Messages in this thread | | | Subject | Re: [PATCH RFC] sysrq,rcu: suppress RCU stall warnings while sysrq runs | From | Mike Galbraith <> | Date | Fri, 25 Apr 2014 07:35:53 +0200 |
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On Thu, 2014-04-24 at 09:04 -0400, Rik van Riel wrote:
> diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c > index 4c0a9b0..2ac3289 100644 > --- a/kernel/rcu/update.c > +++ b/kernel/rcu/update.c > @@ -320,6 +320,17 @@ int rcu_jiffies_till_stall_check(void) > return till_stall_check * HZ + RCU_STALL_DELAY_DELTA; > } > > +void rcu_sysrq_start(void) > +{ > + rcu_cpu_stall_suppress = 2; > +}
Monster box folks seem to routinely kill that at boot, probably won't want it coming back to life at the poke of a button.
-Mike
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