Messages in this thread | | | Date | Thu, 24 Jul 2014 09:51:57 +0200 | From | Peter Zijlstra <> | Subject | Re: Random panic in load_balance() with 3.16-rc |
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On Thu, Jul 24, 2014 at 04:18:48PM +0900, Michel Dänzer wrote: > On 23.07.2014 18:31, Michel Dänzer wrote: > > 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, > > Just happened again, with your robustness patch and setting > sg->sgc->capacity = 0.
Yeah, that pretty much confirms its not that patch :/
> > but if I manage to do that, I guess there's no alternative to bisecting... > > I hope the assembly output I sent earlier helps, I'm afraid bisecting > this could be painful.
Yeah, lemme go have a look... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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