Messages in this thread | | | Subject | Re: [PATCH 2/2] sched: Fix next_balance logic in rebalance_domains() and idle_balance() | From | Jason Low <> | Date | Fri, 09 May 2014 10:29:00 -0700 |
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On Fri, 2014-05-09 at 11:08 +0200, Peter Zijlstra wrote: > On Thu, May 08, 2014 at 05:49:22PM -0700, Jason Low wrote: > > On Thu, 2014-05-08 at 15:14 -0700, Jason Low wrote: > > > Hi Ingo, Peter, > > > > > > Were there NULL domains on the test system? If so, I think we can > > > address the problem by doing update_next_balance() only if the below > > > rcu_dereference_check_sched_domain() returns a non-null domain. > > > > Also, below is a patch which has the change: > > > > Thanks, and yes, NULL domains are a perfectly normal thing to have > (though not common on normal boot paths).
Okay. Likewise, on my test machine, I offline all but 1 CPU in order to try reproducing the issue.
Thanks, Jason
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