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

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Message-ID: <4DA49F7F.8060005@suse.cz>
Date:	Tue, 12 Apr 2011 20:52:47 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	Bryan Schumaker <bjschuma@...app.com>
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 08:43 PM, Bryan Schumaker wrote:
> 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).

I don't have NFS in modules. It's all built-in. And this one is
unconditionally selected because of CONFIG_NFS_V4.

regards,
-- 
js
suse labs
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