From: Kasparek Tomas <kasparek@fit.vutbr.cz>
Subject: Re: NFS corruption in 2.6.18.2?
Date: Thu, 23 Nov 2006 17:17:38 +0100
Message-ID: <20061123161738.GF40079@fit.vutbr.cz>
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> >have seen this behaviour with kernel 2.6.18 and above up to 19-rc4.
> > Reported this, but no response.
> > 
> > http://lkml.org/lkml/2006/9/28/89
>
> Your test script doesn't use any form of locking. How are you ensuring
> that only one client has the file open at a time?

I use no locking at all, it's just synthetic test, I don't expect data to
be ordered or whatever, but the problem is blocks of zeros inserted.
It behaves right with the last 2.6.16.32, zeros are contained if clients
are 2.6.18.3 and 2.6.19-rc4. 

I'm going to do more testing in next few days, so hoe bring some new info.

As I wrote before, it does not depend on the server (tried with FreeBSD
server and several versions of linux 2.6.16.x and 2.6.18.x).
 
Regards
 
--   

  Tomas Kasparek, PhD student  E-mail: kasparek@fit.vutbr.cz
  CVT FIT VUT Brno, BI/140a    Web:    http://www.fit.vutbr.cz/~kasparek
  Bozetechova 2, 612 66        Fax:    +420 54114-1270
  Brno, Czech Republic         Phone:  +420 54114-1220

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