WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] Re: Xen paravirt frontend block hang

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: [Xen-devel] Re: Xen paravirt frontend block hang
From: "Christopher S. Aker" <caker@xxxxxxxxxxxx>
Date: Sat, 01 Mar 2008 19:43:04 -0500
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
Delivery-date: Sat, 01 Mar 2008 16:43:42 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <47C712EF.1060703@xxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <4772AC8E.7010007@xxxxxxxxxxxx> <47C712EF.1060703@xxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird 2.0.0.12 (Macintosh/20080213)
Jeremy Fitzhardinge wrote:
I've been running this all night without seeing any problem. I'm using current x86.git#testing with a few local patches, but nothing especially relevent-looking.

Meh .. what backend are you using? We're using LVM volumes exported directly into the domUs like so:

disk =[ 'phy:vg1/xencaker-56392,xvda,w', ... ]

Could you try the attached patch to see if it makes any difference?

Unfortunately we're still in the same place... pv_ops kernels are still hanging after heavy disk IO:

works - 2.6.18.x (from xen-unstable)
hangs - 2.6.25-rc3-git3
hangs - 2.6.25-rc3-git3 + your patch

Any other suggestions or debugging I can provide that would be useful to squash this?

-Chris


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>