Public bug reported:
I have a Centos 7 VM running in Ubuntu, on a Lenovo Thinksystem server.
After launching, it starts eating up the whole host memory quite
quickly. If I shut it down, still 32Gb get used by no process. I need to
reboot the host to get back the used memory.
Host:
# free -m
total used free shared buff/cache available
Mem: 80137 72925 5379 6 1831 6447
Swap: 4095 3 4092
# ps_mem
129.7 MiB + 130.2 MiB = 259.9 MiB mysqld
121.2 MiB + 237.3 MiB = 358.5 MiB systemd-journald (5)
200.9 MiB + 208.3 MiB = 409.1 MiB lxd (5)
30.4 GiB + 30.9 GiB = 61.4 GiB qemu-system-x86_64
---------------------------------
63.3 GiB
# virsh list
Id Name State
----------------------------------------------------
1 ispmanager-master running
Guest:
# free -m
total used free shared buff/cache available
Mem: 32011 6844 435 259 24730 24513
Swap: 10235 100 10135
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: qemu-kvm 1:2.11+dfsg-1ubuntu7.31
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.16
Architecture: amd64
Date: Mon Aug 24 08:03:21 2020
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04b3:4010 IBM Corp.
Bus 001 Device 002: ID 2a4b:0400
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Lenovo ThinkSystem SR590 -[7X99CTO1WW]-
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic
root=UUID=7b9c74b1-d80e-457e-957a-32be0fca891e ro
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/20/2020
dmi.bios.vendor: Lenovo
dmi.bios.version: -[TEE156L-2.61]-
dmi.board.asset.tag: none
dmi.board.name: -[7X99CTO1WW]-
dmi.board.vendor: Lenovo
dmi.board.version: none
dmi.chassis.asset.tag: none
dmi.chassis.type: 23
dmi.chassis.vendor: Lenovo
dmi.chassis.version: none
dmi.modalias:
dmi:bvnLenovo:bvr-[TEE156L-2.61]-:bd05/20/2020:svnLenovo:pnThinkSystemSR590-[7X99CTO1WW]-:pvr04:rvnLenovo:rn-[7X99CTO1WW]-:rvrnone:cvnLenovo:ct23:cvrnone:
dmi.product.family: ThinkSystem
dmi.product.name: ThinkSystem SR590 -[7X99CTO1WW]-
dmi.product.sku: 7X99CTO1WW
dmi.product.version: 04
dmi.sys.vendor: Lenovo
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic third-party-packages uec-images
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https://bugs.launchpad.net/bugs/1892648
Title:
VM eating twice the memory allocated
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