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SubjectRe: nfs stale filehandle issues with 2.6.10-rc1 in-kernel server
jmerkey@galt.devicelogics.com wrote:

>>Nope. I'm not seeing that at all (besides, that is entirely unrelated to
>>ESTALE errors).
>>
>>Mind telling us how to reproduce the problem?
>>
>>Cheers,
>> Trond
>>
>>--
>>Trond Myklebust <trond.myklebust@fys.uio.no>
>>
>>
>
>Connect 2.4.18 and 2.6.9 with NFS 3 enabled. I am seeing problems
>connecting and file size mismatches. I also see errors with zero
>length files (host side) that get opened and populated with data
>and the remote side is unable to read them -- keeps seeing
>them as zero length.
>
>I can setup this back up tommorrow morning in the lab and provide
>you all sorts of good debug and trace info. The problem seems to
>happen if the local side from the FS has open handles and starts
>writing blocks to a zero length file, and the remote side doesn't
>seem to see the data right away.
>
>On typical FS read behavior, even if the file has a zero length, this
>seems to be ignored and read requests continue until read returns
>0 bytes read for file size. On the remote side, if the file size
>is not reflected, this is not the behavior, and probably should
>be. I can see someone truncating or changing a file size and NFS
>gets into a weird state.
>
>Mismatches between configured v2/v3/v4 NFS configs between kernels
>also have some issues. Please provide me with a sample /etc/exports
>config you wish me to use exporting a directory you think would be
>helpful and I'll test and provide pcap traces of the traffic between
>the nodes.
>
>Jeff
>
>
>
>
>

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