[OpenAFS] Strange access problems on one client

[Russ Allbery]

Dirk Heinrichs <dirk.heinrichs@online.de> writes:

> 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:

[...]

> The problem seems to be independent of the server(s) or cell, because it
> also happens when I try to access public cells on the internet, running
> completely unauthenticated, like:

> heini@gondolin ~ % LANG="" ll /afs/grand.central.org/
> ls: cannot access /afs/grand.central.org/local: No such file or directory
> ls: cannot access /afs/grand.central.org/software: No such file or directory
> total 14K
> drwxrwxrwx 3 root root 2.0K Jun 17  2004 archive/
> drwxrwxrwx 2 root root 2.0K May  7  2006 cvs/
> drwxrwxrwx 3 root root 2.0K Mar 21  2003 doc/
> ?????????? ? ?    ?       ?            ? local
> drwxrwxrwx 2 root root 2.0K Jun 17  2005 project/
> drwxrwxrwx 5 root root 2.0K Jan 30  2007 service/
> ?????????? ? ?    ?       ?            ? software
> drwxrwxrwx 2 root root 2.0K Aug 25 00:15 user/
> drwxrwxrwx 5 root root 2.0K Aug 24 20:10 www/

[...]

> Kernel: Vanilla 2.6.22.7
> OpenAFS: Gentoo Package openafs-kernel-1.4.4_p20070724-r2

It looks like this is Linux kernel breakage.  According to a Debian bug
reporter with the same problem, it appears to reliably trigger on x86 with
2.6.22.6, and reliably not trigger with 2.6.22.5.  He's seeing the problem
on x86_64 on both 2.6.22.5 and 2.6.22.7, but this wouldn't be the first
time that something changed on x86_64 first.

I haven't had a chance to double-check that I'm *not* seeing this on my
x86_64 system with an older kernel, but I know I wasn't earlier.

I have no idea what might have broken.

-- 
Russ Allbery (rra@stanford.edu)             <http://www.eyrie.org/~eagle/>