Re: QEMU/KVM startup error in F27
On Tue, 2017-11-21 at 15:31 -0500, Cole Robinson wrote:
On 11/14/2017 05:31 PM, Patrick O'Callaghan wrote:
> On trying to fire up a VM using virt-manager, I get "unable to map
> backing store for guest RAM: Permission denied".
>
> I use hugepages to lock down memory for the VM, which may be relevant
> for the error. This worked correctly on F26 just before the upgrade to
> F27. I have changed nothing in my VM configuration, nor in the config
> file for QEMU. However, temporarily turning off SElinux allows the
> startup to proceed, after which I can re-enable SElinux with no ill
> effects, i.e. the VM runs correctly.
>
> A complete relabel of my system (touch /.autolabel and reboot) has made
> no difference.
>
If you're still hitting this, please file a libvirt bug and we can
follow up from there, certainly sounds like something weird is going on
Undoubtedly. I reported it to BZ a couple of days ago (under a
different user):
https://bugzilla.redhat.com/show_bug.cgi?id=1514538
but no joy so far, and I see someone has marked it CLOSED/NOTABUG. Well
that's all right then, must be my imagination. I wish I could convince
Fedora that it isn't a bug.
poc