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[libvirt-users] Windows guest eats as many CPU as available
by Matthias Meyer 10 Jan '11

10 Jan '11

Hello, I run Debian on my Laptop Lenovo X60s (with VT). I've created a Windows-XP as well as a Windows-Vista guest on it. Both, XP as well as Vista, eats as many CPU as available. Therefore the CPU always has high load and will never reduce cpu-frequenz or ventilator. Did this works as designed or should I modify something? Thanks in advance Matthias -- Don't Panic

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[libvirt-users] The VM as a way of saving our digital heritage
by Dale Amon 08 Jan '11

08 Jan '11

Some of the discussion items I have seen about VM's failing under upgrades brings up a worrisome point, for me at least. I look at a VM as a 'forever machine'. A way in which I can set up an environment with any old OS and software and be able to boot and interact with it now, or next year or 100 years from now. It is the answer to 'how do we guarantee access to our digitized cultural heritage?' That puts a great burden on the team doing this work. It means you have to guarantee that an archivist in 2110 can take a VM created today and boot it up and run it on their hyper-quantum-bio computer (the one that you could mistake for a real penguin) under Linux version 15.4.32... and still be able to run a Mathematica file from 2005. I don't know about the rest of you, but I think this is a *very* important part of what should be the spec for VM handling, perhaps one of *the* most important ones.

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[libvirt-users] TUNGETIFF ioctl() failed - virtual machine can't start
by Matthias Meyer 08 Jan '11

08 Jan '11

Hi, I want to migrate from vmware to KVM. Therefore I have installed debian stable (lenny) and create two virtual machines (KVM). Both (XP as well as Vista) running fine. After upgrading to debian testing (sqeeze) both XP-guest as well as Vista-guest didn't start anymore. Both are failing during preparation, probably because of a network-problem. I will give XP as an example: cat /var/log/libvirt/qemu/devel-xp.log.2 /usr/bin/kvm -S -M pc -m 256 -smp 1 -name devel-xp -monitor pty -localtime -no-acpi -boot c -drive file=/KVM-Images/devel-xp.qcow2,if=ide,index=0,boot=on -drive file=/mnt/MultiMedia/CD-Server/Betriebssysteme/Windows/WindowsNT/WindowsXPpro_sp2_de.iso,if=ide,media=cdrom,index=2 -net nic,macaddr=54:52:00:29:1a:2d,vlan=0 -net tap,fd=11,script=,vlan=0,ifname=vnet0 -serial pty -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:0 -k de char device redirected to /dev/pts/1 char device redirected to /dev/pts/2 info cpus -> the above will run fine before the upgrade the following will fail after the upgrade tail /var/log/messages: Jan 8 00:56:33 linux-dev libvirtd: 00:56:33.461: warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed Jan 8 00:56:33 linux-dev kernel: [ 1903.710664] device vnet0 entered promiscuous mode Jan 8 00:56:33 linux-dev kernel: [ 1903.711011] br0: port 2(vnet0) entering learning state Jan 8 00:56:33 linux-dev kernel: [ 1904.022502] br0: port 2(vnet0) entering disabled state Jan 8 00:56:33 linux-dev kernel: [ 1904.024752] device vnet0 left promiscuous mode Jan 8 00:56:33 linux-dev kernel: [ 1904.024752] br0: port 2(vnet0) entering disabled state tail -f /var/log/libvirt/qemu/devel-xp.log LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/ QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name devel-xp -uuid 1b412c63-dcc0-739f-3c27-630147e6b162 -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/devel-xp.monitor,server,nowait -mon chardev=monitor,mode=readline -rtc base=localtime -no-acpi -boot c -drive file=/KVM-Images/devel-xp.qcow2,if=none,id=drive-ide0-0-0,boot=on,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/mnt/MultiMedia/CD-Server/Betriebssysteme/Windows/WindowsNT/WindowsXPpro_sp2_de.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -device rtl8139,vlan=0,id=net0,mac=54:52:00:29:1a:2d,bus=pci.0,addr=0x3 -net tap,fd=40,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -k de -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char device redirected to /dev/pts/4 TUNGETIFF ioctl() failed: Invalid argument exception 13 (0) rax 0000000000000010 rbx 0000000000008c00 rcx 0000000000006eb6 rdx 00000000000c8c00 rsi 00000000f2010000 rdi 00000000000c0000 rsp 0000000000006eac rbp 00000000f2010000 r8 0000000000000000 r9 0000000000000000 r10 0000000000000000 r11 0000000000000000 r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 0000000000000000 rip 00000000000fde7c rflags 00033002 cs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) ds 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) es 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) ss 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) fs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) tr 0000 (feffd000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0) ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0) gdt f7910/37 idt f8990/0 cr0 10 cr2 0 cr3 0 cr4 0 cr8 0 efer 0 code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 --> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Any hints? Thanks AthLux -- Don't Panic

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[libvirt-users] Xen/KVM guest disk sizes
by Tavares, John 05 Jan '11

05 Jan '11

I was wondering if there is any way from either the virsh CLI or the libvirt API (preferably virsh) to get the amount of disk space to get the amount of disk space each guest has been assigned??

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Re: [libvirt-users] Xen/KVM guest disk sizes
by Tavares, John 04 Jan '11

04 Jan '11

Lastly, if there is no way to get this information from virsh and/or libvirt, is there a way to figure it out any other way?? Thanks. John ________________________________ From: Tavares, John Sent: Tuesday, January 04, 2011 11:44 AM To: 'libvirt-users(a)redhat.com' Cc: Tavares, John; Betley, Greg; Tomen Tse; 'Daniel P. Berrange' Subject: Xen/KVM guest disk sizes I was wondering if there is any way from either the virsh CLI or the libvirt API (preferably virsh) to get the amount of disk space to get the amount of disk space each guest has been assigned??

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[libvirt-users] autostarting storage pool
by Marcin Krol 04 Jan '11

04 Jan '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello everyone, How do I make storage pool auto start? I have: virsh # pool-list Name State Autostart - ----------------------------------------- default active yes virtimages active no I don't see anything in pool's xml that could suit this purpose: virsh # pool-dumpxml virtimages <pool type='dir'> <name>virtimages</name> <uuid>6294915e-7b48-e610-7e46-d771c2e376a3</uuid> <capacity>84551581696</capacity> <allocation>192811008</allocation> <available>84358770688</available> <source> </source> <target> <path>/vms</path> <permissions> <mode>0700</mode> <owner>-1</owner> <group>-1</group> </permissions> </target> </pool> - -- Regards, mk - -- Premature optimization is the root of all fun. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNIyO+AAoJEFMgHzhQQ7hOuEwH/1a5zHnDNsGSsX6xLhGV3oN8 v81Vz5bE+SWBbiv3iv0fY8PVMmuEH/x0a4lLL3tZA8hvhPTvm2xGVHzGer9uHuUi 8mgUZUxNoE3tH7nLCzzBfO6QDOY5KZJat7C0sZ1yoAor5x18ARCcRou587zE8PZ5 xpBlcLMbt77sgG0BIirVtPF7jhLyRocUAQybVNyMqMUwiggaYwQXCE1EokcLjh6X hxLvfaQaaY0DeFYoZyo52CzJIZjuK28KeZcdre2HRA1/Vn0Entpr3rovBwUibsTL UD/MPPOXZHGuf0PxHNmxZKzjNrSVGaERuEvwIvH/yAHKykrZsX6e/HDo5XsklNs= =+rTA -----END PGP SIGNATURE-----

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[libvirt-users] availability of snapshots functionality via Python bindings
by Marcin Krol 04 Jan '11

04 Jan '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello everyone, Is this being worked on? I rather need this thing... Although my system is Debian Lenny, not RH: kulfon 10.0.0.228 /etc/default % dpkg -l | grep libvirt ii libvirt-bin 0.4.6-10+lenny1 the programs for the libvirt library ii libvirt0 0.4.6-10+lenny1 library for interfacing with different virtualization systems ii python-libvirt 0.4.6-10+lenny1 libvirt Python bindings I don't see anything like snapshots available via libvirt.virDomain: >>> dir(dom0) ['ID', 'OSType', 'UUID', 'UUIDString', 'XMLDesc', '__del__', '__doc__', '__init__', '__module__', '_conn', '_o', 'attachDevice', 'autostart', 'blockPeek', 'blockStats', 'connect', 'coreDump', 'create', 'destroy', 'detachDevice', 'info', 'interfaceStats', 'maxMemory', 'maxVcpus', 'memoryPeek', 'migrate', 'name', 'pinVcpu', 'reboot', 'resume', 'save', 'schedulerParameters', 'schedulerType', 'setAutostart', 'setMaxMemory', 'setMemory', 'setSchedulerParameters', 'setVcpus', 'shutdown', 'suspend', 'undefine', 'vcpus'] - -- Regards, mk - -- Premature optimization is the root of all fun. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNIgnXAAoJEFMgHzhQQ7hO86AIAIxQkWyYJ3vAsP579Geb0hhj XbkU2BSlxAkxToBoPoOYnS+W5ZlSf0/kqwJh2yQDCCCfwUXJ7k+QLQfTlJB+qOAZ xB/gA7c9wQLiHERWSYk81DoQWeatgHt/7G2cSP2G5O7I1l0C61mLEZQAQ8SqQ9Ay hVi7DhVX0qCNJTLAoN/C0ZLOAzRAnrKj2LOpqjBqU7CzD2Zx60FoUElRebSuiv8x aPPNgk5c7XQsEx+aXteobWwHdrlSeWXg4yomXrGQZ5CcJSTzQst0juhesK0CvdFM 6cLhBoAqI0C94CFNm1f2XP2ytnrCIQc3SXBNgHhy4SosqGE9+XMBLwq70OIYGCI= =Q9VB -----END PGP SIGNATURE-----

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[libvirt-users] VMware ESX 4.0 won't reboot guests.
by Patric Falinder 29 Dec '10

29 Dec '10

Hi, I just compiled libvirt with ESX support. I can login just fine, list all the guests/domains but when I try to reboot or shutdown one of my guests/domains I get this error: virsh # reboot dbcluster1 error: Failed to reboot domain dbcluster1 error: internal error HTTP response code 500 for call to 'RebootGuest'. Fault: ServerFaultCode - fault.RestrictedVersion.summary And nothing happens. I'm logged in as root so it shouldn't be any permission-related problems right!? because I can reboot it just fine with the vSpehere Client on one of my Windows boxes. In vSpehere I see this in Recent Tasks after I execute the reboot command: Find entity by UUID I can't find anything about this on Google either. Does anyone know what's wrong here? Thanks, -Patric

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[libvirt-users] Mapping partitions rather than disks into a Libvirt managed KVM guest
by Steven Ellis 23 Dec '10

23 Dec '10

I'm trying to migrate some XEN based environments over to KVM and I'm having a couple of issues with how I'm currently managing the storage On my Xen Server I have a bunch of LVM based partitions that are mapped into the guests as partitions rather than disks For example /dev/VIrtVG/server-home maps to /dev/sda2 which is mounted as /home in the guest. Is there a simple way to reproduce this using KVM and libvirt rather than needing enough spare space to turn each of these partitions into virtual disks. One method I've tried is using mdadm with linear to create a partition table stub but i'm a little worries about data integrity. dd if=/dev/zero of=/root/dummy.mbr count=256 losetup -f /root/dummy.mbr mdadm --build --verbose /dev/md0 --chunk=128 --level=linear --raid-devices=2 /dev/loop0 /dev/VIrtVG/server-home Then try to setup a partition table with fdisk. Any other recommendations? Thanks Steve

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[libvirt-users] ICMP into guest not "working"
by David Lane 23 Dec '10

23 Dec '10

Good afternoon. I have a RHEL6 host, running RHEL 3.8 as a guest. The NIC is bridged. From the guest, I can ping successfully to a variety of network devices. From the host, I can ping successfully to a variety of network devices AND the guest OS. But from my workstation, I can only ping the HOST, not the guest. And it looks like the packets are being discarded. IPtables is NOT enabled on either the guest or the host (our application does not support iptables filtering - go figure). I am seeing lots of documentation for enabling outbound pings from guest, but very little about enabling inbound pings. And again, our software relies on pings for parts of its operations and validations. Any clues as to what I might have missed? Thanks, DAVID -- David A. Lane, KG4GIY EC/RO Prince William County ARES®/RACES +1.703.628.3868 http://www.pwcares.org/ http://www.linuxjournal.com/forums/hot-topics/ham-radio IM/Skype/Twitter: kg4giy

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