Date: Sun, 13 Apr 2003 17:30:05 -0700 (PDT) From: Shao Zhang <shao@cia.com.au> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/50807: NFS file locking as client deos not working Message-ID: <200304140030.h3E0U5cS093716@freefall.freebsd.org>
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The following reply was made to PR kern/50807; it has been noted by GNATS.
From: Shao Zhang <shao@cia.com.au>
To: Bruce Evans <bde@zeta.org.au>
Cc: FreeBSD-gnats-submit@freebsd.org, <freebsd-bugs@freebsd.org>
Subject: Re: kern/50807: NFS file locking as client deos not working
Date: Mon, 14 Apr 2003 10:27:11 +1000
On [Fri, 11 Apr 2003 21:25:15 +1000 (EST)], Bruce Evans <bde@zeta.org.au> wrote:
> On Fri, 11 Apr 2003, Shao Zhang wrote:
>
>> >Description:
>> When running the system as an NFS client, file locking does not work at
>> all. The call to fcntl(id, F_SETLK, ...) returns errno 45. The nfs server used
>> is a Redhat Linux 7, with kernel 2.4.2. I have verified that it works fine in
>> both 4.5-RELEASE and 4.6-RELEASE. I have the following entries in my rc.conf:
>>
>> nfs_client_enable="YES" # This host is an NFS client (or NO).
>> nfs_access_cache="4" # Client cache timeout in seconds
>> nfs_server_enable="NO" # This host is an NFS server (or NO).
>> nfs_server_flags="-u -t -n 4" # Flags to nfsd (if enabled).
>> nfs_privport="YES" # Provide NFS only on secure port (or NO).
>> nfs_bufpackets="DEFAULT" # bufspace (in packets) for client (or DEFAULT)
>
> At least for a -current server and client, one or both rpc.lockd and
> rpc.statd enabled here on one or both of the client and server. IIRC,
> enabling both on both works but may be more than necessary. rc.conf.5
> is very unclear on the exact servers required. mount_nfs.8 gives more
> details in connection with how to not use these servers (-L/nolockd flag)
> but is also unclear.
>
> RELENG_4 fakes nfs locking so that lock requests succeed but don't actually
> work. "mount -t nfs -onolockd ..." gives the same fake locking as in
> RELENG_4.
My understanding is that you only need to enable lockd and statd for the
server. According to man rc.conf:
rpc_lockd_enable
(bool) If set to ``YES'' and also an NFS server, run
rpc.lockd(8) at boot time.
rpc_statd_enable
(bool) If set to ``YES'' and also an NFS server, run
rpc.statd(8) at boot time.
The NFS server I am using here is a linux box with 2.4.2 which has a
kernel mode lockd and rpc.statd is running as well. I have tried to
enable both options on my freebsd box as a client, and now the
bogofilter program actually hangs there.
Regards,
Shao.
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