netdev - Re: [PATCH] NFS: Fix infinite loop in gss_create

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Message-ID: <4DA49D3A.7090800@netapp.com>
Date:	Tue, 12 Apr 2011 14:43:06 -0400
From:	Bryan Schumaker <bjschuma@...app.com>
To:	Jiri Slaby <jslaby@...e.cz>
CC:	Trond Myklebust <Trond.Myklebust@...app.com>,
	Jiri Slaby <jirislaby@...il.com>, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, mm-commits@...r.kernel.org,
	ML netdev <netdev@...r.kernel.org>, linux-nfs@...r.kernel.org
Subject: Re: [PATCH] NFS: Fix infinite loop in gss_create_upcall()

On 04/12/2011 02:34 PM, Jiri Slaby wrote:
> On 04/12/2011 08:31 PM, Trond Myklebust wrote:
>>> Yes, it fixes the problem. But it waits 15s before it times out. This is
>>> inacceptable for automounted NFS dirs.
>>
>> I'm still confused as to why you are hitting it at all. In the normal
>> autonegotiation case, the client should be trying to use AUTH_SYS first
>> and then trying rpcsec_gss if and only if that fails.
>>
>> Are you really exporting a filesystem using AUTH_NULL as the only
>> supported flavour?
> 
> I don't know, I connect to a nfs server which is not maintained by me.
> It looks like that. How can I find out?

If you're not using gss for anything, you could try rmmod-ing rpcsec_gss_krb5 (and other rpcsec_gss_* modules).

- Bryan

> 
> thanks,

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