April 2018 - Users - libvirt List Archives

[libvirt-users] Server 2016 locked in paused state
by Paul O'Rorke 01 May '18

01 May '18

Hi all, I have a number of production Windows servers on KVM/DRBD and two of them are Server 2016. Both these guests have started exhibiting the same behaviour where they enter a paused state and will not resume. The behaviour is the same whether I use virsh or virt-manager. My only recourse is to force the guest off and start it again. This brings the host up temporarily where upon it pauses again. It could be minutes or hours but it always returns to being stuck in this paused state. I'm not seeing anything much in /var/log/kern.log or syslog - perhaps I'm missing the clue. Has anyone else seen this and or can you advise me where I should be looking to find the cause of this? Sincerely -- *Paul O'Rorke* *Tracker Software Products (Canada) Limited * www.tracker-software.com <http://www.tracker-software.com/> Tel: +1 (250) 324 1621 Fax: +1 (250) 324 1623 <http://www.tracker-software.com/> Support: http://www.tracker-software.com/support Download latest Releases http://www.tracker-software.com/downloads/

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[libvirt-users] LibVirt "make install" after successful compilation
by Azizul Hakim 30 Apr '18

30 Apr '18

I am having some issue with LibVirt installation from source code. I downloaded the latest code from git, was able to configure and compile it. But when I try to install it using *sudo make installi, *I get the following errors. Making install in po make[1]: Entering directory '~/libvirt/po' make[2]: Entering directory '~/libvirt/po' make[2]: Nothing to be done for 'install-exec-am'. make install-data-hook make[3]: Entering directory '~/libvirt/po' make[3]: *** No rule to make target 'af.gmo', needed by 'install-data-hook'. Stop. make[3]: Leaving directory '~/libvirt/po' Makefile:2027: recipe for target 'install-data-am' failed make[2]: *** [install-data-am] Error 2 make[2]: Leaving directory '~/libvirt/po' Makefile:1981: recipe for target 'install-am' failed make[1]: *** [install-am] Error 2 make[1]: Leaving directory '~/libvirt/po' Makefile:2105: recipe for target 'install-recursive' failed make: *** [install-recursive] Error 1 As I mentioned, there is no error during compiling the source code. It would be helpful if someone could point me in a direction so I can figure out the problem. Thanks Azizul Hakim

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[libvirt-users] [libvirt] ignore_value
by gaosheng cui 27 Apr '18

27 Apr '18

Hi,using ignore_value in libvirt source code to do function return value processing,but I can’t understand about it,can you give me some tips?thanks very much!

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[libvirt-users] qemu crash, qemu_thread_create: Resource temporarily unavailable
by llilulu 25 Apr '18

25 Apr '18

Hi My qemu is 2.9.0, libvirt is 3.4.0. I start many guest in short time(128G pyhsical memory ,1G per guest, 90 guest), and then run memtest on guest system.memtest just occupy guest memory，so when run memtest, host will allocate memory for guest. I run memtest on all my guest, and some guest will encounter crash. qemu log has qemu_thread_create: Resource temporarily unavailable record，I ask same question before, replier suggest I change qemu.conf max_process arg, but I cat /proc/$pid/limits, I find maxprocess limit is very big, I don't think is the args restrict. I think is when I run memtest on all guest, the host pressure very highly in short time, because when I run memtest on all guest, i encounter some other program core, I use gdb debug the core, I find is dump in allocate memory. so I want known qemu crash is that reason, and how host system acceptable pressure limit. when I encounter qemu crash, what can I do avoid the promble. Thanks

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[libvirt-users] Possible to resize a Windows guest's disk while online?
by Andre Goree 20 Apr '18

20 Apr '18

I'm looking for a way to online resize a Windows disk -- i.e., be able to resize the disk without shutting down, rebooting, or detaching the disk. Is this at all possible? Or am I just barking up the wrong tree? I'm not finding a way to do this and even Amazon has a weird workaround, in which the user must write data to the newly resized-drive in order to recognize the new size without taking the disk or the VM offline. [Obligatory] YAY Microsoft. -- Andre Goree -=-=-=-=-=- Email - andre at drenet.net Website - http://blog.drenet.net PGP key - http://www.drenet.net/pubkey.html -=-=-=-=-=-

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[libvirt-users] Share ZFS zpool between host and VM's
by Steffen Sledz 19 Apr '18

19 Apr '18

Is it possible to share a ZFS zpool between the host and one or more QEMU/KVM clients?

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[libvirt-users] qemu: qemu_thread_create: Resource temporarily unavailable
by llilulu 18 Apr '18

18 Apr '18

Hi: My libvirt is 3.4.0 and qemu is 2.9.0, My host has a big memory(128G), I run many guest on my host(80 guests), when I batch stop and start guests, some guest will crash, the qemu log is "qemu: qemu_thread_create: Resource temporarily unavailable". I search qemu code, I find qemu_thread_create just like pthread_create function. I search on internet, someone say that is a bug of qemu.Because my host run many guest ,so I cann't ensure whether qemu bug or my host load heavy cause my guest crash. Can someone tell me what reason cause the promble? and what can I do avoid the promble? Thanks

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[libvirt-users] can't find how to solve "QEMU guest agent is not connected"
by Matt 18 Apr '18

18 Apr '18

I am trying to make Qemu agent work with libvirt thanks to https://github.com/NixOS/nixops/pull/922 with libvirt 4.1.0. I've been trying to make it work for quite some time but I still haven't the slightest idea of what is wrong, I keep seeing "Guest agent is not responding: QEMU guest agent is not connected" as the program I use (nixops) calls the libvirt python API. I apologize in advance for dropping so many details but in case someone is interested in answering this post, I thought I would provide details upfront. The failure surprises me as typically a socket is created when I start the VM with a priori the correct rights myuser:libvirtd (libvirtd is the default libvirt group on nixos, different from upstream IIRC): /var/lib/libvirt/qemu/channel/target/domain-10-nixops-3cb2c9c2-41ea/org.qemu.guest_agent.0 My domain contains ``` <channel type='unix'> <target type='virtio' name='org.qemu.guest_agent.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> ``` as requested per the doc (I tried with source=bind to no avail, btw the doc for `source` is not that great) my libvirtd.conf has the following setting ``` log_level = 1 # no filter for now log_filters="1:qemu.qemu_agent 1:qemu.qemu_monitor" # log_filters="3:remote 4:event 3:json 3:rpc" log_outputs="1:file:/var/log/libvirt/libvirtd.log" ``` `journalctl -b -u libvirtd.service` returns ``` avril 17 12:31:05 jedha libvirtd[22804]: 2018-04-17 03:31:05.482+0000: 22806: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected avril 17 12:31:06 jedha libvirtd[22804]: 2018-04-17 03:31:06.487+0000: 22807: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected avril 17 12:31:07 jedha libvirtd[22804]: 2018-04-17 03:31:07.493+0000: 22805: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected avril 17 12:31:08 jedha libvirtd[22804]: 2018-04-17 03:31:08.499+0000: 22809: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected avril 17 12:31:09 jedha libvirtd[22804]: 2018-04-17 03:31:09.506+0000: 22808: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected avril 17 12:31:10 jedha libvirtd[22804]: 2018-04-17 03:31:10.513+0000: 22806: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected avril 17 12:31:11 jedha libvirtd[22804]: 2018-04-17 03:31:11.512+0000: 22804: error : virNetSocketReadWire:1809 : End of file while reading data: Input/output error ``` Here is an excerpt just before the error "GUest agent is not connected" (full log of 82MB available at https://drive.google.com/file/d/1sYpyJ2WQMlyFqNKkPkvSAJ13Tm2JjpVk/view?usp=…) ``` 2018-04-17 03:56:41.982+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=5 w=6, f=12 e=1 d=0 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=6 w=7, f=13 e=1 d=0 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=7 w=8, f=15 e=1 d=0 2018-04-17 03:56:41.983+0000: 807: debug : virAccessManagerCheckDomain:234 : manager=0x55fa67d0d450(name=stack) driver=QEMU domain=0x7f2c5800c040 perm=1 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=8 w=9, f=17 e=25 d=0 2018-04-17 03:56:41.983+0000: 807: debug : virAccessManagerCheckDomain:234 : manager=0x55fa67d0d6f0(name=none) driver=QEMU domain=0x7f2c5800c040 perm=1 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=9 w=10, f=18 e=1 d=0 2018-04-17 03:56:41.983+0000: 807: info : virObjectUnref:350 : OBJECT_UNREF: obj=0x55fa67d0d450 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=10 w=11, f=19 e=1 d=0 2018-04-17 03:56:41.983+0000: 807: info : virObjectRef:388 : OBJECT_REF: obj=0x7f2c14026460 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollMakePollFDs:401 : Prepare n=11 w=13, f=23 e=25 d=0 2018-04-17 03:56:41.983+0000: 807: debug : qemuDomainObjBeginJobInternal:5393 : Starting job: query (vm=0x7f2c58004770 name=nixops-4f58a5c0-41f3-11e8-9858-309c233b770e-server, current job=none async=none) 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollCalculateTimeout:338 : Calculate expiry of 1 timers 2018-04-17 03:56:41.983+0000: 807: debug : qemuDomainObjBeginJobInternal:5434 : Started job: query (async=none vm=0x7f2c58004770 name=nixops-4f58a5c0-41f3-11e8-9858-309c233b770e-server) 2018-04-17 03:56:41.983+0000: 806: debug : virEventPollCalculateTimeout:371 : No timeout is pending 2018-04-17 03:56:41.983+0000: 807: info : virObjectUnref:350 : OBJECT_UNREF: obj=0x7f2c14026460 2018-04-17 03:56:41.983+0000: 806: info : virEventPollRunOnce:640 : EVENT_POLL_RUN: nhandles=12 timeout=-1 2018-04-17 03:56:41.983+0000: 807: error : qemuDomainAgentAvailable:7755 : Guest agent is not responding: QEMU guest agent is not connected ``` This is the VM log from a machine similar to the one in the previous messages (same config) ``` 2018-04-16 08:28:47.875+0000: starting up libvirt version: 4.1.0, qemu version: 2.11.1, hostname: jedha LC_ALL=C PATH=/run/libvirt/nix-emulators:/nix/store/f8hxcp939qwpiwzm6999gljdkd2kzg6v-iptables-1.6.2/bin:/nix/store/fs4p0aw14snppfcjrzmiic52sjc3z627-iproute2-4.15.0/bin:/nix/store/bbrlfy430b48fywf7rgk4x1qxrpm695j-pm-utils-1.4.1/bin:/nix/store/waj4yidjf59mknpkcd99pdp0wf1x5gs7-numad-0.5/bin:/nix/store/hz5x8d3nlqvkv63mkxajblp9pkawlwvq-numactl-2.0.11/bin:/nix/store/pj5iq5sdhc3f8v6ysyxssm039jrkxmcl-bridge-utils-1.5/bin:/nix/store/bkrl7mxmzn0whm1n29dhyhdhlgkv0m8c-dmidecode-3.1/bin:/nix/store/h6x6i584ihp1qvk19vvyk5gqjznxk6bp-dnsmasq-2.78/bin:/nix/store/xvnsxcsq2ca3cs7z4952jdjid48ql32c-ebtables-2.0.10-4/bin:/nix/store/j7x4cjlfrdhagmciqk5zc58g1icg91rb-qemu-2.11.1/bin:/nix/store/qrxs7sabhqcr3j9ai0j0cp58zfnny0jz-coreutils-8.29/bin:/nix/store/3ixa5cn578zz4pr81a0rdkbi4dal748a-findutils-4.6.0/bin:/nix/store/xd4m1v7q7kn902p8hvnfn79c2wjijlif-gnugrep-3.1/bin:/nix/store/r0wkp0vkw6wjfl0skmdpykabgj1bkyn2-gnused-4.4/bin:/nix/store/aw6jabbci1k81j6hvyskkhb3va45wws2-systemd-237/bin:/nix/store/j7x4cjlfrdhagmciqk5zc58g1icg91rb-qemu-2.11.1/sbin:/nix/store/qrxs7sabhqcr3j9ai0j0cp58zfnny0jz-coreutils-8.29/sbin:/nix/store/3ixa5cn578zz4pr81a0rdkbi4dal748a-findutils-4.6.0/sbin:/nix/store/xd4m1v7q7kn902p8hvnfn79c2wjijlif-gnugrep-3.1/sbin:/nix/store/r0wkp0vkw6wjfl0skmdpykabgj1bkyn2-gnused-4.4/sbin:/nix/store/aw6jabbci1k81j6hvyskkhb3va45wws2-systemd-237/sbin QEMU_AUDIO_DRV=none /run/libvirt/nix-emulators/qemu-kvm -name guest=nixops-0084610a-4150-11e8-aef5-309c233b770e-server,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-7-nixops-0084610a-4150/master-key.aes -machine pc-i440fx-2.11,accel=kvm,usb=off,dump-guest-core=off -m 512 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid ad67fc0b-d93d-455d-a6e6-5549451e08ac -display none -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-7-nixops-0084610a-4150/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -no-acpi -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x3 -drive file=/var/lib/libvirt/images/nixops-0084610a-4150-11e8-aef5-309c233b770e-server.qcow2,format=qcow2,if=none,id=drive-ide0-0-0 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -netdev tap,fd=21,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:84:7f:ee,bus=pci.0,addr=0x2 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-7-nixops-0084610a-4150/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 -device usb-kbd,id=input0,bus=usb.0,port=1 -device usb-mouse,id=input1,bus=usb.0,port=2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 -msg timestamp=on 2018-04-16T08:28:47.931670Z qemu-system-x86_64: -chardev pty,id=charserial0: char device redirected to /dev/pts/4 (label charserial0) 2018-04-16T08:32:04.730417Z qemu-system-x86_64: terminating on signal 15 from pid 1211 (/nix/store/ggqq9v3h5w66gnzbg3wg74s0ad7m0rjk-libvirt-4.1.0/sbin/libvirtd) 2018-04-16 08:32:04.931+0000: shutting down, reason=destroyed ``` Let me know what I can do to diagnose the error, or if any additionnal details would help. I will happily provide them. Best regards Matt

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[libvirt-users] How allocate ip for guest in xml file
by llilulu 17 Apr '18

17 Apr '18

Hi: I encounter a promble when I use libvirt manager my virtual machine. I use dhcp allocate IP for my guest, but use dhcp manager IP source, I will ensure guest run NetworkManager auto start NIC in dhcp type get IP. But some release system no install NetworkManager, or some installed system no install NetworkManager, so when I manager those guest, I cann't allocate IP for guest via dhcp server. I want know has other way allocate ip for guest in guest xml file when create the guest, I search "libvirt domain xml format", I find use blow xml configuration in <interface/> <ip address='192.168.122.5' prefix='24'/> But I add this in my guest xml file, virsh create guest will report an error: "error: unsupported configuration: Invalid attempt to set network interface guest-side IP route and/or address info, not supported by QEMU" I want to know if I use dhcp allocate IP for guest, has some way auto start guest dhclinet when guest start(because NIC can hotplug, I cann't write NIC configure file for it). or I want configure IP for guest in guest xml file,How cant I do? my libvirt version is 3.4.0, qemu is 2.9.0. I compile libvirt and qemu myself, when compile its run ./configure script without specific args. If I want qemu or libvirt support configure IP in guest xml file, how I compile libvirt and qemu? Thanks.

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[libvirt-users] Online Disk Resize with Windows Server 2016
by Andre Goree 12 Apr '18

12 Apr '18

I'm having an issue when resizing a disk (a Ceph RBD disk, though the type of disk shouldn't matter, I'd think) attached to a Windows Server 2016 guest. After I resize the disk, the newly-created disk space is _not_ recognized by the server. Even after running Action > Rescan from the Disk Management app, the new disk space does not show. However, when I perform the same resize on a Windows Server 2012 or even a Sever 2008 system, the Action > Rescan works fine and the newly-created disk space is recognized without needed to detach the drive or reboot the VM. Does anyone have an idea of what may have changed in Windows 2k16 that might be causing this? Possibly some undocumented registry change or something? -- Andre Goree -=-=-=-=-=- Email - andre at drenet.net Website - http://blog.drenet.net PGP key - http://www.drenet.net/pubkey.html -=-=-=-=-=-

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