Re: [ANNOUNCE] 3.0.1-rt11

[Nivedita Singhvi]

Mike Galbraith wrote:
> On Sat, 2011-08-13 at 09:27 -0700, Paul E. McKenney wrote:
>
> > Strange.  By the time it got around to printing the stall, no one was
> > stalling:
> >
> > [  100.409012] INFO: rcu_preempt_state detected stalls on CPUs/tasks: {} (detected by 21, t=60002 jiffies)
> >
> > Now it -is- possible for the stall to end just as we get ready to detect
> > it, but that window is really really small.  The most recent occurrence
> > of this sort of thing was due misconfigured timekeeping, but I don't see
> > any sign of that in the trace.
> >
> > This happens repeatedly?
>
> Yeah.  When I put -rt9 on the UV box, it was doing the just idling, and
> boom thing I saw with earlier releases on both my Q6600 and x3550 M3
> boxes.  -rt10 seems to have just changed the timing.
>
> I'll update the x3550 M3, and see if it still gripes.  UV isn't virgin
> source, has to be twiddled a little. (symptom was identical though)

Mike,

Which test were you running? Because I'm not seeing it
on our x3550 M3..

thanks,
Nivedita
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