From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bruce Edge Subject: Re: dom0 hangs in xen 4.0.1-rc3-pre Date: Mon, 27 Sep 2010 07:06:26 -0700 Message-ID: References: <4C9DE72E.1000006@hfp.de> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0643218303==" Return-path: In-Reply-To: <4C9DE72E.1000006@hfp.de> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-users-bounces@lists.xensource.com Errors-To: xen-users-bounces@lists.xensource.com To: Andreas Kinzler Cc: xen-devel@lists.xensource.com, xen-users@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --===============0643218303== Content-Type: multipart/alternative; boundary=0016e6d975c7f9876a04913e3b67 --0016e6d975c7f9876a04913e3b67 Content-Type: text/plain; charset=ISO-8859-1 On Sat, Sep 25, 2010 at 5:12 AM, Andreas Kinzler wrote: > 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. > Andreas, Does this affect all Nehalem chips or only the Lynnfields? The .21 kernel is causing grief for us too. I was wondering if this was related. -Bruce > > Regards Andreas > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > --0016e6d975c7f9876a04913e3b67 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On Sat, Sep 25, 2010 at 5:12 AM, Andreas Kin= zler <ml-xen-us= ers@hfp.de> wrote:
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.

Andreas,

Does thi= s affect all Nehalem chips or only the=A0Lynnfields? The .21 kernel is caus= ing grief for us too. =A0I was wondering if this was related.
-Bruce

Regards Andreas


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