Date: Sat, 9 Jan 2016 23:47:08 +0100 From: Lukasz <lukasz@chroot.pl> To: questions@freebsd.org Subject: Re: samba and file locks - solved Message-ID: <56918DEC.7070503@chroot.pl> In-Reply-To: <568E80EF.4090001@chroot.pl> References: <568E80EF.4090001@chroot.pl>
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Hello again, Sysctl security.bsd.see_other_gids variable caused problems with file locks. If it's set to 0 the problem appears. If it is set to 1 (default) everything works as expected. Regards Lukasz On 01/07/2016 04:14 PM, FreeBSD wrote: > 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 > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >
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