[OpenAFS] Strange access problems on one client

[Frank Burkhardt]

Hi,

I'm having a similiar problem.

On Sun, Sep 23, 2007 at 09:54:31AM +0200, Dirk Heinrichs wrote:
> Hello,
> 
> since I got a mail from another person who had this same problem, I would like 
> to follow up on this. Here's what I wrote back in august:

[snip]

> > heini@gondolin ~ % LANG="" ll /afs/altum.de
> > ls: cannot access /afs/altum.de/music: No such file or directory
> > ls: cannot access /afs/altum.de/cells: No such file or directory
> > total 4.0K
> > d????????? ? ?     ?        ?            ? cells/
> > drwx------ 2 heini users 2.0K Jun 29 20:10 data/
> > drwx------ 2 root  root  2.0K Sep  1  2006 home/
> > d????????? ? ?     ?        ?            ? music/

Same here: some directories _and files_ are un-stat()-able although they're
listed by readdir() - i can't see a pattern. It's not a permission problem:
the problem includes files and directories with system:anyuser=rl .

I had a similiar problem some years ago when I used XFS as cache-partition
but this time it's ext2 - I swear.

This is what I use:
   * Debian Unstable (Sid)
   * in a Xen domain (domU)
   * Openafs 1.4.4 (exact debian version is 1.4.4.dfsg1-7) (*1)
   * Vanilla kernel 2.6.22.7 + Xen Patch (*2)
   * afsd options automatically chosen

(*1) The debian-openafs-package afaik contains several patches but it
     runs fine on a non-xenified (vanilla) kernel 2.6.22.2.
(*2) The xen patch was "stolen" from ubuntu gutsy's linux-kernel-2.6.22 package.
     It's available at ftp://fbo.no-ip.org/t/xen-2.6.22.diff.gz .

I had the same problem with kernel 2.6.18 which was downloaded and patched
automatically during the xen-3.1 build process.

First I though of xen as the guilty piece of software, until I read Dirk's
post.

Does anyone have a clue, what this might be? How can help debugging this?

Regards,

Frank

-- 
Frank Burkhardt <burk@cbs.mpg.de>   phone: +49 341 9940-142
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