From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peri Hankey Subject: Re: A snapshot is not (really) a cow Date: Mon, 27 Sep 2004 08:57:39 +0100 Sender: xen-devel-admin@lists.sourceforge.net Message-ID: <4157C7F3.3090200@thegreen.co.uk> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Ian Pratt Cc: Christian Limpach , xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org I rebuilt with todays xen-2.0-src: ... untar and rename todays download ... make mrproper make world su make install reboot The first few lines in /var/log/messages show that something is immediately trying to use nbd devices, way before any service in /etc/init.d/ can get a sniff at it. I think nbd used to be a module the xen0 config, but I see it's now compiled into the kernel - could there be a device number confusion somewhere? According to devices.txt network block devices have block major 43. ---- start of boot sequence in /var/log/messages ---- ---- I don't know where 'or 0' comes from ------------ Sep 27 08:23:29 a4 syslogd 1.4.1: restart. Sep 27 08:23:29 a4 kernel: klogd 1.4.1, log source = /proc/kmsg started. Sep 27 08:23:29 a4 kernel: Inspecting /boot/System.map-2.6.8.1-xen0 Sep 27 08:23:29 a4 partmon: Checking if partitions have enough free diskspace: Sep 27 08:23:30 a4 kernel: Loaded 19997 symbols from /boot/System.map-2.6.8.1-xen0. Sep 27 08:23:30 a4 kernel: Symbols match kernel version 2.6.8. Sep 27 08:23:30 a4 kernel: No module symbols loaded - kernel modules not enabled. Sep 27 08:23:30 a4 kernel: or 0 Sep 27 08:23:30 a4 kernel: nbd60: Request when not-ready Sep 27 08:23:30 a4 kernel: end_request: I/O error, dev nbd60, sector 0 Sep 27 08:23:30 a4 kernel: nbd61: Request when not-ready Sep 27 08:23:30 a4 kernel: end_request: I/O error, dev nbd61, sector 0 ... ------------------------------------------------------------------------------------ Thanks Peri Ian Pratt wrote: >>I'm not aware of anything that is trying to use NBD - I did experiment a >>bit a while back, but didn't get anywhere. I thought xen might be using >>it behind the scenes in some way. >> >> > >Xen doesn't use nbd. I bet you have something in >/etc/rc.d/init.d that is starting nbd. > >Ian > > >------------------------------------------------------- >This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 >Project Admins to receive an Apple iPod Mini FREE for your judgement on >who ports your project to Linux PPC the best. Sponsored by IBM. >Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php >_______________________________________________ >Xen-devel mailing list >Xen-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/xen-devel > > > > ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php