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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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[libvirt-users] Anyone interested in forming a libvirt "docs" team?
by Justin Clift 21 Dec '10

21 Dec '10

Hi all, There's a lot of documentation for libvirt that needs improving, so wondering if anyone would be interested in forming a libvirt "docs" team to help make that happen? While some of the documentation needs people familiar with specific pieces of libvirt, there's also a lot that doesn't, and just needs people with some free time and willingness to help. Anyone up for it? :) Regards and best wishes, Justin Clift

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[libvirt-users] private DNS servers & dnsmasq
by Quint Van Deman 21 Dec '10

21 Dec '10

Hello-- I'm trying to work through the last piece of the puzzle regarding dns resolution for my guests. To do so I'd like to be able to pass the following to the dnsmasq child process: -S /private.net/127.0.0.1 (as referenced in the dnsmasq man page) -S /sub.private.net/127.0.0.1 However, I cannot find any documentation that suggests the xml schema defining the virtual network supports this option. Is there a way of doing this? The ability to pass a '-q' (log queries) would be nice too for debugging purposes. My DNS setup is all working properly (as confirmed with dig & server overrides throughout the environment), but resolv.conf based resolution isn't able to find servers for either of those two domains (dnsmasq is trying to resolve them via an upstream server, which obviously fails). Thanks for any advice. -Quint

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