From: Ingo Molnar <mingo@elte.hu>
To: Robert Richter <robert.richter@amd.com>
Cc: Don Zickus <dzickus@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Lin Ming <ming.m.lin@intel.com>,
"fweisbec@gmail.com" <fweisbec@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Huang, Ying" <ying.huang@intel.com>,
Yinghai Lu <yinghai@kernel.org>, Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH -v3] perf, x86: try to handle unknown nmis with running perfctrs
Date: Wed, 25 Aug 2010 13:19:44 +0200 [thread overview]
Message-ID: <20100825111944.GA21682@elte.hu> (raw)
In-Reply-To: <20100825110218.GG3198@erda.amd.com>
* Robert Richter <robert.richter@amd.com> wrote:
> On 25.08.10 06:41:30, Ingo Molnar wrote:
>
> > > > > > Uhhuh. NMI received for unknown reason 00 on CPU 9.
> > > > > > Do you have a strange power saving mode enabled?
> > > > > > Dazed and confused, but trying to continue
> >
> > Before the two patches i did not get these messages at all, on any
> > of the systems.
>
> Yes, because all were eaten by NOTIFY_STOP, and that's why we also
> lose NMIs from other sources, like the nmi button. The patches try to
> fix this.
I understand that, but obviously the patches need to fix the lack of
messages without introducing new regressions: such as messages not seen
before and CPUs with stuck NMIs.
Thanks,
Ingo
next prev parent reply other threads:[~2010-08-25 11:20 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-20 15:05 [PATCH -v3] perf, x86: try to handle unknown nmis with running perfctrs Don Zickus
2010-08-20 15:25 ` Ingo Molnar
2010-08-23 8:53 ` Ingo Molnar
2010-08-24 16:22 ` Cyrill Gorcunov
2010-08-24 17:09 ` Robert Richter
2010-08-24 17:20 ` Cyrill Gorcunov
2010-08-24 17:21 ` Cyrill Gorcunov
2010-08-24 17:15 ` Robert Richter
2010-08-24 17:28 ` Cyrill Gorcunov
2010-08-24 18:46 ` Don Zickus
2010-08-24 18:54 ` Cyrill Gorcunov
2010-08-24 19:52 ` Cyrill Gorcunov
2010-08-24 20:27 ` Don Zickus
2010-08-24 20:40 ` Cyrill Gorcunov
2010-08-25 23:52 ` Frederic Weisbecker
2010-08-26 9:11 ` Cyrill Gorcunov
2010-08-25 10:20 ` Robert Richter
2010-08-26 21:14 ` Don Zickus
2010-08-27 7:51 ` Robert Richter
2010-08-27 13:39 ` Don Zickus
2010-08-27 8:10 ` Robert Richter
2010-08-27 13:44 ` Don Zickus
2010-08-27 14:05 ` Robert Richter
2010-08-27 15:05 ` Don Zickus
2010-08-27 15:48 ` Robert Richter
2010-08-27 18:57 ` Don Zickus
2010-08-27 19:00 ` Yinghai Lu
2010-08-27 19:33 ` Robert Richter
2010-08-25 9:48 ` Robert Richter
2010-08-25 10:41 ` Ingo Molnar
2010-08-25 11:00 ` Ingo Molnar
2010-08-25 20:11 ` Don Zickus
2010-08-25 20:24 ` Cyrill Gorcunov
2010-08-25 21:20 ` Don Zickus
2010-08-25 21:36 ` Cyrill Gorcunov
2010-08-26 9:00 ` Robert Richter
2010-08-26 9:18 ` Cyrill Gorcunov
2010-08-26 14:31 ` Don Zickus
2010-08-26 15:22 ` Don Zickus
2010-08-26 15:34 ` Cyrill Gorcunov
2010-08-26 16:40 ` Don Zickus
2010-08-26 18:02 ` Cyrill Gorcunov
2010-08-27 7:57 ` Robert Richter
2010-08-27 8:11 ` Peter Zijlstra
2010-08-27 8:31 ` Robert Richter
2010-08-25 11:02 ` Robert Richter
2010-08-25 11:19 ` Ingo Molnar [this message]
2010-08-20 23:31 ` Don Zickus
-- strict thread matches above, loose matches on Subject: below --
2010-08-04 15:18 A question of perf NMI handler 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 19:26 ` 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
2010-08-17 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
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