On Tue, Apr 01, 2014 at 04:57:24PM -0700, Paul E. McKenney wrote:
> > [ 917.790265] INFO: rcu_preempt detected stalls on CPUs/tasks:
> > [ 917.791189] (detected by 0, t=6502 jiffies, g=21390, c=21389, q=0)
>
> But the hang didn't happen until grace period #21390. Sigh! That means
> that the trace doesn't tell me about the current grace period.
>
> Thank you for getting this info, but it is beginning to look like
> bisection is necessary here. :-(
ok, I was hoping that wouldn't be the case, but let's see what it turns up.
Dave
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