Re: [Xen-devel] [PATCH] iomem: Prevent Dom0 pci bus from allocating RAM as I/O space

[Fengzhe Zhang <fengzhe.zhang@xxxxxxxxx>]

On 2011/2/18 23:16, Konrad Rzeszutek Wilk wrote:
> On Thu, Feb 17, 2011 at 01:32:15PM +0800, Fengzhe Zhang wrote:
> > On 2011/2/16 23:47, Konrad Rzeszutek Wilk wrote:
> > > On Wed, Feb 16, 2011 at 10:20:21AM -0500, Konrad Rzeszutek Wilk wrote:
> > > > On Wed, Feb 16, 2011 at 10:06:38AM -0500, Konrad Rzeszutek Wilk wrote:
> > > > > On Wed, Feb 16, 2011 at 10:26:20PM +0800, Zhang, Fengzhe wrote:
> > > > > > iomem: Prevent Dom0 pci bus from allocating RAM as I/O space
> > > > > Is there a bug # associated with this? Is this associated with the intel-agp
> > > > > driver trying to ioremap the scratch page and bombing out?
> > > Also did you try to revert 0b56d9994ebe34df77fa156d2068ad93b7877b44 and see
> > > how that works? Here is the revert attached
> > I tried this patch and it can indeed avoid system crash.
> What happens if you use the revert _and_ don't use dom0_mem? Does
> the machine not crash on the igb?
If dom0_mem is not used, no visible system error is observed even 
without the revert.
-Fengzhe


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