[Bug 1874646] Re: Don't modify /run/run.vupdate unnecessarily

[Mathew Hodson]

** Summary changed:

- Update libvpd package to v2.2.7
+ Don't modify /run/run.vupdate unnecessarily

** Changed in: libvpd (Ubuntu Focal)
   Importance: Undecided => Medium

** Changed in: libvpd (Ubuntu Groovy)
   Importance: Undecided => Medium

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Title:
  Don't modify /run/run.vupdate unnecessarily

Status in The Ubuntu-power-systems project:
  In Progress
Status in libvpd package in Ubuntu:
  Fix Released
Status in libvpd source package in Focal:
  In Progress
Status in libvpd source package in Groovy:
  Fix Released

Bug description:
  This section is for Focal SRU purpose

  [Impact]

  A udev script is getting triggered whenever there is a change in
  sysfs. All is does is "/bin/touch /run/run.vpdupdate".

  Script was generic and used to trigger whenever there is any change in /sys/devices/ node.
  On large system it resulted in calling udev script number of times during boot and impacted on boot time performance.

  [Test Case]
  It is unfortunately difficult to reproduce this problem with the proper hardware setup so IBM will very that the new udev script is in place and acting as expected and that /run/run.vupdate isn't modified unnecessarily.

  [Regression Potential] 
  Even if unlikely a regression potential would be to prevent the system to boot.

  --

  Initial Bug Description below:

  == Comment: #0 - Shivaprasad G. Bhat <shivapbh at in.ibm.com> - 2020-04-24 02:51:41 ==
  ---Problem Description---
  Update libvpd package to v2.2.7

  Contact Information = shivapbh at in.ibm.com

  ---Additional Hardware Info---
  ppc64le

  ---uname output---
  ppc64le

  Machine Type = IBM Power

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

  ---Steps to Reproduce---
   Sources are moved to github at

  https://github.com/power-ras/libvpd.git

  Update both libvpd and libvpd-dev

  Userspace tool common name: libvpd

  The userspace tool has the following bit modes: 64-bit

  Userspace rpm: libvpd

  Userspace tool obtained from project website:  na

  *Additional Instructions for shivapbh at in.ibm.com:
  -Post a private note with access information to the machine that the bug is occuring on.
  -Attach ltrace and strace of userspace application.

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