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Message-Id: <1218122251.8625.40.camel@twins>
Date: Thu, 07 Aug 2008 17:17:31 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: jmerkey@...fmountaingroup.com
Cc: Andi Kleen <andi@...stfloor.org>,
Jason Wessel <jason.wessel@...driver.com>,
Nick Piggin <nickpiggin@...oo.com.au>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Stefan Richter <stefanr@...6.in-berlin.de>,
Josh Boyer <jwboyer@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [ANNOUNCE] Merkey's Kernel Debugger
On Thu, 2008-08-07 at 06:45 -0600, jmerkey@...fmountaingroup.com wrote:
> Also, whoever wrote "/Documentation/volatiles_are_evil" must not have
> worked with the busted-ass GNU compiler that optimizes away global
> variables and busts SMP dependent code. I am not going to remove the
> volatile declarations needed for SMP coordination in the debugger since
> the code breaks when removed. GCC will cause massive breakage of SMP code
> if you do not declare certain variables as volatile.
Even with proper barrier() usage?
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