October 2009 - virt - Fedora mailing-lists

how to edit dhcp configuration
by Pavel Lisy 19 Oct '09

19 Oct '09

Hello I want to set fixed IP for host (from MAC address) in dhcp. How can I do it through libvirt configuration? There is not possibility set it in virt-manager. I can edit manually ldapnet.xml (ldapnet is name of my network) but: 1. question: Where is right place to edit it: /etc/libvirt/qemu/networks/ldapnet.xml or /var/lib/libvirt/network/ldapnet.xml (after reboot one file replaces other but which direction but I didn't find which direction) 2. question: How can I propagate this changes? Neither /etc/init.d/libvirtd reload /etc/init.d/libvirtd restart changes dnsmasq settings. It is done only during reboot, why? 3. I've found this workaround: * kill dnsmasq process for this settings * start dnsmasq with new settings, ex. .... --dhcp-host 52:54:00:22:a7:76,ldap-m1.ldapnet.tmapy.cz,192.168.241.101 Is it way how to do it through libvirt utility? Pavel -- Pavel Lisy <pavel.lisy(a)gmail.com>

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Re: nagios-virt: configure: error: Cannot find `nagios' program
by Richard W.M. Jones 16 Oct '09

16 Oct '09

On Fri, Oct 16, 2009 at 11:39:38AM +0200, Stephane Grand wrote: > Hello, > > I've found your web page about nagios-virt (http://et.redhat.com/~rjones/nagios-virt/) This tools interesting me to supervise servers and vm. > > Unfortunately, I can't test it. Here is error message I got when I execute "./configure" > > [root] # ./configure > ... > checking for stdint.h... yes > checking for unistd.h... yes > checking libvirt/libvirt.h usability... yes > checking libvirt/libvirt.h presence... yes > checking for libvirt/libvirt.h... yes > checking for virConnectGetCapabilities... yes > checking for nagios... no > configure: error: Cannot find `nagios' program > > I've retried this command with others options but I got the same error message Does the 'nagios' command exist? Is it on the $PATH? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://et.redhat.com/~rjones/libguestfs/ See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html

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Re: Re: nagios-virt: configure: error: Cannot find `nagios' program
by Stephane Grand 16 Oct '09

16 Oct '09

Thank you for the answer. Here is what I have done to follow the installation process. [root] # PATH=$PATH:/var/supervision/nagios/bin/ [root] # ./configure --with-nagios-configdir=/var/supervision/nagios/etc [root] # make [root] # ./nagios-virt config PACKAGE_NAME nagios-virt PACKAGE_VERSION 0.2.0 NAGIOS_CONFIGDIR /var/supervision/nagios/etc/ NV_DATADIR /usr/local/share/nagios-virt-0.2.0 ==>But I've got another problem. [root] # ./nagios-virt install Installing virt-library.cfg in /var/supervision/nagios/etc/ ... Installing /var/supervision/nagios/etc//commands.cfg ... Warning: could not install /var/supervision/nagios/etc//commands.cfg This file from the standard Nagios distribution is required in order for nagios-virt to work correctly. Installing virt-hosts.cfg in /var/supervision/nagios/etc/ ... virConnectNumOfDomains: failed Why this command can not install "commands.cfg" file ? Thank you. Stephane ======================================== Date du message : oct. 16 2009, 12:05 PM De : "Richard W.M. Jones" <rjones(a)redhat.com> A : "Stephane Grand" <stephane.grand(a)atosorigin.com>, fedora-virt(a)redhat.com Copie : Sujet : Re: nagios-virt: configure: error: Cannot find `nagios' program On Fri, Oct 16, 2009 at 11:39:38AM +0200, Stephane Grand wrote: > Hello, > > I've found your web page about nagios-virt (http://et.redhat.com/~rjones/nagios-virt/) This tools interesting me to supervise servers and vm. > > Unfortunately, I can't test it. Here is error message I got when I execute "./configure" > > [root] # ./configure > ... > checking for stdint.h... yes > checking for unistd.h... yes > checking libvirt/libvirt.h usability... yes > checking libvirt/libvirt.h presence... yes > checking for libvirt/libvirt.h... yes > checking for virConnectGetCapabilities... yes > checking for nagios... no > configure: error: Cannot find `nagios' program > > I've retried this command with others options but I got the same error message Does the 'nagios' command exist? Is it on the $PATH? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://et.redhat.com/~rjones/libguestfs/ See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html ----------------------- Atos Origin Stéphane Grand Open Source Center dcen-net-grand.consultant(a)dgfip.finances.gouv.fr

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USB passthrough and disconnect
by Gianluca Cecchi 15 Oct '09

15 Oct '09

Hello, following the instructions at http://www.redhat.com/archives/fedora-virt/2009-June/msg00182.html I'm able to attach an USB key to my Windows XP SP3 guest. More better, I'm able to attach and use it with the guest already started. Very good! (Actually I don't have SElinux enabled so I skipped what related to it ) The doubt is, when in Windows I then safely remove the key and get the ok msg from the os, if I try to hot remove the USB device in details windows of the guest I receive the message that will be effective after reboot. Is this expected and the hot unplug a feature next to come, or do I miss anything in correct way to do things? My sw versions for host are F11 x86_64 with up2date rawvirt repo: libvirt-0.7.1-11.fc11.x86_64 qemu-kvm-0.11.0-6.fc11.x86_64 virt-manager-0.8.0-7.fc11.noarch Suppose the message is correct behaviour based on current state of things, what would be correct approach if during a vm session I use several usb keys for example? 1) insert first usb key in host 2) add hw of first usb key in details tab of guest 3) use it in guest and at the end disconnect it from inside guest OS 4) remove hw in details tab of guest; confirming that this will overwrite any othe rchanges occured in guest config.... 5) remove key form host usb plug 6) insert second usb key in host 7) add hw of second usb key in details tab of guest 8) use it in guest and at the end disconnect it from inside guest OS 9) ? If I do same as 4 do I loose the action made in 4) ?? Do I have to remove more hw components together only at the end? Any removal will let forget the previous ones? It seems not clear to me this message about " This device could not be removed from the running machine. Would you like to remove the device after the next VM shutdown? Warning: this will overwrite any other changes that require a VM reboot. " This is true for more than one usb key, but also for more than one device in general.... Thanks in advance, Gianluca

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status of guest not well visible when selected
by Gianluca Cecchi 13 Oct '09

13 Oct '09

So all is working like a charm and I have to scale to aesthetics.... ;-) With latest rawvirt repo on F11, when I have a guest selected in virt-manager gui, the current status of it (Running vs Shutoff) is pretty difficult to notice.... Ok, there is the play symbol inside the terminal icon but probably a black color for the state of the guest, at least when selected, would be more readable. Planning to scratch these two hosts of mine from F11 + rawvirt to F12 Beta... any insights/suggestions? Preupgrade option viable in your opinion? Bye and thanks, Gianluca

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Re: [fedora-virt] how to attach to qemu monitor
by Gianluca Cecchi 13 Oct '09

13 Oct '09

On Tue, Oct 13, 2009 at 3:52 PM, Don Dutile <ddutile(a)redhat.com> wrote: > Gianluca Cecchi wrote: > >> I don't remember if it is possible to connect to qemu monitor with >> virt-manager/libvirtd managed guests. >> If so, how can I accomplish this? >> >> Thanks in advance, >> Gianluca >> > do you mean?: > > virsh console <guest-name> > No, not this. Putting correct lines in guest kernel command line I'm able to see what you wrote, directly from virt-manager through View --> Consoles --> Serial 0 I mean qemu monitor itself. The one that you activate inside qemu guest when you run qemu or qemu-kvm and then press Ctrl+ Alt + 2 and you get something like QEMU 0.11.0 monitor - type 'help' for more information (qemu) I understand that it would be risky to make things from the qemu monitor itself bypassing libvirt, and so I asked, just to know Thanks, Gianluca

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how to attach to qemu monitor
by Gianluca Cecchi 13 Oct '09

13 Oct '09

I don't remember if it is possible to connect to qemu monitor with virt-manager/libvirtd managed guests. If so, how can I accomplish this? Thanks in advance, Gianluca

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gPXE and localboot
by Ewan Mac Mahon 13 Oct '09

13 Oct '09

Hi, According to https://fedoraproject.org/wiki/Features/VirtgPXE the switch to gPXE should make PXE 'localboot' (which etherboot didn't support) start working. I've tried setting up a network booting VM on a host running F11 + virt-preview and while it uses gPXE, loading a pxelinux configuration that tries to do localboot doesn't work - gPXE loops and does DHCP again[1]. The same config does work on real hardware, so am I missing a detail somewhere, do I need a full F12 install, or is this not supposed to be working yet? Ewan [1] screenshot here: http://www-pnp.physics.ox.ac.uk/~macmahon/gPXElocalboot.png

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Re: Question about segmentation fault under febootstrap
by Richard W.M. Jones 12 Oct '09

12 Oct '09

On Sat, Oct 10, 2009 at 04:56:35PM +0300, Vitaliy Yermolenko wrote: > I'm a big fun of Red Hat/Fedora distributives, and, have tried your > febootstrap Fedora bootstrapping system, which seems very interesting for me > in order to make own lightweighted Fedora-based Linux distributive. > I'm currently using Fedora 11 with fresh 2.6.31.1 kernel on AMD Phenom II X4 > 945 CPU. But, unfortunately, I have got many segmentation faults during > running ./minimal-filesystem.sh - see below. You should ask questions on one of the proper mailing lists. I've CC'd this to fedora-virt. Segfaults are almost certainly because you're trying to install a guest >= F12 on an F11 host. There's some ABI incompatibility in glibc which causes fakeroot to segfault in this case. Install an F11 guest if you have an F11 host, or upgrade to F12 host. Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://et.redhat.com/~rjones/libguestfs/ See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html

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libvirtd and public access to guests
by Pavel Lisy 09 Oct '09

09 Oct '09

Hello I've started playing with libvirt and I have question? What is proper way to make guest accessible from net. I have mode=nat /var/lib/libvirt/network/default.xml. libvirtd makes this rules in FORWARD chain -A FORWARD -d 192.168.231.0/24 -o virbr0 -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.231.0/24 -i virbr0 -j ACCEPT -A FORWARD -i virbr0 -o virbr0 -j ACCEPT -A FORWARD -o virbr0 -j REJECT --reject-with icmp-port-unreachable -A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable -A FORWARD -j REJECT --reject-with icmp-host-prohibited If I add iptables -I FORWARD -i eth0 -o virbr0 -j ACCEPT guests are accessible My question is: Is is possible write this somewhere to configuration? I've tried to put it in /etc/sysconfig/iptables but it libvirtd put his rules before mine. I've found two directories /var/lib/libvirt/iptables/filter /var/lib/libvirt/iptables/nat I suppose I can write my rules here but I haven't find any docs about format. Can somebody help me with it? Pavel

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user qemu has no access to usb devices
by Tom Horsley 09 Oct '09

09 Oct '09

I don't know if something is busted in my rawhide setup, or if this is just a real problem with the new scheme of running as user qemu, but user qemu (on my system at least), has no access to physical usb devices. I had to change the qemu.conf file to tell it to run as root before it could attach a usb device to my windows XP virtual machine. See https://bugzilla.redhat.com/show_bug.cgi?id=524723#c5

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<Hostdevice> parameters
by Andrés García 08 Oct '09

08 Oct '09

Hi, I want to set up wo virtual WinXP machines to act as licence managers for a couple of CAD/CAM programs. With the first one, everything went well, but when I got the second one to work, the virtual machines got confused, as if they didn't know which was their dongle. I think it is because in their definition files there is something like: ... <hostdev mode='subsystem' type='usb'> <source> <vendor id='0x1234'/> <product id='0xbeef'/> </source> </hostdev> ... The vendor and product ids are the same in both cases. I saw in the docs that I can't change it to: <hostdev mode='subsystem' type='sub'> <source> <address bus='0x06' slot='0x02' function='0x0'/> </source> </hostdev> 'bus' and 'slot' I can get with 'lsusb', but what does 'function' mean? Thanks, Andrés

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Should python-virtinst %require libvirt?
by James Laska 08 Oct '09

08 Oct '09

Greetings, Quick question about virt package dependencies. The Rawhide Acceptance Install Test (which does a virt install) [1] first installs the required packages by doing: # yum -y install qemu-kvm python-virtinst pax It seems that installing python-virtinst used to also pull libvirt into the transaction. However, this is no longer the case [2]. Should the deps chain when installing python-virtinst also install libvirt? Or is it expected that if you wish to run your own virt daemon, you should install libvirtd? Thanks, James [1] http://git.fedorahosted.org/git/?p=autoqa.git;a=blob;f=tests/rats_install/r… [2] rats_install test output - http://pastie.org/647021

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question on virt-install (and partly anaconda)
by Kashyap Chamarthy 08 Oct '09

08 Oct '09

Hi, I run something like this, for un-attended automated guest installs. =============================================================================================== #!/bin/bash domname=yellow location=http://10.65.x.x/fedora/linux/releases/11/Fedora/x86_64/os/ vmimage="/var/lib/libvirt/images/$domname.img" echo "Creating domain $domname" echo "Image is here $vmimage" echo "Location of the OS sources $location" virt-install --connect=qemu:///system \ --network=bridge:br0 \ --extra-args="ks=http://10.65.y.y/fedora-minimal.ks console=tty0 console=ttyS0,9600" \ --name $domname \ --file=$vmimage \ --file-size=8 \ --ram 1024 \ --accelerate \ --nonsparse \ --location=$location \ ============================================================================================ now here, -- once the install is finished and guest reboots, a console does /not/ show up. Because, as the "console=tty0 console=ttyS0,9600" args from the script are not picked by the anaconda of guest while booting. -- A console shows up only when I manually edit the guest machine's kernel args and append "console=tty0 console=ttyS0,9600" , /then/ boot the guest - now console shows up happily. My question is : shouldn't the anaconda of the guest machine pick up automatically "console=tty0 console=ttyS0,9600" in the --extra-args mentioned in the virt-install above? Is this the expected behaviour? or shall I file a bug. Regards, Kashyap

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Providing access to a single VM
by Dennis Jacobfeuerborn 07 Oct '09

07 Oct '09

Hi, is there a way to provide virt-viewer access to a single VM? After some googling I can only find ways to provide access to a whole virt-manager instance but I'd like to create VMs for users an only give them access to their own virtual machines? Is this possible? Regards, Dennis

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Domain doesn't show up
by Tim Richardson 07 Oct '09

07 Oct '09

I'm trying to install xp virtual machine from an .iso on the disk, I have a virtual machine called localhost with qemu as ID. It has a storage area at /var/lib/libvirt/images, i'm right clicking on that and choosing new then following the wizard but it keeps failing whilst creating the domain. Is anyone familiar with this scenario or have any suggestions? regards Tim Unable to complete install '<class 'libvirt.libvirtError'> internal error Domain microXP didn't show up Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/create.py", line 1501, in do_install dom = guest.start_install(False, meter = meter) File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 541, in start_install return self._do_install(consolecb, meter, removeOld, wait) File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 633, in _do_install self.domain = self.conn.createLinux(install_xml, 0) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 974, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: internal error Domain microXP didn't show up '

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suggestion: a service for tuning ksm according to memory load
by Dan Kenigsberg 06 Oct '09

06 Oct '09

If you are running a number of qemu-kvm's with similar guests, you can gain a lot of memory by using ksm properly. An unattended host running a variable number of qemu-kvm's needs to tune ksm automatically, since when memory is tight, it's better to spend more cpu on merging pages. In more relaxed cases, it's just a waste of time. The attached service tries to do just that. It monitors how much memory is used by qemu-kvm processes, and starts ksm when a threshold is passed. Ksm usually manages to free up some memory. As long as memory used by qemu is above the defined threshold, ksm tries harder and harder to share memory pages (up to a limit). This may happen if a guest starts working and consumes new memory. If there's enough free memory, ksm cools down. Ksmd service has the usual start/status/stop verbs, and an additional one: signal. One should use that verb just after one starts a new qemu-kvm process or just after such process dies, to let ksm adjust immediately. Comments and suggestion are welcome. Thanks, Dan.

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virt-viewer windows port
by anuj rampal 06 Oct '09

06 Oct '09

Hi all, I have build virt-viewer-0.2.0 for windows. now when I tried to run that "virt-viewer.exe" for the 1st time. it gave me this error: (virt-viewer.exe:8464): Pango-WARNING **: `Z:\usr\i686-pc-mingw32\sys-root\mingw \lib\pango\1.6.0\modules\pango-basic-win32.dll': The specified module could not be found. To solve this I had to rename one of my Disk to Z and the copied the pango-basic-win32.dll at the specified path. now it didnt give me any error. But what happens now is: 1. virt-viewer.exe -c qemu+tcp://192.168.1.106/session 1 ; where 192.168.1.106 is the ip address of my machine where qemu is running and 1 is the id of the VM. 2. A blank screen opens up with "virt-viewer.exe" written on its top and then that program does not responds. Could someone please help me out with this. Thanks in advance Regards Anuj

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[ANNOUNCE] virt-top 1.0.4
by Richard W.M. Jones 05 Oct '09

05 Oct '09

virt-top is the sane replacement for xentop. Virt-top looks and acts like the familiar top(1) command, displays virtual machines, and uses libvirt so it works with just about every virtualization system out there. It also has cool features for sysadmins, like you can use it to log stats into a database or spreadsheet. This version fixes a few long-standing bugs, particularly in the handling of languages other than English. We've also tidied up the source and moved to using git for source control. Home page: http://et.redhat.com/~rjones/virt-top/ Source: http://et.redhat.com/~rjones/virt-top/files/ Repo: http://git.et.redhat.com/?p=virt-top.git;a=summary My blog: http://rwmj.wordpress.com/tag/virt-top/ There's already a build in Fedora 13 which will probably work in earlier versions of Fedora: http://koji.fedoraproject.org/koji/packageinfo?packageID=6211 Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://et.redhat.com/~rjones/virt-df/

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virt-manager and manually created bridges
by Sven Lankes 03 Oct '09

03 Oct '09

My home-server is running rawhide. To get some virtual machines working on it I did: * disable Networkmanager * setup a br0-Device that includes eth0 * disable the libvirt default network virbr0 using virsh net-autostart default --disable When I now try to install a new vm using virt-manager this fails: I'm asked (under advanced options) to choose a network - the only network available ist the (deactivated) virbr0 network. When I then try to proceed anyway I am told that the virbr0 is inactive and would I like to start it. Choosing no doesn't allow me to finish the installation wizard. When I edit an xml definition manually to add the br0-Bridge as network device things work fine. Shouldn't this be possible from within virt-manager? -- sven === jabber/xmpp: sven(a)lankes.net

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Fedora virt status
by Mark McLoughlin 02 Oct '09

02 Oct '09

Fedora 12 ========= The Fedora 12 release is drawing closer and closer. Beta is on its way out the door and release candidate composes will begin in less than four weeks time. Helping Out =========== Here are three ways you could help out with getting F12 into great shape: 1) Test, test, test and file bugs. The more stuff you break, the more will get fixed. Maybe you could even write some test cases; for examples, just take a look at: https://fedoraproject.org/wiki/Test_Day:2009-09-17_Virtualization https://fedoraproject.org/wiki/Test_Day:2009-05-07_Virtualization 2) Follow the action in bugzilla. See this wiki page for how to sign up to receive all bugzilla emails relating to Fedora virtualization: https://fedoraproject.org/wiki/Virtualization_bugs 3) Take a look at some existing bugs and see if you can help out getting them closed. A good place to start is the F12 target list: https://bugzilla.redhat.com/showdependencytree.cgi?id=F12VirtTarget&hide_re… But be warned, you may quickly find yourself becoming a package co-maintainer! :-) Test Day ======== Earlier this month, a dedicated bunch of folks got together on irc for the day to see what they could break: https://fedoraproject.org/wiki/Test_Day:2009-09-17_Virtualization To give you an idea of the success of the day, here's a selection of the bugs reported: https://bugzilla.redhat.com/523953 (mbanas) libvirtd segfault with NIC hot-unplug https://bugzilla.redhat.com/524012 (vbenes) libvirt cannot hot-unplug devices which were not previously hot-plugged https://bugzilla.redhat.com/524022 (vbenes) qemu gets confused with NIC hotplug when no model is specified https://bugzilla.redhat.com/523914 (jdenemar) Mouse does not move in PV Xen guest under RHEL-5.4 https://bugzilla.redhat.com/523941 (jdenemar) kernel 2.6.31-1[24].fc12 doesn't boot in xen PV guest https://bugzilla.redhat.com/523971 (jdenemar) xm save hangs with kernel-2.6.31-14.fc12 running as a PV guest under RHEL-5.4 https://bugzilla.redhat.com/523939 (mrezanin) Save on restored machine failed https://bugzilla.redhat.com/523623 (drjones) grub.conf needs console=hvc0 in kernel command-line when installed as DomU https://bugzilla.redhat.com/524039 (drjones) block device cannot be detached from DomU https://bugzilla.redhat.com/524052 (drjones) Boot hang when installing HVM DomU https://bugzilla.redhat.com/524035 (vbenes) libvirt should support USB device detach https://bugzilla.redhat.com/524045 (vbenes) accessing non existing usb device cause guest to stop https://bugzilla.redhat.com/523158 (santwana) libvirtd segault during virsh restore https://bugzilla.redhat.com/523956 (clalance) Starting libvirtd by hand causes denials https://bugzilla.redhat.com/523970 (jstodola) virsh help output not sorted https://bugzilla.redhat.com/523993 (clalance) KVM Live migration failure with SELinux Enforcing https://bugzilla.redhat.com/524047 (gianluca) virt-viewer outputs nothing if connecting to a non existent VM https://bugzilla.redhat.com/522683 (plambert) USB devices do not mount and are not seen by 12-alpha KVM https://bugzilla.redhat.com/523948 (phan) VM cannot boot from the disk converted by qemu-img https://bugzilla.redhat.com/524229 (santwana) Local migration of kvm guest fails in Fedora12 Alpha https://bugzilla.redhat.com/524268 (santwana) KVM guest fails to start up after virt-snapshot in Fedora12 https://bugzilla.redhat.com/524033 (jstodala) libvirt should check the permissions on all paths before starting qemu https://bugzilla.redhat.com/523960 (mnowak) virtinst saves images where qemu can't access them by default https://bugzilla.redhat.com/517379 (adamw) virt-manager should warn if guest images will are not readable by qemu https://bugzilla.redhat.com/524083 (emcnabb) virt-manager storage "Allocation" field can be set higher than "Max Capacity" https://bugzilla.redhat.com/524085 (emcnabb) Help button on virt-manager "New Storage Volume" page broken https://bugzilla.redhat.com/524109 (lmr) virt-manager: Fails to install guest using ISO file - internal error unable to start guest: qemu: 'iso' invalid format https://bugzilla.redhat.com/524111 (lmr) virt-manager can't hold pointer grab on VMs (VNC mode) https://bugzilla.redhat.com/524117 (lmr) virt-manager: Error installing guests - can't mount the / filesystem after the install process is finished https://bugzilla.redhat.com/524118 (P Rauser) NFS4 connection to virtual guest NFS4 server fails over bridged interface https://bugzilla.redhat.com/524205 (vbenes) virt-manager cloning operations should be cancelable Merging Lists ============= Jon Stanley raised the issue again of whether the fedora-virt and fedora-xen mailing lists should be merged: http://www.redhat.com/archives/fedora-virt/2009-October/thread.html#00000 It looks like we'll do this when the lists switch over to the lists.fedoraproject.org server. virt-dostuff ============ Rich Jones announce another couple of tools in the ever growing libguestfs toolsuite, virt-rescue and virt-edit: http://www.redhat.com/archives/fedora-virt/2009-September/msg00099.html Bugs ==== DOOM-O-METER: 198 bugs open now, 214 open three weeks ago. Progress! The Fedora 12 blocker list is: https://bugzilla.redhat.com/showdependencytree.cgi?id=F12VirtBlocker&hide_r… and the Fedora 12 target list is: https://bugzilla.redhat.com/showdependencytree.cgi?id=F12VirtTarget&hide_re… All these queries can be found on: https://fedoraproject.org/wiki/Virtualization_bugs Ongoing Bugs ============ == kernel == https://bugzilla.redhat.com/526869 Add virtio_blk support cache flush (VIRTIO_BLK_F_FLUSH) Christoph points out that we should make sure F-12 virtio_blk supports cache flushing for future host versions. https://bugzilla.redhat.com/525890 Backport virtio patches for optimised virtio-net Some debate about whether backporting some changes from 2.6.32 virtio_net is worth the risk. https://bugzilla.redhat.com/524508 kvm regression between 2.6.29 and 2.6.30 causes guest to become unresponsive Reporter has confirmed that his KVM hangs are a regression between 2.6.29 and 2.6.30. https://bugzilla.redhat.com/523900 Garbage in KVM guest console when guest runs kernel 2.6.30.5-43.fc11 A video console under KVM regression between 2.6.29 and 2.6.30. https://bugzilla.redhat.com/524808 kernel-2.6.31-33.fc12.x86_64 fail to boot with VT-d enabled and intel_iommu=on https://bugzilla.redhat.com/490477 [Intel IOMMU] Using isochronous DMAR unit on ICH10 board causes _other_ DMAR unit to stop working. David Woodhouse continues fighting away at VT-d bugs. == misc == https://bugzilla.redhat.com/501720 upstart does not launch a login process on /dev/hvc0 in all cases Since virtio_console is undergoing major changes, we've punted this until Fedora 13. https://bugzilla.redhat.com/492082 Re-phrase anaconda's terrifying "uninitialized drive" warning Looks like anaconda devs just want to close this. https://bugzilla.redhat.com/523296 When Qemu/SDL is fullscreen xrandr dual-monitor configuration breaks Looks like SDL's fullscreen support can somehow screw up xrandr configuration. == qemu == https://bugzilla.redhat.com/524734 KVM guest ext3 errors at shutdown when using virtio and a qcow2 backing file An Ubuntu guest on F12 using a qcow2 backing file and virtio sees ext3 errors. https://bugzilla.redhat.com/526381 qcow2 performance bad under i/o load Quite worrying given tha qcow2 performance is an F-12 feature. However, it looks like this may be just that these are compressed qcow2 which are not expected to have good performance. https://bugzilla.redhat.com/526777 Guest PXE booting doesn't work when using ne2k_pci NIC model https://bugzilla.redhat.com/526776 Add rtl8209 to gpxe-roms-qemu Eduardo points out that we're including the wrong PXE ROM for ne2k_pci. This is also true in F-11. https://bugzilla.redhat.com/523312 KVM guest freezes during DesktopBSD 1.7 installation This issue on a Fedora 11 host sounds like it might be storage related. https://bugzilla.redhat.com/523592 qemu-kvm segfault when attaching USB audio device We have a stack trace for this main loop segfault on F11 with USB passthrough. https://bugzilla.redhat.com/524723 Windows XP KVM gets BSOD with HP all-in-one usb device attached An issue with USB passthrough on Fedora 11. https://bugzilla.redhat.com/503156 qemu VNC :: xterm inside VM shows garbled text A patch destined for 0.10.7 that should have fixed this has, in fact, made things worse. == libvirt == https://bugzilla.redhat.com/524732 org.libvirt.manage policy kit denial Tom Horsley is seeing polkit denials with virsh and virt-maanger. https://bugzilla.redhat.com/517157 libvirt fails to start guest on NFS even when sebool virt_use_nfs is on F12 has a fix to handle EOPNOTSUPP from setfilecon() when running on NFS. Need this in F11 too. https://bugzilla.redhat.com/516430 libvirt cannot re-label a disk image under an NTFS partition Looks like a similar issue to the NFS one, except we don't have a virt_use_ntfs sebool. https://bugzilla.redhat.com/524770 'virsh vol-path' command doesn't support "name" parameter https://bugzilla.redhat.com/524776 Describe vol-key vol-path, vol-name commands wrongly in help doc Some of the storage volume commands seem to be quite messed up ever since they were introduced. https://bugzilla.redhat.com/525073 cannot delete storage pool with virsh pool-delete Another issue with virsh's storage commands. https://bugzilla.redhat.com/526769 libvirt logrotate settings should roll over weekly instead of daily libvirt's logrotate settings are proving to be quite annoying, so we're switching it to only roll-over weekly. == virt-manager == https://bugzilla.redhat.com/522823 virt-manager doc screenshots are outdated The Fedora 12 version of virt-manager has a radically different UI, but the help documentation hasn't been updated yet. https://bugzilla.redhat.com/522720 virt-manager cloning a guest with a 3Gib image creates a 23Gib image virt-manager appears to get confused about image sizes when cloning a guest. https://bugzilla.redhat.com/524297 F11 virt-manager doesn't allow KVM memory ballooning Looks like this is fixed in F12, so it's purely a case of whether we should make the effort to fix in F11 too. https://bugzilla.redhat.com/526077 virt-manager toolbar buttons should have tooltips According to the GNOME HIG, all toolbar buttons should have tooltips, especially ones without a label. https://bugzilla.redhat.com/526076 some virt-manager toolbar icons are blurry Eagle eyed Michael Monreal spotted that some of virt-manager's new icons seem to be blurry due to inappropriate scaling. He even included a nice screenshot demonstrating the problem. https://bugzilla.redhat.com/526111 virt-manager add storage volume allows an empty name field Minor problem with virt-manager not checking the volume name text entry for data. https://bugzilla.redhat.com/526488 virt-manager's 'Details' dialog has a poorly placed 'Remove' button https://bugzilla.redhat.com/526491 virt-manager has no confirmation dialog when deleting a virtual disk Matt Booth accidentally deleted a few guest images because of a combination of these bugs. https://bugzilla.redhat.com/526648 virt-maanger's "New VM" window disappears when connection expander is closed Yet another minor virt-manager UI quirklet. == virt-clone == https://bugzilla.redhat.com/524269 virt-clone should demove old udev rules when changing MAC address Could be implemented using libguestfs. == xen == https://bugzilla.redhat.com/523914 Mouse does not move in PV Xen guest under RHEL-5.4 A rather interesting, complex, twisty bug report detailing why xen and evdev have conspired to break the mouse in Fedora 12 Xen guests. https://bugzilla.redhat.com/523489 32-bit rawhide xen kernel spins 100% cpu booting on CentOS 5.2 Dom0 Xen DomU boot failure. Resolved Bugs ============= == misc == https://bugzilla.redhat.com/507397 Directory permissions on volume group directory too restrictive This blocker issue with lvm2 was first fixed by a large change to using udev, but that broken anaconda so it was reverted, and then it was fixed by a much more minor change. == kernel == https://bugzilla.redhat.com/520119 virtio_net page allocation failure Rusty came up with a fix for this in 2.6.31, so we need to backport it to 2.6.30 in Fedora 11. https://bugzilla.redhat.com/524229 Local migration of kvm guest fails in Fedora12 Alpha A PVMMU bug which has been fixed in 2.6.31. https://bugzilla.redhat.com/509383 rotational mode is much faster for virtio-blk disks, but uses non-rotational mode by default Justin has applied Christoph's fix for this in rawhide and F-11. https://bugzilla.redhat.com/512358 Unable to boot using qemu-kvm and gPXE from virt-preview repository This is now fixed in Fedora 11. == qemu == https://bugzilla.redhat.com/524022 qemu's pci_add monitor command should not exit() if the NIC model is not valid Markus fixed this upstream and the patches have now been pulled into F12. https://bugzilla.redhat.com/524695 qemu should print strerror info for disk/kernel/initrd access errors Cole points out that since we're getting a lot of problems with qemu not being able to access files since we made it run as an unprivileged user, we should really fix qemu's error messages. Justin has sent a patch upstream and included it for F12. https://bugzilla.redhat.com/522683 svirt blocks USB passthrough, even with virt_use_usb enabled - /sys/bus/usb/devices Looks like svirt is breaking USB passthrough by blocking access to /sys/bus/usb/devices. Dan Walsh fixed this in rawhide. https://bugzilla.redhat.com/522994 KVM Fedora 11 guest networking fails with latest (2.6.30.5-43) kernel. F-11 qemu-kvm was missing a crucial piece of GSO support which caused networking to break with 2.6.30 guests. This was only a problem for people using qemu-kvm directly from the command line because libvirt wasn't enabling GSO (#526472). Fixed now in updates-testing. https://bugzilla.redhat.com/509532 Move /usr/bin/qemu-kvm into the qemu-kvm package danpb points out that the qemu-kvm package should go away eventually, so we should keep it as an empty meta-package for comps. https://bugzilla.redhat.com/523677 add support for s390x Dan Horák proposed that Ulrich Hecht's patch to add support for s390 to qemu be included in Fedora, but it was decided to just wait for the patch to get upstream. == libvirt == https://bugzilla.redhat.com/524499 libvirt should not enable qemu's audio backend, even with selinux disabled Now that we run qemu as an unprivileged user, we should never enable qemu's sdl/pulse audio backend. A patch to do that from upstream is now in F-12. https://bugzilla.redhat.com/497131 svirt fails to relabel qcow2 backing files This has been fixed by using libvirt's existing image format probing code to determine the backing file and then re-labelling it. Patch has been backported to F-12 now. https://bugzilla.redhat.com/526472 libvirt fails to enable IFF_VNET_HDR on tap fds for qemu-kvm In F-11 libvirt was failing to recognise that qemu had GSO support; fixed by backporting patches to re-work how libvirt probes qemu versions. https://bugzilla.redhat.com/523766 AVCs from libvirtd startup A bunch of SELinux AVCs during libvirtd startup that look like they might be fixed by latest upstream netcf. Fixed by Dan Walsh in latest rawhide. https://bugzilla.redhat.com/517617 libvirt/netcf loads modprobe.conf and others - AVC messages (preventing libvirtd (virtd_t) "getattr" modules_conf_t) More netcf related AVCs which have been fixed. https://bugzilla.redhat.com/520864 libvirt is using untrusted 'info vcpus' PID data for already running VM after libvirtd restart https://bugzilla.redhat.com/465532 RFE: libvirt should support KVM huge page backed memory https://bugzilla.redhat.com/517619 libvirtd should chown dirs when qemu configured to run as root/root All fixed in rawhide by libvirt-0.7.1. == python-virtinst == https://bugzilla.redhat.com/523960 virtinst saves images where qemu can't access them by default Cole has fixed this by making virtinst added qemu to the ACLs for the directories qemu will need access to. https://bugzilla.redhat.com/524109 virt-manager: Fails to install guest using ISO file - internal error unable to start guest: qemu: 'iso' invalid format The fix for bug #517151 introduces another problem; Cole has now fixed that one in rawhide. https://bugzilla.redhat.com/499654 failure to add more than 16 virtio-blk devices in virt-manager https://bugzilla.redhat.com/505317 virtinst: make SLES11 guests use virtio by default https://bugzilla.redhat.com/506319 virtinst errors finding default bridge: upsets virt-manager Various F11 virtinst bugs fixed by python-virtinst-0.400.3-9.fc11. == virt-manager == https://bugzilla.redhat.com/517379 virt-manager should warn if guest images will are not readable by qemu When attaching any storage to a guest we now attempt to verify that the 'qemu' user has search access. If not, we warn the user and offer to fix, using ACLs. The user can opt out, and optionally 'Never ask about this path again" if we have any false positives. https://bugzilla.redhat.com/517664 virt-manager ignores "Host does not support any virtualization options" error Cole has made this error condition a bit more obvious to the user. https://bugzilla.redhat.com/522823 virt-manager doc screenshots are outdated The help docs are so woefully out of date, Cole has just disabled them for now. https://bugzilla.redhat.com/502777 virt-manager does not recalculate free disk space on new VM creation While the 'New VM' dialog is up, virt-manager now polls every 3 seconds to check the available disk space on the host.

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Re: [fedora-virt] virt-preview updates
by Gianluca Cecchi 02 Oct '09

02 Oct '09

On Thu, 01 Oct 2009 21:59:01 +0100 Mark McLoughlin wrote: > == virt-manager == > > * Tue Sep 29 2009 Cole Robinson <crobinso redhat com> - 0.8.0-6.fc12 > - Fix VCPU hotplug Hello, any info on about what would have been fixed? And also provided functionality itself.... In my env with 0.8.0-6 and f11 with virt-preview it seems I cannot hotplug/unplug at all a cpu.... In details window of a rh 5.3 vm with 2 vCPUs, I cannot raise the number (current is equal to maximum), while I can lower but I get that the effect will be visible at next reboot..... Or do I have to create a new VM with this peculiar version of virt-manager to see different behaviour? Gianluca

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merging lists?
by Jon Stanley 01 Oct '09

01 Oct '09

I'm working on migrating Fedora lists from RHT infrastructure to Fedora infrastructure in the coming little bit. The question that I had was does fedora-xen and fedora-virt both need to exist? I'm subscribed to both, and certainly the conversations on each are different, but could they be merged? As of several months ago, the subscriber count of fedora-xen was WAY higher than that of fedora-virt, this doesn't seem to make much sense since Xen is not The Way Forward(TM), at least from what I can see. I guess the question is could we merge the two lists, and have one less to migrate, or are both really needed?

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using kqemu with fedora-virt-preview repo
by Gianluca Cecchi 01 Oct '09

01 Oct '09

I have a powerful server but without VT capabilities, where I would like to use virt-manager tools as of fedora-virt-preview repo and speed up somehow things using kqemu. It seems that kqemu support is not compiled in for this repo, correct? Instead, as the kqemu kernel module is in rpmfusion, I presume that the stock f11 qemu has this support built in.... Am I wrong? Any problems to compile kqemu support ? On another server, tried to rebuild qemu-0.11.0-2.fc11.src.rpm (from fedora-virt) after installing kqemu from rpmfusion. But while if I take the source I get kqemu as enabled in configure script, in rpmbuild I don't get so. I notice that inside the qemu tar.gz as provided by the source.rpm there are three lines below in the top configure script: if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then kqemu="yes" audio_possible_drivers="$audio_possible_drivers fmod" kvm="yes" kqemu="no" So I commented out the kqemu="no" line... and built the package (not touching the other two configure scripts that seems related to kvm...) After installing, if I run qem-kvm or qemu without kqemu all is ok. Instead, running [root@tekkaman bin]# ./qemu --enable-kqemu I get Not enough memory (requested_size = 16777216, max memory = 146800640) Aborted Any hints? For Kqemu now gplv2, are there any barriers to have it included in fedora directly? Thanks in advance, Gianluca

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virt October 2009