From: Andi Kleen <ak@suse.de>
To: Zachary Amsden <zach@vmware.com>
Subject: Re: [PATCH 19/21] i386 Kprobes semaphore fix
Date: Fri, 11 Nov 2005 16:27:13 +0100
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Cc: Ingo Molnar <mingo@elte.hu>, virtualization@lists.osdl.org,
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       Linus Torvalds <torvalds@osdl.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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       Zwane Mwaikambo <zwane@arm.linux.org.uk>,
       Martin Bligh <mbligh@mbligh.org>,
       Pratap Subrahmanyam <pratap@vmware.com>,
       Christopher Li <chrisl@vmware.com>,
       "Eric W. Biederman" <ebiederm@xmission.com>, prasanna@in.ibm.com,
       ananth@in.ibm.com, anil.s.keshavamurthy@intel.com, davem@davemloft.net
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On Wednesday 09 November 2005 18:52, Zachary Amsden wrote:

> Well, if there is a justification for it, that means we really should
> handle all the nasty EIP conversion cases due to segmentation and v8086
> mode in the kprobes code.  I was hoping that might not be the case.

Or just forbid kprobes for 16bit processes (or anything running in a non GDT
code segment). Would be perfectly reasonable IMHO.

-Andi
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