RE: [Xen-ia64-devel] crash while initializing balloon driver

On Fri, 2007-01-05 at 12:59 +0800, Zhang, Jingke wrote:
> Hi Alex,
>     As you said, I use " hg export 13117 | patch -p1 -R " in the
> Cset#13122. Without 13117's patch, dom0 can boot up (Mem=1024M).

  Great.  I think the proper fix is something like this:

diff -r 0f571adbd700 xen/arch/ia64/xen/dom_fw.c
--- a/xen/arch/ia64/xen/dom_fw.c        Thu Jan 04 16:25:14 2007 -0700
+++ b/xen/arch/ia64/xen/dom_fw.c        Thu Jan 04 22:15:39 2007 -0700
@@ -549,7 +549,8 @@ complete_dom0_memmap(struct domain *d,
                        flags = ASSIGN_writable;        /* dummy - zero */
                        if (md->attribute & EFI_MEMORY_WP)
                                flags |= ASSIGN_readonly;
-                       if (md->attribute & EFI_MEMORY_UC)
+                       if (md->attribute & EFI_MEMORY_UC &&
+                           !(md->attribute & EFI_MEMORY_WB))
                                flags |= ASSIGN_nocache;
 
                        assign_domain_mach_page(d, start, size, flags);

Could you please test that this fixes the problem?  You'll need to need
to undo reverting 13117 before applying this patch (hg revert).  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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