Trying to clone Diaspora and getting a segmentation fault error. What does that mean?

Sorry for sounding naive. I've never seen this before.

Initialized empty Git repository in /Users/ma开发者_如何学Pythoncuser/Sites/diaspora/.git/

got 3a266732986114800f58783337c85d6202dab81f

walk 3a266732986114800f58783337c85d6202dab81f

Getting alternates list for https://github.com/diaspora/diaspora.git

Also look at https://github.com/network/911765.git/

Getting pack list for https://github.com/diaspora/diaspora.git

Segmentation fault

Why/what is a segmentation fault?

a seg fault occurs when the computer tries to access a piece of memory for which the computer doesn't have access. http://en.wikipedia.org/wiki/Segmentation_fault

Its usually a bug with the software that is directly interfacing with the computer, e.g. a seg fault found in Ruby is usually with respect to the interpreter, not the ruby code itself. If it is occurring frequently, I'd try updating your git install and if you still are getting it, I'd report it to the git core team.