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[Xen-devel] cannot access memory beyond end of bootstrap direct-map area


  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Pascal Bouchareine <pascal@xxxxxxxxx>
  • Date: Thu, 27 Aug 2009 19:28:17 +0200
  • Delivery-date: Thu, 27 Aug 2009 10:28:34 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi,

Investigating the above message during xen 3.3 boot, found we left
a wrong assumption [modules_length == (mod[n].end - mod[0].start)]
in move_memory call, leading to an access above BOOTSTRAP_DIRECTMAP_END
and this panic on x86_32.

In my understanding Keir's patch 18630 was fixing this kind of problem
and I'm wondering why this move_memory call didn't go away with it ?

If this were ok, attached patch fixes the panic on my system.

Cheers,
Pascal

-- 
\o/   Pascal Bouchareine - Gandi 
 g    0170393757           15, place de la Nation - 75011 Paris      

Attachment: xen-setup-remap-modules.patch
Description: Text Data

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