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[libvirt-users] LXC Memory Limits wont work



Hello,

iam currently trying to run LXC Containers with libvirt
but the memory limit doesn't want to work

in the container i see the full 32GB from the Host OS
iam pretty sure that iam missing a configline in the xml

lxc-template ~ # free -m
total used free shared buff/cache available Mem: 32108 626 31396 249 85 31396
Swap:             0           0           0
lxc-template ~ #


the host is running debian 9 with default repos

hv1 ~ # dpkg -l | grep virt
ii libgovirt-common 0.3.4-2 all GObject-based library to access oVirt REST API (common files) ii libgovirt2:amd64 0.3.4-2 amd64 GObject-based library to access oVirt REST API ii libvirt-clients 3.0.0-4+deb9u3 amd64 Programs for the libvirt library ii libvirt-daemon 3.0.0-4+deb9u3 amd64 Virtualization daemon ii libvirt-daemon-system 3.0.0-4+deb9u3 amd64 Libvirt daemon configuration files ii libvirt-glib-1.0-0:amd64 1.0.0-1 amd64 libvirt GLib and GObject mapping library ii libvirt0 3.0.0-4+deb9u3 amd64 library for interfacing with different virtualization systems ii python-libvirt 3.0.0-2 amd64 libvirt Python bindings ii qemu-kvm 1:2.8+dfsg-6+deb9u4 amd64 QEMU Full virtualization on x86 hardware ii virt-viewer 5.0-1 amd64 Displaying the graphical console of a virtual machine ii virtinst 1:1.4.0-5 all Programs to create and clone virtual machines


--

best regards
Markus Raps
<domain type='lxc' id='31672'>
  <name>deb4</name>
  <uuid>b1981e50-3bbc-40bf-b145-4a50e927eb7d</uuid>
  <memory unit='KiB'>4000000</memory>
  <currentMemory unit='KiB'>4000000</currentMemory>
  <vcpu placement='static' cpuset='0-1'>2</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64'>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/lib/libvirt/libvirt_lxc</emulator>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/mnt/vms/hdd1/lxc/deb3'/>
      <target dir='/'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/lxcfs/proc/cpuinfo'/>
      <target dir='/proc/cpuinfo'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/lxcfs/proc/diskstats'/>
      <target dir='/proc/diskstats'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/lxcfs/proc/meminfo'/>
      <target dir='/proc/meminfo'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/lxcfs/proc/stat'/>
      <target dir='/proc/stat'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/lxcfs/proc/swaps'/>
      <target dir='/proc/swaps'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/lxcfs/proc/uptime'/>
      <target dir='/proc/uptime'/>
    </filesystem>
    <interface type='bridge'>
      <mac address='52:54:00:34:28:f3'/>
      <source bridge='br0'/>
      <target dev='vnet0'/>
      <guest dev='eth0'/>
    </interface>
    <console type='pty' tty='/dev/pts/2'>
      <source path='/dev/pts/2'/>
      <target type='lxc' port='0'/>
      <alias name='console0'/>
    </console>
  </devices>
  <seclabel type='none' model='none'/>
</domain>
 

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