From: Neil Brown <neilb@suse.de>
To: Wouter Batelaan <wouter.batelaan@nxp.com>
Cc: "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Subject: Re: mismatch between 2.6.19 and nfs-utils-1.0.10 nfsctl_arg structure???
Date: Wed, 21 Feb 2007 11:04:40 +1100 [thread overview]
Message-ID: <17883.35992.171351.381438@notabene.brown> (raw)
In-Reply-To: message from Wouter Batelaan on Tuesday February 20
On Tuesday February 20, wouter.batelaan@nxp.com wrote:
> Hi,
>
> I'm trying to get an nfs server setup on our embedded 2.6.19 kernel
> system. I've chosen to use the kernel nfsd module,
> and am using the latest nfs-utils.
> It all starts running, but I get this:
> mount -t nfs 127.0.0.1:/etc /tmp/try
> mount: 127.0.0.1:/etc failed, reason given by server: Permission denied
> mount: nfsmount failed: Bad file descriptor
> mount: Mounting 127.0.0.1:/etc on /tmp/try failed: Bad file descriptor
>
> Having added a bit of debugging /var/log/messages shows this:
> daemon.warn mountd[545]: getfh.c:73: getfh_size (/etc)
> daemon.warn mountd[545]: nfsctl.c:26: syscall nfsctl
> daemon.warn mountd[545]: nfsctl.c:28: syscall nfsctl => -1
> daemon.warn mountd[545]: getfh failed: Operation not permitted
You will need patch f988443a84528bd30c2f474efa5e2c511959f19b [1]
or run
mount -t nfsd nfsd /proc/fs/nfs/nfsd
before starting mountd.
>
> Looking in detail at the syscall made, I see that the structure
> definition for nfsctl_arg is different between kernel and nfs-utils.
>
> Huh? What am I missing here? Any pointers appreciated.
> Wouter.
The differences are not significant.
NeilBrown
[1] http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f988443a84528bd30c2f474efa5e2c511959f19b
>
> Kernel 2.6.19.1: include/linux/nfsd/syscall.h:
> struct nfsctl_arg {
> int ca_version; /* safeguard */
> union {
> struct nfsctl_svc u_svc;
> struct nfsctl_client u_client;
> struct nfsctl_export u_export;
> struct nfsctl_fdparm u_getfd;
> struct nfsctl_fsparm u_getfs;
> <snip>
> void *u_ptr;
> } u;
>
>
> nfs-utils 1.0.10: support/include/nfs/nfs.h:
> struct nfsctl_arg {
> int ca_version; /* safeguard */
> union {
> struct nfsctl_svc u_svc;
> struct nfsctl_client u_client;
> struct nfsctl_export u_export;
> struct nfsctl_uidmap u_umap;
> struct nfsctl_fhparm u_getfh;
> struct nfsctl_fdparm u_getfd;
> struct nfsctl_fsparm u_getfs;
> } u;
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2007-02-21 0:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-20 18:05 mismatch between 2.6.19 and nfs-utils-1.0.10 nfsctl_arg structure??? Wouter Batelaan
2007-02-21 0:04 ` Neil Brown [this message]
2007-02-21 15:46 ` Wouter Batelaan
2007-02-21 20:03 ` Neil Brown
2007-02-23 15:25 ` Wouter Batelaan
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