autobuild: intermittent test failure detected

[autobuild]

The autobuild test system has detected an intermittent failing test in 
the current master tree.

The autobuild log of the failure is available here:

   http://git.samba.org/autobuild.flakey/2015-02-16-2254/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey/2015-02-16-2254/samba.stderr
   http://git.samba.org/autobuild.flakey/2015-02-16-2254/samba.stdout
  
The top commit at the time of the failure was:

commit 2501afe08b94a514d8e2f3eeb4a2c4edc9764979
Author: Yan, Zheng <zyan at redhat.com>
Date:   Fri Feb 13 18:25:57 2015 +0800

    vfs_ceph: fix disk_free_fn callback
    
    Free space and available space should be in unit of block size. Besides,
    we should call disk_norm() to adjust the returned values.
    
    Signed-off-by: Yan, Zheng <zyan at redhat.com>
    Reviewed-by: Ira Cooper <ira at samba.org>
    Reviewed-by: David Disseldorp <ddiss at samba.org>
    
    Autobuild-User(master): Ira Cooper <ira at samba.org>
    Autobuild-Date(master): Mon Feb 16 18:14:02 CET 2015 on sn-devel-104