On 01/07/19 21:13, Peter Zijlstra wrote: > On Fri, Jun 28, 2019 at 10:06:18AM +0200, Juri Lelli wrote: > > sched_setscheduler() needs to acquire cpuset_rwsem, but it is currently > > called from an invalid (atomic) context by rcu_spawn_gp_kthread(). > > > > Fix that by simply moving sched_setscheduler_nocheck() call outside of > > the atomic region, as it doesn't actually require to be guarded by > > rcu_node lock. > > Maybe move this earlier in the series such that the bug doesn't manifest > in bisection? OK.
