Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

[Arjan van de Ven]

On Sat, 8 Dec 2007 15:46:54 -0500
"Parag Warudkar" <parag.warudkar@xxxxxxxxx> wrote:

> On Dec 8, 2007 3:11 PM, Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> > * Parag Warudkar <parag.warudkar@xxxxxxxxx> wrote:
> >
> > > But there are still fluctuations under 100% idle -
> >
> > do you have CONFIG_HIGH_RES_TIMERS=y?
> 
> Yes - NO_HZ=y  and HIGH_RES_TIMERS=y.
> My ssh connection still died with hpet=disable although this time I
> did not see soft lockup message.
> Also it randomly gets stuck - suddenly there is a freeze and I can't
> type for seconds.
> 
> > these fluctuations would still be OK if they are due to HZ
> > granularity.
> >
> 
> So are the hpet ones ok too or do they seem off even with HRTIMERS=y?
> Just trying to figure out if I should be testing further with hpet
> disabled or enabling it is ok.
> 

what chipset is this?
(I wonder if there's one where we shouldn't be force-enabling the hpet)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/