linux-kernel - Re: NOHZ: WARNING: at arch/x86/kernel/smp.c:123 native_smp_send

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Message-ID: <20130515224358.GF11783@pd.tnic>
Date:	Thu, 16 May 2013 00:43:58 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Tony Luck <tony.luck@...el.com>, linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: Re: NOHZ: WARNING: at arch/x86/kernel/smp.c:123
 native_smp_send_reschedule

On Wed, May 15, 2013 at 11:45:28AM -0700, Paul E. McKenney wrote:
> Does the following patch help?

Hmm, I just tried on 3.10-rc1

CONFIG_NO_HZ_FULL_ALL=y

on the one hand and then

CONFIG_NO_HZ_FULL=y
# CONFIG_NO_HZ_FULL_ALL is not set

with "nohz_full=4-7 rcu_nocbs=4-7" on the cmdline and I don't see the
splats anymore.

Do I need to try something else?

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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