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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Pavel Machek <pavel@ucw.cz>
Subject: Re: 2.6.25 -- long standing bug with usb after resume with 4GB ram
Date: Thu, 13 Mar 2008 21:27:10 +0100
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Cc: kernel list <linux-kernel@vger.kernel.org>, Greg KH <greg@kroah.com>,
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On Thursday, 13 of March 2008, Pavel Machek wrote:
> Hi!
> 
> There are problems with usb after suspend/resume... it works as long
> as memory is limited to 3G -- probably because iommu/agpgart/something
> is not used in such case.
> 
> rmmod/insmod of ehci_hcd & ohci_hcd fixes that.
> 
> For testing with 2.6.25, you'll need aperture_64.c patch that makes
> iommu as nosave (or it oopses).

Any chance to push that one upstream?

Rafael