我一直在努力推动我的Bitbucket回购，这似乎与文件大小有关。我尝试用foo.txt（我在OSX上）重复覆盖虚拟文件gtruncate -s <file_size> foo.txt，文件大小越来越大，提交和推送。似乎如果写的git对象的总大小是> 20Kb，推动失败。样本输出：
Writing objects: 100% (3/3), 10.23 KiB | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To git@bitbucket.org:wkc1986/myrepo.git
1678ffd..e821280 master -> master
Writing objects: 100% (3/3), 15.20 KiB | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To git@bitbucket.org:wkc1986/myrepo.git
b59c4dd..4da53c7 master -> master
Writing objects: 100% (3/3), 18.19 KiB | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To git@bitbucket.org:wkc1986/myrepo.git
925ff96..7aa9383 master -> master
Writing objects: 100% (3/3), 19.18 KiB | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To git@bitbucket.org:wkc1986/myrepo.git
63c6d43..fac8697 master -> master
Writing objects: 100% (3/3), 20.17 KiB | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
Write failed: Broken pipe
fatal: The remote end hung up unexpectedly
fatal: The remote end hung up unexpectedly
这确实有问题，因为我无法从当前文件大小预测git对象的大小。我尝试过编辑~/.ssh/config，但似乎没有帮助：
Host *
TCPKeepAlive yes
ServerAliveInterval 5
ServerAliveCountMax 5