### Please describe the problem.
git-annex will randomly crash.

### What steps will reproduce the problem?
Unknown. Keeping git-annex running for an extended period, failing to sync properly on XMPP(not sure if that is relevant, but given this haven't been found before it might be)

### What version of git-annex are you using? On what operating system?
git-annex version: 4.20130521-g20710d4 (And multiple prior versions)

### Please provide any additional information below.

.git/annex/daemon.log upload: http://paste.ubuntu.com/5694813/

I could find no debug.log?
