LinuxLists.cc - NFS "Not a directory" problem

2007-01-31 21:53:48

Subject: NFS "Not a directory" problem

Linux client = 2.6.19-1.2895.fc6
NFS server = Tru64 5.1B-2 (aka 5.1 + PK4)

NFS mount is NFSV3 over UDP or TCP. NFSV2 works OK, NFSV3 has the
following problem;

$ cd /mnt/
$ cd fvance
$ cd src
returns "*Not a directory*" error message.
src is simply a directory under "fvance". Normally a umount/mount cycle
will remove the problem and then all is well.

Turning debug on with "*rpcdebug -m nfs -s all*" and I get the following
in messages;

*When it works;*
> Jan 31 15:30:40 rds-icap kernel: NFS:
> nfs_updatepage(HISTFILES/.sh_history-rds-icap.bmc.com 8@1542)
> Jan 31 15:30:40 rds-icap kernel: NFS: nfs_updatepage returns 0
> (isize 1550)
> Jan 31 15:30:40 rds-icap kernel: NFS: permission(0:25/8), mask=0x1, res=0
> Jan 31 15:30:40 rds-icap kernel: NFS: revalidating (0:25/656353)
> Jan 31 15:30:40 rds-icap kernel: NFS call getattr
> Jan 31 15:30:40 rds-icap kernel: NFS reply getattr: 0
> Jan 31 15:30:40 rds-icap kernel: NFS: nfs_update_inode(0:25/656353
> ct=1 info=0x6)
> Jan 31 15:30:40 rds-icap kernel: NFS: (0:25/656353) revalidation complete
> Jan 31 15:30:40 rds-icap kernel: NFS:
> nfs_lookup_revalidate(fvance/src) is valid
> Jan 31 15:30:40 rds-icap kernel: NFS: permission(0:25/656353),
> mask=0x1, res=0
*When it fails;*
> Jan 31 15:25:31 rds-icap kernel: NFS:
> nfs_updatepage(HISTFILES/.sh_history-rds-icap.bmc.com 8@1454)
> Jan 31 15:25:31 rds-icap kernel: NFS: nfs_updatepage returns 0
> (isize 1462)
> Jan 31 15:25:31 rds-icap kernel: NFS call access
> Jan 31 15:25:31 rds-icap kernel: NFS: nfs_update_inode(0:26/8 ct=1
> info=0x6)
> Jan 31 15:25:31 rds-icap kernel: NFS reply access: 0
> Jan 31 15:25:31 rds-icap kernel: NFS: permission(0:26/8), mask=0x1, res=0
> Jan 31 15:25:31 rds-icap kernel: NFS:
> nfs_lookup_revalidate(fvance/src) is valid
> Jan 31 15:25:31 rds-icap kernel: NFS call lookup src
> Jan 31 15:25:31 rds-icap kernel: NFS reply lookup: 0
> Jan 31 15:25:31 rds-icap kernel: --> nfs_xdev_get_sb()
> Jan 31 15:25:31 rds-icap kernel: -->
> nfs_clone_server(,ffffffffcc98e21e:0,)
> Jan 31 15:25:31 rds-icap kernel: --> nfs_probe_fsinfo()
> Jan 31 15:25:31 rds-icap kernel: NFS call fsinfo
> Jan 31 15:25:31 rds-icap kernel: NFS reply fsinfo: 0
> Jan 31 15:25:31 rds-icap kernel: NFS call pathconf
> Jan 31 15:25:31 rds-icap kernel: NFS reply pathconf: 0
> Jan 31 15:25:31 rds-icap kernel: <-- nfs_probe_fsinfo() = 0
> Jan 31 15:25:31 rds-icap kernel: Cloned FSID: ffffffffcc98e21e:0
> Jan 31 15:25:31 rds-icap kernel: <-- nfs_clone_server() = db5db8c0
> Jan 31 15:25:31 rds-icap kernel: --> nfs_free_server()
> Jan 31 15:25:31 rds-icap kernel: --> nfs_put_client({3})
> Jan 31 15:25:31 rds-icap kernel: <-- nfs_free_server()
> Jan 31 15:25:31 rds-icap kernel: do_proc_get_root: call fsinfo
> Jan 31 15:25:31 rds-icap kernel: do_proc_get_root: reply fsinfo: 0
> Jan 31 15:25:31 rds-icap kernel: NFS: nfs_update_inode(0:26/656353
> ct=2 info=0x6)
> Jan 31 15:25:31 rds-icap kernel: NFS: nfs_fhget(0:26/656353 ct=2)
> Jan 31 15:25:31 rds-icap kernel: <-- nfs_xdev_get_sb() = 0
Note,
inode for parent of fvance = 2
inode for fvance is 8
inode for src is 656353

Anyone help me figure out what is going wrong here?
-Dan Goetzman

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2007-02-01 04:32:07

by Trond Myklebust

[permalink] [raw]

Subject: Re: NFS "Not a directory" problem

On Wed, 2007-01-31 at 15:53 -0600, Dan Goetzman wrote:
> Linux client = 2.6.19-1.2895.fc6
> NFS server = Tru64 5.1B-2 (aka 5.1 + PK4)
>
> NFS mount is NFSV3 over UDP or TCP. NFSV2 works OK, NFSV3 has the
> following problem;
>
> $ cd /mnt/
> $ cd fvance
> $ cd src
> returns "*Not a directory*" error message.
> src is simply a directory under "fvance". Normally a umount/mount cycle
> will remove the problem and then all is well.
>
> Turning debug on with "*rpcdebug -m nfs -s all*" and I get the following
> in messages;
>
> *When it works;*
> > Jan 31 15:30:40 rds-icap kernel: NFS:
> > nfs_updatepage(HISTFILES/.sh_history-rds-icap.bmc.com 8@1542)
> > Jan 31 15:30:40 rds-icap kernel: NFS: nfs_updatepage returns 0
> > (isize 1550)
> > Jan 31 15:30:40 rds-icap kernel: NFS: permission(0:25/8), mask=0x1, res=0
> > Jan 31 15:30:40 rds-icap kernel: NFS: revalidating (0:25/656353)
> > Jan 31 15:30:40 rds-icap kernel: NFS call getattr
> > Jan 31 15:30:40 rds-icap kernel: NFS reply getattr: 0
> > Jan 31 15:30:40 rds-icap kernel: NFS: nfs_update_inode(0:25/656353
> > ct=1 info=0x6)
> > Jan 31 15:30:40 rds-icap kernel: NFS: (0:25/656353) revalidation complete
> > Jan 31 15:30:40 rds-icap kernel: NFS:
> > nfs_lookup_revalidate(fvance/src) is valid
> > Jan 31 15:30:40 rds-icap kernel: NFS: permission(0:25/656353),
> > mask=0x1, res=0
> *When it fails;*
> > Jan 31 15:25:31 rds-icap kernel: NFS:
> > nfs_updatepage(HISTFILES/.sh_history-rds-icap.bmc.com 8@1454)
> > Jan 31 15:25:31 rds-icap kernel: NFS: nfs_updatepage returns 0
> > (isize 1462)
> > Jan 31 15:25:31 rds-icap kernel: NFS call access
> > Jan 31 15:25:31 rds-icap kernel: NFS: nfs_update_inode(0:26/8 ct=1
> > info=0x6)
> > Jan 31 15:25:31 rds-icap kernel: NFS reply access: 0
> > Jan 31 15:25:31 rds-icap kernel: NFS: permission(0:26/8), mask=0x1, res=0
> > Jan 31 15:25:31 rds-icap kernel: NFS:
> > nfs_lookup_revalidate(fvance/src) is valid
> > Jan 31 15:25:31 rds-icap kernel: NFS call lookup src
> > Jan 31 15:25:31 rds-icap kernel: NFS reply lookup: 0
> > Jan 31 15:25:31 rds-icap kernel: --> nfs_xdev_get_sb()
> > Jan 31 15:25:31 rds-icap kernel: -->
> > nfs_clone_server(,ffffffffcc98e21e:0,)
> > Jan 31 15:25:31 rds-icap kernel: --> nfs_probe_fsinfo()
> > Jan 31 15:25:31 rds-icap kernel: NFS call fsinfo
> > Jan 31 15:25:31 rds-icap kernel: NFS reply fsinfo: 0
> > Jan 31 15:25:31 rds-icap kernel: NFS call pathconf
> > Jan 31 15:25:31 rds-icap kernel: NFS reply pathconf: 0
> > Jan 31 15:25:31 rds-icap kernel: <-- nfs_probe_fsinfo() = 0
> > Jan 31 15:25:31 rds-icap kernel: Cloned FSID: ffffffffcc98e21e:0
> > Jan 31 15:25:31 rds-icap kernel: <-- nfs_clone_server() = db5db8c0
> > Jan 31 15:25:31 rds-icap kernel: --> nfs_free_server()
> > Jan 31 15:25:31 rds-icap kernel: --> nfs_put_client({3})
> > Jan 31 15:25:31 rds-icap kernel: <-- nfs_free_server()
> > Jan 31 15:25:31 rds-icap kernel: do_proc_get_root: call fsinfo
> > Jan 31 15:25:31 rds-icap kernel: do_proc_get_root: reply fsinfo: 0
> > Jan 31 15:25:31 rds-icap kernel: NFS: nfs_update_inode(0:26/656353
> > ct=2 info=0x6)
> > Jan 31 15:25:31 rds-icap kernel: NFS: nfs_fhget(0:26/656353 ct=2)
> > Jan 31 15:25:31 rds-icap kernel: <-- nfs_xdev_get_sb() = 0
> Note,
> inode for parent of fvance = 2
> inode for fvance is 8
> inode for src is 656353
>
> Anyone help me figure out what is going wrong here?
> -Dan Goetzman

I'd like to see what values the server is returning for the fsid on
GETATTR/LOOKUP calls to the parent of fvance, fvance, and fvance/src in
the case where the 'not a directory' issue turns up.
Can you show us a binary tcpdump (or some equivalent) of such an event?

Cheers,
Trond

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier.
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
NFS maillist - [email protected]
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