From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Yu, Luming" <luming.yu@intel.com>
Cc: Arjan van de Ven <arjanv@redhat.com>, Pavel Machek <pavel@ucw.cz>,
"Brown, Len" <len.brown@intel.com>,
"Li, Shaohua" <shaohua.li@intel.com>,
"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
acpi-devel@lists.sourceforge.net, "Fu,
Michael" <michael.fu@intel.com>
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.
next prev parent reply other threads:[~2004-12-27 14:49 UTC|newest]
Thread overview: 6+ 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
2004-12-23 8:51 Yu, Luming
2004-12-23 9:05 ` Arjan van de Ven
2004-12-23 13:17 ` Pavel Machek
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