On Tue, Jul 13, 2004 at 11:16:23AM +0200, Heinrich Rebehn wrote:
> Hi list,
>
> I have a strange permission problem with secrets.tdb on an nfs mounted
> filesystem.
> A strace of smbd shows the following lines:
>
> ########################################################################
> open("/etc/samba/private/secrets.tdb", O_RDWR|O_CREAT|O_LARGEFILE, 0600)
> = 4
>
> fcntl64(4, F_SETLKW64, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1},
> 0xbffff010) = -1 EACCES (Permission denied)
>
> ########################################################################
>
> /etc/samba/private/secrets.tdb is a link to
> /var/etc/samba/private/secrets.tdb which in turn is a link to
> /cluster/bremerhaven/secrets.tdb, which is on an nfs mounted filesystem.
>
> This setup is because the root fs is readonly and /var is volatile (tmpfs).
>
> root has full access on /cluster and it also does not help if i set
> secrets.tdb's permissions to 0666.
>
> Are there known issues with the fcntl64 call? Would upgrading to kernel
> 2.6.x help?
Try not to put tdb files on an nfs mount. Some servers (Solaris as I
remember) have issues with doing fcntl locks on an mmapped file. By
issues I mean "it doesn't work" :-).
Jeremy.
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