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From: David Miller <davem@davemloft.net>
To: peterz@infradead.org
Cc: mingo@elte.hu, tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: cpu_clock() in NMIs
Date: Mon, 14 Dec 2009 21:36:01 -0800 (PST)	[thread overview]
Message-ID: <20091214.213601.77046339.davem@davemloft.net> (raw)
In-Reply-To: <1260819170.4165.346.camel@twins>

From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 14 Dec 2009 20:32:50 +0100

> OK, you convinced me plenty ;-)
> 
> I guess we need some debug code to ensure we don't grow any
> local_irq_save/restore/disable code in NMI paths, and maybe document
> this some place.
> 
> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

Ingo and others.  I'd like to get this kernel/sched_clock.c IRQ
disabling patch into Linus's tree and then into -stable because the
fix for sparc64 perf depends upon it.

Thanks.

  reply	other threads:[~2009-12-15  5:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-14  2:25 cpu_clock() in NMIs David Miller
2009-12-14  9:02 ` Peter Zijlstra
2009-12-14 19:09   ` David Miller
2009-12-14 19:32     ` Peter Zijlstra
2009-12-15  5:36       ` David Miller [this message]
2009-12-14 19:57     ` Mike Frysinger
2009-12-15  8:11 ` [tip:sched/urgent] sched: Fix cpu_clock() in NMIs, on !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK tip-bot for David Miller

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