[Xen-devel] Re: [PATCH] mem_sharing: fix race condition of nominate and unshare

[Tim Deegan <Tim.Deegan@xxxxxxxxxx>]

At 12:39 +0000 on 12 Jan (1294835994), MaoXiaoyun wrote:
> Hi Tim:
> 
>       Seems not work. See log below.
>       Since the patch is for xen_unstable, I need to merge the code manually, 
> I will check my code carefully later.
> 

I think you need this change as well:

diff -r d8eef6e395a8 xen/arch/x86/mm.c
--- a/xen/arch/x86/mm.c Wed Jan 12 10:51:38 2011 +0000
+++ b/xen/arch/x86/mm.c Wed Jan 12 14:01:11 2011 +0000
@@ -2367,7 +2367,7 @@ static int __get_page_type(struct page_i
 
                 /* No special validation needed for writable pages. */
                 /* Page tables and GDT/LDT need to be scanned for validity. */
-                if ( type == PGT_writable_page )
+                if ( type == PGT_writable_page || type == PGT_shared_page )
                     nx |= PGT_validated;
             }
         }


Cheers,

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel