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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Brian Jackson <iggy@theiggy.com>
Cc: kvm@vger.kernel.org
Subject: Re: vhost_net_init returned -7
Date: Sat, 29 Aug 2009 23:47:19 +0300	[thread overview]
Message-ID: <20090829204719.GA31449@redhat.com> (raw)
In-Reply-To: <200908281510.43523.iggy@theiggy.com>

On Fri, Aug 28, 2009 at 03:10:43PM -0500, Brian Jackson wrote:
> I'm trying to tinker with vhost_net. I have a 2.6.31-rc4 host kernel patched 
> to support vhost_net (v5) (along with ksm if it matters). The guest is a 
> debian-5.0.2 (2.6.26) install CD for now. When the guest tries to load the 
> virtio-net drivers, kvm closes and prints "vhost_net_init returned -7". KVM is 
> patched with your patches from 20090817.
> 
> I tried looking through the code but without adding some other debug code, 
> it's not obvious where exactly it's failing. Was going to see if anyone (I 
> know, not a lot of users yet) had any ideas before I dig too deep.
> 
> --Iggy

What I think you miss is eventfd support from kvm module in kernel.
Patches for this are in Avi's kvm.git tree:
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm.git

-- 
MST

  reply	other threads:[~2009-08-29 20:48 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-28 20:10 vhost_net_init returned -7 Brian Jackson
2009-08-29 20:47 ` Michael S. Tsirkin [this message]
2009-08-29 21:01 ` Michael S. Tsirkin
2009-08-29 21:38   ` Brian Jackson
2009-08-30  5:12     ` Michael S. Tsirkin
2009-08-31 17:33       ` Avi Kivity
2009-09-07  8:59         ` Dor Laor

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