Created attachment 13153 [details]
samba logs at level 10

While trying to restore previous versions via Windows from shares with GlusterFS backend, already available matching snapshots are not getting listed in 'Previous versions' tab. Following is the GlusterFS share section from smb.conf:

vfs objects = shadow_copy2 glusterfs
glusterfs:volume = fashion
glusterfs:logfile = /var/log/samba/glusterfs-fashion.%M.log
glusterfs:loglevel = 9
shadow:snapdir = /.snaps
shadow:basedir = /
shadow:sort = desc
shadow:sscanf = no
shadow:snapprefix = ^s[a-z0-9]*
shadow:format = _GMT-%Y.%m.%d-%H.%M.%S
path = /
read only = no
guest ok = yes

Following log entry confirms that matching GlusterFS snapshots are found with the above shadow_copy2 configuration:

[2017/04/11 05:35:21.055621, 10, pid=15814, effective(0, 0), real(0, 0)] ../source3/modules/vfs_shadow_copy2.c:1908(shadow_copy2_snapshot_to_gmt)
  shadow_copy2_snapshot_to_gmt: match _GMT-%Y.%m.%d-%H.%M.%S: snap2_GMT-2017.04.10-07.40.00

See attachment for details on following suspected error entries in logs during an attempt to restore previous versions of a directory named '2' present directly under root of the share by right-clicking on the folder-> "Restore Previous versions":

[2017/04/11 05:35:21.061838, 10, pid=15814, effective(0, 0), real(0, 0)] ../source3/modules/vfs_shadow_copy2.c:730(shadow_copy2_strip_snapshot_internal)
  ../source3/modules/vfs_shadow_copy2.c:730: path '/2' doesn't start with cwd '/

. . .

[2017/04/11 05:35:21.126502,  5, pid=15814, effective(0, 0), real(0, 0)] ../source3/smbd/filename.c:913(unix_convert)
  Intermediate not found @GMT-2017.04.10-07.40.00

. . .

[2017/04/11 05:35:21.126626, 10, pid=15814, effective(0, 0), real(0, 0)] ../source3/smbd/filename.c:1596(filename_convert_internal)
  filename_convert_internal: unix_convert failed for name 2/@GMT-2017.04.10-07.40.00 with NT_STATUS_OBJECT_PATH_NOT_FOUND
[2017/04/11 05:35:21.126669,  3, pid=15814, effective(0, 0), real(0, 0)] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
  smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1] status[NT_STATUS_OBJECT_PATH_NOT_FOUND] || at ../source3/smbd/smb2_create.c:293
[2017/04/11 05:35:21.126697, 10, pid=15814, effective(0, 0), real(0, 0)] ../source3/smbd/smb2_server.c:2988(smbd_smb2_request_done_ex)
  smbd_smb2_request_done_ex: idx[1] status[NT_STATUS_OBJECT_PATH_NOT_FOUND] body[8] dyn[yes:1] at ../source3/smbd/smb2_server.c:3145