3.6: net circualr lockind dependence [was: 3.5 stable somewhere ?]

3.6: net circualr lockind dependence [was: 3.5 stable somewhere ?]

[Jiri Slaby]

Adding netdev. (Cristian is seeing a circular locking dependence in 3.6.)

On 10/05/2012 02:48 AM, Cristian Rodríguez wrote:
> El jue 04 oct 2012 21:01:45 CLST, Cristian Rodríguez escribió:
>> El 04/10/12 17:02, Jiri Slaby escribió:
>>> On 10/04/2012 09:12 PM, Cristian Rodríguez wrote:
>>>> BTW.. here is the crash.. is just a matter of generating a little
>>>> load on apache2-event and something goes crazy.
>>>
>>> Is there a fix known? The traces below look pretty hopeless. Are they
>>> the first info printed? What's before them?
>>>
>>
>> Do You have any hints how to proceed here ? I have both compiled custom
>> kernels and used SUSE packages plus
>>
>> kernel.softlockup_panic = 1
>> kernel.unknown_nmi_panic = 1
>> kernel.panic_on_unrecovered_nmi = 1
>> vm.panic_on_oom = 1
>>
>>
>> and kdump in order to get a workable backtrace, with no avail, machine
>> hangs and the kernel dump is never written.
> 
> 
> With a debug kernel I get this at shutdown, but I am not sure it is 
> related at all.

Uploaded here:
http://www.fi.muni.cz/~xslaby/sklad/panics/lockdep1.png

-- 
js
suse labs