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[Launchpad Bug Tracker <1656112@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package qemu - 1:2.5+dfsg-5ubuntu10.13

---------------
qemu (1:2.5+dfsg-5ubuntu10.13) xenial; urgency=medium

  * debian/patches/ubuntu/vvfat-fix-volume-name-assertion.patch:
    Fix the volume name assertion in vvfat rw mode (LP: #1684239)

qemu (1:2.5+dfsg-5ubuntu10.12) xenial; urgency=medium

  * debian/patches/ubuntu/bug-1656112-POWER8NVL-[12]-*.patch:
    Add PowerISA 2.07 compatibility mode to fix execution on POWER8NVL
    processors such as in S822LC (8335-GTB) machines (LP: #1656112)

 -- Christian Ehrhardt <christian.ehrhardt@xxxxxxxxxxxxx>  Tue, 25 Apr
2017 13:58:10 +0200

** Changed in: qemu (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1656112

Title:
  Power S822LC (8335-GTB) fails KVM guest cert test with kvm_init_vcpu
  failed: Invalid argument

Status in linux package in Ubuntu:
  Confirmed
Status in qemu package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Confirmed
Status in qemu source package in Xenial:
  Fix Released

Bug description:
  [Impact]

   * Some newer Power8 derivates fail to work correctly e.g. Power S822LC
    (8335-GTB)

   * This is a toleration change (no exploitation) for those HW releases
     following the SRU policy of "For Long Term Support releases we
     regularly want to enable new hardware. Such changes are appropriate
     provided that we can ensure not to affect upgrades on existing
     hardware."

   * Without the Fix that hardware won't run Xenial guests under current
     Xenials Qemu version

   * The fix lets processors that support it run in PowerISA 2.07
     compatibility mode (plus a few no-op changes as backport
     dependencies)

  [Test Case]

   * Run a Xenial Guest in KVM on one of the specific HW revisions being
     affected.

  [Regression Potential]

   * I'd rate the potential to regress low for powerpc and next to 
     impossible for other architectures, reasons:
   * Changes are PPC only, so fallout should be contained to that
   * Patches and were created by IBM and in Upstream qemu since 2.6
   * The effective change is rather small, only allow to saner cpu model
     versions (drop some HW dev trash that was left) and add the new types.

  [Other Info]

   * Needed for certifying this Hardware for Ubuntu

  Upon running the virtualization test from the certification test
  suite, the kvm guest test fails with the following error:

  kvm_init_vcpu failed: Invalid argument

  This same test works on multiple other IBM Power 8 and Openpower
  servers. kvm-ok tells us that kvm virtualization is supported. I have
  tried with SMT enabled and disabled. I have tried the latest cloud
  image as well as previous onces we had saved. I have tried running the
  qemu-system-ppc64 command found below manually with the same error.

  The full output from the test is as follows:

  Executing KVM Test
  DEBUG:root:Starting KVM Test
  DEBUG:root:Cloud image location specified: http://10.1.10.2/cloud/xenial-server-cloudimg-ppc64el-disk1.img.
  DEBUG:root:Downloading xenial-server-cloudimg-ppc64el-disk1.img, from http://10.1.10.2
  DEBUG:root:Creating cloud user-data
  DEBUG:root:Creating cloud meta-data
  I: -input-charset not specified, using utf-8 (detected in locale settings)
  Total translation table size: 0
  Total rockridge attributes bytes: 331
  Total directory bytes: 0
  Path table size(bytes): 10
  Max brk space used 0
  183 extents written (0 MB)
  DEBUG:root:Attempting boot for:xenial-server-cloudimg-ppc64el-disk1.img
  DEBUG:root:Attaching Cloud config disk
  DEBUG:root:Using params:qemu-system-ppc64 -m 1024 -display none -nographic -net nic -net user,net=10.0.0.0/8,host=10.0.0.1,hostfwd=tcp::2222-:22 -enable-kvm -machine pseries,usb=off -cpu POWER8 -drive file=xenial-server-cloudimg-ppc64el-disk1.img,if=virtio -drive file=seed.iso,if=virtio
  INFO:root:Storing VM console output in /home/ubuntu/.cache/plainbox/sessions/canonical-certification-server-2017-01-12T22.19.34.session/CHECKBOX_DATA/virt_debug

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-59-generic 4.4.0-59.80
  ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
  Uname: Linux 4.4.0-59-generic ppc64le
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jan 12 22:18 seq
   crw-rw---- 1 root audio 116, 33 Jan 12 22:18 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: ppc64el
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Thu Jan 12 22:45:34 2017
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 002 Device 002: ID 125f:312b A-DATA Technology Co., Ltd. Superior S102 Pro
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse
   Bus 001 Device 002: ID 046b:ff01 American Megatrends, Inc.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  PciMultimedia:

  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 astdrmfb
  ProcKernelCmdLine: root=UUID=a7ce18b4-4614-485f-9346-b19b0415db3a ro fips=1
  ProcLoadAvg: 0.03 0.02 0.08 1/1288 11017
  ProcLocks:
   1: POSIX  ADVISORY  WRITE 3709 00:14:665 0 EOF
   2: POSIX  ADVISORY  WRITE 3593 00:14:655 0 EOF
   3: POSIX  ADVISORY  WRITE 1658 00:14:376 0 EOF
   4: FLOCK  ADVISORY  WRITE 3560 00:14:637 0 EOF
   5: POSIX  ADVISORY  WRITE 3571 00:14:640 0 EOF
  ProcSwaps:
   Filename				Type		Size	Used	Priority
   /swap.img                               file		8388544	0	-1
  ProcVersion: Linux version 4.4.0-59-generic (buildd@bos01-ppc64el-029) (gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) ) #80-Ubuntu SMP Fri Jan 6 17:35:59 UTC 2017
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-59-generic N/A
   linux-backports-modules-4.4.0-59-generic  N/A
   linux-firmware                            1.157.6
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  cpu_cores: Number of cores present = 20
  cpu_coreson: Number of cores online = 20
  cpu_dscr: DSCR is 0
  cpu_freq:
   min:	3.959 GHz (cpu 79)
   max:	3.988 GHz (cpu 81)
   avg:	3.974 GHz
  cpu_runmode:
   Could not retrieve current diagnostics mode,
   No kernel interface to firmware
  cpu_smt: SMT=8

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