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[libvirt-users] increase number of libvirt threads by starting tansient guest doamin - is it a bug?
by ustermann78＠web.de 02 Oct '14

02 Oct '14

hello, if i start a transient guest doamin via "virsh create abcd.xml" i see an additional libvirt thread and also some open files: pstree -h `pgrep libvirtd` libvirtd───11*[{libvirtd}] libvirtd 3016 root 21w REG 253,0 6044 1052094 /var/log/libvirt/libxl/abcd.log libvirtd 3016 root 22r FIFO 0,8 0t0 126124 pipe libvirtd 3016 root 23w FIFO 0,8 0t0 126124 pipe libvirtd 3016 root 24u REG 0,37 0 4 /proc/xen/privcmd libvirtd 3016 root 25u unix 0xffff8807d2c3ad80 0t0 126125 socket libvirtd 3016 root 26r FIFO 0,8 0t0 126127 pipe libvirtd 3016 root 27w FIFO 0,8 0t0 126127 pipe libvirtd 3016 root 28r FIFO 0,8 0t0 124783 pipe libvirtd 3016 root 29w FIFO 0,8 0t0 124783 pipe libvirtd 3016 root 30r FIFO 0,8 0t0 127140 pipe libvirtd 3016 root 31w FIFO 0,8 0t0 127140 pipe if i destroy these vm via "virsh destroy abcd", i see that the additional thread still exists and also the list of openfiles is the same. if i start the transient guest domain again, i observe an increase in the number of libvirt threads ans also in the list of openfiles: [root@localhost libxl]# pstree -h `pgrep libvirtd` libvirtd───12*[{libvirtd}] libvirtd 3016 root 21w REG 253,0 13783 1052094 /var/log/libvirt/libxl/abcd.log libvirtd 3016 root 22r FIFO 0,8 0t0 126124 pipe libvirtd 3016 root 23w FIFO 0,8 0t0 126124 pipe libvirtd 3016 root 24u REG 0,37 0 4 /proc/xen/privcmd libvirtd 3016 root 25u unix 0xffff8807d2c3ad80 0t0 126125 socket libvirtd 3016 root 26r FIFO 0,8 0t0 126127 pipe libvirtd 3016 root 27w FIFO 0,8 0t0 126127 pipe libvirtd 3016 root 28r FIFO 0,8 0t0 124783 pipe libvirtd 3016 root 29w FIFO 0,8 0t0 124783 pipe libvirtd 3016 root 30r FIFO 0,8 0t0 127140 pipe libvirtd 3016 root 31w FIFO 0,8 0t0 127140 pipe libvirtd 3016 root 32w REG 253,0 13783 1052094 /var/log/libvirt/libxl/abcd.log libvirtd 3016 root 33r FIFO 0,8 0t0 129039 pipe libvirtd 3016 root 34w FIFO 0,8 0t0 129039 pipe libvirtd 3016 root 35u REG 0,37 0 4 /proc/xen/privcmd libvirtd 3016 root 36u unix 0xffff8807d398bb80 0t0 129040 socket libvirtd 3016 root 37r FIFO 0,8 0t0 129042 pipe libvirtd 3016 root 38w FIFO 0,8 0t0 129042 pipe libvirtd 3016 root 39r FIFO 0,8 0t0 129043 pipe libvirtd 3016 root 40w FIFO 0,8 0t0 129043 pipe libvirtd 3016 root 41r FIFO 0,8 0t0 129044 pipe libvirtd 3016 root 42w FIFO 0,8 0t0 129044 pipe if i destroy the doamin again and define them via "virsh define abcd.xml" and start them then via "virsh start abcd", the number of libvirtd threads don´t increase again and also the number of open files is the same. My question: is it normal that for transient guest domains the created libvirtd thread sill exists and also the open files after i destroy the doamin? or is it bug? thanks max

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[libvirt-users] -device ide-hd not found error when trying to launch vm using xml file create by virsh domxml-from-native qemu-argv demo.args command
by harsh jain 01 Oct '14

01 Oct '14

Hi. When i try to launch VM with command virsh start vm1.It gives following error -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1: Bus 'ide.0' not found When I create the same qemu command from xml again. It show following addition parameter added by virsh in output qemu command 1) -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 2) -device virtio-balloon-device,id=balloon0 I seems parameter 1 added by virsh domxml-from-native qemu-argv demo.args causing the problem. How to correct this. Regards Harsh Jain '

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[libvirt-users] KVM resource analysis
by Adam King 30 Sep '14

30 Sep '14

Morning all, What is the recommended tool for resource analysis on hypervisors? Many thanks, Adam King IT Systems Administrator

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[libvirt-users] PXE booting from specific vNIC using libvirt
by Pasquale Porreca 29 Sep '14

29 Sep '14

Hello I managed yet to create a KVM Virtual Machine with several network interfaces (vNICs) and to make it boot from network using PXE. Anyway I noticed that, if there is no answer from a pxe server on the first vNIC, the dhcp request is sent on every vNIC until it gets a response (or the vNIC list ends). I would like to know if there is a way to specify that the dhcp request should be triggered on a specific interface and if it fails stop or try again on same interface (if rebootTimeout is set). Best Regards -- Pasquale Porreca DEK Technologies Via dei Castelli Romani, 22 00040 Pomezia (Roma) Mobile +39 3394823805 Skype paskporr

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[libvirt-users] Running the test fails virnetmessagetest with libvirt 1.2.8
by Stefano Ricci 29 Sep '14

29 Sep '14

Hello I apologize in advance for my English. I compiled the new version of libvirt 1.2.8 on an environment Development Linux from Scratch with the following configure: configure: Configuration summary configure: ===================== configure: configure: Drivers configure: configure: Xen: no configure: QEMU: yes configure: UML: yes configure: OpenVZ: no configure: VMware: no configure: VBox: yes configure: XenAPI: no configure: xenlight: no configure: LXC: no configure: PHYP: yes configure: ESX: no configure: Hyper-V: no configure: Parallels: no configure: Bhyve: no configure: Test: yes configure: Remote: yes configure: Network: yes configure: Libvirtd: yes configure: Interface: yes configure: macvtap: yes configure: virtport: yes configure: configure: Storage Drivers configure: configure: Dir: yes configure: FS: no configure: NetFS: no configure: LVM: yes configure: iSCSI: yes configure: SCSI: yes configure: mpath: yes configure: Disk: no configure: RBD: no configure: Sheepdog: no configure: Gluster: no configure: ZFS: no configure: configure: Security Drivers configure: configure: SELinux: yes (/sys/fs/selinux) configure: AppArmor: no (install profiles: no) configure: configure: Driver Loadable Modules configure: configure: dlopen: -ldl configure: configure: Libraries configure: configure: apparmor: no configure: attr: yes (CFLAGS='' LIBS='-lattr') configure: audit: no configure: avahi: no configure: blkid: yes (CFLAGS='-I/install/include/blkid -I/install/include/uuid ' LIBS='-L/install/lib -lblkid ') configure: capng: no configure: curl: no configure: dbus: yes (CFLAGS='-I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include ' LIBS='-ldbus-1 ') configure: fuse: yes (CFLAGS='-D_FILE_OFFSET_BITS=64 -I/usr/include/fuse ' LIBS='-lfuse -pthread ') configure: glusterfs: no configure: hal: no configure: netcf: no configure: numactl: no configure: openwsman: no configure: pciaccess: yes (CFLAGS='' LIBS='-lpciaccess ') configure: readline: yes (CFLAGS='' LIBS='-lreadline') configure: sanlock: no configure: sasl: yes (CFLAGS='' LIBS='-lsasl2') configure: selinux: yes (CFLAGS='' LIBS='-lselinux') configure: ssh2: yes (CFLAGS='' LIBS='-lssh2 ') configure: systemd_daemon: no configure: udev: yes (CFLAGS='' LIBS='-ludev ') configure: yajl: yes (CFLAGS='' LIBS='-lyajl') configure: libxml: -I/usr/include/libxml2 -lxml2 configure: dlopen: -ldl configure: openwsman: no configure: gnutls: -lgnutls configure: firewalld: no configure: polkit: no configure: xen: no configure: xenapi: no configure: xenlight: no configure: pcap: -I/usr/include -L/usr/lib -lpcap configure: nl: -I/usr/include/libnl3 -I/usr/include/libnl3 -lnl-3 -lnl-route-3 -lnl-3 configure: mscom: no configure: xdr: configure: rbd: no configure: pm-utils: yes configure: configure: Test suite configure: configure: Coverage: no configure: Alloc OOM: no configure: configure: Miscellaneous configure: configure: Debug: yes configure: Use -Werror: no configure: Warning Flags: -W -Waddress -Waggressive-loop-optimizations -Wall -Warray-bounds -Wattributes -Wbad-function-cast -Wbuiltin-macro-redefined -Wcast-align -Wchar-subscripts -Wclobbered -Wcomment -Wcomments -Wcoverage-mismatch -Wcpp -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero -Wdouble-promotion -Wempty-body -Wendif-labels -Wextra -Wformat-contains-nul -Wformat-extra-args -Wformat-security -Wformat-y2k -Wformat-zero-length -Wfree-nonheap-object -Wignored-qualifiers -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Winit-self -Winline -Wint-to-pointer-cast -Winvalid-memory-model -Winvalid-pch -Wjump-misses-init -Wlogical-op -Wmain -Wmaybe-uninitialized -Wmissing-braces -Wmissing-declarations -Wmissing-field-initializers -Wmissing-include-dirs -Wmissing-parameter-type -Wmissing-prototypes -Wmultichar -Wnarrowing -Wnested-externs -Wnonnull -Wnormalized=nfc -Wold-style-declaration -Wold-style-definition -Woverflow -Woverride-init -Wpacked-bitfield-compat -Wparentheses -Wpointer-arith -Wpointer-sign -Wpointer-to-int-cast -Wpragmas -Wreturn-local-addr -Wreturn-type -Wsequence-point -Wshadow -Wsizeof-pointer-memaccess -Wstrict-aliasing -Wstrict-prototypes -Wsuggest-attribute=const -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure -Wswitch -Wsync-nand -Wtrampolines -Wtrigraphs -Wtype-limits -Wuninitialized -Wunknown-pragmas -Wunused -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-function -Wunused-label -Wunused-local-typedefs -Wunused-parameter -Wunused-result -Wunused-value -Wunused-variable -Wvarargs -Wvariadic-macros -Wvector-operation-performance -Wvolatile-register-var -Wwrite-strings -fdiagnostics-show-option -funit-at-a-time -Wno-sign-compare -Wjump-misses-init -Wno-format-nonliteral -Wframe-larger-than=4096 -fstack-protector-strong -fexceptions -fasynchronous-unwind-tables -fipa-pure-const -Wno-suggest-attribute=pure -Wno-suggest-attribute=const configure: DTrace: no configure: numad: no configure: XML Catalog: /etc/xml/catalog configure: Init script: check configure: Char device locks: /var/lock configure: configure: Developer Tools configure: configure: Wireshark dissector: no configure: configure: Privileges configure: configure: QEMU: root:root The compilation finishes without any problems but in the execution of the tests fails virnetmessagetest. When i tried using the libvirtd running without any problems but I can not run the Connection with the virsh command virsh -c qemu:///system that returns the following error: "Unable to encode message header" and the log shows the error: "virNetSocketReadWire: 1523: End of file while reading dates: Error of input / output". There 's someone who can give me a hand to solve the problem? thanks Stefano

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Re: [libvirt-users] How to configure the container's NIC automatically with an assigned IP address
by WANG Cheng D 28 Sep '14

28 Sep '14

Dear Gene, Thank you for your response. I want to assign a static IP address to my container, I wonder if I can achieve this by editing the container's /etc/sysconfig/network-scripts/ifcfg-eth0. I tried this, but failed, and eth0 is always not assigned an IP address automatically (my host and guest are fedora19). Am I missing something? I don't know much about the booting procedure of a container, and how the network NIC is configured during the booting. The content of container's /etc/sysconfig/network-scripts/ifcfg-eth0 is as follows: BOOTPROTO="static" DEVICE="eth0" TYPE="Ethernet" ONBOOT="yes" IPADDR=192.168.128.15 PREFIX=24 GATEWAY=192.168.128.254 With my warmest regards, Cheng > Dear all, > > I want to run a TCP/IP application automatically after I start the > container using "virsh -c lxc:/// start mycontainer". Does anybody > know how to configure the NIC automatically with an assigned IP > address? I couldn't find useful information from domain XML format > spec and it only talks how to set the mac address > (http://libvirt.org/formatdomain.html) . > > Your response will be highly appreciated. > > Cheng > > Take a look at: http://sandbox.libvirt.org/networking/ Note: Specifying dhcp does not currently work. I have created a patch to fix that. See: https://bugzilla.redhat.com/show_bug.cgi?id=1133686

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[libvirt-users] Missing security model in 1.2.8?
by Gary Hook 26 Sep '14

26 Sep '14

I have successfully (I believe) built (rebuilt on Ubuntu 14.04), installed, and used libvirt 1.2.2. Behaviorally I can't tell the difference between what I've built and what Ubuntu distributes. Specifically, "virsh capabilities" shows this: <secmodel> <model>apparmor</model> <doi>0</doi> </secmodel> <secmodel> <model>dac</model> <doi>0</doi> <baselabel type='kvm'>+112:+113</baselabel> <baselabel type='qemu'>+112:+113</baselabel> </secmodel> Which seems reasonable as well as expected. I build 1.2.8 using the same commands, install the generated packages, recycle, and virsh reports this: <secmodel> <model>none</model> <doi>0</doi> </secmodel> <secmodel> <model>dac</model> <doi>0</doi> <baselabel type='kvm'>+112:+113</baselabel> <baselabel type='qemu'>+112:+113</baselabel> </secmodel> The app armor security model is missing, but It's unclear why that might be. The app armor library is linked in and used (according to ldd), and nothing else on the system changes. I can install / de-install the two versions and repeatedly demonstrate this change. Any suggestions on what I should be looking for? Nothing comes up via a web search. Again: no special options on the configure, and the same technique is used to build both versions. I'm looking for any pointers before I start digging into the code. Thanks in advance!! Gary

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[libvirt-users] How to configure the container's NIC automatically with an assigned IP address
by WANG Cheng D 26 Sep '14

26 Sep '14

Dear all, I want to run a TCP/IP application automatically after I start the container using "virsh -c lxc:/// start mycontainer". Does anybody know how to configure the NIC automatically with an assigned IP address? I couldn't find useful information from domain XML format spec and it only talks how to set the mac address (http://libvirt.org/formatdomain.html) . Your response will be highly appreciated. Cheng

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[libvirt-users] libvirt 1.2.5 + xen 4.4
by cool dharma06 25 Sep '14

25 Sep '14

hi, i am trying to create hvm in xen via libvirt but i am facing some error. i installed the packages like bltap-utils, blktap-dkms in my dom0. virsh create tiny_core.xml p11-kit: invalid config filename, will be ignored in the future: /etc/pkcs11/modules/gnome-keyring-module error: Failed to create domain from tiny_core.xml error: internal error: libxenlight failed to create new domain 'tiny' config.xml file: <domain type='xen'> <name>tiny</name> <uuid>cc5b436b-a04b-4fc3-b145-e91df494fd26</uuid> <memory unit='KiB'>262144</memory> <currentMemory unit='KiB'>262144</currentMemory> <vcpu placement='static'>1</vcpu> <os> <type arch='x86_64' machine='xenfv'>hvm</type> <loader>/usr/local/lib/xen/boot/hvmloader</loader> <boot dev='hd'/> </os> <pae/> <acpi/> <apic/> <clock offset='variable' adjustment='0' basis='localtime'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/local/lib/xen/bin/qemu-dm</emulator> <disk type='file' device='disk'> <driver name='file'/> <source file='/opt/tinyos/tiny_core_plus.img'/> <target dev='hda'/> </disk> <interface type='bridge'> <mac address='00:11:3e:64:2f:cf'/> <source bridge='xenbr0'/> <ip address='dhcp'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='mouse' bus='usb'/> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes'/> </devices> </domain> Error.log libxl: debug: libxl_create.c:1342:do_domain_create: ao 0x7ff010003e00: create: how=(nil) callback=(nil) poller=0x7ff01000cb70 libxl: debug: libxl_device.c:251:libxl__device_disk_set_backend: Disk vdev=hda spec.backend=tap libxl: debug: libxl_device.c:210:disk_try_backend: Disk vdev=hda, backend tap unsuitable because blktap not available libxl: error: libxl_device.c:289:libxl__device_disk_set_backend: no suitable backend for disk hda libxl: error: libxl_dm.c:1467:kill_device_model: unable to find device model pid in /local/domain/1151/image/device-model-pid libxl: error: libxl.c:1421:libxl__destroy_domid: libxl__destroy_device_model failed for 1151 libxl: debug: libxl_event.c:1591:libxl__ao_complete: ao 0x7ff010003e00: complete, rc=-3 libxl: debug: libxl_create.c:1356:do_domain_create: ao 0x7ff010003e00: inprogress: poller=0x7ff01000cb70, flags=ic libxl: debug: libxl_event.c:1563:libxl__ao__destroy: ao 0x7ff010003e00: destroy xc: debug: hypercall buffer: total allocations:19 total releases:19 xc: debug: hypercall buffer: current allocations:0 maximum allocations:2 xc: debug: hypercall buffer: cache current size:2 xc: debug: hypercall buffer: cache hits:15 misses:2 toobig:2 any suggestion to crate hvm in xen. thanks & regards, cooldharma06 ..:)

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[libvirt-users] usb passtrough stuck to a given
by Mauricio Tavares 24 Sep '14

24 Sep '14

So I have an entry for a USB device ( ID 051d:0002, UPS) I want to use with a given vm client. In that vm client's config file I added something like this: <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x051d'/> <product id='0x0002'/> </source> </hostdev> And that worked fine for a while. Now I moved the vm host, and then put the cable to the UPS on an available USB port Bus 002 Device 006: ID 051d:0002 American Power Conversion Uninterruptible Power and tried to restart the client... and got the following message: error: internal error Did not find USB device 51d:2 bus:2 device:3 Er, why should it care about which bus and device this is? I thought my config would mean it would look for the device that matched the ID in the config no matter where it was. How did it learn and memorized what I guess is the old location?

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