linux-kernel - Re: [RFC] sched: Add a new lockless wake-from-idle implementation

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Date:	Fri, 14 Feb 2014 22:19:17 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Mike Galbraith <bitbucket@...ine.de>, X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] sched: Add a new lockless wake-from-idle implementation

On Fri, Feb 14, 2014 at 12:17:27PM -0800, Andy Lutomirski wrote:
> Either you have a bug or I rebased it wrong.  With the attached
> rebased version, I hit WARN_ON_ONCE(irqs_disabled()) in
> cpu_idle_loop() on a semi-regular basis when I boot with:

Its got a bug; I got it too, but it did boot and build the next kernel.

I didn't get any time today to look at things; I'll try and prod at
things a bit more next week.


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