[Bug 1764628] Please test proposed package

[Brian Murray]

Hello bugproxy, or anyone else affected,

Accepted util-linux into xenial-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/util-
linux/2.27.1-6ubuntu3.7 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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https://bugs.launchpad.net/bugs/1764628

Title:
  incorrect hypervisor and virtualization type reported in compat mode
  guest

Status in The Ubuntu-power-systems project:
  Fix Committed
Status in util-linux package in Ubuntu:
  Fix Released
Status in util-linux source package in Xenial:
  Fix Committed

Bug description:
  [IMPACT]

  In xenial lscpu prints the wrong "Hypervisor vendor" and
  "Virtualization type" on PowerVM or KVM systems. Incorrect hypervisor
  and virtualization type reported in ubuntu 16.04.04 guest running in
  P8compat mode on P9 boston-LC.

  [TEST]

  Curent output:

  ubuntu at P8lpar3:~$ dpkg -l "*util-linux*"
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name           Version      Architecture Description
  +++-==============-============-============-=================================
  ii  util-linux     2.31.1-0.4ub ppc64el      miscellaneous system utilities
  un  util-linux-loc <none>       <none>       (no description available)

  ubuntu at P8lpar3:~$ lscpu
  Architecture:        ppc64le
  Byte Order:          Little Endian
  CPU(s):              128
  On-line CPU(s) list: 0-127
  Thread(s) per core:  8
  Core(s) per socket:  1
  Socket(s):           16
  NUMA node(s):        2
  Model:               2.1 (pvr 004b 0201)
  Model name:          POWER8 (architected), altivec supported
  Hypervisor vendor: horizontal
  Virtualization type: full
  L1d cache:           64K
  L1i cache:           32K
  NUMA node0 CPU(s):
  NUMA node4 CPU(s):   0-127
  ubuntu at P8lpar3:~$

  Expected Output:

  $ lscpu
  Architecture:          ppc64le
  Byte Order:            Little Endian
  CPU(s):                128
  On-line CPU(s) list:   0-127
  Thread(s) per core:    8
  Core(s) per socket:    1
  Socket(s):             16
  NUMA node(s):          2
  Model:                 2.1 (pvr 004b 0201)
  Model name:            POWER8 (architected), altivec supported
  Hypervisor vendor:     pHyp
  Virtualization type:   para
  L1d cache:             64K
  L1i cache:             32K
  NUMA node0 CPU(s):
  NUMA node4 CPU(s):     0-127

  [Potential Regression]
  The fix changes the logic to how lscpu-dmi returns from read_hypervisor_dmi() this could introduce potential regression in platforms  that has incorrect DMI information.

  [Other Info]
  ---uname output---
  Linux guest 4.15.0-13-generic #14~16.04.1-Ubuntu SMP Sat Mar 17 03:03:53 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = boston-LC

  ---Debugger---
  A debugger is not configured

  ---Steps to Reproduce---
   Incorrect hypervisor and virtualization type reported in ubuntu 16.04.04 guest running in P8compat mode on P9 boston-LC:

  root at guest:/tmp# lscpu
  Architecture:          ppc64le
  Byte Order:            Little Endian
  CPU(s):                2
  On-line CPU(s) list:   0,1
  Thread(s) per core:    2
  Core(s) per socket:    1
  Socket(s):             1
  NUMA node(s):          1
  Model:                 2.2 (pvr 004e 1202)
  Model name:            POWER8 (architected), altivec supported
  >> Hypervisor vendor:     horizontal
  >> Virtualization type:   full
  L1d cache:             32K
  L1i cache:             32K
  NUMA node0 CPU(s):     0,1

  Stack trace output:
   no

  Oops output:
   no

  We test what is coming along with distro. If you are not able to see
  issue with : https://launchpad.net/ubuntu/+source/util-
  linux/2.27.1-6ubuntu3.5 .. can we get this included in 16.04.x train ?

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