- Users - libvirt List Archives

[libvirt-users] Installing virtio drivers on a windows guest
by Jeff Tchang 14 Apr '15

14 Apr '15

Just thought I would share my experience trying to get the virtio windows drivers loaded. I kept using the wrong ones and getting a blue screen until I realized I needed to use my distribution's virtio packages. Wrote up a quick article: http://www.returnbooleantrue.com/2015/04/making-your-windows-kvm-guest-boxe…

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[libvirt-users] Passing environment variables to LXC container
by Harish Vishwanath 13 Apr '15

13 Apr '15

Hello I am looking for options to pass some ENV variables to an LXC container managed by libvirt. Is it possible to do so from the XML file itself? Something along the lines of qemu command line options? Regards, Harish

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[libvirt-users] CPU Resource Reservation using KVM
by Jatin Davey 13 Apr '15

13 Apr '15

Hi All I am new to KVM world. I have been using VMware for about a year. In VMware world we can reserve cpu resources for a VM. Say for instance if we need 4 vCPUs with a total of 8000 GHz then we can mention this configuration in vCenter while creating a VM. This guarantees 8000 GHz of cpu resources for the deployed VM. How can i achieve the same thing using KVM ? Please provide as much details as possible. Any pointers for reading this would also be helpful. Appreciate your responses in this regard. Thanks Jatin

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[libvirt-users] issue on fedora21 with libvirt-1.2.13 and 1.2.14 - containers won't start at all
by Thierry Parmentelat 11 Apr '15

11 Apr '15

Answering my own question, seems like my problem is very similar to what is reported below for redhat enterprise linux 7 https://bugzilla.redhat.com/show_bug.cgi?id=1209757

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[libvirt-users] issue on fedora21 with libvirt-1.2.13 and 1.2.14 - containers won't start at all
by Thierry Parmentelat 11 Apr '15

11 Apr '15

Hi there I am using fedora21 for hosts and guests, using lxc containers, and was on vanilla 1.2.9 as exposed by the fedora yum repo The other day I was needing the ability to grant mknod capability to some guests, some chap on IRC kindly pointed me at the <capabilities> tag However I was told that needed 1.2.11 So I went and rebuilt from this download http://libvirt.org/sources/libvirt-1.2.14-1.fc21.src.rpm using plain rmbuild —rebuild Once I had upgraded my host with these new rpms it looked like everything was going fine, and my guests indeed were able to mknod However once I rebooted the host, virsh unpleasantly refused to start any of my containers, and complained like this after hanging for 5 to 10 seconds: 2015-04-11 07:44:10.295+0000: 37843: error : virLXCProcessStart:1263 : internal error: guest failed to start: libvirt: error : Failed to terminate process 37905 with SIGKILL: Device or resource busy — At that point I redid the same with 1.2.13, which gave me the same behaviour, and then 1.2.12 which seems to work for me right now — So it looks like 1.2.13 brings me a regression of some kind I am attaching the XML config for one sample domain, mostly they all look alike Should I file a bug report, and if so where should I do that ? thanks — root@buzzcocks ~ # virsh -c lxc:/// dumpxml testmaster setlocale: No such file or directory <domain type='lxc' id='1528'> <name>testmaster</name> <uuid>18989592-f964-4d51-90af-7ecf7719b758</uuid> <memory unit='KiB'>1048576</memory> <currentMemory unit='KiB'>1048576</currentMemory> <vcpu placement='auto'>1</vcpu> <numatune> <memory mode='strict' placement='auto'/> </numatune> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <features> <acpi/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/vservers/testmaster'/> <target dir='/'/> </filesystem> <interface type='bridge'> <mac address='52:54:00:ae:8b:47'/> <source bridge='br0'/> <target dev='viftestmaster'/> <guest dev='eth0'/> </interface> <console type='pty' tty='/dev/pts/0'> <source path='/dev/pts/0'/> <target type='lxc' port='0'/> <alias name='console0'/> </console> </devices> </domain>

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[libvirt-users] Detecting that the VM is snapshoting
by Joaquín Rinaudo 10 Apr '15

10 Apr '15

While taking or reverting a snapshot, using virsh --connect qemu:///system dominfo, the state of a VM is paused. Is there a way to distinguish this state (snapshotting) with virsh or any other tools? Joaquín

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[libvirt-users] LXC and syslog seperation (/dev/log)
by James Leu 10 Apr '15

10 Apr '15

Hello, I'm seeing syslog messages "bleed" from the host and other LXC into the messages, maillog, secure logs of other LXCs. I'm using libvirt 1.0.0 on a host with systemd and kernel 3.9.10. Each LXC is running an older non-systemd linux distribution Is this a known issue? Is there a work around? Thank you for you time, Jim -- James R. Leu | Director of Technology | INOC | Madison, WI, USA O: +1-608-204-0203 | F: +1-608-663-4558 | jleu(a)inoc.com | www.inoc.com Service. Not Software.®

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[libvirt-users] raw disks used by guest unavailable to host - retrieve them?
by lejeczek 10 Apr '15

10 Apr '15

hi everybody my guests had drives passed though, like here: <disk type='block' device='lun'> <driver name='qemu' type='raw' cache='none'/> <source dev='/dev/sdv'/> <target dev='sda' bus='scsi'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> guests were Windows 8/2012, now after de-defining guests those disks are still unavailable to host's lvm, pvscan doesn't see. Is there a way to fix it? bw. P

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[libvirt-users] How to get the real migrate speed (MB/s) in the libvirt.
by Edward Young 10 Apr '15

10 Apr '15

Hi all, I start to migrate a VM with its storage using "virsh migrate --live --copy-storage-all ..." command. I'm wondering whether we can get the migration report when the migration is done. For instance, how long it takes to migrate this VM, the total data transferred and etc.. Thanks! Ed

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[libvirt-users] Centos 7.1.1503 + libvirt 1.2.14 = broken direct network mode
by mxs kolo 09 Apr '15

09 Apr '15

Hi all. I use LXC on Centos 7 x86-64, with libvirt version 1.2.6 and 1.2.12 My container has bridged network: # virsh dumpxml test1 <domain type='lxc'> <name>test1</name> <uuid>518539ab-7491-45ab-bb1d-3d7f11bfb0b1</uuid> <memory unit='KiB'>1048576</memory> <currentMemory unit='KiB'>1048576</currentMemory> <memtune> <hard_limit unit='KiB'>1048576</hard_limit> <soft_limit unit='KiB'>1048576</soft_limit> <swap_hard_limit unit='KiB'>2097152</swap_hard_limit> </memtune> <vcpu placement='static'>2</vcpu> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='block' accessmode='passthrough'> <source dev='/dev/data/test1'/> <target dir='/'/> </filesystem> <filesystem type='ram' accessmode='passthrough'> <source usage='524288' units='KiB'/> <target dir='/dev/shm'/> </filesystem> <interface type='direct'> <mac address='02:00:00:1a:a9:54'/> <source dev='br0' mode='bridge'/> </interface> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> </domain> And all was fine, before I accidentally upgraded Centos to 7.1.1503 After upgrade LXC can't start with diagnostic: [root@node14 ~]# virsh start test1 error: Failed to start domain test1 error: internal error: guest failed to start: internal error: Child process (ip link set macvlan0 netns 25263) unexpected exit status 2: RTNETLINK answers: Invalid argument I reinstall libvirt 1.2.14, but catch same error. If someone will experience in solving this problem - it will be interesting to hear about. b.r. Maxim Kozin

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[libvirt-users] XML vm configfile with Display using QEMU GTK interface
by Vinícius Ferrão 09 Apr '15

09 Apr '15

Hello guys, I'm trying to start a VM using the QEMU GTK Display Interface instead of a SDL window. But I'm failing. My actual setting is using SDL with this XML line: <graphics type='sdl' display=':0.0' xauth='/home/ploog/.Xauthority'/> I changed to: <graphics type='gtk'> But it fails to start the VM. Any ideias? Thanks in advance,

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[libvirt-users] SIGTERM signal to qemu-kvm process
by Jatin Davey 09 Apr '15

09 Apr '15

Hi I am using QEMU 0.12.1 as the hypervisor in my RHEL installation of 6.5. I wanted to know if there are any side-effects with respect to VM image corruption when i use SIGTERM signal to kill a qemu-kvm process which effectively stops my VM running on the host. Appreciate if you can provide me some valuable information in this regard. Thanks Jatin

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[libvirt-users] [Libvirt] [virsh] Transport Error during enumeration while connecting libvirt to Hyper-V Server
by Dhaval_Shah1＠dell.com 07 Apr '15

07 Apr '15

Hi all, I am using libvirt 1.1.1. I can successfully able to connect with Qemu driver but when I am trying to connect to the windows Hyper-V using virsh, I am getting failure. [root@localhost hyperv]# virsh version Compiled against library: libvirt 1.1.1 Using library: libvirt 1.1.1 Using API: QEMU 1.1.1 Running hypervisor: QEMU 1.5.3 When I am doing virsh to connect to hype-V I am getting failure that [root@localhost hyperv]# virsh -c hyperv://172.16.67.192 Enter username for 11.16.67.92 [administrator]: administrator Enter administrator's password for 11.16.67.92: error: failed to connect to the hypervisor error: internal error: Transport error during enumeration: Transport initialization failed (2) using gdb I came to know that from the function "hypervEnumAndPull()" it is calling "wsmc_action_enumerate()" and we are verifying the response using "hyperyVerifyResponse" and from there it fails and cleanup is being called. Code : response = wsmc_action_enumerate(priv->client, root, options, filter); if (hyperyVerifyResponse(priv->client, response, "enumeration") < 0) { goto cleanup; } I have correctly done the settings on my hyper-v Server using below commands: winrm set winrm/config/service/auth @{Basic="true"} winrm set winrm/config/service @{AllowUnencrypted="true"} Does anyone knows what could be wrong or I am missing something or can anyone help to solve this issue. Thanks & Regards, Dhaval Shah

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[libvirt-users] can't boot from http cdrom
by Vasiliy Tolstov 06 Apr '15

06 Apr '15

Hi. I'm try to boot from http cdrom and can't do that in case of scsi: <disk type='network' device='cdrom'> <driver name='qemu' type='raw' cache='unsafe'/> <source protocol='http' name='/vps/rescue-4.5.2'> <host name='xx.xx' port='80'/> </source> <backingStore/> <target dev='sdb' bus='scsi'/> <readonly/> <alias name='scsi0-0-0-1'/> <address type='drive' controller='0' bus='0' target='0' unit='1'/> </disk> but in case of ide: <disk type='network' device='cdrom'> <driver name='qemu' type='raw' cache='unsafe'/> <source protocol='http' name='/vps/rescue-4.5.2'> <host name='xx.xx' port='80'/> </source> <backingStore/> <target dev='hda' bus='ide'/> <readonly/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> all works fine. libvirt - 1.2.10 qemu - 2.0.0 seabios - 1.7.5 -- Vasiliy Tolstov, e-mail: v.tolstov(a)selfip.ru jabber: vase(a)selfip.ru

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[libvirt-users] mlocate/updatedb and btrfs subvolume mounts
by G. Richard Bellamy 03 Apr '15

03 Apr '15

I've just noticed that I'm having issues with finding files using "locate" when those files are on btrfs subvolume mounts. The issue is that updatedb cannot discern the difference between a btrfs bind mount and btrfs subvolume [1]. This generally means that if you're using btrfs subvolume mounts and updatedb at the same time, and you want to index those subvolumes, you'll need to set PRUNE_BIND_MOUNTS to 0 or "no". And then deal with all the cruft that causes. >From the bug above, you can see that the RedHat dev Michal Sekletar is out of ideas. I'm not sure if he's reached out here or not... and if not, he might welcome some help from the folks on this list. Regrads, Richard [1] https://bugzilla.redhat.com/show_bug.cgi?id=906591#c30

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[libvirt-users] P2P live migration with non-shared storage: fails to connect to remote libvirt URI qemu+ssh
by Kashyap Chamarthy 03 Apr '15

03 Apr '15

Migration without --p2p works just fine, ie. the below works: $ virsh migrate --verbose --copy-storage-all \ --live cvm1 qemu+ssh://kashyapc@devstack3/system Migration: [100 %] Result: - On the source host, the guest is shut off - On the destination host, the guest is live migratied successfully Migration with "--p2p" fails, a simple test below: First, I should note, I didn't modify any settings in /etc/libvirt/libvirtd.conf on both source and destination hosts, except for libvirt logging filters. (0) On source and destination hosts, SSH keys are setup so that passwordless auth works: $ ssh-keygen -t $ eval `ssh-agent` $ ssh-add .ssh/id_rsa $ ssh-copy-id root@devstack3 (1) Check if the connection to the remote host works w/o a prompt for user credentials (the below works as user and root): $ virsh -c qemu+ssh://kashyapc@devstack3/system Welcome to virsh, the virtualization interactive terminal. Type: 'help' for help with commands 'quit' to quit virsh # (2) Perform peer to peer live migration (as root): $ virsh migrate --verbose --p2p --copy-storage-all \ --live cvm1 qemu+ssh://kashyapc@devstack3/system error: operation failed: Failed to connect to remote libvirt URI qemu+ssh://kashyapc@devstack3/system: Cannot recv data: Permission denied, please try again. Permission denied, please try again. Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).: Connection reset by peer >From libvirtd debug log: [. . .] 2015-04-03 06:04:16.221+0000: 31009: debug : virCommandRunAsync:2408 : About to run LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin ssh -l kashyapc devstack3 sh -c ''\''if '\ ''nc'\'' -q 2>&1 | grep "requires an argument" >/dev/null 2>&1; then ARG=-q0;else ARG=;fi;'\''nc'\'' $ARG -U /var/run/libvirt/libvirt-sock'\''' 2015-04-03 06:04:16.223+0000: 31009: debug : virCommandRunAsync:2411 : Command result 0, with PID 11204 2015-04-03 06:04:16.300+0000: 31009: error : virNetSocketReadWire:1564 : Cannot recv data: Permission denied, please try again. Permission denied, please try again. Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).: Connection reset by peer 2015-04-03 06:04:16.300+0000: 31009: debug : do_open:1194 : driver 6 remote returned ERROR 2015-04-03 06:04:16.300+0000: 31009: debug : qemuDomainObjExitRemote:1695 : Exited remote (vm=0x7f727c005f80 name=cvm1) 2015-04-03 06:04:16.300+0000: 31009: error : doPeer2PeerMigrate:4711 : operation failed: Failed to connect to remote libvirt URI qemu+ssh://kashyapc@devstack3/system: Cannot recv data: Permission denied, please try again. Permission denied, please try again. Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).: Connection reset by peer 2015-04-03 06:04:16.300+0000: 31009: debug : qemuMigrationRestoreDomainState:1429 : driver=0x7f728c160980, vm=0x7f727c005f80, pre-mig-state=1, state=1 2015-04-03 06:04:16.300+0000: 31009: debug : qemuDomainObjEndAsyncJob:1497 : Stopping async job: migration out (vm=0x7f727c005f80 name=cvm1) 2015-04-03 06:04:16.301+0000: 31007: debug : virProcessAbort:167 : aborting child process 11204 2015-04-03 06:04:16.301+0000: 31007: debug : virProcessAbort:175 : trying SIGTERM to child process 11204 [. . .] What else am I missing? -- /kashyap

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[libvirt-users] ESX VM from scratch
by Paul Apostolescu 01 Apr '15

01 Apr '15

I want to create a virtual machine from scratch in ESX but I can't figure out how to create the disks - the vmdk files. Any hints on how that can be done or even if it's possible at all ? Thanks

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[libvirt-users] couple of ceph/rbd questions
by Brian Kroth 01 Apr '15

01 Apr '15

Hi, I've recently been working on setting up a set of libvirt compute nodes that will be using a ceph rbd pool for storing vm disk image files. I've got a couple of issues I've run into. First, per the standard ceph documentation examples [1], the way to add a disk is to create a block in the VM definition XML that looks something like this: <disk type='network' device='disk'> <source protocol='rbd' name='libvirt-pool/new-libvirt-image'> <host name='{monitor-host-1}' port='6789'/> <host name='{monitor-host-2}' port='6789'/> <host name='{monitor-host-3}' port='6789'/> </source> <target dev='vda' bus='virtio'/> <auth username='libvirt'> <secret type='ceph' uuid='9ec59067-fdbc-a6c0-03ff-df165c0587b8'/> </auth> </disk> The trouble with this approach is that those ceph cluster details (secret uuid and monitor host lists), need to be stored separately in every single VM disk definition separately. That makes for a lot of maintenance when those details need to change (eg: replace a monitor host (common), or change the auth details (less common)). I'd prefer to be able to define a libvirt storage pool that contains those details, and then reference the disks within each VM as volumes, so that I only need to change the ceph monitor/auth details once per libvirt compute host, rather than for every single VM disk definition. I've rebuilt my libvirt packages using --with-rbd-support so that I can successfully define a libvirt storage pool as follows: <pool type='rbd'> <name>libvirt-rbd-pool</name> <source> <name>libvirt-pool</name> <host name='{monitor-host-1}' port='6789'/> <host name='{monitor-host-2}' port='6789'/> <host name='{monitor-host-3}' port='6789'/> <auth username='libvirt' type='ceph'> <secret uuid='9ec59067-fdbc-a6c0-03ff-df165c0587b8'/> </auth> </source> </pool> However, when I go to start a VM with a volume created in that pool as follows, I get an error: <disk type='volume' device='disk'> <source pool='libvirt-rbd-pool' volume='{rbd-volume-name}'/> <driver name='qemu' type='raw' cache='writethrough'/> <target dev='vda' bus='virtio'/> </disk> "using 'rbd' pools for backing 'volume' disks isn't yet supported" When I dug through the code, it appears that there's an explicit check for RBD type storage pools (VIR_STORAGE_POOL_RBD) that disables that (libvirt-1.2.13/src/storage/storage_driver.c:3159). Is there a particular reason for that? Has it just not been implemented yet, or am I specifying the disk definition in the wrong way? Second, using the former disk definition method, I'm able to run VMs under qemu, *and* migrate them. Very slick. Nice work all. However, I found that since by default virt-manager leaves the VM defined on both the source and destination, I'm actually able to start the VM in both places. I didn't see an option to disable that, so I just wrote a simple wrapper script to do the right thing via virsh using --undefinesource, but I can't guarantee that some other admin might not skip that and just use the GUI. It appears that libvirt (or is it qemu?) doesn't set rbd locks on the disk image files by default. After running across [2], I had originally thought about writing some hooks to set and release locks on the VMs using the rbd cli, but after reading the docs on the migration process [3], I think that's probably not possible since the VM is started in both places temporarily. I think my other option is to setup some shared fs (maybe cephfs) and point virtlockd at it so that all of the libvirt compute hosts register locks on VMs properly. However, I thought I'd ask if anyone knows if there's some magic other parameter or setting I can use to have libvirt/qemu just use rbd locks natively. Or, is that not implemented either? Thanks for your help. Cheers, Brian [1] <http://ceph.com/docs/master/rbd/libvirt/#configuring-the-vm> [2] <https://www.redhat.com/archives/libvirt-users/2014-January/msg00058.html> [3] <https://libvirt.org/hooks.html#qemu_migration>

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[libvirt-users] Lispvirt: porting Libvirt API for Common Lisp
by Julio Faracco 01 Apr '15

01 Apr '15

Hi everyone! I'm developing a Libvirt bindings for Common Lisp. The project is called "Lispvirt". I created this project because I was doing a project in Lisp to manage Virtual Machines. So, I needed to implement some code using C and set up Lisp to access those methods in C. This project was becoming a mess. The better scenario is using only Lisp. That's why I started to develop this bindings for Lisp. Now, I'm only using Lisp for it. For a while, I'm hosting this project on GitHub: https://github.com/jcfaracco/lispvirt But I'm planning to move it to common-lisp.net. There is still many things to do (callbacks, structures, some project decisions and planings, documentation, etc). Any contribution or suggestions would be helpful. The most important things to do now are test, test and test. Just sharing if someone is interested to help us. Thanks! *--* *Julio Cesar Faracco*

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[libvirt-users] Networking issues in host
by G. Richard Bellamy 30 Mar '15

30 Mar '15

I've been having intermittent network issues on my Host - they go away when I stop and disable libvirtd and then reboot. They do not go away if I just stop libvirtd and don't reboot. I'm at a loss as to where to start with my troubleshooting, and being a relative n00b to libvirt, I'd love any pointers. Regards, Richard

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[libvirt-users] No package 'libvirt' found
by Rudy YAYON 28 Mar '15

28 Mar '15

Hi, After successful libvirt compilation on Cygwin, I am trying to run virt-manage which requests LibvirtGLib: $ virt-manager Traceback (most recent call last): File "/usr/share/virt-manager/virt-manager", line 30, in <module> from gi.repository import LibvirtGLib ImportError: cannot import name LibvirtGLib I understand that I need to compile libvirt-glib. The problem is that I get the following error once running ./configure: checking whether C compiler handles -fexceptions... yes checking whether C compiler handles -fasynchronous-unwind-tables... yes checking whether C compiler handles -fipa-pure-const... yes checking whether C compiler handles -Wno-suggest-attribute=pure... yes checking whether C compiler handles -Wno-suggest-attribute=const... yes checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes checking for LIBVIRT... no configure: error: Package requirements (libvirt >= 0.10.2) were not met: No package 'libvirt' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables LIBVIRT_CFLAGS and LIBVIRT_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. The only "libraries" I have been able to find are: $ cp /usr/local/bin/cygvirt- cygvirt-0.dll cygvirt-lxc-0.dll cygvirt-qemu-0.dll Copying it to /usr/lib doesn't change anything. Renaming these files from cygvirt* to libvirt* either. Any idea? Cordialement,Rudy YAYON

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Re: [libvirt-users] 答复: libvirtd can't start
by Martin Kletzander 27 Mar '15

27 Mar '15

On Thu, Mar 26, 2015 at 02:55:04PM +0800, 梅磊 wrote: >Thanks for your reply, Martin, I have read the coredump, but I am not familiar with libvirt, so could you help me to figure it out why it crash? >Attachment is the coredump gdb output and all the generate files when libvirtd stop. > I forgot to ask you to install debuginfo packages to further investigate. But looking at the log only netcf-debuginfo is needed. Could you install it and then run the "t a a bt f" again, please? From the current logs I can only guess that there is some network XML mangled and netcf can't read it. When you're power went out, as you said, is it possible you were updating something in the meantime? Try running "rpm -Va" to see if there's something broken in the system. >And Do you think this issue is the same issue with the below root cause? >https://bugzilla.redhat.com/show_bug.cgi?id=1179981 > It is not, that is caused by something else. > > > >-Best Regards, >Andy > > >-----邮件原件----- >发件人: Martin Kletzander [mailto:mkletzan@redhat.com] >发送时间: 24 March 2015 21:20 >收件人: 梅磊 >抄送: libvirt-users(a)redhat.com >主题: Re: [libvirt-users] libvirtd can't start > >On Tue, Mar 24, 2015 at 04:29:07PM +0800, 梅磊 wrote: >>Hi experts, >> The libvirtd can’t start on my server after the server interruption of >>power supply, the status is below: >> >>[root@openstack3 libvirt]# service libvirtd status Redirecting to >>/bin/systemctl status libvirtd.service libvirtd.service - >>Virtualization daemon >> Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled) >> Active: failed (Result: signal) since Tue 2015-03-24 16:10:31 CST; >>7min ago >> Process: 27372 ExecStart=/usr/sbin/libvirtd $LIBVIRTD_ARGS >>(code=killed, >>signal=SEGV) >> Main PID: 27372 (code=killed, signal=SEGV) >> >>Mar 24 16:10:31 openstack3 libvirtd[27372]: 2015-03-24 08:10:31.412+0000: >>27383: debug : virFileClose:90 : Closed fd 22 Mar 24 16:10:31 >>openstack3 libvirtd[27372]: 2015-03-24 08:10:31.412+0000: >>27383: debug : virFileClose:90 : Closed fd 22 Mar 24 16:10:31 >>openstack3 libvirtd[27372]: 2015-03-24 08:10:31.412+0000: >>27383: debug : virFileClose:90 : Closed fd 22 Mar 24 16:10:31 >>openstack3 libvirtd[27372]: 2015-03-24 08:10:31.412+0000: >>27383: debug : virFileClose:90 : Closed fd 22 Mar 24 16:10:31 >>openstack3 libvirtd[27372]: 2015-03-24 08:10:31.413+0000: >>27383: debug : virFileClose:90 : Closed fd 22 Mar 24 16:10:31 >>openstack3 libvirtd[27372]: 2015-03-24 08:10:31.413+0000: >>27383: debug : virStateInitialize:847 : Running global init for netcf >>state driver Mar 24 16:10:31 openstack3 libvirtd[27372]: 2015-03-24 >>08:10:31.413+0000: >>27383: debug : virObjectNew:199 : OBJECT_NEW: obj=0x7f73f0080d00 >>classname=virNetcfDriverState Mar 24 16:10:31 openstack3 >>libvirtd[27372]: ====== end of log ===== Mar 24 16:10:31 openstack3 >>systemd[1]: libvirtd.service: main process exited, code=killed, >>status=11/SEGV Mar 24 16:10:31 openstack3 systemd[1]: Unit >>libvirtd.service entered failed state. >> >>And the attachment is the log after restart the libvirtd. >> >>After long time search on google, I didn’t get any useful information, >>so anyone can give me some hint on this issue? >> > >What did you search for? > >According to the log: >abrt-hook-ccpp: Saved core dump of pid 28928 (/usr/sbin/libvirtd) to >/var/tmp/abrt/ccpp-2015-03-24-16:19:22-28928 (97218560 bytes) > >libvirtd has segfaulted and you have the coredump. Use gdb to open >it: ># gdb -c /var/tmp/abrt/ccpp-2015-03-24-16:19:22-28928 > >and then look at what happened, if you can't make anything of it, post it as an attachment here or create a bug from it: > >(gdb) bt >(gdb) t a a bt full > >>-BR, >>Andy >> > > >>_______________________________________________ >>libvirt-users mailing list >>libvirt-users(a)redhat.com >>https://www.redhat.com/mailman/listinfo/libvirt-users

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[libvirt-users] Channel Device virConnectListAllNodeDevices
by Neel Basu 27 Mar '15

27 Mar '15

Hello, I've added a Channel Device through virt-manager GUI. virsh dumpxml shows the device as. <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/ubuntusaucy.marx'/> <target type='virtio' name='marx'/> <alias name='channel2'/> <address type='virtio-serial' controller='0' bus='0' port='3'/> </channel> I am expecting virConnectListAllNodeDevices to have the device in its output. But I don't see it there. Is it the right function to call ? virNodeDevicePtr* devices; int dev_count = virConnectListAllNodeDevices(conn, &devices, 0); std::cout << "Devices: " << dev_count << std::endl; for(virNodeDevicePtr* device = devices; device < devices+dev_count; ++device){ std::cout << virNodeDeviceGetName(*device) << std::endl; } returns 66 devices but once I loop through devices I don't get any corresponding name for the channel device. Tried using virConnectListAllNodeDevices(conn, &devices, VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS); returns 0 devices. Thanks.

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[libvirt-users] Installation of libvirt on Ubuntu
by WANG Cheng D 27 Mar '15

27 Mar '15

Dear all, I wonder if libvirt can work on Ubuntu. As you know, it is very convenient to install libvirt on Fedora. I can download the libvirt packet from libvirt.org and install it using command ./configure, make and make install. As I am going to install an open source simulation system named openairinterface, Ubuntu is the recommended OS, and I want to install the simulation system in libvirt lxc. (as you may know, there is another lxc user space tool on Ubuntu whose official website is "https://linuxcontainers.org", which I don't want to use). My questions are: 1) Can I install libvirt on Ubuntu with the same installation steps as on Fedora (i.e., manually download the tar.gz packet and install it locally)? I found a link talking about installation libvirt on Ubuntu which installs something like "libvirt-bin" (https://help.ubuntu.com/lts/serverguide/libvirt.html) I am not sure if libvirt can be installed following this instruction? 2) How can I create the rootfs for a Ubuntu container if libvirt can be installed on Ubuntu? I create the rootfs for Fedora container using: # yum --installroot=/root/fedora16linux container --releasever=19 install -y openssh, bridge-utils". How can I achieve this on Ubuntu? 3) If libvirt can work on Ubuntu, Can a disk file on the host OS be exposed to a Ubuntu container just like on Fedora? With my warmest regards, Cheng Wang

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Re: [libvirt-users] pty pairing host - guest
by Neel Basu 27 Mar '15

27 Mar '15

Getting no output on /dev/hvcNN On Thu, Mar 19, 2015 at 3:15 PM, Daniel P. Berrange <berrange(a)redhat.com> wrote: > On Thu, Mar 19, 2015 at 01:29:37PM +0530, Neel Basu wrote: > > HI!, > > > > I am using virt-manager GUI. There I can add a `Console Device` through > > Add Hardware. I can add a virtio pty WITHOUT restarting the VM. also I > get > > a pty allocated to host machine say `/dev/pty/M` > > > > My expectation is this `host:/dev/pty/M` is connected with a > > `guest:/dev/ttyN`. so If I open minicom or screen and write to > > `host:/dev/pty/M` it will be propagated to 'guest:/dev/ttyN'. Is my > > expectation correct ? > > > > If it is correct how will I know what is the guest tty allocated against > > this host pty ? > > No, that's not how it works. The <console> devices are exposed to > the guest as /dev/hvcNN devices. Starting with NN==0 > > as per the dumpxml output <console type='pty' tty='/dev/pts/1'> <source path='/dev/pts/1'/> <target type='serial' port='0'/> <alias name='serial0'/> </console> I expected host:/dev/pts/1 is paired with guest:/dev/hvc0 So I tried to communicate with minicom,echo,cat with these two but I saw no output. what I echo on /dev/pts/1 doesn't pass to /dev/hvc0 or vice verse. > > > Similar to console device I can add a Serial device but that requires a > > reboot of the guest VM. However I tried that though I prefer to do it > > without a guest restart. > > > > <serial type='pty'> > > <source path='/dev/pts/1'/> > > <target port='0'/> > > <alias name='serial0'/> > > </serial> > > > > here also I expected host:/dev/pts/1 is paired with /dev/ttyS0 but > couldn't > > communicate. > > The serial port device supported is a 1990 era ISA bus serial port > so there's no hotplug for that. Only the paravirt consoles can be > hotplugged. > > Regards, > Daniel > -- > |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ > :| > |: http://libvirt.org -o- http://virt-manager.org > :| > |: http://autobuild.org -o- http://search.cpan.org/~danberr/ > :| > |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc > :| >

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