autobuild[sn-devel-144]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-144) 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.sn-devel-144/2017-02-01-1922/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-02-01-1922/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-02-01-1922/samba.stdout
  
The top commit at the time of the failure was:

commit 2bea45e450e5ebd6544c2a8be4493242158b712e
Author: Amitay Isaacs <amitay at gmail.com>
Date:   Wed Feb 1 15:52:48 2017 +1100

    ctdb-common: ioctl(.. FIONREAD ..) returns an int value
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=12549
    
    Signed-off-by: Amitay Isaacs <amitay at gmail.com>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    
    Autobuild-User(master): Volker Lendecke <vl at samba.org>
    Autobuild-Date(master): Wed Feb  1 14:29:14 CET 2017 on sn-devel-144