Messages in this thread | | | From | "Levin, Alexander (Sasha Levin)" <> | Subject | Re: [PATCH v3 tip/core/rcu 40/40] rcu: Make non-preemptive schedule be Tasks RCU quiescent state | Date | Thu, 28 Sep 2017 16:23:52 +0000 |
| |
On Thu, Sep 28, 2017 at 06:08:56PM +0200, Peter Zijlstra wrote: >On Thu, Sep 28, 2017 at 03:38:16PM +0000, Levin, Alexander (Sasha Levin) wrote: >> On Thu, Sep 28, 2017 at 05:30:55AM -0700, Paul E. McKenney wrote: > >> >Hmmm... kernel/rcu/tree_plugin.h:329 thinks that someone slept (as opposed >> >to was preempted) in an RCU read-side critical section. > >Sasha, was this on one of those kernels that did a printk() from >scheduler context?
No, it was an older kernel (about a month old -next), I also didn't do any CPU hotplug in this set of tests.
--
Thanks, Sasha
| |