whether that commit fixes
the issue you're observing?

Thanks!

Patrick