[Bug 1901398] Re: Unable to configure libxl's memory management parameters

Marietto 1901398 at bugs.launchpad.net
Sun Oct 25 19:17:18 UTC 2020


I did :

sudo usermod -aG libvirt root

and

sudo usermod -aG libvirt root

but the error persists.

anyway,look below. I've thought that libvirtd was active,but it isn't :

root at ziomario-z390aoruspro:/etc/xen# ./xen-start.sh

Starting /usr/local/sbin/oxenstored...Setting domain 0 name, domid and JSON config...
Done setting up Dom0
Starting xenconsoled...
Starting QEMU as disk backend for dom0
 *   [done] 
Starting xen-watchdog (via systemctl): xen-watchdog.service.

root at ziomario-z390aoruspro:/etc/xen# xl list

Name                                        ID   Mem VCPUs	State	Time(s)
Domain-0                                     0 32065    16     r-----     156.7

root at ziomario-z390aoruspro:/etc/xen# xl info

host                   : ziomario-z390aoruspro
release                : 5.8.0-25-generic
version                : #26-Ubuntu SMP Thu Oct 15 10:30:38 UTC 2020
machine                : x86_64
nr_cpus                : 16
max_cpu_id             : 15
nr_nodes               : 1
cores_per_socket       : 8
threads_per_core       : 2
cpu_mhz                : 3600.506
hw_caps                : bfebfbff:77faf3ff:2c100800:00000121:0000000f:009c6fbf:00000000:00000100
virt_caps              : pv hvm hvm_directio pv_directio hap shadow iommu_hap_pt_share
total_memory           : 32625
free_memory            : 133
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 13
xen_extra              : .1
xen_version            : 4.13.1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit2
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 
xen_commandline        : placeholder
cc_compiler            : gcc (Ubuntu 7.5.0-6ubuntu2) 7.5.0
cc_compile_by          : ziomario
cc_compile_domain      : 
cc_compile_date        : Fri Oct  2 16:52:58 CEST 2020
build_id               : 663c0ea9a0c8e154f65ceaa1261896c7c6ba90fc
xend_config_format     : 4

root at ziomario-z390aoruspro:/etc/xen# sudo systemctl status
libvirtd.service

● libvirtd.service - Virtualization daemon
     Loaded: loaded (/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
     Active: inactive (dead) since Sun 2020-10-25 14:00:23 CET; 19min ago
TriggeredBy: ● libvirtd-ro.socket
             ● libvirtd-admin.socket
             ● libvirtd.socket
       Docs: man:libvirtd(8)
             https://libvirt.org
    Process: 1393 ExecStart=/usr/sbin/libvirtd $libvirtd_opts (code=exited, status=0/SUCCESS)
   Main PID: 1393 (code=exited, status=0/SUCCESS)
      Tasks: 2 (limit: 32768)
     Memory: 18.8M
     CGroup: /system.slice/libvirtd.service
             ├─1522 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
             └─1523 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper

ott 25 14:00:23 ziomario-z390aoruspro libvirtd[1393]: Unable to configure libxl's memory management parameters
ott 25 14:00:23 ziomario-z390aoruspro libvirtd[1393]: Initialization of Xen state driver failed: no error
ott 25 14:00:23 ziomario-z390aoruspro libvirtd[1393]: Driver state initialization failed
ott 25 14:00:23 ziomario-z390aoruspro systemd[1]: libvirtd.service: Succeeded.
ott 25 14:00:23 ziomario-z390aoruspro systemd[1]: libvirtd.service: Unit process 1522 (dnsmasq) remains running after unit stopped.
ott 25 14:00:23 ziomario-z390aoruspro systemd[1]: libvirtd.service: Unit process 1523 (dnsmasq) remains running after unit stopped.
ott 25 14:01:00 ziomario-z390aoruspro dnsmasq[1522]: reading /etc/resolv.conf
ott 25 14:01:00 ziomario-z390aoruspro dnsmasq[1522]: using nameserver 127.0.0.53#53
ott 25 14:01:14 ziomario-z390aoruspro dnsmasq[1522]: reading /etc/resolv.conf
ott 25 14:01:14 ziomario-z390aoruspro dnsmasq[1522]: using nameserver 127.0.0.53#53

root at ziomario-z390aoruspro:/etc/xen# virsh --connect xen:/// list --all

error: failed to connect to the hypervisor
error: Cannot recv data: Connessione interrotta dal corrispondente

root at ziomario-z390aoruspro:/etc/xen# sudo systemctl is-active libvirtd
failed

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https://bugs.launchpad.net/bugs/1901398

Title:
  Unable to configure libxl's memory management parameters

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Hello.

  Yesterday I've upgraded ubuntu 20.04 to 20.10 and I have soon realized
  that libvirt stopped working with xen. Xen itself works ok for me,as u
  can see :

  root at ziomario-z390aoruspro:/etc/xen# xl list
  Name                                        ID   Mem VCPUs State Time(s)
  Domain-0                                     0 32065    16     r-----     435.8

  but it does not with libvirt :

  root at ziomario-z390aoruspro:/etc/xen# virsh pool-list --all
  error: failed to connect to the hypervisor
  error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection denied

  this is what happens when I query for the status :

  root at ziomario-z390aoruspro:/etc/xen# sudo systemctl status libvirtd.service
  ● libvirtd.service - Virtualization daemon
       Loaded: loaded (/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
       Active: inactive (dead) since Sun 2020-10-25 12:11:43 CET; 41s ago
  TriggeredBy: ● libvirtd.socket
               ● libvirtd-ro.socket
               ● libvirtd-admin.socket
         Docs: man:libvirtd(8)
               https://libvirt.org
      Process: 4283 ExecStart=/usr/sbin/libvirtd $libvirtd_opts (code=exited, status=0/SUCCESS)
     Main PID: 4283 (code=exited, status=0/SUCCESS)
        Tasks: 2 (limit: 32768)
       Memory: 28.2M
       CGroup: /system.slice/libvirtd.service
               ├─1577 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
               └─1578 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper

  ott 25 12:11:43 ziomario-z390aoruspro dnsmasq[1577]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
  ott 25 12:11:43 ziomario-z390aoruspro dnsmasq-dhcp[1577]: read /var/lib/libvirt/dnsmasq/default.hostsfile
  ott 25 12:11:43 ziomario-z390aoruspro libvirtd[4283]: libvirt version: 6.6.0, package: 1ubuntu3 (Christian Ehrhardt <christian.ehrhardt at canonical.com> Thu, 08 Oct 2020 07:3>
  ott 25 12:11:43 ziomario-z390aoruspro libvirtd[4283]: hostname: ziomario-z390aoruspro
  ott 25 12:11:43 ziomario-z390aoruspro libvirtd[4283]: Unable to configure libxl's memory management parameters
  ott 25 12:11:43 ziomario-z390aoruspro libvirtd[4283]: Initialization of Xen state driver failed: no error
  ott 25 12:11:43 ziomario-z390aoruspro libvirtd[4283]: Driver state initialization failed
  ott 25 12:11:43 ziomario-z390aoruspro systemd[1]: libvirtd.service: Succeeded.
  ott 25 12:11:43 ziomario-z390aoruspro systemd[1]: libvirtd.service: Unit process 1577 (dnsmasq) remains running after unit stopped.
  ott 25 12:11:43 ziomario-z390aoruspro systemd[1]: libvirtd.service: Unit process 1578 (dnsmasq) remains running after unit stopped.

  
  if xen works without libvirt AND it does not work with Libvirt,it is a bug of libvirt. I dind't see this behavior with ubuntu 20.04 ; so it is a bug of ubuntu 20.10. do u want to give a look ?

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