linux-kernel - Re: [tip:smp/hotplug] idle: Implement generic idle function

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Message-ID: <alpine.LFD.2.02.1304161527120.21884@ionos>
Date:	Tue, 16 Apr 2013 15:28:07 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Tony Luck <tony.luck@...il.com>
cc:	Ingo Molnar <mingo@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Peter Zijlstra <peterz@...radead.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	magnus.damm@...il.com
Subject: Re: [tip:smp/hotplug] idle: Implement generic idle function

On Mon, 15 Apr 2013, Tony Luck wrote:

> Built next-20130415 and got this on ia64 early in boot:
> 
> WARNING: at kernel/cpu/idle.c:94 cpu_idle_loop+0x360/0x380()

Hmm, is safe_halt() returning with interrupts disabled? If yes, it
lacks a local_irq_enable().

Thanks,

	tglx
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