linux-kernel - Re: 2.6.25 -- long standing bug with usb after resume with 4GB ram

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Date:	Thu, 13 Mar 2008 21:27:10 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Pavel Machek <pavel@....cz>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	Greg KH <greg@...ah.com>, stern@...land.harvard.edu,
	linux-usb@...r.kernel.org, oliver@...kum.name
Subject: Re: 2.6.25 -- long standing bug with usb after resume with 4GB ram

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
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