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Re: [Xen-devel] [PV] PCI passthrough and interrupt sharing


  • To: Thomas Friebel <thomas.friebel@xxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxxxxxxxx>
  • Date: Thu, 24 May 2007 09:40:29 +0100
  • Delivery-date: Thu, 24 May 2007 01:38:54 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Aced3y6xbPRC3wnSEdyL+wAX8io7RQ==
  • Thread-topic: [Xen-devel] [PV] PCI passthrough and interrupt sharing

On 23/5/07 15:49, "Thomas Friebel" <thomas.friebel@xxxxxxx> wrote:

> When the guest NIC's IRQ is not shared with another device, everything
> works fine. When both NICs share the same IRQ, sooner or later host and
> guest networking both hang.
> 
> Is this a known issue or is it supposed to work correctly?

It's supposed to work but there have been enough complaints about this
scenario that I'm sure there must be a bug somewhere. I haven't tried to
reproduce this problem as yet.

 -- Keir


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