[libvirt] libvirt and dmesg

Michel Pierre-Jacques pj at kogitae.fr
Wed Mar 15 08:58:54 UTC 2017


thank's Cedric i try this way, like i do with lxcfs and libvirt for
having good counter on the lxc domain side ( RAM / disk / CPu ) 

i post her because i'm not sure it's a way of using or a limit of
libvirt, i try the other mailing list too in the future 

On Wed, 15 Mar 2017 09:53:15 +0100
Cedric Bosdonnat <cbosdonnat at suse.com> wrote:

> Hello Pierre-Jacques,
> 
> First note that you posted your message on the developer's mailing
> list. For such user questions, rather email:
> https://www.redhat.com/mailman/listinfo/libvirt-users
> 
> According to
> https://linuxcontainers.org/lxc/manpages//man5/lxc.container.conf.5.html
> lxc.kmsg is only used to symlink /dev/kmsg to /dev/console. Thus
> setting this to 0 only results in the lack of that symlink. libvirt
> doesn't setup this link at all, may be it is coming from the lxc
> domain root file system.
> 
> On Wed, 2017-03-15 at 08:49 +0100, Michel Pierre-Jacques wrote:
> > Hi all, il try to find the way to obtain the same use as in the
> > lxc config file lxc.kmsg=0
> > 
> > how to do that, with the xml of a lxc domain, i make lot of try
> > without success . 
> > 
> > is there another way to deny access to the dmesg for a libvirt lxc
> > domain ?   
> 
> >From what I see, dmesg doesn't necessarily requires /dev/kmsg (at
> >least  
> on opensuse). So blocking it may be more tricky. May be you should
> tell us more how you setup your container.
> 
> --
> Cedric
> 
> --
> libvir-list mailing list
> libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list


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