Re: (was: nfs-utils-1.1.3 released)

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Chuck Lever <chuck.lever@xxxxxxxxxx> writes:

> On Aug 4, 2008, at 4:55 PM, Paul Collins wrote:
>> Chuck Lever <chuck.lever@xxxxxxxxxx> writes:
>>> On Aug 3, 2008, at 11:10 AM, J. Bruce Fields wrote:
>>>> On Mon, Aug 04, 2008 at 12:37:19AM +1200, Paul Collins wrote:
>>>>> "J. Bruce Fields" <bfields@xxxxxxxxxxxx> writes:
>>>>>
>>>>>> On Fri, Aug 01, 2008 at 11:15:33PM +1000, Aníbal Monsalve Salazar
>>>>>> wrote:
>>>>>>> On Mon, Jul 28, 2008 at 03:13:19AM -0400, Steve Dickson wrote:
>>>>>>>> I just cut the 1.1.3 nfs-utils release. Unfortunately I'm having
>>>>>>>> issues accessing my kernel.org account so for the moment the
>>>>>>>> tar ball is only available on SourceForge:
>>>>>>>>
>>>>>>>>   http://sourceforge.net/projects/nfs
>>>>>>>> [...]
>>>>>>>
>>>>>>> 1.1.3 clients don't work with a 1.0.10 server anymore.
>>>>>>
>>>>>> Very weird--it might make sense if upgrading nfs-utils broke the
>>>>>> mount
>>>>>> itself, but here it seems the mount is succeeding and subsequent
>>>>>> file
>>>>>> access (which I'd expect to only involve the in-kernel client
>>>>>> code) is
>>>>>> failing.  Maybe there's some difference in the mount options?
>>>>>> What does
>>>>>> /proc/self/mounts say?  I assume these are all v2 or v3 mounts?
>>>>>
>>>>> I discovered today that I was no longer able to write to the v3
>>>>> mount on
>>>>> my 1.1.2 server.  I checked /proc/mounts and noticed sec=null on
>>>>> the
>>>>> mount.  Either adding sec=sys to the client's mount options or
>>>>> downgrading to nfs-common 1.1.2 on the client fixes the problem.
>>>>
>>>> That would do it!
>>>>
>>>> So it sounds like there's a bug that causes mount.nfs to get the
>>>> default
>>>> mount options wrong?
>>>
>>> I'm not sure I'm following this.  I can't think of a user-space
>>> mount.nfs change in 1.1.3 that would affect the sec= option.
>>>
>>> Paul, which kernel are you running on your clients?
>>
>> Either 2.6.26 or 2.6.27-rc1+.  I'll double-check.
>
> It would be interesting if you could try both.  I suspect 2.6.26
> doesn't exhibit this problem, as 27-rc1 has changes in the NFS mount
> parser that affect "sec=".

I had the problem with 2.6.26. I didn't try 2.6.27-rc1 on that
machine.

> Also, enabling NFS mount debugging messages when performing the mount
> that eventually doesn't work would be enlightening (for me).  Either:

I won't be around that machine for a week or so.

>> Whichever one it was, the problem was present with 1.1.3 installed,
>> and
>> not present with 1.1.2 installed.

Same here.

Regards
/Rasmus

-- 
Rasmus Bøg Hansen
MSC Aps
Bøgesvinget 8
2740 Skovlunde
44 53 93 66

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