[[!comment format=mdwn
 username="joey"
 subject="""comment 2"""
 date="2015-09-09T16:19:06Z"
 content="""
This is a POSIX fcntl lock failing on that filesystem.

git-annex really needs these locks for safe concurrency, including guarding
against situations where data could be lost.

I wonder if flock locks would be more portable?
"""]]