[Samba] problem with files locks

samba samba at chroot.pl
Wed Jan 6 17:34:45 UTC 2016

Sorry for my previous email it was something wrong with my email client.
Now is the corrected version:


	I have a problem with files locks on share. My server is running
FreeBSD 10.2 (amd64) with ZFS pool (raidz) for windows share and samba
The server has approximately 100 users accounts and computers accounts.

>From one windows workstation I open a file e. g. text file (file.txt)
the smbstatus shows DENY_WRITE and everything seems right. But when I
open the same file from other windows workstation after about 5 minutes
or later it opens normally without warning message, so I can write to
this file. It looks like the file lock doesn't work any more because it
should be opened in read-only mode.

log.smbd shows:
close_remove_share_mode: Could not get share mode lock for file

I noticed the same situation with share based on UFS.

Here is my smb4.conf:

        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 =
        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

        path = /var/db/samba4/sysvol
        read only = No
        vfs objects = acl_xattr

        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

Thank you for any ideas.



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