March 2012 - Users - libvirt List Archives

[libvirt-users] Does libvirt check MCS labels during hot-add disk image ?
by Onkar N Mahajan 22 Mar '12

22 Mar '12

Libvirt doesn't care about security during hot add disk images. It even accepts addition of disk images of other guest running on the host. Steps followed to create this scenario : Started two VMs with following security configurations: vm1: <seclabel type='dynamic' model='selinux' relabel='yes'> <label>system_u:system_r:svirt_t:s0:c219,c564</label> <imagelabel>system_u:object_r:svirt_image_t:s0:c219,c564</imagelabel> </seclabel> vm2 : <seclabel type='dynamic' model='selinux' relabel='yes'> <label>system_u:system_r:svirt_t:s0:c122,c658</label> <imagelabel>system_u:object_r:svirt_image_t:s0:c122,c658</imagelabel> </seclabel> # virsh list --all Id Name State ---------------------------------- 28 vm1 running 29 vm2 running # ls -lZ /var/lib/libvirt/images/ -rw-------. qemu qemu system_u:object_r:svirt_image_t:s0:c219,c564 vm1.img -rw-------. qemu qemu system_u:object_r:svirt_image_t:s0:c122,c658 vm2.img # ps auxZ | grep qemu-kvm | grep -v grep system_u:system_r:svirt_t:s0:c219,c564 qemu 15744 47.2 5.8 2757852 472224 ? Sl 11:47 0:18 /usr/libexec/qemu-kvm -S -M rhel6.2.0 -enable-kvm -m 2048 -smp 4,sockets=4,cores=1,threads=1 -name vm1 -uuid d3d3a3ee-4edf-a3d3-8dab-a77740266270 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/vm1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -drive file=/var/lib/libvirt/images/vm1.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive 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 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=27 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:a1:29:45,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -vga cirrus -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 system_u:system_r:svirt_t:s0:c122,c658 qemu 15780 58.4 6.5 3063496 524048 ? Sl 11:47 0:20 /usr/libexec/qemu-kvm -S -M rhel6.2.0 -enable-kvm -m 2048 -smp 4,sockets=4,cores=1,threads=1 -name vm2 -uuid b07607f8-2d03-cc1f-272b-22863667d1a4 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/vm2.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -drive file=/var/lib/libvirt/images/vm2.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive 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 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:e0:76:d1,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:1 -vga cirrus -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 Now, try to add vm1's disk image into vm2 - this must not be allowed - since for virtualized guest images. Only svirt_t processes with the same MCS fields can read/write these images. i.e., for vm2 to access vm1's disk image it's MCS label must be 's0:c660,c689'. Hot addition of vm1's image i.e., /var/lib/libvirt/images/vm1.img is successful ( which must not be allowed ) moreover , MCS label for vm1's image has changed to that of vm2 # ls -lZ /var/lib/libvirt/images/ -rw-------. qemu qemu system_u:object_r:svirt_image_t:s0:c122,c658 vm1.img -rw-------. qemu qemu system_u:object_r:svirt_image_t:s0:c122,c658 vm2.img Trying to read/write on vm1 will generate AVC messages Seen following message in /var/log/audit/audit.log : type=VIRT_RESOURCE msg=audit(1332310867.790:10312): user pid=5114 uid=0 auid=0 ses=3 subj=unconfined_u:system_r:virtd_t:s0-s0:c0.c1023 msg='virt=kvm resrc=disk reason=attach vm="vm2" uuid=b07607f8-2d03-cc1f-272b-22863667d1a4 old-disk="?" new-disk="/var/lib/libvirt/images/vm1.img": exe=2F7573722F7362696E2F6C69627669727464202864656C6574656429 hostname=? addr=? terminal=? res=success' type=AVC msg=audit(1332310963.333:10313): avc: denied { write } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310963.333:10313): arch=c000003e syscall=18 success=no exit=-13 a0=9 a1=7fd3bc59d000 a2=1000 a3=10891b000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310963.337:10314): avc: denied { read } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310963.337:10314): arch=c000003e syscall=295 success=no exit=-13 a0=9 a1=2d24368 a2=4 a3=88664000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310963.338:10315): avc: denied { read } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310963.338:10315): arch=c000003e syscall=17 success=no exit=-13 a0=9 a1=7fd3bce4f000 a2=1000 a3=88664000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310967.954:10316): avc: denied { read } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310967.954:10316): arch=c000003e syscall=295 success=no exit=-13 a0=9 a1=2d43768 a2=3 a3=1907c8000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310967.955:10317): avc: denied { read } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310967.955:10317): arch=c000003e syscall=17 success=no exit=-13 a0=9 a1=7fd3bac95000 a2=1000 a3=1907c8000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310968.594:10318): avc: denied { write } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310968.594:10318): arch=c000003e syscall=18 success=no exit=-13 a0=9 a1=7fd3bded9000 a2=1000 a3=2c3f000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310968.594:10319): avc: denied { write } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310968.594:10319): arch=c000003e syscall=18 success=no exit=-13 a0=9 a1=7fd3b7947000 a2=1000 a3=9db2d000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310968.594:10320): avc: denied { write } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310968.594:10320): arch=c000003e syscall=296 success=no exit=-13 a0=9 a1=2d6c0f8 a2=b a3=18851e000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) type=AVC msg=audit(1332310968.598:10321): avc: denied { write } for pid=16241 comm="qemu-kvm" path="/var/lib/libvirt/images/vm1.img" dev=sda1 ino=6431944 scontext=system_u:system_r:svirt_t:s0:c219,c564 tcontext=system_u:object_r:svirt_image_t:s0:c122,c658 tclass=file type=SYSCALL msg=audit(1332310968.598:10321): arch=c000003e syscall=18 success=no exit=-13 a0=9 a1=7fd383b0f000 a2=1000 a3=18842e000 items=0 ppid=1 pid=16241 auid=0 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=3 comm="qemu-kvm" exe="/usr/libexec/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c219,c564 key=(null) restricting vm1 read/write it's own image. Changing seclabels with virsh/virt-manager is not supported so defined a new XML with <seclabel type='dynamic' model='selinux' relabel='no'> <label>system_u:system_r:svirt_t:s0:c110,c401</label> <imagelabel>system_u:object_r:svirt_image_t:s0:c110,c401</imagelabel> </seclabel> but when I try to define it , gives me error : # virsh define vm3.xml error: Failed to define domain from vm3.xml error: unsupported configuration: dynamic label type must use resource relabeling looks like it's not possible to assign relabel='no' with dynamic labelling. libvirt/src/conf/domain_conf.c : if (def->type == VIR_DOMAIN_SECLABEL_DYNAMIC && def->norelabel) { virDomainReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("dynamic label type must use resource relabeling")); goto error; } -- Onkar N Mahajan System Software Engineer, IBM Linux Technology Center, Bangalore,India

2 1

[libvirt-users] MIPS emulation ....
by William A. Mahaffey III 21 Mar '12

21 Mar '12

.... When I query my qemu-mips under FC14 64-bit, libvirt.x86_64 0.8.3-10.fc14, qemu 2:0.13.0-1.fc14, I see the following: [root@Q6600:/etc, Wed Mar 21, 03:24 PM] 1022 # qemu-mips -cpu ? MIPS '4Kc' MIPS '4Km' MIPS '4KEcR1' MIPS '4KEmR1' MIPS '4KEc' MIPS '4KEm' MIPS '24Kc' MIPS '24Kf' MIPS '34Kf' [root@Q6600:/etc, Wed Mar 21, 03:24 PM] 1023 # I don't recognize any of these, I was hoping for either IPnn or R10k/12k/14k, etc. I would like to try to set up an SGI guest to run IRIX 5.3 or 6.5.nn to have availability of their compilers. Are these older CPUs supported under qemu-mips emulation ? Is there some crossover info on the above listed CPUs (i.e. one of these might in fact be what I need) ? Has anyone on-list done this ? How did it work out :-) ? TIA for any pointers .... -- William A. Mahaffey III ---------------------------------------------------------------------- "The M1 Garand is without doubt the finest implement of war ever devised by man." -- Gen. George S. Patton Jr.

1 0

[libvirt-users] Number of same HDD-Images
by BrnPnk 21 Mar '12

21 Mar '12

Hey, I set up a new kvm host. (Ubuntu 10.04 x64, up-to-date) I created a new vm with virt-manager and three hdd-images (raw-format): - 30 GB (System, virtio) - 1,7 TB (System, virtio) - 1,7 TB (System, virtio) The VM (whatever linux or windows) detects only two of them. When I change all to IDE -> same problem. But when change one to IDE and the others to virtio it works. Apparently only max two images of the same type are detected. What can I do to use three virtio-devices? Thanking in anticipation

1 0

[libvirt-users] XML syntax for "dir" attribute when making Host directory available to Windows guest
by Cameron Smith 21 Mar '12

21 Mar '12

Hi, I have the following setup: Host: Ubuntu 10.04 Guest: Windows 2008 R2 Kernel: 2.6.32-40-generic virt-inst: 0.500.1-2ubuntu6.2 qemu-kvm: 0.12.3+noroms-0ubuntu9.18 All is working, however I would now like to share a given directory on the host with the guest. Using the "virsh edit" command I have prepared the following XML configuration snippet: <filesystem type='mount'> <source dir='/home/cameron/zip/hla'/> <target dir='/mnt/hla'/> </filesystem> My problem is the "target" element - what value should I use in the "dir" attribute, given that Windows drive paths do not follow Unix format (e.g. "F:\" versus "/mnt/hla"). Can any help? regards, cameron

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[libvirt-users] Error when executing virsh command to ESX
by li_fuqiong 21 Mar '12

21 Mar '12

To Whom It May Concern: I use virsh windows 0.9.3 to connect an esx server 4.0 with no_verify=1. The Esx server is intel 2 x 3.19 GHZ CPU, 8G memroy and 2 TB hard disk. following is my execute commands and results. virsh -c esx://xxx.xxx.xxx.x?no_verify=1 virsh # list all Id Name State ---------------------------------- 80 win2003_122 running virsh # nodeinfo error: failed to get node information error: out of memory virsh # dumpxml win2003_122 error: internal error Invalid or not yet handled value '/vmfs/devices/genscsi/mp x.vmhba0:C0:T1:L0' for VMX entry 'scsi0:1.fileName' virsh # edit win2003_122 error: internal error Invalid or not yet handled value '/vmfs/devices/genscsi/mp x.vmhba0:C0:T1:L0' for VMX entry 'scsi0:1.fileName' virsh # destroy win2003_122 Domain win2003_122 destroyed virsh # start win2003_122 Domain win2003_122 started virsh # edit win2003_122 error: internal error Invalid or not yet handled value '/vmfs/devices/genscsi/mp x.vmhba0:C0:T1:L0' for VMX entry 'scsi0:1.fileName' question: 1.Why error when executeing dumpxml and edit command? How to fix it? 2.Why out of memory when nodeinfo. How to fix it? I have only one test vm on my esx server. Thanks in advance. Mark

1 0

[libvirt-users] error starting virtual machine manager
by Su Zhang 20 Mar '12

20 Mar '12

Hi Community, I encountered an error while launching the virtual machine manger. I believe that all services have been started including libvirtd, xend, xencommons, etc. But not sure the reason about this error. Here is the error information: Error starting Virtual Machine Manager: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Failed to get connection to session: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) Traceback (most recent call last): File "/usr/share/virt-manager/virt-manager.py", line 383, in <module> main() File "/usr/share/virt-manager/virt-manager.py", line 315, in main config = virtManager.config.vmmConfig(appname, appversion, glade_dir) File "/usr/share/virt-manager/virtManager/config.py", line 96, in __init__ self.conf.add_dir(self.conf_dir, gconf.CLIENT_PRELOAD_NONE) GError: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Failed to get connection to session: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) Does anyone have any ideas on this error? Thanks in advance, -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University

1 0

[libvirt-users] libvirt and SNMP agent
by Ricardo Hillbrecht 20 Mar '12

20 Mar '12

Hi all I'm working in a MIB to manage virtual machines using SNMP regardless of VMM manufacturer. To demonstrate this MIB, I plan to insert libvirt functions inside an SNMP agent (NET-SNMP agent). Does anyone know if there is some work using net-snmp and libvirt together, or can give advice about this ? Thanks Hillbrecht

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[libvirt-users] Can libvirt set or change the IP address of guest machine
by Harold Fei 19 Mar '12

19 Mar '12

To Whom It May Concern: I use libvirt over one month, I need a function to set the ip address of the guest machine. One can change the guest ip address will be a great appreciation. However, I did not find such a feature in the process of learning libvirt. The purpose of this mail is to ask the experts whether libvirt provide such a feature. If there is no, how can I implement such functionality. Additionally, I already know NAT based network and Routed network can use DHCP, but I want to use an existing host bridge. Best Wishes Harold

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[libvirt-users] manage VM without root access?
by Jun Koi 19 Mar '12

19 Mar '12

hi, with libvirt, is it possible to manage VMs (using virsh, for e.g) without root access? if that is possible, how can i do that? many thanks, Jun

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Re: [libvirt-users] no connection driver available for No connection for URI xen:///
by Su Zhang 17 Mar '12

17 Mar '12

Here it is: # ll /usr/lib64/libvirt.so.0 lrwxrwxrwx. 1 root root 16 Mar 12 21:19 /usr/lib64/libvirt.so.0 -> libvirt.so.0.9.4 So you meant that I used a wrong libvirt.so? How can I correct this? On Thu, Mar 15, 2012 at 10:52 PM, Alex Jia <ajia(a)redhat.com> wrote: > ** > On 03/16/2012 11:41 AM, Su Zhang wrote: > > > > On Thu, Mar 15, 2012 at 10:20 PM, Alex Jia <ajia(a)redhat.com> wrote: > >> On 03/16/2012 11:02 AM, Su Zhang wrote: >> >> >> >> On Thu, Mar 15, 2012 at 9:45 PM, Alex Jia <ajia(a)redhat.com> wrote: >> >>> On 03/16/2012 05:33 AM, Su Zhang wrote: >>> >>> >>> >>> On Thu, Mar 15, 2012 at 4:20 PM, Eric Blake <eblake(a)redhat.com> wrote: >>> >>>> On 03/15/2012 02:57 PM, Su Zhang wrote: >>>> > Hi all, >>>> > >>>> > I am trying to use virt-install to install domU image. However, I >>>> > encountered the following issue. It seems that a connection driver is >>>> > needed for Xen. >>>> > I am new to both libvirt and Xen. Anyone have any ideas on what's >>>> wrong >>>> > with the following error ? >>>> > >>>> > >>>> > >>>> > # virt-install --connect=xen:/// -p -d >>>> > Thu, 15 Mar 2012 10:17:55 DEBUG Launched with command line: >>>> > /usr/bin/virt-install --connect=xen:/// -p -d >>>> > Thu, 15 Mar 2012 10:17:55 DEBUG Requesting libvirt URI xen:/// >>>> > Thu, 15 Mar 2012 10:17:55 ERROR no connection driver available for >>>> No >>>> > connection for URI xen:/// >>>> >>>> This probably means that your copy of libvirt.so and libvirtd was built >>>> without xen support. What does >>>> >>>> virsh --version=long >>>> >>>> say? Also, are you sure libvirtd is running? >>>> >>> In addition, I want to know your libvirt.so, libvirtd, xend location, >>> for example, >>> # which libvirtd >>> # which xend >>> # locate libvirt.so >>> >>> Please also make sure xend service is running: >>> # service xend status >>> >>> >>>> -- >>>> Eric Blake eblake(a)redhat.com +1-919-301-3266 >>>> Libvirt virtualization library http://libvirt.org >>>> >>>> >>> Eric, >>> >>> Here is the output: >>> # virsh --version=long >>> Virsh command line tool of libvirt 0.9.10 >>> See web site at http://libvirt.org/ >>> >>> Compiled with support for: >>> Hypervisors: Xen QEmu/KVM UML OpenVZ VirtualBox LXC Test >>> Networking: Remote Daemon Network Bridging Nwfilter VirtualPort >>> Storage: Dir Filesystem SCSI Multipath iSCSI LVM >>> Miscellaneous: SELinux Secrets Debug >>> >>> It seems that it does support Xen. >>> >>> Yeah, Xen indeed appears in Hypervisors line. >>> >>> >>> I am not sure if libvirtd is running so I use the following command to >>> start it: >>> >>> [root@XenTester srv]# /etc/rc.d/init.d/libvirtd start >>> >>> Right, you may also use service libvirtd start, and check it by service >>> libvirtd status or ps -ef|grep libvirtd. >>> >>> >>> But the same error is still there. >>> >>> Am I using the right way to start libvirtd service? Are there any other >>> possible reasons of this error? >>> >>> >>> Thanks, >>> >>> -- >>> Su Zhang >>> Ph.D Candidate >>> Computing and Information Sciences >>> Kansas State University >>> >>> >>> _______________________________________________ >>> libvirt-users mailing listlibvirt-users@redhat.comhttps://www.redhat.com/mailman/listinfo/libvirt-users >>> >>> >>> Alex, >> >> Here is some information: >> >> # /etc/init.d/xencommons start >> Starting xenstored... >> Setting domain 0 name... >> Starting xenconsoled... >> [root@XenTester su]# /etc/init.d/xend start >> [root@XenTester su]# which libvirtd >> /usr/local/sbin/libvirtd >> [root@XenTester su]# which xend >> /usr/sbin/xend >> [root@XenTester su]# locate libvirt.so >> /usr/lib64/libvirt.so.0 >> /usr/lib64/libvirt.so.0.9.4 >> /usr/local/lib/libvirt.so >> /usr/local/lib/libvirt.so.0 >> /usr/local/lib/libvirt.so.0.9.10 >> >> You have 2 different libvirt versions 0.9.4 and 0.9.10, and your 0.9.10 >> is put under the >> /usr/local/lib directory, so I guess you haven't used ./configure with >> --prefix=/usr option >> or directly use ./autogen.sh --system when you configure and compile >> libvirt. >> >> And also please yum install strace -y if you haven't installed strace >> rpm, then run the following operation: >> >> # strace -o strace.txt virt-install --connect=xen:/// -p >> >> Then attach strace.txt as a attachment. >> >> Thanks, >> Alex >> >> > Alex, > > Thanks. I have run ./autogen.sh --system. And "make" and "make install" > the libvirt once again. > I encountered one type of errors while running "make install", it seems > that the installer is looking for a bunch of HTML files under > /usr/bin/install. here is the error info: > > /usr/bin/install: cannot stat `./api.html': No such file or directory > /usr/bin/install: cannot stat `./api_extension.html': No such file or > directory > /usr/bin/install: cannot stat `./apps.html': No such file or directory > /usr/bin/install: cannot stat `./archdomain.html': No such file or > directory > /usr/bin/install: cannot stat `./architecture.html': No such file or > directory > /usr/bin/install: cannot stat `./archnetwork.html': No such file or > directory > /usr/bin/install: cannot stat `./archnode.html': No such file or directory > (there are still tens of HTML files missing) > .... > > It's not important for our issues. > > > Do you think this type of errors will affect the functionality of libvirt? > Also, I checked and it seems that I've the latest strace package > installed. So I run "strace -o strace.txt virt-install --connect=xen:/// > -p". > Please find strace.txt attached. > > I saw virt-install is opening /usr/lib64/libvirt.so.0 in strace.txt: > > open("/usr/lib64/libvirt.so.0", O_RDONLY) = 7 > > > I want to confirm whether you're using compiling libvirt 0.9.10, > ll /usr/lib64/libvirt.so.0 say what? > > Thanks, > Alex > > > Thanks, > >> [root@XenTester su]# service xend status >> [root@XenTester su]# ps -ef|grep libvirtd >> root 2242 1 0 21:52 ? 00:00:00 libvirtd --daemon >> root 3295 3112 0 21:59 pts/0 00:00:00 grep libvirtd >> >> Can you see if it is normal here? >> >> Thanks, >> >> >> -- >> Su Zhang >> Ph.D Candidate >> Computing and Information Sciences >> Kansas State University >> >> >> > > > -- > Su Zhang > Ph.D Candidate > Computing and Information Sciences > Kansas State University > > > -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University

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Re: [libvirt-users] virsh create error : monitor socket did not (Alex Jia)
by Josir Cardoso Gomes 16 Mar '12

16 Mar '12

Hi Alex, when I got this error, it was a vnc listener problem. Is there other actives vms on this server? try to change the port number to see if the problem was solved. <graphics type='vnc' listen='0.0.0.0' port='5909'/> Good Luck. Josir Gomes Date: Thu, 15 Mar 2012 18:07:07 +0800 > From: Alex Jia <ajia(a)redhat.com> > To: ??? <zhanggp(a)neusoft.com> > Cc: "libvirt-users(a)redhat.com" <libvirt-users(a)redhat.com> > Subject: Re: [libvirt-users] ??: ??: virsh create error : monitor > socket did not > Message-ID: <4F61BF4B.2030103(a)redhat.com> > Content-Type: text/plain; charset="gb2312" > > On 03/15/2012 05:39 PM, ??? wrote: > > sorry , i send an error template , our template like this: > It probably is a bug on libvirt 0.8.7, and I haven't met this issue > using your XML template on > rhel6.2 with libvirt-0.9.10-5.el6.x86_64, I'm not sure whether this > issue is fixed on 0.8.7-18.el6_1.4, > maybe, you may upgrade your libvirt and then try it again. > > For libvirtd log, yeah, it will be very big if you set a low debugger > level such as level 1, but > as usual, we need also some debugger information except for error, > maybe, you can filter > some important information or set debugger level to higher level to > avoid a big size log file. > in addition, if you're run virt-manager please close it, otherwise, > libvirt will record many > debugger information into libvirtd.log. > > BTW, if you don't want log file eat your the whole disk space, please > remember to change > libvirtd.conf debugger level then remove libvirtd.log and restart > libvirtd service. > > Regards, > Alex > > <domain type='kvm' > > xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> > > <name>one-9</name> > > <vcpu>1</vcpu> > > <memory>524288</memory> > > <os> > > <type arch='x86_64'>hvm</type> > > <boot dev='hd'/> > > </os> > > <devices> > > <emulator>/usr/bin/kvm</emulator> > > <disk type='file' device='disk'> > > <source file='/one_images/9/images/disk.0'/> > > <target dev='hda'/> > > <driver name='qemu' type='raw' cache='default'/> > > </disk> > > <disk type='file' device='cdrom'> > > <source file='/one_images/9/images/disk.1'/> > > <target dev='hdc'/> > > <readonly/> > > <driver name='qemu' type='raw'/> > > </disk> > > <interface type='bridge'> > > <source bridge='kvmbr0'/> > > <mac address='02:00:0b:01:01:03'/> > > </interface> > > <graphics type='vnc' listen='0.0.0.0' port='5909'/> > > </devices> > > <features> > > <acpi/> > > </features> > > </domain> > > ------------------------------------------------------------------------ > > ??? > > *????* ??? <mailto:zhanggp@neusoft.com> > > *?????* 2012-03-15 17:25 > > *????* Alex Jia <mailto:ajia@redhat.com> > > *???* ??: Re: [libvirt-users] virsh create error : monitor socket > > did not > > Hi? > > my libvirt version is 0.8.7 and qemu-kvm-0.12.1.2 on redhat6.1. > > I don't set libvirt log, so thank you for reminding me. > > I think my template is right ,because my code generate automatically. > > But i would like to share with you and find the problem. > > By the way , i configured the libvirt log, and i find this file kept > > getting bigger. If this file becomes large enough , i don't think it's > > a good thing , so, you must have some advise to handle it ,right? > > Thanks. > > ------------------------------------------------------------------------ > > ??? > > *????* Alex Jia <mailto:ajia@redhat.com> > > *?????* 2012-03-15 16:56 > > *????* ??? <mailto:zhanggp@neusoft.com> > > *???* libvirt-users <mailto:libvirt-users@redhat.com> > > *???* Re: [libvirt-users] virsh create error : monitor socket did not > > On 03/15/2012 11:31 AM, ??? wrote: > >> Hi, > >> Occasionally I run into this situation , i created a vm-template and > >> i use "virsh create vm-template " to start a vm .After a pause , i > >> got this error : > >> virsh create error : monitor socket did not ; > > Could you provide your libvirt & qemu-kvm version ? what's your > > platform? fedora or others? > >> Then i try again with the same template and the same command , my vm > >> created successfully. > >> I try to find something in the file of > >> /var/log/libvrit/qemu/vm-template.log, but i cannot find useful > >> things except some parameters. > > However, it's helpful if you may attach the above log as a attachment. > > in addition, you may add the following lines into > > /etc/libvirt/libvirtd.conf and restart libvirtd service then repeat > > 'virsh create vm-template' again: > > > > log_filters="3:remote 3:event 1:qemu 1:libvirt 1:conf" > > log_outputs="1:file:/var/log/libvirt/libvirtd.log" > > > > Could you attach /var/log/libvirt/libvirtd.log as a attachment in here? > >> So , i wonder whether my host running vms too much ? I make sure that > >> my template is right, and this error occasionally appear a few times. > > But if you can attach your guest XML template as a attachment, maybe, > > I can exclude other reason. > > > > Regards, > > Alex > >> Can someone teach me ? > >> Thanks. > >> Best regards. > >> ------------------------------------------------------------------------ > >> ??? > >> tel: 13718913184 > >> mail: zhanggp(a)neusoft.com <mailto:zhanggp@neusoft.com> > >> ???????? > >> ?????????? > >> http://www.neusoft.com > >> > --------------------------------------------------------------------------------------------------- > >> Confidentiality Notice: The information contained in this e-mail and > >> any accompanying attachment(s) > >> is intended only for the use of the intended recipient and may be > >> confidential and/or privileged of > >> Neusoft Corporation, its subsidiaries and/or its affiliates. If any > >> reader of this communication is > >> not the intended recipient, unauthorized use, forwarding, printing, > >> storing, disclosure or copying > >> is strictly prohibited, and may be unlawful.If you have received this > >> communication in error,please > >> immediately notify the sender by return e-mail, and delete the > >> original message and all copies from > >> your system. Thank you. > >> > --------------------------------------------------------------------------------------------------- > >> > >> > >> > >> _______________________________________________ > >> libvirt-users mailing list > >> libvirt-users(a)redhat.com > >> https://www.redhat.com/mailman/listinfo/libvirt-users > > > > > --------------------------------------------------------------------------------------------------- > > Confidentiality Notice: The information contained in this e-mail and > > any accompanying attachment(s) > > is intended only for the use of the intended recipient and may be > > confidential and/or privileged of > > Neusoft Corporation, its subsidiaries and/or its affiliates. If any > > reader of this communication is > > not the intended recipient, unauthorized use, forwarding, printing, > > storing, disclosure or copying > > is strictly prohibited, and may be unlawful.If you have received this > > communication in error,please > > immediately notify the sender by return e-mail, and delete the > > original message and all copies from > > your system. Thank you. > > > --------------------------------------------------------------------------------------------------- > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20120315/d9139b5d… > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: not available > Type: image/jpeg > Size: 11635 bytes > Desc: not available > URL: < > https://www.redhat.com/archives/libvirt-users/attachments/20120315/d9139b5d… > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 27, Issue 27 > ********************************************* >

1 0

[libvirt-users] no connection driver available for No connection for URI xen:///
by Su Zhang 16 Mar '12

16 Mar '12

Hi all, I am trying to use virt-install to install domU image. However, I encountered the following issue. It seems that a connection driver is needed for Xen. I am new to both libvirt and Xen. Anyone have any ideas on what's wrong with the following error ? # virt-install --connect=xen:/// -p -d Thu, 15 Mar 2012 10:17:55 DEBUG Launched with command line: /usr/bin/virt-install --connect=xen:/// -p -d Thu, 15 Mar 2012 10:17:55 DEBUG Requesting libvirt URI xen:/// Thu, 15 Mar 2012 10:17:55 ERROR no connection driver available for No connection for URI xen:/// Thu, 15 Mar 2012 10:17:55 DEBUG Traceback (most recent call last): File "/usr/bin/virt-install", line 1004, in <module> sys.exit(main()) File "/usr/bin/virt-install", line 984, in main conn = cli.getConnection(options. connect) File "/usr/lib/python2.6/site-packages/virtinst/cli.py", line 327, in getConnection conn = open_connection(uri) File "/usr/lib/python2.6/site-packages/virtinst/cli.py", line 342, in open_connection open_flags) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 102, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: no connection driver available for No connection for URI xen:/// By the way, Xen is installed successfully as both "xm list" and "xm info" can output appropriately. Thanks, -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University

3 5

[libvirt-users] Prevent starting a guest concurrently on multiple hosts when using shared storage
by Andreas Ntaflos 16 Mar '12

16 Mar '12

Hi list, Scenario: Libvirt managing KVM-based guests on multiple physical virtualisation hosts. These hosts are attached to some kind of shared storage, be it NFS, GFS2 or whatever. Guest images live on the shared storage so that VMs can be migrated (live or not) between the physical hosts. Basically all Libvirt hosts have definitions of all guests. How can I prevent the same guest from being started on different hosts concurrently, either by accident or intentionally? As far as I can see there is no locking or similar mechanism that would indicate to the Libvirt daemon that a guest (and its VM image) is already running on/in use by another host. This might be a very basic question but I can't seem to find a satisfying answer. Is it even possible? Or does using a shared storage mean that one has to be really, really careful what to start, and where? Is this even something for which Libvirt should be responsible? Any insight is appreciated. Thanks, Andreas

3 2

[libvirt-users] Host does not support virtualization type 'xen'
by Su Zhang 15 Mar '12

15 Mar '12

Hello Community, I successfully installed and run xen (xm list and xm info (but virt_caps only has hvm) can output appropriately). However, while I was installing domU image by using virt-install -p at domU OS. I encountered an error information" Host does not support virtualization type 'xen' ". I built xen from source. Some of my friends have the same issue, but if they use pre-build xen, the issue will go away. However, I want to insist in using my version of xen (build from source). Does anyone can give any hint about this error? I asked the same question at xen community and they said this is not a issue from xen but libvirt. Meanwhile they told me I need to rebuild libvirt to adapt my current version of Xen. However, after I re-build xen (download, decompress, ./configure, make, make install), the error is still there. Can anyone let me know if I built the libvirt correctly? Do I need to do anything specific to my current version (4.1.2) of Xen? I'll appreciate if any suggestions can be given, Thanks, -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University

3 11

[libvirt-users] Setup a network
by Felix Blanke 15 Mar '12

15 Mar '12

Hello, this isn't a bug report or an advanced usage question. This is just a question from a noob who is new to kvm and needs some help to setup a network between the host and the guests. If you're willing to spend a little time to help me out please continue reading :) See the attached image for more information. I have a host running with a public ip adress. I want to setup some vm for different tasks (webserver, mailserver, database, fileserver). I need to setup a network where the host can speak to the guests, the guest can speak to each other and the guests can speak to the host (meaning to the internet). The host also works as a firewall. Some examples: A) A package for the webserver (port 80) needs to be routed fron the host to the vm1. B) The mailserver needs to access the database. C) The mailserver needs to access the internet for sending an email. So every vm needs one interface. I don't know if it would work if I setup one virtual switch for the guest interconnections and use the host as a router to route the different ports to the vm interfaces. I hope this wasn't so confusing :) What would be the best way to accomplish my goal using virt-install and virsh. Thanks for everyone who is trying to help me out. Kind regards, Felix

3 5

Re: [libvirt-users] 回复: 回复: virsh create error : monitor socket did not
by Alex Jia 15 Mar '12

15 Mar '12

On 03/15/2012 05:39 PM, 张光鹏 wrote: > sorry , i send an error template , our template like this: It probably is a bug on libvirt 0.8.7, and I haven't met this issue using your XML template on rhel6.2 with libvirt-0.9.10-5.el6.x86_64, I'm not sure whether this issue is fixed on 0.8.7-18.el6_1.4, maybe, you may upgrade your libvirt and then try it again. For libvirtd log, yeah, it will be very big if you set a low debugger level such as level 1, but as usual, we need also some debugger information except for error, maybe, you can filter some important information or set debugger level to higher level to avoid a big size log file. in addition, if you're run virt-manager please close it, otherwise, libvirt will record many debugger information into libvirtd.log. BTW, if you don't want log file eat your the whole disk space, please remember to change libvirtd.conf debugger level then remove libvirtd.log and restart libvirtd service. Regards, Alex > <domain type='kvm' > xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> > <name>one-9</name> > <vcpu>1</vcpu> > <memory>524288</memory> > <os> > <type arch='x86_64'>hvm</type> > <boot dev='hd'/> > </os> > <devices> > <emulator>/usr/bin/kvm</emulator> > <disk type='file' device='disk'> > <source file='/one_images/9/images/disk.0'/> > <target dev='hda'/> > <driver name='qemu' type='raw' cache='default'/> > </disk> > <disk type='file' device='cdrom'> > <source file='/one_images/9/images/disk.1'/> > <target dev='hdc'/> > <readonly/> > <driver name='qemu' type='raw'/> > </disk> > <interface type='bridge'> > <source bridge='kvmbr0'/> > <mac address='02:00:0b:01:01:03'/> > </interface> > <graphics type='vnc' listen='0.0.0.0' port='5909'/> > </devices> > <features> > <acpi/> > </features> > </domain> > ------------------------------------------------------------------------ > 张光鹏 > *发件人：* 张光鹏 <mailto:zhanggp@neusoft.com> > *发送时间：* 2012-03-15 17:25 > *收件人：* Alex Jia <mailto:ajia@redhat.com> > *主题：* 回复: Re: [libvirt-users] virsh create error : monitor socket > did not > Hi， > my libvirt version is 0.8.7 and qemu-kvm-0.12.1.2 on redhat6.1. > I don't set libvirt log, so thank you for reminding me. > I think my template is right ,because my code generate automatically. > But i would like to share with you and find the problem. > By the way , i configured the libvirt log, and i find this file kept > getting bigger. If this file becomes large enough , i don't think it's > a good thing , so, you must have some advise to handle it ,right? > Thanks. > ------------------------------------------------------------------------ > 张光鹏 > *发件人：* Alex Jia <mailto:ajia@redhat.com> > *发送时间：* 2012-03-15 16:56 > *收件人：* 张光鹏 <mailto:zhanggp@neusoft.com> > *抄送：* libvirt-users <mailto:libvirt-users@redhat.com> > *主题：* Re: [libvirt-users] virsh create error : monitor socket did not > On 03/15/2012 11:31 AM, 张光鹏 wrote: >> Hi, >> Occasionally I run into this situation , i created a vm-template and >> i use "virsh create vm-template " to start a vm .After a pause , i >> got this error : >> virsh create error : monitor socket did not ; > Could you provide your libvirt & qemu-kvm version ? what's your > platform? fedora or others? >> Then i try again with the same template and the same command , my vm >> created successfully. >> I try to find something in the file of >> /var/log/libvrit/qemu/vm-template.log, but i cannot find useful >> things except some parameters. > However, it's helpful if you may attach the above log as a attachment. > in addition, you may add the following lines into > /etc/libvirt/libvirtd.conf and restart libvirtd service then repeat > 'virsh create vm-template' again: > > log_filters="3:remote 3:event 1:qemu 1:libvirt 1:conf" > log_outputs="1:file:/var/log/libvirt/libvirtd.log" > > Could you attach /var/log/libvirt/libvirtd.log as a attachment in here? >> So , i wonder whether my host running vms too much ? I make sure that >> my template is right, and this error occasionally appear a few times. > But if you can attach your guest XML template as a attachment, maybe, > I can exclude other reason. > > Regards, > Alex >> Can someone teach me ? >> Thanks. >> Best regards. >> ------------------------------------------------------------------------ >> 张光鹏 >> tel: 13718913184 >> mail: zhanggp(a)neusoft.com <mailto:zhanggp@neusoft.com> >> 移动互联网事业部 >> 东软集团股份有限公司 >> http://www.neusoft.com >> --------------------------------------------------------------------------------------------------- >> Confidentiality Notice: The information contained in this e-mail and >> any accompanying attachment(s) >> is intended only for the use of the intended recipient and may be >> confidential and/or privileged of >> Neusoft Corporation, its subsidiaries and/or its affiliates. If any >> reader of this communication is >> not the intended recipient, unauthorized use, forwarding, printing, >> storing, disclosure or copying >> is strictly prohibited, and may be unlawful.If you have received this >> communication in error,please >> immediately notify the sender by return e-mail, and delete the >> original message and all copies from >> your system. Thank you. >> --------------------------------------------------------------------------------------------------- >> >> >> >> _______________________________________________ >> libvirt-users mailing list >> libvirt-users(a)redhat.com >> https://www.redhat.com/mailman/listinfo/libvirt-users > > --------------------------------------------------------------------------------------------------- > Confidentiality Notice: The information contained in this e-mail and > any accompanying attachment(s) > is intended only for the use of the intended recipient and may be > confidential and/or privileged of > Neusoft Corporation, its subsidiaries and/or its affiliates. If any > reader of this communication is > not the intended recipient, unauthorized use, forwarding, printing, > storing, disclosure or copying > is strictly prohibited, and may be unlawful.If you have received this > communication in error,please > immediately notify the sender by return e-mail, and delete the > original message and all copies from > your system. Thank you. > ---------------------------------------------------------------------------------------------------

1 0

[libvirt-users] virsh create error : monitor socket did not
by 张光鹏 15 Mar '12

15 Mar '12

Hi, Occasionally I run into this situation , i created a vm-template and i use "virsh create vm-template " to start a vm .After a pause , i got this error : virsh create error : monitor socket did not ; Then i try again with the same template and the same command , my vm created successfully. I try to find something in the file of /var/log/libvrit/qemu/vm-template.log, but i cannot find useful things except some parameters. So , i wonder whether my host running vms too much ? I make sure that my template is right, and this error occasionally appear a few times. Can someone teach me ? Thanks. Best regards. 张光鹏 tel: 13718913184 mail: zhanggp(a)neusoft.com 移动互联网事业部东软集团股份有限公司 http://www.neusoft.com --------------------------------------------------------------------------------------------------- Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from your system. Thank you. ---------------------------------------------------------------------------------------------------

2 1

Re: [libvirt-users] Memory statistics for DomU's
by inge85＠web.de 14 Mar '12

14 Mar '12

2 1

[libvirt-users] Memory statistics for DomU's
by inge85＠web.de 14 Mar '12

14 Mar '12

2 1

[libvirt-users] Weird behavior with LVM storage pool on host
by Ernesto Domato 14 Mar '12

14 Mar '12

Hi list, the problem that I'm having seems to be between libvirtd and udev I have two hosts with LVM. The root partition run over this LVM. After booting the machine, if I do "udevadm settle" it responds almost instantly but then if I launch libvirtd the "udevadm settle" command doesn't respond for about 2 to 3 minutes and the only way to solve this is to restart the uded daemon. This behavior happens on both hosts. The only difference between both is that one has the root partition and storage pool over the same LVM group and disk. The other has separate disks and LVM groups. Have someone experienced something like this or can help me how to debug and solve this problem?. Thanks for all. Ernesto

1 0

[libvirt-users] libvirt with sanlock
by Frido Roose 14 Mar '12

14 Mar '12

Hello, I configured libvirtd with the sanlock lock manager plugin: # rpm -qa | egrep "libvirt-0|sanlock-[01]" libvirt-lock-sanlock-0.9.4-23.el6_2.4.x86_64 sanlock-1.8-2.el6.x86_64 libvirt-0.9.4-23.el6_2.4.x86_64 # egrep -v "^#|^$" /etc/libvirt/qemu-sanlock.conf auto_disk_leases = 1 disk_lease_dir = "/var/lib/libvirt/sanlock" host_id = 4 # mount | grep sanlock /dev/mapper/kvm--shared-sanlock on /var/lib/libvirt/sanlock type gfs2 (rw,noatime,hostdata=jid=0) # cat /etc/sysconfig/sanlock SANLOCKOPTS="-R 1 -o 30" I increased the sanlock io_timeout to 30 seconds (default = 10), because the sanlock dir is on a GFS2 volume and can be blocked for some time while fencing and journal recovery takes place. With the default sanlock io timeout, I get lease timeouts because IO is blocked: Mar 5 15:37:14 raiti sanlock[5858]: 3318 s1 check_our_lease warning 79 last_success 3239 Mar 5 15:37:15 raiti sanlock[5858]: 3319 s1 check_our_lease failed 80 So far, all fine, but when I restart sanlock and libvirtd, it takes about 2 * 30 seconds = 1 minute before libvirtd is usable. "virsh list" hangs during this time. I can still live with that... But it gets worse after a reboot, when running a "virsh list" even takes a couple of minutes (like about 5 minutes) before it responds. After this initial time, virsh is responding normally, so it looks like an initialization issue to me. Is this a configuration issue, a bug, or expected behavior? Thanks for any advice... Frido

4 5

[libvirt-users] message on console by starting virt-manager , gentoo
by Marko Weber 12 Mar '12

12 Mar '12

# virt-manager /usr/share/virt-manager/virt-manager.py:306: DeprecationWarning: Importing dbus.glib to use the GLib main loop with dbus-python is deprecated. Instead, use this sequence: from dbus.mainloop.glib import DBusGMainLoop DBusGMainLoop(set_as_default=True) import dbus.glib ist that for interesr for the developers?

2 1

[libvirt-users] run virsh as non-root user
by Qu, John (IS) 12 Mar '12

12 Mar '12

Hi, I have encountered problem running virsh as non-root user. I am using eucalyptus software on top of KVM, eucalyptus requires to run virsh as non-root user. I've found that people had similiar issue posted in the list, but I didn't find the solution. I've tried few things. 1) put user eucalyptus in the libvirt group. 2) even changed owner /var/run/libvirt/libvirt-sock to eucalyptus. it didn't help. the followins showed some debug information. I would appreciate your help. export LIBVIRT_DEBUG=1 [eucalyptus@hp-a ~]$ virsh list 21:48:08.342: 5830: info : libvirt version: 0.9.4, package: 23.el6_2.4 (CentOS BuildSystem <http://bugs.centos.org>, 2012-01-17-10:52:29, c6b18n1.dev.centos.org) 21:48:08.342: 5830: debug : virInitialize:415 : register drivers 21:48:08.342: 5830: debug : virRegisterDriver:770 : driver=0x3848dc5c40 name=Test 21:48:08.342: 5830: debug : virRegisterDriver:794 : registering Test as driver 0 21:48:08.342: 5830: debug : virRegisterNetworkDriver:587 : registering Test as network driver 0 21:48:08.342: 5830: debug : virRegisterInterfaceDriver:620 : registering Test as interface driver 0 21:48:08.342: 5830: debug : virRegisterStorageDriver:653 : registering Test as storage driver 0 21:48:08.342: 5830: debug : virRegisterDeviceMonitor:686 : registering Test as device driver 0 21:48:08.342: 5830: debug : virRegisterSecretDriver:719 : registering Test as secret driver 0 21:48:08.342: 5830: debug : virRegisterNWFilterDriver:752 : registering Test as network filter driver 0 21:48:08.342: 5830: debug : virRegisterDriver:770 : driver=0x3848dc6e00 name=ESX 21:48:08.342: 5830: debug : virRegisterDriver:794 : registering ESX as driver 1 21:48:08.342: 5830: debug : virRegisterInterfaceDriver:620 : registering ESX as interface driver 1 21:48:08.342: 5830: debug : virRegisterNetworkDriver:587 : registering ESX as network driver 1 21:48:08.342: 5830: debug : virRegisterStorageDriver:653 : registering ESX as storage driver 1 21:48:08.342: 5830: debug : virRegisterDeviceMonitor:686 : registering ESX as device driver 1 21:48:08.342: 5830: debug : virRegisterSecretDriver:719 : registering ESX as secret driver 1 21:48:08.342: 5830: debug : virRegisterNWFilterDriver:752 : registering ESX as network filter driver 1 21:48:08.342: 5830: debug : virRegisterDriver:770 : driver=0x3848dc6440 name=remote 21:48:08.342: 5830: debug : virRegisterDriver:794 : registering remote as driver 2 21:48:08.342: 5830: debug : virRegisterNetworkDriver:587 : registering remote as network driver 2 21:48:08.342: 5830: debug : virRegisterInterfaceDriver:620 : registering remote as interface driver 2 21:48:08.342: 5830: debug : virRegisterStorageDriver:653 : registering remote as storage driver 2 21:48:08.342: 5830: debug : virRegisterDeviceMonitor:686 : registering remote as device driver 2 21:48:08.342: 5830: debug : virRegisterSecretDriver:719 : registering remote as secret driver 2 21:48:08.342: 5830: debug : virRegisterNWFilterDriver:752 : registering remote as network filter driver 2 21:48:08.342: 5830: debug : virEventRegisterDefaultImpl:204 : registering default event implementation 21:48:08.342: 5830: debug : virEventPollAddHandle:112 : Add handle fd=4 events=1 cb=0x3848a40cb0 opaque=(nil) 21:48:08.342: 5830: debug : virEventPollAddHandle:116 : Used 0 handle slots, adding at least 10 more 21:48:08.342: 5830: debug : virEventPollInterruptLocked:676 : Skip interrupt, 0 0 21:48:08.342: 5830: debug : virEventRegisterImpl:177 : addHandle=0x3848a41a90 updateHandle=0x3848a40bb0 removeHandle=0x3848a40a70 addTimeout=0x3848a418f0 updateTimeout=0x3848a40cf0 removeTimeout=0x3848a40970 21:48:08.342: 5830: debug : virConnectOpenAuth:1282 : name=(null), auth=0x3848dc5bc0, flags=0 21:48:08.342: 5830: debug : do_open:1019 : no name, allowing driver auto-select 21:48:08.342: 5830: debug : do_open:1056 : trying driver 0 (Test) ... 21:48:08.342: 5830: debug : do_open:1062 : driver 0 Test returned DECLINED 21:48:08.342: 5830: debug : do_open:1056 : trying driver 1 (ESX) ... 21:48:08.342: 5830: debug : do_open:1062 : driver 1 ESX returned DECLINED 21:48:08.342: 5830: debug : do_open:1056 : trying driver 2 (remote) ... 21:48:08.343: 5830: debug : remoteOpen:825 : Auto-probe remote URI 21:48:08.343: 5830: debug : remoteOpen:828 : Auto-spawn user daemon instance 21:48:08.343: 5830: debug : doRemoteOpen:520 : proceeding with name = 21:48:08.343: 5830: debug : doRemoteOpen:530 : Connecting with transport 1 21:48:08.343: 5830: debug : doRemoteOpen:577 : Proceeding with sockname @/home/eucalyptus/.libvirt/libvirt-sock 21:48:08.343: 5830: debug : virCommandRunAsync:2048 : About to run LC_ALL=C PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/java/jdk1.6.0/jre/bin HOME=/home/eucalyptus USER=eucalyptus LOGNAME=eucalyptus /usr/sbin/libvirtd --timeout=30 21:48:08.343: 5830: debug : virCommandRunAsync:2064 : Command result 0, with PID 5831 21:48:08.345: 5830: debug : virCommandRun:1870 : Result status 0, stdout: '(null)' stderr: '(null)' --------------------------------- [eucalyptus@hp-a ~]$ id uid=501(eucalyptus) gid=501(eucalyptus) groups=501(eucalyptus),0(root),502(libvirt) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 ------------------------------------------------------------- Thanks John

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[libvirt-users] 'virsh list' issue
by wangsuyi640 08 Mar '12

08 Mar '12

Dear all: Afer run the command 'qemu-kvm -hda /root/free.img -m 512 -usbdevice tablet -vga qxl -spice port=5930,disable-ticketing' , and the VM starts natrually. Then I run the command 'virsh list' , it shows as follows: [root@localhost ~]# virsh list Id Name State ---------------------------------- [root@localhost ~]# there is no VM running! I am puzzled , can someone help me? Yours Sinerely! suyi

4 4

[libvirt-users] Setting the default Hypervisor
by RaSca 08 Mar '12

08 Mar '12

Hi all, I'm using libvirt with qemu-kvm and virtualbox on the same system. Everything is working, but I want to change the default uri fo virsh. At the moment, if i run: # virsh uri vbox:///system and because of this, if I try to list my vm(s) in this way: # virsh list --all Id Name State ---------------------------------- the output is empty. I need always to pass the uri: # virsh -c qemu:///system list --all Id Name State ---------------------------------- - ubuntu-vm shut off So, is there a way to set the default uri to be qemu:///system? I looked into /etc/default/libvirt-guests and /etc/default/libvirt-bin but I was not able to find an options (setting URIS= does not work). I'm on Debian Squeeze with backports. Thanks a lot, -- RaSca Mia Mamma Usa Linux: Niente è impossibile da capire, se lo spieghi bene! rasca(a)miamammausalinux.org http://www.miamammausalinux.org

2 4