[Pkg-libvirt-maintainers] Bug#703208: libvirt0: segfault after upgrade from version 0.8.3-5+squeeze2 to 0.8.3-5+squeeze4

[Salvatore Bonaccorso]

Control: severity -1 grave

Hi

On Sun, Mar 17, 2013 at 12:16:19AM +0100, TomaszSz wrote:
> Package: libvirt0
> Version: 0.8.3-5+squeeze4
> Severity: normal
[...]
> My virtual machines doesn't start also.
> In my /var/log/libvirt/qemu/mymachine.log i get this information:
> "LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/ QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 16384 -smp 
> 4,sockets=4,cores=1,threads=1 -name win2008-STD-orion -uuid 66a2dc8c-dd85-38da-ab66-405784525dce -nodefaults -chardev 
> socket,id=monitor,path=/var/lib/libvirt/qemu/win2008-STD-orion.monitor,server,nowait -mon chardev=monitor,mode=readline -rtc base=localtime -boot c -drive 
> if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive 
> file=/home/images/win2k8_std_orion.qcow2,if=none,id=drive-ide0-0-0,boot=on,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 
> -device e1000,vlan=0,id=net0,mac=52:54:00:f5:78:57,bus=pci.0,addr=0x3 -net tap,fd=63,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device 
> isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:1 -k pl -vga std -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char 
> device redirected to /dev/pts/3 open /dev/kvm: Permission denied Could not initialize KVM, will disable KVM support "

I can confirm this, upgrading from 0.8.3-5+squeeze2 to
0.8.3-5+squeeze4 is causing this regression:

open /dev/kvm: Permission denied
Could not initialize KVM, will disable KVM support

This seems related to the changes done for #701649, but I had not time
to check further.

Cc'ing also the security team.

Regards,
Salvatore