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RE: [Xen-devel] Net grant tables breaking multiple nic domU


  • To: "Nivedita Singhvi" <niv@xxxxxxxxxx>, "Jerone Young" <jyoung5@xxxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Wed, 14 Sep 2005 13:03:54 +0100
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Wed, 14 Sep 2005 12:02:35 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcW4px1UTsU8aQDXQ3WD+DJl9aCimwAdJKiQ
  • Thread-topic: [Xen-devel] Net grant tables breaking multiple nic domU

> The cause he identified is in the net grant code, so there is 
> no conflict here, is there?  When you disable the net grant 
> code, it doesn't use net grant tables, but falls back to the 
> earlier code, which doesn't have the bug. Yes, we could 
> disable the net grant stuff, but as we discussed in previous 
> threads on this list, that is a temporary workaround, and 
> since this is the code we want to ship in 3.0, I see the 
> correct thing to do is to find and fix the real problem, 
> which Jim is doing.

Yep, its just a case of dynamically allocating more grant table slots
when an interface is brought up. The current BUG failure is needlessly
severe. 

Ian

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