Re: 4.0 NFS client in infinite loop in state recovery after getting BAD_STATEID

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Hi Ben,

probably you can simulate, as Olga has suggested, with fault injection.
I can I can prepare a snadalone version of your server, which returns
BAD_STATEID on any IO request.

Tigran.

----- Original Message -----
> From: "Benjamin Coddington" <bcodding@xxxxxxxxxx>
> To: "Mkrtchyan, Tigran" <tigran.mkrtchyan@xxxxxxx>
> Cc: "Olga Kornievskaia" <aglo@xxxxxxxxx>, "Trond Myklebust" <trond.myklebust@xxxxxxxxxxxxxxx>, "linux-nfs"
> <linux-nfs@xxxxxxxxxxxxxxx>
> Sent: Friday, May 8, 2015 2:25:19 PM
> Subject: Re: 4.0 NFS client in infinite loop in state recovery after getting BAD_STATEID

> On Fri, 8 May 2015, Mkrtchyan, Tigran wrote:
> 
>> Hi Olga,
>>
>> I believe we see the same infinite loop without delegation with RHEL6/7
>> kernels, but without delegation being involved. Currently, on the server
>> side, if client looping is detected, we return RESOURCE. This breaks the
>> loop and application gets an IO error.
>>
>> Your fix is only covers the delegation case isn't it?
>>
>> Tigran.
> 
> Tigran, do you have a BZ or can you tell me how to reproduce this?
> 
> Ben
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