linux-kernel - Re: [PATCH] Fix potential interrupts during alternative patching [was Re: [RFC] Avoid PIT SMP lockups]

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Date:	Fri, 20 Oct 2006 13:36:05 +0300
From:	"S.Çağlar Onur" <caglar@...dus.org.tr>
To:	Zachary Amsden <zach@...are.com>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>, Andi Kleen <ak@...e.de>,
	lkml <linux-kernel@...r.kernel.org>,
	Virtualization Mailing List <virtualization@...ts.osdl.org>,
	Greg KH <greg@...ah.com>, Andrew Morton <akpm@...l.org>
Subject: Re: [PATCH] Fix potential interrupts during alternative patching [was	Re: [RFC] Avoid PIT SMP lockups]

19 Eki 2006 Per 12:00 tarihinde, Zachary Amsden şunları yazmıştı: 
> Jeremy Fitzhardinge wrote:
> > Zachary Amsden wrote:
> >> So this patch is an obvious bugfix - please apply, and to stable as
> >> well. I'm not sure when this broke, but taking interrupts in the
> >> middle of self modifying code is not a pretty sight.
> >
> > I had actually seen this when I built the Xen paravirt kernel with SMP
> > on, but I assumed it was something in the pv_ops tree rather than
> > mainline...
>
> Very likely to show up in qemu as well, if you use that.

I can confirm qemu and virtual pc 2004 gaves same exception without that 
patch.

-- 
S.Çağlar Onur <caglar@...dus.org.tr>
http://cekirdek.pardus.org.tr/~caglar/

Linux is like living in a teepee. No Windows, no Gates and an Apache in house!

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