linux-kernel - Re: [PATCH] x86/PCI: setup data may be in highmem

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Message-ID: <1370690248.2938.65.camel@sauron.fi.intel.com>
Date:	Sat, 8 Jun 2013 11:14:08 +0000
From:	"Bityutskiy, Artem" <artem.bityutskiy@...el.com>
To:	Matt Fleming <matt@...sole-pimps.org>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"Fleming, Matt" <matt.fleming@...el.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	"Seth Forshee" <seth.forshee@...onical.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH] x86/PCI: setup data may be in highmem

On Sat, 2013-06-08 at 14:15 +0300, Artem Bityutskiy wrote:
> On Wed, 2013-05-22 at 10:43 +0100, Matt Fleming wrote:
> > From: Matt Fleming <matt.fleming@...el.com>
> > 
> > pcibios_add_device() assumes that the physical addresses stored in
> > setup_data are accessible via the direct kernel mapping, and that
> > calling phys_to_virt() is valid. This isn't guaranteed to be true on x86
> > where the direct mapping range is much smaller than on x86-64.
> > 
> > Calling phys_to_virt() on a highmem address results in the following,
> 
> Fixes paging request oops for me as well, thanks! Would you please add a
> -stable tag to this patch?

Oh, pardon, you did CC -stable.

-- 
Best Regards,
Artem Bityutskiy
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