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From: "H. Peter Anvin" <hpa@zytor.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Mark Langsdorf <mark.langsdorf@amd.com>,
	linux-kernel@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: invalidate caches before going into suspend
Date: Wed, 13 Aug 2008 10:37:57 -0700	[thread overview]
Message-ID: <48A31BF5.7060608@zytor.com> (raw)
In-Reply-To: <20080813173507.GA30911@elte.hu>

Ingo Molnar wrote:
>>>
>> Not significantly, but I cannot for my life figure out how it could 
>> help.
>>
>> Either the interrupts will be blocked by the CLI already in effect, or 
>> the additional CLI will not help, either (in fact, it will just 
>> slightly increase the window for something like that to slip in.)
> 
> ah, the main point i tried to make was to have the CLI _before_ the 
> WBINVD - which Mark's patch didnt do.
> 

Ah yes, that's important.

	-hpa

  reply	other threads:[~2008-08-13 17:38 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-13 16:41 invalidate caches before going into suspend Mark Langsdorf
2008-08-13 16:47 ` Ingo Molnar
2008-08-13 16:53   ` H. Peter Anvin
2008-08-13 17:01     ` Ingo Molnar
2008-08-13 17:28       ` H. Peter Anvin
2008-08-13 17:35         ` Ingo Molnar
2008-08-13 17:37           ` H. Peter Anvin [this message]
2008-08-13 17:09   ` Mark Langsdorf
2008-08-13 17:17     ` Linus Torvalds
2008-08-13 17:30       ` Mark Langsdorf
2008-08-13 17:52         ` Ingo Molnar
2008-08-13 18:33           ` [PATCH](retry 2) " Mark Langsdorf
2008-08-13 18:42             ` Arjan van de Ven
2008-08-13 18:47               ` Langsdorf, Mark
2008-08-13 21:32                 ` Arjan van de Ven
2008-08-14 13:45                   ` [PATCH](retry 3) " Mark Langsdorf
2008-08-14 13:49                     ` Ingo Molnar
2008-08-14 14:00                     ` Arjan van de Ven
2008-08-14 14:11                     ` [PATCH](retry 4) " Mark Langsdorf
2008-08-15 12:04                       ` Ingo Molnar
2008-08-13 17:38     ` Ingo Molnar
2008-08-13 19:39 ` Andi Kleen

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