linux-kernel - Re: [RESEND] [PATCH v2] [BUGFIX] x86/x86_64: fix CPU offlining triggered "active" device IRQ interrruption

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Message-ID: <20090603164013.GA7566@us.ibm.com>
Date:	Wed, 3 Jun 2009 09:40:13 -0700
From:	Gary Hade <garyhade@...ibm.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Gary Hade <garyhade@...ibm.com>, mingo@...e.hu, mingo@...hat.com,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, x86@...nel.org,
	ebiederm@...ssion.com, yinghai@...nel.org, lcm@...ibm.com
Subject: Re: [RESEND] [PATCH v2] [BUGFIX] x86/x86_64: fix CPU offlining
	triggered "active" device IRQ interrruption

On Tue, Jun 02, 2009 at 09:51:27PM -0700, H. Peter Anvin wrote:
> Gary Hade wrote:
> > Impact: Eliminates an issue that can leave the system in an
> >         unusable state.
> > 
> > This patch addresses an issue where device generated IRQs
> > are no longer seen by the kernel following IRQ affinity
> > migration while the device is generating IRQs at a high rate.
> > 
> 
> This patch doesn't seem to apply to current mainline.
> 
> What is your base?

git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git
which Ingo encouraged me to use because it contained some of 
Yinghai Lu's recent changes that hadn't reached mainline yet.

Gary

-- 
Gary Hade
System x Enablement
IBM Linux Technology Center
503-578-4503  IBM T/L: 775-4503
garyhade@...ibm.com
http://www.ibm.com/linux/ltc
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