From: Hedi Berriche <hedi@sgi.com>
To: Mike Travis <travis@sgi.com>
Cc: paulmck@linux.vnet.ibm.com, Peter Zijlstra <peterz@infradead.org>,
Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Jason Wessel <jason.wessel@windriver.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
Dimitri Sivanich <sivanich@sgi.com>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 9/9] x86/UV: Add ability to disable UV NMI handler
Date: Thu, 12 Sep 2013 20:48:33 +0100 [thread overview]
Message-ID: <20130912194833.GW8742@dangermouse.emea.sgi.com> (raw)
In-Reply-To: <52320F18.4040407@sgi.com>
On Thu, Sep 12, 2013 at 19:59 Mike Travis wrote:
| On 9/12/2013 10:27 AM, Paul E. McKenney wrote:
|
| > But what is it that you are looking for? If you want to silence it
| > completely, the rcu_cpu_stall_suppress boot/sysfs parameter is what
| > you want to use.
|
| We have by default rcutree.rcu_cpu_stall_suppress=1 on the kernel
| cmdline. I'll double check if it was set during my testing.
FWIW, for recent enough kernels the correct boot parameter is
rcupdate.rcu_cpu_stall_suppress.
It used to be rcutree.rcu_cpu_stall_suppress, but that has changed after
commit 6bfc09e.
Cheers,
Hedi.
--
Be careful of reading health books, you might die of a misprint.
-- Mark Twain
next prev parent reply other threads:[~2013-09-12 19:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 22:50 [PATCH 0/9] x86/UV/KDB/NMI: Updates for NMI/KDB handler for SGI UV Mike Travis
2013-09-05 22:50 ` [PATCH 1/9] x86/UV: Move NMI support Mike Travis
2013-09-05 22:50 ` [PATCH 2/9] x86/UV: Update UV support for external NMI signals Mike Travis
2013-09-05 22:50 ` [PATCH 3/9] x86/UV: Add summary of cpu activity to UV NMI handler Mike Travis
2013-09-05 22:50 ` [PATCH 4/9] x86/UV: Add kdump " Mike Travis
2013-09-05 22:50 ` [PATCH 5/9] KGDB/KDB: add support for external NMI handler to call KGDB/KDB Mike Travis
2013-09-06 4:36 ` Jason Wessel
2013-09-05 22:50 ` [PATCH 6/9] x86/UV: Add call to KGDB/KDB from NMI handler Mike Travis
2013-09-05 22:50 ` [PATCH 7/9] KGDB/KDB: add new system NMI entry code to KDB Mike Travis
2013-09-06 5:00 ` Jason Wessel
2013-09-06 16:48 ` Mike Travis
2013-09-05 22:50 ` [PATCH 8/9] x86/UV: Add uvtrace support Mike Travis
2013-09-05 22:50 ` [PATCH 9/9] x86/UV: Add ability to disable UV NMI handler Mike Travis
2013-09-09 12:43 ` Peter Zijlstra
2013-09-09 17:07 ` Mike Travis
2013-09-10 9:03 ` Peter Zijlstra
2013-09-12 17:27 ` Paul E. McKenney
2013-09-12 18:35 ` Paul E. McKenney
2013-09-12 19:08 ` Mike Travis
2013-09-12 18:59 ` Mike Travis
2013-09-12 19:48 ` Hedi Berriche [this message]
2013-09-12 20:17 ` Paul E. McKenney
2013-09-12 20:16 ` Paul E. McKenney
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