[OpenAFS] Misconfigured Windows client hangs Linux server

[Jeffrey Altman]

This is a cryptographically signed message in MIME format.

--------------ms070101050409050203040907
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Rainer Toebbicke wrote:

> Jeffrey Altman wrote:
>
>> What version of the Windows client?
>>
> 
> rxdebug: AFS version: OpenAFS1.3.7300
> 
> cmdebug: error checking locks: RPC interface mismatch (-455)
> cmdebug: failed to get cache entry 0 (RPC interface mismatch (-455))

Please upgrade the client.  There are race conditions between the
client and the server with versions below 1.3.8x.

>> Is the client reachable from the server?
>>
>> WhoAreYou is not implemented in clients earlier than 1.3.8000.
>> If the client is 1.3.8000 or higher, what do rxdebug and cmdebug
>> report for the client?
>>
> 
> If it's not implemented the server should get RXGEN_OPCODE and go do
> something else, which, as far as I can judge from the dump, is not what
> happened.
> 
> The point about hardening the file server is that the overall quality of
> the AFS service must not rely on every [Windows or not] user upgrading
> whenever there is a new version.

I certainly do not disagree with you.   There have been numerous fixes
applied to the rx library in general and to the file server specificly
in the 1.3.xx releases to address stability and interactions with the
client that can result in undesirable behaviors.

Where there is a problem discovered we have fixed it.   One of the side
effects of the stress testing on the 1.3.8x Windows clients is that we
have also pounded on the servers.   Things are much better with the
current servers than they were previously.

That being said, if the 1.4 release is going to be stable.  We need
people to test and use the 1.3 branch releases so that whatever bugs
are there can be discovered and fixed.   If no one actually runs the
code until after it is released, 1.4 will not be stable.   There are
only so many environments we can test in simulation.

Jeffrey Altman



--------------ms070101050409050203040907
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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--------------ms070101050409050203040907--