linux-kernel - Re: [PATCH bisected regression] sched: rebuild sched domains at suspend/resume

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Date:	Tue, 24 Apr 2012 19:15:00 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Cc:	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Prashanth Nageshappa <prashanth@...ux.vnet.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux PM mailing list <linux-pm@...r.kernel.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Nikunj A Dadhania <nikunj@...ux.vnet.ibm.com>
Subject: Re: [PATCH bisected regression] sched: rebuild sched domains at
 suspend/resume

On Mon, 2012-04-23 at 18:44 +0530, Srivatsa S. Bhat wrote:
> 
> Basically, our assumption that we are good to go (even with stale sched
> domains) as long as the dying cpu was not in the cpu_active_mask, was wrong. 

Argh, that means cpu_active_mask is pointless.. so we should either fix
that or remove that thing entirely.

Anyway, tglx is reworking all that hotplug stuff as we speak, I think
its best to wait for that dust to settle before we go make the mess even
bigger.
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