Re: [Xen-devel] RE: hypervisor crash in map_vtd_domain_page

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2011-01-17 at 09:23 +0000, Ian Campbell wrote:
> On Fri, 2011-01-14 at 08:57 +0000, Ian Campbell wrote: 
> > On Thu, 2011-01-13 at 18:38 +0000, Kay, Allen M wrote:
> > > Ian/Keir,
> > > 
> > > The attached patch should fix the crash issue.  Somehow the check for 
> > > !iommu_hap_pt_share in function iommu_set_pgd() got dropped in changeset 
> > > 22692.
> > > 
> > > Signed-off-by: Allen Kay <allen.m.kay@xxxxxxxxx>
> > 
> > Works for me. Thanks.
> 
> However I'm now seeing this when passing through devices to a HVM guest
> with a stub domain.

This turned out to be nothing to do with passthrough/iommu etc.

Patch posted as "xen: fix XEN_DOMCTL_memory_mapping to not return with
domain RCU lock held"

Ian.


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