From: Ingo Molnar <mingo@kernel.org>
To: Mike Travis <travis@sgi.com>
Cc: Jason Wessel <jason.wessel@windriver.com>,
Dimitri Sivanich <sivanich@sgi.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
kgdb-bugreport@lists.sourceforge.net, x86@kernel.org,
linux-kernel@vger.kernel.org, Russ Anderson <rja@sgi.com>,
Alexander Gordeev <agordeev@redhat.com>,
Suresh Siddha <suresh.b.siddha@intel.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Steffen Persvold <sp@numascale.com>
Subject: Re: [PATCH 13/14] x86/UV: Update UV support for external NMI signals
Date: Thu, 14 Mar 2013 08:20:19 +0100 [thread overview]
Message-ID: <20130314072019.GC7869@gmail.com> (raw)
In-Reply-To: <20130312193825.244350065@gulag1.americas.sgi.com>
* Mike Travis <travis@sgi.com> wrote:
>
> There is an exception where the NMI_LOCAL notifier chain is used. When
> the perf tools are in use, it's possible that our NMI was captured by
> some other NMI handler and then ignored. We set a per_cpu flag for
> those CPUs that ignored the initial NMI, and then send them an IPI NMI
> signal.
"Other" NMI handlers should never lose NMIs - if they do then they should
be fixed I think.
Thanks,
Ingo
next prev parent reply other threads:[~2013-03-14 7:20 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-12 19:38 [PATCH 00/14] x86/UV/KDB/NMI: Updates for NMI/KDB handler for SGI UV Mike Travis
2013-03-12 19:38 ` [PATCH 01/14] KDB: fix the interrupt of the KDB btc command Mike Travis
2013-03-12 19:38 ` [PATCH 02/14] KDB: fix errant character in KDB show regs Mike Travis
2013-03-12 19:38 ` [PATCH 03/14] KDB: up the default LINES value Mike Travis
2013-03-12 19:38 ` [PATCH 04/14] KDB: allow KDB modules to be external modules Mike Travis
2013-03-12 19:38 ` [PATCH 05/14] KDB: add more exports for supporting KDB modules Mike Travis
2013-03-12 20:09 ` Eric W. Biederman
2013-03-12 22:03 ` Mike Travis
2013-03-12 22:13 ` Greg Kroah-Hartman
2013-03-12 22:26 ` Mike Travis
2013-03-12 22:39 ` Eric W. Biederman
2013-03-12 23:03 ` Mike Travis
2013-03-12 20:23 ` Greg Kroah-Hartman
2013-03-12 22:01 ` Thomas Gleixner
2013-03-12 22:08 ` Mike Travis
2013-03-12 19:38 ` [PATCH 06/14] KDB: consolidate KDB grep code Mike Travis
2013-03-12 19:38 ` [PATCH 07/14] KDB: clean up KDB grep code, add some options Mike Travis
2013-03-12 19:38 ` [PATCH 08/14] KDB: Restore call to kdump from KDB Mike Travis
2013-03-12 19:38 ` [PATCH 09/14] KDB: Add pshelp command Mike Travis
2013-03-12 19:38 ` [PATCH 10/14] KGDB/KDB: add support for external NMI handler to call KGDB/KDB Mike Travis
2013-03-12 19:38 ` [PATCH 11/14] x86/UV: Move NMI support Mike Travis
2013-03-12 19:38 ` [PATCH 12/14] x86/UV: Add uvtrace support Mike Travis
2013-03-12 19:38 ` [PATCH 13/14] x86/UV: Update UV support for external NMI signals Mike Travis
2013-03-14 7:20 ` Ingo Molnar [this message]
2013-03-20 6:13 ` Mike Travis
2013-03-21 11:51 ` Ingo Molnar
2013-03-12 19:38 ` [PATCH 14/14] x86/UV: Add call to KGDB/KDB from NMI handler Mike Travis
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