[Samba] oplocks issue when trying to copy file

[Joschi Brauchle]

I reported the issue here:
https://bugzilla.samba.org/show_bug.cgi?id=8670

Please find level-10 logs and strace there.

Best regards,
Joschi Brauchle

On 12/19/2011 10:57 AM, Volker Lendecke wrote:
> Hi!
>
> More interesting would be a debug level 10 logfile together
> with a "strace -ttT -o /tmp/smbd.strace -p<smbd-pid>" on
> the smbd relevant for the client.
>
> Volker
>
> On Fri, Dec 16, 2011 at 06:44:10PM +0100, Joschi Brauchle wrote:
>> Hello everyone,
>>
>> I would like to follow up on the thread "[Samba] oplocks issue when
>> trying to copy file", which I found while googling for a problem.
>>
>> We have the same setup and problem mentioned in that thread:
>> Our Samba server (version 3.5.12) exports a share that was mounted
>> via NFS from another machine. We are using SUSE Linux Enterprise and
>> this setup used to work with "kernel oplocks = yes" in SLES10, but
>> not in SLES11SP1.
>>
>> I did some research and found that the kernel commit
>> http://kernel.opensuse.org/cgit/kernel/commit/?h=SLE11-SP1&id=dd143426eaaadea159c8dd2d3c9ff5e9da94bcfd
>> mentioned in this thread is included in SLES11SP1 kernel 2.6.32.29.
>>
>> So I downgraded to SLES11SP1 2.6.32.12 on a test-machine and can
>> confirm that the problem goes away with kernel oplocks turned on!
>>
>> As a workaround, one can disable kernel oplocks or use the "-o
>> nolock" option when mounting via NFS.
>>
>> I guess this kernel regression should be reported to Novell. I can
>> provide the samba-level-10 logfiles for 2.6.32.12 (working) and
>> 2.6.32.29 (not working).
>>
>> Best regards,	
>> --
>> Dipl.-Ing. Joschi Brauchle, M.Sc.
>>
>> Institute for Communications Engineering (LNT)
>> Technische Universitaet Muenchen (TUM)
>> 80290 Munich, Germany
>>
>> Tel (work): +49 89 289-23474
>> Fax (work): +49 89 289-23490
>> E-mail: joschi.brauchle at tum.de
>> Web: http://www.lnt.ei.tum.de/
>>
>
>
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>
>

-- 
Dipl.-Ing. Joschi Brauchle, M.Sc.

Institute for Communications Engineering (LNT)
Technische Universitaet Muenchen (TUM)
80290 Munich, Germany

Tel (work): +49 89 289-23474
Fax (work): +49 89 289-23490
E-mail: joschi.brauchle at tum.de
Web: http://www.lnt.ei.tum.de/