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-144/2017-12-18-0122/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-12-18-0122/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-12-18-0122/samba.stdout
  
The top commit at the time of the failure was:

commit 7fa91fc4791d076c609eaf119753e38dd3c50a1c
Author: Christof Schmitt <cs at samba.org>
Date:   Wed Dec 13 11:34:23 2017 -0700

    smbd: Fix coredump on failing chdir during logoff
    
    server_exit does an internal tree disconnect which requires a chdir to
    the share directory. In case the file system encountered a problem and
    the chdir call returns an error, this triggers a SERVER_EXIT_ABNORMAL
    which in turn results in a panic and a coredump. As the log already
    indicates the problem (chdir returned an error), avoid the
    SERVER_EXIT_ABNORMAL in this case and not trigger a coredump.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13189
    
    Signed-off-by: Christof Schmitt <cs at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Sat Dec 16 01:56:06 CET 2017 on sn-devel-144