Date: Thu, 15 Jan 2004 19:15:10 -0600
From: Matt Mackall <mpm@selenic.com>
To: Andi Kleen <ak@colin2.muc.de>
Cc: George Anzinger <george@mvista.com>, Andi Kleen <ak@muc.de>,
       linux-kernel@vger.kernel.org
Subject: Re: [discuss] Re: kgdb for x86_64 2.6 kernels
Message-ID: <20040116011510.GM28521@waste.org>
References: <1d3r0-1tw-3@gated-at.bofh.it> <1dbI9-89t-7@gated-at.bofh.it> <1dEqx-F0-1@gated-at.bofh.it> <1dMRc-6DQ-3@gated-at.bofh.it> <1e2Mk-6YA-17@gated-at.bofh.it> <1e2Mo-6YA-31@gated-at.bofh.it> <1e3fi-4nG-5@gated-at.bofh.it> <m3ptdlwsf5.fsf@averell.firstfloor.org> <4006512A.7080002@mvista.com> <20040115085217.GA43298@colin2.muc.de>
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On Thu, Jan 15, 2004 at 09:52:17AM +0100, Andi Kleen wrote:
> On Thu, Jan 15, 2004 at 12:36:58AM -0800, George Anzinger wrote:
> > Now that is interesting.  As I read it, the debug port is programed the 
> > same way in all the USB chips (given it exists at all).  AND it is much 
> 
> Yep, it's not PIO, but polled MMIO. Sorry for spreading misinformation.
> 
> > easier to use. Anyone care to put together a polling driver that makes it 
> > look like RS232 on the host end given that we use a controller to 
> > controller cable?
> 
> I suspect all laptop users with kernel bugs will admire whoever does that ;-)

I've been thinking about doing this, may get around to it eventually.

-- 
Matt Mackall : http://www.selenic.com : Linux development and consulting
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