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

Michel Dänzer
2014-07-23T09:31:36Z

On 23.07.2014 18:25, Peter Zijlstra wrote:
> On Wed, Jul 23, 2014 at 10:28:19AM +0200, Peter Zijlstra wrote:
>
>> Of course, the other thing that patch did is clear sgp->power (now
>> sgc->capacity).
>
> Hmm, re-reading the thread there isn't a clear confirmation its this
> patch at all. Could you perhaps bisect this to either verify it is
> indeed that patch we're talking about:
>
> caffcdd8d27b ("sched: Do not zero sg->cpumask and sg->sgp->power in build_sched_groups()")
>
> or find which patch is causing this.

It can take a long time for the problem to occur, so I need to run at
least for one or two days to be at least somewhat sure a given kernel is
not affected.

I'll try reproducing the problem with your previous suggestions first,
but if I manage to do that, I guess there's no alternative to bisecting...

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