From: Don Zickus <dzickus@redhat.com>
To: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Ingo Molnar <mingo@elte.hu>, "Huang, Ying" <ying.huang@intel.com>,
"Maciej W. Rozycki" <macro@linux-mips.org>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH -tip 2/2 resend] x86, traps: Drop nmi_reason_lock until it is really needed
Date: Wed, 2 Mar 2011 14:46:11 -0500 [thread overview]
Message-ID: <20110302194611.GZ11359@redhat.com> (raw)
In-Reply-To: <4D6E9700.50501@openvz.org>
On Wed, Mar 02, 2011 at 10:14:08PM +0300, Cyrill Gorcunov wrote:
> >
> > Now this spinlock doesn't affect them, because they registered an nmi
> > handler to catch it and dump their stack (I modified the code to use
> > DIE_NMIUNKNOWN instead of DIE_NMI to avoid conflict with the
> > nmi_watchdog). But I don't know what the affect is, if that spinlock is
> > not there (I sent a private email to SGI inquiring, their guy wasn't
> > around this week).
>
> Don, do you know -- was new nmi-watchdog system tested with UV machine
> somewhere?
They are testing it now, I am working through the issues with them.
Cheers,
Don
prev parent reply other threads:[~2011-03-02 19:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-02 15:32 [PATCH -tip 2/2 resend] x86, traps: Drop nmi_reason_lock until it is really needed Cyrill Gorcunov
2011-03-02 15:46 ` Ingo Molnar
2011-03-02 15:55 ` Cyrill Gorcunov
2011-03-02 16:03 ` Ingo Molnar
2011-03-02 16:13 ` Cyrill Gorcunov
2011-03-02 18:40 ` Don Zickus
2011-03-02 19:14 ` Cyrill Gorcunov
2011-03-02 19:46 ` Don Zickus [this message]
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