[Unionfs] Panic in unionfs 2.2.4

[Dave Miller]

Erez Zadok wrote on 4/2/08 3:34 PM:
> In message <20039261.770751207087995784.JavaMail.root at tahiti.vyatta.com>, Bob Gilligan writes:
>> ----- "Erez Zadok" <ezk at cs.sunysb.edu> wrote:
>>> In message
>>> <20286507.735771206579536200.JavaMail.root at tahiti.vyatta.com>, Bob
>>> Gilligan writes:
>>> [...]
>>>> And I see the panic too in unionfs-2.3.1 running on our 2.6.23
>>> kernel.  It is the same panic signature as before:  BUG at
>>> include/linux/dcache.h:322
>>>> I've filed a bug report on the problem:
>>>>
>>>> https://bugzilla.filesystems.org/show_bug.cgi?id=611
>>>>
>>>> Bob.
>>> Bob, below is a fix to your bug #611.  Please verify it on your
>>> setup.
>>> Thanks for the step-by-step tickle-the-bug script: it was very
>>> helpful.
>>>
>>> Lucas, and others who've seen similar bugs, please let me know if the
>>> small
>>> patch below fixes your oopses or not.
>>>
>>> Thanks,
>>> Erez.
>>>
> 
>> That patch seems to have done the trick!  I tried the sequence of shell
>> commands that previously triggered the problem in our 2.6.23 kernel and
>> got no panic.  I also tried the sequence of commands in the Vyatta config
>> system (which uses unionfs) that tickled the problem, and can't reproduce
>> the panic that way either  Thanks for the fix!
>>
>> Bob.
> 
> Good to know.  I'll close bug 611.

I got this exact same stack trace this morning on our setup using 
unionfs 2.3.2 (which supposedly includes this patch).  Not so sure it's 
fixed.  I commented on the bug.

-- 
Dave Miller                                   http://www.justdave.net/
System Administrator, Mozilla Corporation      http://www.mozilla.com/
Project Leader, Bugzilla Bug Tracking System  http://www.bugzilla.org/