Re: Random panic in load_balance() with 3.16-rc

Michel Dänzer
2014-07-22T06:13:23Z

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On 18.07.2014 18:29, Michel Dänzer wrote:
> On 17.07.2014 16:58, Peter Zijlstra wrote:
>> On Thu, Jul 17, 2014 at 04:31:04PM +0900, Michel Dänzer wrote:
>>>
>>> I've been running into the panic captured in the attached picture (hope
>>> it's legible) randomly while running 3.16-rc4 and -rc5. I haven't
>>> noticed any pattern as to when it happens; at least once it happened
>>> while the box was basically sitting idle.
>>>
>>> dmesg, .config and /proc/cpuinfo attached as well; let me know if you
>>> need anything else.
>>
>> Does lkml.kernel.org/r/20140716145546.GA6922@wolff.to cure things?
>
> Yes, adding back
>
> cpumask_clear(sched_group_cpus(sg));
>
> seems to do the trick, thanks.

I'm afraid it happened again with 3.16-rc5 plus the above change. It
seemed to last longer than before, but maybe that was just luck.

Going to try 3.16-rc6 now.

--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer

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