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Re: [Xen-devel] BUG at xen/include/asm/shadow2.h: 409


  • To: Gerd Hoffmann <kraxel@xxxxxxx>, Xen devel list <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Mon, 21 Aug 2006 13:36:18 +0100
  • Delivery-date: Mon, 21 Aug 2006 05:36:38 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcbFHmYkpIeuFDEREduVWAAKle7CWA==
  • Thread-topic: [Xen-devel] BUG at xen/include/asm/shadow2.h: 409



On 21/8/06 1:08 pm, "Gerd Hoffmann" <kraxel@xxxxxxx> wrote:

> $subject says all, full log attached.
> 
> This is while playing with kexec where domU switches from one
> self-consistent page table tree to a new self-consistent page table
> tree, but the new page table tree does NOT map the old page table pages
> read-only (and visa-versa).  In that (rare) case the verification of the
> new page table tree happens with the idle page tables active.

shadow2 guys added a bogus assertion to the update_cr3() function. Now
removed.

 -- Keir



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