linux-kernel - Re: [patch 1/4] Ignore stolen time in the softlockup watchdog

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Date:	Tue, 24 Apr 2007 13:52:27 -0700
From:	Daniel Walker <dwalker@...sta.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Prarit Bhargava <prarit@...hat.com>,
	Rick Lindsley <ricklind@...ibm.com>,
	john stultz <johnstul@...ibm.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Eric Dumazet <dada1@...mosbay.com>,
	virtualization@...ts.osdl.org,
	Chris Lalancette <clalance@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch 1/4] Ignore stolen time in the softlockup watchdog

On Tue, 2007-04-24 at 13:24 -0700, Jeremy Fitzhardinge wrote:

> And sched_clock's use of local_irq_save/restore appears to be absolutely
> correct, so I think it must be triggering a bug in either the self-tests
> or lockdep itself.

Why does sched_clock need to disable interrupts?

Daniel

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