On Thu, Dec 25, 2014 at 10:10:45PM +0900, Tetsuo Handa wrote: > >From 052595ab1a1d1c5668d9de61395c9cc17694597e Mon Sep 17 00:00:00 2001 > From: Tetsuo Handa <[email protected]> > Date: Thu, 25 Dec 2014 15:51:21 +0900 > Subject: [PATCH] sched/fair: Fix RCU stall upon ENOMEM at > sched_create_group(). > > When alloc_fair_sched_group() in sched_create_group() failed, > free_sched_group() is called, and free_fair_sched_group() is called by > free_sched_group(). Since destroy_cfs_bandwidth() is called by > free_fair_sched_group() without calling init_cfs_bandwidth(), > RCU stall occurs at hrtimer_cancel(). >
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