In T9724#146283, @epriestley wrote:

I can't reproduce this. Here's what I did:

• I opened three terminal windows.
• I ran git clone ssh://dweller@secure.phabricator.com/diffusion/P/phabricator.git phabricator-X in each at the same time, where X is one of 1, 2 or 3.

All clones completed successfully, and I got three clones in the working directory after they finished.

I have upgraded git to the latest version.

$ git --version
git version 2.6.3

In T9724#144778, @johnny-bit wrote:

Not that it might help, but:

In T9724#144776, @cole wrote:

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.4 LTS
Release:	12.04
Codename:	precise

That's ancient 14.04 is also LTS...

We have been experiencing the same issue, though we can reliably reproduce on larger repositories with no submodules.