virt March 2018

virt@lists.centos.org

7 participants
7 discussions

ovirt-engine package for oVirt 4.1.x
by C. L. Martinez 16 May '18

16 May '18

Hi all, I am trying to install oVirt 4.1.x from centos repos but it seems ovirt-engine doesn't exists. But instead, ovirt-hosted-engine-setup exists? Is ovirt-engine package removed? In official oVirt repos, exists. Thanks.

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Xen 4.6.6-9 (with XPTI meltdown mitigation) packages making their way to centos-virt-xen-testing
by George Dunlap 04 May '18

04 May '18

I've built & tagged packages for CentOS 6 and 7 4.6.6-9, with XPTI "stage 1" Meltdown mitigation. This will allow 64-bit PV guests to run safely (with a few caveats), but incurs a fairly significant slowdown for 64-bit PV guests on Intel boxes (including domain 0). If you prefer using Vixen / Comet, you can turn it off by adding 'xpti=0' to your Xen command-line. Detailed information can be found in the XSA-254 advisory: https://xenbits.xen.org/xsa/advisory-254.html Please test and report any issues you have. I'll probably tag then with -release tomorrow. 4.8 packages should be coming to buildlogs soon. -George

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Contributing Hyper-V/Azure packages
by Stephen Zarkos 24 Apr '18

24 Apr '18

Hi All, I'm interested in contributing to Virt-SIG with packages focused on Hyper-V/Azure support, i.e. kernel packages with additional patches and build configurations tuned for Hyper-V. There are some advantages these packages can bring to CentOS users - - Access to the latest features and fixes - Reduced boot time - Smaller memory footprint Of course all the new features/fixes are already upstream in the mainline kernel, but the aim here would be to backport them for easy consumption. Any questions about this sort of contribution? I'd love to see this happen. Thanks! Steve

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Issues with live KVM migration
by Daznis 09 Mar '18

09 Mar '18

Hello, I have been trying to livemigrate one of our KVM machines that has a local storage device, but it's failing. With error: error: internal error: unable to execute QEMU command 'migrate': this feature or command is not currently supported . After a bit of indepths look. I found out that local disk migration is not enabled with qemu-kvm-ev package. I have also tried to save a bit on downtime by creating a disk snapshot and just copy it over to new node, but live disk snapshots are also disabled. virsh snapshot-create vrt1-int-fr --disk-only --atomic error: Operation not supported: live disk snapshot not supported with this QEMU binary

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qemu-kvm-ev-2.9.0-16.el7_4.14.1 has been released
by Sandro Bonazzola 09 Mar '18

09 Mar '18

Hi, qemu-kvm-ev-2.9.0-16.el7_4.14.1 <http://cbs.centos.org/koji/buildinfo?buildID=22232> has been tagged for release and should land on mirrors.centos.org on Monday, March 12th 2018. Here's the ChangeLog: * Thu Mar 08 2018 Sandro Bonazzola <sbonazzo(a)redhat.com> - ev-2.9.0-16.el7_4.14.1 - Removing RH branding from package name * Thu Jan 18 2018 Miroslav Rezanina <mrezanin(a)redhat.com> - rhev-2.9.0-16.el7_4.14 - kvm-fw_cfg-fix-memory-corruption-when-all-fw_cfg-slots-a.patch [bz#1534649] - kvm-mirror-Fix-inconsistent-backing-AioContext-for-after.patch [bz#1535125] - Resolves: bz#1534649 (Qemu crashes when all fw_cfg slots are used [rhel-7.4.z]) - Resolves: bz#1535125 (Mirror jobs for drives with iothreads make QEMU to abort with "block.c:1895: bdrv_attach_child: Assertion `bdrv_get_aio_context(parent_bs) == bdrv_get_aio_context(child_bs)' failed." [rhel-7.4.z]) Regards, -- SANDRO BONAZZOLA ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D Red Hat EMEA <https://www.redhat.com/> <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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kernel 4.9.86-30 missing mpt2sas module
by T.Weyergraf 07 Mar '18

07 Mar '18

Hi I am attempting to setup Xen 4.10 with kernel 4.9.86-30 ( virt7-xen-410-testing, virt7-common-testing ) on CentOS7 After installing everything, the machine was unable to boot and hung in dracut stating it could not find its root device. The testsystem I use is a somewhat aged Dell M915 Blade (Quad opteron 61xx), using an MPT SAS controller for it's SAS boot drives. Stock CentOS 7 reports mpt2sas module being used to access the controller. That module is not present in the modules directory of the 4.9.86: 4.9.86-30: # pwd /lib/modules/4.9.86-30.el7.x86_64 # find . -name "*mpt2*" -print # stock 3.10.0-693: # pwd /lib/modules/3.10.0-693.el7.x86_64 # find . -name "*mpt2*" -print ./kernel/drivers/scsi/mpt3sas/mpt2sas.ko.xz The fun part is, that according to the shipped config, it should be there: # grep MPT2 /boot/config-4.9.86-30.el7.x86_64 CONFIG_SCSI_MPT2SAS_MAX_SGE=128 CONFIG_SCSI_MPT2SAS=m Any idea, what happened? I will try myself to build a new kernel from the corresponding source package to check, what went wrong. As a side note: anyone here, who tried that combo? I know, it's somewhat cutting edge, but as I am finally looking into some sort of modern Xen4CentOS setup to replace our aged setup in our infrastructure, i thought i'd rather settle with something as new as possible to avoid running into "not supported anymore soon" issues. Check hypervisor support matrix on frontpage https://xenproject.org/ Regards Thomas Weyergraf

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qemu-guest-agent doesnt start
by Aleksey Kashin 01 Mar '18

01 Mar '18

Hello, I need to communicate with windows 10 guest from cent os host. Following this docs - https://access.redhat.com/solutions/732773, https://wiki.libvirt.org/page/Qemu_guest_agent I add new device in my Win10 guest <channel type='unix'> <target type='virtio' name='org.qemu.guest_agent.0'/> </channel> and install gemu-ga x64 from this iso - https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-vi… After that I install gemu-guest-agent on cent os host and try to start service but with no success [root@kvm ~]# service qemu-guest-agent start Redirecting to /bin/systemctl start qemu-guest-agent.service A dependency job for qemu-guest-agent.service failed. See 'journalctl -xe' for details. [root@kvm ~]# journalctl -xe мар 01 15:41:03 kvm.office systemd[1]: Job dev-virtio\x2dports-org.qemu.guest_agent.0.device/start timed out. мар 01 15:41:03 kvm.office systemd[1]: Timed out waiting for device dev-virtio\x2dports-org.qemu.guest_agent.0.device. -- Subject: Unit dev-virtio\x2dports-org.qemu.guest_agent.0.device has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit dev-virtio\x2dports-org.qemu.guest_agent.0.device has failed. -- -- The result is timeout. мар 01 15:41:03 kvm.office systemd[1]: Dependency failed for QEMU Guest Agent. -- Subject: Unit qemu-guest-agent.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit qemu-guest-agent.service has failed. -- -- The result is dependency. мар 01 15:41:03 kvm.office systemd[1]: Job qemu-guest-agent.service/start failed with result 'dependency'. мар 01 15:41:03 kvm.office systemd[1]: Job dev-virtio\x2dports-org.qemu.guest_agent.0.device/start failed with result 'timeout'. мар 01 15:41:03 kvm.office polkitd[1376]: Unregistered Authentication Agent for unix-process:27927:138320296 (system bus name :1.885, object path /org/freedesktop/PolicyKit1/AuthenticationAg Also I tried to start qemu-ga wrapped by strace [root@kvm ~]# source /etc/sysconfig/qemu-ga [root@kvm ~]# strace /usr/bin/qemu-ga \ > --method=virtio-serial \ > --path=/dev/virtio-ports/org.qemu.guest_agent.0 \ > --blacklist=${BLACKLIST_RPC} \ > -F${FSFREEZE_HOOK_PATHNAME} <skipped> open("/dev/virtio-ports/org.qemu.guest_agent.0", O_RDWR|O_NONBLOCK|O_ASYNC|O_CLOEXEC) = -1 ENOENT (No such file or directory) write(2, "1519901353.794545: critical: err"..., 781519901353.794545: critical: error opening channel: No such file or directory ) = 78 write(2, "1519901353.794659: critical: err"..., 511519901353.794659: critical: error opening channel ) = 51 write(2, "1519901353.794742: critical: fai"..., 661519901353.794742: critical: failed to create guest agent channel ) = 66 write(2, "1519901353.794818: critical: fai"..., 701519901353.794818: critical: failed to initialize guest agent channel ) = 70 exit_group(1) = ? +++ exited with 1 +++ [root@kvm ~]# ls -l /dev/virtio-ports/* ls: cannot access /dev/virtio-ports/*: No such file or directory Anybody help me? Centos 7.2 [root@kvm ~]# cat /etc/centos-release CentOS Linux release 7.2.1511 (Core) [root@kvm ~]# uname -r 3.10.0-327.el7.x86_64 Qemu-guest-agent v2.8 [root@kvm ~]# rpm -qa | grep qemu-guest qemu-guest-agent-2.8.0-2.el7.x86_64 Other packages [root@kvm systemd]# rpm -qa | egrep -i 'qemu|kvm|libvirt' libvirt-client-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.7.x86_64 libvirt-3.2.0-14.el7_4.7.x86_64 centos-release-qemu-ev-1.0-2.el7.noarch qemu-kvm-common-ev-2.9.0-16.el7_4.13.1.x86_64 libvirt-daemon-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-lxc-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-3.2.0-14.el7_4.7.x86_64 qemu-img-ev-2.9.0-16.el7_4.13.1.x86_64 libvirt-libs-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-config-network-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-interface-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-qemu-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-gluster-3.2.0-14.el7_4.7.x86_64 ipxe-roms-qemu-20170123-1.git4e85b27.el7_4.1.noarch qemu-kvm-ev-2.9.0-16.el7_4.13.1.x86_64 libvirt-python-3.2.0-3.el7_4.1.x86_64 libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-secret-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-network-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.7.x86_64 libvirt-daemon-driver-storage-rbd-3.2.0-14.el7_4.7.x86_64 qemu-guest-agent-2.8.0-2.el7.x86_64 libvirt-glib-1.0.0-1.el7.x86_64 Thank you! -- Best regards

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virt March 2018