From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cole Robinson Subject: Re: Fail to attach CDWriter Date: Mon, 22 Feb 2010 10:59:14 -0500 Message-ID: <4B82A9D2.8060202@redhat.com> References: <20100219160711.6resswdvmsc4g440@oswebmail1.pacific.net.hk> <4B7E5E28.7030603@siriusit.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: satimis@pacific.net.hk, kvm@vger.kernel.org To: Mark Cave-Ayland Return-path: Received: from mx1.redhat.com ([209.132.183.28]:48826 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752333Ab0BVP7U (ORCPT ); Mon, 22 Feb 2010 10:59:20 -0500 In-Reply-To: <4B7E5E28.7030603@siriusit.co.uk> Sender: kvm-owner@vger.kernel.org List-ID: On 02/19/2010 04:47 AM, Mark Cave-Ayland wrote: > satimis@pacific.net.hk wrote: > >> Hi folks >> >> >> KVM >> Host - Fedora 12 64bit >> VM (guest) - Windows Server 2008 64bit >> >> >> Fail to attach CDWriter. >> >> >> $ sudo virsh -c qemu:///system start vm06_wser08 >> Domain vm06_wser08 started >> >> >> $ cat VM/DEV/cd.xml >> >> >> >> >> >> >> >> $ sudo virsh attach-device vm06_wser08 VM/DEV/cd.xml >> error: Failed to attach device from VM/DEV/cd.xml >> error: server closed connection >> >> >> $ sudo tail /var/log/messages >> Feb 19 15:45:36 localhost kernel: br0: port 2(vnet0) entering forwarding >> state >> Feb 19 15:48:31 localhost libvirtd: 15:48:31.574: error : >> qemudDomainChangeEjectableMedia:5186 : internal error No device with bus >> 'ide' and target 'hdc' >> Feb 19 15:48:31 localhost kernel: libvirtd[1738]: segfault at 70 ip >> 00000000004367e2 sp 00007f210acfc8f0 error 4 in libvirtd[400000+7f000] >> Feb 19 15:48:31 localhost abrtd: Directory 'ccpp-1266565711-1639' >> creation detected >> Feb 19 15:48:31 localhost abrtd: Lock file >> '/var/cache/abrt/ccpp-1266565711-1639.lock' is locked by process 21223 >> Feb 19 15:48:32 localhost abrtd: Lock file >> '/var/cache/abrt/ccpp-1266565711-1639.lock' is locked by process 21223 >> Feb 19 15:48:33 localhost abrt[21223]: saved core dump of pid 1639 >> (/usr/sbin/libvirtd) to /var/cache/abrt/ccpp-1266565711-1639/coredump >> (60129280 bytes) >> Feb 19 15:48:33 localhost abrtd: Getting local universal unique >> identification... >> Feb 19 15:48:33 localhost abrtd: New crash, saving >> Feb 19 15:48:33 localhost abrtd: >> RunApp('/var/cache/abrt/ccpp-1266565711-1639','test x"`cat component`" = >> x"xorg-x11-server-Xorg" && cp /var/log/Xorg.0.log .') >> >> >> If I put following content on vm06_wser08 ; (cd.xml) >> >> >> >> >> >> >> >> Then it works. CDWriter can be attached to Vista. But I must insert >> the CD on the drive before starting vm06_wser08. Otherwises it complains. > > I second this bug report. Just yesterday I tried to attach a CDROM to an > already-running WinXP guest under qemu-0.12.1.2 with libvirt 0.7.5 using > virt-manager 0.8.2. virt-manager immediately dropped its connection and > refused to re-connect to the libvirtd socket. Futher investigation > showed that the libvirtd process had died. > > Restarting libvirtd, stopping the VM, attaching the CDROM again, and > then re-starting the VM from scratch made the CDROM visible within the > guest, suggesting there is something not quite right with the dynamic > device attachment mechanism in libvirt. > FYI, libvirt issues shouldn't be reported here: libvirt-list@redhat.com is better. I can't reproduce with libvirt 0.7.6. If either of you can still reproduce, can you run libvirtd under gdb, reproduce the crash, and report a backtrace? More info here: http://fedoraproject.org/wiki/StackTraces Thanks, Cole