[OpenAFS] Callback/Cache Issues with 1.3.82 on FC3

[Stephan Wiesand]

Caches are ext3, 1GB in size, on a dedicated logical volume. Architecture 
is i686. Afsd options are

   -fakestat -stat 300 -dcache 100 -daemons 2 -volumes 50 -afsdb -dynroot

SELinux is enabled with the default settings (targeted policy, enforcing).

There are no port filters between the client and the servers, no NAT. Our 
network is reliable. We haven't had trouble with cache consistency for a long 
time (probably since the 1.0 days).

I can reliably reproduce the failure. The patch from Jason McCormick's
last posting makes it vanish.

I can't think of anything else that matters right now. What else do you 
need?

On Tue, 3 May 2005, chas williams - CONTRACTOR wrote:

> i cant seem to duplicate this failure.  deleting on the 1.2 client
> makes the file disappear on the 1.3 client as well.  do you have
> a little more info?  cache types for the clients?
>
> In message <Pine.LNX.4.61.0505030851270.23744@arwen.ifh.de>,Stephan Wiesand wri
> tes:
>> I'm seeing this as well on an RHEL4 respin, kernel 2.6.9-5.0.5.EL:
>>
>> 1.3.82-client ~ % echo a > a
>> 1.3.82-client ~ % cat a
>> a
>> 1.2.13-client ~ % cat a
>> a
>> 1.2.13-client ~ % rm a
>> 1.2.13-client ~ % cat a
>> cat: a: No such file or directory
>> 1.3.82-client ~ % cat a
>> a
>> 1.3.82-client ~ % vi a
>> [shows old content, but save fails with "cannot open file for writing"]
>> [quit without saving]
>> 1.3.82-client ~ % cat a
>> a
>> 1.2.13-client ~ % cat a
>> cat: a: No such file or directory
>> 1.3.82-client ~ % echo b >|a
>> 1.3.82-client ~ % cat a
>> b
>> 1.2.13-client ~ % cat a
>> b
>>
>> Fileserver is 1.2.13/Linux/x86, DB servers are 1.2.13/Solaris.
>>
>> 1.3.82 does fix the problem that the first write on an x86 non-SMP client
>> hangs I've been observing with 1.3.79-81, though.
>>
>> --
>>
>>  ----------------------------------------------------
>> | Stephan Wiesand  |                                |
>> |                  |                                |
>> | DESY     - DV -  | phone  +49 33762 7 7370        |
>> | Platanenallee 6  | fax    +49 33762 7 7216        |
>> | 15738 Zeuthen    |                                |
>> | Germany          |                                |
>>  ----------------------------------------------------
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-- 

  ----------------------------------------------------
| Stephan Wiesand  |                                |
|                  |                                |
| DESY     - DV -  | phone  +49 33762 7 7370        |
| Platanenallee 6  | fax    +49 33762 7 7216        |
| 15738 Zeuthen    |                                |
| Germany          |                                |
  ----------------------------------------------------