git clone on RPi fails : RPC failed; curl 92 HTTP/2 stream 0 was not closed cleanly

[dario-spagnolo]

When executing git clone https://github.com/SeedSigner/seedsigner from the Raspberry Pi OS Local Dev Build Instructions I encountered this error:

pi@raspberrypi:~ $ git clone https://github.com/SeedSigner/seedsigner
Cloning into 'seedsigner'...
remote: Enumerating objects: 13015, done.
remote: Counting objects: 100% (3587/3587), done.
remote: Compressing objects: 100% (754/754), done.
error: RPC failed; curl 92 HTTP/2 stream 0 was not closed cleanly: CANCEL (err 8)
fatal: the remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

I restarted it twice with the same result.

After some googling I found this :

git config --global http.version HTTP/1.1
git config --global http.postBuffer 157286400

It worked, although I am not sure what was wrong in the first place. Is the Rpi's Raspbian Buster network stack incompatible with HTTP/2?

I'll wait for someone to confirm this issue or shed some light before contributing a PR to update the doc.

System info

Board : Raspberry Pi Zero W v1.1

Connected via SSH over Wifi

cat /etc/os-release

PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"