This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-users] pci-passthrough in pvops causing offline raid

To: xen-devel@xxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] pci-passthrough in pvops causing offline raid
From: Mark Adams <mark@xxxxxxxxxxxxxxxxxx>
Date: Thu, 11 Nov 2010 10:24:17 +0000
Delivery-date: Thu, 11 Nov 2010 02:25:38 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.18 (2008-05-17)
Hi All,

Running xen 4.0.1-rc6, debian squeeze 2.6.32-21.

In a voip setup, where I have forwarded the onboard NIC interfaces
through to domU using the following grub config:

module  /vmlinuz-2.6.32-5-xen-amd64 placeholder 
root=UUID=25c3ac79-6850-498d-afcf-ea42970e94fd ro  quiet xen-pciback.permissive 
xen-pciback.hide=(02:00.0)(03:00.0) pci=resource_alignment=02:00.0;03:00.0

I'm having a serious issue where the raid card goes offline after an
indefinate period of time. Sometimes runs fine for a week, other times 1
day before I get "offline device" errors. Rebooting the machine fixes it
straight away, and everything is back online.

What in the Xen pciback is causing the raid card to go offline? The
only devices hidden are the 2 onboard NIC's.

I know that this issue is with Xen, as I had this running on a different
server (same xen setup) and it had the same issues, which I initially
thought were to do with the raid card.

Is there known issues in this kernel and xen version with pciback? I'm
going to update to the current package versions this evening (4.0.1-1
and 2.6.32-27) however would appreciate if anyone has any other insight
into this issue, or even just a note to say it is a bug that has been
fixed in current versions!


Xen-users mailing list