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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: akpm@linux-foundation.org, Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org, mark.langsdorf@amd.com,
	arekm@maven.pl, "H. Peter Anvin" <hpa@zytor.com>,
	Andi Kleen <andi@firstfloor.org>, Avi Kivity <avi@qumranet.com>
Subject: Re: [patch 2/2] x86 amd fix cmpxchg read acquire barrier
Date: Wed, 22 Apr 2009 23:53:58 +0100	[thread overview]
Message-ID: <20090422235358.0e0cc7f3@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20090422224749.GA22718@Krystal>

> Good point. I should probably configure this as "nothing" unless
> 
> #ifdef CONFIG_X86_64
> #if (defined(CONFIG_GENERIC_CPU) || defined(CONFIG_MK8))
> ...
> #endif
> #endif

Is the erratum only present in 64bit mode ?

Really this needs someone with knowledge of the erratum to characterise
it accurately and the workarounds.

  reply	other threads:[~2009-04-22 22:55 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-22 20:18 [patch 0/2] Fixing AMD cmpxchg "missing lfence" mess Mathieu Desnoyers
2009-04-22 20:18 ` [patch 1/2] x86: cleanup alternative.h Mathieu Desnoyers
2009-04-28 13:05   ` [GIT PULL] " Mathieu Desnoyers
2009-04-28 14:58     ` Ingo Molnar
2009-04-28 15:13       ` [GIT PULL] x86: cleanup alternative.h (v2) Mathieu Desnoyers
2009-04-29  6:17         ` [tip:x86/asm] x86: clean up alternative.h tip-bot for Mathieu Desnoyers
2009-04-29  6:22           ` Mathieu Desnoyers
2009-04-28 17:40       ` [GIT PULL] x86: cleanup alternative.h H. Peter Anvin
2009-04-28 18:11         ` Mathieu Desnoyers
2009-04-28 18:13         ` [GIT PULL] x86: cleanup alternative.h (v3) Mathieu Desnoyers
2009-04-22 20:18 ` [patch 2/2] x86 amd fix cmpxchg read acquire barrier Mathieu Desnoyers
2009-04-22 20:59   ` Alan Cox
2009-04-22 22:47     ` Mathieu Desnoyers
2009-04-22 22:53       ` Alan Cox [this message]
2009-04-22 23:26         ` Mathieu Desnoyers
2009-04-23  8:06   ` Ingo Molnar
2009-04-23 13:19     ` Mathieu Desnoyers
2009-04-23 13:41       ` Arkadiusz Miskiewicz
2009-04-23 22:17         ` Mathieu Desnoyers
2009-04-25  8:19   ` Pavel Machek
2009-05-02 15:55     ` Mathieu Desnoyers

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