From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: some errors of pvonhvm : xen-blkfront Date: Thu, 14 Apr 2011 08:56:31 -0400 Message-ID: <20110414125630.GA5548@dumpdata.com> References: <66684b04.29ba.12f4cc06df5.Coremail.topperxin@126.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <66684b04.29ba.12f4cc06df5.Coremail.topperxin@126.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: topperxin Cc: xen-devel@lists.xensource.com, "xen.org" List-Id: xen-devel@lists.xenproject.org On Wed, Apr 13, 2011 at 10:46:10AM +0800, topperxin wrote: > hi all, > I have just ported the pvovhvm drivers to ubuntu 10.10 ,the domU = can boot successfully, but when the domU running, intermittence=EF=BC=8C= the system will give me such warnings: > INFO: task login:1073 blocked for more than 120 seconds. > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this = message. > INFO: task flush-202:0:457 blocked for more than 120seconds. > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this = message. > INFO: task jbd2/sda1-8:422 blocked for more than 120 seconds. > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this messag= e. > =20 > what's wrong with the domU? is it means there are some errors in > xen-blkfront? how should I debug this error??? Enable the verbose output (DPRINTK) and see what the data stream has. Wha= t kernel version is 10.10?=20