Recently I tried to push a bigger repository to Github. At some stage of the upload process failed:
fatal: The remote end hung up unexpectedly Everything up-to-date
Some research on the internet indicated that the https buffer was not big enough. The simplest fix to that was to increase the buffer size:
git config http.postBuffer 524288000
That worked fairly well, however the upload was more like a black box thing now. The commit was compressed locally and there was no real upload progress information anymore.
One other solution is to switch from https to SSH by the following command:
git remote add origin firstname.lastname@example.org:username/project.git
In order to get SSH working you will have to create SSH Keys first, which is described here.