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[Xen-devel] Re: 3.0.2-testing: pci_set_dma_mask, pci_set_consistent_dma_mask(pci, 0x0fffffff) returns < 0 (ICE1712)

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "Molle Bestefich" <molle.bestefich@xxxxxxxxx>
  • Date: Fri, 14 Apr 2006 09:53:56 +0200
  • Delivery-date: Fri, 14 Apr 2006 00:54:15 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Keir Fraser wrote:
> Is there a VM interface to allow you to say 'please terminate usage of
> *that* page'? That could be extremely useful!

Could it?
Such an interface sounds extremely prone to race conditions to my ear.

(I know you're a much smart man than I, so I'm almost certain that my
perception of a race problem is wrong.  I'm just asking because I'm
curious - sorry :-).)

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