Git hangs while writing objects

Solution 1:

I followed VonC's advice:

git config --global http.postBuffer 524288000

For future references, based on comments:

500 MB: 524288000 (as posted in the original answer)
1 GB: 1048576000
2 GB: 2097152000 (anything higher is rejected as 'out of range')

Solution 2:

This was happening because of huge, unignored file in the repo directory. Whoops.

EDIT

The hang was because the file was taking a long time to upload. The file wasn't supposed to have been included in the push.

EDIT

While it's true that a huge file could be the reason behind this issue, if you can't ignore the file in question or just have to push it then follow this answer.

Solution 3:

I had the same problem with (writing objects %16) stuck then fatal. I solved this by saving the current changes and clone a new repository, then copy the modified files into it.

Eg. Assume current repository is A, then all you need to do is:

1. mv A B
2. git clone A
3. mv B/* A/
4. rm -rf B

Then commit and push and it all worked fine. It recognized the moved files as modified :)