[Bug 1837443] Re: [Power9][Witherspoon dd2.3] unable to set hwclock

[Andrew Cloke]

** No longer affects: util-linux (Ubuntu)

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Title:
  [Power9][Witherspoon dd2.3] unable to set hwclock

Status in The Ubuntu-power-systems project:
  Fix Released

Bug description:
  On the upgraded witherspoon Power9 system we are unable to set
  hwclock.

  ubuntu at bobone:~$ uname -a 
  Linux bobone 5.0.0-20-generic #21-Ubuntu SMP Mon Jun 24 09:31:42 UTC 2019 ppc64le ppc64le ppc64le GNU/Linux
  ubuntu at bobone:~$ cat /etc/issue
  Ubuntu 19.04 \n \l

  ubuntu at bobone:~$ date 
  Mon Jul 22 18:25:04 UTC 2019
  ubuntu at bobone:~$ sudo /sbin/hwclock --set --date "2004/11/22 04:10:00"; sleep 5s; sudo /sbin/hwclock
  2019-07-22 18:25:26.799805+00:00
  ubuntu at bobone:~$ 

  ubuntu at bobone:~$ sudo /sbin/hwclock --set --date "2004/11/22 04:10:00"; sleep 5s; sudo /sbin/hwclock --verbose
  hwclock from util-linux 2.33.1
  System Time: 1563820048.938797
  Trying to open: /dev/rtc0
  Using the rtc interface to the clock.
  Last drift adjustment done at 1101096600 seconds after 1969
  Last calibration done at 1101096600 seconds after 1969
  Hardware clock is on UTC time
  Assuming hardware clock is kept in UTC time.
  Waiting for clock tick...
  ioctl(4, RTC_UIE_ON, 0): Invalid argument
  Waiting in loop for time from /dev/rtc0 to change
  ...got clock tick
  Time read from Hardware Clock: 2019/07/22 18:27:29
  Hw clock time : 2019/07/22 18:27:29 = 1563820049 seconds since 1969
  Time since last adjustment is 462723449 seconds
  Calculated Hardware Clock drift is 0.000000 seconds
  2019-07-22 18:27:28.877732+00:00
  ubuntu at bobone:~$

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