This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-bionic

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https://bugs.launchpad.net/bugs/1892546

Title:
  Novalink (mkvterm command failure)

Status in The Ubuntu-power-systems project:
  Fix Committed
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Focal:
  Fix Committed
Status in linux source package in Groovy:
  In Progress

Bug description:
  SRU Justification:

  [Impact]
  * drmgr command is failing while trying to open console for IBMi on PowerVM 
LPAR

  [Fix]
  * 63ffcbdad738 "tty: hvcs: Don't NULL tty->driver_data until hvcs_cleanup()"

  [Test Case]
  * Create a VM from PowerVC on a Novalink managed host. 
  * Unmanage and manage the VM, this problem gets reproduced.
  * grep the logs for "drmgr"

  
  [Regression Potential]
  The regression can be considered as very low, since:
  * limited to the IBM Hypervisor Virtual Console Server.
  * patched kernel where shared and successfully tested by IBM.
  * the worse case, if the cleanup is broken a new opened connection might 
break.

  [Other]
  * The patch got upstream accepted.

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