From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: 2.6.32.27 dom0 + latest xen staging boot failure
Date: Fri, 28 Jan 2011 10:28:43 -0500
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To: "Kay, Allen M" <allen.m.kay@intel.com>
Cc: xen-devel <xen-devel@lists.xensource.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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On Thu, Jan 27, 2011 at 10:51:42AM -0800, Kay, Allen M wrote:
> Following are the brief error messages from the serial console log.  I have also attached the full serial console log and dom0 system map.
> 
> (XEN) mm.c:802:d0 Bad L1 flags 400000

On a second look, this is a different issue than I had encountered.

The 400000 translates to Xen thinking you had PAGE_GNTTAB set, but that
is not right. Googling for this shows that I had fixed this with a
Xorg server at some point, but I can't remember the details so that is not
that useful :-(

You said it works if you give the domain 1024MB, but I wonder if
it also works if you disable the IOMMU? What happens then?

> (XEN) mm.c:1204:d0 Failure in alloc_l1_table: entry 90
> (XEN) mm.c:2142:d0 Error while validating mfn 1d7e97 (pfn 3d69) for type 1000000
> 000000000: caf=8000000000000003 taf=1000000000000001
> (XEN) mm.c:2965:d0 Error while pinning mfn 1d7e97
> (XEN) traps.c:451:d0 Unhandled invalid opcode fault/trap [#6] on VCPU 0 [ec=0000
> ]
> (XEN) domain_crash_sync called from entry.S
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0: