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Bug#906107: linux-image-3.16.0-6-amd64: Latests kernel 3.16 on KVM host breaks Linux guest with lastests kernels



On Tue, Aug 14, 2018 at 10:39:12AM +0100, Jose M Calhariz wrote:
> Package: src:linux
> Version: 3.16.57-2
> Severity: important
> 
> We use OpenNebula on Debian 8 to run KVM guests.  Our latest upgrade of the host and guests broke badly.
> The host can not run guests with the latest kernels from Debian 8 and 9.  If we downgrade the kernel on 
> host or guest the problem is no longer present.
> 
> To localize the root problem, I managed to launch a KVM guest on the command line using the lastest 
> Debian live CD and the problem was the same.  This is not a problem of OpenNebula. 
> 
> I need help to collect more information about what is going wrong on the guest and the host.
> 
> Kind regards
> Jose M Calhariz
> 

I have made videos of a guest live cd from Debian trying to boot and
failing.

qemu-system-x86_64 -enable-kvm -machine pc-i440fx-2.1,accel=kvm,usb=off -m 8096 -device cirrus-vga,id=video0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -cpu host -msg timestamp=on -smp 4,sockets=4,cores=1,threads=1 -display vnc=:22 -cdrom ~cal/debian-9.5.0-amd64-xfce-CD-1.iso

The most informative have 60MB.  There is a recomended place to upload
videos?  If not, I can upload on my homepage at University.


Kind regards
Jose M Calhariz



-- 
--
Quem ama puríssima, dourada lhe parece.

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