Date: Thu, 7 Jan 2016 16:14:55 +0100 From: FreeBSD <FreeBSD@chroot.pl> To: questions@freebsd.org Subject: samba and file locks Message-ID: <568E80EF.4090001@chroot.pl>
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Hello,
I have a problem with file locks on share. My server is running
FreeBSD 10.2 (amd64), samba 4.3.3 (ROLE_ACTIVE_DIRECTORY_DC) and ZFS
pool (raidz) as a windows share.
There is a strange behavior when I open a file from one windows
workstation (smbstatus shows DENY_WRITE and everything seems right) and
after about 5 minutes later I open the same file, which is still edited
on first computer, from other windows workstation. At this moment I
should see a warning message which inform that the file is going to be
opened in read-only mode but nothing happen. The file is opened normally
in read-write mode, so I can write into this file from both workstations
at the same time overwriting data! It looks like the file lock doesn't
work any more.
log.smbd shows:
../source3/smbd/close.c:268(close_remove_share_mode)
close_remove_share_mode: Could not get share mode lock for file
data/filename
I noticed the same situation with share based on UFS.
Below is my smb4.conf.
[global]
dos charset = CP852
unix charset = ISO8859-2
workgroup = WORKGROUP
realm = somedomain.int
server role = active directory domain controller
passdb backend = samba_dsdb
min receivefile size = 16384
kernel change notify = No
dns forwarder = 192.168.1.1
nsupdate command = /usr/local/bin/samba-nsupdate -g
rpc_server:tcpip = no
rpc_daemon:spoolssd = embedded
rpc_server:spoolss = embedded
rpc_server:winreg = embedded
rpc_server:ntsvcs = embedded
rpc_server:eventlog = embedded
rpc_server:srvsvc = embedded
rpc_server:svcctl = embedded
rpc_server:default = external
winbindd:use external pipes = true
idmap config nc:range = 10000-20000
idmap config nc:backend = ad
idmap_ldb:use rfc2307 = yes
idmap config * : backend = tdb
aio read size = 16384
aio write size = 16384
aio write behind = true
write cache size = 262144
map archive = No
map readonly = no
store dos attributes = Yes
vfs objects = dfs_samba4 acl_xattr
[sysvol]
path = /var/db/samba4/sysvol
read only = No
vfs objects = acl_xattr
[SHARE1]
comment = SHARE1
path = /mnt/zfs_share/SHARE1
read only = No
guest ok = Yes
map acl inherit = Yes
oplocks = No
level2 oplocks = No
vfs objects = zfsacl
nfs4:chown = Yes
nfs4:acedup = dontcare
nfs4:mode = simple
Is this a bug in samba? Or I missed something.
Thank you for any suggestions.
Regards
Lukasz
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