From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= Subject: Latest pvops dom0 kernel and missing /dev/xen/evtchn, xenstored and xend not starting Date: Sat, 19 Jun 2010 15:32:36 +0300 Message-ID: <20100619123236.GD17817@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com Cc: Jeremy Fitzhardinge List-Id: xen-devel@lists.xenproject.org Hello, I know there has been some discussion about this already, but I just noticed it myself when I upgraded my testbox. So, I have Xen 4.0.0, and the latest xen/stable-2.6.32.x dom0 kernel, ie. 2.6.32.15. On system startup I notice xenstored and xend fail to start. I look around and notice /dev/xen/ is empty. I do "rmmod xen-evtchn" and "modprobe xen-evtchn" and then I have: # ls -la /dev/xen total 0 drwxr-xr-x 2 root root 60 Jun 19 15:22 . drwxr-xr-x 20 root root 4580 Jun 19 15:20 .. crw-rw---- 1 root root 10, 58 Jun 19 15:22 evtchn Based on some earlier emails it has wrong major/minor? Also "modprobe xen-gntdev" gives this: # ls -la /dev/xen total 0 0 crw-rw---- 1 root root 10, 58 Jun 19 15:22 evtchn 0 crw-rw---- 1 root root 10, 57 Jun 19 15:25 gntdev So what's the actual problem here? I guess something got changed in the kernel, and now xen tools/scripts should create the devnodes with a different major/minor? Is the correct fix to upgrade Xen to 4.0.1-rcX ? I just want to get this correct so I can update the wiki pages.. it seems many people hit this problem. Thanks! -- Pasi