Date: Tue, 10 Aug 2010 14:22:47 +0200 From: Attila Nagy <bra@fsn.hu> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: freebsd-fs@freebsd.org Subject: Re: NFS problem: file doesn't appear in file listing, but can be accessed directly Message-ID: <4C614497.4080600@fsn.hu> In-Reply-To: <507225020.401114.1281141334084.JavaMail.root@erie.cs.uoguelph.ca> References: <507225020.401114.1281141334084.JavaMail.root@erie.cs.uoguelph.ca>
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On 08/07/2010 02:35 AM, Rick Macklem wrote:
>> Subject: Re: NFS problem: file doesn't appear in file listing, but can be accessed directly
>> On 03.08.2010, at 16:36, Attila Nagy wrote:
>>
>>>> You can try replacing the client and server with the experimental
>>>> ones and see if that fixes the problem.
>>>> For the client: mount with "-t newnfs" instead of "-t nfs"
>>>> For the server: start both mountd and nfsd with the "-e" option
>>> Sure. It works with the newnfs client, so it must be either a weird
>>> interaction between the FreeBSD server and client (old), or a client
>>> bug.
>> Have you tried comparing on-the-wire NFS requests and responses
>> between newnfs and legacy nfs clients for your test case? Maybe you
>> can rule out the former like this. Or at least prove that the server
>> actually responds correctly to the READDIR request.
>>
> Well, I looked at a packet capture emailed to me by Attila Nagy and
> the filename shows up in the Lookup near the end (the "ls -la"), but
> is not in any of the readdir replies (a search from the start of the
> capture in wireshark only finds it at the Lookup). Therefore, I think
> the problem is w.r.t. the server. (He did this failed case with the
> "newnfs", so both clients see the problem.)
>
> Attila, could you by any chance try switching to the experimental
> server ("-e" on both mountd and nfsd) and see if the problem persists?
Sure. Switched to -e for both mountd and nfsd and I can see the same.
Any ideas about what should I provide to investigate this further?
Thanks,
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