I have Gitlab on my Ubuntu server in production for 8 months. I can not clone or pull a repository (+/- 400mb), but other smaller repositories work normally.
I do not even know where to start to find the problem.
Note: I'm using TortoiseGit. When I ask for a pull, the status appears:
git.exe pull -v --no-rebase --progress "origin"
POST git-upload-pack (gzip 1057 to 604 bytes)
POST git-upload-pack (gzip 1157 to 653 bytes)
Do not get out of it.