[Pkg-libvirt-maintainers] Bug#832592: Bug#832592: libvirt-daemon: KVM is not recognized as supported virtualization

[Jozsef Kadlecsik]

On Wed, 27 Jul 2016, Guido Günther wrote:

> control: retitle -1 fails to activate qemu hypervisor with error 
> "libvirt_driver_qemu.so: undefined symbol: 
> virStorageFileCreatelibvirt-daemon"
> 
> On Wed, Jul 27, 2016 at 12:22:12PM +0200, Jozsef Kadlecsik wrote:
> > Package: libvirt-daemon
> > Version: 1.2.9-9+deb8u3
> > Severity: important
> > 
> > Dear Maintainer,
> > 
> > After upgrading from wheezy to jessie, libvirt-daemon stopped to recognize
> > KVM as virtualization. All already defined guests are forgotten:
> > 
> > root at atlas0:~# virsh list --all
> >  Id    Name                           State
> > ----------------------------------------------------
> > 
> > root at atlas0:~# virsh -c qemu:///sytem list --all
> > error: failed to connect to the hypervisor
> > error: no connection driver available for qemu:/sytem
> > 
> > In /var/log/libvirt/libvirtd.log one can see the error message:
> > 
> > 2016-07-26 09:33:39.997+0000: 27933: error : virDriverLoadModule:73 : failed
> > to load module /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
> > /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so: undefined symbol:
> > virStorageFileCreate
> > 
> > One can find reports on "libvirt_driver_qemu.so: undefined symbol:
> > virStorageFileCreate" from other distributions and those refer to an
> > upgrade for the device-mapper as a fix.
> 
> Can you do a
> 
>     ldd /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
> 
> Are you sure the daemon restarted properly after the update and there's
> not hand built libvirt around in your library path?

It seems the problem was that PAX refused to enable PROT_WRITE for 
librados.so.2 and somehow that caused the failed load for the next 
module, ie. libvirt_driver_qemu.so.

Sorry for the false report,
Jozsef
-
E-mail  : kadlec at blackhole.kfki.hu, kadlecsik.jozsef at wigner.mta.hu
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Address : Wigner Research Centre for Physics, Hungarian Academy of Sciences
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