Thanks for pointing me to xm dmesg. That was the missing part. The server has one of the AMD CPUs affected by this: http://lists.xen.org/archives/html/xen-announce/2012-06/msg00002.html So we had to add allow_unsafe to the boot line. Now Xen works fine. Best regards, Jens Pelzetter Am 28.01.2014 14:41, schrieb Stefano Stabellini: > On Tue, 28 Jan 2014, Jens Pelzetter wrote: >> Hello, >> >> we have a strange problem on a fresh install of CentOS 6.5. On the >> server we want to use Xen to host paravirtualised guests (the system has >> no hardware virtualization support). To manage the domain we would like >> to use libvirt. Xen and libvirt are set up as described here: >> >> http://wiki.centos.org/HowTos/Xen/Xen4QuickStart >> http://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt >> >> When we try to create a new domain this does not work. In >> /var/log/xen/xend.log we have to the following error: > > Could you please post the output of xm dmesg? > > >> [2014-01-28 10:23:02 1651] DEBUG (XendDomainInfo:103) >> XendDomainInfo.create(['vm', ['name', 'ccm'], ['memory', '1024'], >> ['maxmem', '1024'], ['vcpus', '1'], ['uuid', >> 'be62b0d3-4911-137f-210f-9b0948828106'], ['bootloader', >> '/usr/bin/pygrub'], ['on_poweroff', 'destroy'], ['on_reboot', >> 'restart'], ['on_crash', 'restart'], ['image', ['linux', ['localtime', >> '0']]], ['localtime', '0'], ['device', ['vbd', ['dev', 'xvda'], >> ['uname', 'phy:/dev/medusa-vm/ccm'], ['mode', 'w']]], ['device', ['vif', >> ['mac', '00:16:3e:1c:ee:5b'], ['bridge', 'br0'], ['script', >> 'vif-bridge'], ['model', 'virtio']]]]) >> [2014-01-28 10:23:02 1651] DEBUG (XendDomainInfo:2499) >> XendDomainInfo.constructDomain >> [2014-01-28 10:23:02 1651] DEBUG (balloon:187) Balloon: 26832188 KiB >> free; need 16384; done. >> [2014-01-28 10:23:02 1651] ERROR (XendDomainInfo:2561) (1, 'Operation >> not permitted') >> Traceback (most recent call last): >> File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", >> line 2556, in _constructDomain >> target = self.info.target()) >> Error: (1, 'Operation not permitted') > > Are xend and libvirt running as root? Do you have SELinux enabled? > _______________________________________________ > CentOS-virt mailing list > CentOS-virt@xxxxxxxxxx > http://lists.centos.org/mailman/listinfo/centos-virt > _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos-virt
