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Date: Mon, 16 Nov 2015 14:25:58 +0200
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Subject: [alpine-devel] libvirt vm does not register itself in /sys/fs/cgroup/<resource>/machine/....
From: Valery Kartel <valery.kartel@gmail.com>
To: alpine-devel@lists.alpinelinux.org
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Hi,

I made a fresh installed 3.2.3 x86_64 grsec alpinelinux host for libvirt
qemu vm's. When I start a vm, it must register itself in control groups but
it doesn't. When vm is shutted down, libvirt reports an error to its log:
virCgroupFree:4275 : Control groups not supported on this platform: No such
device or address.
I upgrade this host to the edge but the problem remained.

I think now it's not a problem when 1-2 qemu vm-s are running, but when
20-30 lxc- or dockerized-vm are comes it's would be a really problem
because cgroups are used to control of shared resources.

BTW: on my laptop (ubuntu) libvirt register in cgroups any started vm. On
my old gentoo-server with about 600 days uptime libvirt does it too.

Don't know why on alpinelinux it does not...

Mor about libvirt cgroups: https://libvirt.org/cgroups.html

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<div dir=3D"ltr"><div><div>Hi,<br><br></div>I made a fresh installed 3.2.3 =
x86_64 grsec alpinelinux host for libvirt qemu vm&#39;s. When I start a vm,=
 it must register itself in control groups but it doesn&#39;t. When vm is s=
hutted down, libvirt reports an error to its log: virCgroupFree:4275 : Cont=
rol groups not supported on this platform: No such device or address.<br></=
div><div><span id=3D"result_box" class=3D"" lang=3D"en"><span class=3D"">I<=
/span> <span class=3D"">upgrade</span> <span class=3D"">this host to the ed=
ge but the problem remained</span><span>.</span></span></div><div><br>I thi=
nk now it&#39;s not a problem when 1-2 qemu vm-s are running, but when 20-3=
0 lxc- or dockerized-vm are comes it&#39;s would be a really problem becaus=
e cgroups are used to control of shared resources.<br><br></div><div>BTW: o=
n my laptop (ubuntu) libvirt register in cgroups any started vm. On my old =
gentoo-server with about 600 days uptime libvirt does it too. <br><br></div=
><div>Don&#39;t know why on alpinelinux it does not...<br></div><div><br></=
div><div>Mor about libvirt cgroups: <a href=3D"https://libvirt.org/cgroups.=
html">https://libvirt.org/cgroups.html</a><br></div><div><br></div></div>

--001a11469838efb31e0524a782cd--


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