Comment 26 for bug 1563887

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Michael Roth (mdroth) wrote : Re: [Qemu-devel] [Bug 1563887] Re: qemu-system-ppc64 freezes on starting image on ppc64le

Quoting Mike Rushton (2016-04-05 13:10:17)
> ubuntu@alpine01:~$ sudo ppc64_cpu --smt=1
> ubuntu@alpine01:~$ ppc64_cpu --info
> Core 0: 0* 1 2 3 4 5 6 7
> Core 1: 8* 9 10 11 12 13 14 15
> Core 2: 16* 17 18 19 20 21 22 23
> Core 3: 24* 25 26 27 28 29 30 31
> Core 4: 32* 33 34 35 36 37 38 39
> Core 5: 40* 41 42 43 44 45 46 47
> Core 6: 48* 49 50 51 52 53 54 55
> Core 7: 56* 57 58 59 60 61 62 63
>
> ubuntu@alpine01:~$ sudo ppc64_cpu --smt
> SMT is off
>
>
> Still freezing at the same point.
>
> Bug description:
> qemu-system-ppc64 running on Ubuntu 16.04 beta-2 fails to start an
> image as part of the certification process. This on an IBM ppc64le in
> PowerVM mode running Ubuntu 16.04 beta-2 deployed by MAAS 1.9.1. There
> is no error output.
>
> ubuntu@alpine01:~/kvm$ qemu-system-ppc64 -m 256 -display none -nographic -net nic -net user,net=10.0.0.0/8,host=10.0.0.1,hostfwd=tcp::2222-:22 -machine pseries -drive file=xenial-server-cloudimg-ppc64el-disk1.img,if=virtio -drive file=seed.iso,if=virtio
> WARNING: Image format was not specified for 'seed.iso' and probing guessed raw.
>          Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
>          Specify the 'raw' format explicitly to remove the restrictions.

Unless things are different with Ubuntu, I don't think KVM is enabled by default. Try your command with -enable-kvm to be sure.