linux-kernel - Re: [PATCH] paravirt.h

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Message-ID: <44EC21A3.1040905@vmware.com>
Date:	Wed, 23 Aug 2006 02:36:35 -0700
From:	Zachary Amsden <zach@...are.com>
To:	Andi Kleen <ak@...e.de>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	virtualization@...ts.osdl.org,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Andrew Morton <akpm@...l.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] paravirt.h

Andi Kleen wrote:
>> I need to look at the kprobes code in more depth to answer completely.  
>> But in general, there could be a problem if DRs are set to fire on any 
>> EIP 
>>     
>
> kprobes don't use DRs

Good to know.  But int3 breakpoints can still cause horrific breakage in 
the stop_machine code.  I don't know a good way to disallow it.

Zach
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