linux-kernel - Re: [RFC] hwbkpt: Hardware breakpoints (was Kwatch)

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Date:	Tue, 26 Jun 2007 22:43:59 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Roland McGrath <roland@...hat.com>
cc:	Prasanna S Panchamukhi <prasanna@...ibm.com>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] hwbkpt: Hardware breakpoints (was Kwatch)

On Tue, 26 Jun 2007, Roland McGrath wrote:

> I needed the attached patch on top of the bptest patch for the current
> code.  Btw, that is a very nice little tester!

I had already made some of those changes (the ones needed to make 
bptest build with the new hw_breakpoint code).  I'll add in the others.

> Below that is a patch to go on top of your current patch, with x86-64
> support.  I've only tried a few trivial tests with bptest (including an
> 8-byte bp), which worked great.  It is a pretty faithful copy of your i386
> changes.  I'm still not sure we have all that right, but you might as well
> incorporate this into your patch.  You should change the x86_64 code in
> parallel with any i386 changes we decide on later, and I can test it and
> send you any typo fixups or whatnot.

Right.  I may update a few comments...

Alan Stern

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