Remote hung up during `git fetch`

[Yichao Yu <yyc1992@gmail.com>]

Hi everyone,

I want to build packages for snap shoot of different branches from
different remote git repositories in the same local directory (so that
I don't need to recompile everything everytime.) and I am using a
combination of `git clone/checkout/reset/fetch` to do that. However,
during git-fetch, the remote sometimes stop responding or simply reset
the connection. This happens occasionally at least for both ssh and
git protocol (not sure about http/https) on github, bitbucket and also
kernel.org so I think it is probably not due to a weird behavior of a
certain host. Does anyone know the reason or is there anything I have
done wrong? And is there a better way to set the local tree to a
certain branch at a certain url? THX

My git version is ArchLinux package 1.8.0-1. (timezone
America/New_York in case the time stamp somehow matters)

Here is a script that always triggers the issue (at least now) and
it's output. (No I am not trying to merge git and the kernel... These
are just random public repos on kernel.org that can trigger the issue.
Although I am pulling from two repos from different project here, the
same thing can also happen on other hosts when the two repos are
actually the same project)

Yichao Yu

------------------------------------------------------------------

#!/bin/bash

repo_name=git
# remote1='git://github.com/torvalds/linux.git'
remote1='git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git'
branch1='master'
# remote2='git://github.com/git/git.git'
remote2='git://git.kernel.org/pub/scm/git/git.git'
branch2='next'

git clone --depth 1 --single-branch --branch "$branch1" "$remote1" "$repo_name"
cd "$repo_name"
git fetch -vvv "$remote2" # "$branch2:$branch2"

-----------------------------------------------

Cloning into 'git'...
remote: Counting objects: 43215, done.
remote: Compressing objects: 100% (41422/41422), done.
remote: Total 43215 (delta 3079), reused 22032 (delta 1247)
Receiving objects: 100% (43215/43215), 119.06 MiB | 1.60 MiB/s, done.
Resolving deltas: 100% (3079/3079), done.
Checking out files: 100% (40905/40905), done.
fatal: destination path 'git' already exists and is not an empty directory.
Server supports multi_ack_detailed
Server supports side-band-64k
Server supports ofs-delta
want 2d242fb3fc19fc9ba046accdd9210be8b9913f64 (HEAD)
have ef6c5be658f6a70c1256fbd18e18ee0dc24c3386
have db9d8c60266a5010e905829e10cd722519e14777
done
fatal: The remote end hung up unexpectedly