From: Peter Zijlstra <peterz@infradead.org>
To: "Mingarelli, Thomas" <Thomas.Mingarelli@hp.com>
Cc: Don Zickus <dzickus@redhat.com>,
"x86@kernel.org" <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Wim Van Sebroeck <wim@iguana.be>
Subject: RE: [PATCH 1/2] watchdog, hpwdt: Remove priority option for NMI callback
Date: Fri, 09 Mar 2012 18:33:09 +0100 [thread overview]
Message-ID: <1331314389.18960.1.camel@twins> (raw)
In-Reply-To: <9774516974AF5F4C8A2C3C69CD34123320369E69@G9W0755.americas.hpqcorp.net>
On Fri, 2012-03-09 at 17:28 +0000, Mingarelli, Thomas wrote:
> Can I register for more than one type? Like NMI_UNKNOWN | NMI_DIE (or
> something like that)?
There's only NMI_LOCAL and NMI_UNKNOWN, and you can only use NMI_LOCAL
if you can tell you generated the NMI. See it as one massively shared
interrupt line.
The NMI_UNKNOWN handler is basically the handler of last resort for
those that cannot multiplex the line, hence the restriction of only
having one.
next prev parent reply other threads:[~2012-03-12 17:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-09 16:37 [PATCH 1/2] watchdog, hpwdt: Remove priority option for NMI callback Don Zickus
2012-03-09 16:37 ` [PATCH 2/2] x86,nmi: Fix page faults by nmiaction if kmemcheck is enabled Don Zickus
2012-03-09 16:51 ` [PATCH 1/2] watchdog, hpwdt: Remove priority option for NMI callback Mingarelli, Thomas
2012-03-09 17:17 ` Don Zickus
2012-03-09 17:19 ` Mingarelli, Thomas
2012-03-09 17:28 ` Mingarelli, Thomas
2012-03-09 17:33 ` Peter Zijlstra [this message]
2012-03-09 18:14 ` Don Zickus
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