From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Kinzler Subject: Re: dom0 hangs in xen 4.0.1-rc3-pre Date: Sat, 25 Sep 2010 14:12:30 +0200 Message-ID: <4C9DE72E.1000006@hfp.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-users-bounces@lists.xensource.com Errors-To: xen-users-bounces@lists.xensource.com To: Jia Rao Cc: xen-devel@lists.xensource.com, xen-users@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 24.09.2010 06:22, Jia Rao wrote: > I saw reproducible hangs in dom0 when the system is under heavy load. > four dom0s share a nfs server for domU images. a total number of 24 domUs (6 > domUs on each dom0). When the system under heavy load, busy processing > e-commerce requests, one or two of the dom0s hanged. no input can be > accepted and reboot is necessary. > Anyone had the same experience? The causes I can come up are following: Please post your hardware (mainboard, chipset, CPU, RAID controller). I have found a severe problem on Lynnfield systems. Regards Andreas