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Subject: Re: load balancing regression since commit 367456c7
From: Tim Chen <tim.c.chen@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>, Alex Shi <alex.shi@intel.com>,
        Ying <ying.huang@intel.com>,
        linux-kernel <linux-kernel@vger.kernel.org>
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Date: Wed, 25 Apr 2012 10:38:57 -0700
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On Wed, 2012-04-25 at 16:56 +0200, Peter Zijlstra wrote:
> On Fri, 2012-04-20 at 19:33 +0200, Peter Zijlstra wrote:
> > 
> > OK, I'll go stare at the cgroup part then.. Thanks!
> > 
> Ok, I could reproduce when using cgroups, the below fixes it for me, can
> you confirm?
> 
> ---

Mmm... I got the following error when I try to compile the patch on latest kernel tip:

kernel/sched/fair.c:3263:3: error: implicit declaration of function ‘static_branch_LB_MIN’ [-Werror=implicit-function-declaration]
kernel/sched/fair.c:3263:46: error: ‘__SCHED_FEAT_LB_MIN’ undeclared (first use in this function)
kernel/sched/fair.c:3263:46: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors
make[2]: *** [kernel/sched/fair.o] Error 1
make[1]: *** [kernel/sched] Error 2
make: *** [kernel] Error 2

Tim