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

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Message-ID: <4A26014F.4070207@zytor.com>
Date:	Tue, 02 Jun 2009 21:51:27 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Gary Hade <garyhade@...ibm.com>
CC:	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

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?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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