Date: Tue, 30 Aug 2011 11:10:14 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: George Liaskos <geo.liaskos@gmail.com> Cc: freebsd-fs@freebsd.org, Pawel Jakub Dawidek <pjd@freebsd.org> Subject: Re: NFSv4: After upgrade to 9 users can no longer list files. (sounds like a ZFS issue?) Message-ID: <1005169645.540203.1314717014356.JavaMail.root@erie.cs.uoguelph.ca> In-Reply-To: <CANcjpOAsOWRRL0BVk_dX22gOQ72KvrJL6hRRJMvMshATHq8-Tw@mail.gmail.com>
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George Liaskos wrote:
> > Well, if non-root users can't "ls" locally on the server, this
> > sounds more
> > like a ZFS issue than an NFS one. (I don't see this w.r.t. NFS when
> > exporting
> > a UFS volume.)
> >
> > I don't know anything about ZFS. I've added a couple of the ZFS guys
> > to the
> > cc list, in case they don't read posts with NFS in the subject line.
> >
> > rick
>
> Just to be clear, non root users can't ls mounted exports on the
> server.
> Using ls directly on the ZFS file system works.
>
> I exported a UFS directory, everything works... So this is either a
> ZFS or
> an ACL related issue. I will setup a clean VM to see if i can
> reproduce this.
>
You could try this patch and see what effect it has (applied to the
server). It just disables the access check for readdir.
--- nfs_nfsdport.c.sav2 2011-08-30 10:35:58.000000000 -0400
+++ nfs_nfsdport.c 2011-08-30 10:36:54.000000000 -0400
@@ -1838,10 +1838,12 @@ nfsrvd_readdirplus(struct nfsrv_descript
nd->nd_repstat = NFSERR_NOTDIR;
if (!nd->nd_repstat && cnt == 0)
nd->nd_repstat = NFSERR_TOOSMALL;
+#ifdef notnow
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
nd->nd_cred, exp, p, NFSACCCHK_NOOVERRIDE,
NFSACCCHK_VPISLOCKED, NULL);
+#endif
if (nd->nd_repstat) {
vput(vp);
if (nd->nd_flag & ND_NFSV3)
This wouldn't be suitable for a production system, but whether or
not it "fixes" the problem would give us an indication of where the
problem is.
Also, if you could clarify when your 8/stable was downloaded, whether
your 9.0 upgrade was to vanilla Beta1 or ??? and details w.r.t. your
ZFS setup, that might help.
And one more... If you could create a fresh ZFS pool/volume and export
that to see if it exhibits the same problem, that information could
help figure it out, too.
Please let us know how it goes, rick
> Thank you for your response.
>
> Regards,
> George
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