linux-kernel - Re: [PATCH 2.6.26 2/25] mdb: Merkey's Kernel Debugger

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Message-ID: <20080806020152.GA24801@one.firstfloor.org>
Date:	Wed, 6 Aug 2008 04:01:52 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	jmerkey@...fmountaingroup.com
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.26 2/25] mdb: Merkey's Kernel Debugger

On Tue, Aug 05, 2008 at 07:24:20PM -0600, jmerkey@...fmountaingroup.com wrote:
> 
> I'll post some patches with these changes and submit it as a module.  I
> will of course need to patch the kernel to introduce the die notifiers
> where
> they are not and there's the issue of cross call NMI to stop other
> processors on SMP.
> 
> That's the real issues, Andi, is the xcall stuff for IPC to control all
> the processors.

NMIs have die notifiers too. That said a cleaner way would be to generalize
the synchronization code already in kdump and reuse that.

-Andi
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