------- Comment From [email protected] 2018-07-25 04:36 EDT-------
(In reply to comment #16)
> MP ack would be ready to go.
> To make it clear that I wait on a pre-check before SRU processing here
> quoting my former comment:
>
> Before going on with the SRU processing I'd ask IBM to verify from the PPA
> [1] if that would suffice as backport for Bionic - therefore keeping
> incomplete on the Bionic Task until confirmed.
>
> [1]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3323

Summary
=======
The code in the PPA archive passes for Ubuntu 18.04 (see below).
The PPA archive does not seem to be appliable to Ubuntu 16.04 (see below).

Steps to reproduce (18.04)
==========================
mz@s390xhost$ docker run -it --privileged --rm ubuntu:18.04 bash
root@f1f7c829b38e:/#
root@f1f7c829b38e:/#
root@f1f7c829b38e:/# apt update
root@f1f7c829b38e:/# apt-get install -y software-properties-common
root@f1f7c829b38e:/# add-apt-repository -y ppa:ci-train-ppa-service/3323
root@f1f7c829b38e:/#
root@f1f7c829b38e:/# DEBIAN_FRONTEND=noninteractive apt install -y \
libguestfs-tools \
python-libguestfs \
linux-image-generic \
qemu
root@f1f7c829b38e:/#
root@f1f7c829b38e:/# apt-cache policy libguestfs-tools
libguestfs-tools:
Installed: 1:1.36.13-1ubuntu3.1~ppa3
Candidate: 1:1.36.13-1ubuntu3.1~ppa3
Version table:
*** 1:1.36.13-1ubuntu3.1~ppa3 500
500 http://ppa.launchpad.net/ci-train-ppa-service/3323/ubuntu bionic/main s390x 
Packages
100 /var/lib/dpkg/status
1:1.36.13-1ubuntu3 500
500 http://ports.ubuntu.com/ubuntu-ports bionic/universe s390x Packages
root@f1f7c829b38e:/#
root@f1f7c829b38e:/#
root@f1f7c829b38e:/#
root@f1f7c829b38e:/# export LIBGUESTFS_DEBUG=1
root@f1f7c829b38e:/# export LIBGUESTFS_TRACE=1
root@f1f7c829b38e:/#
root@f1f7c829b38e:/#
root@f1f7c829b38e:/#
root@f1f7c829b38e:/# libguestfs-test-tool
[...]
/usr/bin/qemu-system-s390x \
-global virtio-blk-ccw.scsi=off \
-enable-fips \
-nodefaults \
-display none \
-machine accel=kvm:tcg \
-cpu host \
-m 500 \
-no-reboot \
-rtc driftfix=slew \
-kernel /var/tmp/.guestfs-0/appliance.d/kernel \
-initrd /var/tmp/.guestfs-0/appliance.d/initrd \
-object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-ccw,rng=rng0 \
-device virtio-scsi-ccw,id=scsi \
-drive 
file=/tmp/libguestfsC6T7tY/scratch1.img,cache=unsafe,format=raw,id=hd0,if=none \
-device scsi-hd,drive=hd0 \
-drive 
file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw
 \
-device scsi-hd,drive=appliance \
-device virtio-serial-ccw \
[...]
===== TEST FINISHED OK =====

NOTE:
Please take note of the `ccw` devices here, instead of the `pci` devices
of the original bug description.

Steps to reproduce (16.04)
==========================
mz@s390xhost$ docker run -it --privileged --rm ubuntu:16.04 bash
root@c0cfb3274e1a:/#
root@c0cfb3274e1a:/#
root@c0cfb3274e1a:/# apt update
root@c0cfb3274e1a:/# apt-get install -y software-properties-common
root@c0cfb3274e1a:/# add-apt-repository -y ppa:ci-train-ppa-service/3323
root@c0cfb3274e1a:/#
root@c0cfb3274e1a:/# DEBIAN_FRONTEND=noninteractive apt install -y \
libguestfs-tools \
python-libguestfs \
linux-image-generic \
qemu
root@c0cfb3274e1a:/#
root@c0cfb3274e1a:/# apt-cache policy libguestfs-tools
libguestfs-tools:
Installed: 1:1.32.2-4ubuntu2
Candidate: 1:1.32.2-4ubuntu2
Version table:
*** 1:1.32.2-4ubuntu2 500
500 http://ports.ubuntu.com/ubuntu-ports xenial/universe s390x Packages
100 /var/lib/dpkg/status

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https://bugs.launchpad.net/bugs/1766534

Title:
  libguestfs cannot start the qemu process on s390x

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