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From: Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
To: "Yu, Luming" <luming.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Arjan van de Ven <arjanv-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>,
	"Brown, Len" <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"Li,
	Shaohua" <shaohua.li-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"Pallipadi,
	Venkatesh"
	<venkatesh.pallipadi-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Linux Kernel Mailing List
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	"Fu,
	Michael" <michael.fu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: RE: the patch of restore-pci-config-space-on-resume break S1 on ASUS2400 NE
Date: Mon, 27 Dec 2004 13:44:52 +0000	[thread overview]
Message-ID: <1104155089.20693.1.camel@localhost.localdomain> (raw)
In-Reply-To: <3ACA40606221794F80A5670F0AF15F8406A26924@pdsmsx403>

On Llu, 2004-12-27 at 10:14, Yu, Luming wrote:
>  Actually, the kernel (after removing restore-pci-config-space-on-resume patch) with option "ide=nodma" 
> can work with S1 suspend/resume without any hang so far.
>   So my suggestion for IDE driver is to disable DMA before entering S1, and enable
> DMA after resuming from S1 if DMA was enabled.  I need help from IDE guys to confirm it.

The IDE layer has no problem doing this, although it raises interesting
questions about why it would be neccessary. 



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  reply	other threads:[~2004-12-27 13:44 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-27 10:14 the patch of restore-pci-config-space-on-resume break S1 on ASUS2400 NE Yu, Luming
2004-12-27 13:44 ` Alan Cox [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-12-23 12:04 Yu, Luming

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