June 2011 - Users - libvirt List Archives

[libvirt-users] converting save/dump output into physical memory image
by Andrew Tappert 04 Jun '12

04 Jun '12

A lot of people in the security community, myself included, are interested in memory forensics these days. Virtualization is a natural fit with memory forensics because it allows one to get access to a guest's memory without having to introduce any extra software into the guest or otherwise interfere with it. Incident responders are particularly interested in getting memory dumps from systems they're investigating. Virsh has "save" and "dump" commands for storing the state of a guest to a file on disk, but memory of KVM guests doesn't get saved in the "standard" input format for memory forensics tools, which is a raw physical memory image. (This is what you'd get via the classical "dd /dev/mem" approach or the contemporary equivalent using the crash driver; and VMware Server and Workstation produce .vmem files, which are such raw physical memory images, when a guest is paused or snapshotted.) In order to analyze the memory of Libvirt/KVM guests with my Linux memory forensics software, Second Look, I've created a tool for converting Libvirt-QEMU-save files (output of virsh save command) or QEMU-savevm files (output of virsh dump command) to raw physical memory images. I've got a basic working capability, though I'm still tracking down some problems with a guest allocated 8GB RAM--not all the memory seems to be present in the save or dump file. And I haven't tested very extensively yet, version support is limited to what I myself am currently running, etc. I'd like to know if this is a capability that others are interested in. Is this something that would be of interest to the Libvirt project if I were to contribute the code, or to the KVM project, or do you think it best exists as a separate project? I've also got a proof-of-concept tool for converting hibernate images to raw physical memory images. Perhaps a collection of tools for converting various memory dump formats would be a good project. Anyone else interested in this kind of stuff? As an author of commercial memory forensics software I've got a vested interest in availability of good memory acquisition capabilities. But there are a number of people working on FOSS Linux memory analysis tools, too... Andrew

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[libvirt-users] small webGUI?
by Stefan G. Weichinger 28 Jul '11

28 Jul '11

Greetings, at a customer we run a single VM for a specific application. Unfortunately this VM does not start automatically with the host although I checked the relevant box within virtual machine manager. I assume upgrading libvirt might help (we run 0.8.7-r1 right now, gentoo linux). Aside from that it would be good to have a simple WebGUI for the users to let them press START just in case. They run Windows on their machines so I can't give them VMM ... Could you point me at the most simple GUI to do that? I'd prefer something very lightweight without too much requirements (for example I'd like to avoid installing mysql for that ;-) ). Thank you, Stefan

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[libvirt-users] Is libvirt supported on Citrix Xenserver?
by G Naresh Kumar 21 Jul '11

21 Jul '11

Hi, Is libvirt supported on Citrix Xenserver. I have been searching for the same with little/no luck. If supported, can you point to some links/documents which can help me try out the same. Thanks, Naresh

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[libvirt-users] Compatibility with Parallels Virtouzo
by Andreas Mauf 12 Jul '11

12 Jul '11

Hi, will libvirt work with the commercial parallels virtuozzo, too? Cause the linux version of virtuozzo is based on openvz, which ist supported by libvirt. Does someone have some experencies with that? Thanks for any feedback, Andreas -- SysEleven GmbH Rosenthaler Str. 34/35 10178 Berlin Firmensitz: Berlin Registergericht: AG Berlin Charlottenburg, HRB 108571 B Geschäftsführer: Marc Korthaus

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[libvirt-users] ANNOUNCE: oz 0.5.0 release
by Chris Lalancette 30 Jun '11

30 Jun '11

All, I'm pleased to announce release 0.5.0 of Oz. Oz is a program for doing automated installation of guest operating systems with limited input from the user. Release 0.5.0 is a bugfix and feature release for Oz. Some of the highlights between Oz 0.4.0 and 0.5.0 are: - Replace icicle-nc binary with a shell script to try various methods. Besides being more portable, this also allows us to convert Oz to a noarch RPM (thanks to Padraig Brady) - Support for Ubuntu 6.06 - Support for md5sum/sha1sum/sha256sum checking of ISOs after download - New -x flag for oz-install to write the libvirt XML file to a user-specified location (thanks to Steve Dake) - Support for OpenSUSE customization - Support for F-15 customization (thanks to Steve Dake) - Support for running commands at the end of package installation (thanks to Steve Dake) Fedora 14 and RHEL-6 packages are available for this release. Note that to install the RHEL-6 packages, you must be running RHEL-6.1 or later. Instructions of how to get and use Oz are available at http://aeolusproject.org/oz.html If you have any questions or comments about Oz, please feel free to contact aeolus-devel(a)lists.fedorahosted.org or me (clalance(a)redhat.com) directly. -- Chris Lalancette

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[libvirt-users] vnc over ssh failing
by Pete Ashdown 30 Jun '11

30 Jun '11

I'm using virt-manager 0.8.6 client side on Ubuntu 11.04. I can't get vnc over ssh to work to a kvm guest running on a Ubuntu 10.04 host. kvmhost:~> virsh vncdisplay testing :0 kvmhost:~> telnet 127.0.0.1 5900 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. RFB 003.008 Client virt-manager debug: 2011-06-24 11:28:56,055 (console:923): Starting connect process for proto=vnc trans=tcp connhost=192.168.1.10 connuser=pashdown connport=None gaddr=127.0.0.1 gport=5900 gsocket=None 2011-06-24 11:28:56,120 (console:810): Viewer disconnected I can reach the console with: xtightvncviewer -via 192.168.1.10 127.0.0.1:0 Any suggestions are appreciated.

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[libvirt-users] ANNOUNCE: libvirt Perl bindings Sys::Virt 0.2.8 release
by Daniel P. Berrange 30 Jun '11

30 Jun '11

I am happy to announce a new release[1] of the libvirt Perl bindings, Sys::Virt 0.2.8 is available for download: http://search.cpan.org/CPAN/authors/id/D/DA/DANBERR/Sys-Virt-0.2.8.tar.gz Changes in this release - Add all new APIs in libvirt 0.9.0 - Add examples for different ways of using stream APIs to download/upload storage volumes - Requires libvirt >= 0.9.0 The permanent link for the Sys::Virt package, where all historic releases can be found, is http://search.cpan.org/dist/Sys-Virt/ Thanks to everyone who contributed to this release through testing, bug reporting, patch submission, etc Regards, Daniel [1] Yes, 2 releases in 2 days. I'm playing catchup with main libvirt releases and instead of going straight to latest one (0.9.2), I'm releasing Perl bindings for the 2 intermediate releases since those are needed in various distros. Guess what to expect tomorrow.... -- |: 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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[libvirt-users] ANNOUNCE: libvirt Perl bindings Sys::Virt 0.2.7 release
by Daniel P. Berrange 29 Jun '11

29 Jun '11

I am happy to announce a new release of the libvirt Perl bindings, Sys::Virt 0.2.7 is available for download: http://search.cpan.org/CPAN/authors/id/D/DA/DANBERR/Sys-Virt-0.2.7.tar.gz Changes in this release - Honour flags parameter when dumping XML - Use thread local error APIs exclusively - Fix bogus extra URI parameter in migrate_to_uri function - Implement all virStream APIs in Sys::Virt::Stream - Impement virDomainGetSysinfo binding - Call virInitialize when loading module - Add all missing error constants - Update example RPM spec to match Fedora - Requires libvirt >= 0.8.8 The permanent link for the Sys::Virt package, where all historic releases can be found, is http://search.cpan.org/dist/Sys-Virt/ Thanks to everyone who contributed to this release through testing, bug reporting, patch submission, etc 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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[libvirt-users] Starting libvirtd cuts off host access to external network
by PLD 24 Jun '11

24 Jun '11

I've spent some hours on this without success - any help greatly appreciated. I've just done a new RHEL6 setup, with a KVM guest (first time). The basic installation works fine until I start libvirtd; at this point, the host machine loses access to the external network: step 1: ping from host to network works; external machine on network can ping both eth0 and br1 on the host step 2: /sbin/service libvirtd start step 3: ping from host to network fails; external machine on the network can't ping either eth0 or br1 on the host Stopping libvirtd (/sbin/service libvirtd stop) makes no difference - the network remains unreachable. Any idea why this would happen? I have installed a kvm guest, using the default network script at /etc/libvirtd/qemu/networks/default.xml (although I've changed the IP addresses to be on my subnet, and the DHCP server returns only one address). I have also configured a bridge; I've attached ifcfg-eth0, ifcfg-eth1, and ifcfg-br1 below. I haven't changed any iptables configuration. If I run the guest (also RHEL6) the guest can talk to the host, but it can't see the outside world. Thanks - Paul ================================================ ifcfg-eth0: ----------- NM_CONTROLLED="no" DEVICE="eth0" HWADDR=00:16:E6:8A:C7:20 ONBOOT=yes TYPE=Ethernet DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" NETMASK=255.255.255.0 BOOTPROTO=dhcp ifcfg-eth1: ----------- NM_CONTROLLED="no" DEVICE="eth1" HWADDR=00:16:E6:8A:C7:21 ONBOOT=yes TYPE=Ethernet DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth1" BRIDGE=br1 NETMASK=255.255.255.0 ifcfg-br1: ---------- NM_CONTROLLED="no" DEVICE=br1 BOOTPROTO=dhcp ONBOOT=yes TYPE=Bridge DELAY=0

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Re: [libvirt-users] libvirt-users Digest, Vol 18, Issue 17
by m m 20 Jun '11

20 Jun '11

Yes, I also think that iptables module should be loaded before libvirt-bin and I have seen a post which regarded loading conntrack modules and these modules also seem to be necessary... I know a little about Upstart in Ubuntu. However, I still don't know how to properly solve this problem. ip_tables module depend on other modules being loaded and since I don't know the full list of modules which should be loaded (for IP tables to work) I don't know how to handle that. Besides, even if I had this list, it could change for some time, so it is not a good idea to rely on that. Version which I have installed is the newest release from Ubuntu repositories. Thank you for help. I will be grateful for any further suggestions. 2011/6/13 <libvirt-users-request(a)redhat.com> > Send libvirt-users mailing list submissions to > libvirt-users(a)redhat.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users > or, via email, send a message with subject or body 'help' to > libvirt-users-request(a)redhat.com > > You can reach the person managing the list at > libvirt-users-owner(a)redhat.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of libvirt-users digest..." > > > Today's Topics: > > 1. Re: libvirt-bin MOSTLY fails to create default virtual > network (Laine Stump) > 2. Boot delay (Jeff) > 3. e: How to disconnect the ISO image using virsh (Jeff) > 4. Difference between function Migrate and Migrate2 (Abhishek Gupta) > 5. Re: Boot delay (Michal Privoznik) > 6. hook scripts - not in Ubuntu packages? (Whit Blauvelt) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 12 Jun 2011 12:03:17 -0400 > From: Laine Stump <laine(a)laine.org> > To: libvirt-users(a)redhat.com > Subject: Re: [libvirt-users] libvirt-bin MOSTLY fails to create > default virtual network > Message-ID: <4DF4E345.7060104(a)laine.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 06/06/2011 03:24 PM, m m wrote: > > I have observed 3 scenarios after I reboot the host with 2 guests > > (which are supposed to autostart after boot/reboot of the host): > > 1. Default network is created but I can not ping guests. Gests don't > > have assigned IP address or they both have IP address 192.168.122.100. > > 2. Default network is not created. > > 3. Default netork is properly created and everything works fine. > > In each case guests are started and they work properly. Cases 1. and > > 2. happen a lot more often then case 3. > > > > My solutions: > > - When I restart libvirt-bin then everything is fine. > > - When I set 'sleep 40' in 'pre-start' section of > > /etc/init/libvirt-bin.conf and modify 'start on' section in the > > following way: > > > > start on (runlevel [2345] and net-device-up IFACE=br0) > > > > then everything works fine. > > > > > > However, none of the above solutions indeed solves the problem. > > Please, let me know if there is solution to this problem or what are > > your suggestions regarding this issue. > > > > **** > > HOST$ uname -a > > Linux ras 2.6.32-32-server #62-Ubuntu SMP Wed Apr 20 22:07:43 UTC 2011 > > x86_64 GNU/Linux > > > > GUEST1 and GUEST2 > > $ uname -a > > Linux server1-desktop 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 > > 21:54:21 UTC 2011 i686 GNU/Linux > > > > HOST$ libvirtd --version > > libvirtd (libvirt) 0.7.5 > > > > My idea was that some kernel modules sometimes are loaded before > > libvirt-bin starts, and sometimes libvirt-bin starts earlier, or in > > the middle of loading of these modules, that is why 3 scenarios can be > > observed. > > That is why I have added: > > cp /proc/modules /home/wsadmin2/modules1 > > cp /proc/modules /home/wsadmin2/modules2 > > to 'pre-start' and 'post-start' parts respectively of > > /etc/init/libvirt-bin.conf. > > > > Of course, beween execution of > > - pre-start part > > - exec /usr/sbin/libvirtd -d > > - post-start part > > other kernel modules can be loaded, so we can not be sure which > > additional modules in file 'modules2' were indeed loaded before > > libvirtd was actually started. > > > > Here are my observations: > > Scenatio 1. > > 33 (fixed) modules were logged - call them BASE MODULES. > > > > Scenatio 2. > > Beside BASE MODULES + the following modules were loaded: > > > > > iptable_filter 1841 0 - Live 0xffffffffa007c000 > > > ip_tables 18201 1 iptable_filter, Live 0xffffffffa0172000 > > > x_tables 22361 1 ip_tables, Live 0xffffffffa0164000 > > In your "scenario 1" the modules necessary for iptables to function > haven't been loaded. Each virtual network requires a set of iptables > rules to function properly, and if there is no iptables, the rules can't > be added and network creation fails. Your libvirtd.log confirms that > problem: > > 10:06:06.980: error : networkAddIptablesRules:750 : failed to add > iptables rule to allow DHCP requests from 'virbr0': Invalid argument > > > 0.7.5 is quite old (> 1 year), is there perhaps a newer pre-built > version of libvirt available for your release of Ubuntu? > > It seems that Ubuntu's method of starting up libvirtd (at least on your > machine) is missing a dependency to force iptables to be loaded before > libvirtd starts. I'm unfamiliar with Ubuntu/debian startup stuff > (upstart, I guess), but that's where you need to look for the solution. > > I found the following in the ubuntu bug database, which seems similar, > but not identical (basically the system networking isn't completely > ready by the time the autostart domains are brought up): > > https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/495394 > > > > > Scenatio 3. > > Beside BASE MODULES + the following modules were loaded: > > > > $ diff modules1 modules2 > > 1c1,6 > > < iptable_filter 1841 0 - Live 0xffffffffa008b000 > > --- > > > xt_state 1490 14 - Live 0xffffffffa01ab000 > > > xt_tcpudp 2667 12 - Live 0xffffffffa01a5000 > > > nf_conntrack_ipv4 12742 14 - Live 0xffffffffa019b000 > > > nf_conntrack 73326 2 xt_state,nf_conntrack_ipv4, Live > 0xffffffffa017d000 > > conntrack is used by iptables. I haven't tried it, but wouldn't be > surprised if adding rules that required conntrack failed if it hadn't > been loaded, or something like that. > > > > nf_defrag_ipv4 1481 1 nf_conntrack_ipv4, Live 0xffffffffa0177000 > > > iptable_filter 1841 1 - Live 0xffffffffa008b000 > > 3c8 > > < x_tables 22361 1 ip_tables, Live 0xffffffffa0162000 > > --- > > > x_tables 22361 3 xt_state,xt_tcpudp,ip_tables, Live 0xffffffffa0162000 > > > > Other observations: > > Scenatio 1. > > No errors in libvirtd.log > > Scenario 2. > > > > 10:06:06.980: error : networkAddIptablesRules:750 : failed to add > > iptables rule to allow DHCP requests from 'virbr0': Invalid argument > > (...) > > 10:06:08.630: error : qemudNetworkIfaceConnect:1445 : Failed to add > > tap interface to bridge 'virbr0': No such device > > 10:06:08.630: error : qemuAutostartDomain:584 : Failed to autostart VM > > 'cluster_server1': Failed to add tap interface to bridge 'virbr0': No > > such device > > > > 10:06:08.921: info : qemudDispatchSignalEvent:390 : Received > > unexpected signal 17 > > 10:06:08.927: debug : virExecWithHook:617 : LC_ALL=C /usr/bin/kvm -help > > 10:06:08.938: info : qemudDispatchSignalEvent:390 : Received > > unexpected signal 17 > > 10:06:09.000: error : qemudNetworkIfaceConnect:1445 : Failed to add > > tap interface to bridge 'virbr0': No such device > > 10:06:09.000: error : qemuAutostartDomain:584 : Failed to autostart VM > > 'cluster_server2': Failed to add tap interface to bridge 'virbr0': No > > such device > > (...) > > Scenatio 3. > > No errors in libvirtd.log > > > > > > I didn't see any valuable logs in /var/log/boot.log, > > /var/log/messages, /var/log/syslog. Please let me know if you want to > > see them anyway or have any suggestions right away. > > > > > > _______________________________________________ > > libvirt-users mailing list > > libvirt-users(a)redhat.com > > https://www.redhat.com/mailman/listinfo/libvirt-users > > > > ------------------------------ > > Message: 2 > Date: Mon, 13 Jun 2011 08:25:00 -0500 > From: Jeff <jwk1230(a)gmail.com> > To: libvirt-users(a)redhat.com > Subject: [libvirt-users] Boot delay > Message-ID: <4609858C-FB73-4E8A-B81B-3EDCBB83B755(a)gmail.com> > Content-Type: text/plain; charset=us-ascii > > Is there a method of tweaking the boot sequence of a KVM instance so that > you can delay the process for X number of seconds? I don't have enough time > between starting the KVM and connecting via VNC. > > Thanks > > Jeff > > > > ------------------------------ > > Message: 3 > Date: Fri, 10 Jun 2011 15:12:36 -0500 > From: Jeff <jwk1230(a)gmail.com> > To: Osier Yang <jyang(a)redhat.com>, libvirt-users(a)redhat.com > Subject: [libvirt-users] e: How to disconnect the ISO image using > virsh > Message-ID: <F301FBCE-65F1-411A-980E-EF8B6A46241B(a)gmail.com> > Content-Type: text/plain; charset="utf-8" > > I am trying to detach an ISO from a KVM machine and I've tried both > attach-disk using " " in the file path as well as the update-device option > but am getting this error > > error: Failed to update device from /var/run/libvirt/qemu/kvmtest1.xml > error: XML description for unknown device type is not well formed or > invalid. > > I tried doing a virsh edit on the xml file to remove the source file path > to the ISO, as I assume is the correct method, and then running the virsh > update-device but it's not working. > > Can anyone advise the correct steps to detach a device from a running > and/or offline domain? > > Additionally - anyone have any guidance on how to attach a CD device to a > domain that is currently shutdown, for example, if I wanted to boot the > domain to a rescue CD image? > > Thanks > > Jeff > > > ? 2011?03?31? 15:17, Masanari Iida ??: > Somebody sent me a tips. > Following command do what I wanted to do. > Thanks. > > attach-disk guest01 " " hdc --driver file --type cdrom > --mode readonly > Also using "update-device" with an xml which doesn't specify > the source file path will work. > > On Thu, Mar 31, 2011 at 3:29 PM, Masanari Iida<standby24x7 gmail com> > wrote: > Hello, > > I can attach disc ISO image to cd-rom from virsh. > And I can replace the ISO image from disc1 to disc2 using the 2nd example. > > (example) > attach-disk guest01 /root/disc1.iso hdc --driver file --type cdrom > --mode readonly > attach-disk guest01 /root/disc2.iso hdc --driver file --type cdrom > --mode readonly > > My question is, how can I disconnect the image from the cdrom drive using > virsh. > Because, if I try to detach-disk hdc, I got following errors. > > virsh # detach-disk guest01 hdc > error: Failed to detach disk > error: this function is not supported by the connection driver: > This type of device cannot be hot unplugged > > What I can do is possible from virt-manager's "Disconnect" button, > (next to source path: line) from Hardware's TAB, Disk hdc screen. > I want to do this from virsh. > > OS: RHEL5.6 > libvirt-0.8.2-15.el5_6.1 is used. > > Regards, > Masanari Iida > > _______________________________________________ > libvirt-users mailing list > libvirt-users redhat com > https://www.redhat.com/mailman/listinfo/libvirt-users > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110610/f4acfe4c… > > > > ------------------------------ > > Message: 4 > Date: Sat, 11 Jun 2011 06:39:46 +0530 > From: Abhishek Gupta <cs1090174(a)cse.iitd.ernet.in> > To: libvirt-users(a)redhat.com > Subject: [libvirt-users] Difference between function Migrate and > Migrate2 > Message-ID: <BANLkTinv6XiRMz=rS88A-U-b2Hz3SVTesg(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I was reading the API reference for the libvirt, when I came across > the function? virDomainMigrate and virDomainMigrate2. I am unable to > find the difference between the two. Can someone please tell the > difference in the application of the two? > > -- > Abhishek > > > > ------------------------------ > > Message: 5 > Date: Mon, 13 Jun 2011 17:21:02 +0200 > From: Michal Privoznik <mprivozn(a)redhat.com> > To: Jeff <jwk1230(a)gmail.com> > Cc: libvirt-users(a)redhat.com > Subject: Re: [libvirt-users] Boot delay > Message-ID: <4DF62ADE.60209(a)redhat.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On 13.06.2011 15:25, Jeff wrote: > > Is there a method of tweaking the boot sequence of a KVM instance so that > you can delay the process for X number of seconds? I don't have enough time > between starting the KVM and connecting via VNC. > > > You might consider using virt-viewer. It simply waits for domain to > boot, if it is down. > > Your other option is to create hook script: > http://libvirt.org/hooks.html > and put conditional sleep there, because libvirt just before running a > domain tries to execute qemu with some arguments (e.g. -help) to qeury > its capabilities. And you don't want your hook script to delay that. > > So you need something like this: > > if [ $2 == "start" ]; then > sleep 5 > fi > > > Thanks > > > > Jeff > > > > _______________________________________________ > > libvirt-users mailing list > > libvirt-users(a)redhat.com > > https://www.redhat.com/mailman/listinfo/libvirt-users > > Michal > > > > ------------------------------ > > Message: 6 > Date: Mon, 13 Jun 2011 11:42:44 -0400 > From: Whit Blauvelt <whit.virt(a)transpect.com> > To: libvirt-users(a)redhat.com > Subject: [libvirt-users] hook scripts - not in Ubuntu packages? > Message-ID: <20110613154244.GA28777(a)black.transpect.com> > Content-Type: text/plain; charset=us-ascii > > On Mon, Jun 13, 2011 at 05:21:02PM +0200, Michal Privoznik wrote: > > > Your other option is to create hook script: > > http://libvirt.org/hooks.html > > That looks useful. > > On several Ubuntu systems, with Ubuntu libvirt 0.8.8 and 0.8.3 packages > installed, there's no libvirt/hooks/ directory at all. Is this a directory > that can simply be created and used under libvirt, or does using this > feature on Ubuntu require custom installation? > > Thanks, > Whit > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 18, Issue 17 > ********************************************* >

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[libvirt-users] Bypass USB to Xen VM
by Lorenzo Milesi 20 Jun '11

20 Jun '11

Hi. I'm trying to bypass an USB device from the host to a paravirtualized Xen VM. I found this page: http://libvirt.org/formatdomain.html#elementsUSB which says how to bypass usb and pci devices to guests. It says that works on KVM only, but is that notice about PCI or about ALL? Anyway I tried both from virt-manager and from virsh edit domain by adding the following: <hostdev mode='subsystem' type='usb'> <source> <vendor id='0x03f0'/> <product id='0x0114'/> </source> </hostdev> but the edit is ignored, right after I save, if I do a dumpxml the "hostdev" stanza is not present. Why? Any other way to bypass? usbip? thanks

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[libvirt-users] Display port allocation
by Tom Hughes 20 Jun '11

20 Jun '11

The automatic port allocation algorithm for displays in libvirt seems to assume that it is the only thing that will be allocating ports in the normal VNC range starting at port 5900. My host is running vino to export it's display, which has bound itself to port 5900, yet libvirt is still trying to use port 5900 for both VNC and Spice displays if I leave it in auto allocation mode. I thought that this used to work in F14 but having just tried it again it looks like I may have been mistaken. Certainly it doesn't seem to work properly in F15 either with the standard libvirt or with the virt-preview one. Tom -- Tom Hughes (tom(a)compton.nu) http://compton.nu/

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Re: [libvirt-users] virsh slow on execution
by Lorenzo Milesi 18 Jun '11

18 Jun '11

> Also, when I start a VM via OCF, while guest is booting the command > virsh domstate mydom > returns "no state". This makes PaceMaker believe the resource is not > running and continuously stops and restart the machine. I've let a shell open with virsh domstate mydom active in loop, and it seems that it returns the correct state one time once very much requests! Say over 20 requests, only one or two says "idle" or "running", all the others return "no state". I'd like to know why virsh fails so many times returning correct state... thanks

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[libvirt-users] virsh slow on execution
by Lorenzo Milesi 18 Jun '11

18 Jun '11

Hi. I've set up a Debian6+Xen4+libvirt0.9 server. VMs are going to be managed by PaceMaker with VirtualDomain primitive. As found on some mailing list I've set export VIRSH_DEFAULT_CONNECT_URI="xen:///" in root's .bashrc, but when I run virsh commands, it takes up to 10s to get the result! Is this normal? At some point today I had issues connecting to libvirt, and in this case it was responding fast, less than couple of seconds. Also, when I start a VM via OCF, while guest is booting the command virsh domstate mydom returns "no state". This makes PaceMaker believe the resource is not running and continuously stops and restart the machine. How can I speed up virsh output? Thanks

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[libvirt-users] Problems migrating xen domains
by Lorenzo Milesi 18 Jun '11

18 Jun '11

Hi. I've set up a cluster with two Debian 6 nodes, running Xen 4 and libvirt 0.9 (from backports). My VMs run over a DRBD resource, to allow live migration between the nodes. I've successfully tried live migration using xm migrate, now I'd like to make it work using virsh, but cannot make it. Here's the error I'm getting: # virsh migrate efw xen+ssh://10.22.22.152/ error: POST operation failed: xend_post: error from xen daemon: (xend.err "can't connect: (-2, 'Name or service not known')") As said, xm migrate worked at first, so xend should be set up correctly. I've done several searches but with no luck. What could be the problem? thanks Relevant configs: # cat /etc/xen/xend-config.sxp |grep -v ^#|grep -v ^$ (xend-http-server yes) (xend-unix-server yes) (xend-relocation-server yes) (xend-port 8000) (xend-relocation-port 8002) (vif-script vif-bridge) (dom0-min-mem 196) (enable-dom0-ballooning yes) (total_available_memory 0) (dom0-cpus 0) (vncpasswd '') # env|grep VIRSH_DEFAULT_CONNECT_URI VIRSH_DEFAULT_CONNECT_URI=xen:/// root@xensrv01:~# virsh version Compiled against library: libvir 0.9.0 Using library: libvir 0.9.0 Using API: Xen 3.0.1 Running hypervisor: Xen 4.0.0

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[libvirt-users] basic network setup
by Jerry Worley 17 Jun '11

17 Jun '11

I am setting up a network with 2 guests, each on different subnets. The physical machine has 2 NICS, one on each subnet. I want the physical and guest machines to have IP addresses with no NAT, in their respective subnets, and then I want a separate subnet where the 2 guests can connect directly to each other. Can somebody explain conceptually the best way to use physical adapters, bridges, virtual bridges, virtual networks to accomplish this.

1 0

[libvirt-users] Virsh Console - Changes in guest
by Abhishek Gupta 16 Jun '11

16 Jun '11

Hello Virsh Console was not working on my setup. (also it required ctrl + shift + ] instead of ctrl+alt+] for interrupt) But after I create a file /etc/init/ttyS0.conf # ttyS0 - getty # # This service maintains a getty on ttyS0 from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[2345] stop on runlevel [!2345] respawn exec /sbin/getty -L 38400 ttyS0 vt102 Reload libvirt-bin, and restart the vm the console starts working. Is there any other way of doing this without the need of changing the guest files and independent of guest OS? I am using libvirt version 0.8.8. -- Abhishek abhishekgupta92.info

1 0

[libvirt-users] 2 virsh consoles on the same hypervisor causes conflicts
by David Lane 16 Jun '11

16 Jun '11

Anyone encountered this? Anyone have a solution? Seeing it in Fedora15 with KVM If 2 consoles are opened to the same guest from the hypervisor they will interfere with each other. keystrokes are lost and returned information is displayed on either virsh console instances randomly. Both consoles are rendered unusable. Thanks, DAVID

3 2

[libvirt-users] Virtual switches support (Openvswitch, VDE,...)
by Jérémie Tarot 16 Jun '11

16 Jun '11

Hi, IIR/UC there have been a couple of discussions lately about possible evolution of libvirt's network management features to eventually support more kinds of virtual networking technologies like Openvswitch, VDE,... Could a kind and informed soul keep us on touch with progress in the field ? Thank you very much in advance PS: I wish this will be available before/for 1.0 release...

2 2

Re: [libvirt-users] [Qemu-devel] Qcow2
by Stefan Hajnoczi 16 Jun '11

16 Jun '11

On Wed, May 18, 2011 at 5:18 PM, <arun.sasi1(a)wipro.com> wrote: > Hello Stefan, > > > > Thank you very much for considering my issue... > > > > Here is My problem... > > > > 1) I have 4 VM`s Running on Base server. > > 2) Base server is having 15GB RAM. > > 3) I can start all VM`s apart from my file server. > > 4) File server is having OS image and 1.2TB QCOW2 Image. > > 5) When I remove 1.2TB from xml file (vdb.img) I can start my server but > Data partition is null becase I have not added 1.2TB in XML. > > 6) Command I am using virsh start <Domain> > > 7) Even through virt-manager also I am not able to start the VM. Attached is > the error message Unfortunately the message gives no details: "libvirtError: internal error unable to start guest:" > 8) Keep on trying adding and removing and defining the XML after 2 Hrs I am > able to start. What did you change that made it work? > 9) Operating system Ubuntu 9.04 > > 10) I have 3 location file server having the same issue… even all file > servers are same configuration… Libvirt keeps log files for each VM under /var/log/libvirt/qemu/<domain>.log. You might find more detailed error information in that file and it will at least contain the qemu-kvm command-line used to launch the domain. Please take a look at that file and post the lines surrounding the error, especially the "starting up" log line. Have you verified that the .qcow2 image file is accessible, ownership and permissions should be the same as the image files of your other domains. Stefan > -----Original Message----- > From: Stefan Hajnoczi [mailto:stefanha@linux.vnet.ibm.com] > Sent: Wednesday, May 18, 2011 9:28 PM > To: Arun Sasi V (WI01 - Manage IT) > Subject: Re: Qcow2 > > > > On Wed, May 18, 2011 at 07:30:05PM +0530, arun.sasi1(a)wipro.com wrote: > >> The Guest VM which is larger example 1.2TB is not starting after the > >> base server reboot... Pleae help what needs to be do in this situation. > > > > You have not provided information on what is happening. Are you getting > > an error message during boot from the 1.2TB guest? Is the 1.2TB guest > > even being autostarted (use "virsh autostart <domain>" to enable > > autostart on a domain)? > > > > Please send support questions like this to qemu-devel(a)nongnu.org in the > > future. That way other people in the QEMU community can help too. > > > > Stefan > > Please do not print this email unless it is absolutely necessary. > > The information contained in this electronic message and any attachments to > this message are intended for the exclusive use of the addressee(s) and may > contain proprietary, confidential or privileged information. If you are not > the intended recipient, you should not disseminate, distribute or copy this > e-mail. Please notify the sender immediately and destroy all copies of this > message and any attachments. > > WARNING: Computer viruses can be transmitted via email. The recipient should > check this email and any attachments for the presence of viruses. The > company accepts no liability for any damage caused by any virus transmitted > by this email. > > www.wipro.com

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[libvirt-users] libvir: QEMU error : cannot set ownership
by Ali Shoker 16 Jun '11

16 Jun '11

Hello everybody, I installed eucalyptus on ubuntu10, basic configuration . Everything is ok untill I start the instances, the disk is being created but it terminates soon. Environment: NFS , KVM, ubuntu10 x64, Euca on 2 machines (wc sc cc clc on one machine, and nc on another). libvirtd (libvirt) 0.7.5 QEMU PC emulator version 0.12.3 (qemu-kvm-0.12.3), Copyright (c) 2003-2008 Fabrice Bellard. Logs: /var/log/eucalyptus/nc.log: [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] doStartNetwork() invoked [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] StartNetwork(): SUCCESS return from vnetStartNetwork 0 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] StartNetwork(): done [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] doRunInstance() invoked (id=i-4C9D08C3 cores=2 disk=10 memory=512) [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] image=emi-DDBD105C at http://10.1.1.2:8773/services/Walrus/image-store-1308215076/image.manifest.… [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] krnel=eki-F41F10E3 at http://10.1.1.2:8773/services/Walrus/image-store-1308215076/kernel.manifest… [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] rmdsk=eri-08841148 at http://10.1.1.2:8773/services/Walrus/image-store-1308215076/ramdisk.manifes… [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] vlan=10 priMAC=d0:0d:4C:9D:08:C3 pubMAC=d0:0d:4C:9D:08:C3 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] network started for instance i-4C9D08C3 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] retrieving images for instance i-4C9D08C3 (disk limit=10240MB)... [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] verifying cached file in /var/lib/eucalyptus/instances//eucalyptus/cache/eki-F41F10E3/kernel... [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] walrus_request(): downloading /tmp/walrus-digest-3D4AKY [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] from http://10.1.1.2:8773/services/Walrus/image-store-1308215076/kernel.manifest… [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] walrus_request(): writing GET output to /tmp/walrus-digest-3D4AKY [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] walrus_request(): wrote 3479 bytes in 3 writes [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] walrus_request(): saved image in /tmp/walrus-digest-3D4AKY [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] vrun(): [cp -a /var/lib/eucalyptus/instances//eucalyptus/cache/eki-F41F10E3/kernel /var/lib/eucalyptus/instances//admin/i-4C9D08C3/ker nel] [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] verifying cached file in /var/lib/eucalyptus/instances//eucalyptus/cache/eri-08841148/ramdisk... [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] walrus_request(): downloading /tmp/walrus-digest-sVEVa4 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] from http://10.1.1.2:8773/services/Walrus/image-store-1308215076/ramdisk.manifes… [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] walrus_request(): writing GET output to /tmp/walrus-digest-sVEVa4 [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] walrus_request(): wrote 3482 bytes in 3 writes [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] walrus_request(): saved image in /tmp/walrus-digest-sVEVa4 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] vrun(): [cp -a /var/lib/eucalyptus/instances//eucalyptus/cache/eri-08841148/ramdisk /var/lib/eucalyptus/instances//admin/i-4C9D08C3/ramdisk] [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] verifying cached file in /var/lib/eucalyptus/instances//eucalyptus/cache/emi-DDBD105C/disk... [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] walrus_request(): downloading /tmp/walrus-digest-RQEzI9 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] from http://10.1.1.2:8773/services/Walrus/image-store-1308215076/image.manifest.… [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] walrus_request(): writing GET output to /tmp/walrus-digest-RQEzI9 [Thu Jun 16 03:54:31 2011][003755][EUCADEBUG ] walrus_request(): wrote 5887 bytes in 5 writes [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] walrus_request(): saved image in /tmp/walrus-digest-RQEzI9 [Thu Jun 16 03:54:31 2011][003755][EUCAINFO ] vrun(): [cp -a /var/lib/eucalyptus/instances//eucalyptus/cache/emi-DDBD105C/disk /var/lib/eucalyptus/instances//admin/i-4C9D08C3/disk] [Thu Jun 16 03:54:32 2011][003755][EUCAINFO ] vrun(): [//usr/lib/eucalyptus/euca_rootwrap //usr/share/eucalyptus/partition2disk /var/lib/eucalyptus/instances//admin/i-4C9D08C3/disk 512 8280] [Thu Jun 16 03:54:37 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:54:37 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:54:43 2011][003755][EUCAINFO ] preparing images for instance i-4C9D08C3... [Thu Jun 16 03:54:43 2011][003755][EUCAINFO ] adding key/tmp/sckey.uUHVTI to the root file system at /var/lib/eucalyptus/instances//admin/i-4C9D08C3/disk using (//usr/lib/eucalyptus/euca_rootwrap //usr/share/eucalyptus/add_key.pl//usr/lib/eucalyptus/euca_mountwrap) [Thu Jun 16 03:54:43 2011][003755][EUCAINFO ] vrun(): [//usr/lib/eucalyptus/euca_rootwrap //usr/share/eucalyptus/add_key.pl//usr/lib/eucalyptus/euca_mountwrap 32256 /var/lib/eucalyptus/instances//admin/i-4C9D08C3/disk /tmp/sckey.uUHVTI] [Thu Jun 16 03:54:43 2011][003755][EUCADEBUG ] system_output(): [//usr/lib/eucalyptus/euca_rootwrap //usr/share/eucalyptus/gen_kvm_libvirt_xml --ramdisk --ephemeral] [Thu Jun 16 03:54:43 2011][003755][EUCAINFO ] currently running/booting: i-4C9D08C3 [Thu Jun 16 03:54:43 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:54:43 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:54:49 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:54:49 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:54:55 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:54:55 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:55:01 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:55:01 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:55:07 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:55:07 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:55:13 2011][003755][EUCAERROR ] libvirt: monitor socket did not show up.: No such file or directory (code=38) [Thu Jun 16 03:55:13 2011][003755][EUCAFATAL ] hypervisor failed to start domain [Thu Jun 16 03:55:13 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:55:13 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:55:15 2011][003755][EUCAERROR ] libvirt: Domain not found: no domain with matching name 'i-4C9D08C3' (code=42) [Thu Jun 16 03:55:15 2011][003755][EUCAINFO ] vrun(): [rm -rf /var/lib/eucalyptus/instances//admin/i-4C9D08C3/] [Thu Jun 16 03:55:15 2011][003755][EUCAINFO ] stopping the network (vlan=10) [Thu Jun 16 03:55:19 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:55:19 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:55:25 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:55:25 2011][003755][EUCADEBUG ] doDescribeInstances() invoked [Thu Jun 16 03:55:26 2011][003755][EUCAINFO ] doTerminateInstance() invoked (id=i-4C9D08C3) [Thu Jun 16 03:55:26 2011][003755][EUCAERROR ] libvirt: Domain not found: no domain with matching name 'i-4C9D08C3' (code=42) [Thu Jun 16 03:55:26 2011][003755][EUCAWARN ] warning: domain i-4C9D08C3 to be terminated not running on hypervisor [Thu Jun 16 03:55:31 2011][003755][EUCADEBUG ] doDescribeResource() invoked [Thu Jun 16 03:55:31 2011][003755][EUCADEBUG ] doDescribeInstances() invoked /var/log/libvirt/qemu/i-4C9D08C3.log: LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 512 -smp 2 -name i-3D4B085B -uuid 68e17542-66cb-0240-81f5-d71c935e5a5e -nographic -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/i-3D4B085B.monitor,server,nowait -monitor chardev:monitor -boot c -kernel /var/lib/eucalyptus/instances//admin/i-3D4B085B/kernel -initrd /var/lib/eucalyptus/instances//admin/i-3D4B085B/ramdisk -append root=/dev/sda1 console=ttyS0 -drive file=/var/lib/eucalyptus/instances//admin/i-3D4B085B/disk,if=scsi,index=0,boot=on,format=raw -net nic,macaddr=d0:0d:3d:4b:08:5b,vlan=0,model=e1000,name=e1000.0 -net tap,fd=44,vlan=0,name=tap.0 -chardev file,id=serial0,path=/var/lib/eucalyptus/instances//admin/i-3D4B085B/console.log -serial chardev:serial0 -parallel none -usb libvir: QEMU error : cannot set ownership on /var/lib/eucalyptus/instances//admin/i-3D4B085B/kernel: Permission denied more info: qemu user/group is eucalyptus/root I noticed that soem process (libvirt or qemu) is changing the ownership before termination: Before and after: 1. ll /var/lib/eucalyptus/instances//admin/i-3D4B085B/ 2. total 715912K 3. -rw-r--r-- 1 eucalyptus eucalyptus 10767826944 2011-06-16 04:01 disk 4. -rw------- 1 eucalyptus eucalyptus 571064 2011-06-16 04:01 instance-checkpoint 5. -rw-r--r-- 1 eucalyptus eucalyptus 4159008 2011-06-16 03:09 kernel 6. -rw-r--r-- 1 eucalyptus eucalyptus 933 2011-06-16 04:01 libvirt.xml 7. -rw-r--r-- 1 eucalyptus eucalyptus 3899035 2011-06-16 03:09 ramdisk 8. 9. ll /var/lib/eucalyptus/instances//admin/i-3D4B085B/ 10. total 715912K 11. -rw-r--r-- 1 root root 10767826944 2011-06-16 04:01 disk 12. -rw------- 1 eucalyptus eucalyptus 571064 2011-06-16 04:01 instance-checkpoint 13. -rw-r--r-- 1 root root 4159008 2011-06-16 03:09 kernel 14. -rw-r--r-- 1 eucalyptus eucalyptus 933 2011-06-16 04:01 libvirt.xml 15. -rw-r--r-- 1 root root 3899035 2011-06-16 03:09 ramdisk additional info: ls -al /var/lib/eucalyptus total 24K drwxr-xr-x 5 eucalyptus eucalyptus 4096 2011-06-16 03:34 . drwxr-xr-x 43 root root 4096 2011-06-16 02:29 .. -rw------- 1 eucalyptus eucalyptus 16 2011-06-16 03:34 .bash_history drwx------ 2 eucalyptus eucalyptus 4096 2011-06-16 02:52 .cache lrwxrwxrwx 1 eucalyptus eucalyptus 14 2011-06-16 02:49 instances -> /mnt/instances drwx------ 2 eucalyptus eucalyptus 4096 2011-06-16 02:52 keys drwxr-xr-x 2 eucalyptus root 4096 2011-06-16 02:43 .ssh ls -al /mnt/instances total 16K drwxrwxrwx 4 eucalyptus eucalyptus 4096 2011-06-16 03:09 . drwxr-xr-x 5 eucalyptus eucalyptus 4096 2011-06-16 02:25 .. drwxr-xr-x 2 eucalyptus eucalyptus 4096 2011-06-16 04:02 admin drwxr-xr-x 3 eucalyptus eucalyptus 4096 2011-06-16 03:09 eucalyptus Is there any solution to this problem? A workaround also works. Thanks Best, Ali

1 0

[libvirt-users] request to add an application the app listing on libvirt site
by Ohad Levy 14 Jun '11

14 Jun '11

Hi, I would like to add two apps which uses libvirt the site. Ruby Objects for libvirt based on top of the native ruby binding, Virt ruby gem exposes real objects such as Host, Guest, StoragePool, Interface etc. more info at https://github.com/ohadlevy/virt Foreman - Web UI for provisioning and managing servers Among the many things foreman can do, It provides to relevant parts to libvirt: UI to list / start / stop / destroy vms UI to create a new vm as part of the provisioning process (e.g. dhcp, dns, tftp, pxe, vm, ks/preseed, puppet etc) more info at http://theforeman.org Thanks! Ohad

3 3

[libvirt-users] Difference between function Migrate and Migrate2
by Abhishek Gupta 13 Jun '11

13 Jun '11

I was reading the API reference for the libvirt, when I came across the function virDomainMigrate and virDomainMigrate2. I am unable to find the difference between the two. Can someone please tell the difference in the application of the two? -- Abhishek

2 1

[libvirt-users] Boot delay
by Jeff 13 Jun '11

13 Jun '11

Is there a method of tweaking the boot sequence of a KVM instance so that you can delay the process for X number of seconds? I don't have enough time between starting the KVM and connecting via VNC. Thanks Jeff

3 4

[libvirt-users] libvirt-bin MOSTLY fails to create default virtual network
by m m 12 Jun '11

12 Jun '11

I have observed 3 scenarios after I reboot the host with 2 guests (which are supposed to autostart after boot/reboot of the host): 1. Default network is created but I can not ping guests. Gests don't have assigned IP address or they both have IP address 192.168.122.100. 2. Default network is not created. 3. Default netork is properly created and everything works fine. In each case guests are started and they work properly. Cases 1. and 2. happen a lot more often then case 3. My solutions: - When I restart libvirt-bin then everything is fine. - When I set 'sleep 40' in 'pre-start' section of /etc/init/libvirt-bin.conf and modify 'start on' section in the following way: start on (runlevel [2345] and net-device-up IFACE=br0) then everything works fine. However, none of the above solutions indeed solves the problem. Please, let me know if there is solution to this problem or what are your suggestions regarding this issue. **** HOST$ uname -a Linux ras 2.6.32-32-server #62-Ubuntu SMP Wed Apr 20 22:07:43 UTC 2011 x86_64 GNU/Linux GUEST1 and GUEST2 $ uname -a Linux server1-desktop 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 21:54:21 UTC 2011 i686 GNU/Linux HOST$ libvirtd --version libvirtd (libvirt) 0.7.5 My idea was that some kernel modules sometimes are loaded before libvirt-bin starts, and sometimes libvirt-bin starts earlier, or in the middle of loading of these modules, that is why 3 scenarios can be observed. That is why I have added: cp /proc/modules /home/wsadmin2/modules1 cp /proc/modules /home/wsadmin2/modules2 to 'pre-start' and 'post-start' parts respectively of /etc/init/libvirt-bin.conf. Of course, beween execution of - pre-start part - exec /usr/sbin/libvirtd -d - post-start part other kernel modules can be loaded, so we can not be sure which additional modules in file 'modules2' were indeed loaded before libvirtd was actually started. Here are my observations: Scenatio 1. 33 (fixed) modules were logged - call them BASE MODULES. Scenatio 2. Beside BASE MODULES + the following modules were loaded: > iptable_filter 1841 0 - Live 0xffffffffa007c000 > ip_tables 18201 1 iptable_filter, Live 0xffffffffa0172000 > x_tables 22361 1 ip_tables, Live 0xffffffffa0164000 Scenatio 3. Beside BASE MODULES + the following modules were loaded: $ diff modules1 modules2 1c1,6 < iptable_filter 1841 0 - Live 0xffffffffa008b000 --- > xt_state 1490 14 - Live 0xffffffffa01ab000 > xt_tcpudp 2667 12 - Live 0xffffffffa01a5000 > nf_conntrack_ipv4 12742 14 - Live 0xffffffffa019b000 > nf_conntrack 73326 2 xt_state,nf_conntrack_ipv4, Live 0xffffffffa017d000 > nf_defrag_ipv4 1481 1 nf_conntrack_ipv4, Live 0xffffffffa0177000 > iptable_filter 1841 1 - Live 0xffffffffa008b000 3c8 < x_tables 22361 1 ip_tables, Live 0xffffffffa0162000 --- > x_tables 22361 3 xt_state,xt_tcpudp,ip_tables, Live 0xffffffffa0162000 Other observations: Scenatio 1. No errors in libvirtd.log Scenario 2. 10:06:06.980: error : networkAddIptablesRules:750 : failed to add iptables rule to allow DHCP requests from 'virbr0': Invalid argument (...) 10:06:08.630: error : qemudNetworkIfaceConnect:1445 : Failed to add tap interface to bridge 'virbr0': No such device 10:06:08.630: error : qemuAutostartDomain:584 : Failed to autostart VM 'cluster_server1': Failed to add tap interface to bridge 'virbr0': No such device 10:06:08.921: info : qemudDispatchSignalEvent:390 : Received unexpected signal 17 10:06:08.927: debug : virExecWithHook:617 : LC_ALL=C /usr/bin/kvm -help 10:06:08.938: info : qemudDispatchSignalEvent:390 : Received unexpected signal 17 10:06:09.000: error : qemudNetworkIfaceConnect:1445 : Failed to add tap interface to bridge 'virbr0': No such device 10:06:09.000: error : qemuAutostartDomain:584 : Failed to autostart VM 'cluster_server2': Failed to add tap interface to bridge 'virbr0': No such device (...) Scenatio 3. No errors in libvirtd.log I didn't see any valuable logs in /var/log/boot.log, /var/log/messages, /var/log/syslog. Please let me know if you want to see them anyway or have any suggestions right away.

2 1

[libvirt-users] e: How to disconnect the ISO image using virsh
by Jeff 10 Jun '11

10 Jun '11

I am trying to detach an ISO from a KVM machine and I've tried both attach-disk using " " in the file path as well as the update-device option but am getting this error error: Failed to update device from /var/run/libvirt/qemu/kvmtest1.xml error: XML description for unknown device type is not well formed or invalid. I tried doing a virsh edit on the xml file to remove the source file path to the ISO, as I assume is the correct method, and then running the virsh update-device but it's not working. Can anyone advise the correct steps to detach a device from a running and/or offline domain? Additionally - anyone have any guidance on how to attach a CD device to a domain that is currently shutdown, for example, if I wanted to boot the domain to a rescue CD image? Thanks Jeff 于 2011年03月31日 15:17, Masanari Iida 写道: Somebody sent me a tips. Following command do what I wanted to do. Thanks. attach-disk guest01 " " hdc --driver file --type cdrom --mode readonly Also using "update-device" with an xml which doesn't specify the source file path will work. On Thu, Mar 31, 2011 at 3:29 PM, Masanari Iida<standby24x7 gmail com> wrote: Hello, I can attach disc ISO image to cd-rom from virsh. And I can replace the ISO image from disc1 to disc2 using the 2nd example. (example) attach-disk guest01 /root/disc1.iso hdc --driver file --type cdrom --mode readonly attach-disk guest01 /root/disc2.iso hdc --driver file --type cdrom --mode readonly My question is, how can I disconnect the image from the cdrom drive using virsh. Because, if I try to detach-disk hdc, I got following errors. virsh # detach-disk guest01 hdc error: Failed to detach disk error: this function is not supported by the connection driver: This type of device cannot be hot unplugged What I can do is possible from virt-manager's "Disconnect" button, (next to source path: line) from Hardware's TAB, Disk hdc screen. I want to do this from virsh. OS: RHEL5.6 libvirt-0.8.2-15.el5_6.1 is used. Regards, Masanari Iida _______________________________________________ libvirt-users mailing list libvirt-users redhat com https://www.redhat.com/mailman/listinfo/libvirt-users

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[libvirt-users] stuck after upgrade
by Julian Cerruti 10 Jun '11

10 Jun '11

Hi all, We're completely stuck helpless with our CentOS system which we've been using as a VM server. After an unanticipated system upgrade, we can't get virsh or virt-manager to connect to libvirt anymore. It gets completely stuck during startup, trying to connect. One of the suspicious things we've seen is the following: [root@ana libvirt]# netstat | grep /var/run/libvirt/libvirt-sock unix 3 [ ] STREAM CONNECTING 0 /var/run/libvirt/libvirt-sock unix 3 [ ] STREAM CONNECTING 0 /var/run/libvirt/libvirt-sock unix 3 [ ] STREAM CONNECTING 0 /var/run/libvirt/libvirt-sock unix 3 [ ] STREAM CONNECTING 0 /var/run/libvirt/libvirt-sock unix 3 [ ] STREAM CONNECTING 0 /var/run/libvirt/libvirt-sock .... I'm not adding more information here because there is so much we've tried that I wouldn't know where to start. I would be happy to provide any info that would be useful to solve this issue. Any hint or help would be greatly appreciated. Thanks! Julian

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Re: [libvirt-users] libvirt-users Digest, Vol 18, Issue 11
by m m 10 Jun '11

10 Jun '11

I have attached all the logs (/var/log/dmesg, /var/log/libvirtd.log, /var/log/messages, /var/log/syslog, /var/log/boot.log and info about loaded modules /proc/modules) regarding scenatios1,2,3 (please see the README file for simple explanation what is there). By the way, I have installed only dnsmasq-bin (and not dnsmasq). Have a nice day 2011/6/8 <libvirt-users-request(a)redhat.com> > Send libvirt-users mailing list submissions to > libvirt-users(a)redhat.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users > or, via email, send a message with subject or body 'help' to > libvirt-users-request(a)redhat.com > > You can reach the person managing the list at > libvirt-users-owner(a)redhat.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of libvirt-users digest..." > > > Today's Topics: > > 1. Re: libvirt-users Digest, Vol 18, Issue 7(libvirt-bin MOSTLY > fails to create default virtual network) (m m) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 8 Jun 2011 08:28:19 -0500 > From: m m <bk.praca(a)gmail.com> > To: libvirt-users(a)redhat.com > Subject: Re: [libvirt-users] libvirt-users Digest, Vol 18, Issue > 7(libvirt-bin MOSTLY fails to create default virtual network) > Message-ID: <BANLkTikt49i78OJfzBgufoesv3C-Pjrdjw(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > I have attached all the logs (/var/log/dmesg, /var/log/libvirtd.log, > /var/log/messages, /var/log/syslog, /var/log/boot.log and info about loaded > modules /proc/modules) regarding scenatios1,2,3 (please see the README file > for simple explanation what is there). By the way, I have installed only > dnsmasq-bin (and not dnsmasq). > Have a nice day > > 2011/6/6 <libvirt-users-request(a)redhat.com> > > > Send libvirt-users mailing list submissions to > > libvirt-users(a)redhat.com > > > > To subscribe or unsubscribe via the World Wide Web, visit > > https://www.redhat.com/mailman/listinfo/libvirt-users > > or, via email, send a message with subject or body 'help' to > > libvirt-users-request(a)redhat.com > > > > You can reach the person managing the list at > > libvirt-users-owner(a)redhat.com > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of libvirt-users digest..." > > > > > > Today's Topics: > > > > 1. libvirt-bin MOSTLY fails to create default virtual network (m > > m) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Mon, 6 Jun 2011 14:24:04 -0500 > > From: m m <bk.praca(a)gmail.com> > > To: libvirt-users(a)redhat.com > > Subject: [libvirt-users] libvirt-bin MOSTLY fails to create default > > virtual network > > Message-ID: <BANLkTinrE80HURSwJUUv28_v9HB9mRxNNw(a)mail.gmail.com> > > Content-Type: text/plain; charset="iso-8859-1" > > > > I have observed 3 scenarios after I reboot the host with 2 guests (which > > are > > supposed to autostart after boot/reboot of the host): > > 1. Default network is created but I can not ping guests. Gests don't have > > assigned IP address or they both have IP address 192.168.122.100. > > 2. Default network is not created. > > 3. Default netork is properly created and everything works fine. > > In each case guests are started and they work properly. Cases 1. and 2. > > happen a lot more often then case 3. > > > > My solutions: > > - When I restart libvirt-bin then everything is fine. > > - When I set 'sleep 40' in 'pre-start' section of > > /etc/init/libvirt-bin.conf > > and modify 'start on' section in the following way: > > > > start on (runlevel [2345] and net-device-up IFACE=br0) > > > > then everything works fine. > > > > > > However, none of the above solutions indeed solves the problem. Please, > let > > me know if there is solution to this problem or what are your suggestions > > regarding this issue. > > > > **** > > HOST$ uname -a > > Linux ras 2.6.32-32-server #62-Ubuntu SMP Wed Apr 20 22:07:43 UTC 2011 > > x86_64 GNU/Linux > > > > GUEST1 and GUEST2 > > $ uname -a > > Linux server1-desktop 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 > 21:54:21 > > UTC 2011 i686 GNU/Linux > > > > HOST$ libvirtd --version > > libvirtd (libvirt) 0.7.5 > > > > My idea was that some kernel modules sometimes are loaded before > > libvirt-bin > > starts, and sometimes libvirt-bin starts earlier, or in the middle of > > loading of these modules, that is why 3 scenarios can be observed. > > That is why I have added: > > cp /proc/modules /home/wsadmin2/modules1 > > cp /proc/modules /home/wsadmin2/modules2 > > to 'pre-start' and 'post-start' parts respectively of > > /etc/init/libvirt-bin.conf. > > > > Of course, beween execution of > > - pre-start part > > - exec /usr/sbin/libvirtd -d > > - post-start part > > other kernel modules can be loaded, so we can not be sure which > additional > > modules in file 'modules2' were indeed loaded before libvirtd was > actually > > started. > > > > Here are my observations: > > Scenatio 1. > > 33 (fixed) modules were logged - call them BASE MODULES. > > > > Scenatio 2. > > Beside BASE MODULES + the following modules were loaded: > > > > > iptable_filter 1841 0 - Live 0xffffffffa007c000 > > > ip_tables 18201 1 iptable_filter, Live 0xffffffffa0172000 > > > x_tables 22361 1 ip_tables, Live 0xffffffffa0164000 > > > > Scenatio 3. > > Beside BASE MODULES + the following modules were loaded: > > > > $ diff modules1 modules2 > > 1c1,6 > > < iptable_filter 1841 0 - Live 0xffffffffa008b000 > > --- > > > xt_state 1490 14 - Live 0xffffffffa01ab000 > > > xt_tcpudp 2667 12 - Live 0xffffffffa01a5000 > > > nf_conntrack_ipv4 12742 14 - Live 0xffffffffa019b000 > > > nf_conntrack 73326 2 xt_state,nf_conntrack_ipv4, Live > 0xffffffffa017d000 > > > nf_defrag_ipv4 1481 1 nf_conntrack_ipv4, Live 0xffffffffa0177000 > > > iptable_filter 1841 1 - Live 0xffffffffa008b000 > > 3c8 > > < x_tables 22361 1 ip_tables, Live 0xffffffffa0162000 > > --- > > > x_tables 22361 3 xt_state,xt_tcpudp,ip_tables, Live 0xffffffffa0162000 > > > > Other observations: > > Scenatio 1. > > No errors in libvirtd.log > > Scenario 2. > > > > 10:06:06.980: error : networkAddIptablesRules:750 : failed to add > iptables > > rule to allow DHCP requests from 'virbr0': Invalid argument > > (...) > > 10:06:08.630: error : qemudNetworkIfaceConnect:1445 : Failed to add tap > > interface to bridge 'virbr0': No such device > > 10:06:08.630: error : qemuAutostartDomain:584 : Failed to autostart VM > > 'cluster_server1': Failed to add tap interface to bridge 'virbr0': No > such > > device > > > > 10:06:08.921: info : qemudDispatchSignalEvent:390 : Received unexpected > > signal 17 > > 10:06:08.927: debug : virExecWithHook:617 : LC_ALL=C /usr/bin/kvm -help > > 10:06:08.938: info : qemudDispatchSignalEvent:390 : Received unexpected > > signal 17 > > 10:06:09.000: error : qemudNetworkIfaceConnect:1445 : Failed to add tap > > interface to bridge 'virbr0': No such device > > 10:06:09.000: error : qemuAutostartDomain:584 : Failed to autostart VM > > 'cluster_server2': Failed to add tap interface to bridge 'virbr0': No > such > > device > > (...) > > Scenatio 3. > > No errors in libvirtd.log > > > > > > I didn't see any valuable logs in /var/log/boot.log, /var/log/messages, > > /var/log/syslog. Please let me know if you want to see them anyway or > have > > any suggestions right away. > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: < > > > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: scenario1 > > Type: application/octet-stream > > Size: 19317 bytes > > Desc: not available > > URL: < > > > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: scenario2 > > Type: application/octet-stream > > Size: 8294 bytes > > Desc: not available > > URL: < > > > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: scenario3 > > Type: application/octet-stream > > Size: 2366 bytes > > Desc: not available > > URL: < > > > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: libvirt-bin.conf > > Type: application/octet-stream > > Size: 924 bytes > > Desc: not available > > URL: < > > > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > > > > > ------------------------------ > > > > _______________________________________________ > > libvirt-users mailing list > > libvirt-users(a)redhat.com > > https://www.redhat.com/mailman/listinfo/libvirt-users > > > > End of libvirt-users Digest, Vol 18, Issue 7 > > ******************************************** > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110608/625b332f… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: LucidClusterStack.rar > Type: application/rar > Size: 4473008 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110608/625b332f… > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 18, Issue 11 > ********************************************* >

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Re: [libvirt-users] Resizing ext4 fedora qemu guest
by Richard W.M. Jones 10 Jun '11

10 Jun '11

Original message: https://www.redhat.com/archives/libvirt-users/2011-June/msg00017.html Best to post libguestfs and virt-tools questions on one of these two mailing lists: http://www.redhat.com/mailman/listinfo/libguestfs https://www.redhat.com/mailman/listinfo/virt-tools-list The answer is: yes, virt-resize understands ext4. I can't really say more since you don't say what virt-resize command line you are actually using. But if I were a gambling man, I'd say it's because you've forgotten: --lv-expand /dev/vg_custserv/lv_home (or whichever filesystem you want to resize). If that's not the problem, please post a full description of what you're trying to do, including the virt-resize command, the full output of the command, and the output of 'virt-filesystems --all --long' before and after the resize. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.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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[libvirt-users] Shared Folders
by Guilherme Santos 09 Jun '11

09 Jun '11

Good afternoon. I am having trouble trying to set up shared folders in the guest VM using VirtualBox hypervisor. No matter what configuration is defined in my XML, it never works, I mean, no shared folder is added/specifyed, then, inside the guest, when I try to mount the folder, I always get a protocol error. If I use VirtualBoxManage, I can add/specify shared folders easily and mount it with no problem. I need to use libvirt in order to deal, in a generalized way, with the process of creating shared folders in all hypervisors supported by libvirt, otherwise my problem would be solved already. I must not use specific commands of a certain hypervisor (such as VirtualBoxManage's). How does libvirt allow me to set up shared folders? Does it use VirtualBoxManage for VBox hypervisors? If so, how do I use it? I've read the documentation and followed it in defining my XMLs. Thanks anyway! -- Guilherme Santos G. Baptista Undergraduate in Computer Science at UFCG LSD - Distributed Systems Laboratory

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[libvirt-users] old, deleted LUN still showing up after a virsh pool-refresh
by Tom Georgoulias 09 Jun '11

09 Jun '11

Today I upgraded one of our KVM physical host servers to Centos 5.6. The other server remains on Centos 5.5. I've configured a storage pool in libvirt to use LUNs from an iscsi storage system as the volumes for each VM. After the upgrade, I decommisioned one of the VMs and removed the LUN from the storage system. Normally after this kind of operation, I simply need to run this command and the server will see that the LUN no longer exists and remove the volume. # virsh pool-refresh --pool=dev-kvm-storage Pool dev-kvm-storage refreshed This works fine on the centos 5.5 host, but the centos 5.6 still lists the old lun in the vol-list and displays zeros for the capacity. # virsh vol-info 7.0.0.26 --pool=dev-kvm-storage Name: 7.0.0.26 Type: block Capacity: 0.00 Allocation: 0.00 Do I need to do something different now for the newer version of libvirt that is included with centos 5.6? Here are the kernel and libvirt versions I'm using: Centos 5.6: kernel-2.6.18-238.9.1.el5 libvirt-0.8.2-15.el5_6.4 Centos 5.5: kernel-2.6.18-194.26.1.el5 libvirt-0.6.3-33.el5_5.3 Any help is greatly appreciated.

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[libvirt-users] ANNOUNCE: oz 0.4.0 release
by Chris Lalancette 08 Jun '11

08 Jun '11

All, I'm pleased to announce release 0.4.0 of Oz. Oz is a program for doing automated installation of guest operating systems with limited input from the user. Release 0.4.0 is a bugfix and feature release for Oz. Some of the highlights between Oz 0.3.0 and 0.4.0 are: - Automatic detection/use of cached JEOS images (the previous method required the user of the oz libraries to detect whether the image was cached or not) - Fixes to make Debian installs work for both x86_64 and i386 - Honor user-provided automatic installation files better, by not doing modifications - Use pyparted to generate partitions on newly created disks (if necessary) - Add support for Fedora 15 - Add the ability to supply an initial root/Administrator password to the diskimage - Abort installs after 5 minutes of disk inactivity - Use M2Crypto to generate SSH keys (if necessary) - Some pydoc documentation (more of this to come in the future) - Support for Ubuntu 11.04 - Support for RHEL-6.1 More documentation on Oz (including links on how to obtain it) is available here: http://aeolusproject.org/oz.html For this release, Fedora 14 and RHEL-6 packages are available. Note that I have stopped providing Fedora 13 packages, since that distribution is (or will be) out of support. Also note that to install the RHEL-6 packages, you must be running RHEL-6.1 or later. If you have any questions or comments about Oz, please feel free to contact aeolus-devel(a)lists.fedorahosted.org or me (clalance(a)redhat.com) directly. Thanks, -- Chris Lalancette

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Re: [libvirt-users] libvirt-users Digest, Vol 18, Issue 7(libvirt-bin MOSTLY fails to create default virtual network)
by m m 08 Jun '11

08 Jun '11

I have attached all the logs (/var/log/dmesg, /var/log/libvirtd.log, /var/log/messages, /var/log/syslog, /var/log/boot.log and info about loaded modules /proc/modules) regarding scenatios1,2,3 (please see the README file for simple explanation what is there). By the way, I have installed only dnsmasq-bin (and not dnsmasq). Have a nice day 2011/6/6 <libvirt-users-request(a)redhat.com> > Send libvirt-users mailing list submissions to > libvirt-users(a)redhat.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users > or, via email, send a message with subject or body 'help' to > libvirt-users-request(a)redhat.com > > You can reach the person managing the list at > libvirt-users-owner(a)redhat.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of libvirt-users digest..." > > > Today's Topics: > > 1. libvirt-bin MOSTLY fails to create default virtual network (m > m) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 6 Jun 2011 14:24:04 -0500 > From: m m <bk.praca(a)gmail.com> > To: libvirt-users(a)redhat.com > Subject: [libvirt-users] libvirt-bin MOSTLY fails to create default > virtual network > Message-ID: <BANLkTinrE80HURSwJUUv28_v9HB9mRxNNw(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > I have observed 3 scenarios after I reboot the host with 2 guests (which > are > supposed to autostart after boot/reboot of the host): > 1. Default network is created but I can not ping guests. Gests don't have > assigned IP address or they both have IP address 192.168.122.100. > 2. Default network is not created. > 3. Default netork is properly created and everything works fine. > In each case guests are started and they work properly. Cases 1. and 2. > happen a lot more often then case 3. > > My solutions: > - When I restart libvirt-bin then everything is fine. > - When I set 'sleep 40' in 'pre-start' section of > /etc/init/libvirt-bin.conf > and modify 'start on' section in the following way: > > start on (runlevel [2345] and net-device-up IFACE=br0) > > then everything works fine. > > > However, none of the above solutions indeed solves the problem. Please, let > me know if there is solution to this problem or what are your suggestions > regarding this issue. > > **** > HOST$ uname -a > Linux ras 2.6.32-32-server #62-Ubuntu SMP Wed Apr 20 22:07:43 UTC 2011 > x86_64 GNU/Linux > > GUEST1 and GUEST2 > $ uname -a > Linux server1-desktop 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 21:54:21 > UTC 2011 i686 GNU/Linux > > HOST$ libvirtd --version > libvirtd (libvirt) 0.7.5 > > My idea was that some kernel modules sometimes are loaded before > libvirt-bin > starts, and sometimes libvirt-bin starts earlier, or in the middle of > loading of these modules, that is why 3 scenarios can be observed. > That is why I have added: > cp /proc/modules /home/wsadmin2/modules1 > cp /proc/modules /home/wsadmin2/modules2 > to 'pre-start' and 'post-start' parts respectively of > /etc/init/libvirt-bin.conf. > > Of course, beween execution of > - pre-start part > - exec /usr/sbin/libvirtd -d > - post-start part > other kernel modules can be loaded, so we can not be sure which additional > modules in file 'modules2' were indeed loaded before libvirtd was actually > started. > > Here are my observations: > Scenatio 1. > 33 (fixed) modules were logged - call them BASE MODULES. > > Scenatio 2. > Beside BASE MODULES + the following modules were loaded: > > > iptable_filter 1841 0 - Live 0xffffffffa007c000 > > ip_tables 18201 1 iptable_filter, Live 0xffffffffa0172000 > > x_tables 22361 1 ip_tables, Live 0xffffffffa0164000 > > Scenatio 3. > Beside BASE MODULES + the following modules were loaded: > > $ diff modules1 modules2 > 1c1,6 > < iptable_filter 1841 0 - Live 0xffffffffa008b000 > --- > > xt_state 1490 14 - Live 0xffffffffa01ab000 > > xt_tcpudp 2667 12 - Live 0xffffffffa01a5000 > > nf_conntrack_ipv4 12742 14 - Live 0xffffffffa019b000 > > nf_conntrack 73326 2 xt_state,nf_conntrack_ipv4, Live 0xffffffffa017d000 > > nf_defrag_ipv4 1481 1 nf_conntrack_ipv4, Live 0xffffffffa0177000 > > iptable_filter 1841 1 - Live 0xffffffffa008b000 > 3c8 > < x_tables 22361 1 ip_tables, Live 0xffffffffa0162000 > --- > > x_tables 22361 3 xt_state,xt_tcpudp,ip_tables, Live 0xffffffffa0162000 > > Other observations: > Scenatio 1. > No errors in libvirtd.log > Scenario 2. > > 10:06:06.980: error : networkAddIptablesRules:750 : failed to add iptables > rule to allow DHCP requests from 'virbr0': Invalid argument > (...) > 10:06:08.630: error : qemudNetworkIfaceConnect:1445 : Failed to add tap > interface to bridge 'virbr0': No such device > 10:06:08.630: error : qemuAutostartDomain:584 : Failed to autostart VM > 'cluster_server1': Failed to add tap interface to bridge 'virbr0': No such > device > > 10:06:08.921: info : qemudDispatchSignalEvent:390 : Received unexpected > signal 17 > 10:06:08.927: debug : virExecWithHook:617 : LC_ALL=C /usr/bin/kvm -help > 10:06:08.938: info : qemudDispatchSignalEvent:390 : Received unexpected > signal 17 > 10:06:09.000: error : qemudNetworkIfaceConnect:1445 : Failed to add tap > interface to bridge 'virbr0': No such device > 10:06:09.000: error : qemuAutostartDomain:584 : Failed to autostart VM > 'cluster_server2': Failed to add tap interface to bridge 'virbr0': No such > device > (...) > Scenatio 3. > No errors in libvirtd.log > > > I didn't see any valuable logs in /var/log/boot.log, /var/log/messages, > /var/log/syslog. Please let me know if you want to see them anyway or have > any suggestions right away. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: scenario1 > Type: application/octet-stream > Size: 19317 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: scenario2 > Type: application/octet-stream > Size: 8294 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: scenario3 > Type: application/octet-stream > Size: 2366 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: libvirt-bin.conf > Type: application/octet-stream > Size: 924 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20110606/54a07ab3… > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 18, Issue 7 > ******************************************** >

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[libvirt-users] Resizing ext4 fedora qemu guest
by Alex 07 Jun '11

07 Jun '11

Hi, I have a fedora14 host with a fedora15 guest and I'm trying to resize the /home partition from 200GB to 240GB. I'm relatively new to the virsh/guestfish commands, as well as LVM, although I think I have a reasonable understanding. I have followed the virt-resize directions (http://libguestfs.org/virt-resize.1.html) but it still shows 200GB: # fdisk -l /dev/mapper/vg_custserv-lv_home Disk /dev/mapper/vg_custserv-lv_home: 197.2 GB, 197165842432 bytes 255 heads, 63 sectors/track, 23970 cylinders, total 385089536 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Outside of the guest, I see this: # virt-filesystems --long --parts --lvs -h -a newdisk.img Name Type Size Parent /dev/vg_custserv/lv_home lv 184G /dev/vg_custserv /dev/vg_custserv/lv_root lv 50G /dev/vg_custserv /dev/vg_custserv/lv_swap lv 5.9G /dev/vg_custserv /dev/sda1 partition 500M /dev/sda /dev/sda2 partition 240G /dev/sda The partition is the correct size, but it appears the volume group(?) is not the correct size. fdisk from within the guest also shows the correct size for the device. I've tried resize2fs from within the guest. Does virt-resize understand the ext4 filesystem and how to properly resize it? Is that my problem? I've also tried using guestfish with lvresize-free without success: <fs> lvresize-free /dev/mapper/vg_custserv-lv_home 100 libguestfs: error: lvresize_free: New size (5876 extents) matches existing size (5876 extents) Run `lvresize --help' for more information. I'm really not sure what to do next. Any ideas greatly appreciated. Thanks, Alex

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[libvirt-users] Release of libvirt-0.9.2
by Daniel Veillard 06 Jun '11

06 Jun '11

As planned the new release is available at: ftp://libvirt.org/libvirt/ It is a rather large release with near 400 commits included. From an user point of view the main improvement is likely to be when using migration as various work has been done to extend the protocol and to avoid having the migration command stop other concurrent operations (like virsh list). See below for a number of new features, improvement and bug fixes: Features: - Framework for lock manager plugins (Daniel P. Berrange) - API for network config change transactions (Michal Privoznik) - flags for setting memory parameters (Hu Tao) - virDomainGetState public API (Jiri Denemark) - qemu: allow blkstat/blkinfo calls during migration (Federico Simoncelli) - Introduce migration v3 API (Daniel P. Berrange) - Defining the Screenshot public API (Michal Privoznik) - public API for NMI injection (Lai Jiangshan) Documentation: - esx: Fix driver method version annotations (Matthias Bolte) - vbox: Fix typo in error message (Matthias Bolte) - virsh: Document nodeinfo output (Jiri Denemark) - Correct 'cputune' documentation example. (Neil Wilson) - document iface-* commands (Eric Blake) - Add initial docs about the lock managers (Daniel P. Berrange) - maint: use consistent file name for threading notes (Eric Blake) - Fix virTypedParameter alias comments (Matthias Bolte) - Fix error syntax of vcpupin example XML (Osier Yang) - Automatically generate the hvsupport.html.in file from source files (Daniel P. Berrange) - Fix documentation for cputune parameters (Osier Yang) - avoid double 'the' (Eric Blake) - Add documentation about test suites (Daniel Veillard) - updates to CA cert and client cert/key info (Doug Goldstein) - node filesystem attr is 'accessmode', not 'mode' (Cole Robinson) Portability: - vbox: Fix version extraction on Windows for newer VirtualBox versions (Matthias Bolte) - Make dlopen usage in lock manager conditional (Matthias Bolte) - build: fix VPATH build break from previous patch (Eric Blake) - Remove call to deprecated gnutls_certificate_type_set_priority (Daniel P. Berrange) - Fix sysinfo/virsh build problems on Win32 (Daniel P. Berrange) - Fix build with --with-driver-modules enabled (Matthias Bolte) - build: fix 'make dist' for ./configure --without-remote (Eric Blake) - virsh: time_t is not a long on FreeBSD (Matthias Bolte) - time_t is not a long on FreeBSD, switch internal type to long long (Matthias Bolte) - build: avoid strerror_r pitfalls (Eric Blake) - build: fix VIR_DEBUG on mingw (Eric Blake) - build: generate files when building without libvirtd (Wen Congyang) - build: drop unused sys/syslimits.h header (Eric Blake) - Fix prototype of virRun for Win32 targets (Daniel P. Berrange) - build: tolerate unlimited group size (Eric Blake) - Disable virCommandExec on Win32 (Daniel P. Berrange) - command: Fix compilation on FreeBSD (Matthias Bolte) - apparmor: Fix compilation by removing remains from virCommand conversion (Matthias Bolte) - configure: Fix mpath check on non-Linux systems (Matthias Bolte) - fix xdr detection and use with recent glibc (Christophe Fergeau) - build: avoid gcc preprocessor extensions (Eric Blake) - build: fix VPATH build with distributed generated files (Eric Blake) - build: fix VPATH builds (Eric Blake) Bug fixes: - Fix QEMU p2p v2 migration when run from a v3 client (Daniel P. Berrange) - Don't raise an error if the migration cookie is NULL (Daniel P. Berrange) - Fix check of virKillProcess return status (Daniel P. Berrange) - qemu: Avoid use after free in qemuCaps parsing (Jiri Denemark) - security driver: ignore EINVAL when chowning an image file (Laine Stump) - migrate: detect xml incompatibility (Eric Blake) - event: avoid memory leak on cleanup (Eric Blake) - qemu: avoid memory leak on vcpupin (Eric Blake) - remote: avoid leak on failure (Eric Blake) - lock: avoid leak on failure (Eric Blake) - storage: avoid memory leak on stat failure (Eric Blake) - storage: avoid memory leak (Eric Blake) - libvirtd: avoid leak on failure (Eric Blake) - command: avoid leak on failure (Eric Blake) - Explicitly set VM state to paused after migration completes (Daniel P. Berrange) - Fix regressions BlockStats/Info APIs in QEMU driver (Daniel P. Berrange) - Fix minor issues in libxenlight managed save (Jim Fehlig) - Fix auditing of disk hotunplug operations (Daniel P. Berrange) - Avoid crash on NULL pointer in lock driver impls during hotplug (Daniel P. Berrange) - Fix return value in lock manager hotplug methods (Daniel P. Berrange) - Make sure virDomainSave/virDomainManagedSave reset id to -1 (Daniel P. Berrange) - Fix handling of VIR_EVENT_HANDLE_ERROR in QEMU monitor (Daniel P. Berrange) - security: plug regression introduced in disk probe logic (Eric Blake) - Fix order of disks and controllers (Jiri Denemark) - util: Fix incorrect error in PCI functions (Osier Yang) - openvz: Restore original EOF handling in openvzGetProcessInfo (Matthias Bolte) - openvz: Handle getline failures in openvzReadConfigParam properly (Matthias Bolte) - conf: Fix incorrect spice graphic XML format on compression options (Michal Privoznik) - nwfilter: reorder locks (Stefan Berger) - openvz: Fix regression in openvzGetVPSUUID (Matthias Bolte) - esx: Fix regression in absolute file name handling (Matthias Bolte) - openvz: Fix regression in config file parsing (Taisuke Yamada) - audit: fix minor off-by-one (Eric Blake) - Fix libxl vm def handling on domU cleanup (Markus Groß) - Fix modifying disk devices in qemu driver (Markus Groß) - json: Avoid passing large positive 64 bit integers to QMP. (Richard W.M. Jones) - Fix initialization of current vcpus in libxl driver (Jim Fehlig) - qemu: Don't change ownership of file when appending to it (Michal Privoznik) - qemu: fix typo in name - should be VHOST_NET, not VNET_HOST (Laine Stump) - Fix QEMU -vnc arg generation with raw IPv6 addresses (Daniel P. Berrange) - Fix peer2peer migration with transient VMs (Daniel P. Berrange) - python: Don't free must-not-free variables (Michal Privoznik) - python: Fix typo in bindings (Michal Privoznik) - libvirt.spec: /var/cache/libvirt should be 0711. (Richard W.M. Jones) - remote: remove bogus virDomainFree. (Richard W.M. Jones) - qemudDomainMemoryPeek: change ownership/selinux label on temporary file. (Richard W.M. Jones) - Fix QEMU migration cookie crash for guests with no graphics (Daniel P. Berrange) - Blank out the 'listenAddr' parameter if empty string (Daniel P. Berrange) - Improve invalid argument checks for the public API (Matthias Bolte) - qemu: fix typo in spice migration code (Michal Privoznik) - openvz: fix logic bug in previous patch (Eric Blake) - Fix error reporting in stream creation code (Matthias Bolte) - virsh: Correctly initialize libvirt (Jiri Denemark) - Fix leak of mime type string in screenshot dispatcher (Daniel P. Berrange) - Fix remote dispatcher for screenshot command (Daniel P. Berrange) - Add missing initialization to 'ret' in qemu migration (Daniel P. Berrange) - Close all sockets before cancelling QEMU migration (Daniel P. Berrange) - Ensure we always read a full buffer in tunnelled migration (Daniel P. Berrange) - phyp: avoid a crash (Eric Blake) - stream: avoid use-after-free (Eric Blake) - virsh: Fix uninitialized variable warning (Matthias Bolte) - libxl: fix typos in previous patch (Eric Blake) - node_device: avoid null dereference on error (Eric Blake) - tests: avoid crash when run under gcov (Eric Blake) - Fix two uninitialized variable warnings (Matthias Bolte) - apparmor: Fix uninitalized variable warning in virt-aa-helper (Matthias Bolte) - Fix qemuMigrationToFile nonull annotation (Daniel P. Berrange) Improvements: - API: consolidate common unreleased enums (Eric Blake) - uml: correct command line networking parameters (Heath Petersen) - Add call to sanlock_restrict() in QEMU lock driver (Daniel P. Berrange) - screenshot: Expose the new API in virsh (Michal Privoznik) - libxl: adds managed save and restore support (Markus Groß) - libxl: get maximum memory of running domain (Markus Groß) - Add a plugin for the 'sanlock' project (Daniel P. Berrange) - Allow leases to be hotpluged with QEMU guests (Daniel P. Berrange) - Support passing QEMU lock state to dest during migration (Daniel P. Berrange) - Integrate the QEMU driver with the lock manager infrastructure (Daniel P. Berrange) - Add higher level lock API for domain objects (Daniel P. Berrange) - Add a 'nop' lock driver implementation. (Daniel P. Berrange) - Support leases in guest XML and lock manager (Daniel P. Berrange) - Allow handshake with child process during startup (Daniel P. Berrange) - tests: really fix QEMU XML-2-ARGV graphics-spice-timeout test (Eric Blake) - build: avoid corrupting / in RHEL 5 (Eric Blake) - tests: Add a test for correct disk device ordering (Jiri Denemark) - Fix QEMU XML-2-ARGV graphics-spice-timeout test (Matthias Bolte) - remote generator: Handle some virTypedParameterPtr using functions (Matthias Bolte) - apibuild: Restrict long usage to existing functions and structs (Matthias Bolte) - remote generator: Legacy support for hyper to long mappings (Matthias Bolte) - Use common parameter order for remote(De)SerializeTypedParameters (Matthias Bolte) - openvz: Add simple test for openvzReadNetworkConf (Matthias Bolte) - openvz: Set virtType to openvz in openvzLoadDomains (Matthias Bolte) - storage: List directory volumes for dir/fs/netfs pools (Cole Robinson) - tests: Add more complex domain scheme test data (Michal Privoznik) - tests: Test for SPICE compression options (Michal Privoznik) - Ignore backward compatibility macros in apibuild.py (Matthias Bolte) - openvz: fix bridge devices parsing in openvzReadNetworkConf() (Jean-Baptiste Rouault) - Allow custom XML to be passed in during migration (Daniel P. Berrange) - Allow virsh to pass in a custom XML document for migration (Daniel P. Berrange) - Add an API for comparing the ABI of two guest configurations (Daniel P. Berrange) - Remove unused 'target' field in virDomainHostdevDef (Daniel P. Berrange) - lxc: Seperate domain config loading (Osier Yang) - openvz: Automatically disable on non-Linux systems (Matthias Bolte) - Support maximum and current memory flags in libxl driver (Markus Groß) - Add domainSave/Restore to libxl driver (Markus Groß) - Add domainCoreDump to libxl driver (Markus Groß) - Populate domid field of devices for libxenlight (Markus Groß) - Issue full error messages when processing QEMU monitor I/O (Daniel P. Berrange) - Don't kill QEMU process when a monitor I/O parsing error occurs (Daniel P. Berrange) - Introduce a new event emitted when a virtualization failure occurs (Daniel P. Berrange) - sched: provide new API shims for remaining drivers (Eric Blake) - virsh: improve schedinfo querying ability (Eric Blake) - remote: introduce remoteGetSchedulerParametersFlags (Eric Blake) - qemu: introduce qemuGetSchedulerParametersFlags (Eric Blake) - sched: introduce virDomainGetSchedulerParametersFlags (Eric Blake) - remote: consolidate typed parameter handling (Eric Blake) - maint: prefer newer API names internally (Eric Blake) - libvirt.h: avoid regression, and document preferred name (Eric Blake) - Fix virExecWithHook Prototype (Richard Laager) - interface: reformat error logs (Laine Stump) - interface: implement a test driver for network config transaction API. (Michal Privoznik) - interface: Implement driver methods for network config transaction API (Michal Privoznik) - interface: expose network config transaction API to virsh (Michal Privoznik) - interface: implement remote protocol for network config transaction API (Michal Privoznik) - interface: implement public APIs for libvirt transactional network changes (Michal Privoznik) - interface: define internal driver API for network config transactions (Michal Privoznik) - sexpr: Improve serialization error reporting (Matthias Bolte) - qemu: implement the new flags for setting memory parameters (Hu Tao) - qemu: implement the new flags for getting memory parameters (Hu Tao) - qemu : support persistent add/delete network interface (KAMEZAWA Hiroyuki) - openvz: Add simple testcase for config file parsing function (Matthias Bolte) - Add disk attach/detach support to libxl driver (Markus Groß) - Refactored libxl datastructure instantiation (Markus Groß) - schema: Add graphics element passwdValidTo attribute to schema (Michal Privoznik) - Fix sign mismatches between public API, driver API and XDR protocol (Matthias Bolte) - remote generator: Fix XDR sign mismatch for virNodeGet(Cells)FreeMemory (Matthias Bolte) - remote generator: Handle stream-using functions (Matthias Bolte) - remote generator: Make call-by-reference handling stricter (Matthias Bolte) - remote generator: Rename virNodeGetCellsFreeMemory parameters to common pattern (Matthias Bolte) - remote generator: Handle virDomainCreateWithFlags (Matthias Bolte) - Allow to explicitly disable the secrets a directory storage driver (Matthias Bolte) - Fix the signature of virDomainMigrateFinish3 for error reporting (Daniel P. Berrange) - Fix preservation of errors across migration steps (Daniel P. Berrange) - Improve debug logging of migration APIs (Daniel P. Berrange) - Fix error propagation in finish method for v3 migration (Daniel P. Berrange) - Fix SPICE seamless migration hostname (Daniel P. Berrange) - Fix resume on destination when doing non-live tunnelled migration (Daniel P. Berrange) - Introduce two method migration APIs (Daniel P. Berrange) - Add a second URI parameter to virDomainMigratePerform3 method (Daniel P. Berrange) - Extend v3 migration protocol to allow app supplied XML for target (Daniel P. Berrange) - esx: Report an error when auth pointer is missing instead of declining (Matthias Bolte) - Perform feature flag compat checking in QEMU migration cookies (Daniel P. Berrange) - Replace all remaining setgid/setuid calls with virSetUIDGID (Jiri Denemark) - util: Keep errno set to the root error after when returning from virSetUIDGID (Jiri Denemark) - storage: Add comment to picking return value of qemu-img (Michal Privoznik) - spice: support streaming-video parameter (Alon Levy) - nwfilter: enable filtering of gratuitous ARP packets (Stefan Berger) - qemu: don't require is_kvm for vhost-net support (Laine Stump) - Use per-user TLS certificates when possible (Doug Goldstein) - storage: pick return value of qemu-img (Michal Privoznik) - remote generator: Add special case for virConnectGetType (Matthias Bolte) - remote generator: Don't rely on $_ being stable over a large function (Matthias Bolte) - build: require newer gettext (Eric Blake) - virsh: Use Env variables for debug level and logfile (Supriya Kannery) - Don't generate cookies with v2 migration protocol. (Daniel P. Berrange) - Ensure p2p and direct migration use the new v3 protocol if available (Daniel P. Berrange) - remote: remove special case for getting version (Eric Blake) - virsh: optimize creation of default connection (Eric Blake) - Clarify that virDomainGet(Memory|Blkio)Parameters doesn't support subsets (Matthias Bolte) - Clarify that virDomainSet(Memory|Blkio)Parameters can take parameter subsets (Matthias Bolte) - Clarify that virDomainSetSchedulerParameters(Flags) can take subsets (Matthias Bolte) - Clarify the semantic of virDomainGetSchedulerParameters arguments (Matthias Bolte) - Clarify semantic of nparams argument of virDomainGetSchedulerType (Matthias Bolte) - Fix messages using VIR_ERR_XML_ERROR (Cole Robinson) - libvirt.h: consolidate typed parameter handling (Eric Blake) - build: update to latest gnulib (Eric Blake) - Add support for 'passthru' mode for direct network interfaces (Dirk Herrendorefer) - virsh: add parameters --live, --config and --current to cmd schedinfo (Hu Tao) - remote: introduce remoteSetSchedulerParametersFlags (Hu Tao) - qemu: introduce qemuSetSchedulerParametersFlags (Hu Tao) - sched: adjust parameter values to make current = 0 (Eric Blake) - introduce virDomainSetSchedulerParametersFlags (Hu Tao) - storage_backend: Convert virRunWithHook usage to virCommand (Cole Robinson) - storage_backend: Fix error reporting with regex helper (Cole Robinson) - storage: Covert regex helpers to virCommand (Cole Robinson) - openvz: Convert virExec usage to virCommand (Cole Robinson) - storage: iscsi: Convert virExec to virCommand (Cole Robinson) - remote generator, client: Add more special case handling (Matthias Bolte) - remote generator, client: Handle functions that return an optional string (Matthias Bolte) - esx: Simplify some esxVI_Boolean to bool (Matthias Bolte) - esx: Convert autoAnswer from esxVI_Boolean to a simple bool (Matthias Bolte) - esx: Fix race condition in esxVI_EnsureSession (Matthias Bolte) - esx: Whitespace cleanup in the generator (Matthias Bolte) - esx: Change some alignments in the input file (Matthias Bolte) - esx: Change generated method parameter autobinding (Matthias Bolte) - virsh: Report an error when virGetUserDirectory fails (Matthias Bolte) - maint: mark more perl scripts executable (Eric Blake) - maint: mark perl script executable (Eric Blake) - maint: ignore generated file (Eric Blake) - Improve error message when XDR marshalling fails (Daniel P. Berrange) - Run tunnelled migration IO in separate thread (Daniel P. Berrange) - Don't overwrite error when stream send fails (Daniel P. Berrange) - Make tunnelled migration honour resource restriction (Daniel P. Berrange) - Refactor migration completion loop to allow code reuse (Daniel P. Berrange) - Implement migration v3 protocol in QEMU driver (Daniel P. Berrange) - Merge tunnel and non-tunnel migration impl into one (Daniel P. Berrange) - Fix VM teardown if prepare returns invalid URI in v2 migration (Daniel P. Berrange) - Refactor tunnelled migration methods (Daniel P. Berrange) - Wire up SPICE client relocation with QEMU migration (Daniel P. Berrange) - Pass graphics setup from dst back to src via migration cookies (Daniel P. Berrange) - Introduce migration cookies to QEMU driver (Daniel P. Berrange) - Fix locking with qemuMigrationPrepareTunnel method (Daniel P. Berrange) - Remote driver implementation of new migration API (Daniel P. Berrange) - Add many version number annotations to drivers (Daniel P. Berrange) - Convert all driver struct intializers to C99 style (Daniel P. Berrange) - Tweak driver naming for consistency with public API (Daniel P. Berrange) - qemu: Update domain state when reconnecting monitor (Jiri Denemark) - Implement domain state reason (Jiri Denemark) - Implement basic virDomainGetState in all drivers (Jiri Denemark) - virsh: Prefer virDomainGetState over virDomainGetInfo (Jiri Denemark) - Wire protocol format and remote driver for virDomainGetState (Jiri Denemark) - virDomainGetState public API implementation (Jiri Denemark) - Internal driver API for virDomainGetState (Jiri Denemark) - esx: Refactor common code in the generator (Matthias Bolte) - esx: Improve dynamic cast detection in the generator (Matthias Bolte) - esx: Improve list usage detection in the generator (Matthias Bolte) - esx: Remove 1000 lines of generated but unused code (Matthias Bolte) - esx: Generate implicit _this macros (Matthias Bolte) - esx: Move the Event type from the VI generator to manually written code (Matthias Bolte) - test: all test_scripts should be part of tarball when building without libvirtd (Wen Congyang) - build: probes.d and libvirtd.stp should be part of tarball (Wen Congyang) - remote: Convert SSH tunnel to virCommand (Cole Robinson) - storage: Convert qemu-img -help parsing to virCommand (Cole Robinson) - apparmor: Convert virExec usage to virCommand (Cole Robinson) - util: Combine __virExec and virExecWithHook (Cole Robinson) - remote_driver: Convert virExecDaemonize usage to virCommand (Cole Robinson) - remote: Use virDomainEventState helpers (Cole Robinson) - libxl: Convert to virDomainEventState (Cole Robinson) - test: Use virDomainEventState helpers (Cole Robinson) - lxc: Use virDomainEventState helpers (Cole Robinson) - qemu: Use virDomainEventState helpers (Cole Robinson) - domain_event: Add common domain event queue/flush helpers (Cole Robinson) - domain_event: Add virDomainEventState structure (Cole Robinson) - xml: Use virXMLParse* helpers everywhere (Cole Robinson) - domain: Require init node for container guests (Cole Robinson) - xml: Make sure virXpathNodeSet always sets an error (Cole Robinson) - vbox: Implement the Screenshot driver methods (Michal Privoznik) - qemu: Implement the Screenshot driver methods (Michal Privoznik) - virFDStream: Add option for delete file after it's opening (Michal Privoznik) - Implementing the Screenshot remote protocol (Michal Privoznik) - Implementing the Screenshot public API (Michal Privoznik) - Defining the Screenshot internal API (Michal Privoznik) - remote generator: Add skipgen/autogen flags to .x files (Matthias Bolte) - nwfilter: drop unused flag argument (Eric Blake) - maint: omit translation for all VIR_INFO (Eric Blake) - build: wrap macro body in one-shot do-while loop (Eric Blake) - build: drop need for VIR_DOMAIN_DEBUG0() (Eric Blake) - libvirt,logging: cleanup VIR_XXX0() (Lai Jiangshan) - maint: avoid a couple of gnulib regressions (Eric Blake) - build: remove some dead assignments (Eric Blake) - Allow destroying QEMU VM even if a job is active (Daniel P. Berrange) - Add support for YAJL version 2 API/ABI (Daniel P. Berrange) - libxl: support enabling the HPET (Paolo Bonzini) - libxl: support enabling the HPET (Paolo Bonzini) - xen: parse and generate hpet item in sxpr (Paolo Bonzini) - virsh: flexibility in CA cert and user cert/key (Doug Goldstein) - remote generator: Make parsing stricter (Matthias Bolte) - remote generator: Unify unsigned int notation in .x files (Matthias Bolte) - remote generator: Fix comment ignoring regex (Matthias Bolte) - Rename internal DumpXML functions to GetXMLDesc (Matthias Bolte) - qemu,inject-nmi: Implement the driver methods (Lai Jiangshan) - inject-nmi: Expose the new API in virsh (Lai Jiangshan) - inject-nmi: Implementing the remote protocol (Lai Jiangshan) - inject-nmi: Implementing the public API (Lai Jiangshan) - inject-nmi: Defining the internal API (Lai Jiangshan) - lxc: container: Build init cmd before we close stdout (Cole Robinson) - lxc: container: Convert init node exec to virCommand (Cole Robinson) - command: Add virCommandExec helper (Cole Robinson) - lxc: driver: Improve logging when launching emulator (Cole Robinson) - lxc: driver: Convert emulator launching to virCommand (Cole Robinson) - command: Add virCommandEnvAddFormat (Cole Robinson) - build: translate generated strings (Eric Blake) - Pull in gnulib fnmatch module (Daniel P. Berrange) - json: Fix *GetBoolean functions (Jiri Denemark) - build: rebuild generated files after rpcgen_fix.pl tweak (Eric Blake) - Re-add libvirt.spec to tarball to allwo "make rpm" (Daniel Veillard) - build: Remove all generated RPC files from GIT (Daniel P. Berrange) - build: refactor generated RPC files (Daniel P. Berrange) - build: rename generated files to .h, for automake's sake (Eric Blake) - remote generator, client: Handle arguments with limited length (Matthias Bolte) - remote generator, client: Handle functions that return lists (Matthias Bolte) - remote: Refactor remote*Open and remote*Close functions (Matthias Bolte) - remote generator, client: Handle functions with optional return values (Matthias Bolte) - remote generator, client: Handle functions with multiple return values (Matthias Bolte) - remote generator, client: Handle functions with wrapped return values (Matthias Bolte) - remote generator, client: Handle functions with simple return values (Matthias Bolte) - remote generator, client: Handle simple remote driver functions (Matthias Bolte) - remote generator: Reorder into prepare and print section (Matthias Bolte) - remote generator, daemon: Handle functions with multiple return values (Matthias Bolte) - remote generator, daemon: Combine multiple ifs in the generated code (Matthias Bolte) - remote generator, daemon: Handle the CPU functions (Matthias Bolte) - remote generator: Refactor duplicate code (Matthias Bolte) - remote generator, daemon: Handle functions that return lists (Matthias Bolte) - remote: Rename 'nameslen' to the common 'maxnames' (Matthias Bolte) - remote generator, daemon: Handle functions with optional arguments (Matthias Bolte) - remote generator, daemon: Handle more functions (Matthias Bolte) - remote generator, daemon: Handle simple-return-value functions (Matthias Bolte) - remote generator, daemon: Change capitalization of some words (Matthias Bolte) - remote: Replace 'domain' with 'dom' in the XDR protocol (Matthias Bolte) - remote generator, daemon: Output function bodies too (Matthias Bolte) - remote generator: Replace tabs with spaces and rename file (Matthias Bolte) - Balloon dom0 in libxl driver (Markus Groß) - remote: check actual access to the cert (Doug Goldstein) - maint: avoid comparisons to bool constants (Eric Blake) - Add warning message to XML definition files stored on disk (Michal Privoznik) - Fix security driver handling of FIFOs with QEMU (Daniel P. Berrange) - Make taint warnings also go into the domain logfile (Daniel P. Berrange) - Add a qemuDomainAppendLog method for writing to the domain logfile (Daniel P. Berrange) - Move qemuProcessLogReadFD and qemuProcessLogFD methods (Daniel P. Berrange) - Log taint warnings in QEMU driver (Daniel P. Berrange) - Add field to virDomainObjPtr to track "tainting" (Daniel P. Berrange) - virsh: improve TLS certificate error messages (Doug Goldstein) - virsh: use new method for easier log to file (Eric Blake) - buf: add virBufferVasprintf (Eric Blake) - maint: rename virBufferVSprintf to virBufferAsprintf (Eric Blake) - Make QEMU migration use cached qemu capabilities data (Daniel P. Berrange) - Make QEMU hotplug use cached qemu capabilities data (Daniel P. Berrange) - Persist qemu capabilities in the domain status file (Daniel P. Berrange) Cleanups: - build: silence coverity false positive (Eric Blake) - build: silence coverity false positive (Eric Blake) - .gitignore: Exempt a new test binary. (Eric Blake) - Ensure hvsupport.html.in is built before HTML validation (Daniel P. Berrange) - Fix a make check error (Daniel Veillard) - Add sexpr.c to the list of file with translatable messages (Matthias Bolte) - don't check flags in virDomainSetSchedulerParametersFlags (Hu Tao) - build: silence clang false positive (Eric Blake) - Remove obsolete remoteDispatchOOMError method (Daniel P. Berrange) - remote: keep 'make check' happy (Eric Blake) - build: avoid compiler warning during configure (Wen Congyang) - Remove bogus assert() from migration code (Daniel P. Berrange) - build: drop files generated by config.status from tarball (Eric Blake) Thanks everybody for contributing to the release, with documentation, ideas, feedback or patches ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

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[libvirt-users] Unable to migrate a vm
by PREETHI RAMESH 03 Jun '11

03 Jun '11

Hi! I've attached my code The error I got was: run: Domain:hda2 id 11 running hvm libvir: Domain error : operation virDomainMigrate forbidden for read only access exception FOUR caught:org.libvirt.LibvirtException: operation virDomainMigrate forbidden for read only access level:VIR_ERR_ERROR code:VIR_ERR_OPERATION_DENIED domain:VIR_FROM_DOM hasConn:false hasDom:false hasNet:false message:operation virDomainMigrate forbidden for read only access str1:operation %s forbidden for read only access str2:virDomainMigrate str3:null int1:-1 int2:-1 BUILD SUCCESSFUL (total time: 9 seconds) PLEASE help me. I've been stuck with it for three days!

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[libvirt-users] libvirtError: internal error Domain mytest didn't show up
by Chun Tat David Chu 02 Jun '11

02 Jun '11

Hi All, I am new using libvirt. I kept on getting the following error when I try to start my VM. Can anyone give me any suggestion on what could went wrong? Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 498, in run_domain vm.startup() File "/usr/share/virt-manager/virtManager/domain.py", line 573, in startup self.vm.create() File "/usr/lib64/python2.4/site-packages/libvirt.py", line 287, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: internal error Domain mytest didn't show up Thanks, David

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[libvirt-users] io=native
by Troels Arvin 02 Jun '11

02 Jun '11

Hello, Regarding KVM - in particular RHEL 6.1 x86_64: I just did a set of benchmarks comparing the effect of <driver name='qemu' type='raw' cache='none' io='native'/> versus <driver name='qemu' type='raw' cache='none'/> Using Oracle's "orion" tool with an XIV backend, I got: With io='native': Maximum Large MBPS=964.41 Maximum Small IOPS=11797 Minimum Small Latency=7.57 WithOUT io='native': Maximum Large MBPS=727.42 Maximum Small IOPS=7793 Minimum Small Latency=7.56 In other words, setting the io-attribute to 'native' yields a significant performance improvement. I wonder why KVM doesn't simply default to using io='native'. If that can't happen, then I wonder why libvirt doesn't set io='native' for storage attached to a guest after creation. (virt-manager sets io='native' for the first storage, attached during guest setup, but seems to forget for subsequent block-device additions). -- Regards, Troels Arvin <troels(a)arvin.dk> http://troels.arvin.dk/

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