From: Peter Zijlstra <peterz@infradead.org>
To: Don Zickus <dzickus@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>,
Robert Richter <robert.richter@amd.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
"Lin, Ming M" <ming.m.lin@intel.com>, Ingo Molnar <mingo@elte.hu>,
"fweisbec@gmail.com" <fweisbec@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Yinghai Lu <yinghai@kernel.org>, Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] perf, x86: try to handle unknown nmis with running perfctrs
Date: Mon, 16 Aug 2010 16:37:20 +0200 [thread overview]
Message-ID: <1281969440.1926.1478.camel@laptop> (raw)
In-Reply-To: <20100811123615.GA4879@redhat.com>
On Wed, 2010-08-11 at 08:36 -0400, Don Zickus wrote:
> The only thing that might screw this up would be an SMI which takes longer
> than 1000 but that should be rare and would probably be related to the
> unknown NMI anyway.
Long running SMIs aren't nearly as rare as you'd want them to be.
Hitting one in exactly the right spot will be, but given the numbers its
going to happen and make us scratch our heads..
next prev parent reply other threads:[~2010-08-16 14:37 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-04 9:21 A question of perf NMI handler Lin Ming
2010-08-04 9:50 ` Peter Zijlstra
2010-08-04 10:01 ` Robert Richter
2010-08-04 10:24 ` Peter Zijlstra
2010-08-04 10:29 ` Robert Richter
2010-08-04 14:00 ` Don Zickus
2010-08-04 14:11 ` Peter Zijlstra
2010-08-04 14:52 ` Don Zickus
2010-08-04 15:02 ` Peter Zijlstra
2010-08-04 15:18 ` Cyrill Gorcunov
2010-08-04 15:50 ` Don Zickus
2010-08-04 16:10 ` Cyrill Gorcunov
2010-08-04 16:20 ` Don Zickus
2010-08-04 16:39 ` Cyrill Gorcunov
2010-08-04 18:48 ` Robert Richter
2010-08-04 19:22 ` Andi Kleen
2010-08-04 19:26 ` Cyrill Gorcunov
2010-08-06 6:52 ` Robert Richter
2010-08-06 14:21 ` Don Zickus
2010-08-09 19:48 ` [PATCH] perf, x86: try to handle unknown nmis with running perfctrs Robert Richter
2010-08-09 20:02 ` Cyrill Gorcunov
2010-08-10 7:42 ` Robert Richter
2010-08-10 16:16 ` Cyrill Gorcunov
2010-08-10 16:41 ` Robert Richter
2010-08-10 17:24 ` Cyrill Gorcunov
2010-08-10 19:05 ` Robert Richter
2010-08-10 19:24 ` Cyrill Gorcunov
2010-08-12 13:24 ` Robert Richter
2010-08-12 14:31 ` Cyrill Gorcunov
2010-08-10 20:48 ` Don Zickus
2010-08-11 2:44 ` Frederic Weisbecker
2010-08-11 11:10 ` Robert Richter
2010-08-11 12:44 ` Don Zickus
2010-08-11 14:03 ` Robert Richter
2010-08-11 14:32 ` Don Zickus
2010-08-13 4:37 ` Frederic Weisbecker
2010-08-13 8:22 ` Robert Richter
2010-08-14 1:28 ` Frederic Weisbecker
2010-08-14 2:29 ` Robert Richter
2010-08-11 12:39 ` Don Zickus
2010-08-11 3:19 ` Huang Ying
2010-08-11 12:36 ` Don Zickus
2010-08-16 14:37 ` Peter Zijlstra [this message]
2010-08-11 22:00 ` [PATCH -v2] " Robert Richter
2010-08-12 13:10 ` Robert Richter
2010-08-12 18:21 ` Don Zickus
2010-08-16 7:37 ` Robert Richter
2010-08-12 13:52 ` Don Zickus
2010-08-13 4:25 ` Frederic Weisbecker
2010-08-16 14:48 ` Peter Zijlstra
2010-08-16 16:27 ` Cyrill Gorcunov
2010-08-16 17:16 ` Robert Richter
2010-08-16 19:06 ` Cyrill Gorcunov
2010-08-16 19:13 ` Peter Zijlstra
2010-08-16 19:18 ` Cyrill Gorcunov
2010-08-16 22:55 ` Robert Richter
2010-08-17 15:23 ` Cyrill Gorcunov
2010-08-17 15:22 ` [PATCH -v3] " Robert Richter
2010-08-17 16:17 ` Cyrill Gorcunov
2010-08-19 10:45 ` Peter Zijlstra
2010-08-19 12:39 ` Robert Richter
2010-08-19 14:12 ` Don Zickus
2010-08-19 14:27 ` Peter Zijlstra
2010-08-19 15:20 ` Don Zickus
2010-08-19 17:43 ` Cyrill Gorcunov
2010-08-19 17:53 ` Peter Zijlstra
2010-08-19 21:58 ` Don Zickus
2010-08-20 8:50 ` Peter Zijlstra
2010-08-20 1:50 ` Don Zickus
2010-08-20 8:16 ` Ingo Molnar
2010-08-20 10:04 ` Peter Zijlstra
2010-08-20 10:30 ` Cyrill Gorcunov
2010-08-20 12:39 ` Don Zickus
2010-08-20 13:27 ` Ingo Molnar
2010-08-20 13:51 ` Don Zickus
2010-08-20 14:17 ` Ingo Molnar
2010-08-20 20:45 ` Cyrill Gorcunov
2010-08-24 21:48 ` Don Zickus
2010-08-20 8:36 ` Robert Richter
2010-08-20 14:17 ` [tip:perf/urgent] perf, x86: Fix handle_irq return values tip-bot for Peter Zijlstra
2010-08-20 14:17 ` [tip:perf/urgent] perf, x86: Try to handle unknown nmis with an enabled PMU tip-bot for Robert Richter
2010-08-06 15:35 ` A question of perf NMI handler Andi Kleen
2010-08-04 15:45 ` Don Zickus
2010-08-06 15:37 ` Andi Kleen
2010-08-04 13:54 ` Don Zickus
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