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Re: [Xen-devel] page ref/type count overflows


  • To: Jan Beulich <jbeulich@xxxxxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Mon, 26 Jan 2009 14:19:09 +0000
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 26 Jan 2009 06:19:29 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acl/wQ2UEtghHvDiCk+SyQkQ4+h76A==
  • Thread-topic: [Xen-devel] page ref/type count overflows

On 26/01/2009 14:10, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> But (just having got your second response) if we can do without that ugly
> cmpxchg8b altogether, then of course this is the much preferred solution.
> The growing of struct page_info of course isn't very fortunate, but pretty
> much unavoidable.

I'm having at the cmpxchg8b right now. I'll also widen the fields I guess,
since that's pretty easy.

 -- Keir



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