From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Subject: Re: PCI-Passthrough: VF ends up with no IRQ assigned on the physical machine Date: Tue, 27 Mar 2012 07:57:20 -0600 Message-ID: <1332856640.29722.72.camel@bling.home> References: <1332801483.29722.70.camel@bling.home> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Alexander Lyakas Return-path: Received: from mx1.redhat.com ([209.132.183.28]:8689 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754500Ab2C0N5V (ORCPT ); Tue, 27 Mar 2012 09:57:21 -0400 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On Tue, 2012-03-27 at 13:01 +0200, Alexander Lyakas wrote: > Hi Alex, > chances are not too high, but I can try. > Should I try version 0.15.1? Will it be compatible with my kernel > (2.6.38-8)? Or should I also take 'kvm-kmod' or 'kvm'? Not new enough, try qemu-kvm.git. It should be compatible with your kernel. Thanks, Alex > On Tue, Mar 27, 2012 at 12:38 AM, Alex Williamson > wrote: > > On Mon, 2012-03-26 at 18:34 +0200, Alexander Lyakas wrote: > >> Greetings everybody, > >> I am running stock ubuntu-natty 2.6.38-8, with KVM 0.14.0 and libvirt > > > > Any chance you can try upstream qemu-kvm? Interrupts, including msi-x > > have been given an overhaul recently. Thanks, > > > > Alex > > > >> 0.8.8. I am using Intel 82599EB dual-port 10Gb NIC with VFs spawned by > >> each one of the PFs. Those VFs are further assigned to KVM instances > >> with PCI-passthrough using libvirt. Each instance receives 4 VFs (two > >> VFs from each PF). > >> Usually when KVM starts, messages like these appear in the kernel log > >> of the physical machine: > >> syslog.ubuntu-sata-51 146907 Mar 25 18:19:51 ubuntu-sata-51 kernel: > >> [51267.029108] pci-stub 0000:03:13.1: claimed by stub > >> syslog.ubuntu-sata-51 146908 Mar 25 18:19:51 ubuntu-sata-51 kernel: > > ... > >