November 2013 - Users - libvirt List Archives

[libvirt-users] some problem with snapshot by libvirt
by xingxing gao 21 Nov '14

21 Nov '14

Hi,all,i am using libvirt to manage my vm,in these days i am testing the libvirt snapshot ,but meet some problem: the snapshot was created from this command: snapshot-create-as win7 --disk-only --diskspec vda,snapshot=external --diskspec hda,snapshot=no but when i tried to revert from the snapshot which created from the above command ,i got error below: virsh # snapshot-revert win7 1338041515 --force error: unsupported configuration: revert to external disk snapshot not supported yet version: virsh # version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 Running hypervisor: QEMU 1.0.93

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[libvirt-users] libvirt, lvm thin provisioning
by Michael Mol 04 Dec '13

04 Dec '13

I know that lvm supports thin provisioning, and I think I have a pretty good grasp on how that works. Does libvirt support lvm thin provisioning and thin snapshots? I know that in order to set up lvm thin provisioning by hand, I have to create a thin-provisioning pool within the volume group, and then thin-provisioned logical volumes and thin-provisioned snapshots can be created within that thin-provision pool. I also know that it's possible to have more than one thin-provisioning pool within the same volume group, which tells me that in order to properly set up any lvm-aware application to use thin-provisioning, I may need to inform it which thin-provisioning pool it should base LVs and snapshots from. When I look at the example here: http://libvirt.org/storage.html#StorageBackendLogical I don't see anything particular which tells me it supports building off a thin-provisioning pool if I specify such by name. Checking here: http://libvirt.org/formatstorage.html#StoragePool I again don't see anything specific about logical thick vs thin provisioning. I would expect to see *something*, as there are performance consequences when making such choices, so I'm again not sure libvirt recognizes a difference. So is this something that libvirt can do? And is there good documentation somewhere on the subject?

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[libvirt-users] FYI: Wiki account self-registration disabled
by Daniel P. Berrange 29 Nov '13

29 Nov '13

Unfortunately evil spammers have managed to defeat all the anti-spam measures we've tried with the wiki. So it is with regret that we have had to disable new wiki account self-registration. We do still welcome contributions from anyone interested in adding wiki content. We just ask that you send a mail to the main devel mailing list (libvir-list(a)redhat.com) to request an account be created for you by the wiki admin. Meanwhile we're hoping to migrate the wiki to new hosting service where we'll be able to deploy newer wiki software and thus hopefully better anti-spam measures. When this happens we'll look at re-enabling self-registration of accounts. 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] Socket getting closed automatically after destroying vm.
by cool dharma06 29 Nov '13

29 Nov '13

hi all, i am experimenting libvirt-1.1.4 with my xen-4.2.1. virsh working fine when creating the vm. but it getting crashed or closed after destroying vm. the output is as follows: virsh # create /opt/i-47FD0798/libvirt_sec.xml Domain Customer1_Db_domU created from /opt/i-47FD0798/libvirt_sec.xml virsh # list Id Name State ---------------------------------------------------- 1 Sample running virsh # destroy 5 error: Failed to destroy domain 5 error: End of file while reading data: Input/output error error: One or more references were leaked after disconnect from the hypervisor error: Failed to reconnect to the hypervisor virsh # version error: failed to connect to the hypervisor error: no valid connection error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection refused

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[libvirt-users] Fw:Migration errors
by Tony Gong 26 Nov '13

26 Nov '13

have found the cause..migration goes well -------- Forwarding messages -------- From: "Tony Gong" <gong790802715(a)163.com> Date: 2013-11-26 09:15:08 To: libvirt-users(a)redhat.com Subject: Migration errors hi everyone: when I exc command: virsh migrate --live --unsafe --persistent --undefinesource --verbose winxp32 qemu+ssh://192.168.20.149/system tcp://192.168.20.149:16000 or virsh migrate --live --unsafe --persistent --verbose winxp32 qemu+ssh://192.168.20.149/system tcp://192.168.20.149:16000 some errors output: 1.Migration: error: Domain not found: no domain with matching name 'VM-****' 2.Migration: error: Requested operation is not valid: domain 'VM-***' is not processing incoming migrtion 3.Migration: error: Unable to read from monitor: Connection reset by peer :i think it is that connection broken:modles restart,FW destroy the connection 4.Migration: error: operation failed: domain is no longer running 5.warning: virGetHostname:2265: getaddrinfo failed for 'nc02':Temporary failure in name resolution

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[libvirt-users] Migration errors
by Tony Gong 26 Nov '13

26 Nov '13

hi everyone: when I exc command: virsh migrate --live --unsafe --persistent --undefinesource --verbose winxp32 qemu+ssh://192.168.20.149/system tcp://192.168.20.149:16000 or virsh migrate --live --unsafe --persistent --verbose winxp32 qemu+ssh://192.168.20.149/system tcp://192.168.20.149:16000 some errors output: 1.Migration: error: Domain not found: no domain with matching name 'VM-****' 2.Migration: error: Requested operation is not valid: domain 'VM-***' is not processing incoming migrtion 3.Migration: error: Unable to read from monitor: Connection reset by peer :i think it is that connection broken:modles restart,FW destroy the connection 4.Migration: error: operation failed: domain is no longer running 5.warning: virGetHostname:2265: getaddrinfo failed for 'nc02':Temporary failure in name resolution

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[libvirt-users] Help required in simulating libvirt TLS server
by Arun Viswanath 26 Nov '13

26 Nov '13

Hi All, Will some one explain how is this tls libvirt server is implemented. For my testing purpose I need to implement the similar TLS server in Java or Python and this server is capable to receive all libvirt calls like getCapabilities, hostname etc and return response as I'm configured. Basically I need to simulate the libvirt TLS server. I tried creating many TLS server but none of the my TLS server implemenation is capable to do proper handshake with python libvirt client and do successful calls. Any ideas or help will be appreciable. Thanks In Advance, Arun V

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[libvirt-users] Hypervisor load much greater than that of the guest
by Damion Parry 25 Nov '13

25 Nov '13

Hello, I've got a situation where I have a couple of vm's running at 300+% cpu on the hypervisor: 9893 qemu 20 0 13.0g 8.2g 4256 S 328.0 4.3 59793:17 qemu-kvm Yet the load within the vm is in the regions of: 1.00, 1.02, 0.98 Everything is reporting OK on both the hypervisor & guest, guest is a qcow2 image on local storage. If anyone could point me in the right direction to start debugging this I'd be grateful. Hypervisor: CentOS release 6.4 (Final) 2.6.32-358.23.2.el6.x86_64 qemu-kvm-0.12.1.2-2.355.0.1.el6_4.9.x86_64 libvirt-0.10.2-18.el6_4.14.x86_64 Guest: CentOS release 6.4 (Final) 2.6.32-358.14.1.el6.x86_64 Thanks in advance, Damion. Fubra is a company limited by shares and registered in England and Wales with number 3967214 at Manor Coach House, Church Hill, Aldershot, Hampshire, GU12 4RQ. We are registered for VAT with number GB733667024, and as a data controller with number Z5193400. We are members of RIPE, Nominet, The Italian RA and registered with OfCom as a provider of electronic communications service.

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[libvirt-users] Help with Vrbr0
by Sherin A 25 Nov '13

25 Nov '13

Hello, I am not able to see vrbr0 in my box. Can some one help me with this ? . I am trying KVM+libvirt and planing to use Routed mode. I hope this virbr0 must be up for using this . I can give an strace too. OS : Debian , kernel 3.12.0 libvrit version : 0.9.8 ____________________________________________________________________ root@:~# ifconfig br0 Link encap:Ethernet HWaddr 4c:72:b9:32:32:86 inet addr:10.0.0.12 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::4e72:b9ff:fe32:3286/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4523 errors:0 dropped:0 overruns:0 frame:0 TX packets:4068 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2286336 (2.2 MB) TX bytes:411238 (411.2 KB) eth0 Link encap:Ethernet HWaddr 4c:72:b9:32:32:86 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:17044 errors:0 dropped:0 overruns:0 frame:0 TX packets:14253 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12594945 (12.5 MB) TX bytes:1902456 (1.9 MB) Interrupt:20 Memory:f7c00000-f7c20000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:240 (240.0 B) TX bytes:240 (240.0 B) ------------------------------------------------------------------- root@:~# virsh net-start default error: Failed to start network default error: failed to add iptables rule to enable masquerading root@:~# virsh net-list --all Name State Autostart ----------------------------------------- default inactive yes root@:~# virsh net-start default error: Failed to start network default error: failed to add iptables rule to enable masquerading root@:~# id uid=0(root) gid=0(root) groups=0(root) --------------- -- -------------------------------------- Sherin A

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[libvirt-users] Scientific Linux as guest. Can't install with virt-manager because key "tab" in use
by E Gerlach 23 Nov '13

23 Nov '13

Please help, I can't install Scientific Linux 6.3 with virt-manager because the key tab switches between kvm windows. I urgently need tab to go on in install process. see screenshot: http://aiai.de/foren/scientificLinux_tab.png Even in fullscreen mode tab changes to kvm window and not to button "continue" for installation process. please help, I want to install scientific linux as kvm guest. I'm running debian wheezy as host. thx Eckard

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[libvirt-users] Query:: Reg: Libvirt Networking
by Nehal J Wani 22 Nov '13

22 Nov '13

Currently, I have two networks configured via xml: virsh # net-dumpxml TestNetwork1 <network connections='2'> <name>TestNetwork1</name> <uuid>a76f665a-0196-4edb-81b4-340944a6869c</uuid> <forward dev='p1p1' mode='nat'> <nat> <port start='1024' end='65535'/> </nat> <interface dev='p1p1'/> </forward> <bridge name='virbr0' stp='on' delay='0'/> <mac address='52:54:00:0b:e9:35'/> <ip address='192.168.100.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.100.128' end='192.168.100.254'/> </dhcp> </ip> </network> virsh # net-dumpxml default6 <network connections='1'> <name>default6</name> <uuid>6e57d831-f09e-4b33-950d-6d51c89f9786</uuid> <forward mode='nat'/> <bridge name='virbr3' stp='on' delay='0'/> <mac address='52:54:00:cb:c5:50'/> <ip family='ipv6' address='2001:db8:ca2:2::1' prefix='64'> <dhcp> <range start='2001:db8:ca2:2:1::10' end='2001:db8:ca2:2:1::ff'/> </dhcp> </ip> </network> # brctl show bridge name bridge id STP enabled interfaces virbr0 8000.5254000be935 yes virbr0-nic vnet0 vnet1 virbr3 8000.525400cbc550 yes virbr3-nic vnet2 My queries are: (i) For each interface that I attach to my guests, will a new vnetX (X=0,1,2,3,...) be created? (ii) Can two different active networks share the same bridge? Example, can the xml of two active networks have the same line <bridge name='virbr0' stp='on' delay='0'/> ? (iii) If the answer for (ii) is false, how can I obtain the interface name for a given bridge name in libvirt? -- Nehal J Wani

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[libvirt-users] centos4.8 system container not working on fedora 19 machine
by Rahul Khengare 22 Nov '13

22 Nov '13

Hi All, I am trying to evaluate whether centos-4.8 system container work on Fedora-19 machine or not. Host machine : Fedora 19 Guest (LXC container) : CentOS4 .8 For creation of of container i followed following steps, 1. Installed libvirt packages on fedora19 2. For installation of rootfs using yum, I have created the LOCAL YUM REPO using CentOS-4.8 ISO files 3. Created rootfs using yum 4. Made changes in container xml file required for system container 5 .Define container using container xml file Whenever I start system container it get started successfully but when I am trying to access it using console then It show errors regarding /etc/fstab files and filesystem corruption. I am not able to access the container. Refer below for container xml file and error message, contents of xml file for Centos container, *Centos4_8.xml:* <domain type='lxc'> <name>BasicCentos</name> <memory unit='KiB'>102400</memory> <currentMemory unit='KiB'>102400</currentMemory> <os> <type>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/lxc/centos4.8'/> <target dir='/'/> </filesystem> <interface type='bridge'> <source bridge='br0'/> </interface> <console type='pty' port='0'></console> </devices> </domain> ------------- *ERROR LOG* When trying to access container using CONSOLE command, virsh # console BasicCentos Connected to domain BasicCentos Escape character is ^] INIT: version 2.85 booting /etc/rc.d/rc.sysinit: line 36: [: /sys/fs/selinux: binary operator expected Setting default font (): [ OK ] Welcome to CentOS release 4.8 (Final) Press 'I' to enter interactive startup. hwclock: KDGHWCLK ioctl failed, errno=25: Inappropriate ioctl for device. Cannot access the Hardware Clock via any known method. Use the --debug option to see the details of our search for an access method. Setting clock : Thu Nov 21 01:48:58 EST 2013 [ OK ] Starting udev: MAKEDEV: error making /dev/tty1: Operation not permitted [FAILED] Initializing hardware... storage network audio done [ OK ] raidautorun: unable to autocreate /dev/md0 mount: can't find /dev/pts in /etc/fstab or /etc/mtab Configuring kernel parameters: [ OK ] Setting hostname centos: [ OK ] Checking root filesystem fsck.ext2: Is a directory while trying to open / /: The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> [FAILED] *** An error occurred during the file system check. *** Dropping you to a shell; the system will reboot *** when you leave the shell. *** Warning -- SELinux is active *** Disabling security enforcement for system recovery. *** Run 'setenforce 1' to reenable. /etc/rc.d/rc.sysinit: line 52: $selinuxfs/enforce: ambiguous redirect Press enter for maintenance (or type Control-D to continue): (Repair filesystem) 1 # exit Unmounting file systems mount: can't find / in /etc/fstab or /etc/mtab Automatic reboot in progress. thanks in advance. Regards, Rahul Khengare, NTT OSS Center, Pune, India.

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[libvirt-users] facing some error in launching VM
by cool dharma06 21 Nov '13

21 Nov '13

hi, i am using libvirt-1.1.3 in eucalyptus 2.0.3. When starting the Vm i am facing the following error: i got these error from the nc.log: [EUCAERROR ] ERROR: key injection / tune2fs command failed [EUCAERROR ] libvirt: internal error: client socket is closed (code=1) [EUCAFATAL ] hypervisor failed to start domain i checked in libvirtd.log its not showing any error. How to solve this error.? Any suggestions.?? regards, cooldharma06.

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[libvirt-users] how to install libvirt-python
by Mahmood Naderan 21 Nov '13

21 Nov '13

Hi, I have successfully installed libvirt-.0.10.0 from source ./configure make make install How can I check that if libvirt-python is installed? Search the folders, it seems there is no such file [root@tiger ~]# find /usr/ -name libvirt-python [root@tiger ~]# find . -name libvirt-python [root@tiger ~]# Regards, Mahmood

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[libvirt-users] how to use virtio-blk-data-plane in libvirt
by Hui Kai Ran 21 Nov '13

21 Nov '13

Hi, I learned that there is a new technology - virtio-blk-data-plane introduced in qemu to bring a leap in IO performance to KVM. Has this feature been supported in libvirt? if it's, how to configure xml to support this feature? thanks.

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[libvirt-users] libvirt-sandbox on Ubuntu with SELinux
by boden 21 Nov '13

21 Nov '13

I'm attempting to build/use libvirt-sandbox on Ubuntu 12.xx. Although I'm still working through dependency issues (including the need for libvirt >= 1.0.2 which is not packaged for ubuntu 12.xx) to build the sandbox code, I have a forward looking question. It appears libvirt-bin for Ubuntu likes apparmor as does most Ubuntu based packages using a LSM impl. However, as I understand libvirt-sandbox is integrated with SELinux to provide security isolation of containers... My question becomes -- *should* libvirt-sandbox work on Ubuntu assuming I use the ubuntu libvirt-bin package and replace apparmor with selinux? Or am I flat out walking into quicksand on Ubuntu here? Without the security aspect of libvirt-sandbox, I wonder if its viable on ubuntu for those looking to mitigate container security? Thanks

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[libvirt-users] Error facing when starting the VM.
by cool dharma06 21 Nov '13

21 Nov '13

Hi, i am using eucalyptus -2.0.3 and libvirt 1.1.3 for xen -4.2.1. i found this error when starting the Vm via euca2ools(euca-run-instances) the error details are as follows: *libvirt: internal error: client socket is closed (code=1) * *hypervisor failed to start domain* But from virsh i checked everything is working fine. I dont know why the socket is getting closed when accessing from eucalyptus. GIve some suggestions to solve this error. Regards, cooldharma06.

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[libvirt-users] Unable to configure libvirt
by Mahmood Naderan 20 Nov '13

20 Nov '13

Hello, When I want to install libvirt-0.10.0 from source, I get this error at the configure stage checking for libdevmapper.h... no configure: error: You must install device-mapper-devel/libdevmapper >= 1.0.0 to compile libvirt However the package is installed on my system # yum list device-mapper-libs.x86_64 Installed Packages device-mapper-libs.x86_64 1.02.74-10.el6 @base/$releasever What is the problem then? Regards, Mahmood

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[libvirt-users] Failed to access the console after starting the lxc container
by Aarti Sawant 20 Nov '13

20 Nov '13

Hello, I am starting the system container without "/" directory So that it can share the host /bin /sbin /lib and /lib64 and i have sepeartely mounted /var, /etc and /usr directory for the container Below is xml file <domain type='lxc'> <name>test6</name> <memory>102400</memory> <os> <type>exe</type> <init>/sbin/init</init> </os> <vcpu>1</vcpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <console type='pty'/> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/lxc/test6/etc'/> <target dir='/etc'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/lxc/test6/var'/> <target dir='/var'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/lxc/test6/usr'/> <target dir='/usr'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/pg_data/'/> <target dir='/pg_data'/> </filesystem> <filesystem type='ram' accessmode='passthrough'> <source usage='0' units='KiB'/> <target dir='/dev/shm'/> </filesystem> <interface type='bridge'> <source bridge='br0' /> </interface> </devices> </domain> when i start the container it get start , but when i try to access console it get stuck virsh # list Id Name State ---------------------------------------------------- 18238 test4 running 20435 test6 running virsh # virsh # start test6 Domain test6 started virsh # console test6 Connected to domain test6 Escape character is ^] But when i mount the "/" in xml it works, i have also share host /bin,/sbin, /lib and /lib64. <domain type='lxc'> <name>test4</name> <memory>102400</memory> <os> <type>exe</type> <init>/sbin/init</init> </os> <vcpu>1</vcpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <console type='pty'/> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/lxc/test4/'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/bin'/> <target dir='/bin'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/sbin'/> <target dir='/sbin'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/lib'/> <target dir='/lib'/> </filesystem> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/lib64'/> <target dir='/lib64'/> </filesystem> <filesystem type='mount' accessmode='passthrough'> <source dir='/pg_data/'/> <target dir='/pg_data'/> </filesystem> <filesystem type='ram' accessmode='passthrough'> <source usage='0' units='KiB'/> <target dir='/dev/shm'/> </filesystem> <interface type='bridge'> <source bridge='br0' /> </interface> </devices> </domain> as i am new , can anyone explain me why my test6 container get stuck? And in system container if we need to share host filesystem y we need to mount them explicitly? Thanks, Aarti Sawant NTTDATA OSS Center Pune

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[libvirt-users] virsh and multi source-dev
by Matthieu Simonin 20 Nov '13

20 Nov '13

Hi, I'm using LVM based storage pools and I'm wondering if there is a way to specify several source-dev on the command line for creating a volume group spread over several devices : one device /dev/sdc1 is ok: * virsh pool-define-as --name lvmpool --type logical --source-dev /dev/sdc1 --source-name vg --target /dev/vg I would like something like (but sadly doesn't work): ? virsh pool-define-as --name lvmpool --type logical --source-dev /dev/sdc1 --source-dev /dev/sdb1 --source-name vg --target /dev/vg ? Best regards, Matt

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[libvirt-users] libivrt issue report , 1.1.0 version, while migrate VMs between two hosts, is it solved or other way to avoid it, thanks
by Guozhonghua 20 Nov '13

20 Nov '13

Libivrt 1.1.0 Migrate VM between two hosts using shell scripts. The issues is occurred about every 5 minutes, using gdb and the back trace is below: (gdb) c Continuing. [New Thread 0x7f78e7c11700 (LWP 48116)] [New Thread 0x7f78cf7fe700 (LWP 48129)] [New Thread 0x7f78ceffd700 (LWP 48306)] [New Thread 0x7f78ce7fc700 (LWP 62351)] [New Thread 0x7f78cdffb700 (LWP 62694)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7f78ed24a700 (LWP 46120)] 0x00007f78ef553579 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) bt #0 0x00007f78ef553579 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007f78ef555a45 in malloc () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007f78ef545ae3 in vasprintf () from /lib/x86_64-linux-gnu/libc.so.6 #3 0x00007f78f07a3e54 in virVasprintf (strp=0x7f78ed249b38, fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p", list=0x7f78ed249c00) at util/virstring.c:334 #4 0x00007f78f077d998 in virLogVMessage (source=VIR_LOG_FROM_FILE, priority=VIR_LOG_DEBUG, filename=0x7f78f0959bed "rpc/virnetserver.c", linenr=182, funcname=0x7f78f095a500 "virNetServerHandleJob", metadata=0x0, fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p", vargs=0x7f78ed249c00) at util/virlog.c:836 #5 0x00007f78f077d85d in virLogMessage (source=VIR_LOG_FROM_FILE, priority=VIR_LOG_DEBUG, filename=0x7f78f0959bed "rpc/virnetserver.c", linenr=182, funcname=0x7f78f095a500 "virNetServerHandleJob", metadata=0x0, fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p") at util/virlog.c:773 #6 0x00007f78f08acd86 in virNetServerHandleJob (jobOpaque=0x7f78f305f6a0, opaque=0x7f78f304a360) at rpc/virnetserver.c:181 #7 0x00007f78f07a8a5e in virThreadPoolWorker (opaque=0x7f78f304a0a0) at util/virthreadpool.c:144 #8 0x00007f78f07a842a in virThreadHelper (data=0x7f78f3049ec0) at util/virthreadpthread.c:205 #9 0x00007f78ef897e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #10 0x00007f78ef5c54bd in clone () from /lib/x86_64-linux-gnu/libc.so.6 #11 0x0000000000000000 in ?? () (gdb) frame 6 #6 0x00007f78f08acd86 in virNetServerHandleJob (jobOpaque=0x7f78f305f6a0, opaque=0x7f78f304a360) at rpc/virnetserver.c:181 181 rpc/virnetserver.c: No such file or directory. (gdb) p job $1 = (virNetServerJobPtr) 0x7f78f305f6a0 (gdb) p srv $2 = (virNetServerPtr) 0x7f78f304a360 (gdb) p job->client $3 = (virNetServerClientPtr) 0x7f78f3054a60 (gdb) p job->msg $4 = (virNetMessagePtr) 0x7f78f3051480 (gdb) p job->prog $5 = (virNetServerProgramPtr) 0x7f78f3054c60 (gdb) $6 = (virNetServerProgramPtr) 0x7f78f3054c60 (gdb) frame 5 #5 0x00007f78f077d85d in virLogMessage (source=VIR_LOG_FROM_FILE, priority=VIR_LOG_DEBUG, filename=0x7f78f0959bed "rpc/virnetserver.c", linenr=182, funcname=0x7f78f095a500 "virNetServerHandleJob", metadata=0x0, fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p") at util/virlog.c:773 773 util/virlog.c: No such file or directory. (gdb) frame 3 #3 0x00007f78f07a3e54 in virVasprintf (strp=0x7f78ed249b38, fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p", list=0x7f78ed249c00) at util/virstring.c:334 334 util/virstring.c: No such file or directory. (gdb) p strp $7 = (char **) 0x7f78ed249b38 (gdb) p *strp $8 = 0x0 (gdb) p list $9 = (struct __va_list_tag *) 0x7f78ed249c00 (gdb) p *list $10 = {gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7f78ed249ce8, reg_save_area = 0x7f78ed249c20} ------------------------------------------------------------------------------------------------------------------------------------- ???????????????????????????????????????? ???????????????????????????????????????? ???????????????????????????????????????? ??? This e-mail and its attachments contain confidential information from H3C, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!

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[libvirt-users] Using hostdev to plug a PCI-E host device into Q35 pcie-root port
by Thomas Kuther 19 Nov '13

19 Nov '13

Hello, I'm trying to migrate a working qemu command line configuration to libvirt. The part I'm currently failing on is: $ qemu-system-x86_64 -M Q35 ... -device vfio-pci,host=05:00.0,bus=pcie.0 The right way to translate this into libvirt XML seems to be using <hostdev>, but I seem to be unable to plug it into the pcie-root port This is how the interesting part looks like when I let "virsh edit" generate an <address> <controller type='pci' index='0' model='pcie-root'/> <controller type='pci' index='1' model='dmi-to-pci-bridge'> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </controller> <controller type='pci' index='2' model='pci-bridge'> <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/> </controller> [...] <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x02' slot='0x06' function='0x0'/> </hostdev> [...] To my understanding, this will plug the host device into the pci-bridge controller. The guest OS doesn't boot with this and resets right after bios. Manually setting <address type='pci' domain='0x0000' bus='0x00' slot='0x1E' function='0x0'/> cause XML validation failure. Is there any way in libvirt XML to plug a host's PCI-E device directly into the pcie-root port, like it works on qemu command line? I'm aware I could use something like <qemu:commandline> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=05:00.0,bus=pcie.0'/> </qemu:commandline> but I insist on running the VM as non-root, and if I got that right I need to configure at least one vfio device (or memory locking) in order for libvirt to set a proper RLIMIT_MEMLOCK value. Any help would be be appreciated. Regards, Thomas

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Re: [libvirt-users] Unable to use more than 4 serial devices at once.
by Cole Robinson 19 Nov '13

19 Nov '13

On 11/17/2013 09:18 PM, Matthew Harrold wrote: > On Sun, Nov 17, 2013 at 7:44 PM, Cole Robinson <crobinso(a)redhat.com > <mailto:crobinso@redhat.com>> wrote: > On 11/17/2013 01:26 PM, Matthew Harrold wrote: > > Hi All. > > > > I'm trying to setup a guest within my hypervisor that acts as a Console > > Server, using 10 USB to Serial adapters. The Host is all setup and can > access > > each Serial Port without problems. > > > > I have attempted to add the Serial Connections to a Guest, using both > Virtual > > Machine Manager and by editing the .XML file, and I can add up to 4 Serial > > devices (Including one for console access to the guest) without any > issues at > > all. However when I try to add a fifth , the virtual machine refuses to > start > > > > > > Distro: Ubuntu 13.04 > > Kernel: 3.8.0-33-generic > > libvirtd: 1.0.2 > > QEMU:1.4.0 (Debian 1.4.0+dfsg-1expubuntu4) > > > > The log- > > > > _4 Serial Devices_ > > > > 2013-11-17 17:37:45.901+0000: starting up > > LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin > > QEMU_AUDIO_DRV=none /usr/bin/kvm -name Ubuntu12.04-Cisco -S -M pc-1.0 -m > 1024 > > -smp 2,sockets=2,cores=1,threads=1 -uuid > 1837c56f-6f84-2abe-8bdd-d7c974803b84 > > -no-user-config -nodefaults -chardev > > > socket,id=charmonitor,path=/var/lib/libvirt/qemu/Ubuntu12.04-Cisco.monitor,server,nowait > > -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown > > -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive > > > file=/mnt/DiskRepo/Ubuntu12.04-TFTP.qcow2,if=none,id=drive-virtio-disk0,format=qcow2 > > -device > > > virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 > > -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device > > ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev > > tap,fd=31,id=hostnet0,vhost=on,vhostfd=32 -device > > > virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:e6:9c:c0,bus=pci.0,addr=0x3 > -chardev > > pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 > -chardev > > tty,id=charserial1,path=/dev/c1841-A -device > > isa-serial,chardev=charserial1,id=serial1 -chardev > > tty,id=charserial2,path=/dev/c2620-A -device > > isa-serial,chardev=charserial2,id=serial2 -chardev > > tty,id=charserial3,path=/dev/c2620-B -device > > isa-serial,chardev=charserial3,id=serial3 -vnc 0.0.0.0:0 > <http://0.0.0.0:0> <http://0.0.0.0:0> > > -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 > > W: kvm binary is deprecated, please use qemu-system-x86_64 instead > > char device redirected to /dev/pts/0 (label charserial0) > > > > > > _5 Serial Devices_ > > > > 2013-11-17 18:05:59.925+0000: starting up > > LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin > > QEMU_AUDIO_DRV=none /usr/bin/kvm -name Ubuntu12.04-Cisco -S -M pc-1.0 -m > 1024 > > -smp 2,sockets=2,cores=1,threads=1 -uuid > 1837c56f-6f84-2abe-8bdd-d7c974803b84 > > -no-user-config -nodefaults -chardev > > > socket,id=charmonitor,path=/var/lib/libvirt/qemu/Ubuntu12.04-Cisco.monitor,server,nowait > > -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown > > -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive > > > file=/mnt/DiskRepo/Ubuntu12.04-TFTP.qcow2,if=none,id=drive-virtio-disk0,format=qcow2 > > -device > > > virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 > > -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device > > ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev > > tap,fd=31,id=hostnet0,vhost=on,vhostfd=32 -device > > > virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:e6:9c:c0,bus=pci.0,addr=0x3 > -chardev > > pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 > -chardev > > tty,id=charserial1,path=/dev/c1841-A -device > > isa-serial,chardev=charserial1,id=serial1 -chardev > > tty,id=charserial2,path=/dev/c2620-A -device > > isa-serial,chardev=charserial2,id=serial2 -chardev > > tty,id=charserial3,path=/dev/c2620-B -device > > isa-serial,chardev=charserial3,id=serial3 -chardev > > tty,id=charserial4,path=/dev/c2950-A -device > > isa-serial,chardev=charserial4,id=serial4 -vnc 0.0.0.0:0 > <http://0.0.0.0:0> <http://0.0.0.0:0> > > -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 > > W: kvm binary is deprecated, please use qemu-system-x86_64 instead > > char device redirected to /dev/pts/0 (label charserial0) > > qemu-system-x86_64: -device isa-serial,chardev=charserial4,id=serial4: > Device > > 'isa-serial' could not be initialized > > 2013-11-17 18:06:00.314+0000: shutting down > > > > Does anyone have any idea what's causing this? I have attempted using > > different Serial to USB adapters to rule out a hardware / configuration > issue > > on one of the adapters, but it makes no difference. If I try to start more > > than 4 Serial Devices, it refuses to start up. > > > Pretty sure that's just a qemu or PC limit for isa-serial. The alternative is > to use virtio serial which can handle many more ports. > - Cole > > > That sounds likely. Is there any documentation covering 'binding' a host > serial port to a virtio serial device? I've search but not found anything > relevant. > Hmm, that's a good question. Actually it doesn't look like there is any way to have <serial> use virtio. You can use channel to get something close, like: <channel type='pty'> <target type='virtio' name='my.port.2'/> </channel> However it won't appear as ttyS0 in the guest so it might not fit your usecase. Recent qemu has a PCI serial device which should allow for more than 4 serial ports, but support isn't wired up in libvirt yet. - Cole

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[libvirt-users] Asterisk, pci passthrough, and pri card
by Mauricio Tavares 19 Nov '13

19 Nov '13

Has anyone been successfully running asterisk in libvirt with a pri card? I thought we had it working but we seem to be experiencing long (1h+) calls being dropped.

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[libvirt-users] macvtap direct and ip spoofing
by vlad halilov 19 Nov '13

19 Nov '13

Hi there. I have configured kvm domain (rhel6.4) with ethernet bridged over macvtap, and found no filtration applied except mac. 'virsh' just silently ignoring attributes 'filterref' and 'ip address' in different formats. No error on validate stage. Config examples: ... <interface type='direct'> <mac address='52:54:00:31:ae:1a'/> <source dev='em1' mode='private'/> <filterref filter='clean-traffic'> <parameter name='IP' value='10.1.101.44'/> </filterref> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> ... or like these: ... <interface type='direct'> <mac address='52:54:00:31:ae:1a'/> <source dev='em1' mode='private'/> <ip address='10.1.101.44'/> <filterref filter='clean-traffic'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> ... With 'virsh create domain.xml', vm created, but dumpxml show that filterref is disappeared. I have not found any success stories with filtering rules and 'direct' interface types. Is it supported with this type? Or may be other tricks to protect network from vm spoofing and direct type? - vlad f halilov

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